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/* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
 */
/*
 *
 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * 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, sub license, 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 NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
 *
 */
 
#ifndef _I915_DRV_H_
#define _I915_DRV_H_
 
#include 
#include 
 
#include 
#include "i915_reg.h"
#include "intel_bios.h"
#include "intel_ringbuffer.h"
#include "intel_lrc.h"
#include "i915_gem_gtt.h"
#include "i915_gem_render_state.h"
#include 
#include 
#include 
#include 
#include  /* for struct drm_dma_handle */
#include 
#include 
#include 
#include 
#include "intel_guc.h"
 
#include 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/* General customization:
 */
 
#define DRIVER_NAME		"i915"
#define DRIVER_DESC		"Intel Graphics"
#define DRIVER_DATE		"20151218"
 
#undef WARN_ON
/* Many gcc seem to no see through this and fall over :( */
#if 0
#define WARN_ON(x) ({ \
	bool __i915_warn_cond = (x); \
	if (__builtin_constant_p(__i915_warn_cond)) \
		BUILD_BUG_ON(__i915_warn_cond); \
	WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })
#else
#define WARN_ON(x) WARN((x), "WARN_ON(%s)", #x )
#endif
 
#undef WARN_ON_ONCE
#define WARN_ON_ONCE(x) WARN_ONCE((x), "WARN_ON_ONCE(%s)", #x )
 
#define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
			     (long) (x), __func__);
 
/* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
 * WARN_ON()) for hw state sanity checks to check for unexpected conditions
 * which may not necessarily be a user visible problem.  This will either
 * WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
 * enable distros and users to tailor their preferred amount of i915 abrt
 * spam.
 */
#define I915_STATE_WARN(condition, format...) ({			\
	int __ret_warn_on = !!(condition);				\
	if (unlikely(__ret_warn_on)) {					\
		if (i915.verbose_state_checks)				\
			WARN(1, format);				\
		else 							\
			DRM_ERROR(format);				\
	}								\
	unlikely(__ret_warn_on);					\
})
 
#define I915_STATE_WARN_ON(condition) ({				\
	int __ret_warn_on = !!(condition);				\
	if (unlikely(__ret_warn_on)) {					\
		if (i915.verbose_state_checks)				\
			WARN(1, "WARN_ON(" #condition ")\n");		\
		else 							\
			DRM_ERROR("WARN_ON(" #condition ")\n");		\
	}								\
	unlikely(__ret_warn_on);					\
})
 
static inline const char *yesno(bool v)
{
	return v ? "yes" : "no";
}
 
enum pipe {
	INVALID_PIPE = -1,
	PIPE_A = 0,
	PIPE_B,
	PIPE_C,
	_PIPE_EDP,
	I915_MAX_PIPES = _PIPE_EDP
};
#define pipe_name(p) ((p) + 'A')
 
enum transcoder {
	TRANSCODER_A = 0,
	TRANSCODER_B,
	TRANSCODER_C,
	TRANSCODER_EDP,
	I915_MAX_TRANSCODERS
};
#define transcoder_name(t) ((t) + 'A')
 
/*
 * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
 * number of planes per CRTC.  Not all platforms really have this many planes,
 * which means some arrays of size I915_MAX_PLANES may have unused entries
 * between the topmost sprite plane and the cursor plane.
 */
enum plane {
	PLANE_A = 0,
	PLANE_B,
	PLANE_C,
	PLANE_CURSOR,
	I915_MAX_PLANES,
};
#define plane_name(p) ((p) + 'A')
 
#define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
 
enum port {
	PORT_A = 0,
	PORT_B,
	PORT_C,
	PORT_D,
	PORT_E,
	I915_MAX_PORTS
};
#define port_name(p) ((p) + 'A')
 
#define I915_NUM_PHYS_VLV 2
 
enum dpio_channel {
	DPIO_CH0,
	DPIO_CH1
};
 
enum dpio_phy {
	DPIO_PHY0,
	DPIO_PHY1
};
 
enum intel_display_power_domain {
	POWER_DOMAIN_PIPE_A,
	POWER_DOMAIN_PIPE_B,
	POWER_DOMAIN_PIPE_C,
	POWER_DOMAIN_PIPE_A_PANEL_FITTER,
	POWER_DOMAIN_PIPE_B_PANEL_FITTER,
	POWER_DOMAIN_PIPE_C_PANEL_FITTER,
	POWER_DOMAIN_TRANSCODER_A,
	POWER_DOMAIN_TRANSCODER_B,
	POWER_DOMAIN_TRANSCODER_C,
	POWER_DOMAIN_TRANSCODER_EDP,
 
	POWER_DOMAIN_PORT_DDI_A_LANES,
 
	POWER_DOMAIN_PORT_DDI_B_LANES,
 
	POWER_DOMAIN_PORT_DDI_C_LANES,
 
	POWER_DOMAIN_PORT_DDI_D_LANES,
	POWER_DOMAIN_PORT_DDI_E_LANES,
	POWER_DOMAIN_PORT_DSI,
	POWER_DOMAIN_PORT_CRT,
	POWER_DOMAIN_PORT_OTHER,
	POWER_DOMAIN_VGA,
	POWER_DOMAIN_AUDIO,
	POWER_DOMAIN_PLLS,
	POWER_DOMAIN_AUX_A,
	POWER_DOMAIN_AUX_B,
	POWER_DOMAIN_AUX_C,
	POWER_DOMAIN_AUX_D,
	POWER_DOMAIN_GMBUS,
	POWER_DOMAIN_MODESET,
	POWER_DOMAIN_INIT,
 
	POWER_DOMAIN_NUM,
};
 
#define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
#define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
		((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
#define POWER_DOMAIN_TRANSCODER(tran) \
	((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
	 (tran) + POWER_DOMAIN_TRANSCODER_A)
 
enum hpd_pin {
	HPD_NONE = 0,
	HPD_TV = HPD_NONE,     /* TV is known to be unreliable */
	HPD_CRT,
	HPD_SDVO_B,
	HPD_SDVO_C,
	HPD_PORT_A,
	HPD_PORT_B,
	HPD_PORT_C,
	HPD_PORT_D,
	HPD_PORT_E,
	HPD_NUM_PINS
};
 
#define for_each_hpd_pin(__pin) \
	for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
 
struct i915_hotplug {
	struct work_struct hotplug_work;
 
	struct {
		unsigned long last_jiffies;
		int count;
		enum {
			HPD_ENABLED = 0,
			HPD_DISABLED = 1,
			HPD_MARK_DISABLED = 2
		} state;
	} stats[HPD_NUM_PINS];
	u32 event_bits;
	struct delayed_work reenable_work;
 
	struct intel_digital_port *irq_port[I915_MAX_PORTS];
	u32 long_port_mask;
	u32 short_port_mask;
	struct work_struct dig_port_work;
 
	/*
	 * if we get a HPD irq from DP and a HPD irq from non-DP
	 * the non-DP HPD could block the workqueue on a mode config
	 * mutex getting, that userspace may have taken. However
	 * userspace is waiting on the DP workqueue to run which is
	 * blocked behind the non-DP one.
	 */
	struct workqueue_struct *dp_wq;
};
 
#define I915_GEM_GPU_DOMAINS \
	(I915_GEM_DOMAIN_RENDER | \
	 I915_GEM_DOMAIN_SAMPLER | \
	 I915_GEM_DOMAIN_COMMAND | \
	 I915_GEM_DOMAIN_INSTRUCTION | \
	 I915_GEM_DOMAIN_VERTEX)
 
#define for_each_pipe(__dev_priv, __p) \
	for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
#define for_each_plane(__dev_priv, __pipe, __p)				\
	for ((__p) = 0;							\
	     (__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1;	\
	     (__p)++)
#define for_each_sprite(__dev_priv, __p, __s)				\
	for ((__s) = 0;							\
	     (__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)];	\
	     (__s)++)
 
#define for_each_crtc(dev, crtc) \
	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 
#define for_each_intel_plane(dev, intel_plane) \
	list_for_each_entry(intel_plane,			\
			    &dev->mode_config.plane_list,	\
			    base.head)
 
#define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane)	\
	list_for_each_entry(intel_plane,				\
			    &(dev)->mode_config.plane_list,		\
			    base.head)					\
		for_each_if ((intel_plane)->pipe == (intel_crtc)->pipe)
 
#define for_each_intel_crtc(dev, intel_crtc) \
	list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
 
#define for_each_intel_encoder(dev, intel_encoder)		\
	list_for_each_entry(intel_encoder,			\
			    &(dev)->mode_config.encoder_list,	\
			    base.head)
 
#define for_each_intel_connector(dev, intel_connector)		\
	list_for_each_entry(intel_connector,			\
			    &dev->mode_config.connector_list,	\
			    base.head)
 
#define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
	list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
		for_each_if ((intel_encoder)->base.crtc == (__crtc))
 
#define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
	list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
		for_each_if ((intel_connector)->base.encoder == (__encoder))
 
#define for_each_power_domain(domain, mask)				\
	for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++)	\
		for_each_if ((1 << (domain)) & (mask))
 
struct drm_i915_private;
struct i915_mm_struct;
struct i915_mmu_object;
 
struct drm_i915_file_private {
	struct drm_i915_private *dev_priv;
	struct drm_file *file;
 
	struct {
		spinlock_t lock;
		struct list_head request_list;
/* 20ms is a fairly arbitrary limit (greater than the average frame time)
 * chosen to prevent the CPU getting more than a frame ahead of the GPU
 * (when using lax throttling for the frontbuffer). We also use it to
 * offer free GPU waitboosts for severely congested workloads.
 */
#define DRM_I915_THROTTLE_JIFFIES msecs_to_jiffies(20)
	} mm;
	struct idr context_idr;
 
	struct intel_rps_client {
		struct list_head link;
		unsigned boosts;
	} rps;
 
	struct intel_engine_cs *bsd_ring;
};
 
enum intel_dpll_id {
	DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
	/* real shared dpll ids must be >= 0 */
	DPLL_ID_PCH_PLL_A = 0,
	DPLL_ID_PCH_PLL_B = 1,
	/* hsw/bdw */
	DPLL_ID_WRPLL1 = 0,
	DPLL_ID_WRPLL2 = 1,
	DPLL_ID_SPLL = 2,
 
	/* skl */
	DPLL_ID_SKL_DPLL1 = 0,
	DPLL_ID_SKL_DPLL2 = 1,
	DPLL_ID_SKL_DPLL3 = 2,
};
#define I915_NUM_PLLS 3
 
struct intel_dpll_hw_state {
	/* i9xx, pch plls */
	uint32_t dpll;
	uint32_t dpll_md;
	uint32_t fp0;
	uint32_t fp1;
 
	/* hsw, bdw */
	uint32_t wrpll;
	uint32_t spll;
 
	/* skl */
	/*
	 * DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
	 * lower part of ctrl1 and they get shifted into position when writing
	 * the register.  This allows us to easily compare the state to share
	 * the DPLL.
	 */
	uint32_t ctrl1;
	/* HDMI only, 0 when used for DP */
	uint32_t cfgcr1, cfgcr2;
 
	/* bxt */
	uint32_t ebb0, ebb4, pll0, pll1, pll2, pll3, pll6, pll8, pll9, pll10,
		 pcsdw12;
};
 
struct intel_shared_dpll_config {
	unsigned crtc_mask; /* mask of CRTCs sharing this PLL */
	struct intel_dpll_hw_state hw_state;
};
 
struct intel_shared_dpll {
	struct intel_shared_dpll_config config;
 
	int active; /* count of number of active CRTCs (i.e. DPMS on) */
	bool on; /* is the PLL actually active? Disabled during modeset */
	const char *name;
	/* should match the index in the dev_priv->shared_dplls array */
	enum intel_dpll_id id;
	/* The mode_set hook is optional and should be used together with the
	 * intel_prepare_shared_dpll function. */
	void (*mode_set)(struct drm_i915_private *dev_priv,
			 struct intel_shared_dpll *pll);
	void (*enable)(struct drm_i915_private *dev_priv,
		       struct intel_shared_dpll *pll);
	void (*disable)(struct drm_i915_private *dev_priv,
			struct intel_shared_dpll *pll);
	bool (*get_hw_state)(struct drm_i915_private *dev_priv,
			     struct intel_shared_dpll *pll,
			     struct intel_dpll_hw_state *hw_state);
};
 
#define SKL_DPLL0 0
#define SKL_DPLL1 1
#define SKL_DPLL2 2
#define SKL_DPLL3 3
 
/* Used by dp and fdi links */
struct intel_link_m_n {
	uint32_t	tu;
	uint32_t	gmch_m;
	uint32_t	gmch_n;
	uint32_t	link_m;
	uint32_t	link_n;
};
 
void intel_link_compute_m_n(int bpp, int nlanes,
			    int pixel_clock, int link_clock,
			    struct intel_link_m_n *m_n);
 
/* Interface history:
 *
 * 1.1: Original.
 * 1.2: Add Power Management
 * 1.3: Add vblank support
 * 1.4: Fix cmdbuffer path, add heap destroy
 * 1.5: Add vblank pipe configuration
 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
 *      - Support vertical blank on secondary display pipe
 */
#define DRIVER_MAJOR		1
#define DRIVER_MINOR		6
#define DRIVER_PATCHLEVEL	0
 
#define WATCH_LISTS	0
 
struct opregion_header;
struct opregion_acpi;
struct opregion_swsci;
struct opregion_asle;
 
struct intel_opregion {
	struct opregion_header *header;
	struct opregion_acpi *acpi;
	struct opregion_swsci *swsci;
	u32 swsci_gbda_sub_functions;
	u32 swsci_sbcb_sub_functions;
	struct opregion_asle *asle;
	void *rvda;
	const void *vbt;
	u32 vbt_size;
	u32 *lid_state;
	struct work_struct asle_work;
};
#define OPREGION_SIZE            (8*1024)
 
struct intel_overlay;
struct intel_overlay_error_state;
 
#define I915_FENCE_REG_NONE -1
#define I915_MAX_NUM_FENCES 32
/* 32 fences + sign bit for FENCE_REG_NONE */
#define I915_MAX_NUM_FENCE_BITS 6
 
struct drm_i915_fence_reg {
	struct list_head lru_list;
	struct drm_i915_gem_object *obj;
	int pin_count;
};
 
struct sdvo_device_mapping {
	u8 initialized;
	u8 dvo_port;
	u8 slave_addr;
	u8 dvo_wiring;
	u8 i2c_pin;
	u8 ddc_pin;
};
 
struct intel_display_error_state;
 
struct drm_i915_error_state {
	struct kref ref;
	struct timeval time;
 
	char error_msg[128];
	int iommu;
	u32 reset_count;
	u32 suspend_count;
 
	/* Generic register state */
	u32 eir;
	u32 pgtbl_er;
	u32 ier;
	u32 gtier[4];
	u32 ccid;
	u32 derrmr;
	u32 forcewake;
	u32 error; /* gen6+ */
	u32 err_int; /* gen7 */
	u32 fault_data0; /* gen8, gen9 */
	u32 fault_data1; /* gen8, gen9 */
	u32 done_reg;
	u32 gac_eco;
	u32 gam_ecochk;
	u32 gab_ctl;
	u32 gfx_mode;
	u32 extra_instdone[I915_NUM_INSTDONE_REG];
	u64 fence[I915_MAX_NUM_FENCES];
	struct intel_overlay_error_state *overlay;
	struct intel_display_error_state *display;
	struct drm_i915_error_object *semaphore_obj;
 
	struct drm_i915_error_ring {
		bool valid;
		/* Software tracked state */
		bool waiting;
		int hangcheck_score;
		enum intel_ring_hangcheck_action hangcheck_action;
		int num_requests;
 
		/* our own tracking of ring head and tail */
		u32 cpu_ring_head;
		u32 cpu_ring_tail;
 
		u32 semaphore_seqno[I915_NUM_RINGS - 1];
 
		/* Register state */
		u32 start;
		u32 tail;
		u32 head;
		u32 ctl;
		u32 hws;
		u32 ipeir;
		u32 ipehr;
		u32 instdone;
		u32 bbstate;
		u32 instpm;
		u32 instps;
		u32 seqno;
		u64 bbaddr;
		u64 acthd;
		u32 fault_reg;
		u64 faddr;
		u32 rc_psmi; /* sleep state */
		u32 semaphore_mboxes[I915_NUM_RINGS - 1];
 
		struct drm_i915_error_object {
			int page_count;
			u64 gtt_offset;
			u32 *pages[0];
		} *ringbuffer, *batchbuffer, *wa_batchbuffer, *ctx, *hws_page;
 
		struct drm_i915_error_request {
			long jiffies;
			u32 seqno;
			u32 tail;
		} *requests;
 
		struct {
			u32 gfx_mode;
			union {
				u64 pdp[4];
				u32 pp_dir_base;
			};
		} vm_info;
 
		pid_t pid;
		char comm[TASK_COMM_LEN];
	} ring[I915_NUM_RINGS];
 
	struct drm_i915_error_buffer {
		u32 size;
		u32 name;
		u32 rseqno[I915_NUM_RINGS], wseqno;
		u64 gtt_offset;
		u32 read_domains;
		u32 write_domain;
		s32 fence_reg:I915_MAX_NUM_FENCE_BITS;
		s32 pinned:2;
		u32 tiling:2;
		u32 dirty:1;
		u32 purgeable:1;
		u32 userptr:1;
		s32 ring:4;
		u32 cache_level:3;
	} **active_bo, **pinned_bo;
 
	u32 *active_bo_count, *pinned_bo_count;
	u32 vm_count;
};
 
struct intel_connector;
struct intel_encoder;
struct intel_crtc_state;
struct intel_initial_plane_config;
struct intel_crtc;
struct intel_limit;
struct dpll;
 
struct drm_i915_display_funcs {
	int (*get_display_clock_speed)(struct drm_device *dev);
	int (*get_fifo_size)(struct drm_device *dev, int plane);
	/**
	 * find_dpll() - Find the best values for the PLL
	 * @limit: limits for the PLL
	 * @crtc: current CRTC
	 * @target: target frequency in kHz
	 * @refclk: reference clock frequency in kHz
	 * @match_clock: if provided, @best_clock P divider must
	 *               match the P divider from @match_clock
	 *               used for LVDS downclocking
	 * @best_clock: best PLL values found
	 *
	 * Returns true on success, false on failure.
	 */
	bool (*find_dpll)(const struct intel_limit *limit,
			  struct intel_crtc_state *crtc_state,
			  int target, int refclk,
			  struct dpll *match_clock,
			  struct dpll *best_clock);
	int (*compute_pipe_wm)(struct intel_crtc *crtc,
			       struct drm_atomic_state *state);
	void (*update_wm)(struct drm_crtc *crtc);
 
 
 
 
	int (*modeset_calc_cdclk)(struct drm_atomic_state *state);
	void (*modeset_commit_cdclk)(struct drm_atomic_state *state);
	/* Returns the active state of the crtc, and if the crtc is active,
	 * fills out the pipe-config with the hw state. */
	bool (*get_pipe_config)(struct intel_crtc *,
				struct intel_crtc_state *);
	void (*get_initial_plane_config)(struct intel_crtc *,
					 struct intel_initial_plane_config *);
	int (*crtc_compute_clock)(struct intel_crtc *crtc,
				  struct intel_crtc_state *crtc_state);
	void (*crtc_enable)(struct drm_crtc *crtc);
	void (*crtc_disable)(struct drm_crtc *crtc);
	void (*audio_codec_enable)(struct drm_connector *connector,
				   struct intel_encoder *encoder,
				   const struct drm_display_mode *adjusted_mode);
	void (*audio_codec_disable)(struct intel_encoder *encoder);
	void (*fdi_link_train)(struct drm_crtc *crtc);
	void (*init_clock_gating)(struct drm_device *dev);
	int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
			  struct drm_framebuffer *fb,
			  struct drm_i915_gem_object *obj,
			  struct drm_i915_gem_request *req,
			  uint32_t flags);
	void (*update_primary_plane)(struct drm_crtc *crtc,
				     struct drm_framebuffer *fb,
				     int x, int y);
	void (*hpd_irq_setup)(struct drm_device *dev);
	/* clock updates for mode set */
	/* cursor updates */
	/* render clock increase/decrease */
	/* display clock increase/decrease */
	/* pll clock increase/decrease */
};
 
enum forcewake_domain_id {
	FW_DOMAIN_ID_RENDER = 0,
	FW_DOMAIN_ID_BLITTER,
	FW_DOMAIN_ID_MEDIA,
 
	FW_DOMAIN_ID_COUNT
};
 
enum forcewake_domains {
	FORCEWAKE_RENDER = (1 << FW_DOMAIN_ID_RENDER),
	FORCEWAKE_BLITTER = (1 << FW_DOMAIN_ID_BLITTER),
	FORCEWAKE_MEDIA	= (1 << FW_DOMAIN_ID_MEDIA),
	FORCEWAKE_ALL = (FORCEWAKE_RENDER |
			 FORCEWAKE_BLITTER |
			 FORCEWAKE_MEDIA)
};
 
struct intel_uncore_funcs {
	void (*force_wake_get)(struct drm_i915_private *dev_priv,
							enum forcewake_domains domains);
	void (*force_wake_put)(struct drm_i915_private *dev_priv,
							enum forcewake_domains domains);
 
	uint8_t  (*mmio_readb)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
	uint16_t (*mmio_readw)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
	uint32_t (*mmio_readl)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
	uint64_t (*mmio_readq)(struct drm_i915_private *dev_priv, i915_reg_t r, bool trace);
 
	void (*mmio_writeb)(struct drm_i915_private *dev_priv, i915_reg_t r,
				uint8_t val, bool trace);
	void (*mmio_writew)(struct drm_i915_private *dev_priv, i915_reg_t r,
				uint16_t val, bool trace);
	void (*mmio_writel)(struct drm_i915_private *dev_priv, i915_reg_t r,
				uint32_t val, bool trace);
	void (*mmio_writeq)(struct drm_i915_private *dev_priv, i915_reg_t r,
				uint64_t val, bool trace);
};
 
struct intel_uncore {
	spinlock_t lock; /** lock is also taken in irq contexts. */
 
	struct intel_uncore_funcs funcs;
 
	unsigned fifo_count;
	enum forcewake_domains fw_domains;
 
	struct intel_uncore_forcewake_domain {
		struct drm_i915_private *i915;
		enum forcewake_domain_id id;
		unsigned wake_count;
		struct timer_list timer;
		i915_reg_t reg_set;
		u32 val_set;
		u32 val_clear;
		i915_reg_t reg_ack;
		i915_reg_t reg_post;
		u32 val_reset;
	} fw_domain[FW_DOMAIN_ID_COUNT];
};
 
/* Iterate over initialised fw domains */
#define for_each_fw_domain_mask(domain__, mask__, dev_priv__, i__) \
	for ((i__) = 0, (domain__) = &(dev_priv__)->uncore.fw_domain[0]; \
	     (i__) < FW_DOMAIN_ID_COUNT; \
	     (i__)++, (domain__) = &(dev_priv__)->uncore.fw_domain[i__]) \
		for_each_if (((mask__) & (dev_priv__)->uncore.fw_domains) & (1 << (i__)))
 
#define for_each_fw_domain(domain__, dev_priv__, i__) \
	for_each_fw_domain_mask(domain__, FORCEWAKE_ALL, dev_priv__, i__)
 
#define CSR_VERSION(major, minor)	((major) << 16 | (minor))
#define CSR_VERSION_MAJOR(version)	((version) >> 16)
 
 
#define CSR_VERSION_MINOR(version)	((version) & 0xffff)
 
struct intel_csr {
	struct work_struct work;
	const char *fw_path;
	uint32_t *dmc_payload;
	uint32_t dmc_fw_size;
	uint32_t version;
	uint32_t mmio_count;
	i915_reg_t mmioaddr[8];
	uint32_t mmiodata[8];
	uint32_t dc_state;
};
 
#define DEV_INFO_FOR_EACH_FLAG(func, sep) \
	func(is_mobile) sep \
	func(is_i85x) sep \
	func(is_i915g) sep \
	func(is_i945gm) sep \
	func(is_g33) sep \
	func(need_gfx_hws) sep \
	func(is_g4x) sep \
	func(is_pineview) sep \
	func(is_broadwater) sep \
	func(is_crestline) sep \
	func(is_ivybridge) sep \
	func(is_valleyview) sep \
	func(is_cherryview) sep \
	func(is_haswell) sep \
	func(is_skylake) sep \
	func(is_broxton) sep \
	func(is_kabylake) sep \
	func(is_preliminary) sep \
	func(has_fbc) sep \
	func(has_pipe_cxsr) sep \
	func(has_hotplug) sep \
	func(cursor_needs_physical) sep \
	func(has_overlay) sep \
	func(overlay_needs_physical) sep \
	func(supports_tv) sep \
	func(has_llc) sep \
	func(has_ddi) sep \
	func(has_fpga_dbg)
 
#define DEFINE_FLAG(name) u8 name:1
#define SEP_SEMICOLON ;
 
struct intel_device_info {
	u32 display_mmio_offset;
	u16 device_id;
	u8 num_pipes:3;
	u8 num_sprites[I915_MAX_PIPES];
	u8 gen;
	u8 ring_mask; /* Rings supported by the HW */
	DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
	/* Register offsets for the various display pipes and transcoders */
	int pipe_offsets[I915_MAX_TRANSCODERS];
	int trans_offsets[I915_MAX_TRANSCODERS];
	int palette_offsets[I915_MAX_PIPES];
	int cursor_offsets[I915_MAX_PIPES];
 
	/* Slice/subslice/EU info */
	u8 slice_total;
	u8 subslice_total;
	u8 subslice_per_slice;
	u8 eu_total;
	u8 eu_per_subslice;
	/* For each slice, which subslice(s) has(have) 7 EUs (bitfield)? */
	u8 subslice_7eu[3];
	u8 has_slice_pg:1;
	u8 has_subslice_pg:1;
	u8 has_eu_pg:1;
};
 
#undef DEFINE_FLAG
#undef SEP_SEMICOLON
 
enum i915_cache_level {
	I915_CACHE_NONE = 0,
	I915_CACHE_LLC, /* also used for snoopable memory on non-LLC */
	I915_CACHE_L3_LLC, /* gen7+, L3 sits between the domain specifc
			      caches, eg sampler/render caches, and the
			      large Last-Level-Cache. LLC is coherent with
			      the CPU, but L3 is only visible to the GPU. */
	I915_CACHE_WT, /* hsw:gt3e WriteThrough for scanouts */
};
 
struct i915_ctx_hang_stats {
	/* This context had batch pending when hang was declared */
	unsigned batch_pending;
 
	/* This context had batch active when hang was declared */
	unsigned batch_active;
 
	/* Time when this context was last blamed for a GPU reset */
	unsigned long guilty_ts;
 
	/* If the contexts causes a second GPU hang within this time,
	 * it is permanently banned from submitting any more work.
	 */
	unsigned long ban_period_seconds;
 
	/* This context is banned to submit more work */
	bool banned;
};
 
/* This must match up with the value previously used for execbuf2.rsvd1. */
#define DEFAULT_CONTEXT_HANDLE 0
 
#define CONTEXT_NO_ZEROMAP (1<<0)
/**
 * struct intel_context - as the name implies, represents a context.
 * @ref: reference count.
 * @user_handle: userspace tracking identity for this context.
 * @remap_slice: l3 row remapping information.
 * @flags: context specific flags:
 *         CONTEXT_NO_ZEROMAP: do not allow mapping things to page 0.
 * @file_priv: filp associated with this context (NULL for global default
 *	       context).
 * @hang_stats: information about the role of this context in possible GPU
 *		hangs.
 * @ppgtt: virtual memory space used by this context.
 * @legacy_hw_ctx: render context backing object and whether it is correctly
 *                initialized (legacy ring submission mechanism only).
 * @link: link in the global list of contexts.
 *
 * Contexts are memory images used by the hardware to store copies of their
 * internal state.
 */
struct intel_context {
	struct kref ref;
	int user_handle;
	uint8_t remap_slice;
	struct drm_i915_private *i915;
	int flags;
	struct drm_i915_file_private *file_priv;
	struct i915_ctx_hang_stats hang_stats;
	struct i915_hw_ppgtt *ppgtt;
 
	/* Legacy ring buffer submission */
	struct {
		struct drm_i915_gem_object *rcs_state;
		bool initialized;
	} legacy_hw_ctx;
 
	/* Execlists */
	struct {
		struct drm_i915_gem_object *state;
		struct intel_ringbuffer *ringbuf;
		int pin_count;
	} engine[I915_NUM_RINGS];
 
	struct list_head link;
};
 
enum fb_op_origin {
	ORIGIN_GTT,
	ORIGIN_CPU,
	ORIGIN_CS,
	ORIGIN_FLIP,
	ORIGIN_DIRTYFB,
};
 
struct i915_fbc {
	/* This is always the inner lock when overlapping with struct_mutex and
	 * it's the outer lock when overlapping with stolen_lock. */
	struct mutex lock;
 
	unsigned threshold;
	unsigned int fb_id;
	unsigned int possible_framebuffer_bits;
	unsigned int busy_bits;
	struct intel_crtc *crtc;
	int y;
 
	struct drm_mm_node compressed_fb;
	struct drm_mm_node *compressed_llb;
 
	bool false_color;
 
 
 
	bool enabled;
	bool active;
 
	struct intel_fbc_work {
		bool scheduled;
		struct work_struct work;
		struct drm_framebuffer *fb;
		unsigned long enable_jiffies;
	} work;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
	const char *no_fbc_reason;
 
	bool (*is_active)(struct drm_i915_private *dev_priv);
	void (*activate)(struct intel_crtc *crtc);
	void (*deactivate)(struct drm_i915_private *dev_priv);
};
 
/**
 * HIGH_RR is the highest eDP panel refresh rate read from EDID
 * LOW_RR is the lowest eDP panel refresh rate found from EDID
 * parsing for same resolution.
 */
enum drrs_refresh_rate_type {
	DRRS_HIGH_RR,
	DRRS_LOW_RR,
	DRRS_MAX_RR, /* RR count */
};
 
enum drrs_support_type {
	DRRS_NOT_SUPPORTED = 0,
	STATIC_DRRS_SUPPORT = 1,
	SEAMLESS_DRRS_SUPPORT = 2
};
 
struct intel_dp;
struct i915_drrs {
	struct mutex mutex;
	struct delayed_work work;
	struct intel_dp *dp;
	unsigned busy_frontbuffer_bits;
	enum drrs_refresh_rate_type refresh_rate_type;
	enum drrs_support_type type;
};
 
struct i915_psr {
	struct mutex lock;
	bool sink_support;
	bool source_ok;
	struct intel_dp *enabled;
	bool active;
	struct delayed_work work;
	unsigned busy_frontbuffer_bits;
	bool psr2_support;
	bool aux_frame_sync;
};
 
enum intel_pch {
	PCH_NONE = 0,	/* No PCH present */
	PCH_IBX,	/* Ibexpeak PCH */
	PCH_CPT,	/* Cougarpoint PCH */
	PCH_LPT,	/* Lynxpoint PCH */
	PCH_SPT,        /* Sunrisepoint PCH */
	PCH_NOP,
};
 
enum intel_sbi_destination {
	SBI_ICLK,
	SBI_MPHY,
};
 
#define QUIRK_PIPEA_FORCE (1<<0)
#define QUIRK_LVDS_SSC_DISABLE (1<<1)
#define QUIRK_INVERT_BRIGHTNESS (1<<2)
#define QUIRK_BACKLIGHT_PRESENT (1<<3)
#define QUIRK_PIPEB_FORCE (1<<4)
#define QUIRK_PIN_SWIZZLED_PAGES (1<<5)
 
struct intel_fbdev;
struct intel_fbc_work;
 
struct intel_gmbus {
	struct i2c_adapter adapter;
	u32 force_bit;
	u32 reg0;
	i915_reg_t gpio_reg;
	struct i2c_algo_bit_data bit_algo;
	struct drm_i915_private *dev_priv;
};
 
struct i915_suspend_saved_registers {
	u32 saveDSPARB;
	u32 saveLVDS;
	u32 savePP_ON_DELAYS;
	u32 savePP_OFF_DELAYS;
	u32 savePP_ON;
	u32 savePP_OFF;
	u32 savePP_CONTROL;
	u32 savePP_DIVISOR;
	u32 saveFBC_CONTROL;
	u32 saveCACHE_MODE_0;
	u32 saveMI_ARB_STATE;
	u32 saveSWF0[16];
	u32 saveSWF1[16];
	u32 saveSWF3[3];
	uint64_t saveFENCE[I915_MAX_NUM_FENCES];
	u32 savePCH_PORT_HOTPLUG;
	u16 saveGCDGMBUS;
};
 
struct vlv_s0ix_state {
	/* GAM */
	u32 wr_watermark;
	u32 gfx_prio_ctrl;
	u32 arb_mode;
	u32 gfx_pend_tlb0;
	u32 gfx_pend_tlb1;
	u32 lra_limits[GEN7_LRA_LIMITS_REG_NUM];
	u32 media_max_req_count;
	u32 gfx_max_req_count;
	u32 render_hwsp;
	u32 ecochk;
	u32 bsd_hwsp;
	u32 blt_hwsp;
	u32 tlb_rd_addr;
 
	/* MBC */
	u32 g3dctl;
	u32 gsckgctl;
	u32 mbctl;
 
	/* GCP */
	u32 ucgctl1;
	u32 ucgctl3;
	u32 rcgctl1;
	u32 rcgctl2;
	u32 rstctl;
	u32 misccpctl;
 
	/* GPM */
	u32 gfxpause;
	u32 rpdeuhwtc;
	u32 rpdeuc;
	u32 ecobus;
	u32 pwrdwnupctl;
	u32 rp_down_timeout;
	u32 rp_deucsw;
	u32 rcubmabdtmr;
	u32 rcedata;
	u32 spare2gh;
 
	/* Display 1 CZ domain */
	u32 gt_imr;
	u32 gt_ier;
	u32 pm_imr;
	u32 pm_ier;
	u32 gt_scratch[GEN7_GT_SCRATCH_REG_NUM];
 
	/* GT SA CZ domain */
	u32 tilectl;
	u32 gt_fifoctl;
	u32 gtlc_wake_ctrl;
	u32 gtlc_survive;
	u32 pmwgicz;
 
	/* Display 2 CZ domain */
	u32 gu_ctl0;
	u32 gu_ctl1;
	u32 pcbr;
	u32 clock_gate_dis2;
};
 
struct intel_rps_ei {
	u32 cz_clock;
	u32 render_c0;
	u32 media_c0;
};
 
struct intel_gen6_power_mgmt {
	/*
	 * work, interrupts_enabled and pm_iir are protected by
	 * dev_priv->irq_lock
	 */
	struct work_struct work;
	bool interrupts_enabled;
	u32 pm_iir;
 
	/* Frequencies are stored in potentially platform dependent multiples.
	 * In other words, *_freq needs to be multiplied by X to be interesting.
	 * Soft limits are those which are used for the dynamic reclocking done
	 * by the driver (raise frequencies under heavy loads, and lower for
	 * lighter loads). Hard limits are those imposed by the hardware.
	 *
	 * A distinction is made for overclocking, which is never enabled by
	 * default, and is considered to be above the hard limit if it's
	 * possible at all.
	 */
	u8 cur_freq;		/* Current frequency (cached, may not == HW) */
	u8 min_freq_softlimit;	/* Minimum frequency permitted by the driver */
	u8 max_freq_softlimit;	/* Max frequency permitted by the driver */
	u8 max_freq;		/* Maximum frequency, RP0 if not overclocking */
	u8 min_freq;		/* AKA RPn. Minimum frequency */
	u8 idle_freq;		/* Frequency to request when we are idle */
	u8 efficient_freq;	/* AKA RPe. Pre-determined balanced frequency */
	u8 rp1_freq;		/* "less than" RP0 power/freqency */
	u8 rp0_freq;		/* Non-overclocked max frequency. */
 
	u8 up_threshold; /* Current %busy required to uplock */
	u8 down_threshold; /* Current %busy required to downclock */
 
	int last_adj;
	enum { LOW_POWER, BETWEEN, HIGH_POWER } power;
 
	spinlock_t client_lock;
	struct list_head clients;
	bool client_boost;
 
	bool enabled;
	struct delayed_work delayed_resume_work;
	unsigned boosts;
 
	struct intel_rps_client semaphores, mmioflips;
 
	/* manual wa residency calculations */
	struct intel_rps_ei up_ei, down_ei;
 
	/*
	 * Protects RPS/RC6 register access and PCU communication.
	 * Must be taken after struct_mutex if nested. Note that
	 * this lock may be held for long periods of time when
	 * talking to hw - so only take it when talking to hw!
	 */
	struct mutex hw_lock;
};
 
/* defined intel_pm.c */
extern spinlock_t mchdev_lock;
 
struct intel_ilk_power_mgmt {
	u8 cur_delay;
	u8 min_delay;
	u8 max_delay;
	u8 fmax;
	u8 fstart;
 
	u64 last_count1;
	unsigned long last_time1;
	unsigned long chipset_power;
	u64 last_count2;
	u64 last_time2;
	unsigned long gfx_power;
	u8 corr;
 
	int c_m;
	int r_t;
};
 
struct drm_i915_private;
struct i915_power_well;
 
struct i915_power_well_ops {
	/*
	 * Synchronize the well's hw state to match the current sw state, for
	 * example enable/disable it based on the current refcount. Called
	 * during driver init and resume time, possibly after first calling
	 * the enable/disable handlers.
	 */
	void (*sync_hw)(struct drm_i915_private *dev_priv,
			struct i915_power_well *power_well);
	/*
	 * Enable the well and resources that depend on it (for example
	 * interrupts located on the well). Called after the 0->1 refcount
	 * transition.
	 */
	void (*enable)(struct drm_i915_private *dev_priv,
		       struct i915_power_well *power_well);
	/*
	 * Disable the well and resources that depend on it. Called after
	 * the 1->0 refcount transition.
	 */
	void (*disable)(struct drm_i915_private *dev_priv,
			struct i915_power_well *power_well);
	/* Returns the hw enabled state. */
	bool (*is_enabled)(struct drm_i915_private *dev_priv,
			   struct i915_power_well *power_well);
};
 
/* Power well structure for haswell */
struct i915_power_well {
	const char *name;
	bool always_on;
	/* power well enable/disable usage count */
	int count;
	/* cached hw enabled state */
	bool hw_enabled;
	unsigned long domains;
	unsigned long data;
	const struct i915_power_well_ops *ops;
};
 
struct i915_power_domains {
	/*
	 * Power wells needed for initialization at driver init and suspend
	 * time are on. They are kept on until after the first modeset.
	 */
	bool init_power_on;
	bool initializing;
	int power_well_count;
 
	struct mutex lock;
	int domain_use_count[POWER_DOMAIN_NUM];
	struct i915_power_well *power_wells;
};
 
#define MAX_L3_SLICES 2
struct intel_l3_parity {
	u32 *remap_info[MAX_L3_SLICES];
	struct work_struct error_work;
	int which_slice;
};
 
struct i915_gem_mm {
	/** Memory allocator for GTT stolen memory */
	struct drm_mm stolen;
	/** Protects the usage of the GTT stolen memory allocator. This is
	 * always the inner lock when overlapping with struct_mutex. */
	struct mutex stolen_lock;
 
	/** List of all objects in gtt_space. Used to restore gtt
	 * mappings on resume */
	struct list_head bound_list;
	/**
	 * List of objects which are not bound to the GTT (thus
	 * are idle and not used by the GPU) but still have
	 * (presumably uncached) pages still attached.
	 */
	struct list_head unbound_list;
 
	/** Usable portion of the GTT for GEM */
	unsigned long stolen_base; /* limited to low memory (32-bit) */
 
	/** PPGTT used for aliasing the PPGTT with the GTT */
	struct i915_hw_ppgtt *aliasing_ppgtt;
 
	struct notifier_block oom_notifier;
	/** LRU list of objects with fence regs on them. */
	struct list_head fence_list;
 
	/**
	 * We leave the user IRQ off as much as possible,
	 * but this means that requests will finish and never
	 * be retired once the system goes idle. Set a timer to
	 * fire periodically while the ring is running. When it
	 * fires, go retire requests.
	 */
	struct delayed_work retire_work;
 
	/**
	 * When we detect an idle GPU, we want to turn on
	 * powersaving features. So once we see that there
	 * are no more requests outstanding and no more
	 * arrive within a small period of time, we fire
	 * off the idle_work.
	 */
	struct delayed_work idle_work;
 
	/**
	 * Are we in a non-interruptible section of code like
	 * modesetting?
	 */
	bool interruptible;
 
	/**
	 * Is the GPU currently considered idle, or busy executing userspace
	 * requests?  Whilst idle, we attempt to power down the hardware and
	 * display clocks. In order to reduce the effect on performance, there
	 * is a slight delay before we do so.
	 */
	bool busy;
 
	/* the indicator for dispatch video commands on two BSD rings */
	int bsd_ring_dispatch_index;
 
	/** Bit 6 swizzling required for X tiling */
	uint32_t bit_6_swizzle_x;
	/** Bit 6 swizzling required for Y tiling */
	uint32_t bit_6_swizzle_y;
 
	/* accounting, useful for userland debugging */
	spinlock_t object_stat_lock;
	size_t object_memory;
	u32 object_count;
};
 
struct drm_i915_error_state_buf {
	struct drm_i915_private *i915;
	unsigned bytes;
	unsigned size;
	int err;
	u8 *buf;
	loff_t start;
	loff_t pos;
};
 
struct i915_error_state_file_priv {
	struct drm_device *dev;
	struct drm_i915_error_state *error;
};
 
struct i915_gpu_error {
	/* For hangcheck timer */
#define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */
#define DRM_I915_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD)
	/* Hang gpu twice in this window and your context gets banned */
#define DRM_I915_CTX_BAN_PERIOD DIV_ROUND_UP(8*DRM_I915_HANGCHECK_PERIOD, 1000)
 
	struct workqueue_struct *hangcheck_wq;
	struct delayed_work hangcheck_work;
 
	/* For reset and error_state handling. */
	spinlock_t lock;
	/* Protected by the above dev->gpu_error.lock. */
	struct drm_i915_error_state *first_error;
 
	unsigned long missed_irq_rings;
 
	/**
	 * State variable controlling the reset flow and count
	 *
	 * This is a counter which gets incremented when reset is triggered,
	 * and again when reset has been handled. So odd values (lowest bit set)
	 * means that reset is in progress and even values that
	 * (reset_counter >> 1):th reset was successfully completed.
	 *
	 * If reset is not completed succesfully, the I915_WEDGE bit is
	 * set meaning that hardware is terminally sour and there is no
	 * recovery. All waiters on the reset_queue will be woken when
	 * that happens.
	 *
	 * This counter is used by the wait_seqno code to notice that reset
	 * event happened and it needs to restart the entire ioctl (since most
	 * likely the seqno it waited for won't ever signal anytime soon).
	 *
	 * This is important for lock-free wait paths, where no contended lock
	 * naturally enforces the correct ordering between the bail-out of the
	 * waiter and the gpu reset work code.
	 */
	atomic_t reset_counter;
 
#define I915_RESET_IN_PROGRESS_FLAG	1
#define I915_WEDGED			(1 << 31)
 
	/**
	 * Waitqueue to signal when the reset has completed. Used by clients
	 * that wait for dev_priv->mm.wedged to settle.
	 */
	wait_queue_head_t reset_queue;
 
	/* Userspace knobs for gpu hang simulation;
	 * combines both a ring mask, and extra flags
	 */
	u32 stop_rings;
#define I915_STOP_RING_ALLOW_BAN       (1 << 31)
#define I915_STOP_RING_ALLOW_WARN      (1 << 30)
 
	/* For missed irq/seqno simulation. */
	unsigned int test_irq_rings;
 
	/* Used to prevent gem_check_wedged returning -EAGAIN during gpu reset   */
	bool reload_in_reset;
};
 
enum modeset_restore {
	MODESET_ON_LID_OPEN,
	MODESET_DONE,
	MODESET_SUSPENDED,
};
 
#define DP_AUX_A 0x40
#define DP_AUX_B 0x10
#define DP_AUX_C 0x20
#define DP_AUX_D 0x30
 
#define DDC_PIN_B  0x05
#define DDC_PIN_C  0x04
#define DDC_PIN_D  0x06
 
struct ddi_vbt_port_info {
	/*
	 * This is an index in the HDMI/DVI DDI buffer translation table.
	 * The special value HDMI_LEVEL_SHIFT_UNKNOWN means the VBT didn't
	 * populate this field.
	 */
#define HDMI_LEVEL_SHIFT_UNKNOWN	0xff
	uint8_t hdmi_level_shift;
 
	uint8_t supports_dvi:1;
	uint8_t supports_hdmi:1;
	uint8_t supports_dp:1;
 
	uint8_t alternate_aux_channel;
	uint8_t alternate_ddc_pin;
 
	uint8_t dp_boost_level;
	uint8_t hdmi_boost_level;
};
 
enum psr_lines_to_wait {
	PSR_0_LINES_TO_WAIT = 0,
	PSR_1_LINE_TO_WAIT,
	PSR_4_LINES_TO_WAIT,
	PSR_8_LINES_TO_WAIT
};
 
struct intel_vbt_data {
	struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
	struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
 
	/* Feature bits */
	unsigned int int_tv_support:1;
	unsigned int lvds_dither:1;
	unsigned int lvds_vbt:1;
	unsigned int int_crt_support:1;
	unsigned int lvds_use_ssc:1;
	unsigned int display_clock_mode:1;
	unsigned int fdi_rx_polarity_inverted:1;
	unsigned int has_mipi:1;
	int lvds_ssc_freq;
	unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
 
	enum drrs_support_type drrs_type;
 
	/* eDP */
	int edp_rate;
	int edp_lanes;
	int edp_preemphasis;
	int edp_vswing;
	bool edp_initialized;
	bool edp_support;
	int edp_bpp;
	struct edp_power_seq edp_pps;
 
	struct {
		bool full_link;
		bool require_aux_wakeup;
		int idle_frames;
		enum psr_lines_to_wait lines_to_wait;
		int tp1_wakeup_time;
		int tp2_tp3_wakeup_time;
	} psr;
 
	struct {
		u16 pwm_freq_hz;
		bool present;
		bool active_low_pwm;
		u8 min_brightness;	/* min_brightness/255 of max */
	} backlight;
 
	/* MIPI DSI */
	struct {
		u16 port;
		u16 panel_id;
		struct mipi_config *config;
		struct mipi_pps_data *pps;
		u8 seq_version;
		u32 size;
		u8 *data;
		u8 *sequence[MIPI_SEQ_MAX];
	} dsi;
 
	int crt_ddc_pin;
 
	int child_dev_num;
	union child_device_config *child_dev;
 
	struct ddi_vbt_port_info ddi_port_info[I915_MAX_PORTS];
};
 
enum intel_ddb_partitioning {
	INTEL_DDB_PART_1_2,
	INTEL_DDB_PART_5_6, /* IVB+ */
};
 
struct intel_wm_level {
	bool enable;
	uint32_t pri_val;
	uint32_t spr_val;
	uint32_t cur_val;
	uint32_t fbc_val;
};
 
struct ilk_wm_values {
	uint32_t wm_pipe[3];
	uint32_t wm_lp[3];
	uint32_t wm_lp_spr[3];
	uint32_t wm_linetime[3];
	bool enable_fbc_wm;
	enum intel_ddb_partitioning partitioning;
};
 
struct vlv_pipe_wm {
	uint16_t primary;
	uint16_t sprite[2];
	uint8_t cursor;
};
 
struct vlv_sr_wm {
	uint16_t plane;
	uint8_t cursor;
};
 
struct vlv_wm_values {
	struct vlv_pipe_wm pipe[3];
	struct vlv_sr_wm sr;
	struct {
		uint8_t cursor;
		uint8_t sprite[2];
		uint8_t primary;
	} ddl[3];
	uint8_t level;
	bool cxsr;
};
 
struct skl_ddb_entry {
	uint16_t start, end;	/* in number of blocks, 'end' is exclusive */
};
 
static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry)
{
	return entry->end - entry->start;
}
 
static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1,
				       const struct skl_ddb_entry *e2)
{
	if (e1->start == e2->start && e1->end == e2->end)
		return true;
 
	return false;
}
 
struct skl_ddb_allocation {
	struct skl_ddb_entry pipe[I915_MAX_PIPES];
	struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES]; /* packed/uv */
	struct skl_ddb_entry y_plane[I915_MAX_PIPES][I915_MAX_PLANES];
};
 
struct skl_wm_values {
	bool dirty[I915_MAX_PIPES];
	struct skl_ddb_allocation ddb;
	uint32_t wm_linetime[I915_MAX_PIPES];
	uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
	uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
};
 
struct skl_wm_level {
	bool plane_en[I915_MAX_PLANES];
	uint16_t plane_res_b[I915_MAX_PLANES];
	uint8_t plane_res_l[I915_MAX_PLANES];
};
 
/*
 * This struct helps tracking the state needed for runtime PM, which puts the
 * device in PCI D3 state. Notice that when this happens, nothing on the
 * graphics device works, even register access, so we don't get interrupts nor
 * anything else.
 *
 * Every piece of our code that needs to actually touch the hardware needs to
 * either call intel_runtime_pm_get or call intel_display_power_get with the
 * appropriate power domain.
 *
 * Our driver uses the autosuspend delay feature, which means we'll only really
 * suspend if we stay with zero refcount for a certain amount of time. The
 * default value is currently very conservative (see intel_runtime_pm_enable), but
 * it can be changed with the standard runtime PM files from sysfs.
 *
 * The irqs_disabled variable becomes true exactly after we disable the IRQs and
 * goes back to false exactly before we reenable the IRQs. We use this variable
 * to check if someone is trying to enable/disable IRQs while they're supposed
 * to be disabled. This shouldn't happen and we'll print some error messages in
 * case it happens.
 *
 * For more, read the Documentation/power/runtime_pm.txt.
 */
struct i915_runtime_pm {
	atomic_t wakeref_count;
	atomic_t atomic_seq;
	bool suspended;
	bool irqs_enabled;
};
 
enum intel_pipe_crc_source {
	INTEL_PIPE_CRC_SOURCE_NONE,
	INTEL_PIPE_CRC_SOURCE_PLANE1,
	INTEL_PIPE_CRC_SOURCE_PLANE2,
	INTEL_PIPE_CRC_SOURCE_PF,
	INTEL_PIPE_CRC_SOURCE_PIPE,
	/* TV/DP on pre-gen5/vlv can't use the pipe source. */
	INTEL_PIPE_CRC_SOURCE_TV,
	INTEL_PIPE_CRC_SOURCE_DP_B,
	INTEL_PIPE_CRC_SOURCE_DP_C,
	INTEL_PIPE_CRC_SOURCE_DP_D,
	INTEL_PIPE_CRC_SOURCE_AUTO,
	INTEL_PIPE_CRC_SOURCE_MAX,
};
 
struct intel_pipe_crc_entry {
	uint32_t frame;
	uint32_t crc[5];
};
 
#define INTEL_PIPE_CRC_ENTRIES_NR	128
struct intel_pipe_crc {
	spinlock_t lock;
	bool opened;		/* exclusive access to the result file */
	struct intel_pipe_crc_entry *entries;
	enum intel_pipe_crc_source source;
	int head, tail;
	wait_queue_head_t wq;
};
 
struct i915_frontbuffer_tracking {
	struct mutex lock;
 
	/*
	 * Tracking bits for delayed frontbuffer flushing du to gpu activity or
	 * scheduled flips.
	 */
	unsigned busy_bits;
	unsigned flip_bits;
};
 
struct i915_wa_reg {
	i915_reg_t addr;
	u32 value;
	/* bitmask representing WA bits */
	u32 mask;
};
 
#define I915_MAX_WA_REGS 16
 
struct i915_workarounds {
	struct i915_wa_reg reg[I915_MAX_WA_REGS];
	u32 count;
};
 
struct i915_virtual_gpu {
	bool active;
};
 
struct i915_execbuffer_params {
	struct drm_device               *dev;
	struct drm_file                 *file;
	uint32_t                        dispatch_flags;
	uint32_t                        args_batch_start_offset;
	uint64_t                        batch_obj_vm_offset;
	struct intel_engine_cs          *ring;
	struct drm_i915_gem_object      *batch_obj;
	struct intel_context            *ctx;
	struct drm_i915_gem_request     *request;
};
 
/* used in computing the new watermarks state */
struct intel_wm_config {
	unsigned int num_pipes_active;
	bool sprites_enabled;
	bool sprites_scaled;
};
 
struct drm_i915_private {
	struct drm_device *dev;
	struct kmem_cache *objects;
	struct kmem_cache *vmas;
	struct kmem_cache *requests;
 
	const struct intel_device_info info;
 
	int relative_constants_mode;
 
	void __iomem *regs;
 
	struct intel_uncore uncore;
 
	struct i915_virtual_gpu vgpu;
 
	struct intel_guc guc;
 
	struct intel_csr csr;
 
 
 
 
	struct intel_gmbus gmbus[GMBUS_NUM_PINS];
 
	/** gmbus_mutex protects against concurrent usage of the single hw gmbus
	 * controller on different i2c buses. */
	struct mutex gmbus_mutex;
 
	/**
	 * Base address of the gmbus and gpio block.
	 */
	uint32_t gpio_mmio_base;
 
	/* MMIO base address for MIPI regs */
	uint32_t mipi_mmio_base;
 
	uint32_t psr_mmio_base;
 
	wait_queue_head_t gmbus_wait_queue;
 
	struct pci_dev *bridge_dev;
	struct intel_engine_cs ring[I915_NUM_RINGS];
	struct drm_i915_gem_object *semaphore_obj;
	uint32_t last_seqno, next_seqno;
 
	struct drm_dma_handle *status_page_dmah;
	struct resource mch_res;
 
	/* protects the irq masks */
	spinlock_t irq_lock;
 
	/* protects the mmio flip data */
	spinlock_t mmio_flip_lock;
 
	bool display_irqs_enabled;
 
 
	/* Sideband mailbox protection */
	struct mutex sb_lock;
 
	/** Cached value of IMR to avoid reads in updating the bitfield */
	union {
		u32 irq_mask;
		u32 de_irq_mask[I915_MAX_PIPES];
	};
	u32 gt_irq_mask;
	u32 pm_irq_mask;
	u32 pm_rps_events;
	u32 pipestat_irq_mask[I915_MAX_PIPES];
 
	struct i915_hotplug hotplug;
	struct i915_fbc fbc;
	struct i915_drrs drrs;
	struct intel_opregion opregion;
	struct intel_vbt_data vbt;
 
	bool preserve_bios_swizzle;
 
	/* overlay */
	struct intel_overlay *overlay;
 
	/* backlight registers and fields in struct intel_panel */
	struct mutex backlight_lock;
 
	/* LVDS info */
	bool no_aux_handshake;
 
	/* protects panel power sequencer state */
	struct mutex pps_mutex;
 
	struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
	int num_fence_regs; /* 8 on pre-965, 16 otherwise */
 
	unsigned int fsb_freq, mem_freq, is_ddr3;
	unsigned int skl_boot_cdclk;
	unsigned int cdclk_freq, max_cdclk_freq;
	unsigned int max_dotclk_freq;
	unsigned int hpll_freq;
	unsigned int czclk_freq;
 
	/**
	 * wq - Driver workqueue for GEM.
	 *
	 * NOTE: Work items scheduled here are not allowed to grab any modeset
	 * locks, for otherwise the flushing done in the pageflip code will
	 * result in deadlocks.
	 */
	struct workqueue_struct *wq;
 
	/* Display functions */
	struct drm_i915_display_funcs display;
 
	/* PCH chipset type */
	enum intel_pch pch_type;
	unsigned short pch_id;
 
	unsigned long quirks;
 
	enum modeset_restore modeset_restore;
	struct mutex modeset_restore_lock;
 
	struct list_head vm_list; /* Global list of all address spaces */
	struct i915_gtt gtt; /* VM representing the global address space */
 
	struct i915_gem_mm mm;
	DECLARE_HASHTABLE(mm_structs, 7);
	struct mutex mm_lock;
 
	/* Kernel Modesetting */
 
	struct sdvo_device_mapping sdvo_mappings[2];
 
	struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
	struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
	wait_queue_head_t pending_flip_queue;
 
#ifdef CONFIG_DEBUG_FS
	struct intel_pipe_crc pipe_crc[I915_MAX_PIPES];
#endif
 
	int num_shared_dpll;
	struct intel_shared_dpll shared_dplls[I915_NUM_PLLS];
	int dpio_phy_iosf_port[I915_NUM_PHYS_VLV];
 
	struct i915_workarounds workarounds;
 
	/* Reclocking support */
	bool render_reclock_avail;
 
	struct i915_frontbuffer_tracking fb_tracking;
 
	u16 orig_clock;
 
	bool mchbar_need_disable;
 
	struct intel_l3_parity l3_parity;
 
	/* Cannot be determined by PCIID. You must always read a register. */
	size_t ellc_size;
 
	/* gen6+ rps state */
	struct intel_gen6_power_mgmt rps;
 
	/* ilk-only ips/rps state. Everything in here is protected by the global
	 * mchdev_lock in intel_pm.c */
	struct intel_ilk_power_mgmt ips;
 
	struct i915_power_domains power_domains;
 
	struct i915_psr psr;
 
	struct i915_gpu_error gpu_error;
 
	struct drm_i915_gem_object *vlv_pctx;
 
#ifdef CONFIG_DRM_FBDEV_EMULATION
	/* list of fbdev register on this device */
	struct intel_fbdev *fbdev;
	struct work_struct fbdev_suspend_work;
#endif
 
	struct drm_property *broadcast_rgb_property;
	struct drm_property *force_audio_property;
 
	/* hda/i915 audio component */
	struct i915_audio_component *audio_component;
	bool audio_component_registered;
	/**
	 * av_mutex - mutex for audio/video sync
	 *
	 */
	struct mutex av_mutex;
 
	uint32_t hw_context_size;
	struct list_head context_list;
 
	u32 fdi_rx_config;
 
	u32 chv_phy_control;
 
	u32 suspend_count;
	bool suspended_to_idle;
	struct i915_suspend_saved_registers regfile;
	struct vlv_s0ix_state vlv_s0ix_state;
 
	struct {
		/*
		 * Raw watermark latency values:
		 * in 0.1us units for WM0,
		 * in 0.5us units for WM1+.
		 */
		/* primary */
		uint16_t pri_latency[5];
		/* sprite */
		uint16_t spr_latency[5];
		/* cursor */
		uint16_t cur_latency[5];
		/*
		 * Raw watermark memory latency values
		 * for SKL for all 8 levels
		 * in 1us units.
		 */
		uint16_t skl_latency[8];
 
		/* Committed wm config */
		struct intel_wm_config config;
 
		/*
		 * The skl_wm_values structure is a bit too big for stack
		 * allocation, so we keep the staging struct where we store
		 * intermediate results here instead.
		 */
		struct skl_wm_values skl_results;
 
		/* current hardware state */
		union {
			struct ilk_wm_values hw;
			struct skl_wm_values skl_hw;
			struct vlv_wm_values vlv;
		};
 
		uint8_t max_level;
	} wm;
 
	struct i915_runtime_pm pm;
 
	/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
	struct {
		int (*execbuf_submit)(struct i915_execbuffer_params *params,
				      struct drm_i915_gem_execbuffer2 *args,
				      struct list_head *vmas);
		int (*init_rings)(struct drm_device *dev);
		void (*cleanup_ring)(struct intel_engine_cs *ring);
		void (*stop_ring)(struct intel_engine_cs *ring);
	} gt;
 
	bool edp_low_vswing;
 
	/* perform PHY state sanity checks? */
	bool chv_phy_assert[2];
 
	struct intel_encoder *dig_port_map[I915_MAX_PORTS];
 
	/*
	 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
	 * will be rejected. Instead look for a better place.
	 */
};
 
static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
{
	return dev->dev_private;
}
 
static inline struct drm_i915_private *dev_to_i915(struct device *dev)
{
	return to_i915(dev_get_drvdata(dev));
}
 
static inline struct drm_i915_private *guc_to_i915(struct intel_guc *guc)
{
	return container_of(guc, struct drm_i915_private, guc);
}
 
/* Iterate over initialised rings */
#define for_each_ring(ring__, dev_priv__, i__) \
	for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
		for_each_if ((((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__))))
 
enum hdmi_force_audio {
	HDMI_AUDIO_OFF_DVI = -2,	/* no aux data for HDMI-DVI converter */
	HDMI_AUDIO_OFF,			/* force turn off HDMI audio */
	HDMI_AUDIO_AUTO,		/* trust EDID */
	HDMI_AUDIO_ON,			/* force turn on HDMI audio */
};
 
#define I915_GTT_OFFSET_NONE ((u32)-1)
 
struct drm_i915_gem_object_ops {
	unsigned int flags;
#define I915_GEM_OBJECT_HAS_STRUCT_PAGE 0x1
 
	/* Interface between the GEM object and its backing storage.
	 * get_pages() is called once prior to the use of the associated set
	 * of pages before to binding them into the GTT, and put_pages() is
	 * called after we no longer need them. As we expect there to be
	 * associated cost with migrating pages between the backing storage
	 * and making them available for the GPU (e.g. clflush), we may hold
	 * onto the pages after they are no longer referenced by the GPU
	 * in case they may be used again shortly (for example migrating the
	 * pages to a different memory domain within the GTT). put_pages()
	 * will therefore most likely be called when the object itself is
	 * being released or under memory pressure (where we attempt to
	 * reap pages for the shrinker).
	 */
	int (*get_pages)(struct drm_i915_gem_object *);
	void (*put_pages)(struct drm_i915_gem_object *);
 
	int (*dmabuf_export)(struct drm_i915_gem_object *);
	void (*release)(struct drm_i915_gem_object *);
};
 
/*
 * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is
 * considered to be the frontbuffer for the given plane interface-wise. This
 * doesn't mean that the hw necessarily already scans it out, but that any
 * rendering (by the cpu or gpu) will land in the frontbuffer eventually.
 *
 * We have one bit per pipe and per scanout plane type.
 */
#define INTEL_MAX_SPRITE_BITS_PER_PIPE 5
#define INTEL_FRONTBUFFER_BITS_PER_PIPE 8
#define INTEL_FRONTBUFFER_BITS \
	(INTEL_FRONTBUFFER_BITS_PER_PIPE * I915_MAX_PIPES)
#define INTEL_FRONTBUFFER_PRIMARY(pipe) \
	(1 << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
#define INTEL_FRONTBUFFER_CURSOR(pipe) \
	(1 << (1 + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
#define INTEL_FRONTBUFFER_SPRITE(pipe, plane) \
	(1 << (2 + plane + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
#define INTEL_FRONTBUFFER_OVERLAY(pipe) \
	(1 << (2 + INTEL_MAX_SPRITE_BITS_PER_PIPE + (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe))))
#define INTEL_FRONTBUFFER_ALL_MASK(pipe) \
	(0xff << (INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)))
 
struct drm_i915_gem_object {
	struct drm_gem_object base;
 
	const struct drm_i915_gem_object_ops *ops;
 
	/** List of VMAs backed by this object */
	struct list_head vma_list;
 
	/** Stolen memory for this object, instead of being backed by shmem. */
	struct drm_mm_node *stolen;
	struct list_head global_list;
 
	struct list_head ring_list[I915_NUM_RINGS];
	/** Used in execbuf to temporarily hold a ref */
	struct list_head obj_exec_link;
 
	struct list_head batch_pool_link;
 
	/**
	 * This is set if the object is on the active lists (has pending
	 * rendering and so a non-zero seqno), and is not set if it i s on
	 * inactive (ready to be unbound) list.
	 */
	unsigned int active:I915_NUM_RINGS;
 
	/**
	 * This is set if the object has been written to since last bound
	 * to the GTT
	 */
	unsigned int dirty:1;
 
	/**
	 * Fence register bits (if any) for this object.  Will be set
	 * as needed when mapped into the GTT.
	 * Protected by dev->struct_mutex.
	 */
	signed int fence_reg:I915_MAX_NUM_FENCE_BITS;
 
	/**
	 * Advice: are the backing pages purgeable?
	 */
	unsigned int madv:2;
 
	/**
	 * Current tiling mode for the object.
	 */
	unsigned int tiling_mode:2;
	/**
	 * Whether the tiling parameters for the currently associated fence
	 * register have changed. Note that for the purposes of tracking
	 * tiling changes we also treat the unfenced register, the register
	 * slot that the object occupies whilst it executes a fenced
	 * command (such as BLT on gen2/3), as a "fence".
	 */
	unsigned int fence_dirty:1;
 
	/**
	 * Is the object at the current location in the gtt mappable and
	 * fenceable? Used to avoid costly recalculations.
	 */
	unsigned int map_and_fenceable:1;
 
	/**
	 * Whether the current gtt mapping needs to be mappable (and isn't just
	 * mappable by accident). Track pin and fault separate for a more
	 * accurate mappable working set.
	 */
	unsigned int fault_mappable:1;
 
	/*
	 * Is the object to be mapped as read-only to the GPU
	 * Only honoured if hardware has relevant pte bit
	 */
	unsigned long gt_ro:1;
	unsigned int cache_level:3;
	unsigned int cache_dirty:1;
 
	unsigned int frontbuffer_bits:INTEL_FRONTBUFFER_BITS;
 
	unsigned int pin_display;
 
	struct sg_table *pages;
	int pages_pin_count;
	struct get_page {
		struct scatterlist *sg;
		int last;
	} get_page;
 
	/* prime dma-buf support */
	void *dma_buf_vmapping;
	int vmapping_count;
 
	/** Breadcrumb of last rendering to the buffer.
	 * There can only be one writer, but we allow for multiple readers.
	 * If there is a writer that necessarily implies that all other
	 * read requests are complete - but we may only be lazily clearing
	 * the read requests. A read request is naturally the most recent
	 * request on a ring, so we may have two different write and read
	 * requests on one ring where the write request is older than the
	 * read request. This allows for the CPU to read from an active
	 * buffer by only waiting for the write to complete.
	 * */
	struct drm_i915_gem_request *last_read_req[I915_NUM_RINGS];
	struct drm_i915_gem_request *last_write_req;
	/** Breadcrumb of last fenced GPU access to the buffer. */
	struct drm_i915_gem_request *last_fenced_req;
 
	/** Current tiling stride for the object, if it's tiled. */
	uint32_t stride;
 
	/** References from framebuffers, locks out tiling changes. */
	unsigned long framebuffer_references;
 
	/** Record of address bit 17 of each page at last unbind. */
	unsigned long *bit_17;
 
	union {
		/** for phy allocated objects */
		struct drm_dma_handle *phys_handle;
 
		struct i915_gem_userptr {
			uintptr_t ptr;
			unsigned read_only :1;
			unsigned workers :4;
#define I915_GEM_USERPTR_MAX_WORKERS 15
 
			struct i915_mm_struct *mm;
			struct i915_mmu_object *mmu_object;
			struct work_struct *work;
		} userptr;
	};
 
 
};
#define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
 
void i915_gem_track_fb(struct drm_i915_gem_object *old,
		       struct drm_i915_gem_object *new,
		       unsigned frontbuffer_bits);
 
/**
 * Request queue structure.
 *
 * The request queue allows us to note sequence numbers that have been emitted
 * and may be associated with active buffers to be retired.
 *
 * By keeping this list, we can avoid having to do questionable sequence
 * number comparisons on buffer last_read|write_seqno. It also allows an
 * emission time to be associated with the request for tracking how far ahead
 * of the GPU the submission is.
 *
 * The requests are reference counted, so upon creation they should have an
 * initial reference taken using kref_init
 */
struct drm_i915_gem_request {
	struct kref ref;
 
	/** On Which ring this request was generated */
	struct drm_i915_private *i915;
	struct intel_engine_cs *ring;
 
	 /** GEM sequence number associated with the previous request,
	  * when the HWS breadcrumb is equal to this the GPU is processing
	  * this request.
	  */
	u32 previous_seqno;
 
	 /** GEM sequence number associated with this request,
	  * when the HWS breadcrumb is equal or greater than this the GPU
	  * has finished processing this request.
	  */
	u32 seqno;
 
	/** Position in the ringbuffer of the start of the request */
	u32 head;
 
	/**
	 * Position in the ringbuffer of the start of the postfix.
	 * This is required to calculate the maximum available ringbuffer
	 * space without overwriting the postfix.
	 */
	 u32 postfix;
 
	/** Position in the ringbuffer of the end of the whole request */
	u32 tail;
 
	/**
	 * Context and ring buffer related to this request
	 * Contexts are refcounted, so when this request is associated with a
	 * context, we must increment the context's refcount, to guarantee that
	 * it persists while any request is linked to it. Requests themselves
	 * are also refcounted, so the request will only be freed when the last
	 * reference to it is dismissed, and the code in
	 * i915_gem_request_free() will then decrement the refcount on the
	 * context.
	 */
	struct intel_context *ctx;
	struct intel_ringbuffer *ringbuf;
 
	/** Batch buffer related to this request if any (used for
	    error state dump only) */
	struct drm_i915_gem_object *batch_obj;
 
	/** Time at which this request was emitted, in jiffies. */
	unsigned long emitted_jiffies;
 
	/** global list entry for this request */
	struct list_head list;
 
	struct drm_i915_file_private *file_priv;
	/** file_priv list entry for this request */
	struct list_head client_list;
 
	/** process identifier submitting this request */
	struct pid *pid;
 
	/**
	 * The ELSP only accepts two elements at a time, so we queue
	 * context/tail pairs on a given queue (ring->execlist_queue) until the
	 * hardware is available. The queue serves a double purpose: we also use
	 * it to keep track of the up to 2 contexts currently in the hardware
	 * (usually one in execution and the other queued up by the GPU): We
	 * only remove elements from the head of the queue when the hardware
	 * informs us that an element has been completed.
	 *
	 * All accesses to the queue are mediated by a spinlock
	 * (ring->execlist_lock).
	 */
 
	/** Execlist link in the submission queue.*/
	struct list_head execlist_link;
 
	/** Execlists no. of times this request has been sent to the ELSP */
	int elsp_submitted;
 
};
 
int i915_gem_request_alloc(struct intel_engine_cs *ring,
			   struct intel_context *ctx,
			   struct drm_i915_gem_request **req_out);
void i915_gem_request_cancel(struct drm_i915_gem_request *req);
void i915_gem_request_free(struct kref *req_ref);
int i915_gem_request_add_to_client(struct drm_i915_gem_request *req,
				   struct drm_file *file);
 
static inline uint32_t
i915_gem_request_get_seqno(struct drm_i915_gem_request *req)
{
	return req ? req->seqno : 0;
}
 
static inline struct intel_engine_cs *
i915_gem_request_get_ring(struct drm_i915_gem_request *req)
{
	return req ? req->ring : NULL;
}
 
static inline struct drm_i915_gem_request *
i915_gem_request_reference(struct drm_i915_gem_request *req)
{
	if (req)
		kref_get(&req->ref);
	return req;
}
 
static inline void
i915_gem_request_unreference(struct drm_i915_gem_request *req)
{
	WARN_ON(!mutex_is_locked(&req->ring->dev->struct_mutex));
	kref_put(&req->ref, i915_gem_request_free);
}
 
static inline void
i915_gem_request_unreference__unlocked(struct drm_i915_gem_request *req)
{
	struct drm_device *dev;
 
	if (!req)
		return;
 
	dev = req->ring->dev;
	if (kref_put_mutex(&req->ref, i915_gem_request_free, &dev->struct_mutex))
		mutex_unlock(&dev->struct_mutex);
}
 
static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst,
					   struct drm_i915_gem_request *src)
{
	if (src)
		i915_gem_request_reference(src);
 
	if (*pdst)
		i915_gem_request_unreference(*pdst);
 
	*pdst = src;
}
 
/*
 * XXX: i915_gem_request_completed should be here but currently needs the
 * definition of i915_seqno_passed() which is below. It will be moved in
 * a later patch when the call to i915_seqno_passed() is obsoleted...
 */
 
/*
 * A command that requires special handling by the command parser.
 */
struct drm_i915_cmd_descriptor {
	/*
	 * Flags describing how the command parser processes the command.
	 *
	 * CMD_DESC_FIXED: The command has a fixed length if this is set,
	 *                 a length mask if not set
	 * CMD_DESC_SKIP: The command is allowed but does not follow the
	 *                standard length encoding for the opcode range in
	 *                which it falls
	 * CMD_DESC_REJECT: The command is never allowed
	 * CMD_DESC_REGISTER: The command should be checked against the
	 *                    register whitelist for the appropriate ring
	 * CMD_DESC_MASTER: The command is allowed if the submitting process
	 *                  is the DRM master
	 */
	u32 flags;
#define CMD_DESC_FIXED    (1<<0)
#define CMD_DESC_SKIP     (1<<1)
#define CMD_DESC_REJECT   (1<<2)
#define CMD_DESC_REGISTER (1<<3)
#define CMD_DESC_BITMASK  (1<<4)
#define CMD_DESC_MASTER   (1<<5)
 
	/*
	 * The command's unique identification bits and the bitmask to get them.
	 * This isn't strictly the opcode field as defined in the spec and may
	 * also include type, subtype, and/or subop fields.
	 */
	struct {
		u32 value;
		u32 mask;
	} cmd;
 
	/*
	 * The command's length. The command is either fixed length (i.e. does
	 * not include a length field) or has a length field mask. The flag
	 * CMD_DESC_FIXED indicates a fixed length. Otherwise, the command has
	 * a length mask. All command entries in a command table must include
	 * length information.
	 */
	union {
		u32 fixed;
		u32 mask;
	} length;
 
	/*
	 * Describes where to find a register address in the command to check
	 * against the ring's register whitelist. Only valid if flags has the
	 * CMD_DESC_REGISTER bit set.
	 *
	 * A non-zero step value implies that the command may access multiple
	 * registers in sequence (e.g. LRI), in that case step gives the
	 * distance in dwords between individual offset fields.
	 */
	struct {
		u32 offset;
		u32 mask;
		u32 step;
	} reg;
 
#define MAX_CMD_DESC_BITMASKS 3
	/*
	 * Describes command checks where a particular dword is masked and
	 * compared against an expected value. If the command does not match
	 * the expected value, the parser rejects it. Only valid if flags has
	 * the CMD_DESC_BITMASK bit set. Only entries where mask is non-zero
	 * are valid.
	 *
	 * If the check specifies a non-zero condition_mask then the parser
	 * only performs the check when the bits specified by condition_mask
	 * are non-zero.
	 */
	struct {
		u32 offset;
		u32 mask;
		u32 expected;
		u32 condition_offset;
		u32 condition_mask;
	} bits[MAX_CMD_DESC_BITMASKS];
};
 
/*
 * A table of commands requiring special handling by the command parser.
 *
 * Each ring has an array of tables. Each table consists of an array of command
 * descriptors, which must be sorted with command opcodes in ascending order.
 */
struct drm_i915_cmd_table {
	const struct drm_i915_cmd_descriptor *table;
	int count;
};
 
/* Note that the (struct drm_i915_private *) cast is just to shut up gcc. */
#define __I915__(p) ({ \
	struct drm_i915_private *__p; \
	if (__builtin_types_compatible_p(typeof(*p), struct drm_i915_private)) \
		__p = (struct drm_i915_private *)p; \
	else if (__builtin_types_compatible_p(typeof(*p), struct drm_device)) \
		__p = to_i915((struct drm_device *)p); \
	else \
		BUILD_BUG(); \
	__p; \
})
#define INTEL_INFO(p) 	(&__I915__(p)->info)
#define INTEL_DEVID(p)	(INTEL_INFO(p)->device_id)
#define INTEL_REVID(p)	(__I915__(p)->dev->pdev->revision)
 
#define REVID_FOREVER		0xff
/*
 * Return true if revision is in range [since,until] inclusive.
 *
 * Use 0 for open-ended since, and REVID_FOREVER for open-ended until.
 */
#define IS_REVID(p, since, until) \
	(INTEL_REVID(p) >= (since) && INTEL_REVID(p) <= (until))
 
#define IS_I830(dev)		(INTEL_DEVID(dev) == 0x3577)
#define IS_845G(dev)		(INTEL_DEVID(dev) == 0x2562)
#define IS_I85X(dev)		(INTEL_INFO(dev)->is_i85x)
#define IS_I865G(dev)		(INTEL_DEVID(dev) == 0x2572)
#define IS_I915G(dev)		(INTEL_INFO(dev)->is_i915g)
#define IS_I915GM(dev)		(INTEL_DEVID(dev) == 0x2592)
#define IS_I945G(dev)		(INTEL_DEVID(dev) == 0x2772)
#define IS_I945GM(dev)		(INTEL_INFO(dev)->is_i945gm)
#define IS_BROADWATER(dev)	(INTEL_INFO(dev)->is_broadwater)
#define IS_CRESTLINE(dev)	(INTEL_INFO(dev)->is_crestline)
#define IS_GM45(dev)		(INTEL_DEVID(dev) == 0x2A42)
#define IS_G4X(dev)		(INTEL_INFO(dev)->is_g4x)
#define IS_PINEVIEW_G(dev)	(INTEL_DEVID(dev) == 0xa001)
#define IS_PINEVIEW_M(dev)	(INTEL_DEVID(dev) == 0xa011)
#define IS_PINEVIEW(dev)	(INTEL_INFO(dev)->is_pineview)
#define IS_G33(dev)		(INTEL_INFO(dev)->is_g33)
#define IS_IRONLAKE_M(dev)	(INTEL_DEVID(dev) == 0x0046)
#define IS_IVYBRIDGE(dev)	(INTEL_INFO(dev)->is_ivybridge)
#define IS_IVB_GT1(dev)		(INTEL_DEVID(dev) == 0x0156 || \
				 INTEL_DEVID(dev) == 0x0152 || \
				 INTEL_DEVID(dev) == 0x015a)
#define IS_VALLEYVIEW(dev)	(INTEL_INFO(dev)->is_valleyview)
#define IS_CHERRYVIEW(dev)	(INTEL_INFO(dev)->is_cherryview)
#define IS_HASWELL(dev)	(INTEL_INFO(dev)->is_haswell)
#define IS_BROADWELL(dev)	(!INTEL_INFO(dev)->is_cherryview && IS_GEN8(dev))
#define IS_SKYLAKE(dev)	(INTEL_INFO(dev)->is_skylake)
#define IS_BROXTON(dev)		(INTEL_INFO(dev)->is_broxton)
#define IS_KABYLAKE(dev)	(INTEL_INFO(dev)->is_kabylake)
#define IS_MOBILE(dev)		(INTEL_INFO(dev)->is_mobile)
#define IS_HSW_EARLY_SDV(dev)	(IS_HASWELL(dev) && \
				 (INTEL_DEVID(dev) & 0xFF00) == 0x0C00)
#define IS_BDW_ULT(dev)		(IS_BROADWELL(dev) && \
				 ((INTEL_DEVID(dev) & 0xf) == 0x6 ||	\
				 (INTEL_DEVID(dev) & 0xf) == 0xb ||	\
				 (INTEL_DEVID(dev) & 0xf) == 0xe))
/* ULX machines are also considered ULT. */
#define IS_BDW_ULX(dev)		(IS_BROADWELL(dev) && \
				 (INTEL_DEVID(dev) & 0xf) == 0xe)
#define IS_BDW_GT3(dev)		(IS_BROADWELL(dev) && \
				 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
#define IS_HSW_ULT(dev)		(IS_HASWELL(dev) && \
				 (INTEL_DEVID(dev) & 0xFF00) == 0x0A00)
#define IS_HSW_GT3(dev)		(IS_HASWELL(dev) && \
				 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
/* ULX machines are also considered ULT. */
#define IS_HSW_ULX(dev)		(INTEL_DEVID(dev) == 0x0A0E || \
				 INTEL_DEVID(dev) == 0x0A1E)
#define IS_SKL_ULT(dev)		(INTEL_DEVID(dev) == 0x1906 || \
				 INTEL_DEVID(dev) == 0x1913 || \
				 INTEL_DEVID(dev) == 0x1916 || \
				 INTEL_DEVID(dev) == 0x1921 || \
				 INTEL_DEVID(dev) == 0x1926)
#define IS_SKL_ULX(dev)		(INTEL_DEVID(dev) == 0x190E || \
				 INTEL_DEVID(dev) == 0x1915 || \
				 INTEL_DEVID(dev) == 0x191E)
#define IS_KBL_ULT(dev)		(INTEL_DEVID(dev) == 0x5906 || \
				 INTEL_DEVID(dev) == 0x5913 || \
				 INTEL_DEVID(dev) == 0x5916 || \
				 INTEL_DEVID(dev) == 0x5921 || \
				 INTEL_DEVID(dev) == 0x5926)
#define IS_KBL_ULX(dev)		(INTEL_DEVID(dev) == 0x590E || \
				 INTEL_DEVID(dev) == 0x5915 || \
				 INTEL_DEVID(dev) == 0x591E)
#define IS_SKL_GT3(dev)		(IS_SKYLAKE(dev) && \
				 (INTEL_DEVID(dev) & 0x00F0) == 0x0020)
#define IS_SKL_GT4(dev)		(IS_SKYLAKE(dev) && \
				 (INTEL_DEVID(dev) & 0x00F0) == 0x0030)
 
#define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
 
#define SKL_REVID_A0		0x0
#define SKL_REVID_B0		0x1
#define SKL_REVID_C0		0x2
#define SKL_REVID_D0		0x3
#define SKL_REVID_E0		0x4
#define SKL_REVID_F0		0x5
 
#define IS_SKL_REVID(p, since, until) (IS_SKYLAKE(p) && IS_REVID(p, since, until))
 
#define BXT_REVID_A0		0x0
#define BXT_REVID_A1		0x1
#define BXT_REVID_B0		0x3
#define BXT_REVID_C0		0x9
 
#define IS_BXT_REVID(p, since, until) (IS_BROXTON(p) && IS_REVID(p, since, until))
 
/*
 * The genX designation typically refers to the render engine, so render
 * capability related checks should use IS_GEN, while display and other checks
 * have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
 * chips, etc.).
 */
#define IS_GEN2(dev)	(INTEL_INFO(dev)->gen == 2)
#define IS_GEN3(dev)	(INTEL_INFO(dev)->gen == 3)
#define IS_GEN4(dev)	(INTEL_INFO(dev)->gen == 4)
#define IS_GEN5(dev)	(INTEL_INFO(dev)->gen == 5)
#define IS_GEN6(dev)	(INTEL_INFO(dev)->gen == 6)
#define IS_GEN7(dev)	(INTEL_INFO(dev)->gen == 7)
#define IS_GEN8(dev)	(INTEL_INFO(dev)->gen == 8)
#define IS_GEN9(dev)	(INTEL_INFO(dev)->gen == 9)
 
#define RENDER_RING		(1<
#define BSD_RING		(1<
#define BLT_RING		(1<
#define VEBOX_RING		(1<
#define BSD2_RING		(1<
#define HAS_BSD(dev)		(INTEL_INFO(dev)->ring_mask & BSD_RING)
#define HAS_BSD2(dev)		(INTEL_INFO(dev)->ring_mask & BSD2_RING)
#define HAS_BLT(dev)		(INTEL_INFO(dev)->ring_mask & BLT_RING)
#define HAS_VEBOX(dev)		(INTEL_INFO(dev)->ring_mask & VEBOX_RING)
#define HAS_LLC(dev)		(INTEL_INFO(dev)->has_llc)
#define HAS_WT(dev)		((IS_HASWELL(dev) || IS_BROADWELL(dev)) && \
				 __I915__(dev)->ellc_size)
#define I915_NEED_GFX_HWS(dev)	(INTEL_INFO(dev)->need_gfx_hws)
 
#define HAS_HW_CONTEXTS(dev)	(INTEL_INFO(dev)->gen >= 6)
#define HAS_LOGICAL_RING_CONTEXTS(dev)	(INTEL_INFO(dev)->gen >= 8)
#define USES_PPGTT(dev)		(i915.enable_ppgtt)
#define USES_FULL_PPGTT(dev)	(i915.enable_ppgtt >= 2)
#define USES_FULL_48BIT_PPGTT(dev)	(i915.enable_ppgtt == 3)
 
#define HAS_OVERLAY(dev)		(INTEL_INFO(dev)->has_overlay)
#define OVERLAY_NEEDS_PHYSICAL(dev)	(INTEL_INFO(dev)->overlay_needs_physical)
 
/* Early gen2 have a totally busted CS tlb and require pinned batches. */
#define HAS_BROKEN_CS_TLB(dev)		(IS_I830(dev) || IS_845G(dev))
/*
 * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
 * even when in MSI mode. This results in spurious interrupt warnings if the
 * legacy irq no. is shared with another device. The kernel then disables that
 * interrupt source and so prevents the other device from working properly.
 */
#define HAS_AUX_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
#define HAS_GMBUS_IRQ(dev) (INTEL_INFO(dev)->gen >= 5)
 
/* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
 * rows, which changed the alignment requirements and fence programming.
 */
#define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \
						      IS_I915GM(dev)))
#define SUPPORTS_TV(dev)		(INTEL_INFO(dev)->supports_tv)
#define I915_HAS_HOTPLUG(dev)		 (INTEL_INFO(dev)->has_hotplug)
 
#define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2)
#define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr)
#define HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc)
 
#define HAS_IPS(dev)		(IS_HSW_ULT(dev) || IS_BROADWELL(dev))
 
#define HAS_DP_MST(dev)		(IS_HASWELL(dev) || IS_BROADWELL(dev) || \
				 INTEL_INFO(dev)->gen >= 9)
 
#define HAS_DDI(dev)		(INTEL_INFO(dev)->has_ddi)
#define HAS_FPGA_DBG_UNCLAIMED(dev)	(INTEL_INFO(dev)->has_fpga_dbg)
#define HAS_PSR(dev)		(IS_HASWELL(dev) || IS_BROADWELL(dev) || \
				 IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev) || \
				 IS_SKYLAKE(dev) || IS_KABYLAKE(dev))
#define HAS_RUNTIME_PM(dev)	(IS_GEN6(dev) || IS_HASWELL(dev) || \
				 IS_BROADWELL(dev) || IS_VALLEYVIEW(dev) || \
				 IS_CHERRYVIEW(dev) || IS_SKYLAKE(dev) || \
				 IS_KABYLAKE(dev))
#define HAS_RC6(dev)		(INTEL_INFO(dev)->gen >= 6)
#define HAS_RC6p(dev)		(INTEL_INFO(dev)->gen == 6 || IS_IVYBRIDGE(dev))
 
#define HAS_CSR(dev)	(IS_GEN9(dev))
 
#define HAS_GUC_UCODE(dev)	(IS_GEN9(dev) && !IS_KABYLAKE(dev))
#define HAS_GUC_SCHED(dev)	(IS_GEN9(dev) && !IS_KABYLAKE(dev))
 
#define HAS_RESOURCE_STREAMER(dev) (IS_HASWELL(dev) || \
				    INTEL_INFO(dev)->gen >= 8)
 
#define HAS_CORE_RING_FREQ(dev)	(INTEL_INFO(dev)->gen >= 6 && \
				 !IS_VALLEYVIEW(dev) && !IS_CHERRYVIEW(dev) && \
				 !IS_BROXTON(dev))
 
#define INTEL_PCH_DEVICE_ID_MASK		0xff00
#define INTEL_PCH_IBX_DEVICE_ID_TYPE		0x3b00
#define INTEL_PCH_CPT_DEVICE_ID_TYPE		0x1c00
#define INTEL_PCH_PPT_DEVICE_ID_TYPE		0x1e00
#define INTEL_PCH_LPT_DEVICE_ID_TYPE		0x8c00
#define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE		0x9c00
#define INTEL_PCH_SPT_DEVICE_ID_TYPE		0xA100
#define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE		0x9D00
#define INTEL_PCH_P2X_DEVICE_ID_TYPE		0x7100
#define INTEL_PCH_QEMU_DEVICE_ID_TYPE		0x2900 /* qemu q35 has 2918 */
 
#define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
#define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
#define HAS_PCH_LPT(dev) (INTEL_PCH_TYPE(dev) == PCH_LPT)
#define HAS_PCH_LPT_LP(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE)
#define HAS_PCH_LPT_H(dev) (__I915__(dev)->pch_id == INTEL_PCH_LPT_DEVICE_ID_TYPE)
#define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
#define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
#define HAS_PCH_NOP(dev) (INTEL_PCH_TYPE(dev) == PCH_NOP)
#define HAS_PCH_SPLIT(dev) (INTEL_PCH_TYPE(dev) != PCH_NONE)
 
#define HAS_GMCH_DISPLAY(dev) (INTEL_INFO(dev)->gen < 5 || \
			       IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
 
/* DPF == dynamic parity feature */
#define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
#define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
 
#define GT_FREQUENCY_MULTIPLIER 50
#define GEN9_FREQ_SCALER 3
 
#include "i915_trace.h"
 
extern const struct drm_ioctl_desc i915_ioctls[];
extern int i915_max_ioctl;
 
extern int i915_suspend_switcheroo(struct drm_device *dev, pm_message_t state);
extern int i915_resume_switcheroo(struct drm_device *dev);
 
/* i915_params.c */
struct i915_params {
	int modeset;
	int panel_ignore_lid;
	int semaphores;
	int lvds_channel_mode;
	int panel_use_ssc;
	int vbt_sdvo_panel_type;
	int enable_rc6;
	int enable_dc;
	int enable_fbc;
	int enable_ppgtt;
	int enable_execlists;
	int enable_psr;
	unsigned int preliminary_hw_support;
	int disable_power_well;
	int enable_ips;
	int invert_brightness;
	int enable_cmd_parser;
	/* leave bools at the end to not create holes */
	bool enable_hangcheck;
	bool fastboot;
	bool prefault_disable;
	bool load_detect_test;
	bool reset;
	bool disable_display;
	bool disable_vtd_wa;
	bool enable_guc_submission;
	int guc_log_level;
	int use_mmio_flip;
	int mmio_debug;
	bool verbose_state_checks;
	bool nuclear_pageflip;
	int edp_vswing;
                /* Kolibri related */
    char *log_file;
    char *cmdline_mode;
};
extern struct i915_params i915 __read_mostly;
 
				/* i915_dma.c */
extern int i915_driver_load(struct drm_device *, unsigned long flags);
extern int i915_driver_unload(struct drm_device *);
extern int i915_driver_open(struct drm_device *dev, struct drm_file *file);
extern void i915_driver_lastclose(struct drm_device * dev);
extern void i915_driver_preclose(struct drm_device *dev,
				 struct drm_file *file);
extern void i915_driver_postclose(struct drm_device *dev,
				  struct drm_file *file);
#ifdef CONFIG_COMPAT
extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
			      unsigned long arg);
#endif
extern int intel_gpu_reset(struct drm_device *dev);
extern bool intel_has_gpu_reset(struct drm_device *dev);
extern int i915_reset(struct drm_device *dev);
extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
extern void i915_update_gfx_val(struct drm_i915_private *dev_priv);
int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
 
 
/* intel_hotplug.c */
void intel_hpd_irq_handler(struct drm_device *dev, u32 pin_mask, u32 long_mask);
void intel_hpd_init(struct drm_i915_private *dev_priv);
void intel_hpd_init_work(struct drm_i915_private *dev_priv);
void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
bool intel_hpd_pin_to_port(enum hpd_pin pin, enum port *port);
 
/* i915_irq.c */
void i915_queue_hangcheck(struct drm_device *dev);
__printf(3, 4)
void i915_handle_error(struct drm_device *dev, bool wedged,
		       const char *fmt, ...);
 
extern void intel_irq_init(struct drm_i915_private *dev_priv);
int intel_irq_install(struct drm_i915_private *dev_priv);
void intel_irq_uninstall(struct drm_i915_private *dev_priv);
 
extern void intel_uncore_sanitize(struct drm_device *dev);
extern void intel_uncore_early_sanitize(struct drm_device *dev,
					bool restore_forcewake);
extern void intel_uncore_init(struct drm_device *dev);
extern void intel_uncore_check_errors(struct drm_device *dev);
extern void intel_uncore_fini(struct drm_device *dev);
extern void intel_uncore_forcewake_reset(struct drm_device *dev, bool restore);
const char *intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id);
void intel_uncore_forcewake_get(struct drm_i915_private *dev_priv,
				enum forcewake_domains domains);
void intel_uncore_forcewake_put(struct drm_i915_private *dev_priv,
				enum forcewake_domains domains);
/* Like above but the caller must manage the uncore.lock itself.
 * Must be used with I915_READ_FW and friends.
 */
void intel_uncore_forcewake_get__locked(struct drm_i915_private *dev_priv,
					enum forcewake_domains domains);
void intel_uncore_forcewake_put__locked(struct drm_i915_private *dev_priv,
					enum forcewake_domains domains);
void assert_forcewakes_inactive(struct drm_i915_private *dev_priv);
static inline bool intel_vgpu_active(struct drm_device *dev)
{
	return to_i915(dev)->vgpu.active;
}
 
void
i915_enable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
		     u32 status_mask);
 
void
i915_disable_pipestat(struct drm_i915_private *dev_priv, enum pipe pipe,
		      u32 status_mask);
 
void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv);
void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv);
void i915_hotplug_interrupt_update(struct drm_i915_private *dev_priv,
				   uint32_t mask,
				   uint32_t bits);
void ilk_update_display_irq(struct drm_i915_private *dev_priv,
			    uint32_t interrupt_mask,
			    uint32_t enabled_irq_mask);
static inline void
ilk_enable_display_irq(struct drm_i915_private *dev_priv, uint32_t bits)
{
	ilk_update_display_irq(dev_priv, bits, bits);
}
static inline void
ilk_disable_display_irq(struct drm_i915_private *dev_priv, uint32_t bits)
{
	ilk_update_display_irq(dev_priv, bits, 0);
}
void bdw_update_pipe_irq(struct drm_i915_private *dev_priv,
			 enum pipe pipe,
			 uint32_t interrupt_mask,
			 uint32_t enabled_irq_mask);
static inline void bdw_enable_pipe_irq(struct drm_i915_private *dev_priv,
				       enum pipe pipe, uint32_t bits)
{
	bdw_update_pipe_irq(dev_priv, pipe, bits, bits);
}
static inline void bdw_disable_pipe_irq(struct drm_i915_private *dev_priv,
					enum pipe pipe, uint32_t bits)
{
	bdw_update_pipe_irq(dev_priv, pipe, bits, 0);
}
void ibx_display_interrupt_update(struct drm_i915_private *dev_priv,
				  uint32_t interrupt_mask,
				  uint32_t enabled_irq_mask);
static inline void
ibx_enable_display_interrupt(struct drm_i915_private *dev_priv, uint32_t bits)
{
	ibx_display_interrupt_update(dev_priv, bits, bits);
}
static inline void
ibx_disable_display_interrupt(struct drm_i915_private *dev_priv, uint32_t bits)
{
	ibx_display_interrupt_update(dev_priv, bits, 0);
}
 
 
/* i915_gem.c */
int i915_gem_create_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *file_priv);
int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
			  struct drm_file *file_priv);
int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
			      struct drm_file *file_priv);
int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
			     struct drm_file *file_priv);
void i915_gem_execbuffer_move_to_active(struct list_head *vmas,
					struct drm_i915_gem_request *req);
void i915_gem_execbuffer_retire_commands(struct i915_execbuffer_params *params);
int i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
				   struct drm_i915_gem_execbuffer2 *args,
				   struct list_head *vmas);
int i915_gem_execbuffer(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int i915_gem_execbuffer2(struct drm_device *dev, void *data,
			 struct drm_file *file_priv);
int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int i915_gem_get_caching_ioctl(struct drm_device *dev, void *data,
			       struct drm_file *file);
int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
			       struct drm_file *file);
int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
			    struct drm_file *file_priv);
int i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
			   struct drm_file *file_priv);
int i915_gem_set_tiling(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int i915_gem_get_tiling(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
int i915_gem_init_userptr(struct drm_device *dev);
int i915_gem_userptr_ioctl(struct drm_device *dev, void *data,
			   struct drm_file *file);
int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
int i915_gem_wait_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file_priv);
void i915_gem_load(struct drm_device *dev);
void *i915_gem_object_alloc(struct drm_device *dev);
void i915_gem_object_free(struct drm_i915_gem_object *obj);
void i915_gem_object_init(struct drm_i915_gem_object *obj,
			 const struct drm_i915_gem_object_ops *ops);
struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
						  size_t size);
struct drm_i915_gem_object *i915_gem_object_create_from_data(
		struct drm_device *dev, const void *data, size_t size);
void i915_gem_free_object(struct drm_gem_object *obj);
void i915_gem_vma_destroy(struct i915_vma *vma);
 
/* Flags used by pin/bind&friends. */
#define PIN_MAPPABLE	(1<<0)
#define PIN_NONBLOCK	(1<<1)
#define PIN_GLOBAL	(1<<2)
#define PIN_OFFSET_BIAS	(1<<3)
#define PIN_USER	(1<<4)
#define PIN_UPDATE	(1<<5)
#define PIN_ZONE_4G	(1<<6)
#define PIN_HIGH	(1<<7)
#define PIN_OFFSET_FIXED	(1<<8)
#define PIN_OFFSET_MASK (~4095)
int __must_check
i915_gem_object_pin(struct drm_i915_gem_object *obj,
		    struct i915_address_space *vm,
		    uint32_t alignment,
		    uint64_t flags);
int __must_check
i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
			 const struct i915_ggtt_view *view,
			 uint32_t alignment,
			 uint64_t flags);
 
int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
		  u32 flags);
void __i915_vma_set_map_and_fenceable(struct i915_vma *vma);
int __must_check i915_vma_unbind(struct i915_vma *vma);
/*
 * BEWARE: Do not use the function below unless you can _absolutely_
 * _guarantee_ VMA in question is _not in use_ anywhere.
 */
int __must_check __i915_vma_unbind_no_wait(struct i915_vma *vma);
int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
 
int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
				    int *needs_clflush);
 
int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
 
static inline int __sg_page_count(struct scatterlist *sg)
{
	return sg->length >> PAGE_SHIFT;
}
 
struct page *
i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj, int n);
 
static inline struct page *
i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n)
{
	if (WARN_ON(n >= obj->base.size >> PAGE_SHIFT))
		return NULL;
 
	if (n < obj->get_page.last) {
		obj->get_page.sg = obj->pages->sgl;
		obj->get_page.last = 0;
	}
 
	while (obj->get_page.last + __sg_page_count(obj->get_page.sg) <= n) {
		obj->get_page.last += __sg_page_count(obj->get_page.sg++);
		if (unlikely(sg_is_chain(obj->get_page.sg)))
			obj->get_page.sg = sg_chain_ptr(obj->get_page.sg);
	}
 
	return nth_page(sg_page(obj->get_page.sg), n - obj->get_page.last);
}
 
static inline void i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
{
	BUG_ON(obj->pages == NULL);
	obj->pages_pin_count++;
}
static inline void i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
{
	BUG_ON(obj->pages_pin_count == 0);
	obj->pages_pin_count--;
}
 
int __must_check i915_mutex_lock_interruptible(struct drm_device *dev);
int i915_gem_object_sync(struct drm_i915_gem_object *obj,
			 struct intel_engine_cs *to,
			 struct drm_i915_gem_request **to_req);
void i915_vma_move_to_active(struct i915_vma *vma,
			     struct drm_i915_gem_request *req);
int i915_gem_dumb_create(struct drm_file *file_priv,
			 struct drm_device *dev,
			 struct drm_mode_create_dumb *args);
int i915_gem_mmap_gtt(struct drm_file *file_priv, struct drm_device *dev,
		      uint32_t handle, uint64_t *offset);
/**
 * Returns true if seq1 is later than seq2.
 */
static inline bool
i915_seqno_passed(uint32_t seq1, uint32_t seq2)
{
	return (int32_t)(seq1 - seq2) >= 0;
}
 
static inline bool i915_gem_request_started(struct drm_i915_gem_request *req,
					   bool lazy_coherency)
{
	u32 seqno = req->ring->get_seqno(req->ring, lazy_coherency);
	return i915_seqno_passed(seqno, req->previous_seqno);
}
 
static inline bool i915_gem_request_completed(struct drm_i915_gem_request *req,
					      bool lazy_coherency)
{
	u32 seqno = req->ring->get_seqno(req->ring, lazy_coherency);
	return i915_seqno_passed(seqno, req->seqno);
}
 
int __must_check i915_gem_get_seqno(struct drm_device *dev, u32 *seqno);
int __must_check i915_gem_set_seqno(struct drm_device *dev, u32 seqno);
 
struct drm_i915_gem_request *
i915_gem_find_active_request(struct intel_engine_cs *ring);
 
bool i915_gem_retire_requests(struct drm_device *dev);
void i915_gem_retire_requests_ring(struct intel_engine_cs *ring);
int __must_check i915_gem_check_wedge(struct i915_gpu_error *error,
				      bool interruptible);
 
static inline bool i915_reset_in_progress(struct i915_gpu_error *error)
{
	return unlikely(atomic_read(&error->reset_counter)
			& (I915_RESET_IN_PROGRESS_FLAG | I915_WEDGED));
}
 
static inline bool i915_terminally_wedged(struct i915_gpu_error *error)
{
	return atomic_read(&error->reset_counter) & I915_WEDGED;
}
 
static inline u32 i915_reset_count(struct i915_gpu_error *error)
{
	return ((atomic_read(&error->reset_counter) & ~I915_WEDGED) + 1) / 2;
}
 
static inline bool i915_stop_ring_allow_ban(struct drm_i915_private *dev_priv)
{
	return dev_priv->gpu_error.stop_rings == 0 ||
		dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_BAN;
}
 
static inline bool i915_stop_ring_allow_warn(struct drm_i915_private *dev_priv)
{
	return dev_priv->gpu_error.stop_rings == 0 ||
		dev_priv->gpu_error.stop_rings & I915_STOP_RING_ALLOW_WARN;
}
 
void i915_gem_reset(struct drm_device *dev);
bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force);
int __must_check i915_gem_init(struct drm_device *dev);
int i915_gem_init_rings(struct drm_device *dev);
int __must_check i915_gem_init_hw(struct drm_device *dev);
int i915_gem_l3_remap(struct drm_i915_gem_request *req, int slice);
void i915_gem_init_swizzling(struct drm_device *dev);
void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
int __must_check i915_gpu_idle(struct drm_device *dev);
int __must_check i915_gem_suspend(struct drm_device *dev);
void __i915_add_request(struct drm_i915_gem_request *req,
			struct drm_i915_gem_object *batch_obj,
			bool flush_caches);
#define i915_add_request(req) \
	__i915_add_request(req, NULL, true)
#define i915_add_request_no_flush(req) \
	__i915_add_request(req, NULL, false)
int __i915_wait_request(struct drm_i915_gem_request *req,
			unsigned reset_counter,
			bool interruptible,
			s64 *timeout,
			struct intel_rps_client *rps);
int __must_check i915_wait_request(struct drm_i915_gem_request *req);
int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
int __must_check
i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
			       bool readonly);
int __must_check
i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj,
				  bool write);
int __must_check
i915_gem_object_set_to_cpu_domain(struct drm_i915_gem_object *obj, bool write);
int __must_check
i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj,
				     u32 alignment,
 
 
				     const struct i915_ggtt_view *view);
void i915_gem_object_unpin_from_display_plane(struct drm_i915_gem_object *obj,
					      const struct i915_ggtt_view *view);
int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
				int align);
int i915_gem_open(struct drm_device *dev, struct drm_file *file);
void i915_gem_release(struct drm_device *dev, struct drm_file *file);
 
uint32_t
i915_gem_get_gtt_size(struct drm_device *dev, uint32_t size, int tiling_mode);
uint32_t
i915_gem_get_gtt_alignment(struct drm_device *dev, uint32_t size,
			    int tiling_mode, bool fenced);
 
int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
				    enum i915_cache_level cache_level);
 
struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
				struct dma_buf *dma_buf);
 
struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
				struct drm_gem_object *gem_obj, int flags);
 
u64 i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o,
				  const struct i915_ggtt_view *view);
u64 i915_gem_obj_offset(struct drm_i915_gem_object *o,
			struct i915_address_space *vm);
static inline u64
i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *o)
{
	return i915_gem_obj_ggtt_offset_view(o, &i915_ggtt_view_normal);
}
 
bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o,
				  const struct i915_ggtt_view *view);
bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
			struct i915_address_space *vm);
 
unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
				struct i915_address_space *vm);
struct i915_vma *
i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
		    struct i915_address_space *vm);
struct i915_vma *
i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj,
			  const struct i915_ggtt_view *view);
 
struct i915_vma *
i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
				  struct i915_address_space *vm);
struct i915_vma *
i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object *obj,
				       const struct i915_ggtt_view *view);
 
static inline struct i915_vma *
i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj)
{
	return i915_gem_obj_to_ggtt_view(obj, &i915_ggtt_view_normal);
}
bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj);
 
/* Some GGTT VM helpers */
#define i915_obj_to_ggtt(obj) \
	(&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
static inline bool i915_is_ggtt(struct i915_address_space *vm)
{
	struct i915_address_space *ggtt =
		&((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
	return vm == ggtt;
}
 
static inline struct i915_hw_ppgtt *
i915_vm_to_ppgtt(struct i915_address_space *vm)
{
	WARN_ON(i915_is_ggtt(vm));
 
	return container_of(vm, struct i915_hw_ppgtt, base);
}
 
 
static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
{
	return i915_gem_obj_ggtt_bound_view(obj, &i915_ggtt_view_normal);
}
 
static inline unsigned long
i915_gem_obj_ggtt_size(struct drm_i915_gem_object *obj)
{
	return i915_gem_obj_size(obj, i915_obj_to_ggtt(obj));
}
 
static inline int __must_check
i915_gem_obj_ggtt_pin(struct drm_i915_gem_object *obj,
		      uint32_t alignment,
		      unsigned flags)
{
	return i915_gem_object_pin(obj, i915_obj_to_ggtt(obj),
				   alignment, flags | PIN_GLOBAL);
}
 
static inline int
i915_gem_object_ggtt_unbind(struct drm_i915_gem_object *obj)
{
	return i915_vma_unbind(i915_gem_obj_to_ggtt(obj));
}
 
void i915_gem_object_ggtt_unpin_view(struct drm_i915_gem_object *obj,
				     const struct i915_ggtt_view *view);
static inline void
i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj)
{
	i915_gem_object_ggtt_unpin_view(obj, &i915_ggtt_view_normal);
}
 
/* i915_gem_fence.c */
int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj);
int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj);
 
bool i915_gem_object_pin_fence(struct drm_i915_gem_object *obj);
void i915_gem_object_unpin_fence(struct drm_i915_gem_object *obj);
 
void i915_gem_restore_fences(struct drm_device *dev);
 
void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj);
void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj);
 
/* i915_gem_context.c */
int __must_check i915_gem_context_init(struct drm_device *dev);
void i915_gem_context_fini(struct drm_device *dev);
void i915_gem_context_reset(struct drm_device *dev);
int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
int i915_gem_context_enable(struct drm_i915_gem_request *req);
void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
int i915_switch_context(struct drm_i915_gem_request *req);
struct intel_context *
i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
void i915_gem_context_free(struct kref *ctx_ref);
struct drm_i915_gem_object *
i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
static inline void i915_gem_context_reference(struct intel_context *ctx)
{
	kref_get(&ctx->ref);
}
 
static inline void i915_gem_context_unreference(struct intel_context *ctx)
{
	kref_put(&ctx->ref, i915_gem_context_free);
}
 
static inline bool i915_gem_context_is_default(const struct intel_context *c)
{
	return c->user_handle == DEFAULT_CONTEXT_HANDLE;
}
 
int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
				  struct drm_file *file);
int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
				   struct drm_file *file);
int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
				    struct drm_file *file_priv);
int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
				    struct drm_file *file_priv);
 
/* i915_gem_evict.c */
int __must_check i915_gem_evict_something(struct drm_device *dev,
					  struct i915_address_space *vm,
					  int min_size,
					  unsigned alignment,
					  unsigned cache_level,
					  unsigned long start,
					  unsigned long end,
					  unsigned flags);
int __must_check i915_gem_evict_for_vma(struct i915_vma *target);
int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
 
/* belongs in i915_gem_gtt.h */
static inline void i915_gem_chipset_flush(struct drm_device *dev)
{
	if (INTEL_INFO(dev)->gen < 6)
		intel_gtt_chipset_flush();
}
 
/* i915_gem_stolen.c */
int i915_gem_stolen_insert_node(struct drm_i915_private *dev_priv,
				struct drm_mm_node *node, u64 size,
				unsigned alignment);
int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *dev_priv,
					 struct drm_mm_node *node, u64 size,
					 unsigned alignment, u64 start,
					 u64 end);
void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
				 struct drm_mm_node *node);
int i915_gem_init_stolen(struct drm_device *dev);
void i915_gem_cleanup_stolen(struct drm_device *dev);
struct drm_i915_gem_object *
i915_gem_object_create_stolen(struct drm_device *dev, u32 size);
struct drm_i915_gem_object *
i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
					       u32 stolen_offset,
					       u32 gtt_offset,
					       u32 size);
 
/* i915_gem_shrinker.c */
unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv,
			      unsigned long target,
			      unsigned flags);
#define I915_SHRINK_PURGEABLE 0x1
#define I915_SHRINK_UNBOUND 0x2
#define I915_SHRINK_BOUND 0x4
#define I915_SHRINK_ACTIVE 0x8
unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv);
void i915_gem_shrinker_init(struct drm_i915_private *dev_priv);
 
 
/* i915_gem_tiling.c */
static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_object *obj)
{
	struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
 
	return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
		obj->tiling_mode != I915_TILING_NONE;
}
 
/* i915_gem_debug.c */
#if WATCH_LISTS
int i915_verify_lists(struct drm_device *dev);
#else
#define i915_verify_lists(dev) 0
#endif
 
/* i915_debugfs.c */
int i915_debugfs_init(struct drm_minor *minor);
void i915_debugfs_cleanup(struct drm_minor *minor);
#ifdef CONFIG_DEBUG_FS
int i915_debugfs_connector_add(struct drm_connector *connector);
void intel_display_crc_init(struct drm_device *dev);
#else
static inline int i915_debugfs_connector_add(struct drm_connector *connector)
{ return 0; }
static inline void intel_display_crc_init(struct drm_device *dev) {}
#endif
 
/* i915_gpu_error.c */
__printf(2, 3)
void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
int i915_error_state_to_str(struct drm_i915_error_state_buf *estr,
			    const struct i915_error_state_file_priv *error);
int i915_error_state_buf_init(struct drm_i915_error_state_buf *eb,
			      struct drm_i915_private *i915,
			      size_t count, loff_t pos);
static inline void i915_error_state_buf_release(
	struct drm_i915_error_state_buf *eb)
{
	kfree(eb->buf);
}
void i915_capture_error_state(struct drm_device *dev, bool wedge,
			      const char *error_msg);
void i915_error_state_get(struct drm_device *dev,
			  struct i915_error_state_file_priv *error_priv);
void i915_error_state_put(struct i915_error_state_file_priv *error_priv);
void i915_destroy_error_state(struct drm_device *dev);
 
void i915_get_extra_instdone(struct drm_device *dev, uint32_t *instdone);
const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
 
/* i915_cmd_parser.c */
int i915_cmd_parser_get_version(void);
int i915_cmd_parser_init_ring(struct intel_engine_cs *ring);
void i915_cmd_parser_fini_ring(struct intel_engine_cs *ring);
bool i915_needs_cmd_parser(struct intel_engine_cs *ring);
int i915_parse_cmds(struct intel_engine_cs *ring,
		    struct drm_i915_gem_object *batch_obj,
		    struct drm_i915_gem_object *shadow_batch_obj,
		    u32 batch_start_offset,
		    u32 batch_len,
		    bool is_master);
 
/* i915_suspend.c */
extern int i915_save_state(struct drm_device *dev);
extern int i915_restore_state(struct drm_device *dev);
 
/* i915_sysfs.c */
void i915_setup_sysfs(struct drm_device *dev_priv);
void i915_teardown_sysfs(struct drm_device *dev_priv);
 
/* intel_i2c.c */
extern int intel_setup_gmbus(struct drm_device *dev);
extern void intel_teardown_gmbus(struct drm_device *dev);
extern bool intel_gmbus_is_valid_pin(struct drm_i915_private *dev_priv,
				     unsigned int pin);
 
extern struct i2c_adapter *
intel_gmbus_get_adapter(struct drm_i915_private *dev_priv, unsigned int pin);
extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
{
	return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
}
extern void intel_i2c_reset(struct drm_device *dev);
 
/* intel_bios.c */
int intel_bios_init(struct drm_i915_private *dev_priv);
bool intel_bios_is_valid_vbt(const void *buf, size_t size);
 
/* intel_opregion.c */
#ifdef CONFIG_ACPI
extern int intel_opregion_setup(struct drm_device *dev);
extern void intel_opregion_init(struct drm_device *dev);
extern void intel_opregion_fini(struct drm_device *dev);
extern void intel_opregion_asle_intr(struct drm_device *dev);
extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
					 bool enable);
extern int intel_opregion_notify_adapter(struct drm_device *dev,
					 pci_power_t state);
#else
static inline int intel_opregion_setup(struct drm_device *dev) { return 0; }
static inline void intel_opregion_init(struct drm_device *dev) { return; }
static inline void intel_opregion_fini(struct drm_device *dev) { return; }
static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; }
static inline int
intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable)
{
	return 0;
}
static inline int
intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
{
	return 0;
}
#endif
 
/* intel_acpi.c */
#ifdef CONFIG_ACPI
extern void intel_register_dsm_handler(void);
extern void intel_unregister_dsm_handler(void);
#else
static inline void intel_register_dsm_handler(void) { return; }
static inline void intel_unregister_dsm_handler(void) { return; }
#endif /* CONFIG_ACPI */
 
/* modesetting */
extern void intel_modeset_init_hw(struct drm_device *dev);
extern void intel_modeset_init(struct drm_device *dev);
extern void intel_modeset_gem_init(struct drm_device *dev);
extern void intel_modeset_cleanup(struct drm_device *dev);
extern void intel_connector_unregister(struct intel_connector *);
extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
extern void intel_display_resume(struct drm_device *dev);
extern void i915_redisable_vga(struct drm_device *dev);
extern void i915_redisable_vga_power_on(struct drm_device *dev);
extern bool ironlake_set_drps(struct drm_device *dev, u8 val);
extern void intel_init_pch_refclk(struct drm_device *dev);
extern void intel_set_rps(struct drm_device *dev, u8 val);
extern void intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
				  bool enable);
extern void intel_detect_pch(struct drm_device *dev);
 
extern int intel_enable_rc6(const struct drm_device *dev);
 
extern bool i915_semaphore_is_enabled(struct drm_device *dev);
int i915_reg_read_ioctl(struct drm_device *dev, void *data,
			struct drm_file *file);
int i915_get_reset_stats_ioctl(struct drm_device *dev, void *data,
			       struct drm_file *file);
 
/* overlay */
extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev);
extern void intel_overlay_print_error_state(struct drm_i915_error_state_buf *e,
					    struct intel_overlay_error_state *error);
 
extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev);
extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
					    struct drm_device *dev,
					    struct intel_display_error_state *error);
 
int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val);
int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val);
 
/* intel_sideband.c */
u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr);
void vlv_punit_write(struct drm_i915_private *dev_priv, u32 addr, u32 val);
u32 vlv_nc_read(struct drm_i915_private *dev_priv, u8 addr);
u32 vlv_gpio_nc_read(struct drm_i915_private *dev_priv, u32 reg);
void vlv_gpio_nc_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
u32 vlv_cck_read(struct drm_i915_private *dev_priv, u32 reg);
void vlv_cck_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
u32 vlv_ccu_read(struct drm_i915_private *dev_priv, u32 reg);
void vlv_ccu_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
u32 vlv_bunit_read(struct drm_i915_private *dev_priv, u32 reg);
void vlv_bunit_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
u32 vlv_gps_core_read(struct drm_i915_private *dev_priv, u32 reg);
void vlv_gps_core_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
u32 vlv_dpio_read(struct drm_i915_private *dev_priv, enum pipe pipe, int reg);
void vlv_dpio_write(struct drm_i915_private *dev_priv, enum pipe pipe, int reg, u32 val);
u32 intel_sbi_read(struct drm_i915_private *dev_priv, u16 reg,
		   enum intel_sbi_destination destination);
void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value,
		     enum intel_sbi_destination destination);
u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg);
void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val);
 
int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
 
#define I915_READ8(reg)		dev_priv->uncore.funcs.mmio_readb(dev_priv, (reg), true)
#define I915_WRITE8(reg, val)	dev_priv->uncore.funcs.mmio_writeb(dev_priv, (reg), (val), true)
 
#define I915_READ16(reg)	dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), true)
#define I915_WRITE16(reg, val)	dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), true)
#define I915_READ16_NOTRACE(reg)	dev_priv->uncore.funcs.mmio_readw(dev_priv, (reg), false)
#define I915_WRITE16_NOTRACE(reg, val)	dev_priv->uncore.funcs.mmio_writew(dev_priv, (reg), (val), false)
 
#define I915_READ(reg)		dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), true)
#define I915_WRITE(reg, val)	dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), true)
#define I915_READ_NOTRACE(reg)		dev_priv->uncore.funcs.mmio_readl(dev_priv, (reg), false)
#define I915_WRITE_NOTRACE(reg, val)	dev_priv->uncore.funcs.mmio_writel(dev_priv, (reg), (val), false)
 
/* Be very careful with read/write 64-bit values. On 32-bit machines, they
 * will be implemented using 2 32-bit writes in an arbitrary order with
 * an arbitrary delay between them. This can cause the hardware to
 * act upon the intermediate value, possibly leading to corruption and
 * machine death. You have been warned.
 */
#define I915_WRITE64(reg, val)	dev_priv->uncore.funcs.mmio_writeq(dev_priv, (reg), (val), true)
#define I915_READ64(reg)	dev_priv->uncore.funcs.mmio_readq(dev_priv, (reg), true)
 
#define I915_READ64_2x32(lower_reg, upper_reg) ({			\
	u32 upper, lower, old_upper, loop = 0;				\
	upper = I915_READ(upper_reg);					\
	do {								\
		old_upper = upper;					\
		lower = I915_READ(lower_reg);				\
		upper = I915_READ(upper_reg);				\
	} while (upper != old_upper && loop++ < 2);			\
	(u64)upper << 32 | lower; })
 
#define POSTING_READ(reg)	(void)I915_READ_NOTRACE(reg)
#define POSTING_READ16(reg)	(void)I915_READ16_NOTRACE(reg)
 
#define __raw_read(x, s) \
static inline uint##x##_t __raw_i915_read##x(struct drm_i915_private *dev_priv, \
					     i915_reg_t reg) \
{ \
	return read##s(dev_priv->regs + i915_mmio_reg_offset(reg)); \
}
 
#define __raw_write(x, s) \
static inline void __raw_i915_write##x(struct drm_i915_private *dev_priv, \
				       i915_reg_t reg, uint##x##_t val) \
{ \
	write##s(val, dev_priv->regs + i915_mmio_reg_offset(reg)); \
}
__raw_read(8, b)
__raw_read(16, w)
__raw_read(32, l)
__raw_read(64, q)
 
__raw_write(8, b)
__raw_write(16, w)
__raw_write(32, l)
__raw_write(64, q)
 
#undef __raw_read
#undef __raw_write
 
/* These are untraced mmio-accessors that are only valid to be used inside
 * criticial sections inside IRQ handlers where forcewake is explicitly
 * controlled.
 * Think twice, and think again, before using these.
 * Note: Should only be used between intel_uncore_forcewake_irqlock() and
 * intel_uncore_forcewake_irqunlock().
 */
#define I915_READ_FW(reg__) __raw_i915_read32(dev_priv, (reg__))
#define I915_WRITE_FW(reg__, val__) __raw_i915_write32(dev_priv, (reg__), (val__))
#define POSTING_READ_FW(reg__) (void)I915_READ_FW(reg__)
 
/* "Broadcast RGB" property */
#define INTEL_BROADCAST_RGB_AUTO 0
#define INTEL_BROADCAST_RGB_FULL 1
#define INTEL_BROADCAST_RGB_LIMITED 2
 
static inline i915_reg_t i915_vgacntrl_reg(struct drm_device *dev)
{
	if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
		return VLV_VGACNTRL;
	else if (INTEL_INFO(dev)->gen >= 5)
		return CPU_VGACNTRL;
	else
		return VGACNTRL;
}
 
static inline void __user *to_user_ptr(u64 address)
{
	return (void __user *)(uintptr_t)address;
}
 
static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m)
{
	unsigned long j = msecs_to_jiffies(m);
 
	return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
}
 
static inline unsigned long nsecs_to_jiffies_timeout(const u64 n)
{
        return min_t(u64, MAX_JIFFY_OFFSET, nsecs_to_jiffies64(n) + 1);
}
 
static inline unsigned long
timespec_to_jiffies_timeout(const struct timespec *value)
{
	unsigned long j = timespec_to_jiffies(value);
 
	return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1);
}
 
/*
 * If you need to wait X milliseconds between events A and B, but event B
 * doesn't happen exactly after event A, you record the timestamp (jiffies) of
 * when event A happened, then just before event B you call this function and
 * pass the timestamp as the first argument, and X as the second argument.
 */
static inline void
wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
{
	unsigned long target_jiffies, tmp_jiffies, remaining_jiffies;
 
	/*
	 * Don't re-read the value of "jiffies" every time since it may change
	 * behind our back and break the math.
	 */
	tmp_jiffies = jiffies;
	target_jiffies = timestamp_jiffies +
			 msecs_to_jiffies_timeout(to_wait_ms);
 
	if (time_after(target_jiffies, tmp_jiffies)) {
		remaining_jiffies = target_jiffies - tmp_jiffies;
		delay(remaining_jiffies);
	}
}
 
static inline void i915_trace_irq_get(struct intel_engine_cs *ring,
				      struct drm_i915_gem_request *req)
{
	if (ring->trace_irq_req == NULL && ring->irq_get(ring))
		i915_gem_request_assign(&ring->trace_irq_req, req);
}
 
#include "intel_drv.h"
 
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/**
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/**
>

Rev 6935	Rev 6937
1	/* i915_drv.h -- Private header for the I915 driver -- linux-c --	1	/* i915_drv.h -- Private header for the I915 driver -- linux-c --
2	*/	2	*/
3	/*	3	/*
4	*	4	*
5	* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.	5	* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6	* All Rights Reserved.	6	* All Rights Reserved.
7	*	7	*
8	* Permission is hereby granted, free of charge, to any person obtaining a	8	* Permission is hereby granted, free of charge, to any person obtaining a
9	* copy of this software and associated documentation files (the	9	* copy of this software and associated documentation files (the
10	* "Software"), to deal in the Software without restriction, including	10	* "Software"), to deal in the Software without restriction, including
11	* without limitation the rights to use, copy, modify, merge, publish,	11	* without limitation the rights to use, copy, modify, merge, publish,
12	* distribute, sub license, and/or sell copies of the Software, and to	12	* distribute, sub license, and/or sell copies of the Software, and to
13	* permit persons to whom the Software is furnished to do so, subject to	13	* permit persons to whom the Software is furnished to do so, subject to
14	* the following conditions:	14	* the following conditions:
15	*	15	*
16	* The above copyright notice and this permission notice (including the	16	* The above copyright notice and this permission notice (including the
17	* next paragraph) shall be included in all copies or substantial portions	17	* next paragraph) shall be included in all copies or substantial portions
18	* of the Software.	18	* of the Software.
19	*	19	*
20	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS	20	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF	21	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.	22	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23	* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR	23	* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24	* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,	24	* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25	* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE	25	* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26	* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.	26	* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27	*	27	*
28	*/	28	*/
29		29
30	#ifndef _I915_DRV_H_	30	#ifndef _I915_DRV_H_
31	#define _I915_DRV_H_	31	#define _I915_DRV_H_
32		32
33	#include	33	#include
34	#include	34	#include
-		35
35		36	#include
36	#include "i915_reg.h"	37	#include "i915_reg.h"
37	#include "intel_bios.h"	38	#include "intel_bios.h"
38	#include "intel_ringbuffer.h"	39	#include "intel_ringbuffer.h"
39	#include "intel_lrc.h"	40	#include "intel_lrc.h"
40	#include "i915_gem_gtt.h"	41	#include "i915_gem_gtt.h"
41	#include "i915_gem_render_state.h"	42	#include "i915_gem_render_state.h"
42	#include	43	#include
43	#include	44	#include
44	#include	45	#include
45	#include	46	#include
46	#include /* for struct drm_dma_handle */	47	#include /* for struct drm_dma_handle */
47	#include	48	#include
48	//#include	49	#include
49	#include	50	#include
50	#include	51	#include
51	#include "intel_guc.h"	52	#include "intel_guc.h"
52		53
53	#include	54	#include
54		-
55	#define ioread32(addr) readl(addr)	-
56	static inline u8 inb(u16 port)	-
57	{	-
58	u8 v;	-
59	asm volatile("inb %1,%0" : "=a" (v) : "dN" (port));	-
60	return v;	-
61	}	-
62		-
63	static inline void outb(u8 v, u16 port)	-
64	{	-
65	asm volatile("outb %0,%1" : : "a" (v), "dN" (port));	-
66	}	-
67		-
68		55
69	/* General customization:	56	/* General customization:
70	*/	57	*/
71		58
72	#define DRIVER_NAME "i915"	59	#define DRIVER_NAME "i915"
73	#define DRIVER_DESC "Intel Graphics"	60	#define DRIVER_DESC "Intel Graphics"
74	#define DRIVER_DATE "20151010"	61	#define DRIVER_DATE "20151218"
75		62
76	#undef WARN_ON	63	#undef WARN_ON
77	/* Many gcc seem to no see through this and fall over :( */	64	/* Many gcc seem to no see through this and fall over :( */
78	#if 0	65	#if 0
79	#define WARN_ON(x) ({ \	66	#define WARN_ON(x) ({ \
80	bool __i915_warn_cond = (x); \	67	bool __i915_warn_cond = (x); \
81	if (__builtin_constant_p(__i915_warn_cond)) \	68	if (__builtin_constant_p(__i915_warn_cond)) \
82	BUILD_BUG_ON(__i915_warn_cond); \	69	BUILD_BUG_ON(__i915_warn_cond); \
83	WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })	70	WARN(__i915_warn_cond, "WARN_ON(" #x ")"); })
84	#else	71	#else
85	#define WARN_ON(x) WARN((x), "WARN_ON(%s)", #x )	72	#define WARN_ON(x) WARN((x), "WARN_ON(%s)", #x )
86	#endif	73	#endif
87		74
88	#undef WARN_ON_ONCE	75	#undef WARN_ON_ONCE
89	#define WARN_ON_ONCE(x) WARN_ONCE((x), "WARN_ON_ONCE(%s)", #x )	76	#define WARN_ON_ONCE(x) WARN_ONCE((x), "WARN_ON_ONCE(%s)", #x )
90		77
91	#define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \	78	#define MISSING_CASE(x) WARN(1, "Missing switch case (%lu) in %s\n", \
92	(long) (x), __func__);	79	(long) (x), __func__);
93		80
94	/* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and	81	/* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
95	* WARN_ON()) for hw state sanity checks to check for unexpected conditions	82	* WARN_ON()) for hw state sanity checks to check for unexpected conditions
96	* which may not necessarily be a user visible problem. This will either	83	* which may not necessarily be a user visible problem. This will either
97	* WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to	84	* WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
98	* enable distros and users to tailor their preferred amount of i915 abrt	85	* enable distros and users to tailor their preferred amount of i915 abrt
99	* spam.	86	* spam.
100	*/	87	*/
101	#define I915_STATE_WARN(condition, format...) ({ \	88	#define I915_STATE_WARN(condition, format...) ({ \
102	int __ret_warn_on = !!(condition); \	89	int __ret_warn_on = !!(condition); \
103	if (unlikely(__ret_warn_on)) { \	90	if (unlikely(__ret_warn_on)) { \
104	if (i915.verbose_state_checks) \	91	if (i915.verbose_state_checks) \
105	WARN(1, format); \	92	WARN(1, format); \
106	else \	93	else \
107	DRM_ERROR(format); \	94	DRM_ERROR(format); \
108	} \	95	} \
109	unlikely(__ret_warn_on); \	96	unlikely(__ret_warn_on); \
110	})	97	})
111		98
112	#define I915_STATE_WARN_ON(condition) ({ \	99	#define I915_STATE_WARN_ON(condition) ({ \
113	int __ret_warn_on = !!(condition); \	100	int __ret_warn_on = !!(condition); \
114	if (unlikely(__ret_warn_on)) { \	101	if (unlikely(__ret_warn_on)) { \
115	if (i915.verbose_state_checks) \	102	if (i915.verbose_state_checks) \
116	WARN(1, "WARN_ON(" #condition ")\n"); \	103	WARN(1, "WARN_ON(" #condition ")\n"); \
117	else \	104	else \
118	DRM_ERROR("WARN_ON(" #condition ")\n"); \	105	DRM_ERROR("WARN_ON(" #condition ")\n"); \
119	} \	106	} \
120	unlikely(__ret_warn_on); \	107	unlikely(__ret_warn_on); \
121	})	108	})
122		109
123	static inline const char *yesno(bool v)	110	static inline const char *yesno(bool v)
124	{	111	{
125	return v ? "yes" : "no";	112	return v ? "yes" : "no";
126	}	113	}
127		114
128	enum pipe {	115	enum pipe {
129	INVALID_PIPE = -1,	116	INVALID_PIPE = -1,
130	PIPE_A = 0,	117	PIPE_A = 0,
131	PIPE_B,	118	PIPE_B,
132	PIPE_C,	119	PIPE_C,
133	_PIPE_EDP,	120	_PIPE_EDP,
134	I915_MAX_PIPES = _PIPE_EDP	121	I915_MAX_PIPES = _PIPE_EDP
135	};	122	};
136	#define pipe_name(p) ((p) + 'A')	123	#define pipe_name(p) ((p) + 'A')
137		124
138	enum transcoder {	125	enum transcoder {
139	TRANSCODER_A = 0,	126	TRANSCODER_A = 0,
140	TRANSCODER_B,	127	TRANSCODER_B,
141	TRANSCODER_C,	128	TRANSCODER_C,
142	TRANSCODER_EDP,	129	TRANSCODER_EDP,
143	I915_MAX_TRANSCODERS	130	I915_MAX_TRANSCODERS
144	};	131	};
145	#define transcoder_name(t) ((t) + 'A')	132	#define transcoder_name(t) ((t) + 'A')
146		133
147	/*	134	/*
148	* I915_MAX_PLANES in the enum below is the maximum (across all platforms)	135	* I915_MAX_PLANES in the enum below is the maximum (across all platforms)
149	* number of planes per CRTC. Not all platforms really have this many planes,	136	* number of planes per CRTC. Not all platforms really have this many planes,
150	* which means some arrays of size I915_MAX_PLANES may have unused entries	137	* which means some arrays of size I915_MAX_PLANES may have unused entries
151	* between the topmost sprite plane and the cursor plane.	138	* between the topmost sprite plane and the cursor plane.
152	*/	139	*/
153	enum plane {	140	enum plane {
154	PLANE_A = 0,	141	PLANE_A = 0,
155	PLANE_B,	142	PLANE_B,
156	PLANE_C,	143	PLANE_C,
157	PLANE_CURSOR,	144	PLANE_CURSOR,
158	I915_MAX_PLANES,	145	I915_MAX_PLANES,
159	};	146	};
160	#define plane_name(p) ((p) + 'A')	147	#define plane_name(p) ((p) + 'A')
161		148
162	#define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')	149	#define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
163		150
164	enum port {	151	enum port {
165	PORT_A = 0,	152	PORT_A = 0,
166	PORT_B,	153	PORT_B,
167	PORT_C,	154	PORT_C,
168	PORT_D,	155	PORT_D,
169	PORT_E,	156	PORT_E,
170	I915_MAX_PORTS	157	I915_MAX_PORTS
171	};	158	};
172	#define port_name(p) ((p) + 'A')	159	#define port_name(p) ((p) + 'A')
173		160
174	#define I915_NUM_PHYS_VLV 2	161	#define I915_NUM_PHYS_VLV 2
175		162
176	enum dpio_channel {	163	enum dpio_channel {
177	DPIO_CH0,	164	DPIO_CH0,
178	DPIO_CH1	165	DPIO_CH1
179	};	166	};
180		167
181	enum dpio_phy {	168	enum dpio_phy {
182	DPIO_PHY0,	169	DPIO_PHY0,
183	DPIO_PHY1	170	DPIO_PHY1
184	};	171	};
185		172
186	enum intel_display_power_domain {	173	enum intel_display_power_domain {
187	POWER_DOMAIN_PIPE_A,	174	POWER_DOMAIN_PIPE_A,
188	POWER_DOMAIN_PIPE_B,	175	POWER_DOMAIN_PIPE_B,
189	POWER_DOMAIN_PIPE_C,	176	POWER_DOMAIN_PIPE_C,
190	POWER_DOMAIN_PIPE_A_PANEL_FITTER,	177	POWER_DOMAIN_PIPE_A_PANEL_FITTER,
191	POWER_DOMAIN_PIPE_B_PANEL_FITTER,	178	POWER_DOMAIN_PIPE_B_PANEL_FITTER,
192	POWER_DOMAIN_PIPE_C_PANEL_FITTER,	179	POWER_DOMAIN_PIPE_C_PANEL_FITTER,
193	POWER_DOMAIN_TRANSCODER_A,	180	POWER_DOMAIN_TRANSCODER_A,
194	POWER_DOMAIN_TRANSCODER_B,	181	POWER_DOMAIN_TRANSCODER_B,
195	POWER_DOMAIN_TRANSCODER_C,	182	POWER_DOMAIN_TRANSCODER_C,
196	POWER_DOMAIN_TRANSCODER_EDP,	183	POWER_DOMAIN_TRANSCODER_EDP,
197	POWER_DOMAIN_PORT_DDI_A_2_LANES,	-
198	POWER_DOMAIN_PORT_DDI_A_4_LANES,	184	POWER_DOMAIN_PORT_DDI_A_LANES,
199	POWER_DOMAIN_PORT_DDI_B_2_LANES,	-
200	POWER_DOMAIN_PORT_DDI_B_4_LANES,	185	POWER_DOMAIN_PORT_DDI_B_LANES,
201	POWER_DOMAIN_PORT_DDI_C_2_LANES,	-
202	POWER_DOMAIN_PORT_DDI_C_4_LANES,	186	POWER_DOMAIN_PORT_DDI_C_LANES,
203	POWER_DOMAIN_PORT_DDI_D_2_LANES,	-
204	POWER_DOMAIN_PORT_DDI_D_4_LANES,	187	POWER_DOMAIN_PORT_DDI_D_LANES,
205	POWER_DOMAIN_PORT_DDI_E_2_LANES,	188	POWER_DOMAIN_PORT_DDI_E_LANES,
206	POWER_DOMAIN_PORT_DSI,	189	POWER_DOMAIN_PORT_DSI,
207	POWER_DOMAIN_PORT_CRT,	190	POWER_DOMAIN_PORT_CRT,
208	POWER_DOMAIN_PORT_OTHER,	191	POWER_DOMAIN_PORT_OTHER,
209	POWER_DOMAIN_VGA,	192	POWER_DOMAIN_VGA,
210	POWER_DOMAIN_AUDIO,	193	POWER_DOMAIN_AUDIO,
211	POWER_DOMAIN_PLLS,	194	POWER_DOMAIN_PLLS,
212	POWER_DOMAIN_AUX_A,	195	POWER_DOMAIN_AUX_A,
213	POWER_DOMAIN_AUX_B,	196	POWER_DOMAIN_AUX_B,
214	POWER_DOMAIN_AUX_C,	197	POWER_DOMAIN_AUX_C,
215	POWER_DOMAIN_AUX_D,	198	POWER_DOMAIN_AUX_D,
216	POWER_DOMAIN_GMBUS,	199	POWER_DOMAIN_GMBUS,
-		200	POWER_DOMAIN_MODESET,
217	POWER_DOMAIN_INIT,	201	POWER_DOMAIN_INIT,
218		202
219	POWER_DOMAIN_NUM,	203	POWER_DOMAIN_NUM,
220	};	204	};
221		205
222	#define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)	206	#define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
223	#define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \	207	#define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \
224	((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)	208	((pipe) + POWER_DOMAIN_PIPE_A_PANEL_FITTER)
225	#define POWER_DOMAIN_TRANSCODER(tran) \	209	#define POWER_DOMAIN_TRANSCODER(tran) \
226	((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \	210	((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \
227	(tran) + POWER_DOMAIN_TRANSCODER_A)	211	(tran) + POWER_DOMAIN_TRANSCODER_A)
228		212
229	enum hpd_pin {	213	enum hpd_pin {
230	HPD_NONE = 0,	214	HPD_NONE = 0,
231	HPD_TV = HPD_NONE, /* TV is known to be unreliable */	215	HPD_TV = HPD_NONE, /* TV is known to be unreliable */
232	HPD_CRT,	216	HPD_CRT,
233	HPD_SDVO_B,	217	HPD_SDVO_B,
234	HPD_SDVO_C,	218	HPD_SDVO_C,
235	HPD_PORT_A,	219	HPD_PORT_A,
236	HPD_PORT_B,	220	HPD_PORT_B,
237	HPD_PORT_C,	221	HPD_PORT_C,
238	HPD_PORT_D,	222	HPD_PORT_D,
239	HPD_PORT_E,	223	HPD_PORT_E,
240	HPD_NUM_PINS	224	HPD_NUM_PINS
241	};	225	};
242		226
243	#define for_each_hpd_pin(__pin) \	227	#define for_each_hpd_pin(__pin) \
244	for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)	228	for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
245		229
246	struct i915_hotplug {	230	struct i915_hotplug {
247	struct work_struct hotplug_work;	231	struct work_struct hotplug_work;
248		232
249	struct {	233	struct {
250	unsigned long last_jiffies;	234	unsigned long last_jiffies;
251	int count;	235	int count;
252	enum {	236	enum {
253	HPD_ENABLED = 0,	237	HPD_ENABLED = 0,
254	HPD_DISABLED = 1,	238	HPD_DISABLED = 1,
255	HPD_MARK_DISABLED = 2	239	HPD_MARK_DISABLED = 2
256	} state;	240	} state;
257	} stats[HPD_NUM_PINS];	241	} stats[HPD_NUM_PINS];
258	u32 event_bits;	242	u32 event_bits;
259	struct delayed_work reenable_work;	243	struct delayed_work reenable_work;
260		244
261	struct intel_digital_port *irq_port[I915_MAX_PORTS];	245	struct intel_digital_port *irq_port[I915_MAX_PORTS];
262	u32 long_port_mask;	246	u32 long_port_mask;
263	u32 short_port_mask;	247	u32 short_port_mask;
264	struct work_struct dig_port_work;	248	struct work_struct dig_port_work;
265		249
266	/*	250	/*
267	* if we get a HPD irq from DP and a HPD irq from non-DP	251	* if we get a HPD irq from DP and a HPD irq from non-DP
268	* the non-DP HPD could block the workqueue on a mode config	252	* the non-DP HPD could block the workqueue on a mode config
269	* mutex getting, that userspace may have taken. However	253	* mutex getting, that userspace may have taken. However
270	* userspace is waiting on the DP workqueue to run which is	254	* userspace is waiting on the DP workqueue to run which is
271	* blocked behind the non-DP one.	255	* blocked behind the non-DP one.
272	*/	256	*/
273	struct workqueue_struct *dp_wq;	257	struct workqueue_struct *dp_wq;
274	};	258	};
275		259
276	#define I915_GEM_GPU_DOMAINS \	260	#define I915_GEM_GPU_DOMAINS \
277	(I915_GEM_DOMAIN_RENDER \| \	261	(I915_GEM_DOMAIN_RENDER \| \
278	I915_GEM_DOMAIN_SAMPLER \| \	262	I915_GEM_DOMAIN_SAMPLER \| \
279	I915_GEM_DOMAIN_COMMAND \| \	263	I915_GEM_DOMAIN_COMMAND \| \
280	I915_GEM_DOMAIN_INSTRUCTION \| \	264	I915_GEM_DOMAIN_INSTRUCTION \| \
281	I915_GEM_DOMAIN_VERTEX)	265	I915_GEM_DOMAIN_VERTEX)
282		266
283	#define for_each_pipe(__dev_priv, __p) \	267	#define for_each_pipe(__dev_priv, __p) \
284	for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)	268	for ((__p) = 0; (__p) < INTEL_INFO(__dev_priv)->num_pipes; (__p)++)
285	#define for_each_plane(__dev_priv, __pipe, __p) \	269	#define for_each_plane(__dev_priv, __pipe, __p) \
286	for ((__p) = 0; \	270	for ((__p) = 0; \
287	(__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \	271	(__p) < INTEL_INFO(__dev_priv)->num_sprites[(__pipe)] + 1; \
288	(__p)++)	272	(__p)++)
289	#define for_each_sprite(__dev_priv, __p, __s) \	273	#define for_each_sprite(__dev_priv, __p, __s) \
290	for ((__s) = 0; \	274	for ((__s) = 0; \
291	(__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)]; \	275	(__s) < INTEL_INFO(__dev_priv)->num_sprites[(__p)]; \
292	(__s)++)	276	(__s)++)
293		277
294	#define for_each_crtc(dev, crtc) \	278	#define for_each_crtc(dev, crtc) \
295	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)	279	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
296		280
297	#define for_each_intel_plane(dev, intel_plane) \	281	#define for_each_intel_plane(dev, intel_plane) \
298	list_for_each_entry(intel_plane, \	282	list_for_each_entry(intel_plane, \
299	&dev->mode_config.plane_list, \	283	&dev->mode_config.plane_list, \
300	base.head)	284	base.head)
301		285
302	#define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) \	286	#define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) \
303	list_for_each_entry(intel_plane, \	287	list_for_each_entry(intel_plane, \
304	&(dev)->mode_config.plane_list, \	288	&(dev)->mode_config.plane_list, \
305	base.head) \	289	base.head) \
306	if ((intel_plane)->pipe == (intel_crtc)->pipe)	290	for_each_if ((intel_plane)->pipe == (intel_crtc)->pipe)
307		291
308	#define for_each_intel_crtc(dev, intel_crtc) \	292	#define for_each_intel_crtc(dev, intel_crtc) \
309	list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)	293	list_for_each_entry(intel_crtc, &dev->mode_config.crtc_list, base.head)
310		294
311	#define for_each_intel_encoder(dev, intel_encoder) \	295	#define for_each_intel_encoder(dev, intel_encoder) \
312	list_for_each_entry(intel_encoder, \	296	list_for_each_entry(intel_encoder, \
313	&(dev)->mode_config.encoder_list, \	297	&(dev)->mode_config.encoder_list, \
314	base.head)	298	base.head)
315		299
316	#define for_each_intel_connector(dev, intel_connector) \	300	#define for_each_intel_connector(dev, intel_connector) \
317	list_for_each_entry(intel_connector, \	301	list_for_each_entry(intel_connector, \
318	&dev->mode_config.connector_list, \	302	&dev->mode_config.connector_list, \
319	base.head)	303	base.head)
320		304
321	#define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \	305	#define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
322	list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \	306	list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
323	if ((intel_encoder)->base.crtc == (__crtc))	307	for_each_if ((intel_encoder)->base.crtc == (__crtc))
324		308
325	#define for_each_connector_on_encoder(dev, __encoder, intel_connector) \	309	#define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
326	list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \	310	list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
327	if ((intel_connector)->base.encoder == (__encoder))	311	for_each_if ((intel_connector)->base.encoder == (__encoder))
328		312
329	#define for_each_power_domain(domain, mask) \	313	#define for_each_power_domain(domain, mask) \
330	for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \	314	for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++) \
331	if ((1 << (domain)) & (mask))	315	for_each_if ((1 << (domain)) & (mask))
332		316
333	struct drm_i915_private;	317	struct drm_i915_private;
334	struct i915_mm_struct;	318	struct i915_mm_struct;
335	struct i915_mmu_object;	319	struct i915_mmu_object;
336		320
337	struct drm_i915_file_private {	321	struct drm_i915_file_private {
338	struct drm_i915_private *dev_priv;	322	struct drm_i915_private *dev_priv;
339	struct drm_file *file;	323	struct drm_file *file;
340		324
341	struct {	325	struct {
342	spinlock_t lock;	326	spinlock_t lock;
343	struct list_head request_list;	327	struct list_head request_list;
344	/* 20ms is a fairly arbitrary limit (greater than the average frame time)	328	/* 20ms is a fairly arbitrary limit (greater than the average frame time)
345	* chosen to prevent the CPU getting more than a frame ahead of the GPU	329	* chosen to prevent the CPU getting more than a frame ahead of the GPU
346	* (when using lax throttling for the frontbuffer). We also use it to	330	* (when using lax throttling for the frontbuffer). We also use it to
347	* offer free GPU waitboosts for severely congested workloads.	331	* offer free GPU waitboosts for severely congested workloads.
348	*/	332	*/
349	#define DRM_I915_THROTTLE_JIFFIES msecs_to_jiffies(20)	333	#define DRM_I915_THROTTLE_JIFFIES msecs_to_jiffies(20)
350	} mm;	334	} mm;
351	struct idr context_idr;	335	struct idr context_idr;
352		336
353	struct intel_rps_client {	337	struct intel_rps_client {
354	struct list_head link;	338	struct list_head link;
355	unsigned boosts;	339	unsigned boosts;
356	} rps;	340	} rps;
357		341
358	struct intel_engine_cs *bsd_ring;	342	struct intel_engine_cs *bsd_ring;
359	};	343	};
360		344
361	enum intel_dpll_id {	345	enum intel_dpll_id {
362	DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */	346	DPLL_ID_PRIVATE = -1, /* non-shared dpll in use */
363	/* real shared dpll ids must be >= 0 */	347	/* real shared dpll ids must be >= 0 */
364	DPLL_ID_PCH_PLL_A = 0,	348	DPLL_ID_PCH_PLL_A = 0,
365	DPLL_ID_PCH_PLL_B = 1,	349	DPLL_ID_PCH_PLL_B = 1,
366	/* hsw/bdw */	350	/* hsw/bdw */
367	DPLL_ID_WRPLL1 = 0,	351	DPLL_ID_WRPLL1 = 0,
368	DPLL_ID_WRPLL2 = 1,	352	DPLL_ID_WRPLL2 = 1,
369	DPLL_ID_SPLL = 2,	353	DPLL_ID_SPLL = 2,
370		354
371	/* skl */	355	/* skl */
372	DPLL_ID_SKL_DPLL1 = 0,	356	DPLL_ID_SKL_DPLL1 = 0,
373	DPLL_ID_SKL_DPLL2 = 1,	357	DPLL_ID_SKL_DPLL2 = 1,
374	DPLL_ID_SKL_DPLL3 = 2,	358	DPLL_ID_SKL_DPLL3 = 2,
375	};	359	};
376	#define I915_NUM_PLLS 3	360	#define I915_NUM_PLLS 3
377		361
378	struct intel_dpll_hw_state {	362	struct intel_dpll_hw_state {
379	/* i9xx, pch plls */	363	/* i9xx, pch plls */
380	uint32_t dpll;	364	uint32_t dpll;
381	uint32_t dpll_md;	365	uint32_t dpll_md;
382	uint32_t fp0;	366	uint32_t fp0;
383	uint32_t fp1;	367	uint32_t fp1;
384		368
385	/* hsw, bdw */	369	/* hsw, bdw */
386	uint32_t wrpll;	370	uint32_t wrpll;
387	uint32_t spll;	371	uint32_t spll;
388		372
389	/* skl */	373	/* skl */
390	/*	374	/*
391	* DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in	375	* DPLL_CTRL1 has 6 bits for each each this DPLL. We store those in
392	* lower part of ctrl1 and they get shifted into position when writing	376	* lower part of ctrl1 and they get shifted into position when writing
393	* the register. This allows us to easily compare the state to share	377	* the register. This allows us to easily compare the state to share
394	* the DPLL.	378	* the DPLL.
395	*/	379	*/
396	uint32_t ctrl1;	380	uint32_t ctrl1;
397	/* HDMI only, 0 when used for DP */	381	/* HDMI only, 0 when used for DP */
398	uint32_t cfgcr1, cfgcr2;	382	uint32_t cfgcr1, cfgcr2;
399		383
400	/* bxt */	384	/* bxt */
401	uint32_t ebb0, ebb4, pll0, pll1, pll2, pll3, pll6, pll8, pll9, pll10,	385	uint32_t ebb0, ebb4, pll0, pll1, pll2, pll3, pll6, pll8, pll9, pll10,
402	pcsdw12;	386	pcsdw12;
403	};	387	};
404		388
405	struct intel_shared_dpll_config {	389	struct intel_shared_dpll_config {
406	unsigned crtc_mask; /* mask of CRTCs sharing this PLL */	390	unsigned crtc_mask; /* mask of CRTCs sharing this PLL */
407	struct intel_dpll_hw_state hw_state;	391	struct intel_dpll_hw_state hw_state;
408	};	392	};
409		393
410	struct intel_shared_dpll {	394	struct intel_shared_dpll {
411	struct intel_shared_dpll_config config;	395	struct intel_shared_dpll_config config;
412		396
413	int active; /* count of number of active CRTCs (i.e. DPMS on) */	397	int active; /* count of number of active CRTCs (i.e. DPMS on) */
414	bool on; /* is the PLL actually active? Disabled during modeset */	398	bool on; /* is the PLL actually active? Disabled during modeset */
415	const char *name;	399	const char *name;
416	/* should match the index in the dev_priv->shared_dplls array */	400	/* should match the index in the dev_priv->shared_dplls array */
417	enum intel_dpll_id id;	401	enum intel_dpll_id id;
418	/* The mode_set hook is optional and should be used together with the	402	/* The mode_set hook is optional and should be used together with the
419	* intel_prepare_shared_dpll function. */	403	* intel_prepare_shared_dpll function. */
420	void (mode_set)(struct drm_i915_private dev_priv,	404	void (mode_set)(struct drm_i915_private dev_priv,
421	struct intel_shared_dpll *pll);	405	struct intel_shared_dpll *pll);
422	void (enable)(struct drm_i915_private dev_priv,	406	void (enable)(struct drm_i915_private dev_priv,
423	struct intel_shared_dpll *pll);	407	struct intel_shared_dpll *pll);
424	void (disable)(struct drm_i915_private dev_priv,	408	void (disable)(struct drm_i915_private dev_priv,
425	struct intel_shared_dpll *pll);	409	struct intel_shared_dpll *pll);
426	bool (get_hw_state)(struct drm_i915_private dev_priv,	410	bool (get_hw_state)(struct drm_i915_private dev_priv,
427	struct intel_shared_dpll *pll,	411	struct intel_shared_dpll *pll,
428	struct intel_dpll_hw_state *hw_state);	412	struct intel_dpll_hw_state *hw_state);
429	};	413	};
430		414
431	#define SKL_DPLL0 0	415	#define SKL_DPLL0 0
432	#define SKL_DPLL1 1	416	#define SKL_DPLL1 1
433	#define SKL_DPLL2 2	417	#define SKL_DPLL2 2
434	#define SKL_DPLL3 3	418	#define SKL_DPLL3 3
435		419
436	/* Used by dp and fdi links */	420	/* Used by dp and fdi links */
437	struct intel_link_m_n {	421	struct intel_link_m_n {
438	uint32_t tu;	422	uint32_t tu;
439	uint32_t gmch_m;	423	uint32_t gmch_m;
440	uint32_t gmch_n;	424	uint32_t gmch_n;
441	uint32_t link_m;	425	uint32_t link_m;
442	uint32_t link_n;	426	uint32_t link_n;
443	};	427	};
444		428
445	void intel_link_compute_m_n(int bpp, int nlanes,	429	void intel_link_compute_m_n(int bpp, int nlanes,
446	int pixel_clock, int link_clock,	430	int pixel_clock, int link_clock,
447	struct intel_link_m_n *m_n);	431	struct intel_link_m_n *m_n);
448		432
449	/* Interface history:	433	/* Interface history:
450	*	434	*
451	* 1.1: Original.	435	* 1.1: Original.
452	* 1.2: Add Power Management	436	* 1.2: Add Power Management
453	* 1.3: Add vblank support	437	* 1.3: Add vblank support
454	* 1.4: Fix cmdbuffer path, add heap destroy	438	* 1.4: Fix cmdbuffer path, add heap destroy
455	* 1.5: Add vblank pipe configuration	439	* 1.5: Add vblank pipe configuration
456	* 1.6: - New ioctl for scheduling buffer swaps on vertical blank	440	* 1.6: - New ioctl for scheduling buffer swaps on vertical blank
457	* - Support vertical blank on secondary display pipe	441	* - Support vertical blank on secondary display pipe
458	*/	442	*/
459	#define DRIVER_MAJOR 1	443	#define DRIVER_MAJOR 1
460	#define DRIVER_MINOR 6	444	#define DRIVER_MINOR 6
461	#define DRIVER_PATCHLEVEL 0	445	#define DRIVER_PATCHLEVEL 0
462		446
463	#define WATCH_LISTS 0	447	#define WATCH_LISTS 0
464		448
465	struct opregion_header;	449	struct opregion_header;
466	struct opregion_acpi;	450	struct opregion_acpi;
467	struct opregion_swsci;	451	struct opregion_swsci;
468	struct opregion_asle;	452	struct opregion_asle;
469		453
470	struct intel_opregion {	454	struct intel_opregion {
471	struct opregion_header *header;	455	struct opregion_header *header;
472	struct opregion_acpi *acpi;	456	struct opregion_acpi *acpi;
473	struct opregion_swsci *swsci;	457	struct opregion_swsci *swsci;
474	u32 swsci_gbda_sub_functions;	458	u32 swsci_gbda_sub_functions;
475	u32 swsci_sbcb_sub_functions;	459	u32 swsci_sbcb_sub_functions;
476	struct opregion_asle *asle;	460	struct opregion_asle *asle;
477	void *vbt;	461	void *rvda;
-		462	const void *vbt;
-		463	u32 vbt_size;
478	u32 *lid_state;	464	u32 *lid_state;
479	struct work_struct asle_work;	465	struct work_struct asle_work;
480	};	466	};
481	#define OPREGION_SIZE (8*1024)	467	#define OPREGION_SIZE (8*1024)
482		468
483	struct intel_overlay;	469	struct intel_overlay;
484	struct intel_overlay_error_state;	470	struct intel_overlay_error_state;
485		471
486	#define I915_FENCE_REG_NONE -1	472	#define I915_FENCE_REG_NONE -1
487	#define I915_MAX_NUM_FENCES 32	473	#define I915_MAX_NUM_FENCES 32
488	/* 32 fences + sign bit for FENCE_REG_NONE */	474	/* 32 fences + sign bit for FENCE_REG_NONE */
489	#define I915_MAX_NUM_FENCE_BITS 6	475	#define I915_MAX_NUM_FENCE_BITS 6
490		476
491	struct drm_i915_fence_reg {	477	struct drm_i915_fence_reg {
492	struct list_head lru_list;	478	struct list_head lru_list;
493	struct drm_i915_gem_object *obj;	479	struct drm_i915_gem_object *obj;
494	int pin_count;	480	int pin_count;
495	};	481	};
496		482

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/i915/i915_drv.h – Rev 6935 → 6937