WebSVN – Kolibri OS – Diff – /drivers/video/drm/i915/intel_display.c

 /*
  * Copyright © 2006-2007 Intel Corporation
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
+ *
  * The above copyright notice and this permission notice (including the next
  * paragraph) shall be included in all copies or substantial portions of the
  * Software.
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  * DEALINGS IN THE SOFTWARE.
+ *
  * Authors:
  *  Eric Anholt
  */
 //#include
 #include
 //#include
 #include
 #include
 #include
 #include
 #include
 #include
 #include "intel_drv.h"
 #include
 #include "i915_drv.h"
 #include "i915_trace.h"
 #include
 #include
+#include
+#include
-//#include
+#include
+static inline void ndelay(unsigned long x)
+{
+    udelay(DIV_ROUND_UP(x, 1000));
+}
+/* Primary plane formats supported by all gen */
+#define COMMON_PRIMARY_FORMATS \
+	DRM_FORMAT_C8, \
+	DRM_FORMAT_RGB565, \
+	DRM_FORMAT_XRGB8888, \
+	DRM_FORMAT_ARGB8888
+/* Primary plane formats for gen <= 3 */
+static const uint32_t intel_primary_formats_gen2[] = {
+	COMMON_PRIMARY_FORMATS,
+	DRM_FORMAT_XRGB1555,
+	DRM_FORMAT_ARGB1555,
+};
+/* Primary plane formats for gen >= 4 */
+static const uint32_t intel_primary_formats_gen4[] = {
+	COMMON_PRIMARY_FORMATS, \
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_XRGB2101010,
+	DRM_FORMAT_ARGB2101010,
+	DRM_FORMAT_XBGR2101010,
+	DRM_FORMAT_ABGR2101010,
+};
+/* Cursor formats */
+static const uint32_t intel_cursor_formats[] = {
+	DRM_FORMAT_ARGB8888,
+};
+#define DIV_ROUND_CLOSEST_ULL(ll, d)	\
+({ unsigned long long _tmp = (ll)+(d)/2; do_div(_tmp, d); _tmp; })
 #define MAX_ERRNO       4095
 phys_addr_t get_bus_addr(void);
 static inline void outb(u8 v, u16 port)
+{
     asm volatile("outb %0,%1" : : "a" (v), "dN" (port));
+}
 static inline u8 inb(u16 port)
+{
     u8 v;
     asm volatile("inb %1,%0" : "=a" (v) : "dN" (port));
     return v;
+}
+static void intel_increase_pllclock(struct drm_device *dev,
-static void intel_increase_pllclock(struct drm_crtc *crtc);
+				    enum pipe pipe);
-static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on);
+void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on);
 static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
 				struct intel_crtc_config *pipe_config);
 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
 				    struct intel_crtc_config *pipe_config);
 static int intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
 			  int x, int y, struct drm_framebuffer *old_fb);
+static int intel_framebuffer_init(struct drm_device *dev,
+				  struct intel_framebuffer *ifb,
+				  struct drm_mode_fb_cmd2 *mode_cmd,
+				  struct drm_i915_gem_object *obj);
+static void intel_dp_set_m_n(struct intel_crtc *crtc);
+static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc);
+static void intel_set_pipe_timings(struct intel_crtc *intel_crtc);
+static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
+					 struct intel_link_m_n *m_n);
+static void ironlake_set_pipeconf(struct drm_crtc *crtc);
+static void haswell_set_pipeconf(struct drm_crtc *crtc);
+static void intel_set_pipe_csc(struct drm_crtc *crtc);
+static void vlv_prepare_pll(struct intel_crtc *crtc);
+static struct intel_encoder *intel_find_encoder(struct intel_connector *connector, int pipe)
+{
+	if (!connector->mst_port)
+		return connector->encoder;
+	else
+		return &connector->mst_port->mst_encoders[pipe]->base;
+}
 typedef struct {
     int min, max;
 } intel_range_t;
 typedef struct {
     int dot_limit;
     int p2_slow, p2_fast;
 } intel_p2_t;
 typedef struct intel_limit intel_limit_t;
 struct intel_limit {
     intel_range_t   dot, vco, n, m, m1, m2, p, p1;
     intel_p2_t      p2;
 };
 int
 intel_pch_rawclk(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	WARN_ON(!HAS_PCH_SPLIT(dev));
 	return I915_READ(PCH_RAWCLK_FREQ) & RAWCLK_FREQ_MASK;
+}
 static inline u32 /* units of 100MHz */
 intel_fdi_link_freq(struct drm_device *dev)
+{
 	if (IS_GEN5(dev)) {
 		struct drm_i915_private *dev_priv = dev->dev_private;
 		return (I915_READ(FDI_PLL_BIOS_0) & FDI_PLL_FB_CLOCK_MASK) + 2;
 	} else
 		return 27;
+}
 static const intel_limit_t intel_limits_i8xx_dac = {
 	.dot = { .min = 25000, .max = 350000 },
 	.vco = { .min = 908000, .max = 1512000 },
 	.n = { .min = 2, .max = 16 },
 	.m = { .min = 96, .max = 140 },
 	.m1 = { .min = 18, .max = 26 },
 	.m2 = { .min = 6, .max = 16 },
 	.p = { .min = 4, .max = 128 },
 	.p1 = { .min = 2, .max = 33 },
 	.p2 = { .dot_limit = 165000,
 		.p2_slow = 4, .p2_fast = 2 },
 };
 static const intel_limit_t intel_limits_i8xx_dvo = {
         .dot = { .min = 25000, .max = 350000 },
 	.vco = { .min = 908000, .max = 1512000 },
 	.n = { .min = 2, .max = 16 },
         .m = { .min = 96, .max = 140 },
         .m1 = { .min = 18, .max = 26 },
         .m2 = { .min = 6, .max = 16 },
         .p = { .min = 4, .max = 128 },
         .p1 = { .min = 2, .max = 33 },
 	.p2 = { .dot_limit = 165000,
 		.p2_slow = 4, .p2_fast = 4 },
 };
 static const intel_limit_t intel_limits_i8xx_lvds = {
         .dot = { .min = 25000, .max = 350000 },
 	.vco = { .min = 908000, .max = 1512000 },
 	.n = { .min = 2, .max = 16 },
         .m = { .min = 96, .max = 140 },
         .m1 = { .min = 18, .max = 26 },
         .m2 = { .min = 6, .max = 16 },
         .p = { .min = 4, .max = 128 },
         .p1 = { .min = 1, .max = 6 },
 	.p2 = { .dot_limit = 165000,
 		.p2_slow = 14, .p2_fast = 7 },
 };
 static const intel_limit_t intel_limits_i9xx_sdvo = {
         .dot = { .min = 20000, .max = 400000 },
         .vco = { .min = 1400000, .max = 2800000 },
         .n = { .min = 1, .max = 6 },
         .m = { .min = 70, .max = 120 },
 	.m1 = { .min = 8, .max = 18 },
 	.m2 = { .min = 3, .max = 7 },
         .p = { .min = 5, .max = 80 },
         .p1 = { .min = 1, .max = 8 },
 	.p2 = { .dot_limit = 200000,
 		.p2_slow = 10, .p2_fast = 5 },
 };
 static const intel_limit_t intel_limits_i9xx_lvds = {
         .dot = { .min = 20000, .max = 400000 },
         .vco = { .min = 1400000, .max = 2800000 },
         .n = { .min = 1, .max = 6 },
         .m = { .min = 70, .max = 120 },
 	.m1 = { .min = 8, .max = 18 },
 	.m2 = { .min = 3, .max = 7 },
         .p = { .min = 7, .max = 98 },
         .p1 = { .min = 1, .max = 8 },
 	.p2 = { .dot_limit = 112000,
 		.p2_slow = 14, .p2_fast = 7 },
 };
 static const intel_limit_t intel_limits_g4x_sdvo = {
 	.dot = { .min = 25000, .max = 270000 },
 	.vco = { .min = 1750000, .max = 3500000},
 	.n = { .min = 1, .max = 4 },
 	.m = { .min = 104, .max = 138 },
 	.m1 = { .min = 17, .max = 23 },
 	.m2 = { .min = 5, .max = 11 },
 	.p = { .min = 10, .max = 30 },
 	.p1 = { .min = 1, .max = 3},
 	.p2 = { .dot_limit = 270000,
 		.p2_slow = 10,
 		.p2_fast = 10
 	},
 };
 static const intel_limit_t intel_limits_g4x_hdmi = {
 	.dot = { .min = 22000, .max = 400000 },
 	.vco = { .min = 1750000, .max = 3500000},
 	.n = { .min = 1, .max = 4 },
 	.m = { .min = 104, .max = 138 },
 	.m1 = { .min = 16, .max = 23 },
 	.m2 = { .min = 5, .max = 11 },
 	.p = { .min = 5, .max = 80 },
 	.p1 = { .min = 1, .max = 8},
 	.p2 = { .dot_limit = 165000,
 		.p2_slow = 10, .p2_fast = 5 },
 };
 static const intel_limit_t intel_limits_g4x_single_channel_lvds = {
 	.dot = { .min = 20000, .max = 115000 },
 	.vco = { .min = 1750000, .max = 3500000 },
 	.n = { .min = 1, .max = 3 },
 	.m = { .min = 104, .max = 138 },
 	.m1 = { .min = 17, .max = 23 },
 	.m2 = { .min = 5, .max = 11 },
 	.p = { .min = 28, .max = 112 },
 	.p1 = { .min = 2, .max = 8 },
 	.p2 = { .dot_limit = 0,
 		.p2_slow = 14, .p2_fast = 14
 	},
 };
 static const intel_limit_t intel_limits_g4x_dual_channel_lvds = {
 	.dot = { .min = 80000, .max = 224000 },
 	.vco = { .min = 1750000, .max = 3500000 },
 	.n = { .min = 1, .max = 3 },
 	.m = { .min = 104, .max = 138 },
 	.m1 = { .min = 17, .max = 23 },
 	.m2 = { .min = 5, .max = 11 },
 	.p = { .min = 14, .max = 42 },
 	.p1 = { .min = 2, .max = 6 },
 	.p2 = { .dot_limit = 0,
 		.p2_slow = 7, .p2_fast = 7
 	},
 };
 static const intel_limit_t intel_limits_pineview_sdvo = {
         .dot = { .min = 20000, .max = 400000},
         .vco = { .min = 1700000, .max = 3500000 },
 	/* Pineview's Ncounter is a ring counter */
         .n = { .min = 3, .max = 6 },
         .m = { .min = 2, .max = 256 },
 	/* Pineview only has one combined m divider, which we treat as m2. */
         .m1 = { .min = 0, .max = 0 },
         .m2 = { .min = 0, .max = 254 },
         .p = { .min = 5, .max = 80 },
         .p1 = { .min = 1, .max = 8 },
 	.p2 = { .dot_limit = 200000,
 		.p2_slow = 10, .p2_fast = 5 },
 };
 static const intel_limit_t intel_limits_pineview_lvds = {
         .dot = { .min = 20000, .max = 400000 },
         .vco = { .min = 1700000, .max = 3500000 },
         .n = { .min = 3, .max = 6 },
         .m = { .min = 2, .max = 256 },
         .m1 = { .min = 0, .max = 0 },
         .m2 = { .min = 0, .max = 254 },
         .p = { .min = 7, .max = 112 },
         .p1 = { .min = 1, .max = 8 },
 	.p2 = { .dot_limit = 112000,
 		.p2_slow = 14, .p2_fast = 14 },
 };
 /* Ironlake / Sandybridge
+ *
  * We calculate clock using (register_value + 2) for N/M1/M2, so here
  * the range value for them is (actual_value - 2).
  */
 static const intel_limit_t intel_limits_ironlake_dac = {
 	.dot = { .min = 25000, .max = 350000 },
 	.vco = { .min = 1760000, .max = 3510000 },
 	.n = { .min = 1, .max = 5 },
 	.m = { .min = 79, .max = 127 },
 	.m1 = { .min = 12, .max = 22 },
 	.m2 = { .min = 5, .max = 9 },
 	.p = { .min = 5, .max = 80 },
 	.p1 = { .min = 1, .max = 8 },
 	.p2 = { .dot_limit = 225000,
 		.p2_slow = 10, .p2_fast = 5 },
 };
 static const intel_limit_t intel_limits_ironlake_single_lvds = {
 	.dot = { .min = 25000, .max = 350000 },
 	.vco = { .min = 1760000, .max = 3510000 },
 	.n = { .min = 1, .max = 3 },
 	.m = { .min = 79, .max = 118 },
 	.m1 = { .min = 12, .max = 22 },
 	.m2 = { .min = 5, .max = 9 },
 	.p = { .min = 28, .max = 112 },
 	.p1 = { .min = 2, .max = 8 },
 	.p2 = { .dot_limit = 225000,
 		.p2_slow = 14, .p2_fast = 14 },
 };
 static const intel_limit_t intel_limits_ironlake_dual_lvds = {
 	.dot = { .min = 25000, .max = 350000 },
 	.vco = { .min = 1760000, .max = 3510000 },
 	.n = { .min = 1, .max = 3 },
 	.m = { .min = 79, .max = 127 },
 	.m1 = { .min = 12, .max = 22 },
 	.m2 = { .min = 5, .max = 9 },
 	.p = { .min = 14, .max = 56 },
 	.p1 = { .min = 2, .max = 8 },
 	.p2 = { .dot_limit = 225000,
 		.p2_slow = 7, .p2_fast = 7 },
 };
 /* LVDS 100mhz refclk limits. */
 static const intel_limit_t intel_limits_ironlake_single_lvds_100m = {
 	.dot = { .min = 25000, .max = 350000 },
 	.vco = { .min = 1760000, .max = 3510000 },
 	.n = { .min = 1, .max = 2 },
 	.m = { .min = 79, .max = 126 },
 	.m1 = { .min = 12, .max = 22 },
 	.m2 = { .min = 5, .max = 9 },
 	.p = { .min = 28, .max = 112 },
 	.p1 = { .min = 2, .max = 8 },
 	.p2 = { .dot_limit = 225000,
 		.p2_slow = 14, .p2_fast = 14 },
 };
 static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
 	.dot = { .min = 25000, .max = 350000 },
 	.vco = { .min = 1760000, .max = 3510000 },
 	.n = { .min = 1, .max = 3 },
 	.m = { .min = 79, .max = 126 },
 	.m1 = { .min = 12, .max = 22 },
 	.m2 = { .min = 5, .max = 9 },
 	.p = { .min = 14, .max = 42 },
 	.p1 = { .min = 2, .max = 6 },
 	.p2 = { .dot_limit = 225000,
 		.p2_slow = 7, .p2_fast = 7 },
 };
 static const intel_limit_t intel_limits_vlv = {
 	 /*
 	  * These are the data rate limits (measured in fast clocks)
 	  * since those are the strictest limits we have. The fast
 	  * clock and actual rate limits are more relaxed, so checking
 	  * them would make no difference.
 	  */
 	.dot = { .min = 25000 * 5, .max = 270000 * 5 },
 	.vco = { .min = 4000000, .max = 6000000 },
 	.n = { .min = 1, .max = 7 },
 	.m1 = { .min = 2, .max = 3 },
 	.m2 = { .min = 11, .max = 156 },
 	.p1 = { .min = 2, .max = 3 },
 	.p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */
 };
+static const intel_limit_t intel_limits_chv = {
+	/*
+	 * These are the data rate limits (measured in fast clocks)
+	 * since those are the strictest limits we have.  The fast
+	 * clock and actual rate limits are more relaxed, so checking
+	 * them would make no difference.
+	 */
+	.dot = { .min = 25000 * 5, .max = 540000 * 5},
+	.vco = { .min = 4860000, .max = 6700000 },
+	.n = { .min = 1, .max = 1 },
+	.m1 = { .min = 2, .max = 2 },
+	.m2 = { .min = 24 << 22, .max = 175 << 22 },
+	.p1 = { .min = 2, .max = 4 },
+	.p2 = {	.p2_slow = 1, .p2_fast = 14 },
+};
 static void vlv_clock(int refclk, intel_clock_t *clock)
+{
 	clock->m = clock->m1 * clock->m2;
 	clock->p = clock->p1 * clock->p2;
 	if (WARN_ON(clock->n == 0 || clock->p == 0))
 		return;
 	clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
 	clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
+}
 /**
  * Returns whether any output on the specified pipe is of the specified type
  */
 static bool intel_pipe_has_type(struct drm_crtc *crtc, int type)
+{
 	struct drm_device *dev = crtc->dev;
 	struct intel_encoder *encoder;
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		if (encoder->type == type)
 			return true;
 	return false;
+}
 static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
 						int refclk)
+{
 	struct drm_device *dev = crtc->dev;
 	const intel_limit_t *limit;
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
 		if (intel_is_dual_link_lvds(dev)) {
 			if (refclk == 100000)
 				limit = &intel_limits_ironlake_dual_lvds_100m;
 			else
 				limit = &intel_limits_ironlake_dual_lvds;
 		} else {
 			if (refclk == 100000)
 				limit = &intel_limits_ironlake_single_lvds_100m;
 			else
 				limit = &intel_limits_ironlake_single_lvds;
+		}
 	} else
 		limit = &intel_limits_ironlake_dac;
 	return limit;
+}
 static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	const intel_limit_t *limit;
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
 		if (intel_is_dual_link_lvds(dev))
 			limit = &intel_limits_g4x_dual_channel_lvds;
 		else
 			limit = &intel_limits_g4x_single_channel_lvds;
 	} else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
 		   intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
 		limit = &intel_limits_g4x_hdmi;
 	} else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
 		limit = &intel_limits_g4x_sdvo;
 	} else /* The option is for other outputs */
 		limit = &intel_limits_i9xx_sdvo;
 	return limit;
+}
 static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
+{
 	struct drm_device *dev = crtc->dev;
 	const intel_limit_t *limit;
 	if (HAS_PCH_SPLIT(dev))
 		limit = intel_ironlake_limit(crtc, refclk);
 	else if (IS_G4X(dev)) {
 		limit = intel_g4x_limit(crtc);
 	} else if (IS_PINEVIEW(dev)) {
 		if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
 			limit = &intel_limits_pineview_lvds;
 		else
 			limit = &intel_limits_pineview_sdvo;
+	} else if (IS_CHERRYVIEW(dev)) {
+		limit = &intel_limits_chv;
 	} else if (IS_VALLEYVIEW(dev)) {
 		limit = &intel_limits_vlv;
 	} else if (!IS_GEN2(dev)) {
 		if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
 			limit = &intel_limits_i9xx_lvds;
 		else
 			limit = &intel_limits_i9xx_sdvo;
 	} else {
 		if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
 			limit = &intel_limits_i8xx_lvds;
 		else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DVO))
 			limit = &intel_limits_i8xx_dvo;
 		else
 			limit = &intel_limits_i8xx_dac;
+	}
 	return limit;
+}
 /* m1 is reserved as 0 in Pineview, n is a ring counter */
 static void pineview_clock(int refclk, intel_clock_t *clock)
+{
 	clock->m = clock->m2 + 2;
 	clock->p = clock->p1 * clock->p2;
 	if (WARN_ON(clock->n == 0 || clock->p == 0))
 		return;
 	clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
 	clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
+}
 static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
+{
 	return 5 * (dpll->m1 + 2) + (dpll->m2 + 2);
+}
 static void i9xx_clock(int refclk, intel_clock_t *clock)
+{
 	clock->m = i9xx_dpll_compute_m(clock);
 	clock->p = clock->p1 * clock->p2;
 	if (WARN_ON(clock->n + 2 == 0 || clock->p == 0))
 		return;
 	clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2);
 	clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
+}
+static void chv_clock(int refclk, intel_clock_t *clock)
+{
+	clock->m = clock->m1 * clock->m2;
+	clock->p = clock->p1 * clock->p2;
+	if (WARN_ON(clock->n == 0 || clock->p == 0))
+		return;
+	clock->vco = DIV_ROUND_CLOSEST_ULL((uint64_t)refclk * clock->m,
+			clock->n << 22);
+	clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
+}
 #define INTELPllInvalid(s)   do { /* DRM_DEBUG(s); */ return false; } while (0)
 /**
  * Returns whether the given set of divisors are valid for a given refclk with
  * the given connectors.
  */
 static bool intel_PLL_is_valid(struct drm_device *dev,
 			       const intel_limit_t *limit,
 			       const intel_clock_t *clock)
+{
 	if (clock->n   < limit->n.min   || limit->n.max   < clock->n)
 		INTELPllInvalid("n out of range\n");
 	if (clock->p1  < limit->p1.min  || limit->p1.max  < clock->p1)
 		INTELPllInvalid("p1 out of range\n");
 	if (clock->m2  < limit->m2.min  || limit->m2.max  < clock->m2)
 		INTELPllInvalid("m2 out of range\n");
 	if (clock->m1  < limit->m1.min  || limit->m1.max  < clock->m1)
 		INTELPllInvalid("m1 out of range\n");
 	if (!IS_PINEVIEW(dev) && !IS_VALLEYVIEW(dev))
 		if (clock->m1 <= clock->m2)
 		INTELPllInvalid("m1 <= m2\n");
 	if (!IS_VALLEYVIEW(dev)) {
 		if (clock->p < limit->p.min || limit->p.max < clock->p)
 			INTELPllInvalid("p out of range\n");
 	if (clock->m   < limit->m.min   || limit->m.max   < clock->m)
 		INTELPllInvalid("m out of range\n");
+	}
 	if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
 		INTELPllInvalid("vco out of range\n");
 	/* XXX: We may need to be checking "Dot clock" depending on the multiplier,
 	 * connector, etc., rather than just a single range.
 	 */
 	if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
 		INTELPllInvalid("dot out of range\n");
 	return true;
+}
 static bool
 i9xx_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
 		    int target, int refclk, intel_clock_t *match_clock,
 		    intel_clock_t *best_clock)
+{
 	struct drm_device *dev = crtc->dev;
 	intel_clock_t clock;
 	int err = target;
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
 		/*
 		 * For LVDS just rely on its current settings for dual-channel.
 		 * We haven't figured out how to reliably set up different
 		 * single/dual channel state, if we even can.
 		 */
 		if (intel_is_dual_link_lvds(dev))
 			clock.p2 = limit->p2.p2_fast;
 		else
 			clock.p2 = limit->p2.p2_slow;
 	} else {
 		if (target < limit->p2.dot_limit)
 			clock.p2 = limit->p2.p2_slow;
 		else
 			clock.p2 = limit->p2.p2_fast;
+	}
 	memset(best_clock, 0, sizeof(*best_clock));
 	for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
 	     clock.m1++) {
 		for (clock.m2 = limit->m2.min;
 		     clock.m2 <= limit->m2.max; clock.m2++) {
 			if (clock.m2 >= clock.m1)
 				break;
 			for (clock.n = limit->n.min;
 			     clock.n <= limit->n.max; clock.n++) {
 				for (clock.p1 = limit->p1.min;
 					clock.p1 <= limit->p1.max; clock.p1++) {
 					int this_err;
 					i9xx_clock(refclk, &clock);
 					if (!intel_PLL_is_valid(dev, limit,
 								&clock))
 						continue;
 					if (match_clock &&
 					    clock.p != match_clock->p)
 						continue;
 					this_err = abs(clock.dot - target);
 					if (this_err < err) {
 						*best_clock = clock;
 						err = this_err;
+					}
+				}
+			}
+		}
+	}
 	return (err != target);
+}
 static bool
 pnv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
 		   int target, int refclk, intel_clock_t *match_clock,
 		   intel_clock_t *best_clock)
+{
 	struct drm_device *dev = crtc->dev;
 	intel_clock_t clock;
 	int err = target;
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
 		/*
 		 * For LVDS just rely on its current settings for dual-channel.
 		 * We haven't figured out how to reliably set up different
 		 * single/dual channel state, if we even can.
 		 */
 		if (intel_is_dual_link_lvds(dev))
 			clock.p2 = limit->p2.p2_fast;
 		else
 			clock.p2 = limit->p2.p2_slow;
 	} else {
 		if (target < limit->p2.dot_limit)
 			clock.p2 = limit->p2.p2_slow;
 		else
 			clock.p2 = limit->p2.p2_fast;
+	}
 	memset(best_clock, 0, sizeof(*best_clock));
 	for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
 	     clock.m1++) {
 		for (clock.m2 = limit->m2.min;
 		     clock.m2 <= limit->m2.max; clock.m2++) {
 			for (clock.n = limit->n.min;
 			     clock.n <= limit->n.max; clock.n++) {
 				for (clock.p1 = limit->p1.min;
 					clock.p1 <= limit->p1.max; clock.p1++) {
 					int this_err;
 					pineview_clock(refclk, &clock);
 					if (!intel_PLL_is_valid(dev, limit,
 								&clock))
 						continue;
 					if (match_clock &&
 					    clock.p != match_clock->p)
 						continue;
 					this_err = abs(clock.dot - target);
 					if (this_err < err) {
 						*best_clock = clock;
 						err = this_err;
+					}
+				}
+			}
+		}
+	}
 	return (err != target);
+}
 static bool
 g4x_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
 			int target, int refclk, intel_clock_t *match_clock,
 			intel_clock_t *best_clock)
+{
 	struct drm_device *dev = crtc->dev;
 	intel_clock_t clock;
 	int max_n;
 	bool found;
 	/* approximately equals target * 0.00585 */
 	int err_most = (target >> 8) + (target >> 9);
 	found = false;
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
 		if (intel_is_dual_link_lvds(dev))
 			clock.p2 = limit->p2.p2_fast;
 		else
 			clock.p2 = limit->p2.p2_slow;
 	} else {
 		if (target < limit->p2.dot_limit)
 			clock.p2 = limit->p2.p2_slow;
 		else
 			clock.p2 = limit->p2.p2_fast;
+	}
 	memset(best_clock, 0, sizeof(*best_clock));
 	max_n = limit->n.max;
 	/* based on hardware requirement, prefer smaller n to precision */
 	for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
 		/* based on hardware requirement, prefere larger m1,m2 */
 		for (clock.m1 = limit->m1.max;
 		     clock.m1 >= limit->m1.min; clock.m1--) {
 			for (clock.m2 = limit->m2.max;
 			     clock.m2 >= limit->m2.min; clock.m2--) {
 				for (clock.p1 = limit->p1.max;
 				     clock.p1 >= limit->p1.min; clock.p1--) {
 					int this_err;
 					i9xx_clock(refclk, &clock);
 					if (!intel_PLL_is_valid(dev, limit,
 								&clock))
 						continue;
 					this_err = abs(clock.dot - target);
 					if (this_err < err_most) {
 						*best_clock = clock;
 						err_most = this_err;
 						max_n = clock.n;
 						found = true;
+					}
+				}
+			}
+		}
+	}
 	return found;
+}
 static bool
 vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
 			int target, int refclk, intel_clock_t *match_clock,
 			intel_clock_t *best_clock)
+{
 	struct drm_device *dev = crtc->dev;
 	intel_clock_t clock;
 	unsigned int bestppm = 1000000;
 	/* min update 19.2 MHz */
 	int max_n = min(limit->n.max, refclk / 19200);
 	bool found = false;
 	target *= 5; /* fast clock */
 	memset(best_clock, 0, sizeof(*best_clock));
 	/* based on hardware requirement, prefer smaller n to precision */
 	for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
 		for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
 			for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow;
 			     clock.p2 -= clock.p2 > 10 ? 2 : 1) {
 				clock.p = clock.p1 * clock.p2;
 				/* based on hardware requirement, prefer bigger m1,m2 values */
 				for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) {
 					unsigned int ppm, diff;
 					clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n,
 								     refclk * clock.m1);
 					vlv_clock(refclk, &clock);
 					if (!intel_PLL_is_valid(dev, limit,
 								&clock))
 						continue;
 					diff = abs(clock.dot - target);
 					ppm = div_u64(1000000ULL * diff, target);
 					if (ppm < 100 && clock.p > best_clock->p) {
 							bestppm = 0;
 						*best_clock = clock;
 						found = true;
+						}
 					if (bestppm >= 10 && ppm < bestppm - 10) {
 						bestppm = ppm;
 						*best_clock = clock;
 						found = true;
+						}
+						}
+					}
+				}
+			}
 	return found;
+}
+static bool
+chv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
+		   int target, int refclk, intel_clock_t *match_clock,
+		   intel_clock_t *best_clock)
+{
+	struct drm_device *dev = crtc->dev;
+	intel_clock_t clock;
+	uint64_t m2;
+	int found = false;
+	memset(best_clock, 0, sizeof(*best_clock));
+	/*
+	 * Based on hardware doc, the n always set to 1, and m1 always
+	 * set to 2.  If requires to support 200Mhz refclk, we need to
+	 * revisit this because n may not 1 anymore.
+	 */
+	clock.n = 1, clock.m1 = 2;
+	target *= 5;	/* fast clock */
+	for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
+		for (clock.p2 = limit->p2.p2_fast;
+				clock.p2 >= limit->p2.p2_slow;
+				clock.p2 -= clock.p2 > 10 ? 2 : 1) {
+			clock.p = clock.p1 * clock.p2;
+			m2 = DIV_ROUND_CLOSEST_ULL(((uint64_t)target * clock.p *
+					clock.n) << 22, refclk * clock.m1);
+			if (m2 > INT_MAX/clock.m1)
+				continue;
+			clock.m2 = m2;
+			chv_clock(refclk, &clock);
+			if (!intel_PLL_is_valid(dev, limit, &clock))
+				continue;
+			/* based on hardware requirement, prefer bigger p
+			 */
+			if (clock.p > best_clock->p) {
+				*best_clock = clock;
+				found = true;
+			}
+		}
+	}
+	return found;
+}
 bool intel_crtc_active(struct drm_crtc *crtc)
+{
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	/* Be paranoid as we can arrive here with only partial
 	 * state retrieved from the hardware during setup.
+	 *
 	 * We can ditch the adjusted_mode.crtc_clock check as soon
 	 * as Haswell has gained clock readout/fastboot support.
+	 *
-	 * We can ditch the crtc->fb check as soon as we can
+	 * We can ditch the crtc->primary->fb check as soon as we can
 	 * properly reconstruct framebuffers.
 	 */
-	return intel_crtc->active && crtc->fb &&
+	return intel_crtc->active && crtc->primary->fb &&
 		intel_crtc->config.adjusted_mode.crtc_clock;
+}
 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
 					     enum pipe pipe)
+{
 	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	return intel_crtc->config.cpu_transcoder;
+}
 static void g4x_wait_for_vblank(struct drm_device *dev, int pipe)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 frame, frame_reg = PIPE_FRMCOUNT_GM45(pipe);
 	frame = I915_READ(frame_reg);
 	if (wait_for(I915_READ_NOTRACE(frame_reg) != frame, 50))
-		DRM_DEBUG_KMS("vblank wait timed out\n");
+		WARN(1, "vblank wait timed out\n");
+}
 /**
  * intel_wait_for_vblank - wait for vblank on a given pipe
  * @dev: drm device
  * @pipe: pipe to wait for
+ *
  * Wait for vblank to occur on a given pipe.  Needed for various bits of
  * mode setting code.
  */
 void intel_wait_for_vblank(struct drm_device *dev, int pipe)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipestat_reg = PIPESTAT(pipe);
 	if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) {
 		g4x_wait_for_vblank(dev, pipe);
 		return;
+	}
 	/* Clear existing vblank status. Note this will clear any other
 	 * sticky status fields as well.
+	 *
 	 * This races with i915_driver_irq_handler() with the result
 	 * that either function could miss a vblank event.  Here it is not
 	 * fatal, as we will either wait upon the next vblank interrupt or
 	 * timeout.  Generally speaking intel_wait_for_vblank() is only
 	 * called during modeset at which time the GPU should be idle and
 	 * should *not* be performing page flips and thus not waiting on
 	 * vblanks...
 	 * Currently, the result of us stealing a vblank from the irq
 	 * handler is that a single frame will be skipped during swapbuffers.
 	 */
 	I915_WRITE(pipestat_reg,
 		   I915_READ(pipestat_reg) | PIPE_VBLANK_INTERRUPT_STATUS);
 	/* Wait for vblank interrupt bit to set */
 	if (wait_for(I915_READ(pipestat_reg) &
 		     PIPE_VBLANK_INTERRUPT_STATUS,
 ))
 		DRM_DEBUG_KMS("vblank wait timed out\n");
+}
 static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 reg = PIPEDSL(pipe);
 	u32 line1, line2;
 	u32 line_mask;
 	if (IS_GEN2(dev))
 		line_mask = DSL_LINEMASK_GEN2;
 	else
 		line_mask = DSL_LINEMASK_GEN3;
 	line1 = I915_READ(reg) & line_mask;
 	mdelay(5);
 	line2 = I915_READ(reg) & line_mask;
 	return line1 == line2;
+}
 /*
  * intel_wait_for_pipe_off - wait for pipe to turn off
  * @dev: drm device
  * @pipe: pipe to wait for
+ *
  * After disabling a pipe, we can't wait for vblank in the usual way,
  * spinning on the vblank interrupt status bit, since we won't actually
  * see an interrupt when the pipe is disabled.
+ *
  * On Gen4 and above:
  *   wait for the pipe register state bit to turn off
+ *
  * Otherwise:
  *   wait for the display line value to settle (it usually
  *   ends up stopping at the start of the next frame).
+ *
  */
 void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
 								      pipe);
 	if (INTEL_INFO(dev)->gen >= 4) {
 		int reg = PIPECONF(cpu_transcoder);
 		/* Wait for the Pipe State to go off */
 		if (wait_for((I915_READ(reg) & I965_PIPECONF_ACTIVE) == 0,
 ))
 			WARN(1, "pipe_off wait timed out\n");
 	} else {
 		/* Wait for the display line to settle */
 		if (wait_for(pipe_dsl_stopped(dev, pipe), 100))
 			WARN(1, "pipe_off wait timed out\n");
+	}
+}
 /*
  * ibx_digital_port_connected - is the specified port connected?
  * @dev_priv: i915 private structure
  * @port: the port to test
+ *
  * Returns true if @port is connected, false otherwise.
  */
 bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
 				struct intel_digital_port *port)
+{
 	u32 bit;
 	if (HAS_PCH_IBX(dev_priv->dev)) {
-		switch(port->port) {
+		switch (port->port) {
 		case PORT_B:
 			bit = SDE_PORTB_HOTPLUG;
 			break;
 		case PORT_C:
 			bit = SDE_PORTC_HOTPLUG;
 			break;
 		case PORT_D:
 			bit = SDE_PORTD_HOTPLUG;
 			break;
 		default:
 			return true;
+		}
 	} else {
-		switch(port->port) {
+		switch (port->port) {
 		case PORT_B:
 			bit = SDE_PORTB_HOTPLUG_CPT;
 			break;
 		case PORT_C:
 			bit = SDE_PORTC_HOTPLUG_CPT;
 			break;
 		case PORT_D:
 			bit = SDE_PORTD_HOTPLUG_CPT;
 			break;
 		default:
 			return true;
+		}
+	}
 	return I915_READ(SDEISR) & bit;
+}
 static const char *state_string(bool enabled)
+{
 	return enabled ? "on" : "off";
+}
 /* Only for pre-ILK configs */
 void assert_pll(struct drm_i915_private *dev_priv,
 		       enum pipe pipe, bool state)
+{
 	int reg;
 	u32 val;
 	bool cur_state;
 	reg = DPLL(pipe);
 	val = I915_READ(reg);
 	cur_state = !!(val & DPLL_VCO_ENABLE);
 	WARN(cur_state != state,
 	     "PLL state assertion failure (expected %s, current %s)\n",
 	     state_string(state), state_string(cur_state));
+}
 /* XXX: the dsi pll is shared between MIPI DSI ports */
 static void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state)
+{
 	u32 val;
 	bool cur_state;
 	mutex_lock(&dev_priv->dpio_lock);
 	val = vlv_cck_read(dev_priv, CCK_REG_DSI_PLL_CONTROL);
 	mutex_unlock(&dev_priv->dpio_lock);
 	cur_state = val & DSI_PLL_VCO_EN;
 	WARN(cur_state != state,
 	     "DSI PLL state assertion failure (expected %s, current %s)\n",
 	     state_string(state), state_string(cur_state));
+}
 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
 struct intel_shared_dpll *
 intel_crtc_to_shared_dpll(struct intel_crtc *crtc)
+{
 	struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
 	if (crtc->config.shared_dpll < 0)
 		return NULL;
 	return &dev_priv->shared_dplls[crtc->config.shared_dpll];
+}
 /* For ILK+ */
 void assert_shared_dpll(struct drm_i915_private *dev_priv,
 			       struct intel_shared_dpll *pll,
 			   bool state)
+{
 	bool cur_state;
 	struct intel_dpll_hw_state hw_state;
-	if (HAS_PCH_LPT(dev_priv->dev)) {
-		DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n");
-		return;
-	}
 	if (WARN (!pll,
 		  "asserting DPLL %s with no DPLL\n", state_string(state)))
 		return;
 	cur_state = pll->get_hw_state(dev_priv, pll, &hw_state);
 	WARN(cur_state != state,
 	     "%s assertion failure (expected %s, current %s)\n",
 	     pll->name, state_string(state), state_string(cur_state));
+}
 static void assert_fdi_tx(struct drm_i915_private *dev_priv,
 			  enum pipe pipe, bool state)
+{
 	int reg;
 	u32 val;
 	bool cur_state;
 	enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
 								      pipe);
 	if (HAS_DDI(dev_priv->dev)) {
 		/* DDI does not have a specific FDI_TX register */
 		reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
 		val = I915_READ(reg);
 		cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
 	} else {
 	reg = FDI_TX_CTL(pipe);
 	val = I915_READ(reg);
 	cur_state = !!(val & FDI_TX_ENABLE);
+	}
 	WARN(cur_state != state,
 	     "FDI TX state assertion failure (expected %s, current %s)\n",
 	     state_string(state), state_string(cur_state));
+}
 #define assert_fdi_tx_enabled(d, p) assert_fdi_tx(d, p, true)
 #define assert_fdi_tx_disabled(d, p) assert_fdi_tx(d, p, false)
 static void assert_fdi_rx(struct drm_i915_private *dev_priv,
 			  enum pipe pipe, bool state)
+{
 	int reg;
 	u32 val;
 	bool cur_state;
 	reg = FDI_RX_CTL(pipe);
 	val = I915_READ(reg);
 	cur_state = !!(val & FDI_RX_ENABLE);
 	WARN(cur_state != state,
 	     "FDI RX state assertion failure (expected %s, current %s)\n",
 	     state_string(state), state_string(cur_state));
+}
 #define assert_fdi_rx_enabled(d, p) assert_fdi_rx(d, p, true)
 #define assert_fdi_rx_disabled(d, p) assert_fdi_rx(d, p, false)
 static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
 				      enum pipe pipe)
+{
 	int reg;
 	u32 val;
 	/* ILK FDI PLL is always enabled */
-	if (dev_priv->info->gen == 5)
+	if (INTEL_INFO(dev_priv->dev)->gen == 5)
 		return;
 	/* On Haswell, DDI ports are responsible for the FDI PLL setup */
 	if (HAS_DDI(dev_priv->dev))
 		return;
 	reg = FDI_TX_CTL(pipe);
 	val = I915_READ(reg);
 	WARN(!(val & FDI_TX_PLL_ENABLE), "FDI TX PLL assertion failure, should be active but is disabled\n");
+}
 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
 		       enum pipe pipe, bool state)
+{
 	int reg;
 	u32 val;
 	bool cur_state;
 	reg = FDI_RX_CTL(pipe);
 	val = I915_READ(reg);
 	cur_state = !!(val & FDI_RX_PLL_ENABLE);
 	WARN(cur_state != state,
 	     "FDI RX PLL assertion failure (expected %s, current %s)\n",
 	     state_string(state), state_string(cur_state));
+}
 static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
 				  enum pipe pipe)
+{
 	int pp_reg, lvds_reg;
 	u32 val;
 	enum pipe panel_pipe = PIPE_A;
 	bool locked = true;
 	if (HAS_PCH_SPLIT(dev_priv->dev)) {
 		pp_reg = PCH_PP_CONTROL;
 		lvds_reg = PCH_LVDS;
 	} else {
 		pp_reg = PP_CONTROL;
 		lvds_reg = LVDS;
+	}
 	val = I915_READ(pp_reg);
 	if (!(val & PANEL_POWER_ON) ||
 	    ((val & PANEL_UNLOCK_REGS) == PANEL_UNLOCK_REGS))
 		locked = false;
 	if (I915_READ(lvds_reg) & LVDS_PIPEB_SELECT)
 		panel_pipe = PIPE_B;
 	WARN(panel_pipe == pipe && locked,
 	     "panel assertion failure, pipe %c regs locked\n",
 	     pipe_name(pipe));
+}
 static void assert_cursor(struct drm_i915_private *dev_priv,
 			  enum pipe pipe, bool state)
+{
 	struct drm_device *dev = dev_priv->dev;
 	bool cur_state;
-	if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
-		cur_state = I915_READ(CURCNTR_IVB(pipe)) & CURSOR_MODE;
-	else if (IS_845G(dev) || IS_I865G(dev))
+	if (IS_845G(dev) || IS_I865G(dev))
 		cur_state = I915_READ(_CURACNTR) & CURSOR_ENABLE;
 	else
 		cur_state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
 	WARN(cur_state != state,
 	     "cursor on pipe %c assertion failure (expected %s, current %s)\n",
 	     pipe_name(pipe), state_string(state), state_string(cur_state));
+}
 #define assert_cursor_enabled(d, p) assert_cursor(d, p, true)
 #define assert_cursor_disabled(d, p) assert_cursor(d, p, false)
 void assert_pipe(struct drm_i915_private *dev_priv,
 			enum pipe pipe, bool state)
+{
 	int reg;
 	u32 val;
 	bool cur_state;
 	enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
 								      pipe);
 	/* if we need the pipe A quirk it must be always on */
 	if (pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
 		state = true;
-	if (!intel_display_power_enabled(dev_priv->dev,
+	if (!intel_display_power_enabled(dev_priv,
 				POWER_DOMAIN_TRANSCODER(cpu_transcoder))) {
 		cur_state = false;
 	} else {
 	reg = PIPECONF(cpu_transcoder);
 	val = I915_READ(reg);
 	cur_state = !!(val & PIPECONF_ENABLE);
+	}
 	WARN(cur_state != state,
 	     "pipe %c assertion failure (expected %s, current %s)\n",
 	     pipe_name(pipe), state_string(state), state_string(cur_state));
+}
 static void assert_plane(struct drm_i915_private *dev_priv,
 			 enum plane plane, bool state)
+{
 	int reg;
 	u32 val;
 	bool cur_state;
 	reg = DSPCNTR(plane);
 	val = I915_READ(reg);
 	cur_state = !!(val & DISPLAY_PLANE_ENABLE);
 	WARN(cur_state != state,
 	     "plane %c assertion failure (expected %s, current %s)\n",
 	     plane_name(plane), state_string(state), state_string(cur_state));
+}
 #define assert_plane_enabled(d, p) assert_plane(d, p, true)
 #define assert_plane_disabled(d, p) assert_plane(d, p, false)
 static void assert_planes_disabled(struct drm_i915_private *dev_priv,
 				   enum pipe pipe)
+{
 	struct drm_device *dev = dev_priv->dev;
 	int reg, i;
 	u32 val;
 	int cur_pipe;
 	/* Primary planes are fixed to pipes on gen4+ */
 	if (INTEL_INFO(dev)->gen >= 4) {
 		reg = DSPCNTR(pipe);
 		val = I915_READ(reg);
-		WARN((val & DISPLAY_PLANE_ENABLE),
+		WARN(val & DISPLAY_PLANE_ENABLE,
 		     "plane %c assertion failure, should be disabled but not\n",
 		     plane_name(pipe));
 		return;
+	}
 	/* Need to check both planes against the pipe */
 	for_each_pipe(i) {
 		reg = DSPCNTR(i);
 		val = I915_READ(reg);
 		cur_pipe = (val & DISPPLANE_SEL_PIPE_MASK) >>
 			DISPPLANE_SEL_PIPE_SHIFT;
 		WARN((val & DISPLAY_PLANE_ENABLE) && pipe == cur_pipe,
 		     "plane %c assertion failure, should be off on pipe %c but is still active\n",
 		     plane_name(i), pipe_name(pipe));
+	}
+}
 static void assert_sprites_disabled(struct drm_i915_private *dev_priv,
 				    enum pipe pipe)
+{
 	struct drm_device *dev = dev_priv->dev;
-	int reg, i;
+	int reg, sprite;
 	u32 val;
 	if (IS_VALLEYVIEW(dev)) {
-	for (i = 0; i < dev_priv->num_plane; i++) {
+		for_each_sprite(pipe, sprite) {
-		reg = SPCNTR(pipe, i);
+			reg = SPCNTR(pipe, sprite);
 		val = I915_READ(reg);
-		WARN((val & SP_ENABLE),
+			WARN(val & SP_ENABLE,
 			     "sprite %c assertion failure, should be off on pipe %c but is still active\n",
-			     sprite_name(pipe, i), pipe_name(pipe));
+			     sprite_name(pipe, sprite), pipe_name(pipe));
+		}
 	} else if (INTEL_INFO(dev)->gen >= 7) {
 		reg = SPRCTL(pipe);
 		val = I915_READ(reg);
-		WARN((val & SPRITE_ENABLE),
+		WARN(val & SPRITE_ENABLE,
 		     "sprite %c assertion failure, should be off on pipe %c but is still active\n",
 		     plane_name(pipe), pipe_name(pipe));
 	} else if (INTEL_INFO(dev)->gen >= 5) {
 		reg = DVSCNTR(pipe);
 		val = I915_READ(reg);
-		WARN((val & DVS_ENABLE),
+		WARN(val & DVS_ENABLE,
 		     "sprite %c assertion failure, should be off on pipe %c but is still active\n",
 		     plane_name(pipe), pipe_name(pipe));
+	}
+}
 static void ibx_assert_pch_refclk_enabled(struct drm_i915_private *dev_priv)
+{
 	u32 val;
 	bool enabled;
 	WARN_ON(!(HAS_PCH_IBX(dev_priv->dev) || HAS_PCH_CPT(dev_priv->dev)));
 	val = I915_READ(PCH_DREF_CONTROL);
 	enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK |
 			    DREF_SUPERSPREAD_SOURCE_MASK));
 	WARN(!enabled, "PCH refclk assertion failure, should be active but is disabled\n");
+}
 static void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
 				       enum pipe pipe)
+{
 	int reg;
 	u32 val;
 	bool enabled;
 	reg = PCH_TRANSCONF(pipe);
 	val = I915_READ(reg);
 	enabled = !!(val & TRANS_ENABLE);
 	WARN(enabled,
 	     "transcoder assertion failed, should be off on pipe %c but is still active\n",
 	     pipe_name(pipe));
+}
 static bool dp_pipe_enabled(struct drm_i915_private *dev_priv,
 			    enum pipe pipe, u32 port_sel, u32 val)
+{
 	if ((val & DP_PORT_EN) == 0)
 		return false;
 	if (HAS_PCH_CPT(dev_priv->dev)) {
 		u32	trans_dp_ctl_reg = TRANS_DP_CTL(pipe);
 		u32	trans_dp_ctl = I915_READ(trans_dp_ctl_reg);
 		if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel)
 			return false;
+	} else if (IS_CHERRYVIEW(dev_priv->dev)) {
+		if ((val & DP_PIPE_MASK_CHV) != DP_PIPE_SELECT_CHV(pipe))
+			return false;
 	} else {
 		if ((val & DP_PIPE_MASK) != (pipe << 30))
 			return false;
+	}
 	return true;
+}
 static bool hdmi_pipe_enabled(struct drm_i915_private *dev_priv,
 			      enum pipe pipe, u32 val)
+{
 	if ((val & SDVO_ENABLE) == 0)
 		return false;
 	if (HAS_PCH_CPT(dev_priv->dev)) {
 		if ((val & SDVO_PIPE_SEL_MASK_CPT) != SDVO_PIPE_SEL_CPT(pipe))
 			return false;
+	} else if (IS_CHERRYVIEW(dev_priv->dev)) {
+		if ((val & SDVO_PIPE_SEL_MASK_CHV) != SDVO_PIPE_SEL_CHV(pipe))
+			return false;
 	} else {
 		if ((val & SDVO_PIPE_SEL_MASK) != SDVO_PIPE_SEL(pipe))
 			return false;
+	}
 	return true;
+}
 static bool lvds_pipe_enabled(struct drm_i915_private *dev_priv,
 			      enum pipe pipe, u32 val)
+{
 	if ((val & LVDS_PORT_EN) == 0)
 		return false;
 	if (HAS_PCH_CPT(dev_priv->dev)) {
 		if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
 			return false;
 	} else {
 		if ((val & LVDS_PIPE_MASK) != LVDS_PIPE(pipe))
 			return false;
+	}
 	return true;
+}
 static bool adpa_pipe_enabled(struct drm_i915_private *dev_priv,
 			      enum pipe pipe, u32 val)
+{
 	if ((val & ADPA_DAC_ENABLE) == 0)
 		return false;
 	if (HAS_PCH_CPT(dev_priv->dev)) {
 		if ((val & PORT_TRANS_SEL_MASK) != PORT_TRANS_SEL_CPT(pipe))
 			return false;
 	} else {
 		if ((val & ADPA_PIPE_SELECT_MASK) != ADPA_PIPE_SELECT(pipe))
 			return false;
+	}
 	return true;
+}
 static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv,
 				   enum pipe pipe, int reg, u32 port_sel)
+{
 	u32 val = I915_READ(reg);
 	WARN(dp_pipe_enabled(dev_priv, pipe, port_sel, val),
 	     "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n",
 	     reg, pipe_name(pipe));
 	WARN(HAS_PCH_IBX(dev_priv->dev) && (val & DP_PORT_EN) == 0
 	     && (val & DP_PIPEB_SELECT),
 	     "IBX PCH dp port still using transcoder B\n");
+}
 static void assert_pch_hdmi_disabled(struct drm_i915_private *dev_priv,
 				     enum pipe pipe, int reg)
+{
 	u32 val = I915_READ(reg);
 	WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
 	     "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
 	     reg, pipe_name(pipe));
 	WARN(HAS_PCH_IBX(dev_priv->dev) && (val & SDVO_ENABLE) == 0
 	     && (val & SDVO_PIPE_B_SELECT),
 	     "IBX PCH hdmi port still using transcoder B\n");
+}
 static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv,
 				      enum pipe pipe)
+{
 	int reg;
 	u32 val;
 	assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B);
 	assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C);
 	assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D);
 	reg = PCH_ADPA;
 	val = I915_READ(reg);
 	WARN(adpa_pipe_enabled(dev_priv, pipe, val),
 	     "PCH VGA enabled on transcoder %c, should be disabled\n",
 	     pipe_name(pipe));
 	reg = PCH_LVDS;
 	val = I915_READ(reg);
 	WARN(lvds_pipe_enabled(dev_priv, pipe, val),
 	     "PCH LVDS enabled on transcoder %c, should be disabled\n",
 	     pipe_name(pipe));
 	assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIB);
 	assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMIC);
 	assert_pch_hdmi_disabled(dev_priv, pipe, PCH_HDMID);
+}
 static void intel_init_dpio(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	if (!IS_VALLEYVIEW(dev))
 		return;
+	/*
+	 * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C),
+	 * CHV x1 PHY (DP/HDMI D)
+	 * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C)
+	 */
+	if (IS_CHERRYVIEW(dev)) {
+		DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO_2;
+		DPIO_PHY_IOSF_PORT(DPIO_PHY1) = IOSF_PORT_DPIO;
 	} else {
 	DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO;
+	}
+}
 static void intel_reset_dpio(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
+	if (IS_CHERRYVIEW(dev)) {
-	if (!IS_VALLEYVIEW(dev))
+		enum dpio_phy phy;
-		return;
+		u32 val;
-	/*
-	 * Enable the CRI clock source so we can get at the display and the
-	 * reference clock for VGA hotplug / manual detection.
+		for (phy = DPIO_PHY0; phy < I915_NUM_PHYS_VLV; phy++) {
-	 */
+			/* Poll for phypwrgood signal */
-	I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) |
+			if (wait_for(I915_READ(DISPLAY_PHY_STATUS) &
-		   DPLL_REFA_CLK_ENABLE_VLV |
+						PHY_POWERGOOD(phy), 1))
-		   DPLL_INTEGRATED_CRI_CLK_VLV);
+				DRM_ERROR("Display PHY %d is not power up\n", phy);
-	/*
-	 * From VLV2A0_DP_eDP_DPIO_driver_vbios_notes_10.docx -
-	 *  6.	De-assert cmn_reset/side_reset. Same as VLV X0.
 	 *   a.	GUnit 0x2110 bit[0] set to 1 (def 0)
-	 *   b.	The other bits such as sfr settings / modesel may all be set
+	/*
-	 *      to 0.
+			 * Deassert common lane reset for PHY.
+			 *
-	 *
+			 * This should only be done on init and resume from S3
-	 * This should only be done on init and resume from S3 with both
+			 * with both PLLs disabled, or we risk losing DPIO and
+			 * PLL synchronization.
+			 */
+			val = I915_READ(DISPLAY_PHY_CONTROL);
+			I915_WRITE(DISPLAY_PHY_CONTROL,
-	 * PLLs disabled, or we risk losing DPIO and PLL synchronization.
+				PHY_COM_LANE_RESET_DEASSERT(phy, val));
 	 */
 	I915_WRITE(DPIO_CTL, I915_READ(DPIO_CTL) | DPIO_CMNRST);
+}
 static void vlv_enable_pll(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int reg = DPLL(crtc->pipe);
 	u32 dpll = crtc->config.dpll_hw_state.dpll;
 	assert_pipe_disabled(dev_priv, crtc->pipe);
     /* No really, not for ILK+ */
 	BUG_ON(!IS_VALLEYVIEW(dev_priv->dev));
     /* PLL is protected by panel, make sure we can write it */
     if (IS_MOBILE(dev_priv->dev) && !IS_I830(dev_priv->dev))
 		assert_panel_unlocked(dev_priv, crtc->pipe);
 	I915_WRITE(reg, dpll);
 	POSTING_READ(reg);
 	udelay(150);
 	if (wait_for(((I915_READ(reg) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
 		DRM_ERROR("DPLL %d failed to lock\n", crtc->pipe);
 	I915_WRITE(DPLL_MD(crtc->pipe), crtc->config.dpll_hw_state.dpll_md);
 	POSTING_READ(DPLL_MD(crtc->pipe));
 	/* We do this three times for luck */
 	I915_WRITE(reg, dpll);
 	POSTING_READ(reg);
 	udelay(150); /* wait for warmup */
 	I915_WRITE(reg, dpll);
 	POSTING_READ(reg);
 	udelay(150); /* wait for warmup */
 	I915_WRITE(reg, dpll);
 	POSTING_READ(reg);
 	udelay(150); /* wait for warmup */
+}
+static void chv_enable_pll(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int pipe = crtc->pipe;
+	enum dpio_channel port = vlv_pipe_to_channel(pipe);
+	u32 tmp;
+	assert_pipe_disabled(dev_priv, crtc->pipe);
+	BUG_ON(!IS_CHERRYVIEW(dev_priv->dev));
+	mutex_lock(&dev_priv->dpio_lock);
+	/* Enable back the 10bit clock to display controller */
+	tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port));
+	tmp |= DPIO_DCLKP_EN;
+	vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), tmp);
+	/*
+	 * Need to wait > 100ns between dclkp clock enable bit and PLL enable.
+	 */
+	udelay(1);
+	/* Enable PLL */
+	I915_WRITE(DPLL(pipe), crtc->config.dpll_hw_state.dpll);
+	/* Check PLL is locked */
+	if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
+		DRM_ERROR("PLL %d failed to lock\n", pipe);
+	/* not sure when this should be written */
+	I915_WRITE(DPLL_MD(pipe), crtc->config.dpll_hw_state.dpll_md);
+	POSTING_READ(DPLL_MD(pipe));
+	mutex_unlock(&dev_priv->dpio_lock);
+}
 static void i9xx_enable_pll(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int reg = DPLL(crtc->pipe);
 	u32 dpll = crtc->config.dpll_hw_state.dpll;
 	assert_pipe_disabled(dev_priv, crtc->pipe);
 	/* No really, not for ILK+ */
-	BUG_ON(dev_priv->info->gen >= 5);
+	BUG_ON(INTEL_INFO(dev)->gen >= 5);
 	/* PLL is protected by panel, make sure we can write it */
 	if (IS_MOBILE(dev) && !IS_I830(dev))
 		assert_panel_unlocked(dev_priv, crtc->pipe);
 	I915_WRITE(reg, dpll);
 	/* Wait for the clocks to stabilize. */
 	POSTING_READ(reg);
 	udelay(150);
 	if (INTEL_INFO(dev)->gen >= 4) {
 		I915_WRITE(DPLL_MD(crtc->pipe),
 			   crtc->config.dpll_hw_state.dpll_md);
 	} else {
 		/* The pixel multiplier can only be updated once the
 		 * DPLL is enabled and the clocks are stable.
+		 *
 		 * So write it again.
 		 */
 		I915_WRITE(reg, dpll);
+	}
     /* We do this three times for luck */
 	I915_WRITE(reg, dpll);
     POSTING_READ(reg);
     udelay(150); /* wait for warmup */
 	I915_WRITE(reg, dpll);
     POSTING_READ(reg);
     udelay(150); /* wait for warmup */
 	I915_WRITE(reg, dpll);
     POSTING_READ(reg);
     udelay(150); /* wait for warmup */
+}
 /**
  * i9xx_disable_pll - disable a PLL
  * @dev_priv: i915 private structure
  * @pipe: pipe PLL to disable
+ *
  * Disable the PLL for @pipe, making sure the pipe is off first.
+ *
  * Note!  This is for pre-ILK only.
  */
 static void i9xx_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
+{
 	/* Don't disable pipe A or pipe A PLLs if needed */
 	if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
 		return;
 	/* Make sure the pipe isn't still relying on us */
 	assert_pipe_disabled(dev_priv, pipe);
 	I915_WRITE(DPLL(pipe), 0);
 	POSTING_READ(DPLL(pipe));
+}
 static void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
+{
 	u32 val = 0;
 	/* Make sure the pipe isn't still relying on us */
 	assert_pipe_disabled(dev_priv, pipe);
 	/*
 	 * Leave integrated clock source and reference clock enabled for pipe B.
 	 * The latter is needed for VGA hotplug / manual detection.
 	 */
 	if (pipe == PIPE_B)
 		val = DPLL_INTEGRATED_CRI_CLK_VLV | DPLL_REFA_CLK_ENABLE_VLV;
 	I915_WRITE(DPLL(pipe), val);
 	POSTING_READ(DPLL(pipe));
+}
+static void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
+{
+	enum dpio_channel port = vlv_pipe_to_channel(pipe);
+	u32 val;
+	/* Make sure the pipe isn't still relying on us */
+	assert_pipe_disabled(dev_priv, pipe);
+	/* Set PLL en = 0 */
+	val = DPLL_SSC_REF_CLOCK_CHV;
+	if (pipe != PIPE_A)
+		val |= DPLL_INTEGRATED_CRI_CLK_VLV;
+	I915_WRITE(DPLL(pipe), val);
+	POSTING_READ(DPLL(pipe));
+	mutex_lock(&dev_priv->dpio_lock);
+	/* Disable 10bit clock to display controller */
+	val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port));
+	val &= ~DPIO_DCLKP_EN;
+	vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val);
+	/* disable left/right clock distribution */
+	if (pipe != PIPE_B) {
+		val = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW5_CH0);
+		val &= ~(CHV_BUFLEFTENA1_MASK | CHV_BUFRIGHTENA1_MASK);
+		vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW5_CH0, val);
+	} else {
+		val = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW1_CH1);
+		val &= ~(CHV_BUFLEFTENA2_MASK | CHV_BUFRIGHTENA2_MASK);
+		vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW1_CH1, val);
+	}
+	mutex_unlock(&dev_priv->dpio_lock);
+}
 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
 		struct intel_digital_port *dport)
+{
 	u32 port_mask;
+	int dpll_reg;
 	switch (dport->port) {
 	case PORT_B:
 		port_mask = DPLL_PORTB_READY_MASK;
+		dpll_reg = DPLL(0);
 		break;
 	case PORT_C:
 		port_mask = DPLL_PORTC_READY_MASK;
+		dpll_reg = DPLL(0);
+		break;
+	case PORT_D:
+		port_mask = DPLL_PORTD_READY_MASK;
+		dpll_reg = DPIO_PHY_STATUS;
 		break;
 	default:
 		BUG();
+	}
-	if (wait_for((I915_READ(DPLL(0)) & port_mask) == 0, 1000))
+	if (wait_for((I915_READ(dpll_reg) & port_mask) == 0, 1000))
 		WARN(1, "timed out waiting for port %c ready: 0x%08x\n",
+		     port_name(dport->port), I915_READ(dpll_reg));
+}
+static void intel_prepare_shared_dpll(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
+	if (WARN_ON(pll == NULL))
+		return;
+	WARN_ON(!pll->refcount);
+	if (pll->active == 0) {
+		DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
+		WARN_ON(pll->on);
+		assert_shared_dpll_disabled(dev_priv, pll);
+		pll->mode_set(dev_priv, pll);
 		     port_name(dport->port), I915_READ(DPLL(0)));
+}
 /**
- * ironlake_enable_shared_dpll - enable PCH PLL
+ * intel_enable_shared_dpll - enable PCH PLL
  * @dev_priv: i915 private structure
  * @pipe: pipe PLL to enable
+ *
  * The PCH PLL needs to be enabled before the PCH transcoder, since it
  * drives the transcoder clock.
  */
-static void ironlake_enable_shared_dpll(struct intel_crtc *crtc)
+static void intel_enable_shared_dpll(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
-	struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
-	/* PCH PLLs only available on ILK, SNB and IVB */
 	BUG_ON(dev_priv->info->gen < 5);
 	if (WARN_ON(pll == NULL))
 		return;
 	if (WARN_ON(pll->refcount == 0))
 		return;
 	DRM_DEBUG_KMS("enable %s (active %d, on? %d)for crtc %d\n",
 		      pll->name, pll->active, pll->on,
 		      crtc->base.base.id);
 	if (pll->active++) {
 		WARN_ON(!pll->on);
 		assert_shared_dpll_enabled(dev_priv, pll);
 		return;
+	}
 	WARN_ON(pll->on);
+	intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS);
 	DRM_DEBUG_KMS("enabling %s\n", pll->name);
 	pll->enable(dev_priv, pll);
 	pll->on = true;
+}
-static void intel_disable_shared_dpll(struct intel_crtc *crtc)
+void intel_disable_shared_dpll(struct intel_crtc *crtc)
+{
-{
+	struct drm_device *dev = crtc->base.dev;
-	struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
 	/* PCH only available on ILK+ */
-	BUG_ON(dev_priv->info->gen < 5);
+	BUG_ON(INTEL_INFO(dev)->gen < 5);
 	if (WARN_ON(pll == NULL))
 	       return;
 	if (WARN_ON(pll->refcount == 0))
 		return;
 	DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
 		      pll->name, pll->active, pll->on,
 		      crtc->base.base.id);
 	if (WARN_ON(pll->active == 0)) {
 		assert_shared_dpll_disabled(dev_priv, pll);
 		return;
+	}
 	assert_shared_dpll_enabled(dev_priv, pll);
 	WARN_ON(!pll->on);
 	if (--pll->active)
 		return;
 	DRM_DEBUG_KMS("disabling %s\n", pll->name);
 	pll->disable(dev_priv, pll);
 	pll->on = false;
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS);
+}
 static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
 				    enum pipe pipe)
+{
 	struct drm_device *dev = dev_priv->dev;
 	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	uint32_t reg, val, pipeconf_val;
 	/* PCH only available on ILK+ */
-	BUG_ON(dev_priv->info->gen < 5);
+	BUG_ON(INTEL_INFO(dev)->gen < 5);
 	/* Make sure PCH DPLL is enabled */
 	assert_shared_dpll_enabled(dev_priv,
 				   intel_crtc_to_shared_dpll(intel_crtc));
 	/* FDI must be feeding us bits for PCH ports */
 	assert_fdi_tx_enabled(dev_priv, pipe);
 	assert_fdi_rx_enabled(dev_priv, pipe);
 	if (HAS_PCH_CPT(dev)) {
 		/* Workaround: Set the timing override bit before enabling the
 		 * pch transcoder. */
 		reg = TRANS_CHICKEN2(pipe);
 		val = I915_READ(reg);
 		val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
 		I915_WRITE(reg, val);
+	}
 	reg = PCH_TRANSCONF(pipe);
 	val = I915_READ(reg);
 	pipeconf_val = I915_READ(PIPECONF(pipe));
 	if (HAS_PCH_IBX(dev_priv->dev)) {
 		/*
 		 * make the BPC in transcoder be consistent with
 		 * that in pipeconf reg.
 		 */
 		val &= ~PIPECONF_BPC_MASK;
 		val |= pipeconf_val & PIPECONF_BPC_MASK;
+	}
 	val &= ~TRANS_INTERLACE_MASK;
 	if ((pipeconf_val & PIPECONF_INTERLACE_MASK) == PIPECONF_INTERLACED_ILK)
 		if (HAS_PCH_IBX(dev_priv->dev) &&
 		    intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO))
 			val |= TRANS_LEGACY_INTERLACED_ILK;
 		else
 			val |= TRANS_INTERLACED;
 	else
 		val |= TRANS_PROGRESSIVE;
 	I915_WRITE(reg, val | TRANS_ENABLE);
 	if (wait_for(I915_READ(reg) & TRANS_STATE_ENABLE, 100))
 		DRM_ERROR("failed to enable transcoder %c\n", pipe_name(pipe));
+}
 static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
 				      enum transcoder cpu_transcoder)
+{
 	u32 val, pipeconf_val;
 	/* PCH only available on ILK+ */
-	BUG_ON(dev_priv->info->gen < 5);
+	BUG_ON(INTEL_INFO(dev_priv->dev)->gen < 5);
 	/* FDI must be feeding us bits for PCH ports */
 	assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
 	assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
 	/* Workaround: set timing override bit. */
 	val = I915_READ(_TRANSA_CHICKEN2);
 	val |= TRANS_CHICKEN2_TIMING_OVERRIDE;
 	I915_WRITE(_TRANSA_CHICKEN2, val);
 	val = TRANS_ENABLE;
 	pipeconf_val = I915_READ(PIPECONF(cpu_transcoder));
 	if ((pipeconf_val & PIPECONF_INTERLACE_MASK_HSW) ==
 	    PIPECONF_INTERLACED_ILK)
 		val |= TRANS_INTERLACED;
 	else
 		val |= TRANS_PROGRESSIVE;
 	I915_WRITE(LPT_TRANSCONF, val);
 	if (wait_for(I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE, 100))
 		DRM_ERROR("Failed to enable PCH transcoder\n");
+}
 static void ironlake_disable_pch_transcoder(struct drm_i915_private *dev_priv,
 				     enum pipe pipe)
+{
 	struct drm_device *dev = dev_priv->dev;
 	uint32_t reg, val;
 	/* FDI relies on the transcoder */
 	assert_fdi_tx_disabled(dev_priv, pipe);
 	assert_fdi_rx_disabled(dev_priv, pipe);
 	/* Ports must be off as well */
 	assert_pch_ports_disabled(dev_priv, pipe);
 	reg = PCH_TRANSCONF(pipe);
 	val = I915_READ(reg);
 	val &= ~TRANS_ENABLE;
 	I915_WRITE(reg, val);
 	/* wait for PCH transcoder off, transcoder state */
 	if (wait_for((I915_READ(reg) & TRANS_STATE_ENABLE) == 0, 50))
 		DRM_ERROR("failed to disable transcoder %c\n", pipe_name(pipe));
 	if (!HAS_PCH_IBX(dev)) {
 		/* Workaround: Clear the timing override chicken bit again. */
 		reg = TRANS_CHICKEN2(pipe);
 		val = I915_READ(reg);
 		val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
 		I915_WRITE(reg, val);
+	}
+}
 static void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
+{
 	u32 val;
 	val = I915_READ(LPT_TRANSCONF);
 	val &= ~TRANS_ENABLE;
 	I915_WRITE(LPT_TRANSCONF, val);
 	/* wait for PCH transcoder off, transcoder state */
 	if (wait_for((I915_READ(LPT_TRANSCONF) & TRANS_STATE_ENABLE) == 0, 50))
 		DRM_ERROR("Failed to disable PCH transcoder\n");
 	/* Workaround: clear timing override bit. */
 	val = I915_READ(_TRANSA_CHICKEN2);
 	val &= ~TRANS_CHICKEN2_TIMING_OVERRIDE;
 	I915_WRITE(_TRANSA_CHICKEN2, val);
+}
 /**
  * intel_enable_pipe - enable a pipe, asserting requirements
- * @dev_priv: i915 private structure
- * @pipe: pipe to enable
+ * @crtc: crtc responsible for the pipe
- * @pch_port: on ILK+, is this pipe driving a PCH port or not
+ *
- * Enable @pipe, making sure that various hardware specific requirements
+ * Enable @crtc's pipe, making sure that various hardware specific requirements
  * are met, if applicable, e.g. PLL enabled, LVDS pairs enabled, etc.
- *
- * @pipe should be %PIPE_A or %PIPE_B.
- *
- * Will wait until the pipe is actually running (i.e. first vblank) before
- * returning.
  */
-static void intel_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
+static void intel_enable_pipe(struct intel_crtc *crtc)
-			      bool pch_port, bool dsi)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	enum pipe pipe = crtc->pipe;
 	enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
 								      pipe);
 	enum pipe pch_transcoder;
 	int reg;
 	u32 val;
 	assert_planes_disabled(dev_priv, pipe);
 	assert_cursor_disabled(dev_priv, pipe);
 	assert_sprites_disabled(dev_priv, pipe);
 	if (HAS_PCH_LPT(dev_priv->dev))
 		pch_transcoder = TRANSCODER_A;
 	else
 		pch_transcoder = pipe;
 	/*
 	 * A pipe without a PLL won't actually be able to drive bits from
 	 * a plane.  On ILK+ the pipe PLLs are integrated, so we don't
 	 * need the check.
 	 */
 	if (!HAS_PCH_SPLIT(dev_priv->dev))
-		if (dsi)
+		if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DSI))
 			assert_dsi_pll_enabled(dev_priv);
 		else
 		assert_pll_enabled(dev_priv, pipe);
 	else {
-		if (pch_port) {
+		if (crtc->config.has_pch_encoder) {
 			/* if driving the PCH, we need FDI enabled */
 			assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder);
 			assert_fdi_tx_pll_enabled(dev_priv,
 						  (enum pipe) cpu_transcoder);
+		}
 		/* FIXME: assert CPU port conditions for SNB+ */
+	}
 	reg = PIPECONF(cpu_transcoder);
 	val = I915_READ(reg);
-	if (val & PIPECONF_ENABLE)
+	if (val & PIPECONF_ENABLE) {
+		WARN_ON(!(pipe == PIPE_A &&
+			  dev_priv->quirks & QUIRK_PIPEA_FORCE));
 		return;
+	}
 	I915_WRITE(reg, val | PIPECONF_ENABLE);
-	intel_wait_for_vblank(dev_priv->dev, pipe);
+	POSTING_READ(reg);
+}
 /**
  * intel_disable_pipe - disable a pipe, asserting requirements
  * @dev_priv: i915 private structure
  * @pipe: pipe to disable
+ *
  * Disable @pipe, making sure that various hardware specific requirements
  * are met, if applicable, e.g. plane disabled, panel fitter off, etc.
+ *
  * @pipe should be %PIPE_A or %PIPE_B.
+ *
  * Will wait until the pipe has shut down before returning.
  */
 static void intel_disable_pipe(struct drm_i915_private *dev_priv,
 			       enum pipe pipe)
+{
 	enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
 								      pipe);
 	int reg;
 	u32 val;
     /*
 	 * Make sure planes won't keep trying to pump pixels to us,
 	 * or we might hang the display.
 	 */
 	assert_planes_disabled(dev_priv, pipe);
 	assert_cursor_disabled(dev_priv, pipe);
 	assert_sprites_disabled(dev_priv, pipe);
 	/* Don't disable pipe A or pipe A PLLs if needed */
 	if (pipe == PIPE_A && (dev_priv->quirks & QUIRK_PIPEA_FORCE))
 		return;
 	reg = PIPECONF(cpu_transcoder);
 	val = I915_READ(reg);
 	if ((val & PIPECONF_ENABLE) == 0)
 		return;
 	I915_WRITE(reg, val & ~PIPECONF_ENABLE);
 	intel_wait_for_pipe_off(dev_priv->dev, pipe);
+}
 /*
  * Plane regs are double buffered, going from enabled->disabled needs a
  * trigger in order to latch.  The display address reg provides this.
  */
 void intel_flush_primary_plane(struct drm_i915_private *dev_priv,
 				      enum plane plane)
+{
+	struct drm_device *dev = dev_priv->dev;
-	u32 reg = dev_priv->info->gen >= 4 ? DSPSURF(plane) : DSPADDR(plane);
+	u32 reg = INTEL_INFO(dev)->gen >= 4 ? DSPSURF(plane) : DSPADDR(plane);
 	I915_WRITE(reg, I915_READ(reg));
 	POSTING_READ(reg);
+}
 /**
- * intel_enable_primary_plane - enable the primary plane on a given pipe
+ * intel_enable_primary_hw_plane - enable the primary plane on a given pipe
  * @dev_priv: i915 private structure
  * @plane: plane to enable
  * @pipe: pipe being fed
+ *
  * Enable @plane on @pipe, making sure that @pipe is running first.
  */
-static void intel_enable_primary_plane(struct drm_i915_private *dev_priv,
+static void intel_enable_primary_hw_plane(struct drm_i915_private *dev_priv,
 			       enum plane plane, enum pipe pipe)
+{
+	struct drm_device *dev = dev_priv->dev;
 	struct intel_crtc *intel_crtc =
 		to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
 	int reg;
 	u32 val;
 	/* If the pipe isn't enabled, we can't pump pixels and may hang */
 	assert_pipe_enabled(dev_priv, pipe);
+	if (intel_crtc->primary_enabled)
-	WARN(intel_crtc->primary_enabled, "Primary plane already enabled\n");
+		return;
 	intel_crtc->primary_enabled = true;
 	reg = DSPCNTR(plane);
 	val = I915_READ(reg);
-	if (val & DISPLAY_PLANE_ENABLE)
+	WARN_ON(val & DISPLAY_PLANE_ENABLE);
-		return;
 	I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
 	intel_flush_primary_plane(dev_priv, plane);
-	intel_wait_for_vblank(dev_priv->dev, pipe);
+}
 /**
- * intel_disable_primary_plane - disable the primary plane
+ * intel_disable_primary_hw_plane - disable the primary hardware plane
  * @dev_priv: i915 private structure
  * @plane: plane to disable
  * @pipe: pipe consuming the data
+ *
  * Disable @plane; should be an independent operation.
  */
-static void intel_disable_primary_plane(struct drm_i915_private *dev_priv,
+static void intel_disable_primary_hw_plane(struct drm_i915_private *dev_priv,
 				enum plane plane, enum pipe pipe)
+{
 	struct intel_crtc *intel_crtc =
 		to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
 	int reg;
 	u32 val;
+	if (!intel_crtc->primary_enabled)
-	WARN(!intel_crtc->primary_enabled, "Primary plane already disabled\n");
+		return;
 	intel_crtc->primary_enabled = false;
 	reg = DSPCNTR(plane);
 	val = I915_READ(reg);
-	if ((val & DISPLAY_PLANE_ENABLE) == 0)
+	WARN_ON((val & DISPLAY_PLANE_ENABLE) == 0);
-		return;
 	I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
 	intel_flush_primary_plane(dev_priv, plane);
-    intel_wait_for_vblank(dev_priv->dev, pipe);
+}
 static bool need_vtd_wa(struct drm_device *dev)
+{
 #ifdef CONFIG_INTEL_IOMMU
 	if (INTEL_INFO(dev)->gen >= 6 && intel_iommu_gfx_mapped)
 		return true;
 #endif
 	return false;
+}
+static int intel_align_height(struct drm_device *dev, int height, bool tiled)
+{
+	int tile_height;
+	tile_height = tiled ? (IS_GEN2(dev) ? 16 : 8) : 1;
+	return ALIGN(height, tile_height);
+}
 int
 intel_pin_and_fence_fb_obj(struct drm_device *dev,
 			   struct drm_i915_gem_object *obj,
-			   struct intel_ring_buffer *pipelined)
+			   struct intel_engine_cs *pipelined)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 alignment;
 	int ret;
+	WARN_ON(!mutex_is_locked(&dev->struct_mutex));
 	switch (obj->tiling_mode) {
 	case I915_TILING_NONE:
 		if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
 			alignment = 128 * 1024;
 		else if (INTEL_INFO(dev)->gen >= 4)
 			alignment = 4 * 1024;
 		else
 			alignment = 64 * 1024;
 		break;
 	case I915_TILING_X:
 		/* pin() will align the object as required by fence */
 		alignment = 0;
 		break;
 	case I915_TILING_Y:
 		WARN(1, "Y tiled bo slipped through, driver bug!\n");
 		return -EINVAL;
 	default:
 		BUG();
+	}
 	/* Note that the w/a also requires 64 PTE of padding following the
 	 * bo. We currently fill all unused PTE with the shadow page and so
 	 * we should always have valid PTE following the scanout preventing
 	 * the VT-d warning.
 	 */
 	if (need_vtd_wa(dev) && alignment < 256 * 1024)
 		alignment = 256 * 1024;
 	dev_priv->mm.interruptible = false;
 	ret = i915_gem_object_pin_to_display_plane(obj, alignment, pipelined);
 	if (ret)
 		goto err_interruptible;
 	/* Install a fence for tiled scan-out. Pre-i965 always needs a
 	 * fence, whereas 965+ only requires a fence if using
 	 * framebuffer compression.  For simplicity, we always install
 	 * a fence as the cost is not that onerous.
 	 */
 	ret = i915_gem_object_get_fence(obj);
 	if (ret)
 		goto err_unpin;
 	i915_gem_object_pin_fence(obj);
 	dev_priv->mm.interruptible = true;
 	return 0;
 err_unpin:
 	i915_gem_object_unpin_from_display_plane(obj);
 err_interruptible:
 	dev_priv->mm.interruptible = true;
 	return ret;
+}
 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj)
+{
+	WARN_ON(!mutex_is_locked(&obj->base.dev->struct_mutex));
-//	i915_gem_object_unpin_fence(obj);
+	i915_gem_object_unpin_fence(obj);
-//	i915_gem_object_unpin(obj);
+//	i915_gem_object_unpin_from_display_plane(obj);
+}
 /* Computes the linear offset to the base tile and adjusts x, y. bytes per pixel
  * is assumed to be a power-of-two. */
 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
 					     unsigned int tiling_mode,
 					     unsigned int cpp,
 							unsigned int pitch)
+{
 	if (tiling_mode != I915_TILING_NONE) {
 		unsigned int tile_rows, tiles;
 	tile_rows = *y / 8;
 	*y %= 8;
 		tiles = *x / (512/cpp);
 		*x %= 512/cpp;
 	return tile_rows * pitch * 8 + tiles * 4096;
 	} else {
 		unsigned int offset;
 		offset = *y * pitch + *x * cpp;
 		*y = 0;
 		*x = (offset & 4095) / cpp;
 		return offset & -4096;
+	}
+}
+int intel_format_to_fourcc(int format)
+{
+	switch (format) {
+	case DISPPLANE_8BPP:
+		return DRM_FORMAT_C8;
+	case DISPPLANE_BGRX555:
+		return DRM_FORMAT_XRGB1555;
+	case DISPPLANE_BGRX565:
+		return DRM_FORMAT_RGB565;
+	default:
+	case DISPPLANE_BGRX888:
+		return DRM_FORMAT_XRGB8888;
+	case DISPPLANE_RGBX888:
+		return DRM_FORMAT_XBGR8888;
+	case DISPPLANE_BGRX101010:
+		return DRM_FORMAT_XRGB2101010;
+	case DISPPLANE_RGBX101010:
+		return DRM_FORMAT_XBGR2101010;
+	}
+}
+static bool intel_alloc_plane_obj(struct intel_crtc *crtc,
+				  struct intel_plane_config *plane_config)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_gem_object *obj = NULL;
+	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
+	u32 base = plane_config->base;
+	if (plane_config->size == 0)
+		return false;
+	obj = i915_gem_object_create_stolen_for_preallocated(dev, base, base,
+							     plane_config->size);
+	if (!obj)
+		return false;
+    main_fb_obj = obj;
+	if (plane_config->tiled) {
+		obj->tiling_mode = I915_TILING_X;
+		obj->stride = crtc->base.primary->fb->pitches[0];
+	}
+	mode_cmd.pixel_format = crtc->base.primary->fb->pixel_format;
+	mode_cmd.width = crtc->base.primary->fb->width;
+	mode_cmd.height = crtc->base.primary->fb->height;
+	mode_cmd.pitches[0] = crtc->base.primary->fb->pitches[0];
+	mutex_lock(&dev->struct_mutex);
+	if (intel_framebuffer_init(dev, to_intel_framebuffer(crtc->base.primary->fb),
+				   &mode_cmd, obj)) {
+		DRM_DEBUG_KMS("intel fb init failed\n");
+		goto out_unref_obj;
+	}
+	obj->frontbuffer_bits = INTEL_FRONTBUFFER_PRIMARY(crtc->pipe);
+	mutex_unlock(&dev->struct_mutex);
+	DRM_DEBUG_KMS("plane fb obj %p\n", obj);
+	return true;
+out_unref_obj:
+	drm_gem_object_unreference(&obj->base);
+	mutex_unlock(&dev->struct_mutex);
+	return false;
+}
+static void intel_find_plane_obj(struct intel_crtc *intel_crtc,
+				 struct intel_plane_config *plane_config)
+{
+	struct drm_device *dev = intel_crtc->base.dev;
+	struct drm_crtc *c;
+	struct intel_crtc *i;
+	struct drm_i915_gem_object *obj;
+	if (!intel_crtc->base.primary->fb)
+		return;
+	if (intel_alloc_plane_obj(intel_crtc, plane_config))
+		return;
+	kfree(intel_crtc->base.primary->fb);
+	intel_crtc->base.primary->fb = NULL;
+	/*
+	 * Failed to alloc the obj, check to see if we should share
+	 * an fb with another CRTC instead
+	 */
+	for_each_crtc(dev, c) {
+		i = to_intel_crtc(c);
+		if (c == &intel_crtc->base)
+			continue;
+		if (!i->active)
+			continue;
+		obj = intel_fb_obj(c->primary->fb);
+		if (obj == NULL)
+			continue;
+		if (i915_gem_obj_ggtt_offset(obj) == plane_config->base) {
+			drm_framebuffer_reference(c->primary->fb);
+			intel_crtc->base.primary->fb = c->primary->fb;
+			obj->frontbuffer_bits |= INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe);
+			break;
+		}
+	}
+}
+static void i9xx_update_primary_plane(struct drm_crtc *crtc,
-static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
+				     struct drm_framebuffer *fb,
-                 int x, int y)
+				     int x, int y)
+{
     struct drm_device *dev = crtc->dev;
     struct drm_i915_private *dev_priv = dev->dev_private;
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-    struct intel_framebuffer *intel_fb;
-    struct drm_i915_gem_object *obj;
+	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
     int plane = intel_crtc->plane;
 	unsigned long linear_offset;
     u32 dspcntr;
     u32 reg;
-    switch (plane) {
-    case 0:
-    case 1:
-        break;
-    default:
-		DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
-        return -EINVAL;
-    }
-    intel_fb = to_intel_framebuffer(fb);
-    obj = intel_fb->obj;
     reg = DSPCNTR(plane);
     dspcntr = I915_READ(reg);
     /* Mask out pixel format bits in case we change it */
     dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
 	switch (fb->pixel_format) {
 	case DRM_FORMAT_C8:
         dspcntr |= DISPPLANE_8BPP;
         break;
 	case DRM_FORMAT_XRGB1555:
 	case DRM_FORMAT_ARGB1555:
 		dspcntr |= DISPPLANE_BGRX555;
 		break;
 	case DRM_FORMAT_RGB565:
 		dspcntr |= DISPPLANE_BGRX565;
 		break;
 	case DRM_FORMAT_XRGB8888:
 	case DRM_FORMAT_ARGB8888:
 		dspcntr |= DISPPLANE_BGRX888;
 		break;
 	case DRM_FORMAT_XBGR8888:
 	case DRM_FORMAT_ABGR8888:
 		dspcntr |= DISPPLANE_RGBX888;
 		break;
 	case DRM_FORMAT_XRGB2101010:
 	case DRM_FORMAT_ARGB2101010:
 		dspcntr |= DISPPLANE_BGRX101010;
         break;
 	case DRM_FORMAT_XBGR2101010:
 	case DRM_FORMAT_ABGR2101010:
 		dspcntr |= DISPPLANE_RGBX101010;
         break;
     default:
 		BUG();
+    }
     if (INTEL_INFO(dev)->gen >= 4) {
         if (obj->tiling_mode != I915_TILING_NONE)
             dspcntr |= DISPPLANE_TILED;
         else
             dspcntr &= ~DISPPLANE_TILED;
+    }
 	if (IS_G4X(dev))
 		dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
     I915_WRITE(reg, dspcntr);
 	linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
 	if (INTEL_INFO(dev)->gen >= 4) {
 		intel_crtc->dspaddr_offset =
 			intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
 							   fb->bits_per_pixel / 8,
 							   fb->pitches[0]);
 		linear_offset -= intel_crtc->dspaddr_offset;
 	} else {
 		intel_crtc->dspaddr_offset = linear_offset;
+	}
 	DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
 		      i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
 		      fb->pitches[0]);
 	I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
     if (INTEL_INFO(dev)->gen >= 4) {
 		I915_WRITE(DSPSURF(plane),
 				     i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
         I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
 		I915_WRITE(DSPLINOFF(plane), linear_offset);
     } else
 		I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) + linear_offset);
     POSTING_READ(reg);
-    return 0;
+}
-static int ironlake_update_plane(struct drm_crtc *crtc,
+static void ironlake_update_primary_plane(struct drm_crtc *crtc,
+					 struct drm_framebuffer *fb,
-                 struct drm_framebuffer *fb, int x, int y)
+					 int x, int y)
+{
     struct drm_device *dev = crtc->dev;
     struct drm_i915_private *dev_priv = dev->dev_private;
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-    struct intel_framebuffer *intel_fb;
-    struct drm_i915_gem_object *obj;
+	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
     int plane = intel_crtc->plane;
 	unsigned long linear_offset;
     u32 dspcntr;
     u32 reg;
-    switch (plane) {
-    case 0:
-    case 1:
-	case 2:
-        break;
-    default:
-		DRM_ERROR("Can't update plane %c in SAREA\n", plane_name(plane));
-        return -EINVAL;
-    }
-    intel_fb = to_intel_framebuffer(fb);
-    obj = intel_fb->obj;
     reg = DSPCNTR(plane);
     dspcntr = I915_READ(reg);
     /* Mask out pixel format bits in case we change it */
     dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
 	switch (fb->pixel_format) {
 	case DRM_FORMAT_C8:
         dspcntr |= DISPPLANE_8BPP;
         break;
 	case DRM_FORMAT_RGB565:
 		dspcntr |= DISPPLANE_BGRX565;
         break;
 	case DRM_FORMAT_XRGB8888:
 	case DRM_FORMAT_ARGB8888:
 		dspcntr |= DISPPLANE_BGRX888;
 		break;
 	case DRM_FORMAT_XBGR8888:
 	case DRM_FORMAT_ABGR8888:
 		dspcntr |= DISPPLANE_RGBX888;
 		break;
 	case DRM_FORMAT_XRGB2101010:
 	case DRM_FORMAT_ARGB2101010:
 		dspcntr |= DISPPLANE_BGRX101010;
 		break;
 	case DRM_FORMAT_XBGR2101010:
 	case DRM_FORMAT_ABGR2101010:
 		dspcntr |= DISPPLANE_RGBX101010;
         break;
     default:
 		BUG();
+    }
 	if (obj->tiling_mode != I915_TILING_NONE)
 		dspcntr |= DISPPLANE_TILED;
 	else
         dspcntr &= ~DISPPLANE_TILED;
 	if (IS_HASWELL(dev) || IS_BROADWELL(dev))
 		dspcntr &= ~DISPPLANE_TRICKLE_FEED_DISABLE;
 	else
     dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
     I915_WRITE(reg, dspcntr);
 	linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
 	intel_crtc->dspaddr_offset =
 		intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
 						   fb->bits_per_pixel / 8,
 						   fb->pitches[0]);
 	linear_offset -= intel_crtc->dspaddr_offset;
 	DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
 		      i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
 		      fb->pitches[0]);
 	I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
 	I915_WRITE(DSPSURF(plane),
 			     i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
 	if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
 		I915_WRITE(DSPOFFSET(plane), (y << 16) | x);
 	} else {
 	I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
 	I915_WRITE(DSPLINOFF(plane), linear_offset);
+	}
 	POSTING_READ(reg);
-    return 0;
+}
 /* Assume fb object is pinned & idle & fenced and just update base pointers */
 static int
 intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 			   int x, int y, enum mode_set_atomic state)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	if (dev_priv->display.disable_fbc)
 		dev_priv->display.disable_fbc(dev);
-	intel_increase_pllclock(crtc);
+	intel_increase_pllclock(dev, to_intel_crtc(crtc)->pipe);
+	dev_priv->display.update_primary_plane(crtc, fb, x, y);
-	return dev_priv->display.update_plane(crtc, fb, x, y);
+	return 0;
+}
 #if 0
 void intel_display_handle_reset(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc;
 	/*
 	 * Flips in the rings have been nuked by the reset,
 	 * so complete all pending flips so that user space
 	 * will get its events and not get stuck.
+	 *
 	 * Also update the base address of all primary
 	 * planes to the the last fb to make sure we're
 	 * showing the correct fb after a reset.
+	 *
 	 * Need to make two loops over the crtcs so that we
 	 * don't try to grab a crtc mutex before the
 	 * pending_flip_queue really got woken up.
 	 */
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+	for_each_crtc(dev, crtc) {
 		struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 		enum plane plane = intel_crtc->plane;
 		intel_prepare_page_flip(dev, plane);
 		intel_finish_page_flip_plane(dev, plane);
+	}
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+	for_each_crtc(dev, crtc) {
 		struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-		mutex_lock(&crtc->mutex);
+		drm_modeset_lock(&crtc->mutex, NULL);
 		/*
 		 * FIXME: Once we have proper support for primary planes (and
 		 * disabling them without disabling the entire crtc) allow again
-		 * a NULL crtc->fb.
+		 * a NULL crtc->primary->fb.
 		 */
-		if (intel_crtc->active && crtc->fb)
+		if (intel_crtc->active && crtc->primary->fb)
-			dev_priv->display.update_plane(crtc, crtc->fb,
+			dev_priv->display.update_primary_plane(crtc,
+							       crtc->primary->fb,
+							       crtc->x,
-						       crtc->x, crtc->y);
+							       crtc->y);
-		mutex_unlock(&crtc->mutex);
+		drm_modeset_unlock(&crtc->mutex);
+	}
+}
 static int
 intel_finish_fb(struct drm_framebuffer *old_fb)
+{
-	struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj;
+	struct drm_i915_gem_object *obj = intel_fb_obj(old_fb);
 	struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
 	bool was_interruptible = dev_priv->mm.interruptible;
 	int ret;
 	/* Big Hammer, we also need to ensure that any pending
 	 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
 	 * current scanout is retired before unpinning the old
 	 * framebuffer.
+	 *
 	 * This should only fail upon a hung GPU, in which case we
 	 * can safely continue.
 	 */
 	dev_priv->mm.interruptible = false;
 	ret = i915_gem_object_finish_gpu(obj);
 	dev_priv->mm.interruptible = was_interruptible;
 	return ret;
+}
-static void intel_crtc_update_sarea_pos(struct drm_crtc *crtc, int x, int y)
+static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
-	struct drm_i915_master_private *master_priv;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	unsigned long flags;
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	bool pending;
+	if (i915_reset_in_progress(&dev_priv->gpu_error) ||
-	if (!dev->primary->master)
+	    intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
-		return;
+		return false;
-	master_priv = dev->primary->master->driver_priv;
-	if (!master_priv->sarea_priv)
-		return;
-	switch (intel_crtc->pipe) {
+	spin_lock_irqsave(&dev->event_lock, flags);
-	case 0:
-		master_priv->sarea_priv->pipeA_x = x;
-		master_priv->sarea_priv->pipeA_y = y;
-		break;
-	case 1:
-		master_priv->sarea_priv->pipeB_x = x;
-		master_priv->sarea_priv->pipeB_y = y;
-		break;
+	pending = to_intel_crtc(crtc)->unpin_work != NULL;
-	default:
+	spin_unlock_irqrestore(&dev->event_lock, flags);
 		break;
 	return pending;
+}
 #endif
 static int
 intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
 		    struct drm_framebuffer *fb)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	enum pipe pipe = intel_crtc->pipe;
-	struct drm_framebuffer *old_fb;
+	struct drm_framebuffer *old_fb = crtc->primary->fb;
+	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
+	struct drm_i915_gem_object *old_obj = intel_fb_obj(old_fb);
 	int ret;
 	/* no fb bound */
 	if (!fb) {
 		DRM_ERROR("No FB bound\n");
 		return 0;
+	}
 	if (intel_crtc->plane > INTEL_INFO(dev)->num_pipes) {
 		DRM_ERROR("no plane for crtc: plane %c, num_pipes %d\n",
 			  plane_name(intel_crtc->plane),
 				INTEL_INFO(dev)->num_pipes);
 		return -EINVAL;
+	}
 	mutex_lock(&dev->struct_mutex);
-    ret = intel_pin_and_fence_fb_obj(dev,
+	ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
+	if (ret == 0)
-                    to_intel_framebuffer(fb)->obj,
+		i915_gem_track_fb(old_obj, obj,
-                    NULL);
+				  INTEL_FRONTBUFFER_PRIMARY(pipe));
-    if (ret != 0) {
-       mutex_unlock(&dev->struct_mutex);
+	mutex_unlock(&dev->struct_mutex);
+    if (ret != 0) {
        DRM_ERROR("pin & fence failed\n");
        return ret;
+    }
 	/*
 	 * Update pipe size and adjust fitter if needed: the reason for this is
 	 * that in compute_mode_changes we check the native mode (not the pfit
 	 * mode) to see if we can flip rather than do a full mode set. In the
 	 * fastboot case, we'll flip, but if we don't update the pipesrc and
 	 * pfit state, we'll end up with a big fb scanned out into the wrong
 	 * sized surface.
+	 *
 	 * To fix this properly, we need to hoist the checks up into
 	 * compute_mode_changes (or above), check the actual pfit state and
 	 * whether the platform allows pfit disable with pipe active, and only
 	 * then update the pipesrc and pfit state, even on the flip path.
 	 */
-	if (i915_fastboot) {
+	if (i915.fastboot) {
 		const struct drm_display_mode *adjusted_mode =
 			&intel_crtc->config.adjusted_mode;
 		I915_WRITE(PIPESRC(intel_crtc->pipe),
 			   ((adjusted_mode->crtc_hdisplay - 1) << 16) |
 			   (adjusted_mode->crtc_vdisplay - 1));
 		if (!intel_crtc->config.pch_pfit.enabled &&
 		    (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) ||
 		     intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
 			I915_WRITE(PF_CTL(intel_crtc->pipe), 0);
 			I915_WRITE(PF_WIN_POS(intel_crtc->pipe), 0);
 			I915_WRITE(PF_WIN_SZ(intel_crtc->pipe), 0);
+		}
 		intel_crtc->config.pipe_src_w = adjusted_mode->crtc_hdisplay;
 		intel_crtc->config.pipe_src_h = adjusted_mode->crtc_vdisplay;
+	}
-	ret = dev_priv->display.update_plane(crtc, fb, x, y);
+	dev_priv->display.update_primary_plane(crtc, fb, x, y);
-	if (ret) {
-		intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);
-		mutex_unlock(&dev->struct_mutex);
+	if (intel_crtc->active)
-		DRM_ERROR("failed to update base address\n");
-        return ret;
-	}
+		intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_PRIMARY(pipe));
 	old_fb = crtc->fb;
-	crtc->fb = fb;
+	crtc->primary->fb = fb;
 	crtc->x = x;
 	crtc->y = y;
 	if (old_fb) {
 		if (intel_crtc->active && old_fb != fb)
 		intel_wait_for_vblank(dev, intel_crtc->pipe);
+		mutex_lock(&dev->struct_mutex);
-		intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
+		intel_unpin_fb_obj(old_obj);
+		mutex_unlock(&dev->struct_mutex);
+	}
 	mutex_lock(&dev->struct_mutex);
-	intel_update_fbc(dev);
-	intel_edp_psr_update(dev);
+	intel_update_fbc(dev);
 	mutex_unlock(&dev->struct_mutex);
     return 0;
+}
 static void intel_fdi_normal_train(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
 	u32 reg, temp;
 	/* enable normal train */
 	reg = FDI_TX_CTL(pipe);
 	temp = I915_READ(reg);
 	if (IS_IVYBRIDGE(dev)) {
 		temp &= ~FDI_LINK_TRAIN_NONE_IVB;
 		temp |= FDI_LINK_TRAIN_NONE_IVB | FDI_TX_ENHANCE_FRAME_ENABLE;
 	} else {
 		temp &= ~FDI_LINK_TRAIN_NONE;
 		temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
+	}
 	I915_WRITE(reg, temp);
 	reg = FDI_RX_CTL(pipe);
 	temp = I915_READ(reg);
 	if (HAS_PCH_CPT(dev)) {
 		temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
 		temp |= FDI_LINK_TRAIN_NORMAL_CPT;
 	} else {
 		temp &= ~FDI_LINK_TRAIN_NONE;
 		temp |= FDI_LINK_TRAIN_NONE;
+	}
 	I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
 	/* wait one idle pattern time */
 	POSTING_READ(reg);
 	udelay(1000);
 	/* IVB wants error correction enabled */
 	if (IS_IVYBRIDGE(dev))
 		I915_WRITE(reg, I915_READ(reg) | FDI_FS_ERRC_ENABLE |
 			   FDI_FE_ERRC_ENABLE);
+}
 static bool pipe_has_enabled_pch(struct intel_crtc *crtc)
+{
 	return crtc->base.enabled && crtc->active &&
 		crtc->config.has_pch_encoder;
+}
 static void ivb_modeset_global_resources(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *pipe_B_crtc =
 		to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
 	struct intel_crtc *pipe_C_crtc =
 		to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_C]);
 	uint32_t temp;
 	/*
 	 * When everything is off disable fdi C so that we could enable fdi B
 	 * with all lanes. Note that we don't care about enabled pipes without
 	 * an enabled pch encoder.
 	 */
 	if (!pipe_has_enabled_pch(pipe_B_crtc) &&
 	    !pipe_has_enabled_pch(pipe_C_crtc)) {
 		WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
 		WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
 		temp = I915_READ(SOUTH_CHICKEN1);
 		temp &= ~FDI_BC_BIFURCATION_SELECT;
 		DRM_DEBUG_KMS("disabling fdi C rx\n");
 		I915_WRITE(SOUTH_CHICKEN1, temp);
+	}
+}
 /* The FDI link training functions for ILK/Ibexpeak. */
 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
+{
     struct drm_device *dev = crtc->dev;
     struct drm_i915_private *dev_priv = dev->dev_private;
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
     int pipe = intel_crtc->pipe;
-    int plane = intel_crtc->plane;
     u32 reg, temp, tries;
-    /* FDI needs bits from pipe & plane first */
+	/* FDI needs bits from pipe first */
-    assert_pipe_enabled(dev_priv, pipe);
-    assert_plane_enabled(dev_priv, plane);
+    assert_pipe_enabled(dev_priv, pipe);
     /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
        for train result */
     reg = FDI_RX_IMR(pipe);
     temp = I915_READ(reg);
     temp &= ~FDI_RX_SYMBOL_LOCK;
     temp &= ~FDI_RX_BIT_LOCK;
     I915_WRITE(reg, temp);
     I915_READ(reg);
     udelay(150);
     /* enable CPU FDI TX and PCH FDI RX */
     reg = FDI_TX_CTL(pipe);
     temp = I915_READ(reg);
 	temp &= ~FDI_DP_PORT_WIDTH_MASK;
 	temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
     temp &= ~FDI_LINK_TRAIN_NONE;
     temp |= FDI_LINK_TRAIN_PATTERN_1;
     I915_WRITE(reg, temp | FDI_TX_ENABLE);
     reg = FDI_RX_CTL(pipe);
     temp = I915_READ(reg);
     temp &= ~FDI_LINK_TRAIN_NONE;
     temp |= FDI_LINK_TRAIN_PATTERN_1;
     I915_WRITE(reg, temp | FDI_RX_ENABLE);
     POSTING_READ(reg);
     udelay(150);
     /* Ironlake workaround, enable clock pointer after FDI enable*/
         I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
         I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR |
                FDI_RX_PHASE_SYNC_POINTER_EN);
     reg = FDI_RX_IIR(pipe);
     for (tries = 0; tries < 5; tries++) {
         temp = I915_READ(reg);
         DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
         if ((temp & FDI_RX_BIT_LOCK)) {
             DRM_DEBUG_KMS("FDI train 1 done.\n");
             I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
             break;
+        }
+    }
     if (tries == 5)
         DRM_ERROR("FDI train 1 fail!\n");
     /* Train 2 */
     reg = FDI_TX_CTL(pipe);
     temp = I915_READ(reg);
     temp &= ~FDI_LINK_TRAIN_NONE;
     temp |= FDI_LINK_TRAIN_PATTERN_2;
     I915_WRITE(reg, temp);
     reg = FDI_RX_CTL(pipe);
     temp = I915_READ(reg);
     temp &= ~FDI_LINK_TRAIN_NONE;
     temp |= FDI_LINK_TRAIN_PATTERN_2;
     I915_WRITE(reg, temp);
     POSTING_READ(reg);
     udelay(150);
     reg = FDI_RX_IIR(pipe);
     for (tries = 0; tries < 5; tries++) {
         temp = I915_READ(reg);
         DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
         if (temp & FDI_RX_SYMBOL_LOCK) {
             I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
             DRM_DEBUG_KMS("FDI train 2 done.\n");
             break;
+        }
+    }
     if (tries == 5)
         DRM_ERROR("FDI train 2 fail!\n");
     DRM_DEBUG_KMS("FDI train done\n");
+}
 static const int snb_b_fdi_train_param[] = {
     FDI_LINK_TRAIN_400MV_0DB_SNB_B,
     FDI_LINK_TRAIN_400MV_6DB_SNB_B,
     FDI_LINK_TRAIN_600MV_3_5DB_SNB_B,
     FDI_LINK_TRAIN_800MV_0DB_SNB_B,
 };
 /* The FDI link training functions for SNB/Cougarpoint. */
 static void gen6_fdi_link_train(struct drm_crtc *crtc)
+{
     struct drm_device *dev = crtc->dev;
     struct drm_i915_private *dev_priv = dev->dev_private;
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
     int pipe = intel_crtc->pipe;
 	u32 reg, temp, i, retry;
     /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
        for train result */
     reg = FDI_RX_IMR(pipe);
     temp = I915_READ(reg);
     temp &= ~FDI_RX_SYMBOL_LOCK;
     temp &= ~FDI_RX_BIT_LOCK;
     I915_WRITE(reg, temp);
     POSTING_READ(reg);
     udelay(150);
     /* enable CPU FDI TX and PCH FDI RX */
     reg = FDI_TX_CTL(pipe);
     temp = I915_READ(reg);
 	temp &= ~FDI_DP_PORT_WIDTH_MASK;
 	temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
     temp &= ~FDI_LINK_TRAIN_NONE;
     temp |= FDI_LINK_TRAIN_PATTERN_1;
     temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
     /* SNB-B */
     temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
     I915_WRITE(reg, temp | FDI_TX_ENABLE);
 	I915_WRITE(FDI_RX_MISC(pipe),
 		   FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
     reg = FDI_RX_CTL(pipe);
     temp = I915_READ(reg);
     if (HAS_PCH_CPT(dev)) {
         temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
         temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
     } else {
         temp &= ~FDI_LINK_TRAIN_NONE;
         temp |= FDI_LINK_TRAIN_PATTERN_1;
+    }
     I915_WRITE(reg, temp | FDI_RX_ENABLE);
     POSTING_READ(reg);
     udelay(150);
 	for (i = 0; i < 4; i++) {
         reg = FDI_TX_CTL(pipe);
         temp = I915_READ(reg);
         temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
         temp |= snb_b_fdi_train_param[i];
         I915_WRITE(reg, temp);
         POSTING_READ(reg);
         udelay(500);
 		for (retry = 0; retry < 5; retry++) {
         reg = FDI_RX_IIR(pipe);
         temp = I915_READ(reg);
         DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
         if (temp & FDI_RX_BIT_LOCK) {
             I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
             DRM_DEBUG_KMS("FDI train 1 done.\n");
             break;
+        }
 			udelay(50);
+		}
 		if (retry < 5)
 			break;
+    }
     if (i == 4)
         DRM_ERROR("FDI train 1 fail!\n");
     /* Train 2 */
     reg = FDI_TX_CTL(pipe);
     temp = I915_READ(reg);
     temp &= ~FDI_LINK_TRAIN_NONE;
     temp |= FDI_LINK_TRAIN_PATTERN_2;
     if (IS_GEN6(dev)) {
         temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
         /* SNB-B */
         temp |= FDI_LINK_TRAIN_400MV_0DB_SNB_B;
+    }
     I915_WRITE(reg, temp);
     reg = FDI_RX_CTL(pipe);
     temp = I915_READ(reg);
     if (HAS_PCH_CPT(dev)) {
         temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
         temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
     } else {
         temp &= ~FDI_LINK_TRAIN_NONE;
         temp |= FDI_LINK_TRAIN_PATTERN_2;
+    }
     I915_WRITE(reg, temp);
     POSTING_READ(reg);
     udelay(150);
 	for (i = 0; i < 4; i++) {
         reg = FDI_TX_CTL(pipe);
         temp = I915_READ(reg);
         temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
         temp |= snb_b_fdi_train_param[i];
         I915_WRITE(reg, temp);
         POSTING_READ(reg);
         udelay(500);
 		for (retry = 0; retry < 5; retry++) {
         reg = FDI_RX_IIR(pipe);
         temp = I915_READ(reg);
         DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
         if (temp & FDI_RX_SYMBOL_LOCK) {
             I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
             DRM_DEBUG_KMS("FDI train 2 done.\n");
             break;
+        }
 			udelay(50);
+		}
 		if (retry < 5)
 			break;
+    }
     if (i == 4)
         DRM_ERROR("FDI train 2 fail!\n");
     DRM_DEBUG_KMS("FDI train done.\n");
+}
 /* Manual link training for Ivy Bridge A0 parts */
 static void ivb_manual_fdi_link_train(struct drm_crtc *crtc)
+{
     struct drm_device *dev = crtc->dev;
     struct drm_i915_private *dev_priv = dev->dev_private;
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
     int pipe = intel_crtc->pipe;
 	u32 reg, temp, i, j;
     /* Train 1: umask FDI RX Interrupt symbol_lock and bit_lock bit
        for train result */
     reg = FDI_RX_IMR(pipe);
     temp = I915_READ(reg);
     temp &= ~FDI_RX_SYMBOL_LOCK;
     temp &= ~FDI_RX_BIT_LOCK;
     I915_WRITE(reg, temp);
     POSTING_READ(reg);
     udelay(150);
 	DRM_DEBUG_KMS("FDI_RX_IIR before link train 0x%x\n",
 		      I915_READ(FDI_RX_IIR(pipe)));
 	/* Try each vswing and preemphasis setting twice before moving on */
 	for (j = 0; j < ARRAY_SIZE(snb_b_fdi_train_param) * 2; j++) {
 		/* disable first in case we need to retry */
 		reg = FDI_TX_CTL(pipe);
 		temp = I915_READ(reg);
 		temp &= ~(FDI_LINK_TRAIN_AUTO | FDI_LINK_TRAIN_NONE_IVB);
 		temp &= ~FDI_TX_ENABLE;
 		I915_WRITE(reg, temp);
 		reg = FDI_RX_CTL(pipe);
 		temp = I915_READ(reg);
 		temp &= ~FDI_LINK_TRAIN_AUTO;
 		temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
 		temp &= ~FDI_RX_ENABLE;
 		I915_WRITE(reg, temp);
     /* enable CPU FDI TX and PCH FDI RX */
     reg = FDI_TX_CTL(pipe);
     temp = I915_READ(reg);
 	temp &= ~FDI_DP_PORT_WIDTH_MASK;
 	temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
     temp |= FDI_LINK_TRAIN_PATTERN_1_IVB;
     temp &= ~FDI_LINK_TRAIN_VOL_EMP_MASK;
 		temp |= snb_b_fdi_train_param[j/2];
 	temp |= FDI_COMPOSITE_SYNC;
     I915_WRITE(reg, temp | FDI_TX_ENABLE);
 	I915_WRITE(FDI_RX_MISC(pipe),
 		   FDI_RX_TP1_TO_TP2_48 | FDI_RX_FDI_DELAY_90);
     reg = FDI_RX_CTL(pipe);
     temp = I915_READ(reg);
     temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
 	temp |= FDI_COMPOSITE_SYNC;
     I915_WRITE(reg, temp | FDI_RX_ENABLE);
     POSTING_READ(reg);
 		udelay(1); /* should be 0.5us */
 	for (i = 0; i < 4; i++) {
         reg = FDI_RX_IIR(pipe);
         temp = I915_READ(reg);
         DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
         if (temp & FDI_RX_BIT_LOCK ||
             (I915_READ(reg) & FDI_RX_BIT_LOCK)) {
             I915_WRITE(reg, temp | FDI_RX_BIT_LOCK);
 				DRM_DEBUG_KMS("FDI train 1 done, level %i.\n",
 					      i);
             break;
+        }
 			udelay(1); /* should be 0.5us */
+		}
 		if (i == 4) {
 			DRM_DEBUG_KMS("FDI train 1 fail on vswing %d\n", j / 2);
 			continue;
+    }
     /* Train 2 */
     reg = FDI_TX_CTL(pipe);
     temp = I915_READ(reg);
     temp &= ~FDI_LINK_TRAIN_NONE_IVB;
     temp |= FDI_LINK_TRAIN_PATTERN_2_IVB;
     I915_WRITE(reg, temp);
     reg = FDI_RX_CTL(pipe);
     temp = I915_READ(reg);
     temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
     temp |= FDI_LINK_TRAIN_PATTERN_2_CPT;
     I915_WRITE(reg, temp);
     POSTING_READ(reg);
 		udelay(2); /* should be 1.5us */
 	for (i = 0; i < 4; i++) {
         reg = FDI_RX_IIR(pipe);
         temp = I915_READ(reg);
         DRM_DEBUG_KMS("FDI_RX_IIR 0x%x\n", temp);
 			if (temp & FDI_RX_SYMBOL_LOCK ||
 			    (I915_READ(reg) & FDI_RX_SYMBOL_LOCK)) {
             I915_WRITE(reg, temp | FDI_RX_SYMBOL_LOCK);
 				DRM_DEBUG_KMS("FDI train 2 done, level %i.\n",
 					      i);
 				goto train_done;
+        }
 			udelay(2); /* should be 1.5us */
+    }
     if (i == 4)
 			DRM_DEBUG_KMS("FDI train 2 fail on vswing %d\n", j / 2);
+	}
 train_done:
     DRM_DEBUG_KMS("FDI train done.\n");
+}
 static void ironlake_fdi_pll_enable(struct intel_crtc *intel_crtc)
+{
 	struct drm_device *dev = intel_crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe = intel_crtc->pipe;
 	u32 reg, temp;
 	/* enable PCH FDI RX PLL, wait warmup plus DMI latency */
 	reg = FDI_RX_CTL(pipe);
 	temp = I915_READ(reg);
 	temp &= ~(FDI_DP_PORT_WIDTH_MASK | (0x7 << 16));
 	temp |= FDI_DP_PORT_WIDTH(intel_crtc->config.fdi_lanes);
 	temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
 	I915_WRITE(reg, temp | FDI_RX_PLL_ENABLE);
 	POSTING_READ(reg);
 	udelay(200);
 	/* Switch from Rawclk to PCDclk */
 	temp = I915_READ(reg);
 	I915_WRITE(reg, temp | FDI_PCDCLK);
 	POSTING_READ(reg);
 	udelay(200);
 	/* Enable CPU FDI TX PLL, always on for Ironlake */
 	reg = FDI_TX_CTL(pipe);
 	temp = I915_READ(reg);
 	if ((temp & FDI_TX_PLL_ENABLE) == 0) {
 		I915_WRITE(reg, temp | FDI_TX_PLL_ENABLE);
 		POSTING_READ(reg);
 		udelay(100);
+	}
+}
 static void ironlake_fdi_pll_disable(struct intel_crtc *intel_crtc)
+{
 	struct drm_device *dev = intel_crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe = intel_crtc->pipe;
 	u32 reg, temp;
 	/* Switch from PCDclk to Rawclk */
 	reg = FDI_RX_CTL(pipe);
 	temp = I915_READ(reg);
 	I915_WRITE(reg, temp & ~FDI_PCDCLK);
 	/* Disable CPU FDI TX PLL */
 	reg = FDI_TX_CTL(pipe);
 	temp = I915_READ(reg);
 	I915_WRITE(reg, temp & ~FDI_TX_PLL_ENABLE);
 	POSTING_READ(reg);
 	udelay(100);
 	reg = FDI_RX_CTL(pipe);
 	temp = I915_READ(reg);
 	I915_WRITE(reg, temp & ~FDI_RX_PLL_ENABLE);
 	/* Wait for the clocks to turn off. */
 	POSTING_READ(reg);
 	udelay(100);
+}
 static void ironlake_fdi_disable(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
 	u32 reg, temp;
 	/* disable CPU FDI tx and PCH FDI rx */
 	reg = FDI_TX_CTL(pipe);
 	temp = I915_READ(reg);
 	I915_WRITE(reg, temp & ~FDI_TX_ENABLE);
 	POSTING_READ(reg);
 	reg = FDI_RX_CTL(pipe);
 	temp = I915_READ(reg);
 	temp &= ~(0x7 << 16);
 	temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
 	I915_WRITE(reg, temp & ~FDI_RX_ENABLE);
 	POSTING_READ(reg);
 	udelay(100);
 	/* Ironlake workaround, disable clock pointer after downing FDI */
-	if (HAS_PCH_IBX(dev)) {
+	if (HAS_PCH_IBX(dev))
 		I915_WRITE(FDI_RX_CHICKEN(pipe), FDI_RX_PHASE_SYNC_POINTER_OVR);
-	}
 	/* still set train pattern 1 */
 	reg = FDI_TX_CTL(pipe);
 	temp = I915_READ(reg);
 	temp &= ~FDI_LINK_TRAIN_NONE;
 	temp |= FDI_LINK_TRAIN_PATTERN_1;
 	I915_WRITE(reg, temp);
 	reg = FDI_RX_CTL(pipe);
 	temp = I915_READ(reg);
 	if (HAS_PCH_CPT(dev)) {
 		temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
 		temp |= FDI_LINK_TRAIN_PATTERN_1_CPT;
 	} else {
 		temp &= ~FDI_LINK_TRAIN_NONE;
 		temp |= FDI_LINK_TRAIN_PATTERN_1;
+	}
 	/* BPC in FDI rx is consistent with that in PIPECONF */
 	temp &= ~(0x07 << 16);
 	temp |= (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) << 11;
 	I915_WRITE(reg, temp);
 	POSTING_READ(reg);
 	udelay(100);
+}
-static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
+bool intel_has_pending_fb_unpin(struct drm_device *dev)
 {
-	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	unsigned long flags;
+	struct intel_crtc *crtc;
+	/* Note that we don't need to be called with mode_config.lock here
+	 * as our list of CRTC objects is static for the lifetime of the
+	 * device and so cannot disappear as we iterate. Similarly, we can
+	 * happily treat the predicates as racy, atomic checks as userspace
+	 * cannot claim and pin a new fb without at least acquring the
-	bool pending;
+	 * struct_mutex and so serialising with us.
+	 */
-	if (i915_reset_in_progress(&dev_priv->gpu_error) ||
+	for_each_intel_crtc(dev, crtc) {
-	    intel_crtc->reset_counter != atomic_read(&dev_priv->gpu_error.reset_counter))
-		return false;
+		if (atomic_read(&crtc->unpin_work_count) == 0)
+			continue;
+		if (crtc->unpin_work)
+			intel_wait_for_vblank(dev, crtc->pipe);
-	spin_lock_irqsave(&dev->event_lock, flags);
-	pending = to_intel_crtc(crtc)->unpin_work != NULL;
+		return true;
 	spin_unlock_irqrestore(&dev->event_lock, flags);
-	return pending;
+	return false;
+}
 #if 0
-static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
+void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	if (crtc->fb == NULL)
+	if (crtc->primary->fb == NULL)
 		return;
 	WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
-	wait_event(dev_priv->pending_flip_queue,
+	WARN_ON(wait_event_timeout(dev_priv->pending_flip_queue,
+				   !intel_crtc_has_pending_flip(crtc),
-		   !intel_crtc_has_pending_flip(crtc));
+*HZ) == 0);
 	mutex_lock(&dev->struct_mutex);
-	intel_finish_fb(crtc->fb);
+	intel_finish_fb(crtc->primary->fb);
 	mutex_unlock(&dev->struct_mutex);
+}
 #endif
 /* Program iCLKIP clock to the desired frequency */
 static void lpt_program_iclkip(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int clock = to_intel_crtc(crtc)->config.adjusted_mode.crtc_clock;
 	u32 divsel, phaseinc, auxdiv, phasedir = 0;
 	u32 temp;
 	mutex_lock(&dev_priv->dpio_lock);
 	/* It is necessary to ungate the pixclk gate prior to programming
 	 * the divisors, and gate it back when it is done.
 	 */
 	I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_GATE);
 	/* Disable SSCCTL */
 	intel_sbi_write(dev_priv, SBI_SSCCTL6,
 			intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK) |
 				SBI_SSCCTL_DISABLE,
 			SBI_ICLK);
 	/* 20MHz is a corner case which is out of range for the 7-bit divisor */
 	if (clock == 20000) {
 		auxdiv = 1;
 		divsel = 0x41;
 		phaseinc = 0x20;
 	} else {
 		/* The iCLK virtual clock root frequency is in MHz,
 		 * but the adjusted_mode->crtc_clock in in KHz. To get the
 		 * divisors, it is necessary to divide one by another, so we
 		 * convert the virtual clock precision to KHz here for higher
 		 * precision.
 		 */
 		u32 iclk_virtual_root_freq = 172800 * 1000;
 		u32 iclk_pi_range = 64;
 		u32 desired_divisor, msb_divisor_value, pi_value;
 		desired_divisor = (iclk_virtual_root_freq / clock);
 		msb_divisor_value = desired_divisor / iclk_pi_range;
 		pi_value = desired_divisor % iclk_pi_range;
 		auxdiv = 0;
 		divsel = msb_divisor_value - 2;
 		phaseinc = pi_value;
+	}
 	/* This should not happen with any sane values */
 	WARN_ON(SBI_SSCDIVINTPHASE_DIVSEL(divsel) &
 		~SBI_SSCDIVINTPHASE_DIVSEL_MASK);
 	WARN_ON(SBI_SSCDIVINTPHASE_DIR(phasedir) &
 		~SBI_SSCDIVINTPHASE_INCVAL_MASK);
 	DRM_DEBUG_KMS("iCLKIP clock: found settings for %dKHz refresh rate: auxdiv=%x, divsel=%x, phasedir=%x, phaseinc=%x\n",
 			clock,
 			auxdiv,
 			divsel,
 			phasedir,
 			phaseinc);
 	/* Program SSCDIVINTPHASE6 */
 	temp = intel_sbi_read(dev_priv, SBI_SSCDIVINTPHASE6, SBI_ICLK);
 	temp &= ~SBI_SSCDIVINTPHASE_DIVSEL_MASK;
 	temp |= SBI_SSCDIVINTPHASE_DIVSEL(divsel);
 	temp &= ~SBI_SSCDIVINTPHASE_INCVAL_MASK;
 	temp |= SBI_SSCDIVINTPHASE_INCVAL(phaseinc);
 	temp |= SBI_SSCDIVINTPHASE_DIR(phasedir);
 	temp |= SBI_SSCDIVINTPHASE_PROPAGATE;
 	intel_sbi_write(dev_priv, SBI_SSCDIVINTPHASE6, temp, SBI_ICLK);
 	/* Program SSCAUXDIV */
 	temp = intel_sbi_read(dev_priv, SBI_SSCAUXDIV6, SBI_ICLK);
 	temp &= ~SBI_SSCAUXDIV_FINALDIV2SEL(1);
 	temp |= SBI_SSCAUXDIV_FINALDIV2SEL(auxdiv);
 	intel_sbi_write(dev_priv, SBI_SSCAUXDIV6, temp, SBI_ICLK);
 	/* Enable modulator and associated divider */
 	temp = intel_sbi_read(dev_priv, SBI_SSCCTL6, SBI_ICLK);
 	temp &= ~SBI_SSCCTL_DISABLE;
 	intel_sbi_write(dev_priv, SBI_SSCCTL6, temp, SBI_ICLK);
 	/* Wait for initialization time */
 	udelay(24);
 	I915_WRITE(PIXCLK_GATE, PIXCLK_GATE_UNGATE);
 	mutex_unlock(&dev_priv->dpio_lock);
+}
 static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc,
 						enum pipe pch_transcoder)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum transcoder cpu_transcoder = crtc->config.cpu_transcoder;
 	I915_WRITE(PCH_TRANS_HTOTAL(pch_transcoder),
 		   I915_READ(HTOTAL(cpu_transcoder)));
 	I915_WRITE(PCH_TRANS_HBLANK(pch_transcoder),
 		   I915_READ(HBLANK(cpu_transcoder)));
 	I915_WRITE(PCH_TRANS_HSYNC(pch_transcoder),
 		   I915_READ(HSYNC(cpu_transcoder)));
 	I915_WRITE(PCH_TRANS_VTOTAL(pch_transcoder),
 		   I915_READ(VTOTAL(cpu_transcoder)));
 	I915_WRITE(PCH_TRANS_VBLANK(pch_transcoder),
 		   I915_READ(VBLANK(cpu_transcoder)));
 	I915_WRITE(PCH_TRANS_VSYNC(pch_transcoder),
 		   I915_READ(VSYNC(cpu_transcoder)));
 	I915_WRITE(PCH_TRANS_VSYNCSHIFT(pch_transcoder),
 		   I915_READ(VSYNCSHIFT(cpu_transcoder)));
+}
 static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t temp;
 	temp = I915_READ(SOUTH_CHICKEN1);
 	if (temp & FDI_BC_BIFURCATION_SELECT)
 		return;
 	WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE);
 	WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE);
 	temp |= FDI_BC_BIFURCATION_SELECT;
 	DRM_DEBUG_KMS("enabling fdi C rx\n");
 	I915_WRITE(SOUTH_CHICKEN1, temp);
 	POSTING_READ(SOUTH_CHICKEN1);
+}
 static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc)
+{
 	struct drm_device *dev = intel_crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	switch (intel_crtc->pipe) {
 	case PIPE_A:
 		break;
 	case PIPE_B:
 		if (intel_crtc->config.fdi_lanes > 2)
 			WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT);
 		else
 			cpt_enable_fdi_bc_bifurcation(dev);
 		break;
 	case PIPE_C:
 		cpt_enable_fdi_bc_bifurcation(dev);
 		break;
 	default:
 		BUG();
+	}
+}
 /*
  * Enable PCH resources required for PCH ports:
  *   - PCH PLLs
  *   - FDI training & RX/TX
  *   - update transcoder timings
  *   - DP transcoding bits
  *   - transcoder
  */
 static void ironlake_pch_enable(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
 	u32 reg, temp;
 	assert_pch_transcoder_disabled(dev_priv, pipe);
 	if (IS_IVYBRIDGE(dev))
 		ivybridge_update_fdi_bc_bifurcation(intel_crtc);
 	/* Write the TU size bits before fdi link training, so that error
 	 * detection works. */
 	I915_WRITE(FDI_RX_TUSIZE1(pipe),
 		   I915_READ(PIPE_DATA_M1(pipe)) & TU_SIZE_MASK);
 	/* For PCH output, training FDI link */
 	dev_priv->display.fdi_link_train(crtc);
 	/* We need to program the right clock selection before writing the pixel
 	 * mutliplier into the DPLL. */
 	if (HAS_PCH_CPT(dev)) {
 		u32 sel;
 		temp = I915_READ(PCH_DPLL_SEL);
 		temp |= TRANS_DPLL_ENABLE(pipe);
 		sel = TRANS_DPLLB_SEL(pipe);
 		if (intel_crtc->config.shared_dpll == DPLL_ID_PCH_PLL_B)
 			temp |= sel;
 		else
 			temp &= ~sel;
 		I915_WRITE(PCH_DPLL_SEL, temp);
+	}
 	/* XXX: pch pll's can be enabled any time before we enable the PCH
 	 * transcoder, and we actually should do this to not upset any PCH
 	 * transcoder that already use the clock when we share it.
+	 *
 	 * Note that enable_shared_dpll tries to do the right thing, but
 	 * get_shared_dpll unconditionally resets the pll - we need that to have
 	 * the right LVDS enable sequence. */
-	ironlake_enable_shared_dpll(intel_crtc);
+	intel_enable_shared_dpll(intel_crtc);
 	/* set transcoder timing, panel must allow it */
 	assert_panel_unlocked(dev_priv, pipe);
 	ironlake_pch_transcoder_set_timings(intel_crtc, pipe);
 	intel_fdi_normal_train(crtc);
 	/* For PCH DP, enable TRANS_DP_CTL */
 	if (HAS_PCH_CPT(dev) &&
 	    (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
 	     intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
 		u32 bpc = (I915_READ(PIPECONF(pipe)) & PIPECONF_BPC_MASK) >> 5;
 		reg = TRANS_DP_CTL(pipe);
 		temp = I915_READ(reg);
 		temp &= ~(TRANS_DP_PORT_SEL_MASK |
 			  TRANS_DP_SYNC_MASK |
 			  TRANS_DP_BPC_MASK);
 		temp |= (TRANS_DP_OUTPUT_ENABLE |
 			 TRANS_DP_ENH_FRAMING);
 		temp |= bpc << 9; /* same format but at 11:9 */
 		if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
 			temp |= TRANS_DP_HSYNC_ACTIVE_HIGH;
 		if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
 			temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
 		switch (intel_trans_dp_port_sel(crtc)) {
 		case PCH_DP_B:
 			temp |= TRANS_DP_PORT_SEL_B;
 			break;
 		case PCH_DP_C:
 			temp |= TRANS_DP_PORT_SEL_C;
 			break;
 		case PCH_DP_D:
 			temp |= TRANS_DP_PORT_SEL_D;
 			break;
 		default:
 			BUG();
+		}
 		I915_WRITE(reg, temp);
+	}
 	ironlake_enable_pch_transcoder(dev_priv, pipe);
+}
 static void lpt_pch_enable(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
 	assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
 	lpt_program_iclkip(crtc);
 	/* Set transcoder timing. */
 	ironlake_pch_transcoder_set_timings(intel_crtc, PIPE_A);
 	lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
+}
-static void intel_put_shared_dpll(struct intel_crtc *crtc)
+void intel_put_shared_dpll(struct intel_crtc *crtc)
+{
 	struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
 	if (pll == NULL)
 		return;
 	if (pll->refcount == 0) {
 		WARN(1, "bad %s refcount\n", pll->name);
 		return;
+	}
 	if (--pll->refcount == 0) {
 		WARN_ON(pll->on);
 		WARN_ON(pll->active);
+	}
 	crtc->config.shared_dpll = DPLL_ID_PRIVATE;
+}
-static struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc)
+struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc)
+{
 	struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
 	struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
 	enum intel_dpll_id i;
 	if (pll) {
 		DRM_DEBUG_KMS("CRTC:%d dropping existing %s\n",
 			      crtc->base.base.id, pll->name);
 		intel_put_shared_dpll(crtc);
+	}
 	if (HAS_PCH_IBX(dev_priv->dev)) {
 		/* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
 		i = (enum intel_dpll_id) crtc->pipe;
 		pll = &dev_priv->shared_dplls[i];
 		DRM_DEBUG_KMS("CRTC:%d using pre-allocated %s\n",
 			      crtc->base.base.id, pll->name);
+		WARN_ON(pll->refcount);
 		goto found;
+	}
 	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
 		pll = &dev_priv->shared_dplls[i];
 		/* Only want to check enabled timings first */
 		if (pll->refcount == 0)
 			continue;
 		if (memcmp(&crtc->config.dpll_hw_state, &pll->hw_state,
 			   sizeof(pll->hw_state)) == 0) {
 			DRM_DEBUG_KMS("CRTC:%d sharing existing %s (refcount %d, ative %d)\n",
 				      crtc->base.base.id,
 				      pll->name, pll->refcount, pll->active);
 			goto found;
+		}
+	}
 	/* Ok no matching timings, maybe there's a free one? */
 	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
 		pll = &dev_priv->shared_dplls[i];
 		if (pll->refcount == 0) {
 			DRM_DEBUG_KMS("CRTC:%d allocated %s\n",
 				      crtc->base.base.id, pll->name);
 			goto found;
+		}
+	}
 	return NULL;
 found:
+	if (pll->refcount == 0)
+		pll->hw_state = crtc->config.dpll_hw_state;
 	crtc->config.shared_dpll = i;
 	DRM_DEBUG_DRIVER("using %s for pipe %c\n", pll->name,
 			 pipe_name(crtc->pipe));
-	if (pll->active == 0) {
-		memcpy(&pll->hw_state, &crtc->config.dpll_hw_state,
-		       sizeof(pll->hw_state));
-		DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
-		WARN_ON(pll->on);
-		assert_shared_dpll_disabled(dev_priv, pll);
-		pll->mode_set(dev_priv, pll);
 	pll->refcount++;
 	return pll;
+}
 static void cpt_verify_modeset(struct drm_device *dev, int pipe)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int dslreg = PIPEDSL(pipe);
 	u32 temp;
 	temp = I915_READ(dslreg);
 	udelay(500);
 	if (wait_for(I915_READ(dslreg) != temp, 5)) {
 		if (wait_for(I915_READ(dslreg) != temp, 5))
 			DRM_ERROR("mode set failed: pipe %c stuck\n", pipe_name(pipe));
+	}
+}
 static void ironlake_pfit_enable(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe = crtc->pipe;
 	if (crtc->config.pch_pfit.enabled) {
 		/* Force use of hard-coded filter coefficients
 		 * as some pre-programmed values are broken,
 		 * e.g. x201.
 		 */
 		if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
 			I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
 						 PF_PIPE_SEL_IVB(pipe));
 		else
 			I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
 		I915_WRITE(PF_WIN_POS(pipe), crtc->config.pch_pfit.pos);
 		I915_WRITE(PF_WIN_SZ(pipe), crtc->config.pch_pfit.size);
+	}
+}
 static void intel_enable_planes(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	enum pipe pipe = to_intel_crtc(crtc)->pipe;
+	struct drm_plane *plane;
 	struct intel_plane *intel_plane;
+	drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
-	list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
+		intel_plane = to_intel_plane(plane);
 		if (intel_plane->pipe == pipe)
 			intel_plane_restore(&intel_plane->base);
+	}
+}
 static void intel_disable_planes(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	enum pipe pipe = to_intel_crtc(crtc)->pipe;
+	struct drm_plane *plane;
 	struct intel_plane *intel_plane;
+	drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
-	list_for_each_entry(intel_plane, &dev->mode_config.plane_list, base.head)
+		intel_plane = to_intel_plane(plane);
 		if (intel_plane->pipe == pipe)
 			intel_plane_disable(&intel_plane->base);
+	}
+}
 void hsw_enable_ips(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
-	struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	if (!crtc->config.ips_enabled)
 		return;
-	/* We can only enable IPS after we enable a plane and wait for a vblank.
-	 * We guarantee that the plane is enabled by calling intel_enable_ips
+	/* We can only enable IPS after we enable a plane and wait for a vblank */
-	 * only after intel_enable_plane. And intel_enable_plane already waits
+	intel_wait_for_vblank(dev, crtc->pipe);
 	 * for a vblank, so all we need to do here is to enable the IPS bit. */
 	assert_plane_enabled(dev_priv, crtc->plane);
-	if (IS_BROADWELL(crtc->base.dev)) {
+	if (IS_BROADWELL(dev)) {
 		mutex_lock(&dev_priv->rps.hw_lock);
 		WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000));
 		mutex_unlock(&dev_priv->rps.hw_lock);
 		/* Quoting Art Runyan: "its not safe to expect any particular
 		 * value in IPS_CTL bit 31 after enabling IPS through the
 		 * mailbox." Moreover, the mailbox may return a bogus state,
 		 * so we need to just enable it and continue on.
 		 */
 	} else {
 		I915_WRITE(IPS_CTL, IPS_ENABLE);
 		/* The bit only becomes 1 in the next vblank, so this wait here
 		 * is essentially intel_wait_for_vblank. If we don't have this
 		 * and don't wait for vblanks until the end of crtc_enable, then
 		 * the HW state readout code will complain that the expected
 		 * IPS_CTL value is not the one we read. */
 		if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50))
 			DRM_ERROR("Timed out waiting for IPS enable\n");
+	}
+}
 void hsw_disable_ips(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	if (!crtc->config.ips_enabled)
 		return;
 	assert_plane_enabled(dev_priv, crtc->plane);
-	if (IS_BROADWELL(crtc->base.dev)) {
+	if (IS_BROADWELL(dev)) {
 		mutex_lock(&dev_priv->rps.hw_lock);
 		WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0));
 		mutex_unlock(&dev_priv->rps.hw_lock);
+		/* wait for pcode to finish disabling IPS, which may take up to 42ms */
+		if (wait_for((I915_READ(IPS_CTL) & IPS_ENABLE) == 0, 42))
+			DRM_ERROR("Timed out waiting for IPS disable\n");
 	} else {
 		I915_WRITE(IPS_CTL, 0);
 		POSTING_READ(IPS_CTL);
+	}
 	/* We need to wait for a vblank before we can disable the plane. */
 	intel_wait_for_vblank(dev, crtc->pipe);
+}
 /** Loads the palette/gamma unit for the CRTC with the prepared values */
 static void intel_crtc_load_lut(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	enum pipe pipe = intel_crtc->pipe;
 	int palreg = PALETTE(pipe);
 	int i;
 	bool reenable_ips = false;
 	/* The clocks have to be on to load the palette. */
 	if (!crtc->enabled || !intel_crtc->active)
 		return;
 	if (!HAS_PCH_SPLIT(dev_priv->dev)) {
 		if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
 			assert_dsi_pll_enabled(dev_priv);
 		else
 			assert_pll_enabled(dev_priv, pipe);
+	}
 	/* use legacy palette for Ironlake */
-	if (HAS_PCH_SPLIT(dev))
+	if (!HAS_GMCH_DISPLAY(dev))
 		palreg = LGC_PALETTE(pipe);
 	/* Workaround : Do not read or write the pipe palette/gamma data while
 	 * GAMMA_MODE is configured for split gamma and IPS_CTL has IPS enabled.
 	 */
 	if (IS_HASWELL(dev) && intel_crtc->config.ips_enabled &&
 	    ((I915_READ(GAMMA_MODE(pipe)) & GAMMA_MODE_MODE_MASK) ==
 	     GAMMA_MODE_MODE_SPLIT)) {
 		hsw_disable_ips(intel_crtc);
 		reenable_ips = true;
+	}
 	for (i = 0; i < 256; i++) {
 		I915_WRITE(palreg + 4 * i,
 			   (intel_crtc->lut_r[i] << 16) |
 			   (intel_crtc->lut_g[i] << 8) |
 			   intel_crtc->lut_b[i]);
+	}
 	if (reenable_ips)
 		hsw_enable_ips(intel_crtc);
+}
+static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
+{
+	if (!enable && intel_crtc->overlay) {
+		struct drm_device *dev = intel_crtc->base.dev;
+		struct drm_i915_private *dev_priv = dev->dev_private;
+		mutex_lock(&dev->struct_mutex);
+		dev_priv->mm.interruptible = false;
+        dev_priv->mm.interruptible = true;
+		mutex_unlock(&dev->struct_mutex);
+	}
+	/* Let userspace switch the overlay on again. In most cases userspace
+	 * has to recompute where to put it anyway.
+	 */
+}
+static void intel_crtc_enable_planes(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	int pipe = intel_crtc->pipe;
+	int plane = intel_crtc->plane;
+	drm_vblank_on(dev, pipe);
+	intel_enable_primary_hw_plane(dev_priv, plane, pipe);
+	intel_enable_planes(crtc);
+	intel_crtc_update_cursor(crtc, true);
+	intel_crtc_dpms_overlay(intel_crtc, true);
+	hsw_enable_ips(intel_crtc);
+	mutex_lock(&dev->struct_mutex);
+	intel_update_fbc(dev);
+	mutex_unlock(&dev->struct_mutex);
+}
+static void intel_crtc_disable_planes(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	int pipe = intel_crtc->pipe;
+	int plane = intel_crtc->plane;
+	if (dev_priv->fbc.plane == plane)
+		intel_disable_fbc(dev);
+	hsw_disable_ips(intel_crtc);
+	intel_crtc_dpms_overlay(intel_crtc, false);
+	intel_crtc_update_cursor(crtc, false);
+	intel_disable_planes(crtc);
+	intel_disable_primary_hw_plane(dev_priv, plane, pipe);
+	drm_vblank_off(dev, pipe);
+}
 static void ironlake_crtc_enable(struct drm_crtc *crtc)
+{
     struct drm_device *dev = crtc->dev;
     struct drm_i915_private *dev_priv = dev->dev_private;
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_encoder *encoder;
     int pipe = intel_crtc->pipe;
-    int plane = intel_crtc->plane;
+	enum plane plane = intel_crtc->plane;
 	WARN_ON(!crtc->enabled);
     if (intel_crtc->active)
         return;
+	if (intel_crtc->config.has_pch_encoder)
+		intel_prepare_shared_dpll(intel_crtc);
+	if (intel_crtc->config.has_dp_encoder)
+		intel_dp_set_m_n(intel_crtc);
+	intel_set_pipe_timings(intel_crtc);
+	if (intel_crtc->config.has_pch_encoder) {
+		intel_cpu_transcoder_set_m_n(intel_crtc,
+					     &intel_crtc->config.fdi_m_n);
+	}
+	ironlake_set_pipeconf(crtc);
+	/* Set up the display plane register */
+	I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
+	POSTING_READ(DSPCNTR(plane));
+	dev_priv->display.update_primary_plane(crtc, crtc->primary->fb,
+					       crtc->x, crtc->y);
     intel_crtc->active = true;
 	intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
 	intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		if (encoder->pre_enable)
 			encoder->pre_enable(encoder);
 	if (intel_crtc->config.has_pch_encoder) {
 		/* Note: FDI PLL enabling _must_ be done before we enable the
 		 * cpu pipes, hence this is separate from all the other fdi/pch
 		 * enabling. */
 		ironlake_fdi_pll_enable(intel_crtc);
 	} else {
 		assert_fdi_tx_disabled(dev_priv, pipe);
 		assert_fdi_rx_disabled(dev_priv, pipe);
+	}
 	ironlake_pfit_enable(intel_crtc);
     /*
      * On ILK+ LUT must be loaded before the pipe is running but with
      * clocks enabled
      */
     intel_crtc_load_lut(crtc);
 	intel_update_watermarks(crtc);
-	intel_enable_pipe(dev_priv, pipe,
-			  intel_crtc->config.has_pch_encoder, false);
-	intel_enable_primary_plane(dev_priv, plane, pipe);
-	intel_enable_planes(crtc);
+	intel_enable_pipe(intel_crtc);
-	intel_crtc_update_cursor(crtc, true);
 	if (intel_crtc->config.has_pch_encoder)
         ironlake_pch_enable(crtc);
-    mutex_lock(&dev->struct_mutex);
-    intel_update_fbc(dev);
-    mutex_unlock(&dev->struct_mutex);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		encoder->enable(encoder);
 	if (HAS_PCH_CPT(dev))
 		cpt_verify_modeset(dev, intel_crtc->pipe);
-	/*
-	 * There seems to be a race in PCH platform hw (at least on some
-	 * outputs) where an enabled pipe still completes any pageflip right
-	 * away (as if the pipe is off) instead of waiting for vblank. As soon
-	 * as the first vblank happend, everything works as expected. Hence just
-	 * wait for one vblank before returning to avoid strange things
-	 * happening.
-	 */
-	intel_wait_for_vblank(dev, intel_crtc->pipe);
+	intel_crtc_enable_planes(crtc);
+}
 /* IPS only exists on ULT machines and is tied to pipe A. */
 static bool hsw_crtc_supports_ips(struct intel_crtc *crtc)
+{
 	return HAS_IPS(crtc->base.dev) && crtc->pipe == PIPE_A;
+}
-static void haswell_crtc_enable_planes(struct drm_crtc *crtc)
-{
-	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int pipe = intel_crtc->pipe;
-	int plane = intel_crtc->plane;
-	intel_enable_primary_plane(dev_priv, plane, pipe);
-	intel_enable_planes(crtc);
-	intel_crtc_update_cursor(crtc, true);
-	hsw_enable_ips(intel_crtc);
-	mutex_lock(&dev->struct_mutex);
-	intel_update_fbc(dev);
-	mutex_unlock(&dev->struct_mutex);
-}
-static void haswell_crtc_disable_planes(struct drm_crtc *crtc)
-{
-	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int pipe = intel_crtc->pipe;
-	int plane = intel_crtc->plane;
-//   intel_crtc_wait_for_pending_flips(crtc);
-//   drm_vblank_off(dev, pipe);
-	/* FBC must be disabled before disabling the plane on HSW. */
-	if (dev_priv->fbc.plane == plane)
-		intel_disable_fbc(dev);
-	hsw_disable_ips(intel_crtc);
-	intel_crtc_update_cursor(crtc, false);
-	intel_disable_planes(crtc);
-	intel_disable_primary_plane(dev_priv, plane, pipe);
-}
 /*
  * This implements the workaround described in the "notes" section of the mode
  * set sequence documentation. When going from no pipes or single pipe to
  * multiple pipes, and planes are enabled after the pipe, we need to wait at
  * least 2 vblanks on the first pipe before enabling planes on the second pipe.
  */
 static void haswell_mode_set_planes_workaround(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct intel_crtc *crtc_it, *other_active_crtc = NULL;
 	/* We want to get the other_active_crtc only if there's only 1 other
 	 * active crtc. */
-	list_for_each_entry(crtc_it, &dev->mode_config.crtc_list, base.head) {
+	for_each_intel_crtc(dev, crtc_it) {
 		if (!crtc_it->active || crtc_it == crtc)
 			continue;
 		if (other_active_crtc)
 		return;
 		other_active_crtc = crtc_it;
+	}
 	if (!other_active_crtc)
 		return;
 	intel_wait_for_vblank(dev, other_active_crtc->pipe);
 	intel_wait_for_vblank(dev, other_active_crtc->pipe);
+}
 static void haswell_crtc_enable(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_encoder *encoder;
 	int pipe = intel_crtc->pipe;
+	enum plane plane = intel_crtc->plane;
 	WARN_ON(!crtc->enabled);
 	if (intel_crtc->active)
 		return;
+	if (intel_crtc_to_shared_dpll(intel_crtc))
-	intel_crtc->active = true;
+		intel_enable_shared_dpll(intel_crtc);
-	intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
+	if (intel_crtc->config.has_dp_encoder)
+		intel_dp_set_m_n(intel_crtc);
-	if (intel_crtc->config.has_pch_encoder)
+	intel_set_pipe_timings(intel_crtc);
+	if (intel_crtc->config.has_pch_encoder) {
+		intel_cpu_transcoder_set_m_n(intel_crtc,
+					     &intel_crtc->config.fdi_m_n);
+	}
+	haswell_set_pipeconf(crtc);
+	intel_set_pipe_csc(crtc);
+	/* Set up the display plane register */
-		intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
+	I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
+	POSTING_READ(DSPCNTR(plane));
+	dev_priv->display.update_primary_plane(crtc, crtc->primary->fb,
+					       crtc->x, crtc->y);
-	if (intel_crtc->config.has_pch_encoder)
+	intel_crtc->active = true;
 		dev_priv->display.fdi_link_train(crtc);
 	intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		if (encoder->pre_enable)
 			encoder->pre_enable(encoder);
+	if (intel_crtc->config.has_pch_encoder) {
+		intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
+		dev_priv->display.fdi_link_train(crtc);
+	}
 	intel_ddi_enable_pipe_clock(intel_crtc);
 	ironlake_pfit_enable(intel_crtc);
 	/*
 	 * On ILK+ LUT must be loaded before the pipe is running but with
 	 * clocks enabled
 	 */
 	intel_crtc_load_lut(crtc);
 	intel_ddi_set_pipe_settings(crtc);
 	intel_ddi_enable_transcoder_func(crtc);
 	intel_update_watermarks(crtc);
-	intel_enable_pipe(dev_priv, pipe,
+	intel_enable_pipe(intel_crtc);
-			  intel_crtc->config.has_pch_encoder, false);
 	if (intel_crtc->config.has_pch_encoder)
 		lpt_pch_enable(crtc);
+	if (intel_crtc->config.dp_encoder_is_mst)
+		intel_ddi_set_vc_payload_alloc(crtc, true);
 	for_each_encoder_on_crtc(dev, crtc, encoder) {
 		encoder->enable(encoder);
 		intel_opregion_notify_encoder(encoder, true);
+	}
 	/* If we change the relative order between pipe/planes enabling, we need
 	 * to change the workaround. */
 	haswell_mode_set_planes_workaround(intel_crtc);
-	haswell_crtc_enable_planes(crtc);
+	intel_crtc_enable_planes(crtc);
-	/*
-	 * There seems to be a race in PCH platform hw (at least on some
-	 * outputs) where an enabled pipe still completes any pageflip right
-	 * away (as if the pipe is off) instead of waiting for vblank. As soon
-	 * as the first vblank happend, everything works as expected. Hence just
-	 * wait for one vblank before returning to avoid strange things
-	 * happening.
-	 */
-	intel_wait_for_vblank(dev, intel_crtc->pipe);
+}
 static void ironlake_pfit_disable(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe = crtc->pipe;
 	/* To avoid upsetting the power well on haswell only disable the pfit if
 	 * it's in use. The hw state code will make sure we get this right. */
 	if (crtc->config.pch_pfit.enabled) {
 		I915_WRITE(PF_CTL(pipe), 0);
 		I915_WRITE(PF_WIN_POS(pipe), 0);
 		I915_WRITE(PF_WIN_SZ(pipe), 0);
+	}
+}
 static void ironlake_crtc_disable(struct drm_crtc *crtc)
+{
     struct drm_device *dev = crtc->dev;
     struct drm_i915_private *dev_priv = dev->dev_private;
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_encoder *encoder;
     int pipe = intel_crtc->pipe;
-    int plane = intel_crtc->plane;
     u32 reg, temp;
     if (!intel_crtc->active)
         return;
+	intel_crtc_disable_planes(crtc);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		encoder->disable(encoder);
-//    intel_crtc_wait_for_pending_flips(crtc);
-//    drm_vblank_off(dev, pipe);
-	if (dev_priv->fbc.plane == plane)
-		intel_disable_fbc(dev);
-	intel_crtc_update_cursor(crtc, false);
-	intel_disable_planes(crtc);
-	intel_disable_primary_plane(dev_priv, plane, pipe);
 	if (intel_crtc->config.has_pch_encoder)
 		intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
     intel_disable_pipe(dev_priv, pipe);
+	if (intel_crtc->config.dp_encoder_is_mst)
+		intel_ddi_set_vc_payload_alloc(crtc, false);
 	ironlake_pfit_disable(intel_crtc);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		if (encoder->post_disable)
 			encoder->post_disable(encoder);
 	if (intel_crtc->config.has_pch_encoder) {
     ironlake_fdi_disable(crtc);
 	ironlake_disable_pch_transcoder(dev_priv, pipe);
 		intel_set_pch_fifo_underrun_reporting(dev, pipe, true);
     if (HAS_PCH_CPT(dev)) {
         /* disable TRANS_DP_CTL */
         reg = TRANS_DP_CTL(pipe);
         temp = I915_READ(reg);
 			temp &= ~(TRANS_DP_OUTPUT_ENABLE |
 				  TRANS_DP_PORT_SEL_MASK);
         temp |= TRANS_DP_PORT_SEL_NONE;
         I915_WRITE(reg, temp);
         /* disable DPLL_SEL */
         temp = I915_READ(PCH_DPLL_SEL);
 			temp &= ~(TRANS_DPLL_ENABLE(pipe) | TRANS_DPLLB_SEL(pipe));
         I915_WRITE(PCH_DPLL_SEL, temp);
+    }
     /* disable PCH DPLL */
 		intel_disable_shared_dpll(intel_crtc);
 	ironlake_fdi_pll_disable(intel_crtc);
+	}
     intel_crtc->active = false;
 	intel_update_watermarks(crtc);
     mutex_lock(&dev->struct_mutex);
     intel_update_fbc(dev);
     mutex_unlock(&dev->struct_mutex);
+}
 static void haswell_crtc_disable(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_encoder *encoder;
 	int pipe = intel_crtc->pipe;
 	enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
 	if (!intel_crtc->active)
 		return;
-	haswell_crtc_disable_planes(crtc);
+	intel_crtc_disable_planes(crtc);
 	for_each_encoder_on_crtc(dev, crtc, encoder) {
 		intel_opregion_notify_encoder(encoder, false);
 		encoder->disable(encoder);
+	}
 	if (intel_crtc->config.has_pch_encoder)
 		intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, false);
 	intel_disable_pipe(dev_priv, pipe);
 	intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
 	ironlake_pfit_disable(intel_crtc);
 	intel_ddi_disable_pipe_clock(intel_crtc);
-	for_each_encoder_on_crtc(dev, crtc, encoder)
-		if (encoder->post_disable)
-			encoder->post_disable(encoder);
 	if (intel_crtc->config.has_pch_encoder) {
 		lpt_disable_pch_transcoder(dev_priv);
 		intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A, true);
 		intel_ddi_fdi_disable(crtc);
+	}
+	for_each_encoder_on_crtc(dev, crtc, encoder)
+		if (encoder->post_disable)
+			encoder->post_disable(encoder);
 	intel_crtc->active = false;
 	intel_update_watermarks(crtc);
 	mutex_lock(&dev->struct_mutex);
 	intel_update_fbc(dev);
 	mutex_unlock(&dev->struct_mutex);
+	if (intel_crtc_to_shared_dpll(intel_crtc))
+		intel_disable_shared_dpll(intel_crtc);
+}
 static void ironlake_crtc_off(struct drm_crtc *crtc)
+{
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	intel_put_shared_dpll(intel_crtc);
+}
-static void haswell_crtc_off(struct drm_crtc *crtc)
-{
-	intel_ddi_put_crtc_pll(crtc);
-}
-static void intel_crtc_dpms_overlay(struct intel_crtc *intel_crtc, bool enable)
-{
-	if (!enable && intel_crtc->overlay) {
-		struct drm_device *dev = intel_crtc->base.dev;
-		struct drm_i915_private *dev_priv = dev->dev_private;
-		mutex_lock(&dev->struct_mutex);
-		dev_priv->mm.interruptible = false;
-//       (void) intel_overlay_switch_off(intel_crtc->overlay);
-		dev_priv->mm.interruptible = true;
-		mutex_unlock(&dev->struct_mutex);
-	}
-	/* Let userspace switch the overlay on again. In most cases userspace
-	 * has to recompute where to put it anyway.
-	 */
-}
-/**
- * i9xx_fixup_plane - ugly workaround for G45 to fire up the hardware
- * cursor plane briefly if not already running after enabling the display
- * plane.
- * This workaround avoids occasional blank screens when self refresh is
- * enabled.
- */
-static void
-g4x_fixup_plane(struct drm_i915_private *dev_priv, enum pipe pipe)
-{
-	u32 cntl = I915_READ(CURCNTR(pipe));
-	if ((cntl & CURSOR_MODE) == 0) {
-		u32 fw_bcl_self = I915_READ(FW_BLC_SELF);
-		I915_WRITE(FW_BLC_SELF, fw_bcl_self & ~FW_BLC_SELF_EN);
-		I915_WRITE(CURCNTR(pipe), CURSOR_MODE_64_ARGB_AX);
-		intel_wait_for_vblank(dev_priv->dev, pipe);
-		I915_WRITE(CURCNTR(pipe), cntl);
-		I915_WRITE(CURBASE(pipe), I915_READ(CURBASE(pipe)));
-		I915_WRITE(FW_BLC_SELF, fw_bcl_self);
-	}
 static void i9xx_pfit_enable(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc_config *pipe_config = &crtc->config;
 	if (!crtc->config.gmch_pfit.control)
 		return;
 	/*
 	 * The panel fitter should only be adjusted whilst the pipe is disabled,
 	 * according to register description and PRM.
 	 */
 	WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
 	assert_pipe_disabled(dev_priv, crtc->pipe);
 	I915_WRITE(PFIT_PGM_RATIOS, pipe_config->gmch_pfit.pgm_ratios);
 	I915_WRITE(PFIT_CONTROL, pipe_config->gmch_pfit.control);
 	/* Border color in case we don't scale up to the full screen. Black by
 	 * default, change to something else for debugging. */
 	I915_WRITE(BCLRPAT(crtc->pipe), 0);
+}
+static enum intel_display_power_domain port_to_power_domain(enum port port)
+{
+	switch (port) {
+	case PORT_A:
+		return POWER_DOMAIN_PORT_DDI_A_4_LANES;
+	case PORT_B:
+		return POWER_DOMAIN_PORT_DDI_B_4_LANES;
+	case PORT_C:
+		return POWER_DOMAIN_PORT_DDI_C_4_LANES;
+	case PORT_D:
+		return POWER_DOMAIN_PORT_DDI_D_4_LANES;
+	default:
+		WARN_ON_ONCE(1);
+		return POWER_DOMAIN_PORT_OTHER;
+	}
+}
+#define for_each_power_domain(domain, mask)				\
+	for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++)	\
+		if ((1 << (domain)) & (mask))
+enum intel_display_power_domain
+intel_display_port_power_domain(struct intel_encoder *intel_encoder)
+{
+	struct drm_device *dev = intel_encoder->base.dev;
+	struct intel_digital_port *intel_dig_port;
+	switch (intel_encoder->type) {
+	case INTEL_OUTPUT_UNKNOWN:
+		/* Only DDI platforms should ever use this output type */
+		WARN_ON_ONCE(!HAS_DDI(dev));
+	case INTEL_OUTPUT_DISPLAYPORT:
+	case INTEL_OUTPUT_HDMI:
+	case INTEL_OUTPUT_EDP:
+		intel_dig_port = enc_to_dig_port(&intel_encoder->base);
+		return port_to_power_domain(intel_dig_port->port);
+	case INTEL_OUTPUT_DP_MST:
+		intel_dig_port = enc_to_mst(&intel_encoder->base)->primary;
+		return port_to_power_domain(intel_dig_port->port);
+	case INTEL_OUTPUT_ANALOG:
+		return POWER_DOMAIN_PORT_CRT;
+	case INTEL_OUTPUT_DSI:
+		return POWER_DOMAIN_PORT_DSI;
+	default:
+		return POWER_DOMAIN_PORT_OTHER;
+	}
+}
+static unsigned long get_crtc_power_domains(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct intel_encoder *intel_encoder;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	enum pipe pipe = intel_crtc->pipe;
+	unsigned long mask;
+	enum transcoder transcoder;
+	transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe);
+	mask = BIT(POWER_DOMAIN_PIPE(pipe));
+	mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder));
+	if (intel_crtc->config.pch_pfit.enabled ||
+	    intel_crtc->config.pch_pfit.force_thru)
+		mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe));
+	for_each_encoder_on_crtc(dev, crtc, intel_encoder)
+		mask |= BIT(intel_display_port_power_domain(intel_encoder));
+	return mask;
+}
+void intel_display_set_init_power(struct drm_i915_private *dev_priv,
+				  bool enable)
+{
+	if (dev_priv->power_domains.init_power_on == enable)
+		return;
+	if (enable)
+		intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
+	else
+		intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
+	dev_priv->power_domains.init_power_on = enable;
+}
+static void modeset_update_crtc_power_domains(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	unsigned long pipe_domains[I915_MAX_PIPES] = { 0, };
+	struct intel_crtc *crtc;
+	/*
+	 * First get all needed power domains, then put all unneeded, to avoid
+	 * any unnecessary toggling of the power wells.
+	 */
+	for_each_intel_crtc(dev, crtc) {
+		enum intel_display_power_domain domain;
+		if (!crtc->base.enabled)
+			continue;
+		pipe_domains[crtc->pipe] = get_crtc_power_domains(&crtc->base);
+		for_each_power_domain(domain, pipe_domains[crtc->pipe])
+			intel_display_power_get(dev_priv, domain);
+	}
+	for_each_intel_crtc(dev, crtc) {
+		enum intel_display_power_domain domain;
+		for_each_power_domain(domain, crtc->enabled_power_domains)
+			intel_display_power_put(dev_priv, domain);
+		crtc->enabled_power_domains = pipe_domains[crtc->pipe];
+	}
+	intel_display_set_init_power(dev_priv, false);
+}
+/* returns HPLL frequency in kHz */
-int valleyview_get_vco(struct drm_i915_private *dev_priv)
+static int valleyview_get_vco(struct drm_i915_private *dev_priv)
+{
 	int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 };
 	/* Obtain SKU information */
 	mutex_lock(&dev_priv->dpio_lock);
 	hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) &
 		CCK_FUSE_HPLL_FREQ_MASK;
 	mutex_unlock(&dev_priv->dpio_lock);
+	return vco_freq[hpll_freq] * 1000;
+}
+static void vlv_update_cdclk(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	dev_priv->vlv_cdclk_freq = dev_priv->display.get_display_clock_speed(dev);
+	DRM_DEBUG_DRIVER("Current CD clock rate: %d kHz",
+			 dev_priv->vlv_cdclk_freq);
+	/*
+	 * Program the gmbus_freq based on the cdclk frequency.
+	 * BSpec erroneously claims we should aim for 4MHz, but
+	 * in fact 1MHz is the correct frequency.
+	 */
-	return vco_freq[hpll_freq];
+	I915_WRITE(GMBUSFREQ_VLV, dev_priv->vlv_cdclk_freq);
+}
 /* Adjust CDclk dividers to allow high res or save power if possible */
 static void valleyview_set_cdclk(struct drm_device *dev, int cdclk)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 val, cmd;
+	WARN_ON(dev_priv->display.get_display_clock_speed(dev) != dev_priv->vlv_cdclk_freq);
-	if (cdclk >= 320) /* jump to highest voltage for 400MHz too */
+	if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */
 		cmd = 2;
-	else if (cdclk == 266)
+	else if (cdclk == 266667)
 		cmd = 1;
 	else
 		cmd = 0;
 	mutex_lock(&dev_priv->rps.hw_lock);
 	val = vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ);
 	val &= ~DSPFREQGUAR_MASK;
 	val |= (cmd << DSPFREQGUAR_SHIFT);
 	vlv_punit_write(dev_priv, PUNIT_REG_DSPFREQ, val);
 	if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DSPFREQ) &
 		      DSPFREQSTAT_MASK) == (cmd << DSPFREQSTAT_SHIFT),
 )) {
 		DRM_ERROR("timed out waiting for CDclk change\n");
+	}
 	mutex_unlock(&dev_priv->rps.hw_lock);
-	if (cdclk == 400) {
+	if (cdclk == 400000) {
 		u32 divider, vco;
 		vco = valleyview_get_vco(dev_priv);
-		divider = ((vco << 1) / cdclk) - 1;
+		divider = DIV_ROUND_CLOSEST(vco << 1, cdclk) - 1;
 		mutex_lock(&dev_priv->dpio_lock);
 		/* adjust cdclk divider */
 		val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
-		val &= ~0xf;
+		val &= ~DISPLAY_FREQUENCY_VALUES;
 		val |= divider;
 		vlv_cck_write(dev_priv, CCK_DISPLAY_CLOCK_CONTROL, val);
+		if (wait_for((vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL) &
+			      DISPLAY_FREQUENCY_STATUS) == (divider << DISPLAY_FREQUENCY_STATUS_SHIFT),
+))
+			DRM_ERROR("timed out waiting for CDclk change\n");
 		mutex_unlock(&dev_priv->dpio_lock);
+	}
 	mutex_lock(&dev_priv->dpio_lock);
 	/* adjust self-refresh exit latency value */
 	val = vlv_bunit_read(dev_priv, BUNIT_REG_BISOC);
 	val &= ~0x7f;
 	/*
 	 * For high bandwidth configs, we set a higher latency in the bunit
 	 * so that the core display fetch happens in time to avoid underruns.
 	 */
-	if (cdclk == 400)
+	if (cdclk == 400000)
 		val |= 4500 / 250; /* 4.5 usec */
 	else
 		val |= 3000 / 250; /* 3.0 usec */
 	vlv_bunit_write(dev_priv, BUNIT_REG_BISOC, val);
 	mutex_unlock(&dev_priv->dpio_lock);
-	/* Since we changed the CDclk, we need to update the GMBUSFREQ too */
-	intel_i2c_reset(dev);
-}
-static int valleyview_cur_cdclk(struct drm_i915_private *dev_priv)
-{
-	int cur_cdclk, vco;
-	int divider;
-	vco = valleyview_get_vco(dev_priv);
-	mutex_lock(&dev_priv->dpio_lock);
-	divider = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
-	mutex_unlock(&dev_priv->dpio_lock);
-	divider &= 0xf;
-	cur_cdclk = (vco << 1) / (divider + 1);
-	return cur_cdclk;
+	vlv_update_cdclk(dev);
+}
 static int valleyview_calc_cdclk(struct drm_i915_private *dev_priv,
 				 int max_pixclk)
+{
-	int cur_cdclk;
-	cur_cdclk = valleyview_cur_cdclk(dev_priv);
+	int vco = valleyview_get_vco(dev_priv);
+	int freq_320 = (vco <<  1) % 320000 != 0 ? 333333 : 320000;
 	/*
 	 * Really only a few cases to deal with, as only 4 CDclks are supported:
 	 *   200MHz
 	 *   267MHz
-	 *   320MHz
+	 *   320/333MHz (depends on HPLL freq)
 	 *   400MHz
 	 * So we check to see whether we're above 90% of the lower bin and
 	 * adjust if needed.
+	 *
+	 * We seem to get an unstable or solid color picture at 200MHz.
+	 * Not sure what's wrong. For now use 200MHz only when all pipes
+	 * are off.
 	 */
-	if (max_pixclk > 288000) {
+	if (max_pixclk > freq_320*9/10)
-		return 400;
+		return 400000;
-	} else if (max_pixclk > 240000) {
+	else if (max_pixclk > 266667*9/10)
-		return 320;
+		return freq_320;
+	else if (max_pixclk > 0)
+		return 266667;
-	} else
+	else
-		return 266;
+		return 200000;
-	/* Looks like the 200MHz CDclk freq doesn't work on some configs */
+}
+/* compute the max pixel clock for new configuration */
-static int intel_mode_max_pixclk(struct drm_i915_private *dev_priv,
-				 unsigned modeset_pipes,
-				 struct intel_crtc_config *pipe_config)
+static int intel_mode_max_pixclk(struct drm_i915_private *dev_priv)
+{
 	struct drm_device *dev = dev_priv->dev;
 	struct intel_crtc *intel_crtc;
 	int max_pixclk = 0;
-	list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
-			    base.head) {
-		if (modeset_pipes & (1 << intel_crtc->pipe))
-			max_pixclk = max(max_pixclk,
-					 pipe_config->adjusted_mode.crtc_clock);
+	for_each_intel_crtc(dev, intel_crtc) {
-		else if (intel_crtc->base.enabled)
+		if (intel_crtc->new_enabled)
 			max_pixclk = max(max_pixclk,
-					 intel_crtc->config.adjusted_mode.crtc_clock);
+					 intel_crtc->new_config->adjusted_mode.crtc_clock);
+	}
 	return max_pixclk;
+}
 static void valleyview_modeset_global_pipes(struct drm_device *dev,
-					    unsigned *prepare_pipes,
+					    unsigned *prepare_pipes)
-					    unsigned modeset_pipes,
-					    struct intel_crtc_config *pipe_config)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc;
-	int max_pixclk = intel_mode_max_pixclk(dev_priv, modeset_pipes,
+	int max_pixclk = intel_mode_max_pixclk(dev_priv);
-					       pipe_config);
-	int cur_cdclk = valleyview_cur_cdclk(dev_priv);
+	if (valleyview_calc_cdclk(dev_priv, max_pixclk) ==
-	if (valleyview_calc_cdclk(dev_priv, max_pixclk) == cur_cdclk)
+	    dev_priv->vlv_cdclk_freq)
 		return;
-	list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
+	/* disable/enable all currently active pipes while we change cdclk */
-			    base.head)
+	for_each_intel_crtc(dev, intel_crtc)
 		if (intel_crtc->base.enabled)
 			*prepare_pipes |= (1 << intel_crtc->pipe);
+}
 static void valleyview_modeset_global_resources(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	int max_pixclk = intel_mode_max_pixclk(dev_priv, 0, NULL);
+	int max_pixclk = intel_mode_max_pixclk(dev_priv);
-	int cur_cdclk = valleyview_cur_cdclk(dev_priv);
 	int req_cdclk = valleyview_calc_cdclk(dev_priv, max_pixclk);
-	if (req_cdclk != cur_cdclk)
+	if (req_cdclk != dev_priv->vlv_cdclk_freq)
+		valleyview_set_cdclk(dev, req_cdclk);
-		valleyview_set_cdclk(dev, req_cdclk);
+	modeset_update_crtc_power_domains(dev);
+}
 static void valleyview_crtc_enable(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_encoder *encoder;
 	int pipe = intel_crtc->pipe;
 	int plane = intel_crtc->plane;
 	bool is_dsi;
+	u32 dspcntr;
 	WARN_ON(!crtc->enabled);
 	if (intel_crtc->active)
 		return;
+	is_dsi = intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI);
+	if (!is_dsi && !IS_CHERRYVIEW(dev))
+	vlv_prepare_pll(intel_crtc);
+	/* Set up the display plane register */
+	dspcntr = DISPPLANE_GAMMA_ENABLE;
+	if (intel_crtc->config.has_dp_encoder)
+		intel_dp_set_m_n(intel_crtc);
+	intel_set_pipe_timings(intel_crtc);
+	/* pipesrc and dspsize control the size that is scaled from,
+	 * which should always be the user's requested size.
+	 */
+	I915_WRITE(DSPSIZE(plane),
+		   ((intel_crtc->config.pipe_src_h - 1) << 16) |
+		   (intel_crtc->config.pipe_src_w - 1));
+	I915_WRITE(DSPPOS(plane), 0);
+	i9xx_set_pipeconf(intel_crtc);
+	I915_WRITE(DSPCNTR(plane), dspcntr);
+	POSTING_READ(DSPCNTR(plane));
+	dev_priv->display.update_primary_plane(crtc, crtc->primary->fb,
+					       crtc->x, crtc->y);
+	intel_crtc->active = true;
-	intel_crtc->active = true;
+	intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		if (encoder->pre_pll_enable)
 			encoder->pre_pll_enable(encoder);
-	is_dsi = intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI);
+	if (!is_dsi) {
+		if (IS_CHERRYVIEW(dev))
+			chv_enable_pll(intel_crtc);
-	if (!is_dsi)
+		else
+	vlv_enable_pll(intel_crtc);
 	vlv_enable_pll(intel_crtc);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		if (encoder->pre_enable)
 			encoder->pre_enable(encoder);
 	i9xx_pfit_enable(intel_crtc);
 	intel_crtc_load_lut(crtc);
 	intel_update_watermarks(crtc);
-	intel_enable_pipe(dev_priv, pipe, false, is_dsi);
-	intel_enable_primary_plane(dev_priv, plane, pipe);
-	intel_enable_planes(crtc);
+	intel_enable_pipe(intel_crtc);
-	intel_crtc_update_cursor(crtc, true);
-	intel_update_fbc(dev);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		encoder->enable(encoder);
+	intel_crtc_enable_planes(crtc);
+	/* Underruns don't raise interrupts, so check manually. */
+	i9xx_check_fifo_underruns(dev);
+}
+static void i9xx_set_pll_dividers(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	I915_WRITE(FP0(crtc->pipe), crtc->config.dpll_hw_state.fp0);
+	I915_WRITE(FP1(crtc->pipe), crtc->config.dpll_hw_state.fp1);
+}
 static void i9xx_crtc_enable(struct drm_crtc *crtc)
+{
     struct drm_device *dev = crtc->dev;
     struct drm_i915_private *dev_priv = dev->dev_private;
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_encoder *encoder;
     int pipe = intel_crtc->pipe;
     int plane = intel_crtc->plane;
+	u32 dspcntr;
 	WARN_ON(!crtc->enabled);
     if (intel_crtc->active)
         return;
+	i9xx_set_pll_dividers(intel_crtc);
+	/* Set up the display plane register */
+	dspcntr = DISPPLANE_GAMMA_ENABLE;
+	if (pipe == 0)
+		dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
+	else
+		dspcntr |= DISPPLANE_SEL_PIPE_B;
+	if (intel_crtc->config.has_dp_encoder)
+		intel_dp_set_m_n(intel_crtc);
+	intel_set_pipe_timings(intel_crtc);
+	/* pipesrc and dspsize control the size that is scaled from,
+	 * which should always be the user's requested size.
+	 */
+	I915_WRITE(DSPSIZE(plane),
+		   ((intel_crtc->config.pipe_src_h - 1) << 16) |
+		   (intel_crtc->config.pipe_src_w - 1));
+	I915_WRITE(DSPPOS(plane), 0);
+	i9xx_set_pipeconf(intel_crtc);
+	I915_WRITE(DSPCNTR(plane), dspcntr);
+	POSTING_READ(DSPCNTR(plane));
+	dev_priv->display.update_primary_plane(crtc, crtc->primary->fb,
+					       crtc->x, crtc->y);
+    intel_crtc->active = true;
+	if (!IS_GEN2(dev))
-    intel_crtc->active = true;
+		intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		if (encoder->pre_enable)
 			encoder->pre_enable(encoder);
 	i9xx_enable_pll(intel_crtc);
 	i9xx_pfit_enable(intel_crtc);
 	intel_crtc_load_lut(crtc);
 	intel_update_watermarks(crtc);
-	intel_enable_pipe(dev_priv, pipe, false, false);
-	intel_enable_primary_plane(dev_priv, plane, pipe);
-	intel_enable_planes(crtc);
+	intel_enable_pipe(intel_crtc);
-	/* The fixup needs to happen before cursor is enabled */
-	if (IS_G4X(dev))
-		g4x_fixup_plane(dev_priv, pipe);
-	intel_crtc_update_cursor(crtc, true);
-    /* Give the overlay scaler a chance to enable if it's on this pipe */
-    intel_crtc_dpms_overlay(intel_crtc, true);
-	intel_update_fbc(dev);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		encoder->enable(encoder);
+	intel_crtc_enable_planes(crtc);
+	/*
+	 * Gen2 reports pipe underruns whenever all planes are disabled.
+	 * So don't enable underrun reporting before at least some planes
+	 * are enabled.
+	 * FIXME: Need to fix the logic to work when we turn off all planes
+	 * but leave the pipe running.
+	 */
+	if (IS_GEN2(dev))
+	intel_set_cpu_fifo_underrun_reporting(dev, pipe, true);
+	/* Underruns don't raise interrupts, so check manually. */
+	i9xx_check_fifo_underruns(dev);
+}
 static void i9xx_pfit_disable(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	if (!crtc->config.gmch_pfit.control)
 		return;
 	assert_pipe_disabled(dev_priv, crtc->pipe);
 	DRM_DEBUG_DRIVER("disabling pfit, current: 0x%08x\n",
 			 I915_READ(PFIT_CONTROL));
 		I915_WRITE(PFIT_CONTROL, 0);
+}
 static void i9xx_crtc_disable(struct drm_crtc *crtc)
+{
     struct drm_device *dev = crtc->dev;
     struct drm_i915_private *dev_priv = dev->dev_private;
     struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_encoder *encoder;
     int pipe = intel_crtc->pipe;
-    int plane = intel_crtc->plane;
     if (!intel_crtc->active)
         return;
+	/*
+	 * Gen2 reports pipe underruns whenever all planes are disabled.
+	 * So diasble underrun reporting before all the planes get disabled.
-	for_each_encoder_on_crtc(dev, crtc, encoder)
+	 * FIXME: Need to fix the logic to work when we turn off all planes
+	 * but leave the pipe running.
+	 */
+	if (IS_GEN2(dev))
+		intel_set_cpu_fifo_underrun_reporting(dev, pipe, false);
+	/*
+	 * Vblank time updates from the shadow to live plane control register
+	 * are blocked if the memory self-refresh mode is active at that
+	 * moment. So to make sure the plane gets truly disabled, disable
+	 * first the self-refresh mode. The self-refresh enable bit in turn
-		encoder->disable(encoder);
+	 * will be checked/applied by the HW only at the next frame start
+	 * event which is after the vblank start event, so we need to have a
+	 * wait-for-vblank between disabling the plane and the pipe.
-    /* Give the overlay scaler a chance to disable if it's on this pipe */
+	 */
-//    intel_crtc_wait_for_pending_flips(crtc);
+	intel_set_memory_cxsr(dev_priv, false);
-//    drm_vblank_off(dev, pipe);
+	intel_crtc_disable_planes(crtc);
+	for_each_encoder_on_crtc(dev, crtc, encoder)
+		encoder->disable(encoder);
-	if (dev_priv->fbc.plane == plane)
-        intel_disable_fbc(dev);
+	/*
+	 * On gen2 planes are double buffered but the pipe isn't, so we must
+	 * wait for planes to fully turn off before disabling the pipe.
-	intel_crtc_dpms_overlay(intel_crtc, false);
+	 * We also need to wait on all gmch platforms because of the
-	intel_crtc_update_cursor(crtc, false);
+	 * self-refresh mode constraint explained above.
-	intel_disable_planes(crtc);
+	 */
-	intel_disable_primary_plane(dev_priv, plane, pipe);
+		intel_wait_for_vblank(dev, pipe);
     intel_disable_pipe(dev_priv, pipe);
 	i9xx_pfit_disable(intel_crtc);
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		if (encoder->post_disable)
 			encoder->post_disable(encoder);
+	if (!intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI)) {
+		if (IS_CHERRYVIEW(dev))
+			chv_disable_pll(dev_priv, pipe);
-	if (IS_VALLEYVIEW(dev) && !intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI))
+		else if (IS_VALLEYVIEW(dev))
 		vlv_disable_pll(dev_priv, pipe);
-	else if (!IS_VALLEYVIEW(dev))
+		else
+	i9xx_disable_pll(dev_priv, pipe);
+	}
+	if (!IS_GEN2(dev))
-	i9xx_disable_pll(dev_priv, pipe);
+		intel_set_cpu_fifo_underrun_reporting(dev, pipe, false);
     intel_crtc->active = false;
 	intel_update_watermarks(crtc);
 	mutex_lock(&dev->struct_mutex);
+    intel_update_fbc(dev);
-    intel_update_fbc(dev);
+	mutex_unlock(&dev->struct_mutex);
+}
 static void i9xx_crtc_off(struct drm_crtc *crtc)
+{
+}
 static void intel_crtc_update_sarea(struct drm_crtc *crtc,
 				    bool enabled)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_master_private *master_priv;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
 #if 0
 	if (!dev->primary->master)
 		return;
 	master_priv = dev->primary->master->driver_priv;
 	if (!master_priv->sarea_priv)
 		return;
 	switch (pipe) {
 	case 0:
 		master_priv->sarea_priv->pipeA_w = enabled ? crtc->mode.hdisplay : 0;
 		master_priv->sarea_priv->pipeA_h = enabled ? crtc->mode.vdisplay : 0;
 		break;
 	case 1:
 		master_priv->sarea_priv->pipeB_w = enabled ? crtc->mode.hdisplay : 0;
 		master_priv->sarea_priv->pipeB_h = enabled ? crtc->mode.vdisplay : 0;
 		break;
 	default:
 		DRM_ERROR("Can't update pipe %c in SAREA\n", pipe_name(pipe));
 		break;
+	}
 #endif
+}
+/* Master function to enable/disable CRTC and corresponding power wells */
+void intel_crtc_control(struct drm_crtc *crtc, bool enable)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	enum intel_display_power_domain domain;
+	unsigned long domains;
+	if (enable) {
+		if (!intel_crtc->active) {
+			domains = get_crtc_power_domains(crtc);
+			for_each_power_domain(domain, domains)
+				intel_display_power_get(dev_priv, domain);
+			intel_crtc->enabled_power_domains = domains;
+			dev_priv->display.crtc_enable(crtc);
+		}
+	} else {
+		if (intel_crtc->active) {
+			dev_priv->display.crtc_disable(crtc);
+			domains = intel_crtc->enabled_power_domains;
+			for_each_power_domain(domain, domains)
+				intel_display_power_put(dev_priv, domain);
+			intel_crtc->enabled_power_domains = 0;
+		}
+	}
+}
 /**
  * Sets the power management mode of the pipe and plane.
  */
 void intel_crtc_update_dpms(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *intel_encoder;
 	bool enable = false;
 	for_each_encoder_on_crtc(dev, crtc, intel_encoder)
 		enable |= intel_encoder->connectors_active;
-	if (enable)
-		dev_priv->display.crtc_enable(crtc);
-	else
-		dev_priv->display.crtc_disable(crtc);
+	intel_crtc_control(crtc, enable);
 	intel_crtc_update_sarea(crtc, enable);
+}
 static void intel_crtc_disable(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_connector *connector;
 	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct drm_i915_gem_object *old_obj = intel_fb_obj(crtc->primary->fb);
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	enum pipe pipe = to_intel_crtc(crtc)->pipe;
 	/* crtc should still be enabled when we disable it. */
 	WARN_ON(!crtc->enabled);
 	dev_priv->display.crtc_disable(crtc);
-	intel_crtc->eld_vld = false;
 	intel_crtc_update_sarea(crtc, false);
 	dev_priv->display.off(crtc);
-	assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
-	assert_cursor_disabled(dev_priv, to_intel_crtc(crtc)->pipe);
-	assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
-	if (crtc->fb) {
+	if (crtc->primary->fb) {
 		mutex_lock(&dev->struct_mutex);
+		intel_unpin_fb_obj(old_obj);
+		i915_gem_track_fb(old_obj, NULL,
-		intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
+				  INTEL_FRONTBUFFER_PRIMARY(pipe));
 		mutex_unlock(&dev->struct_mutex);
-		crtc->fb = NULL;
+		crtc->primary->fb = NULL;
+	}
 	/* Update computed state. */
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		if (!connector->encoder || !connector->encoder->crtc)
 			continue;
 		if (connector->encoder->crtc != crtc)
 			continue;
 		connector->dpms = DRM_MODE_DPMS_OFF;
 		to_intel_encoder(connector->encoder)->connectors_active = false;
+	}
+}
 void intel_encoder_destroy(struct drm_encoder *encoder)
+{
 	struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
 	drm_encoder_cleanup(encoder);
 	kfree(intel_encoder);
+}
 /* Simple dpms helper for encoders with just one connector, no cloning and only
  * one kind of off state. It clamps all !ON modes to fully OFF and changes the
  * state of the entire output pipe. */
 static void intel_encoder_dpms(struct intel_encoder *encoder, int mode)
+{
 	if (mode == DRM_MODE_DPMS_ON) {
 		encoder->connectors_active = true;
 		intel_crtc_update_dpms(encoder->base.crtc);
 	} else {
 		encoder->connectors_active = false;
 		intel_crtc_update_dpms(encoder->base.crtc);
+	}
+}
 /* Cross check the actual hw state with our own modeset state tracking (and it's
  * internal consistency). */
 static void intel_connector_check_state(struct intel_connector *connector)
+{
 	if (connector->get_hw_state(connector)) {
 		struct intel_encoder *encoder = connector->encoder;
 		struct drm_crtc *crtc;
 		bool encoder_enabled;
 		enum pipe pipe;
 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
 			      connector->base.base.id,
-			      drm_get_connector_name(&connector->base));
+			      connector->base.name);
+		/* there is no real hw state for MST connectors */
+		if (connector->mst_port)
+			return;
 		WARN(connector->base.dpms == DRM_MODE_DPMS_OFF,
 		     "wrong connector dpms state\n");
 		WARN(connector->base.encoder != &encoder->base,
 		     "active connector not linked to encoder\n");
+		if (encoder) {
 		WARN(!encoder->connectors_active,
 		     "encoder->connectors_active not set\n");
 		encoder_enabled = encoder->get_hw_state(encoder, &pipe);
 		WARN(!encoder_enabled, "encoder not enabled\n");
 		if (WARN_ON(!encoder->base.crtc))
 			return;
 		crtc = encoder->base.crtc;
 		WARN(!crtc->enabled, "crtc not enabled\n");
 		WARN(!to_intel_crtc(crtc)->active, "crtc not active\n");
 		WARN(pipe != to_intel_crtc(crtc)->pipe,
 		     "encoder active on the wrong pipe\n");
+	}
+	}
+}
 /* Even simpler default implementation, if there's really no special case to
  * consider. */
 void intel_connector_dpms(struct drm_connector *connector, int mode)
+{
 	/* All the simple cases only support two dpms states. */
 	if (mode != DRM_MODE_DPMS_ON)
 		mode = DRM_MODE_DPMS_OFF;
 	if (mode == connector->dpms)
 		return;
 	connector->dpms = mode;
 	/* Only need to change hw state when actually enabled */
 	if (connector->encoder)
 		intel_encoder_dpms(to_intel_encoder(connector->encoder), mode);
 	intel_modeset_check_state(connector->dev);
+}
 /* Simple connector->get_hw_state implementation for encoders that support only
  * one connector and no cloning and hence the encoder state determines the state
  * of the connector. */
 bool intel_connector_get_hw_state(struct intel_connector *connector)
+{
 	enum pipe pipe = 0;
 	struct intel_encoder *encoder = connector->encoder;
 	return encoder->get_hw_state(encoder, &pipe);
+}
 static bool ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
 				     struct intel_crtc_config *pipe_config)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *pipe_B_crtc =
 		to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_B]);
 	DRM_DEBUG_KMS("checking fdi config on pipe %c, lanes %i\n",
 		      pipe_name(pipe), pipe_config->fdi_lanes);
 	if (pipe_config->fdi_lanes > 4) {
 		DRM_DEBUG_KMS("invalid fdi lane config on pipe %c: %i lanes\n",
 			      pipe_name(pipe), pipe_config->fdi_lanes);
 		return false;
+	}
 	if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
 		if (pipe_config->fdi_lanes > 2) {
 			DRM_DEBUG_KMS("only 2 lanes on haswell, required: %i lanes\n",
 				      pipe_config->fdi_lanes);
 			return false;
 		} else {
 			return true;
+		}
+	}
 	if (INTEL_INFO(dev)->num_pipes == 2)
 		return true;
 	/* Ivybridge 3 pipe is really complicated */
 	switch (pipe) {
 	case PIPE_A:
 		return true;
 	case PIPE_B:
 		if (dev_priv->pipe_to_crtc_mapping[PIPE_C]->enabled &&
 		    pipe_config->fdi_lanes > 2) {
 			DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
 				      pipe_name(pipe), pipe_config->fdi_lanes);
 			return false;
+		}
 		return true;
 	case PIPE_C:
 		if (!pipe_has_enabled_pch(pipe_B_crtc) ||
 		    pipe_B_crtc->config.fdi_lanes <= 2) {
 			if (pipe_config->fdi_lanes > 2) {
 				DRM_DEBUG_KMS("invalid shared fdi lane config on pipe %c: %i lanes\n",
 					      pipe_name(pipe), pipe_config->fdi_lanes);
 				return false;
+			}
 		} else {
 			DRM_DEBUG_KMS("fdi link B uses too many lanes to enable link C\n");
 			return false;
+		}
 		return true;
 	default:
 		BUG();
+	}
+}
 #define RETRY 1
 static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
 				      struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = intel_crtc->base.dev;
 	struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
 	int lane, link_bw, fdi_dotclock;
 	bool setup_ok, needs_recompute = false;
 retry:
 	/* FDI is a binary signal running at ~2.7GHz, encoding
 	 * each output octet as 10 bits. The actual frequency
 	 * is stored as a divider into a 100MHz clock, and the
 	 * mode pixel clock is stored in units of 1KHz.
 	 * Hence the bw of each lane in terms of the mode signal
 	 * is:
 	 */
 	link_bw = intel_fdi_link_freq(dev) * MHz(100)/KHz(1)/10;
 	fdi_dotclock = adjusted_mode->crtc_clock;
 	lane = ironlake_get_lanes_required(fdi_dotclock, link_bw,
 					   pipe_config->pipe_bpp);
 	pipe_config->fdi_lanes = lane;
 	intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock,
 			       link_bw, &pipe_config->fdi_m_n);
 	setup_ok = ironlake_check_fdi_lanes(intel_crtc->base.dev,
 					    intel_crtc->pipe, pipe_config);
 	if (!setup_ok && pipe_config->pipe_bpp > 6*3) {
 		pipe_config->pipe_bpp -= 2*3;
 		DRM_DEBUG_KMS("fdi link bw constraint, reducing pipe bpp to %i\n",
 			      pipe_config->pipe_bpp);
 		needs_recompute = true;
 		pipe_config->bw_constrained = true;
 		goto retry;
+	}
 	if (needs_recompute)
 		return RETRY;
 	return setup_ok ? 0 : -EINVAL;
+}
 static void hsw_compute_ips_config(struct intel_crtc *crtc,
 				   struct intel_crtc_config *pipe_config)
+{
-	pipe_config->ips_enabled = i915_enable_ips &&
+	pipe_config->ips_enabled = i915.enable_ips &&
 				   hsw_crtc_supports_ips(crtc) &&
 				   pipe_config->pipe_bpp <= 24;
+}
 static int intel_crtc_compute_config(struct intel_crtc *crtc,
 				     struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
 	/* FIXME should check pixel clock limits on all platforms */
 	if (INTEL_INFO(dev)->gen < 4) {
 		struct drm_i915_private *dev_priv = dev->dev_private;
 		int clock_limit =
 			dev_priv->display.get_display_clock_speed(dev);
 		/*
 		 * Enable pixel doubling when the dot clock
 		 * is > 90% of the (display) core speed.
+		 *
 		 * GDG double wide on either pipe,
 		 * otherwise pipe A only.
 		 */
 		if ((crtc->pipe == PIPE_A || IS_I915G(dev)) &&
 		    adjusted_mode->crtc_clock > clock_limit * 9 / 10) {
 			clock_limit *= 2;
 			pipe_config->double_wide = true;
+		}
 		if (adjusted_mode->crtc_clock > clock_limit * 9 / 10)
 			return -EINVAL;
+	}
 	/*
 	 * Pipe horizontal size must be even in:
 	 * - DVO ganged mode
 	 * - LVDS dual channel mode
 	 * - Double wide pipe
 	 */
 	if ((intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
 	     intel_is_dual_link_lvds(dev)) || pipe_config->double_wide)
 		pipe_config->pipe_src_w &= ~1;
 	/* Cantiga+ cannot handle modes with a hsync front porch of 0.
 	 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
 	 */
 	if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) &&
 		adjusted_mode->hsync_start == adjusted_mode->hdisplay)
 		return -EINVAL;
 	if ((IS_G4X(dev) || IS_VALLEYVIEW(dev)) && pipe_config->pipe_bpp > 10*3) {
 		pipe_config->pipe_bpp = 10*3; /* 12bpc is gen5+ */
 	} else if (INTEL_INFO(dev)->gen <= 4 && pipe_config->pipe_bpp > 8*3) {
 		/* only a 8bpc pipe, with 6bpc dither through the panel fitter
 		 * for lvds. */
 		pipe_config->pipe_bpp = 8*3;
+	}
 	if (HAS_IPS(dev))
 		hsw_compute_ips_config(crtc, pipe_config);
+	/*
-	/* XXX: PCH clock sharing is done in ->mode_set, so make sure the old
+	 * XXX: PCH/WRPLL clock sharing is done in ->mode_set, so make sure the
+	 * old clock survives for now.
-	 * clock survives for now. */
+	 */
-	if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
+	if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev) || HAS_DDI(dev))
 		pipe_config->shared_dpll = crtc->config.shared_dpll;
 	if (pipe_config->has_pch_encoder)
 		return ironlake_fdi_compute_config(crtc, pipe_config);
 	return 0;
+}
 static int valleyview_get_display_clock_speed(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int vco = valleyview_get_vco(dev_priv);
+	u32 val;
+	int divider;
+	mutex_lock(&dev_priv->dpio_lock);
+	val = vlv_cck_read(dev_priv, CCK_DISPLAY_CLOCK_CONTROL);
+	mutex_unlock(&dev_priv->dpio_lock);
+	divider = val & DISPLAY_FREQUENCY_VALUES;
+	WARN((val & DISPLAY_FREQUENCY_STATUS) !=
+	     (divider << DISPLAY_FREQUENCY_STATUS_SHIFT),
+	     "cdclk change in progress\n");
-	return 400000; /* FIXME */
+	return DIV_ROUND_CLOSEST(vco << 1, divider + 1);
+}
 static int i945_get_display_clock_speed(struct drm_device *dev)
+{
 	return 400000;
+}
 static int i915_get_display_clock_speed(struct drm_device *dev)
+{
 	return 333000;
+}
 static int i9xx_misc_get_display_clock_speed(struct drm_device *dev)
+{
 	return 200000;
+}
 static int pnv_get_display_clock_speed(struct drm_device *dev)
+{
 	u16 gcfgc = 0;
 	pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
 	switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
 	case GC_DISPLAY_CLOCK_267_MHZ_PNV:
 		return 267000;
 	case GC_DISPLAY_CLOCK_333_MHZ_PNV:
 		return 333000;
 	case GC_DISPLAY_CLOCK_444_MHZ_PNV:
 		return 444000;
 	case GC_DISPLAY_CLOCK_200_MHZ_PNV:
 		return 200000;
 	default:
 		DRM_ERROR("Unknown pnv display core clock 0x%04x\n", gcfgc);
 	case GC_DISPLAY_CLOCK_133_MHZ_PNV:
 		return 133000;
 	case GC_DISPLAY_CLOCK_167_MHZ_PNV:
 		return 167000;
+	}
+}
 static int i915gm_get_display_clock_speed(struct drm_device *dev)
+{
 	u16 gcfgc = 0;
 	pci_read_config_word(dev->pdev, GCFGC, &gcfgc);
 	if (gcfgc & GC_LOW_FREQUENCY_ENABLE)
 		return 133000;
 	else {
 		switch (gcfgc & GC_DISPLAY_CLOCK_MASK) {
 		case GC_DISPLAY_CLOCK_333_MHZ:
 			return 333000;
 		default:
 		case GC_DISPLAY_CLOCK_190_200_MHZ:
 			return 190000;
+		}
+	}
+}
 static int i865_get_display_clock_speed(struct drm_device *dev)
+{
 	return 266000;
+}
 static int i855_get_display_clock_speed(struct drm_device *dev)
+{
 	u16 hpllcc = 0;
 	/* Assume that the hardware is in the high speed state.  This
 	 * should be the default.
 	 */
 	switch (hpllcc & GC_CLOCK_CONTROL_MASK) {
 	case GC_CLOCK_133_200:
 	case GC_CLOCK_100_200:
 		return 200000;
 	case GC_CLOCK_166_250:
 		return 250000;
 	case GC_CLOCK_100_133:
 		return 133000;
+	}
 	/* Shouldn't happen */
 	return 0;
+}
 static int i830_get_display_clock_speed(struct drm_device *dev)
+{
 	return 133000;
+}
 static void
 intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den)
+{
 	while (*num > DATA_LINK_M_N_MASK ||
 	       *den > DATA_LINK_M_N_MASK) {
 		*num >>= 1;
 		*den >>= 1;
+	}
+}
 static void compute_m_n(unsigned int m, unsigned int n,
 			uint32_t *ret_m, uint32_t *ret_n)
+{
 	*ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX);
 	*ret_m = div_u64((uint64_t) m * *ret_n, n);
 	intel_reduce_m_n_ratio(ret_m, ret_n);
+}
 void
 intel_link_compute_m_n(int bits_per_pixel, int nlanes,
 		       int pixel_clock, int link_clock,
 		       struct intel_link_m_n *m_n)
+{
 	m_n->tu = 64;
 	compute_m_n(bits_per_pixel * pixel_clock,
 		    link_clock * nlanes * 8,
 		    &m_n->gmch_m, &m_n->gmch_n);
 	compute_m_n(pixel_clock, link_clock,
 		    &m_n->link_m, &m_n->link_n);
+}
 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
+{
-	if (i915_panel_use_ssc >= 0)
+	if (i915.panel_use_ssc >= 0)
-		return i915_panel_use_ssc != 0;
+		return i915.panel_use_ssc != 0;
 	return dev_priv->vbt.lvds_use_ssc
 		&& !(dev_priv->quirks & QUIRK_LVDS_SSC_DISABLE);
+}
 static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int refclk;
 	if (IS_VALLEYVIEW(dev)) {
 		refclk = 100000;
 	} else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
 	    intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
 		refclk = dev_priv->vbt.lvds_ssc_freq;
 		DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk);
 	} else if (!IS_GEN2(dev)) {
 		refclk = 96000;
 	} else {
 		refclk = 48000;
+	}
 	return refclk;
+}
 static uint32_t pnv_dpll_compute_fp(struct dpll *dpll)
+{
 	return (1 << dpll->n) << 16 | dpll->m2;
+}
 static uint32_t i9xx_dpll_compute_fp(struct dpll *dpll)
+{
 	return dpll->n << 16 | dpll->m1 << 8 | dpll->m2;
+}
 static void i9xx_update_pll_dividers(struct intel_crtc *crtc,
 				     intel_clock_t *reduced_clock)
+{
 	struct drm_device *dev = crtc->base.dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	int pipe = crtc->pipe;
 	u32 fp, fp2 = 0;
 	if (IS_PINEVIEW(dev)) {
 		fp = pnv_dpll_compute_fp(&crtc->config.dpll);
 		if (reduced_clock)
 			fp2 = pnv_dpll_compute_fp(reduced_clock);
 	} else {
 		fp = i9xx_dpll_compute_fp(&crtc->config.dpll);
 		if (reduced_clock)
 			fp2 = i9xx_dpll_compute_fp(reduced_clock);
+	}
 	I915_WRITE(FP0(pipe), fp);
 	crtc->config.dpll_hw_state.fp0 = fp;
 	crtc->lowfreq_avail = false;
 	if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
-	    reduced_clock && i915_powersave) {
+	    reduced_clock && i915.powersave) {
-		I915_WRITE(FP1(pipe), fp2);
 		crtc->config.dpll_hw_state.fp1 = fp2;
 		crtc->lowfreq_avail = true;
 	} else {
-		I915_WRITE(FP1(pipe), fp);
 		crtc->config.dpll_hw_state.fp1 = fp;
+	}
+}
 static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe
 		pipe)
+{
 	u32 reg_val;
 	/*
 	 * PLLB opamp always calibrates to max value of 0x3f, force enable it
 	 * and set it to a reasonable value instead.
 	 */
 	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
 	reg_val &= 0xffffff00;
 	reg_val |= 0x00000030;
 	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
 	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
 	reg_val &= 0x8cffffff;
 	reg_val = 0x8c000000;
 	vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
 	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));
 	reg_val &= 0xffffff00;
 	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val);
 	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13);
 	reg_val &= 0x00ffffff;
 	reg_val |= 0xb0000000;
 	vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val);
+}
 static void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
 					 struct intel_link_m_n *m_n)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe = crtc->pipe;
 	I915_WRITE(PCH_TRANS_DATA_M1(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
 	I915_WRITE(PCH_TRANS_DATA_N1(pipe), m_n->gmch_n);
 	I915_WRITE(PCH_TRANS_LINK_M1(pipe), m_n->link_m);
 	I915_WRITE(PCH_TRANS_LINK_N1(pipe), m_n->link_n);
+}
 static void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
 					 struct intel_link_m_n *m_n)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe = crtc->pipe;
 	enum transcoder transcoder = crtc->config.cpu_transcoder;
 	if (INTEL_INFO(dev)->gen >= 5) {
 		I915_WRITE(PIPE_DATA_M1(transcoder), TU_SIZE(m_n->tu) | m_n->gmch_m);
 		I915_WRITE(PIPE_DATA_N1(transcoder), m_n->gmch_n);
 		I915_WRITE(PIPE_LINK_M1(transcoder), m_n->link_m);
 		I915_WRITE(PIPE_LINK_N1(transcoder), m_n->link_n);
 	} else {
 		I915_WRITE(PIPE_DATA_M_G4X(pipe), TU_SIZE(m_n->tu) | m_n->gmch_m);
 		I915_WRITE(PIPE_DATA_N_G4X(pipe), m_n->gmch_n);
 		I915_WRITE(PIPE_LINK_M_G4X(pipe), m_n->link_m);
 		I915_WRITE(PIPE_LINK_N_G4X(pipe), m_n->link_n);
+	}
+}
 static void intel_dp_set_m_n(struct intel_crtc *crtc)
+{
 	if (crtc->config.has_pch_encoder)
 		intel_pch_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
 	else
 		intel_cpu_transcoder_set_m_n(crtc, &crtc->config.dp_m_n);
+}
 static void vlv_update_pll(struct intel_crtc *crtc)
+{
+	u32 dpll, dpll_md;
+	/*
+	 * Enable DPIO clock input. We should never disable the reference
+	 * clock for pipe B, since VGA hotplug / manual detection depends
+	 * on it.
+	 */
+	dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
+		DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
+	/* We should never disable this, set it here for state tracking */
+	if (crtc->pipe == PIPE_B)
+		dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
+	dpll |= DPLL_VCO_ENABLE;
+	crtc->config.dpll_hw_state.dpll = dpll;
+	dpll_md = (crtc->config.pixel_multiplier - 1)
+		<< DPLL_MD_UDI_MULTIPLIER_SHIFT;
+	crtc->config.dpll_hw_state.dpll_md = dpll_md;
+}
+static void vlv_prepare_pll(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe = crtc->pipe;
-	u32 dpll, mdiv;
+	u32 mdiv;
 	u32 bestn, bestm1, bestm2, bestp1, bestp2;
-	u32 coreclk, reg_val, dpll_md;
+	u32 coreclk, reg_val;
 	mutex_lock(&dev_priv->dpio_lock);
 	bestn = crtc->config.dpll.n;
 	bestm1 = crtc->config.dpll.m1;
 	bestm2 = crtc->config.dpll.m2;
 	bestp1 = crtc->config.dpll.p1;
 	bestp2 = crtc->config.dpll.p2;
 	/* See eDP HDMI DPIO driver vbios notes doc */
 	/* PLL B needs special handling */
-	if (pipe)
+	if (pipe == PIPE_B)
 		vlv_pllb_recal_opamp(dev_priv, pipe);
 	/* Set up Tx target for periodic Rcomp update */
 	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9_BCAST, 0x0100000f);
 	/* Disable target IRef on PLL */
 	reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW8(pipe));
 	reg_val &= 0x00ffffff;
 	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW8(pipe), reg_val);
 	/* Disable fast lock */
 	vlv_dpio_write(dev_priv, pipe, VLV_CMN_DW0, 0x610);
 	/* Set idtafcrecal before PLL is enabled */
 	mdiv = ((bestm1 << DPIO_M1DIV_SHIFT) | (bestm2 & DPIO_M2DIV_MASK));
 	mdiv |= ((bestp1 << DPIO_P1_SHIFT) | (bestp2 << DPIO_P2_SHIFT));
 	mdiv |= ((bestn << DPIO_N_SHIFT));
 	mdiv |= (1 << DPIO_K_SHIFT);
 	/*
 	 * Post divider depends on pixel clock rate, DAC vs digital (and LVDS,
 	 * but we don't support that).
 	 * Note: don't use the DAC post divider as it seems unstable.
 	 */
 	mdiv |= (DPIO_POST_DIV_HDMIDP << DPIO_POST_DIV_SHIFT);
 	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
 	mdiv |= DPIO_ENABLE_CALIBRATION;
 	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW3(pipe), mdiv);
 	/* Set HBR and RBR LPF coefficients */
 	if (crtc->config.port_clock == 162000 ||
 	    intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_ANALOG) ||
 	    intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI))
 		vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
 x009f0003);
 	else
 		vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW10(pipe),
 x00d0000f);
 	if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP) ||
 	    intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT)) {
 		/* Use SSC source */
-		if (!pipe)
+		if (pipe == PIPE_A)
 			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
 x0df40000);
 		else
 			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
 x0df70000);
 	} else { /* HDMI or VGA */
 		/* Use bend source */
-		if (!pipe)
+		if (pipe == PIPE_A)
 			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
 x0df70000);
 		else
 			vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW5(pipe),
 x0df40000);
+	}
 	coreclk = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW7(pipe));
 	coreclk = (coreclk & 0x0000ff00) | 0x01c00000;
 	if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT) ||
 	    intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_EDP))
 		coreclk |= 0x01000000;
 	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW7(pipe), coreclk);
 	vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW11(pipe), 0x87871000);
+	mutex_unlock(&dev_priv->dpio_lock);
+}
+static void chv_update_pll(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int pipe = crtc->pipe;
+	int dpll_reg = DPLL(crtc->pipe);
+	enum dpio_channel port = vlv_pipe_to_channel(pipe);
+	u32 loopfilter, intcoeff;
+	u32 bestn, bestm1, bestm2, bestp1, bestp2, bestm2_frac;
+	int refclk;
+	crtc->config.dpll_hw_state.dpll = DPLL_SSC_REF_CLOCK_CHV |
+		DPLL_REFA_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS |
+		DPLL_VCO_ENABLE;
+	if (pipe != PIPE_A)
+		crtc->config.dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
+	crtc->config.dpll_hw_state.dpll_md =
+		(crtc->config.pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
+	bestn = crtc->config.dpll.n;
+	bestm2_frac = crtc->config.dpll.m2 & 0x3fffff;
+	bestm1 = crtc->config.dpll.m1;
+	bestm2 = crtc->config.dpll.m2 >> 22;
+	bestp1 = crtc->config.dpll.p1;
+	bestp2 = crtc->config.dpll.p2;
-	/*
-	 * Enable DPIO clock input. We should never disable the reference
-	 * clock for pipe B, since VGA hotplug / manual detection depends
+	/*
-	 * on it.
+	 * Enable Refclk and SSC
-	 */
-	dpll = DPLL_EXT_BUFFER_ENABLE_VLV | DPLL_REFA_CLK_ENABLE_VLV |
-		DPLL_VGA_MODE_DIS | DPLL_INTEGRATED_CLOCK_VLV;
-	/* We should never disable this, set it here for state tracking */
+	 */
-	if (pipe == PIPE_B)
-		dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
-	dpll |= DPLL_VCO_ENABLE;
+	I915_WRITE(dpll_reg,
-	crtc->config.dpll_hw_state.dpll = dpll;
+		   crtc->config.dpll_hw_state.dpll & ~DPLL_VCO_ENABLE);
-	dpll_md = (crtc->config.pixel_multiplier - 1)
+	mutex_lock(&dev_priv->dpio_lock);
+	/* p1 and p2 divider */
+	vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port),
+<< DPIO_CHV_S1_DIV_SHIFT |
+			bestp1 << DPIO_CHV_P1_DIV_SHIFT |
+			bestp2 << DPIO_CHV_P2_DIV_SHIFT |
+<< DPIO_CHV_K_DIV_SHIFT);
+	/* Feedback post-divider - m2 */
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW0(port), bestm2);
+	/* Feedback refclk divider - n and m1 */
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW1(port),
+			DPIO_CHV_M1_DIV_BY_2 |
+<< DPIO_CHV_N_DIV_SHIFT);
-		<< DPLL_MD_UDI_MULTIPLIER_SHIFT;
+	/* M2 fraction division */
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW2(port), bestm2_frac);
+	/* M2 fraction division enable */
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW3(port),
+		       DPIO_CHV_FRAC_DIV_EN |
+		       (2 << DPIO_CHV_FEEDFWD_GAIN_SHIFT));
+	/* Loop filter */
+	refclk = i9xx_get_refclk(&crtc->base, 0);
+	loopfilter = 5 << DPIO_CHV_PROP_COEFF_SHIFT |
+<< DPIO_CHV_GAIN_CTRL_SHIFT;
+	if (refclk == 100000)
+		intcoeff = 11;
+	else if (refclk == 38400)
+		intcoeff = 10;
+	else
+		intcoeff = 9;
+	loopfilter |= intcoeff << DPIO_CHV_INT_COEFF_SHIFT;
+	vlv_dpio_write(dev_priv, pipe, CHV_PLL_DW6(port), loopfilter);
-	crtc->config.dpll_hw_state.dpll_md = dpll_md;
+	/* AFC Recal */
 	vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port),
-	if (crtc->config.has_dp_encoder)
+			vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) |
-		intel_dp_set_m_n(crtc);
+			DPIO_AFC_RECAL);
 	mutex_unlock(&dev_priv->dpio_lock);
+}
 static void i9xx_update_pll(struct intel_crtc *crtc,
 			    intel_clock_t *reduced_clock,
 			    int num_connectors)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 dpll;
 	bool is_sdvo;
 	struct dpll *clock = &crtc->config.dpll;
 	i9xx_update_pll_dividers(crtc, reduced_clock);
 	is_sdvo = intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_SDVO) ||
 		intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI);
 	dpll = DPLL_VGA_MODE_DIS;
 	if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS))
 		dpll |= DPLLB_MODE_LVDS;
 	else
 		dpll |= DPLLB_MODE_DAC_SERIAL;
 	if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
 			dpll |= (crtc->config.pixel_multiplier - 1)
 				<< SDVO_MULTIPLIER_SHIFT_HIRES;
+		}
 	if (is_sdvo)
 		dpll |= DPLL_SDVO_HIGH_SPEED;
 	if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DISPLAYPORT))
 		dpll |= DPLL_SDVO_HIGH_SPEED;
 	/* compute bitmask from p1 value */
 	if (IS_PINEVIEW(dev))
 		dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW;
 	else {
 		dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
 		if (IS_G4X(dev) && reduced_clock)
 			dpll |= (1 << (reduced_clock->p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
+	}
 	switch (clock->p2) {
 	case 5:
 		dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
 		break;
 	case 7:
 		dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
 		break;
 	case 10:
 		dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
 		break;
 	case 14:
 		dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
 		break;
+	}
 	if (INTEL_INFO(dev)->gen >= 4)
 		dpll |= (6 << PLL_LOAD_PULSE_PHASE_SHIFT);
 	if (crtc->config.sdvo_tv_clock)
 		dpll |= PLL_REF_INPUT_TVCLKINBC;
 	else if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
 		 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
 		dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
 	else
 		dpll |= PLL_REF_INPUT_DREFCLK;
 	dpll |= DPLL_VCO_ENABLE;
 	crtc->config.dpll_hw_state.dpll = dpll;
 	if (INTEL_INFO(dev)->gen >= 4) {
 		u32 dpll_md = (crtc->config.pixel_multiplier - 1)
 					<< DPLL_MD_UDI_MULTIPLIER_SHIFT;
 		crtc->config.dpll_hw_state.dpll_md = dpll_md;
+	}
-	if (crtc->config.has_dp_encoder)
-		intel_dp_set_m_n(crtc);
+}
 static void i8xx_update_pll(struct intel_crtc *crtc,
 			    intel_clock_t *reduced_clock,
 			    int num_connectors)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 dpll;
 	struct dpll *clock = &crtc->config.dpll;
 	i9xx_update_pll_dividers(crtc, reduced_clock);
 	dpll = DPLL_VGA_MODE_DIS;
 	if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS)) {
 		dpll |= (1 << (clock->p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
 	} else {
 		if (clock->p1 == 2)
 			dpll |= PLL_P1_DIVIDE_BY_TWO;
 		else
 			dpll |= (clock->p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT;
 		if (clock->p2 == 4)
 			dpll |= PLL_P2_DIVIDE_BY_4;
+	}
 	if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_DVO))
 		dpll |= DPLL_DVO_2X_MODE;
 	if (intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_LVDS) &&
 		 intel_panel_use_ssc(dev_priv) && num_connectors < 2)
 		dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
 	else
 		dpll |= PLL_REF_INPUT_DREFCLK;
 	dpll |= DPLL_VCO_ENABLE;
 	crtc->config.dpll_hw_state.dpll = dpll;
+}
 static void intel_set_pipe_timings(struct intel_crtc *intel_crtc)
+{
 	struct drm_device *dev = intel_crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum pipe pipe = intel_crtc->pipe;
 	enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
 	struct drm_display_mode *adjusted_mode =
 		&intel_crtc->config.adjusted_mode;
-	uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end;
+	uint32_t crtc_vtotal, crtc_vblank_end;
+	int vsyncshift = 0;
 	/* We need to be careful not to changed the adjusted mode, for otherwise
 	 * the hw state checker will get angry at the mismatch. */
 	crtc_vtotal = adjusted_mode->crtc_vtotal;
 	crtc_vblank_end = adjusted_mode->crtc_vblank_end;
-	if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
+	if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
 		/* the chip adds 2 halflines automatically */
 		crtc_vtotal -= 1;
 		crtc_vblank_end -= 1;
-		vsyncshift = adjusted_mode->crtc_hsync_start
+		if (intel_pipe_has_type(&intel_crtc->base, INTEL_OUTPUT_SDVO))
-			     - adjusted_mode->crtc_htotal / 2;
+			vsyncshift = (adjusted_mode->crtc_htotal - 1) / 2;
-	} else {
+		else
+			vsyncshift = adjusted_mode->crtc_hsync_start -
+				adjusted_mode->crtc_htotal / 2;
-		vsyncshift = 0;
+		if (vsyncshift < 0)
+			vsyncshift += adjusted_mode->crtc_htotal;
+	}
 	if (INTEL_INFO(dev)->gen > 3)
 		I915_WRITE(VSYNCSHIFT(cpu_transcoder), vsyncshift);
 	I915_WRITE(HTOTAL(cpu_transcoder),
 		   (adjusted_mode->crtc_hdisplay - 1) |
 		   ((adjusted_mode->crtc_htotal - 1) << 16));
 	I915_WRITE(HBLANK(cpu_transcoder),
 		   (adjusted_mode->crtc_hblank_start - 1) |
 		   ((adjusted_mode->crtc_hblank_end - 1) << 16));
 	I915_WRITE(HSYNC(cpu_transcoder),
 		   (adjusted_mode->crtc_hsync_start - 1) |
 		   ((adjusted_mode->crtc_hsync_end - 1) << 16));
 	I915_WRITE(VTOTAL(cpu_transcoder),
 		   (adjusted_mode->crtc_vdisplay - 1) |
 		   ((crtc_vtotal - 1) << 16));
 	I915_WRITE(VBLANK(cpu_transcoder),
 		   (adjusted_mode->crtc_vblank_start - 1) |
 		   ((crtc_vblank_end - 1) << 16));
 	I915_WRITE(VSYNC(cpu_transcoder),
 		   (adjusted_mode->crtc_vsync_start - 1) |
 		   ((adjusted_mode->crtc_vsync_end - 1) << 16));
 	/* Workaround: when the EDP input selection is B, the VTOTAL_B must be
 	 * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is
 	 * documented on the DDI_FUNC_CTL register description, EDP Input Select
 	 * bits. */
 	if (IS_HASWELL(dev) && cpu_transcoder == TRANSCODER_EDP &&
 	    (pipe == PIPE_B || pipe == PIPE_C))
 		I915_WRITE(VTOTAL(pipe), I915_READ(VTOTAL(cpu_transcoder)));
 	/* pipesrc controls the size that is scaled from, which should
 	 * always be the user's requested size.
 	 */
 	I915_WRITE(PIPESRC(pipe),
 		   ((intel_crtc->config.pipe_src_w - 1) << 16) |
 		   (intel_crtc->config.pipe_src_h - 1));
+}
 static void intel_get_pipe_timings(struct intel_crtc *crtc,
 				   struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
 	uint32_t tmp;
 	tmp = I915_READ(HTOTAL(cpu_transcoder));
 	pipe_config->adjusted_mode.crtc_hdisplay = (tmp & 0xffff) + 1;
 	pipe_config->adjusted_mode.crtc_htotal = ((tmp >> 16) & 0xffff) + 1;
 	tmp = I915_READ(HBLANK(cpu_transcoder));
 	pipe_config->adjusted_mode.crtc_hblank_start = (tmp & 0xffff) + 1;
 	pipe_config->adjusted_mode.crtc_hblank_end = ((tmp >> 16) & 0xffff) + 1;
 	tmp = I915_READ(HSYNC(cpu_transcoder));
 	pipe_config->adjusted_mode.crtc_hsync_start = (tmp & 0xffff) + 1;
 	pipe_config->adjusted_mode.crtc_hsync_end = ((tmp >> 16) & 0xffff) + 1;
 	tmp = I915_READ(VTOTAL(cpu_transcoder));
 	pipe_config->adjusted_mode.crtc_vdisplay = (tmp & 0xffff) + 1;
 	pipe_config->adjusted_mode.crtc_vtotal = ((tmp >> 16) & 0xffff) + 1;
 	tmp = I915_READ(VBLANK(cpu_transcoder));
 	pipe_config->adjusted_mode.crtc_vblank_start = (tmp & 0xffff) + 1;
 	pipe_config->adjusted_mode.crtc_vblank_end = ((tmp >> 16) & 0xffff) + 1;
 	tmp = I915_READ(VSYNC(cpu_transcoder));
 	pipe_config->adjusted_mode.crtc_vsync_start = (tmp & 0xffff) + 1;
 	pipe_config->adjusted_mode.crtc_vsync_end = ((tmp >> 16) & 0xffff) + 1;
 	if (I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_INTERLACE_MASK) {
 		pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_INTERLACE;
 		pipe_config->adjusted_mode.crtc_vtotal += 1;
 		pipe_config->adjusted_mode.crtc_vblank_end += 1;
+	}
 	tmp = I915_READ(PIPESRC(crtc->pipe));
 	pipe_config->pipe_src_h = (tmp & 0xffff) + 1;
 	pipe_config->pipe_src_w = ((tmp >> 16) & 0xffff) + 1;
 	pipe_config->requested_mode.vdisplay = pipe_config->pipe_src_h;
 	pipe_config->requested_mode.hdisplay = pipe_config->pipe_src_w;
+}
-static void intel_crtc_mode_from_pipe_config(struct intel_crtc *intel_crtc,
+void intel_mode_from_pipe_config(struct drm_display_mode *mode,
 					     struct intel_crtc_config *pipe_config)
+{
+	mode->hdisplay = pipe_config->adjusted_mode.crtc_hdisplay;
+	mode->htotal = pipe_config->adjusted_mode.crtc_htotal;
+	mode->hsync_start = pipe_config->adjusted_mode.crtc_hsync_start;
+	mode->hsync_end = pipe_config->adjusted_mode.crtc_hsync_end;
-{
+	mode->vdisplay = pipe_config->adjusted_mode.crtc_vdisplay;
+	mode->vtotal = pipe_config->adjusted_mode.crtc_vtotal;
+	mode->vsync_start = pipe_config->adjusted_mode.crtc_vsync_start;
-	struct drm_crtc *crtc = &intel_crtc->base;
+	mode->vsync_end = pipe_config->adjusted_mode.crtc_vsync_end;
-	crtc->mode.hdisplay = pipe_config->adjusted_mode.crtc_hdisplay;
-	crtc->mode.htotal = pipe_config->adjusted_mode.crtc_htotal;
-	crtc->mode.hsync_start = pipe_config->adjusted_mode.crtc_hsync_start;
-	crtc->mode.hsync_end = pipe_config->adjusted_mode.crtc_hsync_end;
-	crtc->mode.vdisplay = pipe_config->adjusted_mode.crtc_vdisplay;
-	crtc->mode.vtotal = pipe_config->adjusted_mode.crtc_vtotal;
-	crtc->mode.vsync_start = pipe_config->adjusted_mode.crtc_vsync_start;
-	crtc->mode.vsync_end = pipe_config->adjusted_mode.crtc_vsync_end;
-	crtc->mode.flags = pipe_config->adjusted_mode.flags;
+	mode->flags = pipe_config->adjusted_mode.flags;
-	crtc->mode.clock = pipe_config->adjusted_mode.crtc_clock;
+	mode->clock = pipe_config->adjusted_mode.crtc_clock;
-	crtc->mode.flags |= pipe_config->adjusted_mode.flags;
+	mode->flags |= pipe_config->adjusted_mode.flags;
+}
 static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
+{
 	struct drm_device *dev = intel_crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t pipeconf;
 	pipeconf = 0;
 	if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
 	    I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE)
 		pipeconf |= PIPECONF_ENABLE;
 	if (intel_crtc->config.double_wide)
 			pipeconf |= PIPECONF_DOUBLE_WIDE;
 	/* only g4x and later have fancy bpc/dither controls */
 	if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
 		/* Bspec claims that we can't use dithering for 30bpp pipes. */
 		if (intel_crtc->config.dither && intel_crtc->config.pipe_bpp != 30)
 			pipeconf |= PIPECONF_DITHER_EN |
 				    PIPECONF_DITHER_TYPE_SP;
 		switch (intel_crtc->config.pipe_bpp) {
 		case 18:
 			pipeconf |= PIPECONF_6BPC;
 			break;
 		case 24:
 			pipeconf |= PIPECONF_8BPC;
 			break;
 		case 30:
 			pipeconf |= PIPECONF_10BPC;
 			break;
 		default:
 			/* Case prevented by intel_choose_pipe_bpp_dither. */
 			BUG();
+		}
+	}
 	if (HAS_PIPE_CXSR(dev)) {
 		if (intel_crtc->lowfreq_avail) {
 			DRM_DEBUG_KMS("enabling CxSR downclocking\n");
 			pipeconf |= PIPECONF_CXSR_DOWNCLOCK;
 		} else {
 			DRM_DEBUG_KMS("disabling CxSR downclocking\n");
+		}
+	}
+	if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) {
-	if (!IS_GEN2(dev) &&
+		if (INTEL_INFO(dev)->gen < 4 ||
-	    intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
+		    intel_pipe_has_type(&intel_crtc->base, INTEL_OUTPUT_SDVO))
 		pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
+	else
+			pipeconf |= PIPECONF_INTERLACE_W_SYNC_SHIFT;
-	else
+	} else
 		pipeconf |= PIPECONF_PROGRESSIVE;
 	if (IS_VALLEYVIEW(dev) && intel_crtc->config.limited_color_range)
 			pipeconf |= PIPECONF_COLOR_RANGE_SELECT;
 	I915_WRITE(PIPECONF(intel_crtc->pipe), pipeconf);
 	POSTING_READ(PIPECONF(intel_crtc->pipe));
+}
 static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
 			      int x, int y,
 			      struct drm_framebuffer *fb)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int pipe = intel_crtc->pipe;
-	int plane = intel_crtc->plane;
 	int refclk, num_connectors = 0;
 	intel_clock_t clock, reduced_clock;
-	u32 dspcntr;
 	bool ok, has_reduced_clock = false;
 	bool is_lvds = false, is_dsi = false;
 	struct intel_encoder *encoder;
 	const intel_limit_t *limit;
-	int ret;
 	for_each_encoder_on_crtc(dev, crtc, encoder) {
 		switch (encoder->type) {
 		case INTEL_OUTPUT_LVDS:
 			is_lvds = true;
 			break;
 		case INTEL_OUTPUT_DSI:
 			is_dsi = true;
 			break;
+		}
 		num_connectors++;
+	}
 	if (is_dsi)
-		goto skip_dpll;
+		return 0;
 	if (!intel_crtc->config.clock_set) {
 	refclk = i9xx_get_refclk(crtc, num_connectors);
 	/*
 		 * Returns a set of divisors for the desired target clock with
 		 * the given refclk, or FALSE.  The returned values represent
 		 * the clock equation: reflck * (5 * (m1 + 2) + (m2 + 2)) / (n +
 		 * 2) / p1 / p2.
 	 */
 	limit = intel_limit(crtc, refclk);
 	ok = dev_priv->display.find_dpll(limit, crtc,
 					 intel_crtc->config.port_clock,
 					 refclk, NULL, &clock);
 		if (!ok) {
 		DRM_ERROR("Couldn't find PLL settings for mode!\n");
 		return -EINVAL;
+	}
 	if (is_lvds && dev_priv->lvds_downclock_avail) {
 		/*
 			 * Ensure we match the reduced clock's P to the target
 			 * clock.  If the clocks don't match, we can't switch
 			 * the display clock by using the FP0/FP1. In such case
 			 * we will disable the LVDS downclock feature.
 		*/
 		has_reduced_clock =
 			dev_priv->display.find_dpll(limit, crtc,
 						    dev_priv->lvds_downclock,
 						    refclk, &clock,
 						    &reduced_clock);
+	}
 	/* Compat-code for transition, will disappear. */
 		intel_crtc->config.dpll.n = clock.n;
 		intel_crtc->config.dpll.m1 = clock.m1;
 		intel_crtc->config.dpll.m2 = clock.m2;
 		intel_crtc->config.dpll.p1 = clock.p1;
 		intel_crtc->config.dpll.p2 = clock.p2;
+	}
 	if (IS_GEN2(dev)) {
 		i8xx_update_pll(intel_crtc,
 				has_reduced_clock ? &reduced_clock : NULL,
 				num_connectors);
+	} else if (IS_CHERRYVIEW(dev)) {
+		chv_update_pll(intel_crtc);
 	} else if (IS_VALLEYVIEW(dev)) {
 		vlv_update_pll(intel_crtc);
 	} else {
 		i9xx_update_pll(intel_crtc,
 				has_reduced_clock ? &reduced_clock : NULL,
 				num_connectors);
+	}
-skip_dpll:
-	/* Set up the display plane register */
-	dspcntr = DISPPLANE_GAMMA_ENABLE;
-	if (!IS_VALLEYVIEW(dev)) {
-	if (pipe == 0)
-		dspcntr &= ~DISPPLANE_SEL_PIPE_MASK;
-	else
-		dspcntr |= DISPPLANE_SEL_PIPE_B;
-	}
-	intel_set_pipe_timings(intel_crtc);
-	/* pipesrc and dspsize control the size that is scaled from,
-	 * which should always be the user's requested size.
-	 */
-	I915_WRITE(DSPSIZE(plane),
-		   ((intel_crtc->config.pipe_src_h - 1) << 16) |
-		   (intel_crtc->config.pipe_src_w - 1));
-	I915_WRITE(DSPPOS(plane), 0);
-	i9xx_set_pipeconf(intel_crtc);
-	I915_WRITE(DSPCNTR(plane), dspcntr);
-	POSTING_READ(DSPCNTR(plane));
-	ret = intel_pipe_set_base(crtc, x, y, fb);
-    return ret;
+	return 0;
+}
 static void i9xx_get_pfit_config(struct intel_crtc *crtc,
 				 struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t tmp;
 	if (INTEL_INFO(dev)->gen <= 3 && (IS_I830(dev) || !IS_MOBILE(dev)))
 		return;
 	tmp = I915_READ(PFIT_CONTROL);
 	if (!(tmp & PFIT_ENABLE))
 		return;
 	/* Check whether the pfit is attached to our pipe. */
 	if (INTEL_INFO(dev)->gen < 4) {
 		if (crtc->pipe != PIPE_B)
 			return;
 	} else {
 		if ((tmp & PFIT_PIPE_MASK) != (crtc->pipe << PFIT_PIPE_SHIFT))
 			return;
+	}
 	pipe_config->gmch_pfit.control = tmp;
 	pipe_config->gmch_pfit.pgm_ratios = I915_READ(PFIT_PGM_RATIOS);
 	if (INTEL_INFO(dev)->gen < 5)
 		pipe_config->gmch_pfit.lvds_border_bits =
 			I915_READ(LVDS) & LVDS_BORDER_ENABLE;
+}
 static void vlv_crtc_clock_get(struct intel_crtc *crtc,
 			       struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe = pipe_config->cpu_transcoder;
 	intel_clock_t clock;
 	u32 mdiv;
 	int refclk = 100000;
+	/* In case of MIPI DPLL will not even be used */
+	if (!(pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE))
+		return;
 	mutex_lock(&dev_priv->dpio_lock);
 	mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe));
 	mutex_unlock(&dev_priv->dpio_lock);
 	clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7;
 	clock.m2 = mdiv & DPIO_M2DIV_MASK;
 	clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf;
 	clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7;
 	clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f;
 	vlv_clock(refclk, &clock);
 	/* clock.dot is the fast clock */
 	pipe_config->port_clock = clock.dot / 5;
+}
+static void i9xx_get_plane_config(struct intel_crtc *crtc,
+				  struct intel_plane_config *plane_config)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	u32 val, base, offset;
+	int pipe = crtc->pipe, plane = crtc->plane;
+	int fourcc, pixel_format;
+	int aligned_height;
+	crtc->base.primary->fb = kzalloc(sizeof(struct intel_framebuffer), GFP_KERNEL);
+	if (!crtc->base.primary->fb) {
+		DRM_DEBUG_KMS("failed to alloc fb\n");
+		return;
+	}
+	val = I915_READ(DSPCNTR(plane));
+	if (INTEL_INFO(dev)->gen >= 4)
+		if (val & DISPPLANE_TILED)
+			plane_config->tiled = true;
+	pixel_format = val & DISPPLANE_PIXFORMAT_MASK;
+	fourcc = intel_format_to_fourcc(pixel_format);
+	crtc->base.primary->fb->pixel_format = fourcc;
+	crtc->base.primary->fb->bits_per_pixel =
+		drm_format_plane_cpp(fourcc, 0) * 8;
+	if (INTEL_INFO(dev)->gen >= 4) {
+		if (plane_config->tiled)
+			offset = I915_READ(DSPTILEOFF(plane));
+		else
+			offset = I915_READ(DSPLINOFF(plane));
+		base = I915_READ(DSPSURF(plane)) & 0xfffff000;
+	} else {
+		base = I915_READ(DSPADDR(plane));
+	}
+	plane_config->base = base;
+	val = I915_READ(PIPESRC(pipe));
+	crtc->base.primary->fb->width = ((val >> 16) & 0xfff) + 1;
+	crtc->base.primary->fb->height = ((val >> 0) & 0xfff) + 1;
+	val = I915_READ(DSPSTRIDE(pipe));
+	crtc->base.primary->fb->pitches[0] = val & 0xffffff80;
+	aligned_height = intel_align_height(dev, crtc->base.primary->fb->height,
+					    plane_config->tiled);
+	plane_config->size = 16*1024*1024;
+	DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
+		      pipe, plane, crtc->base.primary->fb->width,
+		      crtc->base.primary->fb->height,
+		      crtc->base.primary->fb->bits_per_pixel, base,
+		      crtc->base.primary->fb->pitches[0],
+		      plane_config->size);
+}
+static void chv_crtc_clock_get(struct intel_crtc *crtc,
+			       struct intel_crtc_config *pipe_config)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int pipe = pipe_config->cpu_transcoder;
+	enum dpio_channel port = vlv_pipe_to_channel(pipe);
+	intel_clock_t clock;
+	u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2;
+	int refclk = 100000;
+	mutex_lock(&dev_priv->dpio_lock);
+	cmn_dw13 = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW13(port));
+	pll_dw0 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW0(port));
+	pll_dw1 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW1(port));
+	pll_dw2 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW2(port));
+	mutex_unlock(&dev_priv->dpio_lock);
+	clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0;
+	clock.m2 = ((pll_dw0 & 0xff) << 22) | (pll_dw2 & 0x3fffff);
+	clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf;
+	clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7;
+	clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f;
+	chv_clock(refclk, &clock);
+	/* clock.dot is the fast clock */
+	pipe_config->port_clock = clock.dot / 5;
+}
 static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
 				 struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t tmp;
+	if (!intel_display_power_enabled(dev_priv,
+					 POWER_DOMAIN_PIPE(crtc->pipe)))
+		return false;
 	pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
 	pipe_config->shared_dpll = DPLL_ID_PRIVATE;
 	tmp = I915_READ(PIPECONF(crtc->pipe));
 	if (!(tmp & PIPECONF_ENABLE))
 		return false;
 	if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) {
 		switch (tmp & PIPECONF_BPC_MASK) {
 		case PIPECONF_6BPC:
 			pipe_config->pipe_bpp = 18;
 			break;
 		case PIPECONF_8BPC:
 			pipe_config->pipe_bpp = 24;
 			break;
 		case PIPECONF_10BPC:
 			pipe_config->pipe_bpp = 30;
 			break;
 		default:
 			break;
+		}
+	}
+	if (IS_VALLEYVIEW(dev) && (tmp & PIPECONF_COLOR_RANGE_SELECT))
+		pipe_config->limited_color_range = true;
 	if (INTEL_INFO(dev)->gen < 4)
 		pipe_config->double_wide = tmp & PIPECONF_DOUBLE_WIDE;
 	intel_get_pipe_timings(crtc, pipe_config);
 	i9xx_get_pfit_config(crtc, pipe_config);
 	if (INTEL_INFO(dev)->gen >= 4) {
 		tmp = I915_READ(DPLL_MD(crtc->pipe));
 		pipe_config->pixel_multiplier =
 			((tmp & DPLL_MD_UDI_MULTIPLIER_MASK)
 			 >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1;
 		pipe_config->dpll_hw_state.dpll_md = tmp;
 	} else if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) {
 		tmp = I915_READ(DPLL(crtc->pipe));
 		pipe_config->pixel_multiplier =
 			((tmp & SDVO_MULTIPLIER_MASK)
 			 >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1;
 	} else {
 		/* Note that on i915G/GM the pixel multiplier is in the sdvo
 		 * port and will be fixed up in the encoder->get_config
 		 * function. */
 		pipe_config->pixel_multiplier = 1;
+	}
 	pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(crtc->pipe));
 	if (!IS_VALLEYVIEW(dev)) {
 		pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(crtc->pipe));
 		pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(crtc->pipe));
 	} else {
 		/* Mask out read-only status bits. */
 		pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV |
 						     DPLL_PORTC_READY_MASK |
 						     DPLL_PORTB_READY_MASK);
+	}
+	if (IS_CHERRYVIEW(dev))
+		chv_crtc_clock_get(crtc, pipe_config);
-	if (IS_VALLEYVIEW(dev))
+	else if (IS_VALLEYVIEW(dev))
 		vlv_crtc_clock_get(crtc, pipe_config);
 	else
 		i9xx_crtc_clock_get(crtc, pipe_config);
 	return true;
+}
 static void ironlake_init_pch_refclk(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_mode_config *mode_config = &dev->mode_config;
 	struct intel_encoder *encoder;
 	u32 val, final;
 	bool has_lvds = false;
 	bool has_cpu_edp = false;
 	bool has_panel = false;
 	bool has_ck505 = false;
 	bool can_ssc = false;
 	/* We need to take the global config into account */
 		list_for_each_entry(encoder, &mode_config->encoder_list,
 				    base.head) {
 			switch (encoder->type) {
 			case INTEL_OUTPUT_LVDS:
 			has_panel = true;
 				has_lvds = true;
 			break;
 			case INTEL_OUTPUT_EDP:
 			has_panel = true;
 			if (enc_to_dig_port(&encoder->base)->port == PORT_A)
 				has_cpu_edp = true;
 				break;
+			}
+		}
 	if (HAS_PCH_IBX(dev)) {
 		has_ck505 = dev_priv->vbt.display_clock_mode;
 		can_ssc = has_ck505;
 	} else {
 		has_ck505 = false;
 		can_ssc = true;
+	}
 	DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
 		      has_panel, has_lvds, has_ck505);
 	/* Ironlake: try to setup display ref clock before DPLL
 	 * enabling. This is only under driver's control after
 	 * PCH B stepping, previous chipset stepping should be
 	 * ignoring this setting.
 	 */
 	val = I915_READ(PCH_DREF_CONTROL);
 	/* As we must carefully and slowly disable/enable each source in turn,
 	 * compute the final state we want first and check if we need to
 	 * make any changes at all.
 	 */
 	final = val;
 	final &= ~DREF_NONSPREAD_SOURCE_MASK;
 	if (has_ck505)
 		final |= DREF_NONSPREAD_CK505_ENABLE;
 	else
 		final |= DREF_NONSPREAD_SOURCE_ENABLE;
 	final &= ~DREF_SSC_SOURCE_MASK;
 	final &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
 	final &= ~DREF_SSC1_ENABLE;
 	if (has_panel) {
 		final |= DREF_SSC_SOURCE_ENABLE;
 		if (intel_panel_use_ssc(dev_priv) && can_ssc)
 			final |= DREF_SSC1_ENABLE;
 		if (has_cpu_edp) {
 			if (intel_panel_use_ssc(dev_priv) && can_ssc)
 				final |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
 			else
 				final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
 		} else
 			final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
 	} else {
 		final |= DREF_SSC_SOURCE_DISABLE;
 		final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
+	}
 	if (final == val)
 		return;
 	/* Always enable nonspread source */
 	val &= ~DREF_NONSPREAD_SOURCE_MASK;
 	if (has_ck505)
 		val |= DREF_NONSPREAD_CK505_ENABLE;
 	else
 		val |= DREF_NONSPREAD_SOURCE_ENABLE;
 	if (has_panel) {
 		val &= ~DREF_SSC_SOURCE_MASK;
 		val |= DREF_SSC_SOURCE_ENABLE;
 		/* SSC must be turned on before enabling the CPU output  */
 		if (intel_panel_use_ssc(dev_priv) && can_ssc) {
 			DRM_DEBUG_KMS("Using SSC on panel\n");
 			val |= DREF_SSC1_ENABLE;
 		} else
 			val &= ~DREF_SSC1_ENABLE;
 		/* Get SSC going before enabling the outputs */
 		I915_WRITE(PCH_DREF_CONTROL, val);
 			POSTING_READ(PCH_DREF_CONTROL);
 			udelay(200);
 		val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
 		/* Enable CPU source on CPU attached eDP */
 		if (has_cpu_edp) {
 			if (intel_panel_use_ssc(dev_priv) && can_ssc) {
 				DRM_DEBUG_KMS("Using SSC on eDP\n");
 				val |= DREF_CPU_SOURCE_OUTPUT_DOWNSPREAD;
-			}
-			else
+			} else
 				val |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
 		} else
 			val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
 		I915_WRITE(PCH_DREF_CONTROL, val);
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
 		} else {
 		DRM_DEBUG_KMS("Disabling SSC entirely\n");
 		val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
 		/* Turn off CPU output */
 		val |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
 		I915_WRITE(PCH_DREF_CONTROL, val);
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
 		/* Turn off the SSC source */
 		val &= ~DREF_SSC_SOURCE_MASK;
 		val |= DREF_SSC_SOURCE_DISABLE;
 		/* Turn off SSC1 */
 		val &= ~DREF_SSC1_ENABLE;
 		I915_WRITE(PCH_DREF_CONTROL, val);
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
+	}
 	BUG_ON(val != final);
+}
 static void lpt_reset_fdi_mphy(struct drm_i915_private *dev_priv)
+{
 	uint32_t tmp;
 		tmp = I915_READ(SOUTH_CHICKEN2);
 		tmp |= FDI_MPHY_IOSFSB_RESET_CTL;
 		I915_WRITE(SOUTH_CHICKEN2, tmp);
 		if (wait_for_atomic_us(I915_READ(SOUTH_CHICKEN2) &
 				       FDI_MPHY_IOSFSB_RESET_STATUS, 100))
 			DRM_ERROR("FDI mPHY reset assert timeout\n");
 		tmp = I915_READ(SOUTH_CHICKEN2);
 		tmp &= ~FDI_MPHY_IOSFSB_RESET_CTL;
 		I915_WRITE(SOUTH_CHICKEN2, tmp);
 		if (wait_for_atomic_us((I915_READ(SOUTH_CHICKEN2) &
 				FDI_MPHY_IOSFSB_RESET_STATUS) == 0, 100))
 			DRM_ERROR("FDI mPHY reset de-assert timeout\n");
+}
 /* WaMPhyProgramming:hsw */
 static void lpt_program_fdi_mphy(struct drm_i915_private *dev_priv)
+{
 	uint32_t tmp;
 	tmp = intel_sbi_read(dev_priv, 0x8008, SBI_MPHY);
 	tmp &= ~(0xFF << 24);
 	tmp |= (0x12 << 24);
 	intel_sbi_write(dev_priv, 0x8008, tmp, SBI_MPHY);
 	tmp = intel_sbi_read(dev_priv, 0x2008, SBI_MPHY);
 	tmp |= (1 << 11);
 	intel_sbi_write(dev_priv, 0x2008, tmp, SBI_MPHY);
 	tmp = intel_sbi_read(dev_priv, 0x2108, SBI_MPHY);
 	tmp |= (1 << 11);
 	intel_sbi_write(dev_priv, 0x2108, tmp, SBI_MPHY);
 	tmp = intel_sbi_read(dev_priv, 0x206C, SBI_MPHY);
 	tmp |= (1 << 24) | (1 << 21) | (1 << 18);
 	intel_sbi_write(dev_priv, 0x206C, tmp, SBI_MPHY);
 	tmp = intel_sbi_read(dev_priv, 0x216C, SBI_MPHY);
 	tmp |= (1 << 24) | (1 << 21) | (1 << 18);
 	intel_sbi_write(dev_priv, 0x216C, tmp, SBI_MPHY);
 		tmp = intel_sbi_read(dev_priv, 0x2080, SBI_MPHY);
 		tmp &= ~(7 << 13);
 		tmp |= (5 << 13);
 		intel_sbi_write(dev_priv, 0x2080, tmp, SBI_MPHY);
 		tmp = intel_sbi_read(dev_priv, 0x2180, SBI_MPHY);
 		tmp &= ~(7 << 13);
 		tmp |= (5 << 13);
 		intel_sbi_write(dev_priv, 0x2180, tmp, SBI_MPHY);
 	tmp = intel_sbi_read(dev_priv, 0x208C, SBI_MPHY);
 	tmp &= ~0xFF;
 	tmp |= 0x1C;
 	intel_sbi_write(dev_priv, 0x208C, tmp, SBI_MPHY);
 	tmp = intel_sbi_read(dev_priv, 0x218C, SBI_MPHY);
 	tmp &= ~0xFF;
 	tmp |= 0x1C;
 	intel_sbi_write(dev_priv, 0x218C, tmp, SBI_MPHY);
 	tmp = intel_sbi_read(dev_priv, 0x2098, SBI_MPHY);
 	tmp &= ~(0xFF << 16);
 	tmp |= (0x1C << 16);
 	intel_sbi_write(dev_priv, 0x2098, tmp, SBI_MPHY);
 	tmp = intel_sbi_read(dev_priv, 0x2198, SBI_MPHY);
 	tmp &= ~(0xFF << 16);
 	tmp |= (0x1C << 16);
 	intel_sbi_write(dev_priv, 0x2198, tmp, SBI_MPHY);
 		tmp = intel_sbi_read(dev_priv, 0x20C4, SBI_MPHY);
 		tmp |= (1 << 27);
 		intel_sbi_write(dev_priv, 0x20C4, tmp, SBI_MPHY);
 		tmp = intel_sbi_read(dev_priv, 0x21C4, SBI_MPHY);
 		tmp |= (1 << 27);
 		intel_sbi_write(dev_priv, 0x21C4, tmp, SBI_MPHY);
 		tmp = intel_sbi_read(dev_priv, 0x20EC, SBI_MPHY);
 		tmp &= ~(0xF << 28);
 		tmp |= (4 << 28);
 		intel_sbi_write(dev_priv, 0x20EC, tmp, SBI_MPHY);
 		tmp = intel_sbi_read(dev_priv, 0x21EC, SBI_MPHY);
 		tmp &= ~(0xF << 28);
 		tmp |= (4 << 28);
 		intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY);
+}
 /* Implements 3 different sequences from BSpec chapter "Display iCLK
  * Programming" based on the parameters passed:
  * - Sequence to enable CLKOUT_DP
  * - Sequence to enable CLKOUT_DP without spread
  * - Sequence to enable CLKOUT_DP for FDI usage and configure PCH FDI I/O
  */
 static void lpt_enable_clkout_dp(struct drm_device *dev, bool with_spread,
 				 bool with_fdi)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t reg, tmp;
 	if (WARN(with_fdi && !with_spread, "FDI requires downspread\n"))
 		with_spread = true;
 	if (WARN(dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE &&
 		 with_fdi, "LP PCH doesn't have FDI\n"))
 		with_fdi = false;
 	mutex_lock(&dev_priv->dpio_lock);
 	tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
 	tmp &= ~SBI_SSCCTL_DISABLE;
 	tmp |= SBI_SSCCTL_PATHALT;
 	intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
 	udelay(24);
 	if (with_spread) {
 		tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
 		tmp &= ~SBI_SSCCTL_PATHALT;
 		intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
 		if (with_fdi) {
 			lpt_reset_fdi_mphy(dev_priv);
 			lpt_program_fdi_mphy(dev_priv);
+		}
+	}
 	reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
 	       SBI_GEN0 : SBI_DBUFF0;
 	tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
 	tmp |= SBI_GEN0_CFG_BUFFENABLE_DISABLE;
 	intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
 	mutex_unlock(&dev_priv->dpio_lock);
+}
 /* Sequence to disable CLKOUT_DP */
 static void lpt_disable_clkout_dp(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t reg, tmp;
 	mutex_lock(&dev_priv->dpio_lock);
 	reg = (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) ?
 	       SBI_GEN0 : SBI_DBUFF0;
 	tmp = intel_sbi_read(dev_priv, reg, SBI_ICLK);
 	tmp &= ~SBI_GEN0_CFG_BUFFENABLE_DISABLE;
 	intel_sbi_write(dev_priv, reg, tmp, SBI_ICLK);
 	tmp = intel_sbi_read(dev_priv, SBI_SSCCTL, SBI_ICLK);
 	if (!(tmp & SBI_SSCCTL_DISABLE)) {
 		if (!(tmp & SBI_SSCCTL_PATHALT)) {
 			tmp |= SBI_SSCCTL_PATHALT;
 			intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
 			udelay(32);
+		}
 		tmp |= SBI_SSCCTL_DISABLE;
 		intel_sbi_write(dev_priv, SBI_SSCCTL, tmp, SBI_ICLK);
+	}
 	mutex_unlock(&dev_priv->dpio_lock);
+}
 static void lpt_init_pch_refclk(struct drm_device *dev)
+{
 	struct drm_mode_config *mode_config = &dev->mode_config;
 	struct intel_encoder *encoder;
 	bool has_vga = false;
 	list_for_each_entry(encoder, &mode_config->encoder_list, base.head) {
 		switch (encoder->type) {
 		case INTEL_OUTPUT_ANALOG:
 			has_vga = true;
 			break;
+		}
+	}
 	if (has_vga)
 		lpt_enable_clkout_dp(dev, true, true);
 	else
 		lpt_disable_clkout_dp(dev);
+}
 /*
  * Initialize reference clocks when the driver loads
  */
 void intel_init_pch_refclk(struct drm_device *dev)
+{
 	if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
 		ironlake_init_pch_refclk(dev);
 	else if (HAS_PCH_LPT(dev))
 		lpt_init_pch_refclk(dev);
+}
 static int ironlake_get_refclk(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *encoder;
 	int num_connectors = 0;
 	bool is_lvds = false;
 	for_each_encoder_on_crtc(dev, crtc, encoder) {
 		switch (encoder->type) {
 		case INTEL_OUTPUT_LVDS:
 			is_lvds = true;
 			break;
+		}
 		num_connectors++;
+	}
 	if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
 		DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
 			      dev_priv->vbt.lvds_ssc_freq);
 		return dev_priv->vbt.lvds_ssc_freq;
+	}
 	return 120000;
+}
 static void ironlake_set_pipeconf(struct drm_crtc *crtc)
+{
 	struct drm_i915_private *dev_priv = crtc->dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
 	uint32_t val;
 	val = 0;
 	switch (intel_crtc->config.pipe_bpp) {
 	case 18:
 		val |= PIPECONF_6BPC;
 		break;
 	case 24:
 		val |= PIPECONF_8BPC;
 		break;
 	case 30:
 		val |= PIPECONF_10BPC;
 		break;
 	case 36:
 		val |= PIPECONF_12BPC;
 		break;
 	default:
 		/* Case prevented by intel_choose_pipe_bpp_dither. */
 		BUG();
+	}
 	if (intel_crtc->config.dither)
 		val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
 	if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
 		val |= PIPECONF_INTERLACED_ILK;
 	else
 		val |= PIPECONF_PROGRESSIVE;
 	if (intel_crtc->config.limited_color_range)
 		val |= PIPECONF_COLOR_RANGE_SELECT;
 	I915_WRITE(PIPECONF(pipe), val);
 	POSTING_READ(PIPECONF(pipe));
+}
 /*
  * Set up the pipe CSC unit.
+ *
  * Currently only full range RGB to limited range RGB conversion
  * is supported, but eventually this should handle various
  * RGB<->YCbCr scenarios as well.
  */
 static void intel_set_pipe_csc(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
 	uint16_t coeff = 0x7800; /* 1.0 */
 	/*
 	 * TODO: Check what kind of values actually come out of the pipe
 	 * with these coeff/postoff values and adjust to get the best
 	 * accuracy. Perhaps we even need to take the bpc value into
 	 * consideration.
 	 */
 	if (intel_crtc->config.limited_color_range)
 		coeff = ((235 - 16) * (1 << 12) / 255) & 0xff8; /* 0.xxx... */
 	/*
 	 * GY/GU and RY/RU should be the other way around according
 	 * to BSpec, but reality doesn't agree. Just set them up in
 	 * a way that results in the correct picture.
 	 */
 	I915_WRITE(PIPE_CSC_COEFF_RY_GY(pipe), coeff << 16);
 	I915_WRITE(PIPE_CSC_COEFF_BY(pipe), 0);
 	I915_WRITE(PIPE_CSC_COEFF_RU_GU(pipe), coeff);
 	I915_WRITE(PIPE_CSC_COEFF_BU(pipe), 0);
 	I915_WRITE(PIPE_CSC_COEFF_RV_GV(pipe), 0);
 	I915_WRITE(PIPE_CSC_COEFF_BV(pipe), coeff << 16);
 	I915_WRITE(PIPE_CSC_PREOFF_HI(pipe), 0);
 	I915_WRITE(PIPE_CSC_PREOFF_ME(pipe), 0);
 	I915_WRITE(PIPE_CSC_PREOFF_LO(pipe), 0);
 	if (INTEL_INFO(dev)->gen > 6) {
 		uint16_t postoff = 0;
 		if (intel_crtc->config.limited_color_range)
 			postoff = (16 * (1 << 12) / 255) & 0x1fff;
 		I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), postoff);
 		I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
 		I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
 		I915_WRITE(PIPE_CSC_MODE(pipe), 0);
 	} else {
 		uint32_t mode = CSC_MODE_YUV_TO_RGB;
 		if (intel_crtc->config.limited_color_range)
 			mode |= CSC_BLACK_SCREEN_OFFSET;
 		I915_WRITE(PIPE_CSC_MODE(pipe), mode);
+	}
+}
 static void haswell_set_pipeconf(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	enum pipe pipe = intel_crtc->pipe;
 	enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
 	uint32_t val;
 	val = 0;
 	if (IS_HASWELL(dev) && intel_crtc->config.dither)
 		val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
 	if (intel_crtc->config.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)
 		val |= PIPECONF_INTERLACED_ILK;
 	else
 		val |= PIPECONF_PROGRESSIVE;
 	I915_WRITE(PIPECONF(cpu_transcoder), val);
 	POSTING_READ(PIPECONF(cpu_transcoder));
 	I915_WRITE(GAMMA_MODE(intel_crtc->pipe), GAMMA_MODE_MODE_8BIT);
 	POSTING_READ(GAMMA_MODE(intel_crtc->pipe));
 	if (IS_BROADWELL(dev)) {
 		val = 0;
 		switch (intel_crtc->config.pipe_bpp) {
 		case 18:
 			val |= PIPEMISC_DITHER_6_BPC;
 			break;
 		case 24:
 			val |= PIPEMISC_DITHER_8_BPC;
 			break;
 		case 30:
 			val |= PIPEMISC_DITHER_10_BPC;
 			break;
 		case 36:
 			val |= PIPEMISC_DITHER_12_BPC;
 			break;
 		default:
 			/* Case prevented by pipe_config_set_bpp. */
 			BUG();
+		}
 		if (intel_crtc->config.dither)
 			val |= PIPEMISC_DITHER_ENABLE | PIPEMISC_DITHER_TYPE_SP;
 		I915_WRITE(PIPEMISC(pipe), val);
+	}
+}
 static bool ironlake_compute_clocks(struct drm_crtc *crtc,
 				    intel_clock_t *clock,
 				    bool *has_reduced_clock,
 				    intel_clock_t *reduced_clock)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *intel_encoder;
 	int refclk;
 	const intel_limit_t *limit;
 	bool ret, is_lvds = false;
 	for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
 		switch (intel_encoder->type) {
 		case INTEL_OUTPUT_LVDS:
 			is_lvds = true;
 			break;
+		}
+	}
 	refclk = ironlake_get_refclk(crtc);
 	/*
 	 * Returns a set of divisors for the desired target clock with the given
 	 * refclk, or FALSE.  The returned values represent the clock equation:
 	 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
 	 */
 	limit = intel_limit(crtc, refclk);
 	ret = dev_priv->display.find_dpll(limit, crtc,
 					  to_intel_crtc(crtc)->config.port_clock,
 					  refclk, NULL, clock);
 	if (!ret)
 		return false;
 	if (is_lvds && dev_priv->lvds_downclock_avail) {
 		/*
 		 * Ensure we match the reduced clock's P to the target clock.
 		 * If the clocks don't match, we can't switch the display clock
 		 * by using the FP0/FP1. In such case we will disable the LVDS
 		 * downclock feature.
 		*/
 		*has_reduced_clock =
 			dev_priv->display.find_dpll(limit, crtc,
 						     dev_priv->lvds_downclock,
 						    refclk, clock,
 						     reduced_clock);
+	}
 	return true;
+}
 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp)
+{
 	/*
 	 * Account for spread spectrum to avoid
 	 * oversubscribing the link. Max center spread
 	 * is 2.5%; use 5% for safety's sake.
 	 */
 	u32 bps = target_clock * bpp * 21 / 20;
-	return bps / (link_bw * 8) + 1;
+	return DIV_ROUND_UP(bps, link_bw * 8);
+}
 static bool ironlake_needs_fb_cb_tune(struct dpll *dpll, int factor)
+{
 	return i9xx_dpll_compute_m(dpll) < factor * dpll->n;
+}
 static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
 				      u32 *fp,
 				      intel_clock_t *reduced_clock, u32 *fp2)
+{
 	struct drm_crtc *crtc = &intel_crtc->base;
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *intel_encoder;
 	uint32_t dpll;
 	int factor, num_connectors = 0;
 	bool is_lvds = false, is_sdvo = false;
 	for_each_encoder_on_crtc(dev, crtc, intel_encoder) {
 		switch (intel_encoder->type) {
 		case INTEL_OUTPUT_LVDS:
 			is_lvds = true;
 			break;
 		case INTEL_OUTPUT_SDVO:
 		case INTEL_OUTPUT_HDMI:
 			is_sdvo = true;
 			break;
+		}
 		num_connectors++;
+	}
     /* Enable autotuning of the PLL clock (if permissible) */
     factor = 21;
     if (is_lvds) {
         if ((intel_panel_use_ssc(dev_priv) &&
 		     dev_priv->vbt.lvds_ssc_freq == 100000) ||
 		    (HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
             factor = 25;
 	} else if (intel_crtc->config.sdvo_tv_clock)
         factor = 20;
 	if (ironlake_needs_fb_cb_tune(&intel_crtc->config.dpll, factor))
 		*fp |= FP_CB_TUNE;
 	if (fp2 && (reduced_clock->m < factor * reduced_clock->n))
 		*fp2 |= FP_CB_TUNE;
     dpll = 0;
     if (is_lvds)
         dpll |= DPLLB_MODE_LVDS;
     else
         dpll |= DPLLB_MODE_DAC_SERIAL;
 			dpll |= (intel_crtc->config.pixel_multiplier - 1)
 				<< PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT;
 	if (is_sdvo)
 		dpll |= DPLL_SDVO_HIGH_SPEED;
 	if (intel_crtc->config.has_dp_encoder)
 		dpll |= DPLL_SDVO_HIGH_SPEED;
     /* compute bitmask from p1 value */
 	dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT;
     /* also FPA1 */
 	dpll |= (1 << (intel_crtc->config.dpll.p1 - 1)) << DPLL_FPA1_P1_POST_DIV_SHIFT;
 	switch (intel_crtc->config.dpll.p2) {
     case 5:
         dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
         break;
     case 7:
         dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
         break;
     case 10:
         dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
         break;
     case 14:
         dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
         break;
+    }
 	if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2)
         dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
     else
         dpll |= PLL_REF_INPUT_DREFCLK;
 	return dpll | DPLL_VCO_ENABLE;
+}
 static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
 				  int x, int y,
 				  struct drm_framebuffer *fb)
+{
 	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int pipe = intel_crtc->pipe;
-	int plane = intel_crtc->plane;
 	int num_connectors = 0;
 	intel_clock_t clock, reduced_clock;
 	u32 dpll = 0, fp = 0, fp2 = 0;
 	bool ok, has_reduced_clock = false;
 	bool is_lvds = false;
 	struct intel_encoder *encoder;
 	struct intel_shared_dpll *pll;
-	int ret;
 	for_each_encoder_on_crtc(dev, crtc, encoder) {
 		switch (encoder->type) {
 		case INTEL_OUTPUT_LVDS:
 			is_lvds = true;
 			break;
+		}
 		num_connectors++;
+	}
 	WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
 	     "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
 	ok = ironlake_compute_clocks(crtc, &clock,
 				     &has_reduced_clock, &reduced_clock);
 	if (!ok && !intel_crtc->config.clock_set) {
 		DRM_ERROR("Couldn't find PLL settings for mode!\n");
 		return -EINVAL;
+	}
 	/* Compat-code for transition, will disappear. */
 	if (!intel_crtc->config.clock_set) {
 		intel_crtc->config.dpll.n = clock.n;
 		intel_crtc->config.dpll.m1 = clock.m1;
 		intel_crtc->config.dpll.m2 = clock.m2;
 		intel_crtc->config.dpll.p1 = clock.p1;
 		intel_crtc->config.dpll.p2 = clock.p2;
+	}
 	/* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
 	if (intel_crtc->config.has_pch_encoder) {
 		fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll);
 	if (has_reduced_clock)
 			fp2 = i9xx_dpll_compute_fp(&reduced_clock);
 		dpll = ironlake_compute_dpll(intel_crtc,
 					     &fp, &reduced_clock,
-				     has_reduced_clock ? &fp2 : NULL);
+					     has_reduced_clock ? &fp2 : NULL);
 		intel_crtc->config.dpll_hw_state.dpll = dpll;
 		intel_crtc->config.dpll_hw_state.fp0 = fp;
 		if (has_reduced_clock)
 			intel_crtc->config.dpll_hw_state.fp1 = fp2;
 		else
 			intel_crtc->config.dpll_hw_state.fp1 = fp;
 		pll = intel_get_shared_dpll(intel_crtc);
 		if (pll == NULL) {
 			DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
-					 pipe_name(pipe));
+					 pipe_name(intel_crtc->pipe));
 			return -EINVAL;
+        }
 	} else
 		intel_put_shared_dpll(intel_crtc);
-	if (intel_crtc->config.has_dp_encoder)
-		intel_dp_set_m_n(intel_crtc);
-	if (is_lvds && has_reduced_clock && i915_powersave)
+	if (is_lvds && has_reduced_clock && i915.powersave)
 		intel_crtc->lowfreq_avail = true;
 	else
 		intel_crtc->lowfreq_avail = false;
-	intel_set_pipe_timings(intel_crtc);
-	if (intel_crtc->config.has_pch_encoder) {
-		intel_cpu_transcoder_set_m_n(intel_crtc,
-					     &intel_crtc->config.fdi_m_n);
-	}
-	ironlake_set_pipeconf(crtc);
-	/* Set up the display plane register */
-	I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE);
-	POSTING_READ(DSPCNTR(plane));
-	ret = intel_pipe_set_base(crtc, x, y, fb);
-	return ret;
+	return 0;
+}
 static void intel_pch_transcoder_get_m_n(struct intel_crtc *crtc,
 					 struct intel_link_m_n *m_n)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum pipe pipe = crtc->pipe;
 	m_n->link_m = I915_READ(PCH_TRANS_LINK_M1(pipe));
 	m_n->link_n = I915_READ(PCH_TRANS_LINK_N1(pipe));
 	m_n->gmch_m = I915_READ(PCH_TRANS_DATA_M1(pipe))
 		& ~TU_SIZE_MASK;
 	m_n->gmch_n = I915_READ(PCH_TRANS_DATA_N1(pipe));
 	m_n->tu = ((I915_READ(PCH_TRANS_DATA_M1(pipe))
 		    & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
+}
 static void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc,
 					 enum transcoder transcoder,
 					 struct intel_link_m_n *m_n)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum pipe pipe = crtc->pipe;
 	if (INTEL_INFO(dev)->gen >= 5) {
 		m_n->link_m = I915_READ(PIPE_LINK_M1(transcoder));
 		m_n->link_n = I915_READ(PIPE_LINK_N1(transcoder));
 		m_n->gmch_m = I915_READ(PIPE_DATA_M1(transcoder))
 					& ~TU_SIZE_MASK;
 		m_n->gmch_n = I915_READ(PIPE_DATA_N1(transcoder));
 		m_n->tu = ((I915_READ(PIPE_DATA_M1(transcoder))
 				   & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
 	} else {
 		m_n->link_m = I915_READ(PIPE_LINK_M_G4X(pipe));
 		m_n->link_n = I915_READ(PIPE_LINK_N_G4X(pipe));
 		m_n->gmch_m = I915_READ(PIPE_DATA_M_G4X(pipe))
 			& ~TU_SIZE_MASK;
 		m_n->gmch_n = I915_READ(PIPE_DATA_N_G4X(pipe));
 		m_n->tu = ((I915_READ(PIPE_DATA_M_G4X(pipe))
 			    & TU_SIZE_MASK) >> TU_SIZE_SHIFT) + 1;
+	}
+}
 void intel_dp_get_m_n(struct intel_crtc *crtc,
 		      struct intel_crtc_config *pipe_config)
+{
 	if (crtc->config.has_pch_encoder)
 		intel_pch_transcoder_get_m_n(crtc, &pipe_config->dp_m_n);
 	else
 		intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
 					     &pipe_config->dp_m_n);
+}
 static void ironlake_get_fdi_m_n_config(struct intel_crtc *crtc,
 					struct intel_crtc_config *pipe_config)
+{
 	intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
 				     &pipe_config->fdi_m_n);
+}
 static void ironlake_get_pfit_config(struct intel_crtc *crtc,
 				     struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t tmp;
 	tmp = I915_READ(PF_CTL(crtc->pipe));
 	if (tmp & PF_ENABLE) {
 		pipe_config->pch_pfit.enabled = true;
 		pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe));
 		pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe));
 		/* We currently do not free assignements of panel fitters on
 		 * ivb/hsw (since we don't use the higher upscaling modes which
 		 * differentiates them) so just WARN about this case for now. */
 		if (IS_GEN7(dev)) {
 			WARN_ON((tmp & PF_PIPE_SEL_MASK_IVB) !=
 				PF_PIPE_SEL_IVB(crtc->pipe));
+		}
+	}
+}
+static void ironlake_get_plane_config(struct intel_crtc *crtc,
+				      struct intel_plane_config *plane_config)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	u32 val, base, offset;
+	int pipe = crtc->pipe, plane = crtc->plane;
+	int fourcc, pixel_format;
+	int aligned_height;
+	crtc->base.primary->fb = kzalloc(sizeof(struct intel_framebuffer), GFP_KERNEL);
+	if (!crtc->base.primary->fb) {
+		DRM_DEBUG_KMS("failed to alloc fb\n");
+		return;
+	}
+	val = I915_READ(DSPCNTR(plane));
+	if (INTEL_INFO(dev)->gen >= 4)
+		if (val & DISPPLANE_TILED)
+			plane_config->tiled = true;
+	pixel_format = val & DISPPLANE_PIXFORMAT_MASK;
+	fourcc = intel_format_to_fourcc(pixel_format);
+	crtc->base.primary->fb->pixel_format = fourcc;
+	crtc->base.primary->fb->bits_per_pixel =
+		drm_format_plane_cpp(fourcc, 0) * 8;
+	base = I915_READ(DSPSURF(plane)) & 0xfffff000;
+	if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
+		offset = I915_READ(DSPOFFSET(plane));
+	} else {
+		if (plane_config->tiled)
+			offset = I915_READ(DSPTILEOFF(plane));
+		else
+			offset = I915_READ(DSPLINOFF(plane));
+	}
+	plane_config->base = base;
+	val = I915_READ(PIPESRC(pipe));
+	crtc->base.primary->fb->width = ((val >> 16) & 0xfff) + 1;
+	crtc->base.primary->fb->height = ((val >> 0) & 0xfff) + 1;
+	val = I915_READ(DSPSTRIDE(pipe));
+	crtc->base.primary->fb->pitches[0] = val & 0xffffff80;
+	aligned_height = intel_align_height(dev, crtc->base.primary->fb->height,
+					    plane_config->tiled);
+	plane_config->size = 16*1024*1024;
+	DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n",
+		      pipe, plane, crtc->base.primary->fb->width,
+		      crtc->base.primary->fb->height,
+		      crtc->base.primary->fb->bits_per_pixel, base,
+		      crtc->base.primary->fb->pitches[0],
+		      plane_config->size);
+}
 static bool ironlake_get_pipe_config(struct intel_crtc *crtc,
 				     struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t tmp;
+	if (!intel_display_power_enabled(dev_priv,
+					 POWER_DOMAIN_PIPE(crtc->pipe)))
+		return false;
 	pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
 	pipe_config->shared_dpll = DPLL_ID_PRIVATE;
 	tmp = I915_READ(PIPECONF(crtc->pipe));
 	if (!(tmp & PIPECONF_ENABLE))
 		return false;
 	switch (tmp & PIPECONF_BPC_MASK) {
 	case PIPECONF_6BPC:
 		pipe_config->pipe_bpp = 18;
 		break;
 	case PIPECONF_8BPC:
 		pipe_config->pipe_bpp = 24;
 		break;
 	case PIPECONF_10BPC:
 		pipe_config->pipe_bpp = 30;
 		break;
 	case PIPECONF_12BPC:
 		pipe_config->pipe_bpp = 36;
 		break;
 	default:
 		break;
+	}
+	if (tmp & PIPECONF_COLOR_RANGE_SELECT)
+		pipe_config->limited_color_range = true;
 	if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
 		struct intel_shared_dpll *pll;
 		pipe_config->has_pch_encoder = true;
 		tmp = I915_READ(FDI_RX_CTL(crtc->pipe));
 		pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
 					  FDI_DP_PORT_WIDTH_SHIFT) + 1;
 		ironlake_get_fdi_m_n_config(crtc, pipe_config);
 		if (HAS_PCH_IBX(dev_priv->dev)) {
 			pipe_config->shared_dpll =
 				(enum intel_dpll_id) crtc->pipe;
 		} else {
 			tmp = I915_READ(PCH_DPLL_SEL);
 			if (tmp & TRANS_DPLLB_SEL(crtc->pipe))
 				pipe_config->shared_dpll = DPLL_ID_PCH_PLL_B;
 			else
 				pipe_config->shared_dpll = DPLL_ID_PCH_PLL_A;
+		}
 		pll = &dev_priv->shared_dplls[pipe_config->shared_dpll];
 		WARN_ON(!pll->get_hw_state(dev_priv, pll,
 					   &pipe_config->dpll_hw_state));
 		tmp = pipe_config->dpll_hw_state.dpll;
 		pipe_config->pixel_multiplier =
 			((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
 			 >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
 		ironlake_pch_clock_get(crtc, pipe_config);
 	} else {
 		pipe_config->pixel_multiplier = 1;
+	}
 	intel_get_pipe_timings(crtc, pipe_config);
 	ironlake_get_pfit_config(crtc, pipe_config);
 	return true;
+}
 static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
+{
 	struct drm_device *dev = dev_priv->dev;
-	struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
 	struct intel_crtc *crtc;
-	unsigned long irqflags;
-	uint32_t val;
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
+	for_each_intel_crtc(dev, crtc)
 		WARN(crtc->active, "CRTC for pipe %c enabled\n",
 		     pipe_name(crtc->pipe));
 	WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
-	WARN(plls->spll_refcount, "SPLL enabled\n");
+	WARN(I915_READ(SPLL_CTL) & SPLL_PLL_ENABLE, "SPLL enabled\n");
-	WARN(plls->wrpll1_refcount, "WRPLL1 enabled\n");
+	WARN(I915_READ(WRPLL_CTL1) & WRPLL_PLL_ENABLE, "WRPLL1 enabled\n");
-	WARN(plls->wrpll2_refcount, "WRPLL2 enabled\n");
+	WARN(I915_READ(WRPLL_CTL2) & WRPLL_PLL_ENABLE, "WRPLL2 enabled\n");
 	WARN(I915_READ(PCH_PP_STATUS) & PP_ON, "Panel power on\n");
 	WARN(I915_READ(BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
 	     "CPU PWM1 enabled\n");
+	if (IS_HASWELL(dev))
 	WARN(I915_READ(HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
 	     "CPU PWM2 enabled\n");
 	WARN(I915_READ(BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
 	     "PCH PWM1 enabled\n");
 	WARN(I915_READ(UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
 	     "Utility pin enabled\n");
 	WARN(I915_READ(PCH_GTC_CTL) & PCH_GTC_ENABLE, "PCH GTC enabled\n");
+	/*
+	 * In theory we can still leave IRQs enabled, as long as only the HPD
+	 * interrupts remain enabled. We used to check for that, but since it's
+	 * gen-specific and since we only disable LCPLL after we fully disable
+	 * the interrupts, the check below should be enough.
+	 */
+	WARN(intel_irqs_enabled(dev_priv), "IRQs enabled\n");
+}
+static uint32_t hsw_read_dcomp(struct drm_i915_private *dev_priv)
+{
+	struct drm_device *dev = dev_priv->dev;
-	spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+	if (IS_HASWELL(dev))
+		return I915_READ(D_COMP_HSW);
-	val = I915_READ(DEIMR);
+	else
+		return I915_READ(D_COMP_BDW);
+}
-	WARN((val | DE_PCH_EVENT_IVB) != 0xffffffff,
+static void hsw_write_dcomp(struct drm_i915_private *dev_priv, uint32_t val)
+{
+	struct drm_device *dev = dev_priv->dev;
-	     "Unexpected DEIMR bits enabled: 0x%x\n", val);
+	if (IS_HASWELL(dev)) {
-	val = I915_READ(SDEIMR);
+		mutex_lock(&dev_priv->rps.hw_lock);
+		if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP,
-	WARN((val | SDE_HOTPLUG_MASK_CPT) != 0xffffffff,
+					    val))
-	     "Unexpected SDEIMR bits enabled: 0x%x\n", val);
+			DRM_ERROR("Failed to write to D_COMP\n");
+		mutex_unlock(&dev_priv->rps.hw_lock);
+	} else {
+		I915_WRITE(D_COMP_BDW, val);
+		POSTING_READ(D_COMP_BDW);
 	spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+}
 /*
  * This function implements pieces of two sequences from BSpec:
  * - Sequence for display software to disable LCPLL
  * - Sequence for display software to allow package C8+
  * The steps implemented here are just the steps that actually touch the LCPLL
  * register. Callers should take care of disabling all the display engine
  * functions, doing the mode unset, fixing interrupts, etc.
  */
 static void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
 		       bool switch_to_fclk, bool allow_power_down)
+{
 	uint32_t val;
 	assert_can_disable_lcpll(dev_priv);
 	val = I915_READ(LCPLL_CTL);
 	if (switch_to_fclk) {
 		val |= LCPLL_CD_SOURCE_FCLK;
 		I915_WRITE(LCPLL_CTL, val);
 		if (wait_for_atomic_us(I915_READ(LCPLL_CTL) &
 				       LCPLL_CD_SOURCE_FCLK_DONE, 1))
 			DRM_ERROR("Switching to FCLK failed\n");
 		val = I915_READ(LCPLL_CTL);
+	}
 	val |= LCPLL_PLL_DISABLE;
 	I915_WRITE(LCPLL_CTL, val);
 	POSTING_READ(LCPLL_CTL);
 	if (wait_for((I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK) == 0, 1))
 		DRM_ERROR("LCPLL still locked\n");
-	val = I915_READ(D_COMP);
+	val = hsw_read_dcomp(dev_priv);
 	val |= D_COMP_COMP_DISABLE;
-	mutex_lock(&dev_priv->rps.hw_lock);
-	if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, val))
-		DRM_ERROR("Failed to disable D_COMP\n");
-	mutex_unlock(&dev_priv->rps.hw_lock);
-	POSTING_READ(D_COMP);
+	hsw_write_dcomp(dev_priv, val);
-    delay(1);
+	ndelay(100);
 	if (wait_for((hsw_read_dcomp(dev_priv) & D_COMP_RCOMP_IN_PROGRESS) == 0,
-	if (wait_for((I915_READ(D_COMP) & D_COMP_RCOMP_IN_PROGRESS) == 0, 1))
+))
 		DRM_ERROR("D_COMP RCOMP still in progress\n");
 	if (allow_power_down) {
 		val = I915_READ(LCPLL_CTL);
 		val |= LCPLL_POWER_DOWN_ALLOW;
 		I915_WRITE(LCPLL_CTL, val);
 		POSTING_READ(LCPLL_CTL);
+	}
+}
 /*
  * Fully restores LCPLL, disallowing power down and switching back to LCPLL
  * source.
  */
 static void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
+{
 	uint32_t val;
+	unsigned long irqflags;
 	val = I915_READ(LCPLL_CTL);
 	if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
 		    LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
 		return;
+	/*
+	 * Make sure we're not on PC8 state before disabling PC8, otherwise
+	 * we'll hang the machine. To prevent PC8 state, just enable force_wake.
+	 *
+	 * The other problem is that hsw_restore_lcpll() is called as part of
+	 * the runtime PM resume sequence, so we can't just call
+	 * gen6_gt_force_wake_get() because that function calls
+	 * intel_runtime_pm_get(), and we can't change the runtime PM refcount
+	 * while we are on the resume sequence. So to solve this problem we have
-	/* Make sure we're not on PC8 state before disabling PC8, otherwise
+	 * to call special forcewake code that doesn't touch runtime PM and
+	 * doesn't enable the forcewake delayed work.
+	 */
+	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
-	 * we'll hang the machine! */
+	if (dev_priv->uncore.forcewake_count++ == 0)
+		dev_priv->uncore.funcs.force_wake_get(dev_priv, FORCEWAKE_ALL);
-	gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);
+	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
 	if (val & LCPLL_POWER_DOWN_ALLOW) {
 		val &= ~LCPLL_POWER_DOWN_ALLOW;
 		I915_WRITE(LCPLL_CTL, val);
 		POSTING_READ(LCPLL_CTL);
+	}
-	val = I915_READ(D_COMP);
+	val = hsw_read_dcomp(dev_priv);
 	val |= D_COMP_COMP_FORCE;
 	val &= ~D_COMP_COMP_DISABLE;
-	mutex_lock(&dev_priv->rps.hw_lock);
-	if (sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_D_COMP, val))
-		DRM_ERROR("Failed to enable D_COMP\n");
-	mutex_unlock(&dev_priv->rps.hw_lock);
-	POSTING_READ(D_COMP);
+	hsw_write_dcomp(dev_priv, val);
 	val = I915_READ(LCPLL_CTL);
 	val &= ~LCPLL_PLL_DISABLE;
 	I915_WRITE(LCPLL_CTL, val);
 	if (wait_for(I915_READ(LCPLL_CTL) & LCPLL_PLL_LOCK, 5))
 		DRM_ERROR("LCPLL not locked yet\n");
 	if (val & LCPLL_CD_SOURCE_FCLK) {
 		val = I915_READ(LCPLL_CTL);
 		val &= ~LCPLL_CD_SOURCE_FCLK;
 		I915_WRITE(LCPLL_CTL, val);
 		if (wait_for_atomic_us((I915_READ(LCPLL_CTL) &
 					LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
 			DRM_ERROR("Switching back to LCPLL failed\n");
+	}
+	/* See the big comment above. */
+	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
+	if (--dev_priv->uncore.forcewake_count == 0)
+		dev_priv->uncore.funcs.force_wake_put(dev_priv, FORCEWAKE_ALL);
-	gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);
+	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
+}
+/*
+ * Package states C8 and deeper are really deep PC states that can only be
+ * reached when all the devices on the system allow it, so even if the graphics
+ * device allows PC8+, it doesn't mean the system will actually get to these
+ * states. Our driver only allows PC8+ when going into runtime PM.
+ *
+ * The requirements for PC8+ are that all the outputs are disabled, the power
+ * well is disabled and most interrupts are disabled, and these are also
+ * requirements for runtime PM. When these conditions are met, we manually do
+ * the other conditions: disable the interrupts, clocks and switch LCPLL refclk
+ * to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
+ * hang the machine.
+ *
+ * When we really reach PC8 or deeper states (not just when we allow it) we lose
+ * the state of some registers, so when we come back from PC8+ we need to
+ * restore this state. We don't get into PC8+ if we're not in RC6, so we don't
+ * need to take care of the registers kept by RC6. Notice that this happens even
+ * if we don't put the device in PCI D3 state (which is what currently happens
+ * because of the runtime PM support).
+ *
+ * For more, read "Display Sequences for Package C8" on the hardware
-}
+ * documentation.
  */
-void hsw_enable_pc8_work(struct work_struct *__work)
-{
-	struct drm_i915_private *dev_priv =
-		container_of(to_delayed_work(__work), struct drm_i915_private,
+void hsw_enable_pc8(struct drm_i915_private *dev_priv)
 			     pc8.enable_work);
 	struct drm_device *dev = dev_priv->dev;
 	uint32_t val;
-	WARN_ON(!HAS_PC8(dev));
-	if (dev_priv->pc8.enabled)
-		return;
-	DRM_DEBUG_KMS("Enabling package C8+\n");
-	dev_priv->pc8.enabled = true;
+	DRM_DEBUG_KMS("Enabling package C8+\n");
 	if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
 		val = I915_READ(SOUTH_DSPCLK_GATE_D);
 		val &= ~PCH_LP_PARTITION_LEVEL_DISABLE;
 		I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
+	}
 	lpt_disable_clkout_dp(dev);
-	hsw_pc8_disable_interrupts(dev);
 	hsw_disable_lcpll(dev_priv, true, true);
-	intel_runtime_pm_put(dev_priv);
+}
-static void __hsw_enable_package_c8(struct drm_i915_private *dev_priv)
-{
-	WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
-	WARN(dev_priv->pc8.disable_count < 1,
-	     "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
-	dev_priv->pc8.disable_count--;
-	if (dev_priv->pc8.disable_count != 0)
-		return;
-	schedule_delayed_work(&dev_priv->pc8.enable_work,
-			      msecs_to_jiffies(i915_pc8_timeout));
-}
-static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv)
+void hsw_disable_pc8(struct drm_i915_private *dev_priv)
+{
 	struct drm_device *dev = dev_priv->dev;
 	uint32_t val;
-	WARN_ON(!mutex_is_locked(&dev_priv->pc8.lock));
-	WARN(dev_priv->pc8.disable_count < 0,
-	     "pc8.disable_count: %d\n", dev_priv->pc8.disable_count);
-	dev_priv->pc8.disable_count++;
-	if (dev_priv->pc8.disable_count != 1)
-		return;
-	WARN_ON(!HAS_PC8(dev));
-	cancel_delayed_work_sync(&dev_priv->pc8.enable_work);
-	if (!dev_priv->pc8.enabled)
-		return;
-	DRM_DEBUG_KMS("Disabling package C8+\n");
-	intel_runtime_pm_get(dev_priv);
+	DRM_DEBUG_KMS("Disabling package C8+\n");
 	hsw_restore_lcpll(dev_priv);
-	hsw_pc8_restore_interrupts(dev);
+	hsw_restore_lcpll(dev_priv);
 	lpt_init_pch_refclk(dev);
 	if (dev_priv->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
 		val = I915_READ(SOUTH_DSPCLK_GATE_D);
 		val |= PCH_LP_PARTITION_LEVEL_DISABLE;
 		I915_WRITE(SOUTH_DSPCLK_GATE_D, val);
+	}
 	intel_prepare_ddi(dev);
-	i915_gem_init_swizzling(dev);
-	mutex_lock(&dev_priv->rps.hw_lock);
-	gen6_update_ring_freq(dev);
-	mutex_unlock(&dev_priv->rps.hw_lock);
-	dev_priv->pc8.enabled = false;
+}
-void hsw_enable_package_c8(struct drm_i915_private *dev_priv)
+static void snb_modeset_global_resources(struct drm_device *dev)
-{
-	if (!HAS_PC8(dev_priv->dev))
-		return;
-	mutex_lock(&dev_priv->pc8.lock);
+{
-	__hsw_enable_package_c8(dev_priv);
-	mutex_unlock(&dev_priv->pc8.lock);
+	modeset_update_crtc_power_domains(dev);
 }
-void hsw_disable_package_c8(struct drm_i915_private *dev_priv)
-{
-	if (!HAS_PC8(dev_priv->dev))
-		return;
+static void haswell_modeset_global_resources(struct drm_device *dev)
-	mutex_lock(&dev_priv->pc8.lock);
 	__hsw_disable_package_c8(dev_priv);
-	mutex_unlock(&dev_priv->pc8.lock);
+	modeset_update_crtc_power_domains(dev);
+}
 static int haswell_crtc_mode_set(struct drm_crtc *crtc,
-static bool hsw_can_enable_package_c8(struct drm_i915_private *dev_priv)
+				 int x, int y,
-{
-	struct drm_device *dev = dev_priv->dev;
-	struct intel_crtc *crtc;
+				 struct drm_framebuffer *fb)
-	uint32_t val;
+{
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
-		if (crtc->base.enabled)
-			return false;
-	/* This case is still possible since we have the i915.disable_power_well
-	 * parameter and also the KVMr or something else might be requesting the
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	 * power well. */
-	val = I915_READ(HSW_PWR_WELL_DRIVER);
-	if (val != 0) {
+	if (!intel_ddi_pll_select(intel_crtc))
-		DRM_DEBUG_KMS("Not enabling PC8: power well on\n");
-		return false;
+		return -EINVAL;
-	}
-	return true;
-}
 	intel_crtc->lowfreq_avail = false;
-/* Since we're called from modeset_global_resources there's no way to
+	return 0;
- * symmetrically increase and decrease the refcount, so we use
- * dev_priv->pc8.requirements_met to track whether we already have the refcount
- * or not.
- */
-static void hsw_update_package_c8(struct drm_device *dev)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	bool allow;
+}
-	if (!HAS_PC8(dev_priv->dev))
-		return;
-	if (!i915_enable_pc8)
-		return;
-	mutex_lock(&dev_priv->pc8.lock);
-	allow = hsw_can_enable_package_c8(dev_priv);
-	if (allow == dev_priv->pc8.requirements_met)
-		goto done;
-	dev_priv->pc8.requirements_met = allow;
-	if (allow)
-		__hsw_enable_package_c8(dev_priv);
-	else
-		__hsw_disable_package_c8(dev_priv);
-done:
-	mutex_unlock(&dev_priv->pc8.lock);
-}
-static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv)
-{
-	if (!HAS_PC8(dev_priv->dev))
-		return;
-	mutex_lock(&dev_priv->pc8.lock);
-	if (!dev_priv->pc8.gpu_idle) {
-		dev_priv->pc8.gpu_idle = true;
-		__hsw_enable_package_c8(dev_priv);
-	}
+static void haswell_get_ddi_port_state(struct intel_crtc *crtc,
-	mutex_unlock(&dev_priv->pc8.lock);
-}
-static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv)
-{
-	if (!HAS_PC8(dev_priv->dev))
-		return;
-	mutex_lock(&dev_priv->pc8.lock);
-	if (dev_priv->pc8.gpu_idle) {
-		dev_priv->pc8.gpu_idle = false;
-		__hsw_disable_package_c8(dev_priv);
-	}
+				       struct intel_crtc_config *pipe_config)
-	mutex_unlock(&dev_priv->pc8.lock);
-}
-#define for_each_power_domain(domain, mask)				\
-	for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++)	\
+{
-		if ((1 << (domain)) & (mask))
-static unsigned long get_pipe_power_domains(struct drm_device *dev,
-					    enum pipe pipe, bool pfit_enabled)
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_shared_dpll *pll;
+	enum port port;
-{
+	uint32_t tmp;
+	tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
-	unsigned long mask;
+	port = (tmp & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT;
-	enum transcoder transcoder;
-	transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe);
-	mask = BIT(POWER_DOMAIN_PIPE(pipe));
-	mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder));
-	if (pfit_enabled)
-		mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe));
-	return mask;
-}
+	pipe_config->ddi_pll_sel = I915_READ(PORT_CLK_SEL(port));
+	switch (pipe_config->ddi_pll_sel) {
-void intel_display_set_init_power(struct drm_device *dev, bool enable)
+	case PORT_CLK_SEL_WRPLL1:
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	if (dev_priv->power_domains.init_power_on == enable)
-		return;
 		pipe_config->shared_dpll = DPLL_ID_WRPLL1;
-	if (enable)
+		break;
-		intel_display_power_get(dev, POWER_DOMAIN_INIT);
+	case PORT_CLK_SEL_WRPLL2:
+		pipe_config->shared_dpll = DPLL_ID_WRPLL2;
-	else
+		break;
-		intel_display_power_put(dev, POWER_DOMAIN_INIT);
+	}
-	dev_priv->power_domains.init_power_on = enable;
-}
-static void modeset_update_power_wells(struct drm_device *dev)
-{
-	unsigned long pipe_domains[I915_MAX_PIPES] = { 0, };
-	struct intel_crtc *crtc;
-	/*
-	 * First get all needed power domains, then put all unneeded, to avoid
-	 * any unnecessary toggling of the power wells.
-	 */
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
-		enum intel_display_power_domain domain;
-		if (!crtc->base.enabled)
-			continue;
-		pipe_domains[crtc->pipe] = get_pipe_power_domains(dev,
-						crtc->pipe,
-						crtc->config.pch_pfit.enabled);
-		for_each_power_domain(domain, pipe_domains[crtc->pipe])
-			intel_display_power_get(dev, domain);
-	}
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
-		enum intel_display_power_domain domain;
-		for_each_power_domain(domain, crtc->enabled_power_domains)
-			intel_display_power_put(dev, domain);
-		crtc->enabled_power_domains = pipe_domains[crtc->pipe];
-	}
-	intel_display_set_init_power(dev, false);
-}
-static void haswell_modeset_global_resources(struct drm_device *dev)
-{
-	modeset_update_power_wells(dev);
-	hsw_update_package_c8(dev);
-}
-static int haswell_crtc_mode_set(struct drm_crtc *crtc,
-				 int x, int y,
-				 struct drm_framebuffer *fb)
-{
+	if (pipe_config->shared_dpll >= 0) {
+		pll = &dev_priv->shared_dplls[pipe_config->shared_dpll];
-	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
+		WARN_ON(!pll->get_hw_state(dev_priv, pll,
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int plane = intel_crtc->plane;
-	int ret;
+					   &pipe_config->dpll_hw_state));
-	if (!intel_ddi_pll_select(intel_crtc))
-		return -EINVAL;
-	intel_ddi_pll_enable(intel_crtc);
-	if (intel_crtc->config.has_dp_encoder)
-		intel_dp_set_m_n(intel_crtc);
-	intel_crtc->lowfreq_avail = false;
-	intel_set_pipe_timings(intel_crtc);
 	if (intel_crtc->config.has_pch_encoder) {
 		intel_cpu_transcoder_set_m_n(intel_crtc,
-					     &intel_crtc->config.fdi_m_n);
+	/*
 	 * Haswell has only FDI/PCH transcoder A. It is which is connected to
 	 * DDI E. So just check whether this pipe is wired to DDI E and whether
-	haswell_set_pipeconf(crtc);
+	 * the PCH transcoder is on.
 	 */
-	intel_set_pipe_csc(crtc);
+	if ((port == PORT_E) && I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
 		pipe_config->has_pch_encoder = true;
 	/* Set up the display plane register */
-	I915_WRITE(DSPCNTR(plane), DISPPLANE_GAMMA_ENABLE | DISPPLANE_PIPE_CSC_ENABLE);
+		tmp = I915_READ(FDI_RX_CTL(PIPE_A));
-    POSTING_READ(DSPCNTR(plane));
+		pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
 					  FDI_DP_PORT_WIDTH_SHIFT) + 1;
 	ret = intel_pipe_set_base(crtc, x, y, fb);
 		ironlake_get_fdi_m_n_config(crtc, pipe_config);
     return ret;
+}
 static bool haswell_get_pipe_config(struct intel_crtc *crtc,
 				    struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum intel_display_power_domain pfit_domain;
 	uint32_t tmp;
+	if (!intel_display_power_enabled(dev_priv,
+					 POWER_DOMAIN_PIPE(crtc->pipe)))
+		return false;
 	pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe;
 	pipe_config->shared_dpll = DPLL_ID_PRIVATE;
 	tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
 	if (tmp & TRANS_DDI_FUNC_ENABLE) {
 		enum pipe trans_edp_pipe;
 		switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
 		default:
 			WARN(1, "unknown pipe linked to edp transcoder\n");
 		case TRANS_DDI_EDP_INPUT_A_ONOFF:
 		case TRANS_DDI_EDP_INPUT_A_ON:
 			trans_edp_pipe = PIPE_A;
 			break;
 		case TRANS_DDI_EDP_INPUT_B_ONOFF:
 			trans_edp_pipe = PIPE_B;
 			break;
 		case TRANS_DDI_EDP_INPUT_C_ONOFF:
 			trans_edp_pipe = PIPE_C;
 			break;
+		}
 		if (trans_edp_pipe == crtc->pipe)
 			pipe_config->cpu_transcoder = TRANSCODER_EDP;
+	}
-	if (!intel_display_power_enabled(dev,
+	if (!intel_display_power_enabled(dev_priv,
 			POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder)))
 		return false;
 	tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder));
 	if (!(tmp & PIPECONF_ENABLE))
 		return false;
-	/*
-	 * Haswell has only FDI/PCH transcoder A. It is which is connected to
-	 * DDI E. So just check whether this pipe is wired to DDI E and whether
-	 * the PCH transcoder is on.
-	 */
-	tmp = I915_READ(TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder));
-	if ((tmp & TRANS_DDI_PORT_MASK) == TRANS_DDI_SELECT_PORT(PORT_E) &&
-	    I915_READ(LPT_TRANSCONF) & TRANS_ENABLE) {
-		pipe_config->has_pch_encoder = true;
-		tmp = I915_READ(FDI_RX_CTL(PIPE_A));
-		pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
-					  FDI_DP_PORT_WIDTH_SHIFT) + 1;
-		ironlake_get_fdi_m_n_config(crtc, pipe_config);
 	haswell_get_ddi_port_state(crtc, pipe_config);
 	intel_get_pipe_timings(crtc, pipe_config);
 	pfit_domain = POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe);
-	if (intel_display_power_enabled(dev, pfit_domain))
+	if (intel_display_power_enabled(dev_priv, pfit_domain))
 		ironlake_get_pfit_config(crtc, pipe_config);
 	if (IS_HASWELL(dev))
 	pipe_config->ips_enabled = hsw_crtc_supports_ips(crtc) &&
 				   (I915_READ(IPS_CTL) & IPS_ENABLE);
 	pipe_config->pixel_multiplier = 1;
 	return true;
+}
-static int intel_crtc_mode_set(struct drm_crtc *crtc,
-			       int x, int y,
-			       struct drm_framebuffer *fb)
-{
-	struct drm_device *dev = crtc->dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_encoder *encoder;
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct drm_display_mode *mode = &intel_crtc->config.requested_mode;
-	int pipe = intel_crtc->pipe;
-	int ret;
-	drm_vblank_pre_modeset(dev, pipe);
-	ret = dev_priv->display.crtc_mode_set(crtc, x, y, fb);
-	drm_vblank_post_modeset(dev, pipe);
-	if (ret != 0)
-	return ret;
-	for_each_encoder_on_crtc(dev, crtc, encoder) {
-		DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
-			encoder->base.base.id,
-			drm_get_encoder_name(&encoder->base),
-			mode->base.id, mode->name);
-			encoder->mode_set(encoder);
-	}
-	return 0;
-}
 static struct {
 	int clock;
 	u32 config;
 } hdmi_audio_clock[] = {
 	{ DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175 },
 	{ 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200 }, /* default per bspec */
 	{ 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000 },
 	{ 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027 },
 	{ 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000 },
 	{ 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054 },
 	{ DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176 },
 	{ 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250 },
 	{ DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352 },
 	{ 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500 },
 };
 /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
 static u32 audio_config_hdmi_pixel_clock(struct drm_display_mode *mode)
+{
 	int i;
 	for (i = 0; i < ARRAY_SIZE(hdmi_audio_clock); i++) {
 		if (mode->clock == hdmi_audio_clock[i].clock)
 			break;
+	}
 	if (i == ARRAY_SIZE(hdmi_audio_clock)) {
 		DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode->clock);
 		i = 1;
+	}
 	DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n",
 		      hdmi_audio_clock[i].clock,
 		      hdmi_audio_clock[i].config);
 	return hdmi_audio_clock[i].config;
+}
 static bool intel_eld_uptodate(struct drm_connector *connector,
 			       int reg_eldv, uint32_t bits_eldv,
 			       int reg_elda, uint32_t bits_elda,
 			       int reg_edid)
+{
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
 	uint8_t *eld = connector->eld;
 	uint32_t i;
 	i = I915_READ(reg_eldv);
 	i &= bits_eldv;
 	if (!eld[0])
 		return !i;
 	if (!i)
 		return false;
 	i = I915_READ(reg_elda);
 	i &= ~bits_elda;
 	I915_WRITE(reg_elda, i);
 	for (i = 0; i < eld[2]; i++)
 		if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
 			return false;
 	return true;
+}
 static void g4x_write_eld(struct drm_connector *connector,
 			  struct drm_crtc *crtc,
 			  struct drm_display_mode *mode)
+{
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
 	uint8_t *eld = connector->eld;
 	uint32_t eldv;
 	uint32_t len;
 	uint32_t i;
 	i = I915_READ(G4X_AUD_VID_DID);
 	if (i == INTEL_AUDIO_DEVBLC || i == INTEL_AUDIO_DEVCL)
 		eldv = G4X_ELDV_DEVCL_DEVBLC;
 	else
 		eldv = G4X_ELDV_DEVCTG;
 	if (intel_eld_uptodate(connector,
 			       G4X_AUD_CNTL_ST, eldv,
 			       G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
 			       G4X_HDMIW_HDMIEDID))
 		return;
 	i = I915_READ(G4X_AUD_CNTL_ST);
 	i &= ~(eldv | G4X_ELD_ADDR);
 	len = (i >> 9) & 0x1f;		/* ELD buffer size */
 	I915_WRITE(G4X_AUD_CNTL_ST, i);
 	if (!eld[0])
 		return;
 	len = min_t(uint8_t, eld[2], len);
 	DRM_DEBUG_DRIVER("ELD size %d\n", len);
 	for (i = 0; i < len; i++)
 		I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i));
 	i = I915_READ(G4X_AUD_CNTL_ST);
 	i |= eldv;
 	I915_WRITE(G4X_AUD_CNTL_ST, i);
+}
 static void haswell_write_eld(struct drm_connector *connector,
 			      struct drm_crtc *crtc,
 			      struct drm_display_mode *mode)
+{
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
 	uint8_t *eld = connector->eld;
-	struct drm_device *dev = crtc->dev;
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	uint32_t eldv;
 	uint32_t i;
 	int len;
 	int pipe = to_intel_crtc(crtc)->pipe;
 	int tmp;
 	int hdmiw_hdmiedid = HSW_AUD_EDID_DATA(pipe);
 	int aud_cntl_st = HSW_AUD_DIP_ELD_CTRL(pipe);
 	int aud_config = HSW_AUD_CFG(pipe);
 	int aud_cntrl_st2 = HSW_AUD_PIN_ELD_CP_VLD;
-	DRM_DEBUG_DRIVER("HDMI: Haswell Audio initialize....\n");
 	/* Audio output enable */
 	DRM_DEBUG_DRIVER("HDMI audio: enable codec\n");
 	tmp = I915_READ(aud_cntrl_st2);
 	tmp |= (AUDIO_OUTPUT_ENABLE_A << (pipe * 4));
 	I915_WRITE(aud_cntrl_st2, tmp);
+	POSTING_READ(aud_cntrl_st2);
-	/* Wait for 1 vertical blank */
-	intel_wait_for_vblank(dev, pipe);
+	assert_pipe_disabled(dev_priv, to_intel_crtc(crtc)->pipe);
 	/* Set ELD valid state */
 	tmp = I915_READ(aud_cntrl_st2);
 	DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp);
 	tmp |= (AUDIO_ELD_VALID_A << (pipe * 4));
 	I915_WRITE(aud_cntrl_st2, tmp);
 	tmp = I915_READ(aud_cntrl_st2);
 	DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp);
 	/* Enable HDMI mode */
 	tmp = I915_READ(aud_config);
 	DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp);
 	/* clear N_programing_enable and N_value_index */
 	tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE);
 	I915_WRITE(aud_config, tmp);
 	DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
 	eldv = AUDIO_ELD_VALID_A << (pipe * 4);
-	intel_crtc->eld_vld = true;
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
 		DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
 		eld[5] |= (1 << 2);	/* Conn_Type, 0x1 = DisplayPort */
 		I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
 	} else {
 		I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
+	}
 	if (intel_eld_uptodate(connector,
 			       aud_cntrl_st2, eldv,
 			       aud_cntl_st, IBX_ELD_ADDRESS,
 			       hdmiw_hdmiedid))
 		return;
 	i = I915_READ(aud_cntrl_st2);
 	i &= ~eldv;
 	I915_WRITE(aud_cntrl_st2, i);
 	if (!eld[0])
 		return;
 	i = I915_READ(aud_cntl_st);
 	i &= ~IBX_ELD_ADDRESS;
 	I915_WRITE(aud_cntl_st, i);
 	i = (i >> 29) & DIP_PORT_SEL_MASK;		/* DIP_Port_Select, 0x1 = PortB */
 	DRM_DEBUG_DRIVER("port num:%d\n", i);
 	len = min_t(uint8_t, eld[2], 21);	/* 84 bytes of hw ELD buffer */
 	DRM_DEBUG_DRIVER("ELD size %d\n", len);
 	for (i = 0; i < len; i++)
 		I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
 	i = I915_READ(aud_cntrl_st2);
 	i |= eldv;
 	I915_WRITE(aud_cntrl_st2, i);
+}
 static void ironlake_write_eld(struct drm_connector *connector,
 			       struct drm_crtc *crtc,
 			       struct drm_display_mode *mode)
+{
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
 	uint8_t *eld = connector->eld;
 	uint32_t eldv;
 	uint32_t i;
 	int len;
 	int hdmiw_hdmiedid;
 	int aud_config;
 	int aud_cntl_st;
 	int aud_cntrl_st2;
 	int pipe = to_intel_crtc(crtc)->pipe;
 	if (HAS_PCH_IBX(connector->dev)) {
 		hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID(pipe);
 		aud_config = IBX_AUD_CFG(pipe);
 		aud_cntl_st = IBX_AUD_CNTL_ST(pipe);
 		aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
 	} else if (IS_VALLEYVIEW(connector->dev)) {
 		hdmiw_hdmiedid = VLV_HDMIW_HDMIEDID(pipe);
 		aud_config = VLV_AUD_CFG(pipe);
 		aud_cntl_st = VLV_AUD_CNTL_ST(pipe);
 		aud_cntrl_st2 = VLV_AUD_CNTL_ST2;
 	} else {
 		hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID(pipe);
 		aud_config = CPT_AUD_CFG(pipe);
 		aud_cntl_st = CPT_AUD_CNTL_ST(pipe);
 		aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
+	}
 	DRM_DEBUG_DRIVER("ELD on pipe %c\n", pipe_name(pipe));
 	if (IS_VALLEYVIEW(connector->dev))  {
 		struct intel_encoder *intel_encoder;
 		struct intel_digital_port *intel_dig_port;
 		intel_encoder = intel_attached_encoder(connector);
 		intel_dig_port = enc_to_dig_port(&intel_encoder->base);
 		i = intel_dig_port->port;
 	} else {
 	i = I915_READ(aud_cntl_st);
 		i = (i >> 29) & DIP_PORT_SEL_MASK;
 		/* DIP_Port_Select, 0x1 = PortB */
+	}
 	if (!i) {
 		DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
 		/* operate blindly on all ports */
 		eldv = IBX_ELD_VALIDB;
 		eldv |= IBX_ELD_VALIDB << 4;
 		eldv |= IBX_ELD_VALIDB << 8;
 	} else {
 		DRM_DEBUG_DRIVER("ELD on port %c\n", port_name(i));
 		eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
+	}
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
 		DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
 		eld[5] |= (1 << 2);	/* Conn_Type, 0x1 = DisplayPort */
 		I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
 	} else {
 		I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
+	}
 	if (intel_eld_uptodate(connector,
 			       aud_cntrl_st2, eldv,
 			       aud_cntl_st, IBX_ELD_ADDRESS,
 			       hdmiw_hdmiedid))
 		return;
 	i = I915_READ(aud_cntrl_st2);
 	i &= ~eldv;
 	I915_WRITE(aud_cntrl_st2, i);
 	if (!eld[0])
 		return;
 	i = I915_READ(aud_cntl_st);
 	i &= ~IBX_ELD_ADDRESS;
 	I915_WRITE(aud_cntl_st, i);
 	len = min_t(uint8_t, eld[2], 21);	/* 84 bytes of hw ELD buffer */
 	DRM_DEBUG_DRIVER("ELD size %d\n", len);
 	for (i = 0; i < len; i++)
 		I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i));
 	i = I915_READ(aud_cntrl_st2);
 	i |= eldv;
 	I915_WRITE(aud_cntrl_st2, i);
+}
 void intel_write_eld(struct drm_encoder *encoder,
 		     struct drm_display_mode *mode)
+{
 	struct drm_crtc *crtc = encoder->crtc;
 	struct drm_connector *connector;
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	connector = drm_select_eld(encoder, mode);
 	if (!connector)
 		return;
 	DRM_DEBUG_DRIVER("ELD on [CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
 			 connector->base.id,
-			 drm_get_connector_name(connector),
+			 connector->name,
 			 connector->encoder->base.id,
-			 drm_get_encoder_name(connector->encoder));
+			 connector->encoder->name);
 	connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
 	if (dev_priv->display.write_eld)
 		dev_priv->display.write_eld(connector, crtc, mode);
+}
 static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	bool visible = base != 0;
-	u32 cntl;
+	uint32_t cntl;
-	if (intel_crtc->cursor_visible == visible)
-		return;
-	cntl = I915_READ(_CURACNTR);
-	if (visible) {
+	if (base != intel_crtc->cursor_base) {
 		/* On these chipsets we can only modify the base whilst
 		 * the cursor is disabled.
 		 */
+		if (intel_crtc->cursor_cntl) {
+			I915_WRITE(_CURACNTR, 0);
+			POSTING_READ(_CURACNTR);
+			intel_crtc->cursor_cntl = 0;
+		}
 		I915_WRITE(_CURABASE, base);
+		POSTING_READ(_CURABASE);
+	}
 		cntl &= ~(CURSOR_FORMAT_MASK);
+		/* XXX width must be 64, stride 256 => 0x00 << 28 */
+	cntl = 0;
-		/* XXX width must be 64, stride 256 => 0x00 << 28 */
+	if (base)
-		cntl |= CURSOR_ENABLE |
+		cntl = (CURSOR_ENABLE |
 			CURSOR_GAMMA_ENABLE |
-			CURSOR_FORMAT_ARGB;
-	} else
+			CURSOR_FORMAT_ARGB);
-		cntl &= ~(CURSOR_ENABLE | CURSOR_GAMMA_ENABLE);
+	if (intel_crtc->cursor_cntl != cntl) {
-	I915_WRITE(_CURACNTR, cntl);
+	I915_WRITE(_CURACNTR, cntl);
+		POSTING_READ(_CURACNTR);
+		intel_crtc->cursor_cntl = cntl;
 	intel_crtc->cursor_visible = visible;
+}
 static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
-	bool visible = base != 0;
+	uint32_t cntl;
-	if (intel_crtc->cursor_visible != visible) {
-		uint32_t cntl = I915_READ(CURCNTR(pipe));
+	cntl = 0;
+		if (base) {
+		cntl = MCURSOR_GAMMA_ENABLE;
+		switch (intel_crtc->cursor_width) {
+			case 64:
+				cntl |= CURSOR_MODE_64_ARGB_AX;
+				break;
-		if (base) {
+			case 128:
+				cntl |= CURSOR_MODE_128_ARGB_AX;
+				break;
-			cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
+			case 256:
+				cntl |= CURSOR_MODE_256_ARGB_AX;
+				break;
+			default:
+				WARN_ON(1);
+				return;
 			cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
-			cntl |= pipe << 28; /* Connect to correct pipe */
-		} else {
-			cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
-			cntl |= CURSOR_MODE_DISABLE;
+			cntl |= pipe << 28; /* Connect to correct pipe */
+		}
 	if (intel_crtc->cursor_cntl != cntl) {
-		I915_WRITE(CURCNTR(pipe), cntl);
+		I915_WRITE(CURCNTR(pipe), cntl);
+		POSTING_READ(CURCNTR(pipe));
-		intel_crtc->cursor_visible = visible;
+		intel_crtc->cursor_cntl = cntl;
+	}
-	/* and commit changes on next vblank */
-	POSTING_READ(CURCNTR(pipe));
+	/* and commit changes on next vblank */
 	I915_WRITE(CURBASE(pipe), base);
 	POSTING_READ(CURBASE(pipe));
+}
 static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
-	bool visible = base != 0;
+	uint32_t cntl;
-	if (intel_crtc->cursor_visible != visible) {
-		uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
+	cntl = 0;
 		if (base) {
+		cntl = MCURSOR_GAMMA_ENABLE;
+		switch (intel_crtc->cursor_width) {
-			cntl &= ~CURSOR_MODE;
+			case 64:
+				cntl |= CURSOR_MODE_64_ARGB_AX;
-			cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
+				break;
-		} else {
+			case 128:
+				cntl |= CURSOR_MODE_128_ARGB_AX;
+				break;
-			cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
+			case 256:
+				cntl |= CURSOR_MODE_256_ARGB_AX;
+				break;
+			default:
+				WARN_ON(1);
-			cntl |= CURSOR_MODE_DISABLE;
+				return;
-		}
-		if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
-			cntl |= CURSOR_PIPE_CSC_ENABLE;
 			cntl &= ~CURSOR_TRICKLE_FEED_DISABLE;
+		}
-		}
+	if (IS_HASWELL(dev) || IS_BROADWELL(dev))
+			cntl |= CURSOR_PIPE_CSC_ENABLE;
+	if (intel_crtc->cursor_cntl != cntl) {
-		I915_WRITE(CURCNTR_IVB(pipe), cntl);
+		I915_WRITE(CURCNTR(pipe), cntl);
 		POSTING_READ(CURCNTR(pipe));
+		intel_crtc->cursor_cntl = cntl;
 		intel_crtc->cursor_visible = visible;
-	}
-	/* and commit changes on next vblank */
-	POSTING_READ(CURCNTR_IVB(pipe));
+	/* and commit changes on next vblank */
-	I915_WRITE(CURBASE_IVB(pipe), base);
+	I915_WRITE(CURBASE(pipe), base);
-	POSTING_READ(CURBASE_IVB(pipe));
+	POSTING_READ(CURBASE(pipe));
+}
 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
-static void intel_crtc_update_cursor(struct drm_crtc *crtc,
+void intel_crtc_update_cursor(struct drm_crtc *crtc,
 				     bool on)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
-	int x = intel_crtc->cursor_x;
+	int x = crtc->cursor_x;
-	int y = intel_crtc->cursor_y;
+	int y = crtc->cursor_y;
 	u32 base = 0, pos = 0;
-	bool visible;
 	if (on)
 		base = intel_crtc->cursor_addr;
 	if (x >= intel_crtc->config.pipe_src_w)
 			base = 0;
 	if (y >= intel_crtc->config.pipe_src_h)
 		base = 0;
 	if (x < 0) {
 		if (x + intel_crtc->cursor_width <= 0)
 			base = 0;
 		pos |= CURSOR_POS_SIGN << CURSOR_X_SHIFT;
 		x = -x;
+	}
 	pos |= x << CURSOR_X_SHIFT;
 	if (y < 0) {
 		if (y + intel_crtc->cursor_height <= 0)
 			base = 0;
 		pos |= CURSOR_POS_SIGN << CURSOR_Y_SHIFT;
 		y = -y;
+	}
 	pos |= y << CURSOR_Y_SHIFT;
-	visible = base != 0;
-	if (!visible && !intel_crtc->cursor_visible)
+	if (base == 0 && intel_crtc->cursor_base == 0)
-		return;
-	if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev) || IS_BROADWELL(dev)) {
-		I915_WRITE(CURPOS_IVB(pipe), pos);
-		ivb_update_cursor(crtc, base);
+		return;
+	I915_WRITE(CURPOS(pipe), pos);
+	if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev) || IS_BROADWELL(dev))
+		ivb_update_cursor(crtc, base);
+	else if (IS_845G(dev) || IS_I865G(dev))
-	} else {
+		i845_update_cursor(crtc, base);
-		I915_WRITE(CURPOS(pipe), pos);
+	else
 		i9xx_update_cursor(crtc, base);
+	intel_crtc->cursor_base = base;
+}
-	}
+/*
+ * intel_crtc_cursor_set_obj - Set cursor to specified GEM object
+ *
+ * Note that the object's reference will be consumed if the update fails.  If
-}
+ * the update succeeds, the reference of the old object (if any) will be
+ * consumed.
-#if 0
-static int intel_crtc_cursor_set(struct drm_crtc *crtc,
+ */
-				 struct drm_file *file,
+static int intel_crtc_cursor_set_obj(struct drm_crtc *crtc,
-				 uint32_t handle,
+				     struct drm_i915_gem_object *obj,
 				 uint32_t width, uint32_t height)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct drm_i915_gem_object *obj;
+	enum pipe pipe = intel_crtc->pipe;
+	unsigned old_width;
 	uint32_t addr;
 	int ret;
 	/* if we want to turn off the cursor ignore width and height */
-	if (!handle) {
+	if (!obj) {
 		DRM_DEBUG_KMS("cursor off\n");
 		addr = 0;
 		obj = NULL;
 		mutex_lock(&dev->struct_mutex);
 		goto finish;
+	}
-	/* Currently we only support 64x64 cursors */
+	/* Check for which cursor types we support */
+	if (!((width == 64 && height == 64) ||
+			(width == 128 && height == 128 && !IS_GEN2(dev)) ||
-	if (width != 64 || height != 64) {
+			(width == 256 && height == 256 && !IS_GEN2(dev)))) {
-		DRM_ERROR("we currently only support 64x64 cursors\n");
+		DRM_DEBUG("Cursor dimension not supported\n");
 		return -EINVAL;
+	}
-	obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
-	if (&obj->base == NULL)
-		return -ENOENT;
 	if (obj->base.size < width * height * 4) {
-		DRM_ERROR("buffer is to small\n");
+		DRM_DEBUG_KMS("buffer is too small\n");
 		ret = -ENOMEM;
 		goto fail;
+	}
 	/* we only need to pin inside GTT if cursor is non-phy */
 	mutex_lock(&dev->struct_mutex);
-	if (!dev_priv->info->cursor_needs_physical) {
+	if (!INTEL_INFO(dev)->cursor_needs_physical) {
 		unsigned alignment;
 		if (obj->tiling_mode) {
-			DRM_ERROR("cursor cannot be tiled\n");
+			DRM_DEBUG_KMS("cursor cannot be tiled\n");
 			ret = -EINVAL;
 			goto fail_locked;
+		}
 		/* Note that the w/a also requires 2 PTE of padding following
 		 * the bo. We currently fill all unused PTE with the shadow
 		 * page and so we should always have valid PTE following the
 		 * cursor preventing the VT-d warning.
 		 */
 		alignment = 0;
 		if (need_vtd_wa(dev))
 			alignment = 64*1024;
 		ret = i915_gem_object_pin_to_display_plane(obj, alignment, NULL);
 		if (ret) {
-			DRM_ERROR("failed to move cursor bo into the GTT\n");
+			DRM_DEBUG_KMS("failed to move cursor bo into the GTT\n");
 			goto fail_locked;
+		}
 		ret = i915_gem_object_put_fence(obj);
 		if (ret) {
-			DRM_ERROR("failed to release fence for cursor");
+			DRM_DEBUG_KMS("failed to release fence for cursor");
 			goto fail_unpin;
+		}
 		addr = i915_gem_obj_ggtt_offset(obj);
 	} else {
 		int align = IS_I830(dev) ? 16 * 1024 : 256;
-		ret = i915_gem_attach_phys_object(dev, obj,
+//		ret = i915_gem_object_attach_phys(obj, align);
-						  (intel_crtc->pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1,
-						  align);
-		if (ret) {
+//		if (ret) {
-			DRM_ERROR("failed to attach phys object\n");
+//			DRM_DEBUG_KMS("failed to attach phys object\n");
-			goto fail_locked;
+//			goto fail_locked;
-		}
+//		}
-		addr = obj->phys_obj->handle->busaddr;
+//		addr = obj->phys_handle->busaddr;
+	}
 	if (IS_GEN2(dev))
 		I915_WRITE(CURSIZE, (height << 12) | width);
  finish:
 	if (intel_crtc->cursor_bo) {
-		if (dev_priv->info->cursor_needs_physical) {
+		if (!INTEL_INFO(dev)->cursor_needs_physical)
-			if (intel_crtc->cursor_bo != obj)
-				i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
-		} else
 			i915_gem_object_unpin_from_display_plane(intel_crtc->cursor_bo);
-		drm_gem_object_unreference(&intel_crtc->cursor_bo->base);
+	}
+	i915_gem_track_fb(intel_crtc->cursor_bo, obj,
 			  INTEL_FRONTBUFFER_CURSOR(pipe));
+	mutex_unlock(&dev->struct_mutex);
-	mutex_unlock(&dev->struct_mutex);
+	old_width = intel_crtc->cursor_width;
 	intel_crtc->cursor_addr = addr;
 	intel_crtc->cursor_bo = obj;
 	intel_crtc->cursor_width = width;
 	intel_crtc->cursor_height = height;
+	if (intel_crtc->active) {
+		if (old_width != width)
-	if (intel_crtc->active)
+			intel_update_watermarks(crtc);
+		intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
 		intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
 	return 0;
 fail_unpin:
 	i915_gem_object_unpin_from_display_plane(obj);
 fail_locked:
 	mutex_unlock(&dev->struct_mutex);
 fail:
 	drm_gem_object_unreference_unlocked(&obj->base);
 	return ret;
+}
-#endif
-static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
-{
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	intel_crtc->cursor_x = clamp_t(int, x, SHRT_MIN, SHRT_MAX);
-	intel_crtc->cursor_y = clamp_t(int, y, SHRT_MIN, SHRT_MAX);
-	if (intel_crtc->active)
-		intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL);
-	return 0;
-}
 static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
 				 u16 *blue, uint32_t start, uint32_t size)
+{
 	int end = (start + size > 256) ? 256 : start + size, i;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	for (i = start; i < end; i++) {
 		intel_crtc->lut_r[i] = red[i] >> 8;
 		intel_crtc->lut_g[i] = green[i] >> 8;
 		intel_crtc->lut_b[i] = blue[i] >> 8;
+	}
 	intel_crtc_load_lut(crtc);
+}
 /* VESA 640x480x72Hz mode to set on the pipe */
 static struct drm_display_mode load_detect_mode = {
 	DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 31500, 640, 664,
 , 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
 };
 struct drm_framebuffer *
-intel_framebuffer_create(struct drm_device *dev,
+__intel_framebuffer_create(struct drm_device *dev,
 			 struct drm_mode_fb_cmd2 *mode_cmd,
 			 struct drm_i915_gem_object *obj)
+{
 	struct intel_framebuffer *intel_fb;
 	int ret;
 	intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
 	if (!intel_fb) {
 		drm_gem_object_unreference_unlocked(&obj->base);
 		return ERR_PTR(-ENOMEM);
+	}
-	ret = i915_mutex_lock_interruptible(dev);
-	if (ret)
-		goto err;
-	ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
-	mutex_unlock(&dev->struct_mutex);
+	ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
 	if (ret)
 		goto err;
 	return &intel_fb->base;
 err:
 		drm_gem_object_unreference_unlocked(&obj->base);
 		kfree(intel_fb);
 		return ERR_PTR(ret);
+}
+static struct drm_framebuffer *
+intel_framebuffer_create(struct drm_device *dev,
+			 struct drm_mode_fb_cmd2 *mode_cmd,
+			 struct drm_i915_gem_object *obj)
+{
+	struct drm_framebuffer *fb;
+	int ret;
+	ret = i915_mutex_lock_interruptible(dev);
+	if (ret)
+		return ERR_PTR(ret);
+	fb = __intel_framebuffer_create(dev, mode_cmd, obj);
+	mutex_unlock(&dev->struct_mutex);
+	return fb;
+}
 static u32
 intel_framebuffer_pitch_for_width(int width, int bpp)
+{
 	u32 pitch = DIV_ROUND_UP(width * bpp, 8);
 	return ALIGN(pitch, 64);
+}
 static u32
 intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
+{
 	u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
-	return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
+	return PAGE_ALIGN(pitch * mode->vdisplay);
+}
 static struct drm_framebuffer *
 intel_framebuffer_create_for_mode(struct drm_device *dev,
 				  struct drm_display_mode *mode,
 				  int depth, int bpp)
+{
 	struct drm_i915_gem_object *obj;
 	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
+	obj = i915_gem_alloc_object(dev,
+				    intel_framebuffer_size_for_mode(mode, bpp));
+	if (obj == NULL)
+		return ERR_PTR(-ENOMEM);
+	mode_cmd.width = mode->hdisplay;
+	mode_cmd.height = mode->vdisplay;
+	mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
+								bpp);
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
-	return NULL;
+	return intel_framebuffer_create(dev, &mode_cmd, obj);
+}
 static struct drm_framebuffer *
 mode_fits_in_fbdev(struct drm_device *dev,
 		   struct drm_display_mode *mode)
+{
 #ifdef CONFIG_DRM_I915_FBDEV
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_i915_gem_object *obj;
 	struct drm_framebuffer *fb;
-	if (dev_priv->fbdev == NULL)
+	if (!dev_priv->fbdev)
 		return NULL;
 	obj = dev_priv->fbdev->ifb.obj;
+	if (!dev_priv->fbdev->fb)
+		return NULL;
-	if (obj == NULL)
+	obj = dev_priv->fbdev->fb->obj;
-		return NULL;
+	BUG_ON(!obj);
-	fb = &dev_priv->fbdev->ifb.base;
+	fb = &dev_priv->fbdev->fb->base;
 	if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
 							       fb->bits_per_pixel))
 		return NULL;
 	if (obj->base.size < mode->vdisplay * fb->pitches[0])
 		return NULL;
 	return fb;
 #else
 	return NULL;
 #endif
+}
 bool intel_get_load_detect_pipe(struct drm_connector *connector,
 				struct drm_display_mode *mode,
-				struct intel_load_detect_pipe *old)
+				struct intel_load_detect_pipe *old,
+				struct drm_modeset_acquire_ctx *ctx)
+{
 	struct intel_crtc *intel_crtc;
 	struct intel_encoder *intel_encoder =
 		intel_attached_encoder(connector);
 	struct drm_crtc *possible_crtc;
 	struct drm_encoder *encoder = &intel_encoder->base;
 	struct drm_crtc *crtc = NULL;
 	struct drm_device *dev = encoder->dev;
 	struct drm_framebuffer *fb;
+	struct drm_mode_config *config = &dev->mode_config;
-	int i = -1;
+	int ret, i = -1;
 	DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
-		      connector->base.id, drm_get_connector_name(connector),
+		      connector->base.id, connector->name,
+		      encoder->base.id, encoder->name);
+retry:
+	ret = drm_modeset_lock(&config->connection_mutex, ctx);
+	if (ret)
-		      encoder->base.id, drm_get_encoder_name(encoder));
+		goto fail_unlock;
 	/*
 	 * Algorithm gets a little messy:
+	 *
 	 *   - if the connector already has an assigned crtc, use it (but make
 	 *     sure it's on first)
+	 *
 	 *   - try to find the first unused crtc that can drive this connector,
 	 *     and use that if we find one
 	 */
 	/* See if we already have a CRTC for this connector */
 	if (encoder->crtc) {
 		crtc = encoder->crtc;
+		ret = drm_modeset_lock(&crtc->mutex, ctx);
+		if (ret)
-		mutex_lock(&crtc->mutex);
+			goto fail_unlock;
 		old->dpms_mode = connector->dpms;
 		old->load_detect_temp = false;
 		/* Make sure the crtc and connector are running */
 		if (connector->dpms != DRM_MODE_DPMS_ON)
 			connector->funcs->dpms(connector, DRM_MODE_DPMS_ON);
 		return true;
+	}
 	/* Find an unused one (if possible) */
-	list_for_each_entry(possible_crtc, &dev->mode_config.crtc_list, head) {
+	for_each_crtc(dev, possible_crtc) {
 		i++;
 		if (!(encoder->possible_crtcs & (1 << i)))
 			continue;
-		if (!possible_crtc->enabled) {
+		if (possible_crtc->enabled)
+			continue;
+		/* This can occur when applying the pipe A quirk on resume. */
+		if (to_intel_crtc(possible_crtc)->new_enabled)
+			continue;
 			crtc = possible_crtc;
 			break;
+		}
-	}
 	/*
 	 * If we didn't find an unused CRTC, don't use any.
 	 */
 	if (!crtc) {
 		DRM_DEBUG_KMS("no pipe available for load-detect\n");
-		return false;
+		goto fail_unlock;
+	}
+	ret = drm_modeset_lock(&crtc->mutex, ctx);
+	if (ret)
-	mutex_lock(&crtc->mutex);
+		goto fail_unlock;
 	intel_encoder->new_crtc = to_intel_crtc(crtc);
 	to_intel_connector(connector)->new_encoder = intel_encoder;
 	intel_crtc = to_intel_crtc(crtc);
+	intel_crtc->new_enabled = true;
+	intel_crtc->new_config = &intel_crtc->config;
 	old->dpms_mode = connector->dpms;
 	old->load_detect_temp = true;
 	old->release_fb = NULL;
 	if (!mode)
 		mode = &load_detect_mode;
 	/* We need a framebuffer large enough to accommodate all accesses
 	 * that the plane may generate whilst we perform load detection.
 	 * We can not rely on the fbcon either being present (we get called
 	 * during its initialisation to detect all boot displays, or it may
 	 * not even exist) or that it is large enough to satisfy the
 	 * requested mode.
 	 */
 	fb = mode_fits_in_fbdev(dev, mode);
 	if (fb == NULL) {
 		DRM_DEBUG_KMS("creating tmp fb for load-detection\n");
 		fb = intel_framebuffer_create_for_mode(dev, mode, 24, 32);
 		old->release_fb = fb;
 	} else
 		DRM_DEBUG_KMS("reusing fbdev for load-detection framebuffer\n");
 	if (IS_ERR(fb)) {
 		DRM_DEBUG_KMS("failed to allocate framebuffer for load-detection\n");
-		mutex_unlock(&crtc->mutex);
-		return false;
+		goto fail;
+	}
 	if (intel_set_mode(crtc, mode, 0, 0, fb)) {
 		DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
 		if (old->release_fb)
 			old->release_fb->funcs->destroy(old->release_fb);
-		mutex_unlock(&crtc->mutex);
-		return false;
+		goto fail;
+	}
 	/* let the connector get through one full cycle before testing */
 	intel_wait_for_vblank(dev, intel_crtc->pipe);
 	return true;
+ fail:
+	intel_crtc->new_enabled = crtc->enabled;
+	if (intel_crtc->new_enabled)
+		intel_crtc->new_config = &intel_crtc->config;
+	else
+		intel_crtc->new_config = NULL;
+fail_unlock:
+	if (ret == -EDEADLK) {
+		drm_modeset_backoff(ctx);
+		goto retry;
+	}
+	return false;
+}
 void intel_release_load_detect_pipe(struct drm_connector *connector,
 				    struct intel_load_detect_pipe *old)
+{
 	struct intel_encoder *intel_encoder =
 		intel_attached_encoder(connector);
 	struct drm_encoder *encoder = &intel_encoder->base;
 	struct drm_crtc *crtc = encoder->crtc;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	DRM_DEBUG_KMS("[CONNECTOR:%d:%s], [ENCODER:%d:%s]\n",
-		      connector->base.id, drm_get_connector_name(connector),
+		      connector->base.id, connector->name,
-		      encoder->base.id, drm_get_encoder_name(encoder));
+		      encoder->base.id, encoder->name);
 	if (old->load_detect_temp) {
 		to_intel_connector(connector)->new_encoder = NULL;
 		intel_encoder->new_crtc = NULL;
+		intel_crtc->new_enabled = false;
+		intel_crtc->new_config = NULL;
 		intel_set_mode(crtc, NULL, 0, 0, NULL);
 		if (old->release_fb) {
 			drm_framebuffer_unregister_private(old->release_fb);
 			drm_framebuffer_unreference(old->release_fb);
+		}
 		mutex_unlock(&crtc->mutex);
 		return;
+	}
 	/* Switch crtc and encoder back off if necessary */
 	if (old->dpms_mode != DRM_MODE_DPMS_ON)
 		connector->funcs->dpms(connector, old->dpms_mode);
-	mutex_unlock(&crtc->mutex);
+}
 static int i9xx_pll_refclk(struct drm_device *dev,
 			   const struct intel_crtc_config *pipe_config)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 dpll = pipe_config->dpll_hw_state.dpll;
 	if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN)
 		return dev_priv->vbt.lvds_ssc_freq;
 	else if (HAS_PCH_SPLIT(dev))
 		return 120000;
 	else if (!IS_GEN2(dev))
 		return 96000;
 	else
 		return 48000;
+}
 /* Returns the clock of the currently programmed mode of the given pipe. */
 static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
 				struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int pipe = pipe_config->cpu_transcoder;
 	u32 dpll = pipe_config->dpll_hw_state.dpll;
 	u32 fp;
 	intel_clock_t clock;
 	int refclk = i9xx_pll_refclk(dev, pipe_config);
 	if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
 		fp = pipe_config->dpll_hw_state.fp0;
 	else
 		fp = pipe_config->dpll_hw_state.fp1;
 	clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
 	if (IS_PINEVIEW(dev)) {
 		clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1;
 		clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT;
 	} else {
 		clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
 		clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
+	}
 	if (!IS_GEN2(dev)) {
 		if (IS_PINEVIEW(dev))
 			clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >>
 				DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW);
 		else
 			clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >>
 			       DPLL_FPA01_P1_POST_DIV_SHIFT);
 		switch (dpll & DPLL_MODE_MASK) {
 		case DPLLB_MODE_DAC_SERIAL:
 			clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ?
 : 10;
 			break;
 		case DPLLB_MODE_LVDS:
 			clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ?
 : 14;
 			break;
 		default:
 			DRM_DEBUG_KMS("Unknown DPLL mode %08x in programmed "
 				  "mode\n", (int)(dpll & DPLL_MODE_MASK));
 			return;
+		}
 		if (IS_PINEVIEW(dev))
 			pineview_clock(refclk, &clock);
 		else
 			i9xx_clock(refclk, &clock);
 	} else {
 		u32 lvds = IS_I830(dev) ? 0 : I915_READ(LVDS);
 		bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN);
 		if (is_lvds) {
 			clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
 				       DPLL_FPA01_P1_POST_DIV_SHIFT);
 			if (lvds & LVDS_CLKB_POWER_UP)
 				clock.p2 = 7;
 			else
 			clock.p2 = 14;
 		} else {
 			if (dpll & PLL_P1_DIVIDE_BY_TWO)
 				clock.p1 = 2;
 			else {
 				clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
 					    DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
+			}
 			if (dpll & PLL_P2_DIVIDE_BY_4)
 				clock.p2 = 4;
 			else
 				clock.p2 = 2;
+		}
 		i9xx_clock(refclk, &clock);
+	}
 	/*
 	 * This value includes pixel_multiplier. We will use
 	 * port_clock to compute adjusted_mode.crtc_clock in the
 	 * encoder's get_config() function.
 	 */
 	pipe_config->port_clock = clock.dot;
+}
 int intel_dotclock_calculate(int link_freq,
 			     const struct intel_link_m_n *m_n)
+{
 	/*
 	 * The calculation for the data clock is:
 	 * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp
 	 * But we want to avoid losing precison if possible, so:
 	 * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp))
+	 *
 	 * and the link clock is simpler:
 	 * link_clock = (m * link_clock) / n
 	 */
 	if (!m_n->link_n)
 		return 0;
 	return div_u64((u64)m_n->link_m * link_freq, m_n->link_n);
+}
 static void ironlake_pch_clock_get(struct intel_crtc *crtc,
 				   struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	/* read out port_clock from the DPLL */
 	i9xx_crtc_clock_get(crtc, pipe_config);
 	/*
 	 * This value does not include pixel_multiplier.
 	 * We will check that port_clock and adjusted_mode.crtc_clock
 	 * agree once we know their relationship in the encoder's
 	 * get_config() function.
 	 */
 	pipe_config->adjusted_mode.crtc_clock =
 		intel_dotclock_calculate(intel_fdi_link_freq(dev) * 10000,
 					 &pipe_config->fdi_m_n);
+}
 /** Returns the currently programmed mode of the given pipe. */
 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
 					     struct drm_crtc *crtc)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
 	struct drm_display_mode *mode;
 	struct intel_crtc_config pipe_config;
 	int htot = I915_READ(HTOTAL(cpu_transcoder));
 	int hsync = I915_READ(HSYNC(cpu_transcoder));
 	int vtot = I915_READ(VTOTAL(cpu_transcoder));
 	int vsync = I915_READ(VSYNC(cpu_transcoder));
 	enum pipe pipe = intel_crtc->pipe;
 	mode = kzalloc(sizeof(*mode), GFP_KERNEL);
 	if (!mode)
 		return NULL;
 	/*
 	 * Construct a pipe_config sufficient for getting the clock info
 	 * back out of crtc_clock_get.
+	 *
 	 * Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
 	 * to use a real value here instead.
 	 */
 	pipe_config.cpu_transcoder = (enum transcoder) pipe;
 	pipe_config.pixel_multiplier = 1;
 	pipe_config.dpll_hw_state.dpll = I915_READ(DPLL(pipe));
 	pipe_config.dpll_hw_state.fp0 = I915_READ(FP0(pipe));
 	pipe_config.dpll_hw_state.fp1 = I915_READ(FP1(pipe));
 	i9xx_crtc_clock_get(intel_crtc, &pipe_config);
 	mode->clock = pipe_config.port_clock / pipe_config.pixel_multiplier;
 	mode->hdisplay = (htot & 0xffff) + 1;
 	mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
 	mode->hsync_start = (hsync & 0xffff) + 1;
 	mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
 	mode->vdisplay = (vtot & 0xffff) + 1;
 	mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
 	mode->vsync_start = (vsync & 0xffff) + 1;
 	mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
 	drm_mode_set_name(mode);
 	return mode;
+}
+static void intel_increase_pllclock(struct drm_device *dev,
-static void intel_increase_pllclock(struct drm_crtc *crtc)
+				    enum pipe pipe)
-{
-	struct drm_device *dev = crtc->dev;
+{
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int pipe = intel_crtc->pipe;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	int dpll_reg = DPLL(pipe);
 	int dpll;
-	if (HAS_PCH_SPLIT(dev))
+	if (!HAS_GMCH_DISPLAY(dev))
 		return;
 	if (!dev_priv->lvds_downclock_avail)
 		return;
 	dpll = I915_READ(dpll_reg);
 	if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
 		DRM_DEBUG_DRIVER("upclocking LVDS\n");
 		assert_panel_unlocked(dev_priv, pipe);
 		dpll &= ~DISPLAY_RATE_SELECT_FPA1;
 		I915_WRITE(dpll_reg, dpll);
 		intel_wait_for_vblank(dev, pipe);
 		dpll = I915_READ(dpll_reg);
 		if (dpll & DISPLAY_RATE_SELECT_FPA1)
 			DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
+	}
+}
 static void intel_decrease_pllclock(struct drm_crtc *crtc)
+{
 	struct drm_device *dev = crtc->dev;
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	if (HAS_PCH_SPLIT(dev))
+	if (!HAS_GMCH_DISPLAY(dev))
 		return;
 	if (!dev_priv->lvds_downclock_avail)
 		return;
 	/*
 	 * Since this is called by a timer, we should never get here in
 	 * the manual case.
 	 */
 	if (!HAS_PIPE_CXSR(dev) && intel_crtc->lowfreq_avail) {
 		int pipe = intel_crtc->pipe;
 		int dpll_reg = DPLL(pipe);
 		int dpll;
 		DRM_DEBUG_DRIVER("downclocking LVDS\n");
 		assert_panel_unlocked(dev_priv, pipe);
 		dpll = I915_READ(dpll_reg);
 		dpll |= DISPLAY_RATE_SELECT_FPA1;
 		I915_WRITE(dpll_reg, dpll);
 		intel_wait_for_vblank(dev, pipe);
 		dpll = I915_READ(dpll_reg);
 		if (!(dpll & DISPLAY_RATE_SELECT_FPA1))
 			DRM_DEBUG_DRIVER("failed to downclock LVDS!\n");
+	}
+}
 void intel_mark_busy(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
+	if (dev_priv->mm.busy)
+		return;
-	hsw_package_c8_gpu_busy(dev_priv);
+	intel_runtime_pm_get(dev_priv);
+	i915_update_gfx_val(dev_priv);
-	i915_update_gfx_val(dev_priv);
+	dev_priv->mm.busy = true;
+}
 void intel_mark_idle(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc;
-	hsw_package_c8_gpu_idle(dev_priv);
-	if (!i915_powersave)
+	if (!dev_priv->mm.busy)
+		return;
+	dev_priv->mm.busy = false;
+	if (!i915.powersave)
-		return;
+		goto out;
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+	for_each_crtc(dev, crtc) {
-		if (!crtc->fb)
+		if (!crtc->primary->fb)
 			continue;
 		intel_decrease_pllclock(crtc);
+	}
-	if (dev_priv->info->gen >= 6)
+	if (INTEL_INFO(dev)->gen >= 6)
+		gen6_rps_idle(dev->dev_private);
+out:
-		gen6_rps_idle(dev->dev_private);
+	intel_runtime_pm_put(dev_priv);
+}
+/**
+ * intel_mark_fb_busy - mark given planes as busy
+ * @dev: DRM device
+ * @frontbuffer_bits: bits for the affected planes
+ * @ring: optional ring for asynchronous commands
+ *
+ * This function gets called every time the screen contents change. It can be
-}
+ * used to keep e.g. the update rate at the nominal refresh rate with DRRS.
+ */
+static void intel_mark_fb_busy(struct drm_device *dev,
-void intel_mark_fb_busy(struct drm_i915_gem_object *obj,
+			       unsigned frontbuffer_bits,
-			struct intel_ring_buffer *ring)
-{
+			struct intel_engine_cs *ring)
-	struct drm_device *dev = obj->base.dev;
+{
-	struct drm_crtc *crtc;
+	enum pipe pipe;
-	if (!i915_powersave)
-		return;
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+	if (!i915.powersave)
-		if (!crtc->fb)
+		return;
-			continue;
 	for_each_pipe(pipe) {
-		if (to_intel_framebuffer(crtc->fb)->obj != obj)
+		if (!(frontbuffer_bits & INTEL_FRONTBUFFER_ALL_MASK(pipe)))
 			continue;
-			intel_increase_pllclock(crtc);
+		intel_increase_pllclock(dev, pipe);
 		if (ring && intel_fbc_enabled(dev))
 			ring->fbc_dirty = true;
+	}
+}
+/**
+ * intel_fb_obj_invalidate - invalidate frontbuffer object
+ * @obj: GEM object to invalidate
+ * @ring: set for asynchronous rendering
+ *
+ * This function gets called every time rendering on the given object starts and
+ * frontbuffer caching (fbc, low refresh rate for DRRS, panel self refresh) must
+ * be invalidated. If @ring is non-NULL any subsequent invalidation will be delayed
+ * until the rendering completes or a flip on this frontbuffer plane is
+ * scheduled.
+ */
+void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
+			     struct intel_engine_cs *ring)
+{
+	struct drm_device *dev = obj->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	WARN_ON(!mutex_is_locked(&dev->struct_mutex));
+	if (!obj->frontbuffer_bits)
+		return;
+	if (ring) {
+		mutex_lock(&dev_priv->fb_tracking.lock);
+		dev_priv->fb_tracking.busy_bits
+			|= obj->frontbuffer_bits;
+		dev_priv->fb_tracking.flip_bits
+			&= ~obj->frontbuffer_bits;
+		mutex_unlock(&dev_priv->fb_tracking.lock);
+	}
+	intel_mark_fb_busy(dev, obj->frontbuffer_bits, ring);
+	intel_edp_psr_invalidate(dev, obj->frontbuffer_bits);
+}
+/**
+ * intel_frontbuffer_flush - flush frontbuffer
+ * @dev: DRM device
+ * @frontbuffer_bits: frontbuffer plane tracking bits
+ *
+ * This function gets called every time rendering on the given planes has
+ * completed and frontbuffer caching can be started again. Flushes will get
+ * delayed if they're blocked by some oustanding asynchronous rendering.
+ *
+ * Can be called without any locks held.
+ */
+void intel_frontbuffer_flush(struct drm_device *dev,
+			     unsigned frontbuffer_bits)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	/* Delay flushing when rings are still busy.*/
+	mutex_lock(&dev_priv->fb_tracking.lock);
+	frontbuffer_bits &= ~dev_priv->fb_tracking.busy_bits;
+	mutex_unlock(&dev_priv->fb_tracking.lock);
+	intel_mark_fb_busy(dev, frontbuffer_bits, NULL);
+	intel_edp_psr_flush(dev, frontbuffer_bits);
+}
 static void intel_crtc_destroy(struct drm_crtc *crtc)
+{
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct drm_device *dev = crtc->dev;
 	struct intel_unpin_work *work;
 	unsigned long flags;
 	spin_lock_irqsave(&dev->event_lock, flags);
 	work = intel_crtc->unpin_work;
 	intel_crtc->unpin_work = NULL;
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 	if (work) {
 		cancel_work_sync(&work->work);
 		kfree(work);
+	}
 	drm_crtc_cleanup(crtc);
 	kfree(intel_crtc);
+}
 #if 0
 static void intel_unpin_work_fn(struct work_struct *__work)
+{
 	struct intel_unpin_work *work =
 		container_of(__work, struct intel_unpin_work, work);
 	struct drm_device *dev = work->crtc->dev;
+	enum pipe pipe = to_intel_crtc(work->crtc)->pipe;
 	mutex_lock(&dev->struct_mutex);
 	intel_unpin_fb_obj(work->old_fb_obj);
 	drm_gem_object_unreference(&work->pending_flip_obj->base);
 	drm_gem_object_unreference(&work->old_fb_obj->base);
 	intel_update_fbc(dev);
 	mutex_unlock(&dev->struct_mutex);
 	BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0);
 	atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count);
 	kfree(work);
+}
 static void do_intel_finish_page_flip(struct drm_device *dev,
 				      struct drm_crtc *crtc)
+{
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_unpin_work *work;
 	unsigned long flags;
 	/* Ignore early vblank irqs */
 	if (intel_crtc == NULL)
 		return;
 	spin_lock_irqsave(&dev->event_lock, flags);
 	work = intel_crtc->unpin_work;
 	/* Ensure we don't miss a work->pending update ... */
 	smp_rmb();
 	if (work == NULL || atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
 		spin_unlock_irqrestore(&dev->event_lock, flags);
 		return;
+	}
 	/* and that the unpin work is consistent wrt ->pending. */
 	smp_rmb();
 	intel_crtc->unpin_work = NULL;
 	if (work->event)
 		drm_send_vblank_event(dev, intel_crtc->pipe, work->event);
-	drm_vblank_put(dev, intel_crtc->pipe);
+	drm_crtc_vblank_put(crtc);
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 	wake_up_all(&dev_priv->pending_flip_queue);
 	queue_work(dev_priv->wq, &work->work);
 	trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
+}
 void intel_finish_page_flip(struct drm_device *dev, int pipe)
+{
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	do_intel_finish_page_flip(dev, crtc);
+}
 void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
+{
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
 	do_intel_finish_page_flip(dev, crtc);
+}
+/* Is 'a' after or equal to 'b'? */
+static bool g4x_flip_count_after_eq(u32 a, u32 b)
+{
+	return !((a - b) & 0x80000000);
+}
+static bool page_flip_finished(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	/*
+	 * The relevant registers doen't exist on pre-ctg.
+	 * As the flip done interrupt doesn't trigger for mmio
+	 * flips on gmch platforms, a flip count check isn't
+	 * really needed there. But since ctg has the registers,
+	 * include it in the check anyway.
+	 */
+	if (INTEL_INFO(dev)->gen < 5 && !IS_G4X(dev))
+		return true;
+	/*
+	 * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
+	 * used the same base address. In that case the mmio flip might
+	 * have completed, but the CS hasn't even executed the flip yet.
+	 *
+	 * A flip count check isn't enough as the CS might have updated
+	 * the base address just after start of vblank, but before we
+	 * managed to process the interrupt. This means we'd complete the
+	 * CS flip too soon.
+	 *
+	 * Combining both checks should get us a good enough result. It may
+	 * still happen that the CS flip has been executed, but has not
+	 * yet actually completed. But in case the base address is the same
+	 * anyway, we don't really care.
+	 */
+	return (I915_READ(DSPSURFLIVE(crtc->plane)) & ~0xfff) ==
+		crtc->unpin_work->gtt_offset &&
+		g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc->pipe)),
+				    crtc->unpin_work->flip_count);
+}
 void intel_prepare_page_flip(struct drm_device *dev, int plane)
 {
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc =
 		to_intel_crtc(dev_priv->plane_to_crtc_mapping[plane]);
 	unsigned long flags;
 	/* NB: An MMIO update of the plane base pointer will also
 	 * generate a page-flip completion irq, i.e. every modeset
 	 * is also accompanied by a spurious intel_prepare_page_flip().
 	 */
 	spin_lock_irqsave(&dev->event_lock, flags);
-	if (intel_crtc->unpin_work)
+	if (intel_crtc->unpin_work && page_flip_finished(intel_crtc))
 		atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
 	spin_unlock_irqrestore(&dev->event_lock, flags);
+}
-inline static void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
+static inline void intel_mark_page_flip_active(struct intel_crtc *intel_crtc)
+{
 	/* Ensure that the work item is consistent when activating it ... */
 	smp_wmb();
 	atomic_set(&intel_crtc->unpin_work->pending, INTEL_FLIP_PENDING);
 	/* and that it is marked active as soon as the irq could fire. */
 	smp_wmb();
+}
 static int intel_gen2_queue_flip(struct drm_device *dev,
 				 struct drm_crtc *crtc,
 				 struct drm_framebuffer *fb,
 				 struct drm_i915_gem_object *obj,
+				 struct intel_engine_cs *ring,
 				 uint32_t flags)
+{
-	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	u32 flip_mask;
-	struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
 	int ret;
-	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
-	if (ret)
-		goto err;
 	ret = intel_ring_begin(ring, 6);
 	if (ret)
-		goto err_unpin;
+		return ret;
 	/* Can't queue multiple flips, so wait for the previous
 	 * one to finish before executing the next.
 	 */
 	if (intel_crtc->plane)
 		flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
 	else
 		flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
 	intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
 	intel_ring_emit(ring, MI_NOOP);
 	intel_ring_emit(ring, MI_DISPLAY_FLIP |
 			MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
 	intel_ring_emit(ring, fb->pitches[0]);
-	intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
+	intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset);
 	intel_ring_emit(ring, 0); /* aux display base address, unused */
 	intel_mark_page_flip_active(intel_crtc);
 	__intel_ring_advance(ring);
 	return 0;
-err_unpin:
-	intel_unpin_fb_obj(obj);
-err:
-	return ret;
+}
 static int intel_gen3_queue_flip(struct drm_device *dev,
 				 struct drm_crtc *crtc,
 				 struct drm_framebuffer *fb,
 				 struct drm_i915_gem_object *obj,
+				 struct intel_engine_cs *ring,
 				 uint32_t flags)
+{
-	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	u32 flip_mask;
-	struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
 	int ret;
-	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
-	if (ret)
-		goto err;
 	ret = intel_ring_begin(ring, 6);
 	if (ret)
-		goto err_unpin;
+		return ret;
 	if (intel_crtc->plane)
 		flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
 	else
 		flip_mask = MI_WAIT_FOR_PLANE_A_FLIP;
 	intel_ring_emit(ring, MI_WAIT_FOR_EVENT | flip_mask);
 	intel_ring_emit(ring, MI_NOOP);
 	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
 			MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
 	intel_ring_emit(ring, fb->pitches[0]);
-	intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
+	intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset);
 	intel_ring_emit(ring, MI_NOOP);
 	intel_mark_page_flip_active(intel_crtc);
 	__intel_ring_advance(ring);
 	return 0;
-err_unpin:
-	intel_unpin_fb_obj(obj);
-err:
-	return ret;
+}
 static int intel_gen4_queue_flip(struct drm_device *dev,
 				 struct drm_crtc *crtc,
 				 struct drm_framebuffer *fb,
 				 struct drm_i915_gem_object *obj,
+				 struct intel_engine_cs *ring,
 				 uint32_t flags)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	uint32_t pf, pipesrc;
-	struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
 	int ret;
-	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
-	if (ret)
-		goto err;
 	ret = intel_ring_begin(ring, 4);
 	if (ret)
-		goto err_unpin;
+		return ret;
 	/* i965+ uses the linear or tiled offsets from the
 	 * Display Registers (which do not change across a page-flip)
 	 * so we need only reprogram the base address.
 	 */
 	intel_ring_emit(ring, MI_DISPLAY_FLIP |
 			MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
 	intel_ring_emit(ring, fb->pitches[0]);
-	intel_ring_emit(ring,
-			(i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset) |
+	intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset |
 			obj->tiling_mode);
 	/* XXX Enabling the panel-fitter across page-flip is so far
 	 * untested on non-native modes, so ignore it for now.
 	 * pf = I915_READ(pipe == 0 ? PFA_CTL_1 : PFB_CTL_1) & PF_ENABLE;
 	 */
 	pf = 0;
 	pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
 	intel_ring_emit(ring, pf | pipesrc);
 	intel_mark_page_flip_active(intel_crtc);
 	__intel_ring_advance(ring);
 	return 0;
-err_unpin:
-	intel_unpin_fb_obj(obj);
-err:
-	return ret;
+}
 static int intel_gen6_queue_flip(struct drm_device *dev,
 				 struct drm_crtc *crtc,
 				 struct drm_framebuffer *fb,
 				 struct drm_i915_gem_object *obj,
+				 struct intel_engine_cs *ring,
 				 uint32_t flags)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct intel_ring_buffer *ring = &dev_priv->ring[RCS];
 	uint32_t pf, pipesrc;
 	int ret;
-	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
-	if (ret)
-		goto err;
 	ret = intel_ring_begin(ring, 4);
 	if (ret)
-		goto err_unpin;
+		return ret;
 	intel_ring_emit(ring, MI_DISPLAY_FLIP |
 			MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
 	intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
-	intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
+	intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset);
 	/* Contrary to the suggestions in the documentation,
 	 * "Enable Panel Fitter" does not seem to be required when page
 	 * flipping with a non-native mode, and worse causes a normal
 	 * modeset to fail.
 	 * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
 	 */
 	pf = 0;
 	pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
 	intel_ring_emit(ring, pf | pipesrc);
 	intel_mark_page_flip_active(intel_crtc);
 	__intel_ring_advance(ring);
 	return 0;
-err_unpin:
-	intel_unpin_fb_obj(obj);
-err:
-	return ret;
+}
 static int intel_gen7_queue_flip(struct drm_device *dev,
 				 struct drm_crtc *crtc,
 				 struct drm_framebuffer *fb,
 				 struct drm_i915_gem_object *obj,
+				 struct intel_engine_cs *ring,
 				 uint32_t flags)
+{
-	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	struct intel_ring_buffer *ring;
 	uint32_t plane_bit = 0;
 	int len, ret;
-	ring = obj->ring;
-	if (IS_VALLEYVIEW(dev) || ring == NULL || ring->id != RCS)
-		ring = &dev_priv->ring[BCS];
-	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
-	if (ret)
-		goto err;
-	switch(intel_crtc->plane) {
+	switch (intel_crtc->plane) {
 	case PLANE_A:
 		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
 		break;
 	case PLANE_B:
 		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
 		break;
 	case PLANE_C:
 		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
 		break;
 	default:
 		WARN_ONCE(1, "unknown plane in flip command\n");
-		ret = -ENODEV;
+		return -ENODEV;
-		goto err_unpin;
+	}
 	len = 4;
-	if (ring->id == RCS)
+	if (ring->id == RCS) {
 		len += 6;
+		/*
+		 * On Gen 8, SRM is now taking an extra dword to accommodate
+		 * 48bits addresses, and we need a NOOP for the batch size to
+		 * stay even.
+		 */
+		if (IS_GEN8(dev))
+			len += 2;
+	}
+	/*
+	 * BSpec MI_DISPLAY_FLIP for IVB:
+	 * "The full packet must be contained within the same cache line."
+	 *
+	 * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same
+	 * cacheline, if we ever start emitting more commands before
+	 * the MI_DISPLAY_FLIP we may need to first emit everything else,
+	 * then do the cacheline alignment, and finally emit the
+	 * MI_DISPLAY_FLIP.
+	 */
+	ret = intel_ring_cacheline_align(ring);
+	if (ret)
+		return ret;
 	ret = intel_ring_begin(ring, len);
 	if (ret)
-		goto err_unpin;
+		return ret;
 	/* Unmask the flip-done completion message. Note that the bspec says that
 	 * we should do this for both the BCS and RCS, and that we must not unmask
 	 * more than one flip event at any time (or ensure that one flip message
 	 * can be sent by waiting for flip-done prior to queueing new flips).
 	 * Experimentation says that BCS works despite DERRMR masking all
 	 * flip-done completion events and that unmasking all planes at once
 	 * for the RCS also doesn't appear to drop events. Setting the DERRMR
 	 * to zero does lead to lockups within MI_DISPLAY_FLIP.
 	 */
 	if (ring->id == RCS) {
 		intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
 		intel_ring_emit(ring, DERRMR);
 		intel_ring_emit(ring, ~(DERRMR_PIPEA_PRI_FLIP_DONE |
 					DERRMR_PIPEB_PRI_FLIP_DONE |
 					DERRMR_PIPEC_PRI_FLIP_DONE));
+		if (IS_GEN8(dev))
+			intel_ring_emit(ring, MI_STORE_REGISTER_MEM_GEN8(1) |
+					      MI_SRM_LRM_GLOBAL_GTT);
+		else
 		intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1) |
 				MI_SRM_LRM_GLOBAL_GTT);
 		intel_ring_emit(ring, DERRMR);
 		intel_ring_emit(ring, ring->scratch.gtt_offset + 256);
+		if (IS_GEN8(dev)) {
+			intel_ring_emit(ring, 0);
+			intel_ring_emit(ring, MI_NOOP);
+		}
+	}
 	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
 	intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
-	intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
+	intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset);
 	intel_ring_emit(ring, (MI_NOOP));
 	intel_mark_page_flip_active(intel_crtc);
 	__intel_ring_advance(ring);
 	return 0;
-err_unpin:
-	intel_unpin_fb_obj(obj);
-err:
-	return ret;
+}
 static int intel_default_queue_flip(struct drm_device *dev,
 				    struct drm_crtc *crtc,
 				    struct drm_framebuffer *fb,
 				    struct drm_i915_gem_object *obj,
+				    struct intel_engine_cs *ring,
 				    uint32_t flags)
+{
 	return -ENODEV;
+}
 static int intel_crtc_page_flip(struct drm_crtc *crtc,
 				struct drm_framebuffer *fb,
 				struct drm_pending_vblank_event *event,
 				uint32_t page_flip_flags)
+{
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct drm_framebuffer *old_fb = crtc->fb;
+	struct drm_framebuffer *old_fb = crtc->primary->fb;
-	struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
+	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	enum pipe pipe = intel_crtc->pipe;
 	struct intel_unpin_work *work;
+	struct intel_engine_cs *ring;
 	unsigned long flags;
 	int ret;
+	/*
+	 * drm_mode_page_flip_ioctl() should already catch this, but double
+	 * check to be safe.  In the future we may enable pageflipping from
+	 * a disabled primary plane.
+	 */
+	if (WARN_ON(intel_fb_obj(old_fb) == NULL))
+		return -EBUSY;
 	/* Can't change pixel format via MI display flips. */
-	if (fb->pixel_format != crtc->fb->pixel_format)
+	if (fb->pixel_format != crtc->primary->fb->pixel_format)
 		return -EINVAL;
 	/*
 	 * TILEOFF/LINOFF registers can't be changed via MI display flips.
 	 * Note that pitch changes could also affect these register.
 	 */
 	if (INTEL_INFO(dev)->gen > 3 &&
-	    (fb->offsets[0] != crtc->fb->offsets[0] ||
+	    (fb->offsets[0] != crtc->primary->fb->offsets[0] ||
-	     fb->pitches[0] != crtc->fb->pitches[0]))
+	     fb->pitches[0] != crtc->primary->fb->pitches[0]))
 		return -EINVAL;
 	work = kzalloc(sizeof(*work), GFP_KERNEL);
 	if (work == NULL)
 		return -ENOMEM;
 	work->event = event;
 	work->crtc = crtc;
-	work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
+	work->old_fb_obj = intel_fb_obj(old_fb);
 	INIT_WORK(&work->work, intel_unpin_work_fn);
-	ret = drm_vblank_get(dev, intel_crtc->pipe);
+	ret = drm_crtc_vblank_get(crtc);
 	if (ret)
 		goto free_work;
 	/* We borrow the event spin lock for protecting unpin_work */
 	spin_lock_irqsave(&dev->event_lock, flags);
 	if (intel_crtc->unpin_work) {
 		spin_unlock_irqrestore(&dev->event_lock, flags);
 		kfree(work);
-		drm_vblank_put(dev, intel_crtc->pipe);
+		drm_crtc_vblank_put(crtc);
 		DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
 		return -EBUSY;
+	}
 	intel_crtc->unpin_work = work;
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 	if (atomic_read(&intel_crtc->unpin_work_count) >= 2)
 		flush_workqueue(dev_priv->wq);
 	ret = i915_mutex_lock_interruptible(dev);
 	if (ret)
 		goto cleanup;
 	/* Reference the objects for the scheduled work. */
 	drm_gem_object_reference(&work->old_fb_obj->base);
 	drm_gem_object_reference(&obj->base);
-	crtc->fb = fb;
+	crtc->primary->fb = fb;
 	work->pending_flip_obj = obj;
 	work->enable_stall_check = true;
 	atomic_inc(&intel_crtc->unpin_work_count);
 	intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
+	if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev))
+		work->flip_count = I915_READ(PIPE_FLIPCOUNT_GM45(pipe)) + 1;
+	if (IS_VALLEYVIEW(dev)) {
+		ring = &dev_priv->ring[BCS];
+		if (obj->tiling_mode != work->old_fb_obj->tiling_mode)
+			/* vlv: DISPLAY_FLIP fails to change tiling */
+			ring = NULL;
+	} else if (IS_IVYBRIDGE(dev)) {
+		ring = &dev_priv->ring[BCS];
+	} else if (INTEL_INFO(dev)->gen >= 7) {
+		ring = obj->ring;
+		if (ring == NULL || ring->id != RCS)
+			ring = &dev_priv->ring[BCS];
+	} else {
+		ring = &dev_priv->ring[RCS];
+	}
-	ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, page_flip_flags);
+	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
 	if (ret)
 		goto cleanup_pending;
+	work->gtt_offset =
+		i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset;
+	if (use_mmio_flip(ring, obj))
+		ret = intel_queue_mmio_flip(dev, crtc, fb, obj, ring,
+					    page_flip_flags);
+	else
+		ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, ring,
+				page_flip_flags);
+	if (ret)
+		goto cleanup_unpin;
+	i915_gem_track_fb(work->old_fb_obj, obj,
+			  INTEL_FRONTBUFFER_PRIMARY(pipe));
 	intel_disable_fbc(dev);
-	intel_mark_fb_busy(obj, NULL);
+	intel_frontbuffer_flip_prepare(dev, INTEL_FRONTBUFFER_PRIMARY(pipe));
 	mutex_unlock(&dev->struct_mutex);
 	trace_i915_flip_request(intel_crtc->plane, obj);
 	return 0;
+cleanup_unpin:
 	intel_unpin_fb_obj(obj);
 cleanup_pending:
 	atomic_dec(&intel_crtc->unpin_work_count);
-	crtc->fb = old_fb;
+	crtc->primary->fb = old_fb;
 	drm_gem_object_unreference(&work->old_fb_obj->base);
 	drm_gem_object_unreference(&obj->base);
 	mutex_unlock(&dev->struct_mutex);
 cleanup:
 	spin_lock_irqsave(&dev->event_lock, flags);
 	intel_crtc->unpin_work = NULL;
 	spin_unlock_irqrestore(&dev->event_lock, flags);
-	drm_vblank_put(dev, intel_crtc->pipe);
+	drm_crtc_vblank_put(crtc);
 free_work:
 	kfree(work);
+	if (ret == -EIO) {
+out_hang:
+		intel_crtc_wait_for_pending_flips(crtc);
+		ret = intel_pipe_set_base(crtc, crtc->x, crtc->y, fb);
+		if (ret == 0 && event)
+			drm_send_vblank_event(dev, pipe, event);
+	}
 	return ret;
+}
 #endif
 static struct drm_crtc_helper_funcs intel_helper_funcs = {
 	.mode_set_base_atomic = intel_pipe_set_base_atomic,
 	.load_lut = intel_crtc_load_lut,
 };
 /**
  * intel_modeset_update_staged_output_state
+ *
  * Updates the staged output configuration state, e.g. after we've read out the
  * current hw state.
  */
 static void intel_modeset_update_staged_output_state(struct drm_device *dev)
+{
+	struct intel_crtc *crtc;
 	struct intel_encoder *encoder;
 	struct intel_connector *connector;
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    base.head) {
 		connector->new_encoder =
 			to_intel_encoder(connector->base.encoder);
+	}
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 			    base.head) {
 		encoder->new_crtc =
 			to_intel_crtc(encoder->base.crtc);
+	}
+	for_each_intel_crtc(dev, crtc) {
+		crtc->new_enabled = crtc->base.enabled;
+		if (crtc->new_enabled)
+			crtc->new_config = &crtc->config;
+		else
+			crtc->new_config = NULL;
+	}
+}
 /**
  * intel_modeset_commit_output_state
+ *
  * This function copies the stage display pipe configuration to the real one.
  */
 static void intel_modeset_commit_output_state(struct drm_device *dev)
+{
+	struct intel_crtc *crtc;
 	struct intel_encoder *encoder;
 	struct intel_connector *connector;
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    base.head) {
 		connector->base.encoder = &connector->new_encoder->base;
+	}
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 			    base.head) {
 		encoder->base.crtc = &encoder->new_crtc->base;
+	}
+	for_each_intel_crtc(dev, crtc) {
+		crtc->base.enabled = crtc->new_enabled;
+	}
+}
 static void
-connected_sink_compute_bpp(struct intel_connector * connector,
+connected_sink_compute_bpp(struct intel_connector *connector,
 			   struct intel_crtc_config *pipe_config)
+{
 	int bpp = pipe_config->pipe_bpp;
 	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] checking for sink bpp constrains\n",
 		connector->base.base.id,
-		drm_get_connector_name(&connector->base));
+		connector->base.name);
 	/* Don't use an invalid EDID bpc value */
 	if (connector->base.display_info.bpc &&
 	    connector->base.display_info.bpc * 3 < bpp) {
 		DRM_DEBUG_KMS("clamping display bpp (was %d) to EDID reported max of %d\n",
 			      bpp, connector->base.display_info.bpc*3);
 		pipe_config->pipe_bpp = connector->base.display_info.bpc*3;
+	}
 	/* Clamp bpp to 8 on screens without EDID 1.4 */
 	if (connector->base.display_info.bpc == 0 && bpp > 24) {
 		DRM_DEBUG_KMS("clamping display bpp (was %d) to default limit of 24\n",
 			      bpp);
 		pipe_config->pipe_bpp = 24;
+	}
+}
 static int
 compute_baseline_pipe_bpp(struct intel_crtc *crtc,
 		    struct drm_framebuffer *fb,
 		    struct intel_crtc_config *pipe_config)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct intel_connector *connector;
 	int bpp;
 	switch (fb->pixel_format) {
 	case DRM_FORMAT_C8:
 		bpp = 8*3; /* since we go through a colormap */
 		break;
 	case DRM_FORMAT_XRGB1555:
 	case DRM_FORMAT_ARGB1555:
 		/* checked in intel_framebuffer_init already */
 		if (WARN_ON(INTEL_INFO(dev)->gen > 3))
 			return -EINVAL;
 	case DRM_FORMAT_RGB565:
 		bpp = 6*3; /* min is 18bpp */
 		break;
 	case DRM_FORMAT_XBGR8888:
 	case DRM_FORMAT_ABGR8888:
 		/* checked in intel_framebuffer_init already */
 		if (WARN_ON(INTEL_INFO(dev)->gen < 4))
 			return -EINVAL;
 	case DRM_FORMAT_XRGB8888:
 	case DRM_FORMAT_ARGB8888:
 		bpp = 8*3;
 		break;
 	case DRM_FORMAT_XRGB2101010:
 	case DRM_FORMAT_ARGB2101010:
 	case DRM_FORMAT_XBGR2101010:
 	case DRM_FORMAT_ABGR2101010:
 		/* checked in intel_framebuffer_init already */
 		if (WARN_ON(INTEL_INFO(dev)->gen < 4))
 			return -EINVAL;
 		bpp = 10*3;
 		break;
 	/* TODO: gen4+ supports 16 bpc floating point, too. */
 	default:
 		DRM_DEBUG_KMS("unsupported depth\n");
 		return -EINVAL;
+	}
 	pipe_config->pipe_bpp = bpp;
 	/* Clamp display bpp to EDID value */
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    base.head) {
 		if (!connector->new_encoder ||
 		    connector->new_encoder->new_crtc != crtc)
 			continue;
 		connected_sink_compute_bpp(connector, pipe_config);
+	}
 	return bpp;
+}
 static void intel_dump_crtc_timings(const struct drm_display_mode *mode)
+{
 	DRM_DEBUG_KMS("crtc timings: %d %d %d %d %d %d %d %d %d, "
 			"type: 0x%x flags: 0x%x\n",
 		mode->crtc_clock,
 		mode->crtc_hdisplay, mode->crtc_hsync_start,
 		mode->crtc_hsync_end, mode->crtc_htotal,
 		mode->crtc_vdisplay, mode->crtc_vsync_start,
 		mode->crtc_vsync_end, mode->crtc_vtotal, mode->type, mode->flags);
+}
 static void intel_dump_pipe_config(struct intel_crtc *crtc,
 				   struct intel_crtc_config *pipe_config,
 				   const char *context)
+{
 	DRM_DEBUG_KMS("[CRTC:%d]%s config for pipe %c\n", crtc->base.base.id,
 		      context, pipe_name(crtc->pipe));
 	DRM_DEBUG_KMS("cpu_transcoder: %c\n", transcoder_name(pipe_config->cpu_transcoder));
 	DRM_DEBUG_KMS("pipe bpp: %i, dithering: %i\n",
 		      pipe_config->pipe_bpp, pipe_config->dither);
 	DRM_DEBUG_KMS("fdi/pch: %i, lanes: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
 		      pipe_config->has_pch_encoder,
 		      pipe_config->fdi_lanes,
 		      pipe_config->fdi_m_n.gmch_m, pipe_config->fdi_m_n.gmch_n,
 		      pipe_config->fdi_m_n.link_m, pipe_config->fdi_m_n.link_n,
 		      pipe_config->fdi_m_n.tu);
 	DRM_DEBUG_KMS("dp: %i, gmch_m: %u, gmch_n: %u, link_m: %u, link_n: %u, tu: %u\n",
 		      pipe_config->has_dp_encoder,
 		      pipe_config->dp_m_n.gmch_m, pipe_config->dp_m_n.gmch_n,
 		      pipe_config->dp_m_n.link_m, pipe_config->dp_m_n.link_n,
 		      pipe_config->dp_m_n.tu);
 	DRM_DEBUG_KMS("requested mode:\n");
 	drm_mode_debug_printmodeline(&pipe_config->requested_mode);
 	DRM_DEBUG_KMS("adjusted mode:\n");
 	drm_mode_debug_printmodeline(&pipe_config->adjusted_mode);
 	intel_dump_crtc_timings(&pipe_config->adjusted_mode);
 	DRM_DEBUG_KMS("port clock: %d\n", pipe_config->port_clock);
 	DRM_DEBUG_KMS("pipe src size: %dx%d\n",
 		      pipe_config->pipe_src_w, pipe_config->pipe_src_h);
 	DRM_DEBUG_KMS("gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
 		      pipe_config->gmch_pfit.control,
 		      pipe_config->gmch_pfit.pgm_ratios,
 		      pipe_config->gmch_pfit.lvds_border_bits);
 	DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
 		      pipe_config->pch_pfit.pos,
 		      pipe_config->pch_pfit.size,
 		      pipe_config->pch_pfit.enabled ? "enabled" : "disabled");
 	DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled);
 	DRM_DEBUG_KMS("double wide: %i\n", pipe_config->double_wide);
+}
+static bool encoders_cloneable(const struct intel_encoder *a,
-static bool check_encoder_cloning(struct drm_crtc *crtc)
+			       const struct intel_encoder *b)
+{
+	/* masks could be asymmetric, so check both ways */
+	return a == b || (a->cloneable & (1 << b->type) &&
+			  b->cloneable & (1 << a->type));
+}
+static bool check_single_encoder_cloning(struct intel_crtc *crtc,
+					 struct intel_encoder *encoder)
+{
-{
+	struct drm_device *dev = crtc->base.dev;
+	struct intel_encoder *source_encoder;
+	list_for_each_entry(source_encoder,
+			    &dev->mode_config.encoder_list, base.head) {
+		if (source_encoder->new_crtc != crtc)
+			continue;
-	int num_encoders = 0;
+		if (!encoders_cloneable(encoder, source_encoder))
+			return false;
+	}
+	return true;
+}
+static bool check_encoder_cloning(struct intel_crtc *crtc)
+{
-	bool uncloneable_encoders = false;
+	struct drm_device *dev = crtc->base.dev;
 	struct intel_encoder *encoder;
-	list_for_each_entry(encoder, &crtc->dev->mode_config.encoder_list,
+	list_for_each_entry(encoder,
-			    base.head) {
+			    &dev->mode_config.encoder_list, base.head) {
-		if (&encoder->new_crtc->base != crtc)
-			continue;
+		if (encoder->new_crtc != crtc)
+			continue;
 		num_encoders++;
-		if (!encoder->cloneable)
+		if (!check_single_encoder_cloning(crtc, encoder))
-			uncloneable_encoders = true;
+			return false;
+	}
-	return !(num_encoders > 1 && uncloneable_encoders);
+	return true;
+}
 static struct intel_crtc_config *
 intel_modeset_pipe_config(struct drm_crtc *crtc,
 			  struct drm_framebuffer *fb,
 			    struct drm_display_mode *mode)
+{
 	struct drm_device *dev = crtc->dev;
 	struct intel_encoder *encoder;
 	struct intel_crtc_config *pipe_config;
 	int plane_bpp, ret = -EINVAL;
 	bool retry = true;
-	if (!check_encoder_cloning(crtc)) {
+	if (!check_encoder_cloning(to_intel_crtc(crtc))) {
 		DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
 		return ERR_PTR(-EINVAL);
+	}
 	pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
 	if (!pipe_config)
 		return ERR_PTR(-ENOMEM);
 	drm_mode_copy(&pipe_config->adjusted_mode, mode);
 	drm_mode_copy(&pipe_config->requested_mode, mode);
 	pipe_config->cpu_transcoder =
 		(enum transcoder) to_intel_crtc(crtc)->pipe;
 	pipe_config->shared_dpll = DPLL_ID_PRIVATE;
 	/*
 	 * Sanitize sync polarity flags based on requested ones. If neither
 	 * positive or negative polarity is requested, treat this as meaning
 	 * negative polarity.
 	 */
 	if (!(pipe_config->adjusted_mode.flags &
 	      (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC)))
 		pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC;
 	if (!(pipe_config->adjusted_mode.flags &
 	      (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC)))
 		pipe_config->adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC;
 	/* Compute a starting value for pipe_config->pipe_bpp taking the source
 	 * plane pixel format and any sink constraints into account. Returns the
 	 * source plane bpp so that dithering can be selected on mismatches
 	 * after encoders and crtc also have had their say. */
 	plane_bpp = compute_baseline_pipe_bpp(to_intel_crtc(crtc),
 					      fb, pipe_config);
 	if (plane_bpp < 0)
 		goto fail;
 	/*
 	 * Determine the real pipe dimensions. Note that stereo modes can
 	 * increase the actual pipe size due to the frame doubling and
 	 * insertion of additional space for blanks between the frame. This
 	 * is stored in the crtc timings. We use the requested mode to do this
 	 * computation to clearly distinguish it from the adjusted mode, which
 	 * can be changed by the connectors in the below retry loop.
 	 */
 	drm_mode_set_crtcinfo(&pipe_config->requested_mode, CRTC_STEREO_DOUBLE);
 	pipe_config->pipe_src_w = pipe_config->requested_mode.crtc_hdisplay;
 	pipe_config->pipe_src_h = pipe_config->requested_mode.crtc_vdisplay;
 encoder_retry:
 	/* Ensure the port clock defaults are reset when retrying. */
 	pipe_config->port_clock = 0;
 	pipe_config->pixel_multiplier = 1;
 	/* Fill in default crtc timings, allow encoders to overwrite them. */
 	drm_mode_set_crtcinfo(&pipe_config->adjusted_mode, CRTC_STEREO_DOUBLE);
 	/* Pass our mode to the connectors and the CRTC to give them a chance to
 	 * adjust it according to limitations or connector properties, and also
 	 * a chance to reject the mode entirely.
 	 */
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 			    base.head) {
 		if (&encoder->new_crtc->base != crtc)
 			continue;
 			if (!(encoder->compute_config(encoder, pipe_config))) {
 				DRM_DEBUG_KMS("Encoder config failure\n");
 				goto fail;
+			}
+		}
 	/* Set default port clock if not overwritten by the encoder. Needs to be
 	 * done afterwards in case the encoder adjusts the mode. */
 	if (!pipe_config->port_clock)
 		pipe_config->port_clock = pipe_config->adjusted_mode.crtc_clock
 			* pipe_config->pixel_multiplier;
 	ret = intel_crtc_compute_config(to_intel_crtc(crtc), pipe_config);
 	if (ret < 0) {
 		DRM_DEBUG_KMS("CRTC fixup failed\n");
 		goto fail;
+	}
 	if (ret == RETRY) {
 		if (WARN(!retry, "loop in pipe configuration computation\n")) {
 			ret = -EINVAL;
 			goto fail;
+		}
 		DRM_DEBUG_KMS("CRTC bw constrained, retrying\n");
 		retry = false;
 		goto encoder_retry;
+	}
 	pipe_config->dither = pipe_config->pipe_bpp != plane_bpp;
 	DRM_DEBUG_KMS("plane bpp: %i, pipe bpp: %i, dithering: %i\n",
 		      plane_bpp, pipe_config->pipe_bpp, pipe_config->dither);
 	return pipe_config;
 fail:
 	kfree(pipe_config);
 	return ERR_PTR(ret);
+}
 /* Computes which crtcs are affected and sets the relevant bits in the mask. For
  * simplicity we use the crtc's pipe number (because it's easier to obtain). */
 static void
 intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
 			     unsigned *prepare_pipes, unsigned *disable_pipes)
+{
 	struct intel_crtc *intel_crtc;
 	struct drm_device *dev = crtc->dev;
 	struct intel_encoder *encoder;
 	struct intel_connector *connector;
 	struct drm_crtc *tmp_crtc;
 	*disable_pipes = *modeset_pipes = *prepare_pipes = 0;
 	/* Check which crtcs have changed outputs connected to them, these need
 	 * to be part of the prepare_pipes mask. We don't (yet) support global
 	 * modeset across multiple crtcs, so modeset_pipes will only have one
 	 * bit set at most. */
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    base.head) {
 		if (connector->base.encoder == &connector->new_encoder->base)
 			continue;
 		if (connector->base.encoder) {
 			tmp_crtc = connector->base.encoder->crtc;
 			*prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
+		}
 		if (connector->new_encoder)
 			*prepare_pipes |=
 << connector->new_encoder->new_crtc->pipe;
+	}
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 			    base.head) {
 		if (encoder->base.crtc == &encoder->new_crtc->base)
 			continue;
 		if (encoder->base.crtc) {
 			tmp_crtc = encoder->base.crtc;
 			*prepare_pipes |= 1 << to_intel_crtc(tmp_crtc)->pipe;
+		}
 		if (encoder->new_crtc)
 			*prepare_pipes |= 1 << encoder->new_crtc->pipe;
+	}
-	/* Check for any pipes that will be fully disabled ... */
+	/* Check for pipes that will be enabled/disabled ... */
-	list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
-			    base.head) {
-		bool used = false;
-		/* Don't try to disable disabled crtcs. */
+	for_each_intel_crtc(dev, intel_crtc) {
-		if (!intel_crtc->base.enabled)
+		if (intel_crtc->base.enabled == intel_crtc->new_enabled)
-			continue;
-		list_for_each_entry(encoder, &dev->mode_config.encoder_list,
+			continue;
-				    base.head) {
-			if (encoder->new_crtc == intel_crtc)
-				used = true;
-		}
+		if (!intel_crtc->new_enabled)
+			*disable_pipes |= 1 << intel_crtc->pipe;
-		if (!used)
+		else
-			*disable_pipes |= 1 << intel_crtc->pipe;
+			*prepare_pipes |= 1 << intel_crtc->pipe;
+	}
 	/* set_mode is also used to update properties on life display pipes. */
 	intel_crtc = to_intel_crtc(crtc);
-	if (crtc->enabled)
+	if (intel_crtc->new_enabled)
 		*prepare_pipes |= 1 << intel_crtc->pipe;
 	/*
 	 * For simplicity do a full modeset on any pipe where the output routing
 	 * changed. We could be more clever, but that would require us to be
 	 * more careful with calling the relevant encoder->mode_set functions.
 	 */
 	if (*prepare_pipes)
 		*modeset_pipes = *prepare_pipes;
 	/* ... and mask these out. */
 	*modeset_pipes &= ~(*disable_pipes);
 	*prepare_pipes &= ~(*disable_pipes);
 	/*
 	 * HACK: We don't (yet) fully support global modesets. intel_set_config
 	 * obies this rule, but the modeset restore mode of
 	 * intel_modeset_setup_hw_state does not.
 	 */
 	*modeset_pipes &= 1 << intel_crtc->pipe;
 	*prepare_pipes &= 1 << intel_crtc->pipe;
 	DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
 		      *modeset_pipes, *prepare_pipes, *disable_pipes);
+}
 static bool intel_crtc_in_use(struct drm_crtc *crtc)
+{
 	struct drm_encoder *encoder;
 	struct drm_device *dev = crtc->dev;
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
 		if (encoder->crtc == crtc)
 			return true;
 	return false;
+}
 static void
 intel_modeset_update_state(struct drm_device *dev, unsigned prepare_pipes)
+{
 	struct intel_encoder *intel_encoder;
 	struct intel_crtc *intel_crtc;
 	struct drm_connector *connector;
 	list_for_each_entry(intel_encoder, &dev->mode_config.encoder_list,
 			    base.head) {
 		if (!intel_encoder->base.crtc)
 			continue;
 		intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
 		if (prepare_pipes & (1 << intel_crtc->pipe))
 			intel_encoder->connectors_active = false;
+	}
 	intel_modeset_commit_output_state(dev);
-	/* Update computed state. */
+	/* Double check state. */
+	for_each_intel_crtc(dev, intel_crtc) {
-	list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list,
+		WARN_ON(intel_crtc->base.enabled != intel_crtc_in_use(&intel_crtc->base));
+		WARN_ON(intel_crtc->new_config &&
-			    base.head) {
+			intel_crtc->new_config != &intel_crtc->config);
-		intel_crtc->base.enabled = intel_crtc_in_use(&intel_crtc->base);
+		WARN_ON(intel_crtc->base.enabled != !!intel_crtc->new_config);
+	}
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		if (!connector->encoder || !connector->encoder->crtc)
 			continue;
 		intel_crtc = to_intel_crtc(connector->encoder->crtc);
 		if (prepare_pipes & (1 << intel_crtc->pipe)) {
 			struct drm_property *dpms_property =
 				dev->mode_config.dpms_property;
 			connector->dpms = DRM_MODE_DPMS_ON;
 			drm_object_property_set_value(&connector->base,
 							 dpms_property,
 							 DRM_MODE_DPMS_ON);
 			intel_encoder = to_intel_encoder(connector->encoder);
 			intel_encoder->connectors_active = true;
+		}
+	}
+}
 static bool intel_fuzzy_clock_check(int clock1, int clock2)
+{
 	int diff;
 	if (clock1 == clock2)
 		return true;
 	if (!clock1 || !clock2)
 		return false;
 	diff = abs(clock1 - clock2);
 	if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105)
 		return true;
 	return false;
+}
 #define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
 	list_for_each_entry((intel_crtc), \
 			    &(dev)->mode_config.crtc_list, \
 			    base.head) \
 		if (mask & (1 <<(intel_crtc)->pipe))
 static bool
 intel_pipe_config_compare(struct drm_device *dev,
 			  struct intel_crtc_config *current_config,
 			  struct intel_crtc_config *pipe_config)
+{
 #define PIPE_CONF_CHECK_X(name)	\
 	if (current_config->name != pipe_config->name) { \
 		DRM_ERROR("mismatch in " #name " " \
 			  "(expected 0x%08x, found 0x%08x)\n", \
 			  current_config->name, \
 			  pipe_config->name); \
 		return false; \
+	}
 #define PIPE_CONF_CHECK_I(name)	\
 	if (current_config->name != pipe_config->name) { \
 		DRM_ERROR("mismatch in " #name " " \
 			  "(expected %i, found %i)\n", \
 			  current_config->name, \
 			  pipe_config->name); \
 		return false; \
+	}
 #define PIPE_CONF_CHECK_FLAGS(name, mask)	\
 	if ((current_config->name ^ pipe_config->name) & (mask)) { \
 		DRM_ERROR("mismatch in " #name "(" #mask ") "	   \
 			  "(expected %i, found %i)\n", \
 			  current_config->name & (mask), \
 			  pipe_config->name & (mask)); \
 		return false; \
+	}
 #define PIPE_CONF_CHECK_CLOCK_FUZZY(name) \
 	if (!intel_fuzzy_clock_check(current_config->name, pipe_config->name)) { \
 		DRM_ERROR("mismatch in " #name " " \
 			  "(expected %i, found %i)\n", \
 			  current_config->name, \
 			  pipe_config->name); \
 		return false; \
+	}
 #define PIPE_CONF_QUIRK(quirk)	\
 	((current_config->quirks | pipe_config->quirks) & (quirk))
 	PIPE_CONF_CHECK_I(cpu_transcoder);
 	PIPE_CONF_CHECK_I(has_pch_encoder);
 	PIPE_CONF_CHECK_I(fdi_lanes);
 	PIPE_CONF_CHECK_I(fdi_m_n.gmch_m);
 	PIPE_CONF_CHECK_I(fdi_m_n.gmch_n);
 	PIPE_CONF_CHECK_I(fdi_m_n.link_m);
 	PIPE_CONF_CHECK_I(fdi_m_n.link_n);
 	PIPE_CONF_CHECK_I(fdi_m_n.tu);
 	PIPE_CONF_CHECK_I(has_dp_encoder);
 	PIPE_CONF_CHECK_I(dp_m_n.gmch_m);
 	PIPE_CONF_CHECK_I(dp_m_n.gmch_n);
 	PIPE_CONF_CHECK_I(dp_m_n.link_m);
 	PIPE_CONF_CHECK_I(dp_m_n.link_n);
 	PIPE_CONF_CHECK_I(dp_m_n.tu);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_hdisplay);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_htotal);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_start);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_hblank_end);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_start);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_hsync_end);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_vdisplay);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_vtotal);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_start);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_vblank_end);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_start);
 	PIPE_CONF_CHECK_I(adjusted_mode.crtc_vsync_end);
 		PIPE_CONF_CHECK_I(pixel_multiplier);
+	PIPE_CONF_CHECK_I(has_hdmi_sink);
+	if ((INTEL_INFO(dev)->gen < 8 && !IS_HASWELL(dev)) ||
+	    IS_VALLEYVIEW(dev))
+		PIPE_CONF_CHECK_I(limited_color_range);
+	PIPE_CONF_CHECK_I(has_audio);
 	PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
 			      DRM_MODE_FLAG_INTERLACE);
 	if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) {
 		PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
 				      DRM_MODE_FLAG_PHSYNC);
 		PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
 				      DRM_MODE_FLAG_NHSYNC);
 		PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
 				      DRM_MODE_FLAG_PVSYNC);
 		PIPE_CONF_CHECK_FLAGS(adjusted_mode.flags,
 				      DRM_MODE_FLAG_NVSYNC);
+	}
 	PIPE_CONF_CHECK_I(pipe_src_w);
 	PIPE_CONF_CHECK_I(pipe_src_h);
+	/*
+	 * FIXME: BIOS likes to set up a cloned config with lvds+external
+	 * screen. Since we don't yet re-compute the pipe config when moving
+	 * just the lvds port away to another pipe the sw tracking won't match.
+	 *
+	 * Proper atomic modesets with recomputed global state will fix this.
+	 * Until then just don't check gmch state for inherited modes.
+	 */
 	if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE)) {
 	PIPE_CONF_CHECK_I(gmch_pfit.control);
 	/* pfit ratios are autocomputed by the hw on gen4+ */
 	if (INTEL_INFO(dev)->gen < 4)
 		PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios);
 	PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits);
+	}
 	PIPE_CONF_CHECK_I(pch_pfit.enabled);
 	if (current_config->pch_pfit.enabled) {
 	PIPE_CONF_CHECK_I(pch_pfit.pos);
 	PIPE_CONF_CHECK_I(pch_pfit.size);
+	}
 	/* BDW+ don't expose a synchronous way to read the state */
 	if (IS_HASWELL(dev))
 	PIPE_CONF_CHECK_I(ips_enabled);
 	PIPE_CONF_CHECK_I(double_wide);
+	PIPE_CONF_CHECK_X(ddi_pll_sel);
 	PIPE_CONF_CHECK_I(shared_dpll);
 	PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
 	PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md);
 	PIPE_CONF_CHECK_X(dpll_hw_state.fp0);
 	PIPE_CONF_CHECK_X(dpll_hw_state.fp1);
+	PIPE_CONF_CHECK_X(dpll_hw_state.wrpll);
 	if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5)
 		PIPE_CONF_CHECK_I(pipe_bpp);
 	if (!HAS_DDI(dev)) {
 		PIPE_CONF_CHECK_CLOCK_FUZZY(adjusted_mode.crtc_clock);
-		PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
 		PIPE_CONF_CHECK_CLOCK_FUZZY(port_clock);
 #undef PIPE_CONF_CHECK_X
 #undef PIPE_CONF_CHECK_I
 #undef PIPE_CONF_CHECK_FLAGS
 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
 #undef PIPE_CONF_QUIRK
 	return true;
+}
 static void
 check_connector_state(struct drm_device *dev)
+{
 	struct intel_connector *connector;
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    base.head) {
 		/* This also checks the encoder/connector hw state with the
 		 * ->get_hw_state callbacks. */
 		intel_connector_check_state(connector);
 		WARN(&connector->new_encoder->base != connector->base.encoder,
 		     "connector's staged encoder doesn't match current encoder\n");
+	}
+}
 static void
 check_encoder_state(struct drm_device *dev)
+{
 	struct intel_encoder *encoder;
 	struct intel_connector *connector;
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 			    base.head) {
 		bool enabled = false;
 		bool active = false;
 		enum pipe pipe, tracked_pipe;
 		DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
 			      encoder->base.base.id,
-			      drm_get_encoder_name(&encoder->base));
+			      encoder->base.name);
 		WARN(&encoder->new_crtc->base != encoder->base.crtc,
 		     "encoder's stage crtc doesn't match current crtc\n");
 		WARN(encoder->connectors_active && !encoder->base.crtc,
 		     "encoder's active_connectors set, but no crtc\n");
 		list_for_each_entry(connector, &dev->mode_config.connector_list,
 				    base.head) {
 			if (connector->base.encoder != &encoder->base)
 				continue;
 			enabled = true;
 			if (connector->base.dpms != DRM_MODE_DPMS_OFF)
 				active = true;
+		}
+		/*
+		 * for MST connectors if we unplug the connector is gone
+		 * away but the encoder is still connected to a crtc
+		 * until a modeset happens in response to the hotplug.
+		 */
+		if (!enabled && encoder->base.encoder_type == DRM_MODE_ENCODER_DPMST)
+			continue;
 		WARN(!!encoder->base.crtc != enabled,
 		     "encoder's enabled state mismatch "
 		     "(expected %i, found %i)\n",
 		     !!encoder->base.crtc, enabled);
 		WARN(active && !encoder->base.crtc,
 		     "active encoder with no crtc\n");
 		WARN(encoder->connectors_active != active,
 		     "encoder's computed active state doesn't match tracked active state "
 		     "(expected %i, found %i)\n", active, encoder->connectors_active);
 		active = encoder->get_hw_state(encoder, &pipe);
 		WARN(active != encoder->connectors_active,
 		     "encoder's hw state doesn't match sw tracking "
 		     "(expected %i, found %i)\n",
 		     encoder->connectors_active, active);
 		if (!encoder->base.crtc)
 			continue;
 		tracked_pipe = to_intel_crtc(encoder->base.crtc)->pipe;
 		WARN(active && pipe != tracked_pipe,
 		     "active encoder's pipe doesn't match"
 		     "(expected %i, found %i)\n",
 		     tracked_pipe, pipe);
+	}
+}
 static void
 check_crtc_state(struct drm_device *dev)
+{
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *crtc;
 	struct intel_encoder *encoder;
 	struct intel_crtc_config pipe_config;
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list,
-			    base.head) {
+	for_each_intel_crtc(dev, crtc) {
 		bool enabled = false;
 		bool active = false;
 		memset(&pipe_config, 0, sizeof(pipe_config));
 		DRM_DEBUG_KMS("[CRTC:%d]\n",
 			      crtc->base.base.id);
 		WARN(crtc->active && !crtc->base.enabled,
 		     "active crtc, but not enabled in sw tracking\n");
 		list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 				    base.head) {
 			if (encoder->base.crtc != &crtc->base)
 				continue;
 			enabled = true;
 			if (encoder->connectors_active)
 				active = true;
+		}
 		WARN(active != crtc->active,
 		     "crtc's computed active state doesn't match tracked active state "
 		     "(expected %i, found %i)\n", active, crtc->active);
 		WARN(enabled != crtc->base.enabled,
 		     "crtc's computed enabled state doesn't match tracked enabled state "
 		     "(expected %i, found %i)\n", enabled, crtc->base.enabled);
 		active = dev_priv->display.get_pipe_config(crtc,
 							   &pipe_config);
 		/* hw state is inconsistent with the pipe A quirk */
 		if (crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE)
 			active = crtc->active;
 		list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 				    base.head) {
 			enum pipe pipe;
 			if (encoder->base.crtc != &crtc->base)
 				continue;
 			if (encoder->get_hw_state(encoder, &pipe))
 				encoder->get_config(encoder, &pipe_config);
+		}
 		WARN(crtc->active != active,
 		     "crtc active state doesn't match with hw state "
 		     "(expected %i, found %i)\n", crtc->active, active);
 		if (active &&
 		    !intel_pipe_config_compare(dev, &crtc->config, &pipe_config)) {
 			WARN(1, "pipe state doesn't match!\n");
 			intel_dump_pipe_config(crtc, &pipe_config,
 					       "[hw state]");
 			intel_dump_pipe_config(crtc, &crtc->config,
 					       "[sw state]");
+		}
+	}
+}
 static void
 check_shared_dpll_state(struct drm_device *dev)
+{
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *crtc;
 	struct intel_dpll_hw_state dpll_hw_state;
 	int i;
 	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
 		struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
 		int enabled_crtcs = 0, active_crtcs = 0;
 		bool active;
 		memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
 		DRM_DEBUG_KMS("%s\n", pll->name);
 		active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
 		WARN(pll->active > pll->refcount,
 		     "more active pll users than references: %i vs %i\n",
 		     pll->active, pll->refcount);
 		WARN(pll->active && !pll->on,
 		     "pll in active use but not on in sw tracking\n");
 		WARN(pll->on && !pll->active,
 		     "pll in on but not on in use in sw tracking\n");
 		WARN(pll->on != active,
 		     "pll on state mismatch (expected %i, found %i)\n",
 		     pll->on, active);
-		list_for_each_entry(crtc, &dev->mode_config.crtc_list,
-				    base.head) {
+		for_each_intel_crtc(dev, crtc) {
 			if (crtc->base.enabled && intel_crtc_to_shared_dpll(crtc) == pll)
 				enabled_crtcs++;
 			if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
 				active_crtcs++;
+		}
 		WARN(pll->active != active_crtcs,
 		     "pll active crtcs mismatch (expected %i, found %i)\n",
 		     pll->active, active_crtcs);
 		WARN(pll->refcount != enabled_crtcs,
 		     "pll enabled crtcs mismatch (expected %i, found %i)\n",
 		     pll->refcount, enabled_crtcs);
 		WARN(pll->on && memcmp(&pll->hw_state, &dpll_hw_state,
 				       sizeof(dpll_hw_state)),
 		     "pll hw state mismatch\n");
+	}
+}
 void
 intel_modeset_check_state(struct drm_device *dev)
+{
 	check_connector_state(dev);
 	check_encoder_state(dev);
 	check_crtc_state(dev);
 	check_shared_dpll_state(dev);
+}
 void ironlake_check_encoder_dotclock(const struct intel_crtc_config *pipe_config,
 				     int dotclock)
+{
 	/*
 	 * FDI already provided one idea for the dotclock.
 	 * Yell if the encoder disagrees.
 	 */
 	WARN(!intel_fuzzy_clock_check(pipe_config->adjusted_mode.crtc_clock, dotclock),
 	     "FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
 	     pipe_config->adjusted_mode.crtc_clock, dotclock);
+}
+static void update_scanline_offset(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
+	/*
+	 * The scanline counter increments at the leading edge of hsync.
+	 *
+	 * On most platforms it starts counting from vtotal-1 on the
+	 * first active line. That means the scanline counter value is
+	 * always one less than what we would expect. Ie. just after
+	 * start of vblank, which also occurs at start of hsync (on the
+	 * last active line), the scanline counter will read vblank_start-1.
+	 *
+	 * On gen2 the scanline counter starts counting from 1 instead
+	 * of vtotal-1, so we have to subtract one (or rather add vtotal-1
+	 * to keep the value positive), instead of adding one.
+	 *
+	 * On HSW+ the behaviour of the scanline counter depends on the output
+	 * type. For DP ports it behaves like most other platforms, but on HDMI
+	 * there's an extra 1 line difference. So we need to add two instead of
+	 * one to the value.
+	 */
+	if (IS_GEN2(dev)) {
+		const struct drm_display_mode *mode = &crtc->config.adjusted_mode;
+		int vtotal;
+		vtotal = mode->crtc_vtotal;
+		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+			vtotal /= 2;
+		crtc->scanline_offset = vtotal - 1;
+	} else if (HAS_DDI(dev) &&
+		   intel_pipe_has_type(&crtc->base, INTEL_OUTPUT_HDMI)) {
+		crtc->scanline_offset = 2;
+	} else
+		crtc->scanline_offset = 1;
+}
 static int __intel_set_mode(struct drm_crtc *crtc,
 		    struct drm_display_mode *mode,
 		    int x, int y, struct drm_framebuffer *fb)
+{
 	struct drm_device *dev = crtc->dev;
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_display_mode *saved_mode;
 	struct intel_crtc_config *pipe_config = NULL;
 	struct intel_crtc *intel_crtc;
 	unsigned disable_pipes, prepare_pipes, modeset_pipes;
 	int ret = 0;
 	saved_mode = kmalloc(sizeof(*saved_mode), GFP_KERNEL);
 	if (!saved_mode)
 		return -ENOMEM;
 	intel_modeset_affected_pipes(crtc, &modeset_pipes,
 				     &prepare_pipes, &disable_pipes);
 	*saved_mode = crtc->mode;
 	/* Hack: Because we don't (yet) support global modeset on multiple
 	 * crtcs, we don't keep track of the new mode for more than one crtc.
 	 * Hence simply check whether any bit is set in modeset_pipes in all the
 	 * pieces of code that are not yet converted to deal with mutliple crtcs
 	 * changing their mode at the same time. */
 	if (modeset_pipes) {
 		pipe_config = intel_modeset_pipe_config(crtc, fb, mode);
 		if (IS_ERR(pipe_config)) {
 			ret = PTR_ERR(pipe_config);
 			pipe_config = NULL;
 			goto out;
+		}
 		intel_dump_pipe_config(to_intel_crtc(crtc), pipe_config,
 				       "[modeset]");
+		to_intel_crtc(crtc)->new_config = pipe_config;
+	}
 	/*
 	 * See if the config requires any additional preparation, e.g.
 	 * to adjust global state with pipes off.  We need to do this
 	 * here so we can get the modeset_pipe updated config for the new
 	 * mode set on this crtc.  For other crtcs we need to use the
 	 * adjusted_mode bits in the crtc directly.
 	 */
 	if (IS_VALLEYVIEW(dev)) {
-		valleyview_modeset_global_pipes(dev, &prepare_pipes,
+		valleyview_modeset_global_pipes(dev, &prepare_pipes);
-						modeset_pipes, pipe_config);
 		/* may have added more to prepare_pipes than we should */
 		prepare_pipes &= ~disable_pipes;
+	}
 	for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
 		intel_crtc_disable(&intel_crtc->base);
 	for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
 		if (intel_crtc->base.enabled)
 			dev_priv->display.crtc_disable(&intel_crtc->base);
+	}
 	/* crtc->mode is already used by the ->mode_set callbacks, hence we need
 	 * to set it here already despite that we pass it down the callchain.
 	 */
 	if (modeset_pipes) {
 		crtc->mode = *mode;
 		/* mode_set/enable/disable functions rely on a correct pipe
 		 * config. */
 		to_intel_crtc(crtc)->config = *pipe_config;
+		to_intel_crtc(crtc)->new_config = &to_intel_crtc(crtc)->config;
 		/*
 		 * Calculate and store various constants which
 		 * are later needed by vblank and swap-completion
 		 * timestamping. They are derived from true hwmode.
 		 */
 		drm_calc_timestamping_constants(crtc,
 						&pipe_config->adjusted_mode);
+	}
 	/* Only after disabling all output pipelines that will be changed can we
 	 * update the the output configuration. */
 	intel_modeset_update_state(dev, prepare_pipes);
 	if (dev_priv->display.modeset_global_resources)
 		dev_priv->display.modeset_global_resources(dev);
 	/* Set up the DPLL and any encoders state that needs to adjust or depend
 	 * on the DPLL.
 	 */
 	for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
+		struct drm_framebuffer *old_fb = crtc->primary->fb;
+		struct drm_i915_gem_object *old_obj = intel_fb_obj(old_fb);
+		struct drm_i915_gem_object *obj = intel_fb_obj(fb);
+		mutex_lock(&dev->struct_mutex);
+		ret = intel_pin_and_fence_fb_obj(dev,
+						 obj,
+						 NULL);
+		if (ret != 0) {
+			DRM_ERROR("pin & fence failed\n");
+			mutex_unlock(&dev->struct_mutex);
+			goto done;
+		}
+		if (old_fb)
+			intel_unpin_fb_obj(old_obj);
+		i915_gem_track_fb(old_obj, obj,
+				  INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe));
+		mutex_unlock(&dev->struct_mutex);
+		crtc->primary->fb = fb;
+		crtc->x = x;
+		crtc->y = y;
-		ret = intel_crtc_mode_set(&intel_crtc->base,
+		ret = dev_priv->display.crtc_mode_set(&intel_crtc->base,
 					   x, y, fb);
 		if (ret)
 		    goto done;
+	}
 	/* Now enable the clocks, plane, pipe, and connectors that we set up. */
-	for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
+	for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc) {
+		update_scanline_offset(intel_crtc);
 		dev_priv->display.crtc_enable(&intel_crtc->base);
+	}
 	/* FIXME: add subpixel order */
 done:
 	if (ret && crtc->enabled)
 		crtc->mode = *saved_mode;
 out:
 	kfree(pipe_config);
 	kfree(saved_mode);
 	return ret;
+}
 static int intel_set_mode(struct drm_crtc *crtc,
 		     struct drm_display_mode *mode,
 		     int x, int y, struct drm_framebuffer *fb)
+{
 	int ret;
 	ret = __intel_set_mode(crtc, mode, x, y, fb);
 	if (ret == 0)
 		intel_modeset_check_state(crtc->dev);
 	return ret;
+}
 void intel_crtc_restore_mode(struct drm_crtc *crtc)
+{
-	intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->fb);
+	intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y, crtc->primary->fb);
+}
 #undef for_each_intel_crtc_masked
 static void intel_set_config_free(struct intel_set_config *config)
+{
 	if (!config)
 		return;
 	kfree(config->save_connector_encoders);
 	kfree(config->save_encoder_crtcs);
+	kfree(config->save_crtc_enabled);
 	kfree(config);
+}
 static int intel_set_config_save_state(struct drm_device *dev,
 				       struct intel_set_config *config)
+{
+	struct drm_crtc *crtc;
 	struct drm_encoder *encoder;
 	struct drm_connector *connector;
 	int count;
+	config->save_crtc_enabled =
+		kcalloc(dev->mode_config.num_crtc,
+			sizeof(bool), GFP_KERNEL);
+	if (!config->save_crtc_enabled)
+		return -ENOMEM;
 	config->save_encoder_crtcs =
 		kcalloc(dev->mode_config.num_encoder,
 			sizeof(struct drm_crtc *), GFP_KERNEL);
 	if (!config->save_encoder_crtcs)
 		return -ENOMEM;
 	config->save_connector_encoders =
 		kcalloc(dev->mode_config.num_connector,
 			sizeof(struct drm_encoder *), GFP_KERNEL);
 	if (!config->save_connector_encoders)
 		return -ENOMEM;
 	/* Copy data. Note that driver private data is not affected.
 	 * Should anything bad happen only the expected state is
 	 * restored, not the drivers personal bookkeeping.
 	 */
 	count = 0;
+	for_each_crtc(dev, crtc) {
+		config->save_crtc_enabled[count++] = crtc->enabled;
+	}
+	count = 0;
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 		config->save_encoder_crtcs[count++] = encoder->crtc;
+	}
 	count = 0;
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		config->save_connector_encoders[count++] = connector->encoder;
+	}
 	return 0;
+}
 static void intel_set_config_restore_state(struct drm_device *dev,
 					   struct intel_set_config *config)
+{
+	struct intel_crtc *crtc;
 	struct intel_encoder *encoder;
 	struct intel_connector *connector;
 	int count;
 	count = 0;
+	for_each_intel_crtc(dev, crtc) {
+		crtc->new_enabled = config->save_crtc_enabled[count++];
+		if (crtc->new_enabled)
+			crtc->new_config = &crtc->config;
+		else
+			crtc->new_config = NULL;
+	}
+	count = 0;
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
 		encoder->new_crtc =
 			to_intel_crtc(config->save_encoder_crtcs[count++]);
+	}
 	count = 0;
 	list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
 		connector->new_encoder =
 			to_intel_encoder(config->save_connector_encoders[count++]);
+	}
+}
 static bool
 is_crtc_connector_off(struct drm_mode_set *set)
+{
 	int i;
 	if (set->num_connectors == 0)
 		return false;
 	if (WARN_ON(set->connectors == NULL))
 		return false;
 	for (i = 0; i < set->num_connectors; i++)
 		if (set->connectors[i]->encoder &&
 		    set->connectors[i]->encoder->crtc == set->crtc &&
 		    set->connectors[i]->dpms != DRM_MODE_DPMS_ON)
 			return true;
 	return false;
+}
 static void
 intel_set_config_compute_mode_changes(struct drm_mode_set *set,
 				      struct intel_set_config *config)
+{
 	/* We should be able to check here if the fb has the same properties
 	 * and then just flip_or_move it */
 	if (is_crtc_connector_off(set)) {
 			config->mode_changed = true;
-	} else if (set->crtc->fb != set->fb) {
+	} else if (set->crtc->primary->fb != set->fb) {
+		/*
-		/* If we have no fb then treat it as a full mode set */
+		 * If we have no fb, we can only flip as long as the crtc is
+		 * active, otherwise we need a full mode set.  The crtc may
+		 * be active if we've only disabled the primary plane, or
+		 * in fastboot situations.
+		 */
-		if (set->crtc->fb == NULL) {
+		if (set->crtc->primary->fb == NULL) {
 			struct intel_crtc *intel_crtc =
 				to_intel_crtc(set->crtc);
-			if (intel_crtc->active && i915_fastboot) {
+			if (intel_crtc->active) {
 				DRM_DEBUG_KMS("crtc has no fb, will flip\n");
 				config->fb_changed = true;
 			} else {
 				DRM_DEBUG_KMS("inactive crtc, full mode set\n");
 			config->mode_changed = true;
+			}
 		} else if (set->fb == NULL) {
 			config->mode_changed = true;
 		} else if (set->fb->pixel_format !=
-			   set->crtc->fb->pixel_format) {
+			   set->crtc->primary->fb->pixel_format) {
 			config->mode_changed = true;
 		} else {
 			config->fb_changed = true;
+	}
+	}
 	if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y))
 		config->fb_changed = true;
 	if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) {
 		DRM_DEBUG_KMS("modes are different, full mode set\n");
 		drm_mode_debug_printmodeline(&set->crtc->mode);
 		drm_mode_debug_printmodeline(set->mode);
 		config->mode_changed = true;
+	}
 	DRM_DEBUG_KMS("computed changes for [CRTC:%d], mode_changed=%d, fb_changed=%d\n",
 			set->crtc->base.id, config->mode_changed, config->fb_changed);
+}
 static int
 intel_modeset_stage_output_state(struct drm_device *dev,
 				 struct drm_mode_set *set,
 				 struct intel_set_config *config)
+{
-	struct drm_crtc *new_crtc;
 	struct intel_connector *connector;
 	struct intel_encoder *encoder;
+	struct intel_crtc *crtc;
 	int ro;
 	/* The upper layers ensure that we either disable a crtc or have a list
 	 * of connectors. For paranoia, double-check this. */
 	WARN_ON(!set->fb && (set->num_connectors != 0));
 	WARN_ON(set->fb && (set->num_connectors == 0));
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    base.head) {
 		/* Otherwise traverse passed in connector list and get encoders
 		 * for them. */
 		for (ro = 0; ro < set->num_connectors; ro++) {
 			if (set->connectors[ro] == &connector->base) {
-				connector->new_encoder = connector->encoder;
+				connector->new_encoder = intel_find_encoder(connector, to_intel_crtc(set->crtc)->pipe);
 				break;
+			}
+		}
 		/* If we disable the crtc, disable all its connectors. Also, if
 		 * the connector is on the changing crtc but not on the new
 		 * connector list, disable it. */
 		if ((!set->fb || ro == set->num_connectors) &&
 		    connector->base.encoder &&
 		    connector->base.encoder->crtc == set->crtc) {
 			connector->new_encoder = NULL;
 			DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n",
 				connector->base.base.id,
-				drm_get_connector_name(&connector->base));
+				connector->base.name);
+		}
 		if (&connector->new_encoder->base != connector->base.encoder) {
 			DRM_DEBUG_KMS("encoder changed, full mode switch\n");
 			config->mode_changed = true;
+		}
+	}
 	/* connector->new_encoder is now updated for all connectors. */
 	/* Update crtc of enabled connectors. */
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    base.head) {
+		struct drm_crtc *new_crtc;
 		if (!connector->new_encoder)
 			continue;
 		new_crtc = connector->new_encoder->base.crtc;
 		for (ro = 0; ro < set->num_connectors; ro++) {
 			if (set->connectors[ro] == &connector->base)
 				new_crtc = set->crtc;
+		}
 		/* Make sure the new CRTC will work with the encoder */
 		if (!drm_encoder_crtc_ok(&connector->new_encoder->base,
 					   new_crtc)) {
 			return -EINVAL;
+		}
-		connector->encoder->new_crtc = to_intel_crtc(new_crtc);
+		connector->new_encoder->new_crtc = to_intel_crtc(new_crtc);
 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n",
 			connector->base.base.id,
-			drm_get_connector_name(&connector->base),
+			connector->base.name,
 			new_crtc->base.id);
+	}
 	/* Check for any encoders that needs to be disabled. */
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 			    base.head) {
 		int num_connectors = 0;
 		list_for_each_entry(connector,
 				    &dev->mode_config.connector_list,
 				    base.head) {
 			if (connector->new_encoder == encoder) {
 				WARN_ON(!connector->new_encoder->new_crtc);
 				num_connectors++;
+			}
+		}
 		if (num_connectors == 0)
 		encoder->new_crtc = NULL;
 		else if (num_connectors > 1)
 			return -EINVAL;
 		/* Only now check for crtc changes so we don't miss encoders
 		 * that will be disabled. */
 		if (&encoder->new_crtc->base != encoder->base.crtc) {
 			DRM_DEBUG_KMS("crtc changed, full mode switch\n");
 			config->mode_changed = true;
+		}
+	}
 	/* Now we've also updated encoder->new_crtc for all encoders. */
+	list_for_each_entry(connector, &dev->mode_config.connector_list,
+			    base.head) {
+		if (connector->new_encoder)
+			if (connector->new_encoder != connector->encoder)
+				connector->encoder = connector->new_encoder;
+	}
+	for_each_intel_crtc(dev, crtc) {
+		crtc->new_enabled = false;
+		list_for_each_entry(encoder,
+				    &dev->mode_config.encoder_list,
+				    base.head) {
+			if (encoder->new_crtc == crtc) {
+				crtc->new_enabled = true;
+				break;
+			}
+		}
+		if (crtc->new_enabled != crtc->base.enabled) {
+			DRM_DEBUG_KMS("crtc %sabled, full mode switch\n",
+				      crtc->new_enabled ? "en" : "dis");
+			config->mode_changed = true;
+		}
+		if (crtc->new_enabled)
+			crtc->new_config = &crtc->config;
+		else
+			crtc->new_config = NULL;
+	}
 	return 0;
+}
+static void disable_crtc_nofb(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct intel_encoder *encoder;
+	struct intel_connector *connector;
+	DRM_DEBUG_KMS("Trying to restore without FB -> disabling pipe %c\n",
+		      pipe_name(crtc->pipe));
+	list_for_each_entry(connector, &dev->mode_config.connector_list, base.head) {
+		if (connector->new_encoder &&
+		    connector->new_encoder->new_crtc == crtc)
+			connector->new_encoder = NULL;
+	}
+	list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
+		if (encoder->new_crtc == crtc)
+			encoder->new_crtc = NULL;
+	}
+	crtc->new_enabled = false;
+	crtc->new_config = NULL;
+}
 static int intel_crtc_set_config(struct drm_mode_set *set)
+{
 	struct drm_device *dev;
 	struct drm_mode_set save_set;
 	struct intel_set_config *config;
 	int ret;
 	BUG_ON(!set);
 	BUG_ON(!set->crtc);
 	BUG_ON(!set->crtc->helper_private);
 	/* Enforce sane interface api - has been abused by the fb helper. */
 	BUG_ON(!set->mode && set->fb);
 	BUG_ON(set->fb && set->num_connectors == 0);
 	if (set->fb) {
 		DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n",
 				set->crtc->base.id, set->fb->base.id,
 				(int)set->num_connectors, set->x, set->y);
 	} else {
 		DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id);
+	}
 	dev = set->crtc->dev;
 	ret = -ENOMEM;
 	config = kzalloc(sizeof(*config), GFP_KERNEL);
 	if (!config)
 		goto out_config;
 	ret = intel_set_config_save_state(dev, config);
 	if (ret)
 		goto out_config;
 	save_set.crtc = set->crtc;
 	save_set.mode = &set->crtc->mode;
 	save_set.x = set->crtc->x;
 	save_set.y = set->crtc->y;
-	save_set.fb = set->crtc->fb;
+	save_set.fb = set->crtc->primary->fb;
 	/* Compute whether we need a full modeset, only an fb base update or no
 	 * change at all. In the future we might also check whether only the
 	 * mode changed, e.g. for LVDS where we only change the panel fitter in
 	 * such cases. */
 	intel_set_config_compute_mode_changes(set, config);
 	ret = intel_modeset_stage_output_state(dev, set, config);
 	if (ret)
 		goto fail;
 	if (config->mode_changed) {
 		ret = intel_set_mode(set->crtc, set->mode,
 				     set->x, set->y, set->fb);
 	} else if (config->fb_changed) {
+		struct drm_i915_private *dev_priv = dev->dev_private;
-//       intel_crtc_wait_for_pending_flips(set->crtc);
+		struct intel_crtc *intel_crtc = to_intel_crtc(set->crtc);
 		ret = intel_pipe_set_base(set->crtc,
 					  set->x, set->y, set->fb);
+		/*
+		 * We need to make sure the primary plane is re-enabled if it
+		 * has previously been turned off.
+		 */
+		if (!intel_crtc->primary_enabled && ret == 0) {
+			WARN_ON(!intel_crtc->active);
+			intel_enable_primary_hw_plane(dev_priv, intel_crtc->plane,
+						      intel_crtc->pipe);
+		}
 		/*
 		 * In the fastboot case this may be our only check of the
 		 * state after boot.  It would be better to only do it on
 		 * the first update, but we don't have a nice way of doing that
 		 * (and really, set_config isn't used much for high freq page
 		 * flipping, so increasing its cost here shouldn't be a big
 		 * deal).
 		 */
-		if (i915_fastboot && ret == 0)
+		if (i915.fastboot && ret == 0)
 			intel_modeset_check_state(set->crtc->dev);
+	}
 	if (ret) {
 		DRM_DEBUG_KMS("failed to set mode on [CRTC:%d], err = %d\n",
 			  set->crtc->base.id, ret);
 fail:
 	intel_set_config_restore_state(dev, config);
+		/*
+		 * HACK: if the pipe was on, but we didn't have a framebuffer,
+		 * force the pipe off to avoid oopsing in the modeset code
+		 * due to fb==NULL. This should only happen during boot since
+		 * we don't yet reconstruct the FB from the hardware state.
+		 */
+		if (to_intel_crtc(save_set.crtc)->new_enabled && !save_set.fb)
+			disable_crtc_nofb(to_intel_crtc(save_set.crtc));
 	/* Try to restore the config */
 	if (config->mode_changed &&
 	    intel_set_mode(save_set.crtc, save_set.mode,
 			    save_set.x, save_set.y, save_set.fb))
 		DRM_ERROR("failed to restore config after modeset failure\n");
+	}
 out_config:
 	intel_set_config_free(config);
 	return ret;
+}
 static const struct drm_crtc_funcs intel_crtc_funcs = {
-//	.cursor_set = intel_crtc_cursor_set,
-	.cursor_move = intel_crtc_cursor_move,
 	.gamma_set = intel_crtc_gamma_set,
 	.set_config = intel_crtc_set_config,
 	.destroy = intel_crtc_destroy,
 //	.page_flip = intel_crtc_page_flip,
 };
-static void intel_cpu_pll_init(struct drm_device *dev)
-{
-	if (HAS_DDI(dev))
-		intel_ddi_pll_init(dev);
-}
 static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
 				      struct intel_shared_dpll *pll,
 				      struct intel_dpll_hw_state *hw_state)
+{
 	uint32_t val;
+	if (!intel_display_power_enabled(dev_priv, POWER_DOMAIN_PLLS))
+		return false;
 	val = I915_READ(PCH_DPLL(pll->id));
 	hw_state->dpll = val;
 	hw_state->fp0 = I915_READ(PCH_FP0(pll->id));
 	hw_state->fp1 = I915_READ(PCH_FP1(pll->id));
 	return val & DPLL_VCO_ENABLE;
+}
 static void ibx_pch_dpll_mode_set(struct drm_i915_private *dev_priv,
 				  struct intel_shared_dpll *pll)
+{
 	I915_WRITE(PCH_FP0(pll->id), pll->hw_state.fp0);
 	I915_WRITE(PCH_FP1(pll->id), pll->hw_state.fp1);
+}
 static void ibx_pch_dpll_enable(struct drm_i915_private *dev_priv,
 				struct intel_shared_dpll *pll)
+{
 	/* PCH refclock must be enabled first */
 	ibx_assert_pch_refclk_enabled(dev_priv);
 	I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
 	/* Wait for the clocks to stabilize. */
 	POSTING_READ(PCH_DPLL(pll->id));
 	udelay(150);
 	/* The pixel multiplier can only be updated once the
 	 * DPLL is enabled and the clocks are stable.
+	 *
 	 * So write it again.
 	 */
 	I915_WRITE(PCH_DPLL(pll->id), pll->hw_state.dpll);
 	POSTING_READ(PCH_DPLL(pll->id));
 	udelay(200);
+}
 static void ibx_pch_dpll_disable(struct drm_i915_private *dev_priv,
 				 struct intel_shared_dpll *pll)
+{
 	struct drm_device *dev = dev_priv->dev;
 	struct intel_crtc *crtc;
 	/* Make sure no transcoder isn't still depending on us. */
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
+	for_each_intel_crtc(dev, crtc) {
 		if (intel_crtc_to_shared_dpll(crtc) == pll)
 			assert_pch_transcoder_disabled(dev_priv, crtc->pipe);
+	}
 	I915_WRITE(PCH_DPLL(pll->id), 0);
 	POSTING_READ(PCH_DPLL(pll->id));
 	udelay(200);
+}
 static char *ibx_pch_dpll_names[] = {
 	"PCH DPLL A",
 	"PCH DPLL B",
 };
 static void ibx_pch_dpll_init(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int i;
 	dev_priv->num_shared_dpll = 2;
 	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
 		dev_priv->shared_dplls[i].id = i;
 		dev_priv->shared_dplls[i].name = ibx_pch_dpll_names[i];
 		dev_priv->shared_dplls[i].mode_set = ibx_pch_dpll_mode_set;
 		dev_priv->shared_dplls[i].enable = ibx_pch_dpll_enable;
 		dev_priv->shared_dplls[i].disable = ibx_pch_dpll_disable;
 		dev_priv->shared_dplls[i].get_hw_state =
 			ibx_pch_dpll_get_hw_state;
+	}
+}
 static void intel_shared_dpll_init(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
+	if (HAS_DDI(dev))
+		intel_ddi_pll_init(dev);
-	if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
+	else if (HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev))
 		ibx_pch_dpll_init(dev);
 	else
 		dev_priv->num_shared_dpll = 0;
 	BUG_ON(dev_priv->num_shared_dpll > I915_NUM_PLLS);
+}
+static int
+intel_primary_plane_disable(struct drm_plane *plane)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	struct intel_crtc *intel_crtc;
+	if (!plane->fb)
+		return 0;
+	BUG_ON(!plane->crtc);
+	intel_crtc = to_intel_crtc(plane->crtc);
+	/*
+	 * Even though we checked plane->fb above, it's still possible that
+	 * the primary plane has been implicitly disabled because the crtc
+	 * coordinates given weren't visible, or because we detected
+	 * that it was 100% covered by a sprite plane.  Or, the CRTC may be
+	 * off and we've set a fb, but haven't actually turned on the CRTC yet.
+	 * In either case, we need to unpin the FB and let the fb pointer get
+	 * updated, but otherwise we don't need to touch the hardware.
+	 */
+	if (!intel_crtc->primary_enabled)
+		goto disable_unpin;
+	intel_disable_primary_hw_plane(dev_priv, intel_plane->plane,
+				       intel_plane->pipe);
+disable_unpin:
+	mutex_lock(&dev->struct_mutex);
+	i915_gem_track_fb(intel_fb_obj(plane->fb), NULL,
+			  INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe));
+	intel_unpin_fb_obj(intel_fb_obj(plane->fb));
+	mutex_unlock(&dev->struct_mutex);
+	plane->fb = NULL;
+	return 0;
+}
+static int
+intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
+			     struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+			     unsigned int crtc_w, unsigned int crtc_h,
+			     uint32_t src_x, uint32_t src_y,
+			     uint32_t src_w, uint32_t src_h)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
+	struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb);
+	struct drm_rect dest = {
+		/* integer pixels */
+		.x1 = crtc_x,
+		.y1 = crtc_y,
+		.x2 = crtc_x + crtc_w,
+		.y2 = crtc_y + crtc_h,
+	};
+	struct drm_rect src = {
+		/* 16.16 fixed point */
+		.x1 = src_x,
+		.y1 = src_y,
+		.x2 = src_x + src_w,
+		.y2 = src_y + src_h,
+	};
+	const struct drm_rect clip = {
+		/* integer pixels */
+		.x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0,
+		.y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0,
+	};
+	bool visible;
+	int ret;
+	ret = drm_plane_helper_check_update(plane, crtc, fb,
+					    &src, &dest, &clip,
+					    DRM_PLANE_HELPER_NO_SCALING,
+					    DRM_PLANE_HELPER_NO_SCALING,
+					    false, true, &visible);
+	if (ret)
+		return ret;
+	/*
+	 * If the CRTC isn't enabled, we're just pinning the framebuffer,
+	 * updating the fb pointer, and returning without touching the
+	 * hardware.  This allows us to later do a drmModeSetCrtc with fb=-1 to
+	 * turn on the display with all planes setup as desired.
+	 */
+	if (!crtc->enabled) {
+		mutex_lock(&dev->struct_mutex);
+		/*
+		 * If we already called setplane while the crtc was disabled,
+		 * we may have an fb pinned; unpin it.
+		 */
+		if (plane->fb)
+			intel_unpin_fb_obj(old_obj);
+		i915_gem_track_fb(old_obj, obj,
+				  INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe));
+		/* Pin and return without programming hardware */
+		ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
+		mutex_unlock(&dev->struct_mutex);
+		return ret;
+	}
+	/*
+	 * If clipping results in a non-visible primary plane, we'll disable
+	 * the primary plane.  Note that this is a bit different than what
+	 * happens if userspace explicitly disables the plane by passing fb=0
+	 * because plane->fb still gets set and pinned.
+	 */
+	if (!visible) {
+		mutex_lock(&dev->struct_mutex);
+		/*
+		 * Try to pin the new fb first so that we can bail out if we
+		 * fail.
+		 */
+		if (plane->fb != fb) {
+			ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
+			if (ret) {
+				mutex_unlock(&dev->struct_mutex);
+				return ret;
+			}
+		}
+		i915_gem_track_fb(old_obj, obj,
+				  INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe));
+		if (intel_crtc->primary_enabled)
+			intel_disable_primary_hw_plane(dev_priv,
+						       intel_plane->plane,
+						       intel_plane->pipe);
+		if (plane->fb != fb)
+			if (plane->fb)
+				intel_unpin_fb_obj(old_obj);
+		mutex_unlock(&dev->struct_mutex);
+		return 0;
+	}
+	ret = intel_pipe_set_base(crtc, src.x1, src.y1, fb);
+	if (ret)
+		return ret;
+	if (!intel_crtc->primary_enabled)
+		intel_enable_primary_hw_plane(dev_priv, intel_crtc->plane,
+					      intel_crtc->pipe);
+	return 0;
+}
+/* Common destruction function for both primary and cursor planes */
+static void intel_plane_destroy(struct drm_plane *plane)
+{
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	drm_plane_cleanup(plane);
+	kfree(intel_plane);
+}
+static const struct drm_plane_funcs intel_primary_plane_funcs = {
+	.update_plane = intel_primary_plane_setplane,
+	.disable_plane = intel_primary_plane_disable,
+	.destroy = intel_plane_destroy,
+};
+static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
+						    int pipe)
+{
+	struct intel_plane *primary;
+	const uint32_t *intel_primary_formats;
+	int num_formats;
+	primary = kzalloc(sizeof(*primary), GFP_KERNEL);
+	if (primary == NULL)
+		return NULL;
+	primary->can_scale = false;
+	primary->max_downscale = 1;
+	primary->pipe = pipe;
+	primary->plane = pipe;
+	if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4)
+		primary->plane = !pipe;
+	if (INTEL_INFO(dev)->gen <= 3) {
+		intel_primary_formats = intel_primary_formats_gen2;
+		num_formats = ARRAY_SIZE(intel_primary_formats_gen2);
+	} else {
+		intel_primary_formats = intel_primary_formats_gen4;
+		num_formats = ARRAY_SIZE(intel_primary_formats_gen4);
+	}
+	drm_universal_plane_init(dev, &primary->base, 0,
+				 &intel_primary_plane_funcs,
+				 intel_primary_formats, num_formats,
+				 DRM_PLANE_TYPE_PRIMARY);
+	return &primary->base;
+}
+static int
+intel_cursor_plane_disable(struct drm_plane *plane)
+{
+	if (!plane->fb)
+		return 0;
+	BUG_ON(!plane->crtc);
+	return intel_crtc_cursor_set_obj(plane->crtc, NULL, 0, 0);
+}
+static int
+intel_cursor_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
+			  struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+			  unsigned int crtc_w, unsigned int crtc_h,
+			  uint32_t src_x, uint32_t src_y,
+			  uint32_t src_w, uint32_t src_h)
+{
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
+	struct drm_i915_gem_object *obj = intel_fb->obj;
+	struct drm_rect dest = {
+		/* integer pixels */
+		.x1 = crtc_x,
+		.y1 = crtc_y,
+		.x2 = crtc_x + crtc_w,
+		.y2 = crtc_y + crtc_h,
+	};
+	struct drm_rect src = {
+		/* 16.16 fixed point */
+		.x1 = src_x,
+		.y1 = src_y,
+		.x2 = src_x + src_w,
+		.y2 = src_y + src_h,
+	};
+	const struct drm_rect clip = {
+		/* integer pixels */
+		.x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0,
+		.y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0,
+	};
+	bool visible;
+	int ret;
+	ret = drm_plane_helper_check_update(plane, crtc, fb,
+					    &src, &dest, &clip,
+					    DRM_PLANE_HELPER_NO_SCALING,
+					    DRM_PLANE_HELPER_NO_SCALING,
+					    true, true, &visible);
+	if (ret)
+		return ret;
+	crtc->cursor_x = crtc_x;
+	crtc->cursor_y = crtc_y;
+	if (fb != crtc->cursor->fb) {
+		return intel_crtc_cursor_set_obj(crtc, obj, crtc_w, crtc_h);
+	} else {
+		intel_crtc_update_cursor(crtc, visible);
+		return 0;
+	}
+}
+static const struct drm_plane_funcs intel_cursor_plane_funcs = {
+	.update_plane = intel_cursor_plane_update,
+	.disable_plane = intel_cursor_plane_disable,
+	.destroy = intel_plane_destroy,
+};
+static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev,
+						   int pipe)
+{
+	struct intel_plane *cursor;
+	cursor = kzalloc(sizeof(*cursor), GFP_KERNEL);
+	if (cursor == NULL)
+		return NULL;
+	cursor->can_scale = false;
+	cursor->max_downscale = 1;
+	cursor->pipe = pipe;
+	cursor->plane = pipe;
+	drm_universal_plane_init(dev, &cursor->base, 0,
+				 &intel_cursor_plane_funcs,
+				 intel_cursor_formats,
+				 ARRAY_SIZE(intel_cursor_formats),
+				 DRM_PLANE_TYPE_CURSOR);
+	return &cursor->base;
+}
 static void intel_crtc_init(struct drm_device *dev, int pipe)
 {
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_crtc *intel_crtc;
+	struct drm_plane *primary = NULL;
-	struct intel_crtc *intel_crtc;
+	struct drm_plane *cursor = NULL;
-	int i;
+	int i, ret;
 	intel_crtc = kzalloc(sizeof(*intel_crtc), GFP_KERNEL);
 	if (intel_crtc == NULL)
 		return;
+	primary = intel_primary_plane_create(dev, pipe);
+	if (!primary)
+		goto fail;
+	cursor = intel_cursor_plane_create(dev, pipe);
+	if (!cursor)
+		goto fail;
+	ret = drm_crtc_init_with_planes(dev, &intel_crtc->base, primary,
+					cursor, &intel_crtc_funcs);
+	if (ret)
-	drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
+		goto fail;
 	drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
 	for (i = 0; i < 256; i++) {
 		intel_crtc->lut_r[i] = i;
 		intel_crtc->lut_g[i] = i;
 		intel_crtc->lut_b[i] = i;
+	}
 	/*
 	 * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
-	 * is hooked to plane B. Hence we want plane A feeding pipe B.
+	 * is hooked to pipe B. Hence we want plane A feeding pipe B.
 	 */
 	intel_crtc->pipe = pipe;
 	intel_crtc->plane = pipe;
 	if (HAS_FBC(dev) && INTEL_INFO(dev)->gen < 4) {
 		DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
 		intel_crtc->plane = !pipe;
+	}
+	intel_crtc->cursor_base = ~0;
+	intel_crtc->cursor_cntl = ~0;
+	init_waitqueue_head(&intel_crtc->vbl_wait);
 	BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
 	       dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
 	dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
 	dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
 	drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
+	WARN_ON(drm_crtc_index(&intel_crtc->base) != intel_crtc->pipe);
+	return;
+fail:
+	if (primary)
+		drm_plane_cleanup(primary);
+	if (cursor)
+		drm_plane_cleanup(cursor);
+	kfree(intel_crtc);
+}
 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector)
+{
 	struct drm_encoder *encoder = connector->base.encoder;
+	struct drm_device *dev = connector->base.dev;
-	WARN_ON(!mutex_is_locked(&connector->base.dev->mode_config.mutex));
+	WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
 	if (!encoder)
 		return INVALID_PIPE;
 	return to_intel_crtc(encoder->crtc)->pipe;
+}
 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 				struct drm_file *file)
+{
 	struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data;
-	struct drm_mode_object *drmmode_obj;
+	struct drm_crtc *drmmode_crtc;
 	struct intel_crtc *crtc;
 	if (!drm_core_check_feature(dev, DRIVER_MODESET))
 		return -ENODEV;
-	drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
-			DRM_MODE_OBJECT_CRTC);
+	drmmode_crtc = drm_crtc_find(dev, pipe_from_crtc_id->crtc_id);
-	if (!drmmode_obj) {
+	if (!drmmode_crtc) {
 		DRM_ERROR("no such CRTC id\n");
 		return -ENOENT;
+	}
-	crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
+	crtc = to_intel_crtc(drmmode_crtc);
 	pipe_from_crtc_id->pipe = crtc->pipe;
 	return 0;
+}
 static int intel_encoder_clones(struct intel_encoder *encoder)
+{
 	struct drm_device *dev = encoder->base.dev;
 	struct intel_encoder *source_encoder;
 	int index_mask = 0;
 	int entry = 0;
 	list_for_each_entry(source_encoder,
 			    &dev->mode_config.encoder_list, base.head) {
-		if (encoder == source_encoder)
-			index_mask |= (1 << entry);
-		/* Intel hw has only one MUX where enocoders could be cloned. */
-		if (encoder->cloneable && source_encoder->cloneable)
+		if (encoders_cloneable(encoder, source_encoder))
 			index_mask |= (1 << entry);
 		entry++;
+	}
 	return index_mask;
+}
 static bool has_edp_a(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	if (!IS_MOBILE(dev))
 		return false;
 	if ((I915_READ(DP_A) & DP_DETECTED) == 0)
 		return false;
-	if (IS_GEN5(dev) &&
-	    (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
+	if (IS_GEN5(dev) && (I915_READ(FUSE_STRAP) & ILK_eDP_A_DISABLE))
 		return false;
 	return true;
+}
 const char *intel_output_name(int output)
+{
 	static const char *names[] = {
 		[INTEL_OUTPUT_UNUSED] = "Unused",
 		[INTEL_OUTPUT_ANALOG] = "Analog",
 		[INTEL_OUTPUT_DVO] = "DVO",
 		[INTEL_OUTPUT_SDVO] = "SDVO",
 		[INTEL_OUTPUT_LVDS] = "LVDS",
 		[INTEL_OUTPUT_TVOUT] = "TV",
 		[INTEL_OUTPUT_HDMI] = "HDMI",
 		[INTEL_OUTPUT_DISPLAYPORT] = "DisplayPort",
 		[INTEL_OUTPUT_EDP] = "eDP",
 		[INTEL_OUTPUT_DSI] = "DSI",
 		[INTEL_OUTPUT_UNKNOWN] = "Unknown",
 	};
 	if (output < 0 || output >= ARRAY_SIZE(names) || !names[output])
 		return "Invalid";
 	return names[output];
+}
+static bool intel_crt_present(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	if (IS_ULT(dev))
+		return false;
+	if (IS_CHERRYVIEW(dev))
+		return false;
+	if (IS_VALLEYVIEW(dev) && !dev_priv->vbt.int_crt_support)
+		return false;
+	return true;
+}
 static void intel_setup_outputs(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *encoder;
 	bool dpd_is_edp = false;
 	intel_lvds_init(dev);
-	if (!IS_ULT(dev))
+	if (intel_crt_present(dev))
 	intel_crt_init(dev);
 	if (HAS_DDI(dev)) {
 		int found;
 		/* Haswell uses DDI functions to detect digital outputs */
 		found = I915_READ(DDI_BUF_CTL_A) & DDI_INIT_DISPLAY_DETECTED;
 		/* DDI A only supports eDP */
 		if (found)
 			intel_ddi_init(dev, PORT_A);
 		/* DDI B, C and D detection is indicated by the SFUSE_STRAP
 		 * register */
 		found = I915_READ(SFUSE_STRAP);
 		if (found & SFUSE_STRAP_DDIB_DETECTED)
 			intel_ddi_init(dev, PORT_B);
 		if (found & SFUSE_STRAP_DDIC_DETECTED)
 			intel_ddi_init(dev, PORT_C);
 		if (found & SFUSE_STRAP_DDID_DETECTED)
 			intel_ddi_init(dev, PORT_D);
 	} else if (HAS_PCH_SPLIT(dev)) {
 		int found;
 		dpd_is_edp = intel_dp_is_edp(dev, PORT_D);
 		if (has_edp_a(dev))
 			intel_dp_init(dev, DP_A, PORT_A);
 		if (I915_READ(PCH_HDMIB) & SDVO_DETECTED) {
 			/* PCH SDVOB multiplex with HDMIB */
 			found = intel_sdvo_init(dev, PCH_SDVOB, true);
 			if (!found)
 				intel_hdmi_init(dev, PCH_HDMIB, PORT_B);
 			if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
 				intel_dp_init(dev, PCH_DP_B, PORT_B);
+		}
 		if (I915_READ(PCH_HDMIC) & SDVO_DETECTED)
 			intel_hdmi_init(dev, PCH_HDMIC, PORT_C);
 		if (!dpd_is_edp && I915_READ(PCH_HDMID) & SDVO_DETECTED)
 			intel_hdmi_init(dev, PCH_HDMID, PORT_D);
 		if (I915_READ(PCH_DP_C) & DP_DETECTED)
 			intel_dp_init(dev, PCH_DP_C, PORT_C);
 		if (I915_READ(PCH_DP_D) & DP_DETECTED)
 			intel_dp_init(dev, PCH_DP_D, PORT_D);
 	} else if (IS_VALLEYVIEW(dev)) {
 		if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
 			intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
 					PORT_B);
 			if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
 				intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
+		}
 		if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) {
 			intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC,
 					PORT_C);
 		if (I915_READ(VLV_DISPLAY_BASE + DP_C) & DP_DETECTED)
 				intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C);
+		}
+		if (IS_CHERRYVIEW(dev)) {
+			if (I915_READ(VLV_DISPLAY_BASE + CHV_HDMID) & SDVO_DETECTED) {
+				intel_hdmi_init(dev, VLV_DISPLAY_BASE + CHV_HDMID,
+						PORT_D);
+				if (I915_READ(VLV_DISPLAY_BASE + DP_D) & DP_DETECTED)
+					intel_dp_init(dev, VLV_DISPLAY_BASE + DP_D, PORT_D);
+			}
+		}
 		intel_dsi_init(dev);
 	} else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
 		bool found = false;
 		if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
 			DRM_DEBUG_KMS("probing SDVOB\n");
 			found = intel_sdvo_init(dev, GEN3_SDVOB, true);
 			if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
 				DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
 				intel_hdmi_init(dev, GEN4_HDMIB, PORT_B);
+			}
 			if (!found && SUPPORTS_INTEGRATED_DP(dev))
 				intel_dp_init(dev, DP_B, PORT_B);
+			}
 		/* Before G4X SDVOC doesn't have its own detect register */
 		if (I915_READ(GEN3_SDVOB) & SDVO_DETECTED) {
 			DRM_DEBUG_KMS("probing SDVOC\n");
 			found = intel_sdvo_init(dev, GEN3_SDVOC, false);
+		}
 		if (!found && (I915_READ(GEN3_SDVOC) & SDVO_DETECTED)) {
 			if (SUPPORTS_INTEGRATED_HDMI(dev)) {
 				DRM_DEBUG_KMS("probing HDMI on SDVOC\n");
 				intel_hdmi_init(dev, GEN4_HDMIC, PORT_C);
+			}
 			if (SUPPORTS_INTEGRATED_DP(dev))
 				intel_dp_init(dev, DP_C, PORT_C);
+			}
 		if (SUPPORTS_INTEGRATED_DP(dev) &&
 		    (I915_READ(DP_D) & DP_DETECTED))
 			intel_dp_init(dev, DP_D, PORT_D);
 	} else if (IS_GEN2(dev))
 		intel_dvo_init(dev);
-//   if (SUPPORTS_TV(dev))
-//       intel_tv_init(dev);
+	intel_edp_psr_init(dev);
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.head) {
 		encoder->base.possible_crtcs = encoder->crtc_mask;
 		encoder->base.possible_clones =
 			intel_encoder_clones(encoder);
+	}
 	intel_init_pch_refclk(dev);
 	drm_helper_move_panel_connectors_to_head(dev);
+}
 static const struct drm_framebuffer_funcs intel_fb_funcs = {
 //	.destroy = intel_user_framebuffer_destroy,
 //	.create_handle = intel_user_framebuffer_create_handle,
 };
-int intel_framebuffer_init(struct drm_device *dev,
+static int intel_framebuffer_init(struct drm_device *dev,
 			   struct intel_framebuffer *intel_fb,
 			   struct drm_mode_fb_cmd2 *mode_cmd,
 			   struct drm_i915_gem_object *obj)
+{
-	int aligned_height, tile_height;
+	int aligned_height;
 	int pitch_limit;
 	int ret;
 	WARN_ON(!mutex_is_locked(&dev->struct_mutex));
 	if (obj->tiling_mode == I915_TILING_Y) {
 		DRM_DEBUG("hardware does not support tiling Y\n");
 		return -EINVAL;
+	}
 	if (mode_cmd->pitches[0] & 63) {
 		DRM_DEBUG("pitch (%d) must be at least 64 byte aligned\n",
 			  mode_cmd->pitches[0]);
 		return -EINVAL;
+	}
 	if (INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev)) {
 		pitch_limit = 32*1024;
 	} else if (INTEL_INFO(dev)->gen >= 4) {
 		if (obj->tiling_mode)
 			pitch_limit = 16*1024;
 		else
 			pitch_limit = 32*1024;
 	} else if (INTEL_INFO(dev)->gen >= 3) {
 		if (obj->tiling_mode)
 			pitch_limit = 8*1024;
 		else
 			pitch_limit = 16*1024;
 	} else
 		/* XXX DSPC is limited to 4k tiled */
 		pitch_limit = 8*1024;
 	if (mode_cmd->pitches[0] > pitch_limit) {
 		DRM_DEBUG("%s pitch (%d) must be at less than %d\n",
 			  obj->tiling_mode ? "tiled" : "linear",
 			  mode_cmd->pitches[0], pitch_limit);
 		return -EINVAL;
+	}
 	if (obj->tiling_mode != I915_TILING_NONE &&
 	    mode_cmd->pitches[0] != obj->stride) {
 		DRM_DEBUG("pitch (%d) must match tiling stride (%d)\n",
 			  mode_cmd->pitches[0], obj->stride);
 			return -EINVAL;
+	}
 	/* Reject formats not supported by any plane early. */
 	switch (mode_cmd->pixel_format) {
 	case DRM_FORMAT_C8:
 	case DRM_FORMAT_RGB565:
 	case DRM_FORMAT_XRGB8888:
 	case DRM_FORMAT_ARGB8888:
 		break;
 	case DRM_FORMAT_XRGB1555:
 	case DRM_FORMAT_ARGB1555:
 		if (INTEL_INFO(dev)->gen > 3) {
 			DRM_DEBUG("unsupported pixel format: %s\n",
 				  drm_get_format_name(mode_cmd->pixel_format));
 			return -EINVAL;
+		}
 		break;
 	case DRM_FORMAT_XBGR8888:
 	case DRM_FORMAT_ABGR8888:
 	case DRM_FORMAT_XRGB2101010:
 	case DRM_FORMAT_ARGB2101010:
 	case DRM_FORMAT_XBGR2101010:
 	case DRM_FORMAT_ABGR2101010:
 		if (INTEL_INFO(dev)->gen < 4) {
 			DRM_DEBUG("unsupported pixel format: %s\n",
 				  drm_get_format_name(mode_cmd->pixel_format));
 			return -EINVAL;
+		}
 		break;
 	case DRM_FORMAT_YUYV:
 	case DRM_FORMAT_UYVY:
 	case DRM_FORMAT_YVYU:
 	case DRM_FORMAT_VYUY:
 		if (INTEL_INFO(dev)->gen < 5) {
 			DRM_DEBUG("unsupported pixel format: %s\n",
 				  drm_get_format_name(mode_cmd->pixel_format));
 			return -EINVAL;
+		}
 		break;
 	default:
 		DRM_DEBUG("unsupported pixel format: %s\n",
 			  drm_get_format_name(mode_cmd->pixel_format));
 		return -EINVAL;
+	}
 	/* FIXME need to adjust LINOFF/TILEOFF accordingly. */
 	if (mode_cmd->offsets[0] != 0)
 		return -EINVAL;
-	tile_height = IS_GEN2(dev) ? 16 : 8;
-	aligned_height = ALIGN(mode_cmd->height,
+	aligned_height = intel_align_height(dev, mode_cmd->height,
-			       obj->tiling_mode ? tile_height : 1);
+					    obj->tiling_mode);
 	/* FIXME drm helper for size checks (especially planar formats)? */
 	if (obj->base.size < aligned_height * mode_cmd->pitches[0])
 		return -EINVAL;
 	drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
 	intel_fb->obj = obj;
 	intel_fb->obj->framebuffer_references++;
 	ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
 	if (ret) {
 		DRM_ERROR("framebuffer init failed %d\n", ret);
 		return ret;
+	}
 	return 0;
+}
 #ifndef CONFIG_DRM_I915_FBDEV
 static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
+{
+}
 #endif
 static const struct drm_mode_config_funcs intel_mode_funcs = {
 	.fb_create = NULL,
 	.output_poll_changed = intel_fbdev_output_poll_changed,
 };
 /* Set up chip specific display functions */
 static void intel_init_display(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	if (HAS_PCH_SPLIT(dev) || IS_G4X(dev))
 		dev_priv->display.find_dpll = g4x_find_best_dpll;
+	else if (IS_CHERRYVIEW(dev))
+		dev_priv->display.find_dpll = chv_find_best_dpll;
 	else if (IS_VALLEYVIEW(dev))
 		dev_priv->display.find_dpll = vlv_find_best_dpll;
 	else if (IS_PINEVIEW(dev))
 		dev_priv->display.find_dpll = pnv_find_best_dpll;
 	else
 		dev_priv->display.find_dpll = i9xx_find_best_dpll;
 	if (HAS_DDI(dev)) {
 		dev_priv->display.get_pipe_config = haswell_get_pipe_config;
+		dev_priv->display.get_plane_config = ironlake_get_plane_config;
 		dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
 		dev_priv->display.crtc_enable = haswell_crtc_enable;
 		dev_priv->display.crtc_disable = haswell_crtc_disable;
-		dev_priv->display.off = haswell_crtc_off;
+		dev_priv->display.off = ironlake_crtc_off;
-		dev_priv->display.update_plane = ironlake_update_plane;
+		dev_priv->display.update_primary_plane =
+			ironlake_update_primary_plane;
 	} else if (HAS_PCH_SPLIT(dev)) {
 		dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
+		dev_priv->display.get_plane_config = ironlake_get_plane_config;
 		dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set;
 		dev_priv->display.crtc_enable = ironlake_crtc_enable;
 		dev_priv->display.crtc_disable = ironlake_crtc_disable;
 		dev_priv->display.off = ironlake_crtc_off;
-		dev_priv->display.update_plane = ironlake_update_plane;
+		dev_priv->display.update_primary_plane =
+			ironlake_update_primary_plane;
 	} else if (IS_VALLEYVIEW(dev)) {
 		dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
+		dev_priv->display.get_plane_config = i9xx_get_plane_config;
 		dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
 		dev_priv->display.crtc_enable = valleyview_crtc_enable;
 		dev_priv->display.crtc_disable = i9xx_crtc_disable;
 		dev_priv->display.off = i9xx_crtc_off;
-		dev_priv->display.update_plane = i9xx_update_plane;
+		dev_priv->display.update_primary_plane =
+			i9xx_update_primary_plane;
 	} else {
 		dev_priv->display.get_pipe_config = i9xx_get_pipe_config;
+		dev_priv->display.get_plane_config = i9xx_get_plane_config;
 		dev_priv->display.crtc_mode_set = i9xx_crtc_mode_set;
 		dev_priv->display.crtc_enable = i9xx_crtc_enable;
 		dev_priv->display.crtc_disable = i9xx_crtc_disable;
 		dev_priv->display.off = i9xx_crtc_off;
-		dev_priv->display.update_plane = i9xx_update_plane;
+		dev_priv->display.update_primary_plane =
+			i9xx_update_primary_plane;
+	}
 	/* Returns the core display clock speed */
 	if (IS_VALLEYVIEW(dev))
 		dev_priv->display.get_display_clock_speed =
 			valleyview_get_display_clock_speed;
 	else if (IS_I945G(dev) || (IS_G33(dev) && !IS_PINEVIEW_M(dev)))
 		dev_priv->display.get_display_clock_speed =
 			i945_get_display_clock_speed;
 	else if (IS_I915G(dev))
 		dev_priv->display.get_display_clock_speed =
 			i915_get_display_clock_speed;
 	else if (IS_I945GM(dev) || IS_845G(dev))
 		dev_priv->display.get_display_clock_speed =
 			i9xx_misc_get_display_clock_speed;
 	else if (IS_PINEVIEW(dev))
 		dev_priv->display.get_display_clock_speed =
 			pnv_get_display_clock_speed;
 	else if (IS_I915GM(dev))
 		dev_priv->display.get_display_clock_speed =
 			i915gm_get_display_clock_speed;
 	else if (IS_I865G(dev))
 		dev_priv->display.get_display_clock_speed =
 			i865_get_display_clock_speed;
 	else if (IS_I85X(dev))
 		dev_priv->display.get_display_clock_speed =
 			i855_get_display_clock_speed;
 	else /* 852, 830 */
 		dev_priv->display.get_display_clock_speed =
 			i830_get_display_clock_speed;
 	if (HAS_PCH_SPLIT(dev)) {
 		if (IS_GEN5(dev)) {
 			dev_priv->display.fdi_link_train = ironlake_fdi_link_train;
 			dev_priv->display.write_eld = ironlake_write_eld;
 		} else if (IS_GEN6(dev)) {
 			dev_priv->display.fdi_link_train = gen6_fdi_link_train;
 			dev_priv->display.write_eld = ironlake_write_eld;
+			dev_priv->display.modeset_global_resources =
+				snb_modeset_global_resources;
 		} else if (IS_IVYBRIDGE(dev)) {
 			/* FIXME: detect B0+ stepping and use auto training */
 			dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
 			dev_priv->display.write_eld = ironlake_write_eld;
 			dev_priv->display.modeset_global_resources =
 				ivb_modeset_global_resources;
 		} else if (IS_HASWELL(dev) || IS_GEN8(dev)) {
 			dev_priv->display.fdi_link_train = hsw_fdi_link_train;
 			dev_priv->display.write_eld = haswell_write_eld;
 			dev_priv->display.modeset_global_resources =
 				haswell_modeset_global_resources;
+		}
 	} else if (IS_G4X(dev)) {
 		dev_priv->display.write_eld = g4x_write_eld;
 	} else if (IS_VALLEYVIEW(dev)) {
 		dev_priv->display.modeset_global_resources =
 			valleyview_modeset_global_resources;
 		dev_priv->display.write_eld = ironlake_write_eld;
+	}
 	/* Default just returns -ENODEV to indicate unsupported */
 //	dev_priv->display.queue_flip = intel_default_queue_flip;
 	intel_panel_init_backlight_funcs(dev);
+}
 /*
  * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend,
  * resume, or other times.  This quirk makes sure that's the case for
  * affected systems.
  */
 static void quirk_pipea_force(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	dev_priv->quirks |= QUIRK_PIPEA_FORCE;
 	DRM_INFO("applying pipe a force quirk\n");
+}
 /*
  * Some machines (Lenovo U160) do not work with SSC on LVDS for some reason
  */
 static void quirk_ssc_force_disable(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	dev_priv->quirks |= QUIRK_LVDS_SSC_DISABLE;
 	DRM_INFO("applying lvds SSC disable quirk\n");
+}
 /*
  * A machine (e.g. Acer Aspire 5734Z) may need to invert the panel backlight
  * brightness value
  */
 static void quirk_invert_brightness(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	dev_priv->quirks |= QUIRK_INVERT_BRIGHTNESS;
 	DRM_INFO("applying inverted panel brightness quirk\n");
+}
+/* Some VBT's incorrectly indicate no backlight is present */
+static void quirk_backlight_present(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	dev_priv->quirks |= QUIRK_BACKLIGHT_PRESENT;
+	DRM_INFO("applying backlight present quirk\n");
+}
 struct intel_quirk {
 	int device;
 	int subsystem_vendor;
 	int subsystem_device;
 	void (*hook)(struct drm_device *dev);
 };
 /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
 struct intel_dmi_quirk {
 	void (*hook)(struct drm_device *dev);
 	const struct dmi_system_id (*dmi_id_list)[];
 };
 static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
+{
 	DRM_INFO("Backlight polarity reversed on %s\n", id->ident);
 	return 1;
+}
 static const struct intel_dmi_quirk intel_dmi_quirks[] = {
+	{
 		.dmi_id_list = &(const struct dmi_system_id[]) {
+			{
 				.callback = intel_dmi_reverse_brightness,
 				.ident = "NCR Corporation",
 				.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
 					    DMI_MATCH(DMI_PRODUCT_NAME, ""),
 				},
 			},
 			{ }  /* terminating entry */
 		},
 		.hook = quirk_invert_brightness,
 	},
 };
 static struct intel_quirk intel_quirks[] = {
 	/* HP Mini needs pipe A force quirk (LP: #322104) */
 	{ 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
 	/* Toshiba Protege R-205, S-209 needs pipe A force quirk */
 	{ 0x2592, 0x1179, 0x0001, quirk_pipea_force },
 	/* ThinkPad T60 needs pipe A force quirk (bug #16494) */
 	{ 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
-	/* 830 needs to leave pipe A & dpll A up */
-	{ 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
 	/* Lenovo U160 cannot use SSC on LVDS */
 	{ 0x0046, 0x17aa, 0x3920, quirk_ssc_force_disable },
 	/* Sony Vaio Y cannot use SSC on LVDS */
 	{ 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable },
 	/* Acer Aspire 5734Z must invert backlight brightness */
 	{ 0x2a42, 0x1025, 0x0459, quirk_invert_brightness },
 	/* Acer/eMachines G725 */
 	{ 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
 	/* Acer/eMachines e725 */
 	{ 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
 	/* Acer/Packard Bell NCL20 */
 	{ 0x2a42, 0x1025, 0x034b, quirk_invert_brightness },
 	/* Acer Aspire 4736Z */
 	{ 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
+	/* Acer Aspire 5336 */
+	{ 0x2a42, 0x1025, 0x048a, quirk_invert_brightness },
+	/* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */
+	{ 0x0a06, 0x1025, 0x0a11, quirk_backlight_present },
+	/* Toshiba CB35 Chromebook (Celeron 2955U) */
+	{ 0x0a06, 0x1179, 0x0a88, quirk_backlight_present },
+	/* HP Chromebook 14 (Celeron 2955U) */
+	{ 0x0a06, 0x103c, 0x21ed, quirk_backlight_present },
 };
 static void intel_init_quirks(struct drm_device *dev)
+{
 	struct pci_dev *d = dev->pdev;
 	int i;
 	for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) {
 		struct intel_quirk *q = &intel_quirks[i];
 		if (d->device == q->device &&
 		    (d->subsystem_vendor == q->subsystem_vendor ||
 		     q->subsystem_vendor == PCI_ANY_ID) &&
 		    (d->subsystem_device == q->subsystem_device ||
 		     q->subsystem_device == PCI_ANY_ID))
 			q->hook(dev);
+	}
+}
 /* Disable the VGA plane that we never use */
 static void i915_disable_vga(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u8 sr1;
 	u32 vga_reg = i915_vgacntrl_reg(dev);
 //	vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
 	outb(SR01, VGA_SR_INDEX);
 	sr1 = inb(VGA_SR_DATA);
 	outb(sr1 | 1<<5, VGA_SR_DATA);
 //	vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
 	udelay(300);
 	I915_WRITE(vga_reg, VGA_DISP_DISABLE);
 	POSTING_READ(vga_reg);
+}
 void intel_modeset_init_hw(struct drm_device *dev)
+{
 	intel_prepare_ddi(dev);
+	if (IS_VALLEYVIEW(dev))
+		vlv_update_cdclk(dev);
 	intel_init_clock_gating(dev);
 	intel_reset_dpio(dev);
     mutex_lock(&dev->struct_mutex);
-    intel_enable_gt_powersave(dev);
-    mutex_unlock(&dev->struct_mutex);
+    intel_enable_gt_powersave(dev);
+}
 void intel_modeset_suspend_hw(struct drm_device *dev)
+{
 	intel_suspend_hw(dev);
+}
 void intel_modeset_init(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	int i, j, ret;
+	int sprite, ret;
+	enum pipe pipe;
+	struct intel_crtc *crtc;
 	drm_mode_config_init(dev);
 	dev->mode_config.min_width = 0;
 	dev->mode_config.min_height = 0;
 	dev->mode_config.preferred_depth = 24;
 	dev->mode_config.prefer_shadow = 1;
 	dev->mode_config.funcs = &intel_mode_funcs;
 	intel_init_quirks(dev);
 	intel_init_pm(dev);
 	if (INTEL_INFO(dev)->num_pipes == 0)
 		return;
 	intel_init_display(dev);
 	if (IS_GEN2(dev)) {
 		dev->mode_config.max_width = 2048;
 		dev->mode_config.max_height = 2048;
 	} else if (IS_GEN3(dev)) {
 		dev->mode_config.max_width = 4096;
 		dev->mode_config.max_height = 4096;
 	} else {
 		dev->mode_config.max_width = 8192;
 		dev->mode_config.max_height = 8192;
+	}
+	if (IS_GEN2(dev)) {
+		dev->mode_config.cursor_width = GEN2_CURSOR_WIDTH;
+		dev->mode_config.cursor_height = GEN2_CURSOR_HEIGHT;
+	} else {
+		dev->mode_config.cursor_width = MAX_CURSOR_WIDTH;
+		dev->mode_config.cursor_height = MAX_CURSOR_HEIGHT;
+	}
 	dev->mode_config.fb_base = dev_priv->gtt.mappable_base;
 	DRM_DEBUG_KMS("%d display pipe%s available.\n",
 		      INTEL_INFO(dev)->num_pipes,
 		      INTEL_INFO(dev)->num_pipes > 1 ? "s" : "");
-	for_each_pipe(i) {
+	for_each_pipe(pipe) {
-		intel_crtc_init(dev, i);
+		intel_crtc_init(dev, pipe);
-		for (j = 0; j < dev_priv->num_plane; j++) {
+		for_each_sprite(pipe, sprite) {
-			ret = intel_plane_init(dev, i, j);
+			ret = intel_plane_init(dev, pipe, sprite);
 		if (ret)
 				DRM_DEBUG_KMS("pipe %c sprite %c init failed: %d\n",
-					      pipe_name(i), sprite_name(i, j), ret);
+					      pipe_name(pipe), sprite_name(pipe, sprite), ret);
+		}
+	}
 	intel_init_dpio(dev);
 	intel_reset_dpio(dev);
 	intel_cpu_pll_init(dev);
 	intel_shared_dpll_init(dev);
 	/* Just disable it once at startup */
 	i915_disable_vga(dev);
 	intel_setup_outputs(dev);
 	/* Just in case the BIOS is doing something questionable. */
 	intel_disable_fbc(dev);
-}
-static void
+	drm_modeset_lock_all(dev);
+	intel_modeset_setup_hw_state(dev, false);
+	drm_modeset_unlock_all(dev);
+	for_each_intel_crtc(dev, crtc) {
+		if (!crtc->active)
-intel_connector_break_all_links(struct intel_connector *connector)
+			continue;
+		/*
+		 * Note that reserving the BIOS fb up front prevents us
+		 * from stuffing other stolen allocations like the ring
+		 * on top.  This prevents some ugliness at boot time, and
+		 * can even allow for smooth boot transitions if the BIOS
+		 * fb is large enough for the active pipe configuration.
-{
+		 */
-	connector->base.dpms = DRM_MODE_DPMS_OFF;
+		if (dev_priv->display.get_plane_config) {
+			dev_priv->display.get_plane_config(crtc,
+							   &crtc->plane_config);
-	connector->base.encoder = NULL;
+			/*
+			 * If the fb is shared between multiple heads, we'll
+			 * just get the first one.
-	connector->encoder->connectors_active = false;
+			 */
+			intel_find_plane_obj(crtc, &crtc->plane_config);
+		}
 	connector->encoder->base.crtc = NULL;
+}
 static void intel_enable_pipe_a(struct drm_device *dev)
+{
 	struct intel_connector *connector;
 	struct drm_connector *crt = NULL;
 	struct intel_load_detect_pipe load_detect_temp;
+	struct drm_modeset_acquire_ctx *ctx = dev->mode_config.acquire_ctx;
 	/* We can't just switch on the pipe A, we need to set things up with a
 	 * proper mode and output configuration. As a gross hack, enable pipe A
 	 * by enabling the load detect pipe once. */
 	list_for_each_entry(connector,
 			    &dev->mode_config.connector_list,
 			    base.head) {
 		if (connector->encoder->type == INTEL_OUTPUT_ANALOG) {
 			crt = &connector->base;
 			break;
+		}
+	}
 	if (!crt)
 		return;
-	if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp))
+	if (intel_get_load_detect_pipe(crt, NULL, &load_detect_temp, ctx))
-		intel_release_load_detect_pipe(crt, &load_detect_temp);
 		intel_release_load_detect_pipe(crt, &load_detect_temp);
+}
 static bool
 intel_check_plane_mapping(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 reg, val;
 	if (INTEL_INFO(dev)->num_pipes == 1)
 		return true;
 	reg = DSPCNTR(!crtc->plane);
 	val = I915_READ(reg);
 	if ((val & DISPLAY_PLANE_ENABLE) &&
 	    (!!(val & DISPPLANE_SEL_PIPE_MASK) == crtc->pipe))
 		return false;
 	return true;
+}
 static void intel_sanitize_crtc(struct intel_crtc *crtc)
+{
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 reg;
 	/* Clear any frame start delays used for debugging left by the BIOS */
 	reg = PIPECONF(crtc->config.cpu_transcoder);
 	I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
+	/* restore vblank interrupts to correct state */
+	if (crtc->active)
+		drm_vblank_on(dev, crtc->pipe);
+	else
+		drm_vblank_off(dev, crtc->pipe);
 	/* We need to sanitize the plane -> pipe mapping first because this will
 	 * disable the crtc (and hence change the state) if it is wrong. Note
 	 * that gen4+ has a fixed plane -> pipe mapping.  */
 	if (INTEL_INFO(dev)->gen < 4 && !intel_check_plane_mapping(crtc)) {
 		struct intel_connector *connector;
 		bool plane;
 		DRM_DEBUG_KMS("[CRTC:%d] wrong plane connection detected!\n",
 			      crtc->base.base.id);
 		/* Pipe has the wrong plane attached and the plane is active.
 		 * Temporarily change the plane mapping and disable everything
 		 * ...  */
 		plane = crtc->plane;
 		crtc->plane = !plane;
+		crtc->primary_enabled = true;
 		dev_priv->display.crtc_disable(&crtc->base);
 		crtc->plane = plane;
 		/* ... and break all links. */
 		list_for_each_entry(connector, &dev->mode_config.connector_list,
 				    base.head) {
 			if (connector->encoder->base.crtc != &crtc->base)
 				continue;
+			connector->base.dpms = DRM_MODE_DPMS_OFF;
+			connector->base.encoder = NULL;
+		}
+		/* multiple connectors may have the same encoder:
+		 *  handle them and break crtc link separately */
+		list_for_each_entry(connector, &dev->mode_config.connector_list,
+				    base.head)
+			if (connector->encoder->base.crtc == &crtc->base) {
+				connector->encoder->base.crtc = NULL;
-			intel_connector_break_all_links(connector);
+				connector->encoder->connectors_active = false;
+		}
 		WARN_ON(crtc->active);
 		crtc->base.enabled = false;
+	}
 	if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
 	    crtc->pipe == PIPE_A && !crtc->active) {
 		/* BIOS forgot to enable pipe A, this mostly happens after
 		 * resume. Force-enable the pipe to fix this, the update_dpms
 		 * call below we restore the pipe to the right state, but leave
 		 * the required bits on. */
 		intel_enable_pipe_a(dev);
+	}
 	/* Adjust the state of the output pipe according to whether we
 	 * have active connectors/encoders. */
 	intel_crtc_update_dpms(&crtc->base);
 	if (crtc->active != crtc->base.enabled) {
 		struct intel_encoder *encoder;
 		/* This can happen either due to bugs in the get_hw_state
 		 * functions or because the pipe is force-enabled due to the
 		 * pipe A quirk. */
 		DRM_DEBUG_KMS("[CRTC:%d] hw state adjusted, was %s, now %s\n",
 			      crtc->base.base.id,
 			      crtc->base.enabled ? "enabled" : "disabled",
 			      crtc->active ? "enabled" : "disabled");
 		crtc->base.enabled = crtc->active;
 		/* Because we only establish the connector -> encoder ->
 		 * crtc links if something is active, this means the
 		 * crtc is now deactivated. Break the links. connector
 		 * -> encoder links are only establish when things are
 		 *  actually up, hence no need to break them. */
 		WARN_ON(crtc->active);
 		for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
 			WARN_ON(encoder->connectors_active);
 			encoder->base.crtc = NULL;
+		}
+	}
+	if (crtc->active || IS_VALLEYVIEW(dev) || INTEL_INFO(dev)->gen < 5) {
+		/*
+		 * We start out with underrun reporting disabled to avoid races.
+		 * For correct bookkeeping mark this on active crtcs.
+		 *
+		 * Also on gmch platforms we dont have any hardware bits to
+		 * disable the underrun reporting. Which means we need to start
+		 * out with underrun reporting disabled also on inactive pipes,
+		 * since otherwise we'll complain about the garbage we read when
+		 * e.g. coming up after runtime pm.
+		 *
+		 * No protection against concurrent access is required - at
+		 * worst a fifo underrun happens which also sets this to false.
+		 */
+		crtc->cpu_fifo_underrun_disabled = true;
+		crtc->pch_fifo_underrun_disabled = true;
+		update_scanline_offset(crtc);
+	}
+}
 static void intel_sanitize_encoder(struct intel_encoder *encoder)
+{
 	struct intel_connector *connector;
 	struct drm_device *dev = encoder->base.dev;
 	/* We need to check both for a crtc link (meaning that the
 	 * encoder is active and trying to read from a pipe) and the
 	 * pipe itself being active. */
 	bool has_active_crtc = encoder->base.crtc &&
 		to_intel_crtc(encoder->base.crtc)->active;
 	if (encoder->connectors_active && !has_active_crtc) {
 		DRM_DEBUG_KMS("[ENCODER:%d:%s] has active connectors but no active pipe!\n",
 			      encoder->base.base.id,
-			      drm_get_encoder_name(&encoder->base));
+			      encoder->base.name);
 		/* Connector is active, but has no active pipe. This is
 		 * fallout from our resume register restoring. Disable
 		 * the encoder manually again. */
 		if (encoder->base.crtc) {
 			DRM_DEBUG_KMS("[ENCODER:%d:%s] manually disabled\n",
 				      encoder->base.base.id,
-				      drm_get_encoder_name(&encoder->base));
+				      encoder->base.name);
 			encoder->disable(encoder);
+			if (encoder->post_disable)
+				encoder->post_disable(encoder);
+		}
+		encoder->base.crtc = NULL;
+		encoder->connectors_active = false;
 		/* Inconsistent output/port/pipe state happens presumably due to
 		 * a bug in one of the get_hw_state functions. Or someplace else
 		 * in our code, like the register restore mess on resume. Clamp
 		 * things to off as a safer default. */
 		list_for_each_entry(connector,
 				    &dev->mode_config.connector_list,
 				    base.head) {
 			if (connector->encoder != encoder)
 				continue;
+			connector->base.dpms = DRM_MODE_DPMS_OFF;
-			intel_connector_break_all_links(connector);
+			connector->base.encoder = NULL;
+		}
+	}
 	/* Enabled encoders without active connectors will be fixed in
 	 * the crtc fixup. */
+}
-void i915_redisable_vga(struct drm_device *dev)
+void i915_redisable_vga_power_on(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 vga_reg = i915_vgacntrl_reg(dev);
+	if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) {
+		DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
+		i915_disable_vga(dev);
+	}
+}
+void i915_redisable_vga(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	/* This function can be called both from intel_modeset_setup_hw_state or
 	 * at a very early point in our resume sequence, where the power well
 	 * structures are not yet restored. Since this function is at a very
 	 * paranoid "someone might have enabled VGA while we were not looking"
 	 * level, just check if the power well is enabled instead of trying to
 	 * follow the "don't touch the power well if we don't need it" policy
 	 * the rest of the driver uses. */
-	if ((IS_HASWELL(dev) || IS_BROADWELL(dev)) &&
-	    (I915_READ(HSW_PWR_WELL_DRIVER) & HSW_PWR_WELL_STATE_ENABLED) == 0)
+	if (!intel_display_power_enabled(dev_priv, POWER_DOMAIN_VGA))
 		return;
-	if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) {
-		DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
-		i915_disable_vga(dev);
+	i915_redisable_vga_power_on(dev);
+}
+static bool primary_get_hw_state(struct intel_crtc *crtc)
+{
+	struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
+	if (!crtc->active)
+		return false;
 	return I915_READ(DSPCNTR(crtc->plane)) & DISPLAY_PLANE_ENABLE;
+}
 static void intel_modeset_readout_hw_state(struct drm_device *dev)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum pipe pipe;
 	struct intel_crtc *crtc;
 	struct intel_encoder *encoder;
 	struct intel_connector *connector;
 	int i;
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list,
-			    base.head) {
+	for_each_intel_crtc(dev, crtc) {
+		memset(&crtc->config, 0, sizeof(crtc->config));
-		memset(&crtc->config, 0, sizeof(crtc->config));
+		crtc->config.quirks |= PIPE_CONFIG_QUIRK_INHERITED_MODE;
 		crtc->active = dev_priv->display.get_pipe_config(crtc,
 								 &crtc->config);
 		crtc->base.enabled = crtc->active;
-		crtc->primary_enabled = crtc->active;
+		crtc->primary_enabled = primary_get_hw_state(crtc);
 		DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
 			      crtc->base.base.id,
 			      crtc->active ? "enabled" : "disabled");
+	}
-	/* FIXME: Smash this into the new shared dpll infrastructure. */
-	if (HAS_DDI(dev))
-		intel_ddi_setup_hw_pll_state(dev);
 	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
 		struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
 		pll->on = pll->get_hw_state(dev_priv, pll, &pll->hw_state);
 		pll->active = 0;
-		list_for_each_entry(crtc, &dev->mode_config.crtc_list,
+		for_each_intel_crtc(dev, crtc) {
-				    base.head) {
 			if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
 				pll->active++;
+		}
 		pll->refcount = pll->active;
 		DRM_DEBUG_KMS("%s hw state readout: refcount %i, on %i\n",
 			      pll->name, pll->refcount, pll->on);
+		if (pll->refcount)
+			intel_display_power_get(dev_priv, POWER_DOMAIN_PLLS);
+	}
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 			    base.head) {
 		pipe = 0;
 		if (encoder->get_hw_state(encoder, &pipe)) {
 			crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
 			encoder->base.crtc = &crtc->base;
 				encoder->get_config(encoder, &crtc->config);
 		} else {
 			encoder->base.crtc = NULL;
+		}
 		encoder->connectors_active = false;
 		DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
 			      encoder->base.base.id,
-			      drm_get_encoder_name(&encoder->base),
+			      encoder->base.name,
 			      encoder->base.crtc ? "enabled" : "disabled",
 			      pipe_name(pipe));
+	}
 	list_for_each_entry(connector, &dev->mode_config.connector_list,
 			    base.head) {
 		if (connector->get_hw_state(connector)) {
 			connector->base.dpms = DRM_MODE_DPMS_ON;
 			connector->encoder->connectors_active = true;
 			connector->base.encoder = &connector->encoder->base;
 		} else {
 			connector->base.dpms = DRM_MODE_DPMS_OFF;
 			connector->base.encoder = NULL;
+		}
 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] hw state readout: %s\n",
 			      connector->base.base.id,
-			      drm_get_connector_name(&connector->base),
+			      connector->base.name,
 			      connector->base.encoder ? "enabled" : "disabled");
+	}
+}
 /* Scan out the current hw modeset state, sanitizes it and maps it into the drm
  * and i915 state tracking structures. */
 void intel_modeset_setup_hw_state(struct drm_device *dev,
 				  bool force_restore)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum pipe pipe;
 	struct intel_crtc *crtc;
 	struct intel_encoder *encoder;
 	int i;
 	intel_modeset_readout_hw_state(dev);
 	/*
 	 * Now that we have the config, copy it to each CRTC struct
 	 * Note that this could go away if we move to using crtc_config
 	 * checking everywhere.
 	 */
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list,
+	for_each_intel_crtc(dev, crtc) {
-			    base.head) {
-		if (crtc->active && i915_fastboot) {
+		if (crtc->active && i915.fastboot) {
-			intel_crtc_mode_from_pipe_config(crtc, &crtc->config);
+			intel_mode_from_pipe_config(&crtc->base.mode, &crtc->config);
 			DRM_DEBUG_KMS("[CRTC:%d] found active mode: ",
 				      crtc->base.base.id);
 			drm_mode_debug_printmodeline(&crtc->base.mode);
+		}
+	}
 	/* HW state is read out, now we need to sanitize this mess. */
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list,
 			    base.head) {
 		intel_sanitize_encoder(encoder);
+	}
 	for_each_pipe(pipe) {
 		crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
 		intel_sanitize_crtc(crtc);
 		intel_dump_pipe_config(crtc, &crtc->config, "[setup_hw_state]");
+	}
 	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
 		struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
 		if (!pll->on || pll->active)
 			continue;
 		DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name);
 		pll->disable(dev_priv, pll);
 		pll->on = false;
+	}
 	if (HAS_PCH_SPLIT(dev))
 		ilk_wm_get_hw_state(dev);
 	if (force_restore) {
 		i915_redisable_vga(dev);
 		/*
 		 * We need to use raw interfaces for restoring state to avoid
 		 * checking (bogus) intermediate states.
 		 */
 		for_each_pipe(pipe) {
 			struct drm_crtc *crtc =
 				dev_priv->pipe_to_crtc_mapping[pipe];
 			__intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
-					 crtc->fb);
+					 crtc->primary->fb);
+		}
 	} else {
 	intel_modeset_update_staged_output_state(dev);
+	}
 	intel_modeset_check_state(dev);
+}
 void intel_modeset_gem_init(struct drm_device *dev)
+{
+	struct drm_crtc *c;
+	struct drm_i915_gem_object *obj;
+	mutex_lock(&dev->struct_mutex);
+	intel_init_gt_powersave(dev);
+	mutex_unlock(&dev->struct_mutex);
 	intel_modeset_init_hw(dev);
 //   intel_setup_overlay(dev);
+	/*
+	 * Make sure any fbs we allocated at startup are properly
+	 * pinned & fenced.  When we do the allocation it's too early
+	 * for this.
+	 */
-	mutex_lock(&dev->mode_config.mutex);
+	mutex_lock(&dev->struct_mutex);
+	for_each_crtc(dev, c) {
+		obj = intel_fb_obj(c->primary->fb);
+		if (obj == NULL)
+			continue;
-	drm_mode_config_reset(dev);
+		if (intel_pin_and_fence_fb_obj(dev, obj, NULL)) {
+			DRM_ERROR("failed to pin boot fb on pipe %d\n",
+				  to_intel_crtc(c)->pipe);
+			drm_framebuffer_unreference(c->primary->fb);
+			c->primary->fb = NULL;
+		}
-	intel_modeset_setup_hw_state(dev, false);
+	}
+	mutex_unlock(&dev->struct_mutex);
+}
+void intel_connector_unregister(struct intel_connector *intel_connector)
+{
+	struct drm_connector *connector = &intel_connector->base;
+	intel_panel_destroy_backlight(connector);
-	mutex_unlock(&dev->mode_config.mutex);
+	drm_connector_unregister(connector);
+}
 void intel_modeset_cleanup(struct drm_device *dev)
+{
 #if 0
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct drm_crtc *crtc;
 	struct drm_connector *connector;
 	/*
 	 * Interrupts and polling as the first thing to avoid creating havoc.
 	 * Too much stuff here (turning of rps, connectors, ...) would
 	 * experience fancy races otherwise.
 	 */
 	drm_irq_uninstall(dev);
-	cancel_work_sync(&dev_priv->hotplug_work);
+	intel_hpd_cancel_work(dev_priv);
+	dev_priv->pm._irqs_disabled = true;
 	/*
 	 * Due to the hpd irq storm handling the hotplug work can re-arm the
 	 * poll handlers. Hence disable polling after hpd handling is shut down.
 	 */
 	drm_kms_helper_poll_fini(dev);
 	mutex_lock(&dev->struct_mutex);
 	intel_unregister_dsm_handler();
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
-		/* Skip inactive CRTCs */
-		if (!crtc->fb)
-			continue;
-		intel_increase_pllclock(crtc);
-	}
 	intel_disable_fbc(dev);
 	intel_disable_gt_powersave(dev);
 	ironlake_teardown_rc6(dev);
 	mutex_unlock(&dev->struct_mutex);
 	/* flush any delayed tasks or pending work */
 	flush_scheduled_work();
 	/* destroy the backlight and sysfs files before encoders/connectors */
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		struct intel_connector *intel_connector;
-		intel_panel_destroy_backlight(connector);
+		intel_connector = to_intel_connector(connector);
-		drm_sysfs_connector_remove(connector);
+		intel_connector->unregister(intel_connector);
+	}
 	drm_mode_config_cleanup(dev);
+	intel_cleanup_overlay(dev);
+	mutex_lock(&dev->struct_mutex);
+	intel_cleanup_gt_powersave(dev);
+	mutex_unlock(&dev->struct_mutex);
 #endif
+}
 /*
  * Return which encoder is currently attached for connector.
  */
 struct drm_encoder *intel_best_encoder(struct drm_connector *connector)
+{
 	return &intel_attached_encoder(connector)->base;
+}
 void intel_connector_attach_encoder(struct intel_connector *connector,
 				    struct intel_encoder *encoder)
+{
 	connector->encoder = encoder;
 	drm_mode_connector_attach_encoder(&connector->base,
 					  &encoder->base);
+}
 /*
  * set vga decode state - true == enable VGA decode
  */
 int intel_modeset_vga_set_state(struct drm_device *dev, bool state)
+{
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	unsigned reg = INTEL_INFO(dev)->gen >= 6 ? SNB_GMCH_CTRL : INTEL_GMCH_CTRL;
 	u16 gmch_ctrl;
+	if (pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl)) {
+		DRM_ERROR("failed to read control word\n");
+		return -EIO;
+	}
+	if (!!(gmch_ctrl & INTEL_GMCH_VGA_DISABLE) == !state)
+		return 0;
 	pci_read_config_word(dev_priv->bridge_dev, reg, &gmch_ctrl);
 	if (state)
 		gmch_ctrl &= ~INTEL_GMCH_VGA_DISABLE;
 	else
 		gmch_ctrl |= INTEL_GMCH_VGA_DISABLE;
-	pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl);
+	if (pci_write_config_word(dev_priv->bridge_dev, reg, gmch_ctrl)) {
+		DRM_ERROR("failed to write control word\n");
+		return -EIO;
+	}
 	return 0;
+}
 #ifdef CONFIG_DEBUG_FS
 struct intel_display_error_state {
 	u32 power_well_driver;
 	int num_transcoders;
 	struct intel_cursor_error_state {
 		u32 control;
 		u32 position;
 		u32 base;
 		u32 size;
 	} cursor[I915_MAX_PIPES];
 	struct intel_pipe_error_state {
 		bool power_domain_on;
 		u32 source;
+		u32 stat;
 	} pipe[I915_MAX_PIPES];
 	struct intel_plane_error_state {
 		u32 control;
 		u32 stride;
 		u32 size;
 		u32 pos;
 		u32 addr;
 		u32 surface;
 		u32 tile_offset;
 	} plane[I915_MAX_PIPES];
 	struct intel_transcoder_error_state {
 		bool power_domain_on;
 		enum transcoder cpu_transcoder;
 		u32 conf;
 		u32 htotal;
 		u32 hblank;
 		u32 hsync;
 		u32 vtotal;
 		u32 vblank;
 		u32 vsync;
 	} transcoder[4];
 };
 struct intel_display_error_state *
 intel_display_capture_error_state(struct drm_device *dev)
+{
-	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_display_error_state *error;
 	int transcoders[] = {
 		TRANSCODER_A,
 		TRANSCODER_B,
 		TRANSCODER_C,
 		TRANSCODER_EDP,
 	};
 	int i;
 	if (INTEL_INFO(dev)->num_pipes == 0)
 		return NULL;
 	error = kzalloc(sizeof(*error), GFP_ATOMIC);
 	if (error == NULL)
 		return NULL;
 	if (IS_HASWELL(dev) || IS_BROADWELL(dev))
 		error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
 	for_each_pipe(i) {
 		error->pipe[i].power_domain_on =
-			intel_display_power_enabled_sw(dev, POWER_DOMAIN_PIPE(i));
+			intel_display_power_enabled_unlocked(dev_priv,
+						       POWER_DOMAIN_PIPE(i));
 		if (!error->pipe[i].power_domain_on)
 			continue;
 		if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
 		error->cursor[i].control = I915_READ(CURCNTR(i));
 		error->cursor[i].position = I915_READ(CURPOS(i));
 		error->cursor[i].base = I915_READ(CURBASE(i));
-		} else {
-			error->cursor[i].control = I915_READ(CURCNTR_IVB(i));
-			error->cursor[i].position = I915_READ(CURPOS_IVB(i));
-			error->cursor[i].base = I915_READ(CURBASE_IVB(i));
-		}
 		error->plane[i].control = I915_READ(DSPCNTR(i));
 		error->plane[i].stride = I915_READ(DSPSTRIDE(i));
 		if (INTEL_INFO(dev)->gen <= 3) {
 		error->plane[i].size = I915_READ(DSPSIZE(i));
 		error->plane[i].pos = I915_READ(DSPPOS(i));
+		}
 		if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
 		error->plane[i].addr = I915_READ(DSPADDR(i));
 		if (INTEL_INFO(dev)->gen >= 4) {
 			error->plane[i].surface = I915_READ(DSPSURF(i));
 			error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
+		}
 		error->pipe[i].source = I915_READ(PIPESRC(i));
+		if (HAS_GMCH_DISPLAY(dev))
+			error->pipe[i].stat = I915_READ(PIPESTAT(i));
+	}
 	error->num_transcoders = INTEL_INFO(dev)->num_pipes;
 	if (HAS_DDI(dev_priv->dev))
 		error->num_transcoders++; /* Account for eDP. */
 	for (i = 0; i < error->num_transcoders; i++) {
 		enum transcoder cpu_transcoder = transcoders[i];
 		error->transcoder[i].power_domain_on =
-			intel_display_power_enabled_sw(dev,
+			intel_display_power_enabled_unlocked(dev_priv,
 				POWER_DOMAIN_TRANSCODER(cpu_transcoder));
 		if (!error->transcoder[i].power_domain_on)
 			continue;
 		error->transcoder[i].cpu_transcoder = cpu_transcoder;
 		error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder));
 		error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
 		error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder));
 		error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder));
 		error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
 		error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder));
 		error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder));
+	}
 	return error;
+}
 #define err_printf(e, ...) i915_error_printf(e, __VA_ARGS__)
 void
 intel_display_print_error_state(struct drm_i915_error_state_buf *m,
 				struct drm_device *dev,
 				struct intel_display_error_state *error)
+{
 	int i;
 	if (!error)
 		return;
 	err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
 	if (IS_HASWELL(dev) || IS_BROADWELL(dev))
 		err_printf(m, "PWR_WELL_CTL2: %08x\n",
 			   error->power_well_driver);
 	for_each_pipe(i) {
 		err_printf(m, "Pipe [%d]:\n", i);
 		err_printf(m, "  Power: %s\n",
 			   error->pipe[i].power_domain_on ? "on" : "off");
 		err_printf(m, "  SRC: %08x\n", error->pipe[i].source);
+		err_printf(m, "  STAT: %08x\n", error->pipe[i].stat);
 		err_printf(m, "Plane [%d]:\n", i);
 		err_printf(m, "  CNTR: %08x\n", error->plane[i].control);
 		err_printf(m, "  STRIDE: %08x\n", error->plane[i].stride);
 		if (INTEL_INFO(dev)->gen <= 3) {
 			err_printf(m, "  SIZE: %08x\n", error->plane[i].size);
 			err_printf(m, "  POS: %08x\n", error->plane[i].pos);
+		}
 		if (INTEL_INFO(dev)->gen <= 7 && !IS_HASWELL(dev))
 			err_printf(m, "  ADDR: %08x\n", error->plane[i].addr);
 		if (INTEL_INFO(dev)->gen >= 4) {
 			err_printf(m, "  SURF: %08x\n", error->plane[i].surface);
 			err_printf(m, "  TILEOFF: %08x\n", error->plane[i].tile_offset);
+		}
 		err_printf(m, "Cursor [%d]:\n", i);
 		err_printf(m, "  CNTR: %08x\n", error->cursor[i].control);
 		err_printf(m, "  POS: %08x\n", error->cursor[i].position);
 		err_printf(m, "  BASE: %08x\n", error->cursor[i].base);
+	}
 	for (i = 0; i < error->num_transcoders; i++) {
 		err_printf(m, "CPU transcoder: %c\n",
 			   transcoder_name(error->transcoder[i].cpu_transcoder));
 		err_printf(m, "  Power: %s\n",
 			   error->transcoder[i].power_domain_on ? "on" : "off");
 		err_printf(m, "  CONF: %08x\n", error->transcoder[i].conf);
 		err_printf(m, "  HTOTAL: %08x\n", error->transcoder[i].htotal);
 		err_printf(m, "  HBLANK: %08x\n", error->transcoder[i].hblank);
 		err_printf(m, "  HSYNC: %08x\n", error->transcoder[i].hsync);
 		err_printf(m, "  VTOTAL: %08x\n", error->transcoder[i].vtotal);
 		err_printf(m, "  VBLANK: %08x\n", error->transcoder[i].vblank);
 		err_printf(m, "  VSYNC: %08x\n", error->transcoder[i].vsync);
+	}
+}
 #endif

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/i915/intel_display.c – Rev 4560 → 5060