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/* i915_drv.c -- i830,i845,i855,i865,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.

 *

 */

//#include 

#include 

#include 

#include "i915_drv.h"

#include "intel_drv.h"

#include 

#include 

#include 

#include 

#include 

#include 

#include 

#define __read_mostly

int init_display_kms(struct drm_device *dev);

struct drm_device *main_device;

struct drm_file *drm_file_handlers[256];

static int i915_modeset __read_mostly = 1;

MODULE_PARM_DESC(modeset,

		"Use kernel modesetting [KMS] (0=DRM_I915_KMS from .config, "

		"1=on, -1=force vga console preference [default])");

int i915_panel_ignore_lid __read_mostly         =  0;

MODULE_PARM_DESC(panel_ignore_lid,

		"Override lid status (0=autodetect [default], 1=lid open, "

		"-1=lid closed)");

unsigned int i915_powersave  __read_mostly      =  0;

MODULE_PARM_DESC(powersave,

		"Enable powersavings, fbc, downclocking, etc. (default: true)");

int i915_semaphores __read_mostly = -1;

MODULE_PARM_DESC(semaphores,

		"Use semaphores for inter-ring sync (default: -1 (use per-chip defaults))");

int i915_enable_rc6 __read_mostly      = 0;

MODULE_PARM_DESC(i915_enable_rc6,

		"Enable power-saving render C-state 6. "

		"Different stages can be selected via bitmask values "

		"(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). "

		"For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. "

		"default: -1 (use per-chip default)");

int i915_enable_fbc __read_mostly      =  0;

MODULE_PARM_DESC(i915_enable_fbc,

		"Enable frame buffer compression for power savings "

		"(default: -1 (use per-chip default))");

unsigned int i915_lvds_downclock  __read_mostly =  0;

MODULE_PARM_DESC(lvds_downclock,

		"Use panel (LVDS/eDP) downclocking for power savings "

		"(default: false)");

int i915_lvds_channel_mode __read_mostly;

MODULE_PARM_DESC(lvds_channel_mode,

		 "Specify LVDS channel mode "

		 "(0=probe BIOS [default], 1=single-channel, 2=dual-channel)");

int i915_panel_use_ssc __read_mostly = -1;

MODULE_PARM_DESC(lvds_use_ssc,

		"Use Spread Spectrum Clock with panels [LVDS/eDP] "

		"(default: auto from VBT)");

int i915_vbt_sdvo_panel_type __read_mostly      = -1;

MODULE_PARM_DESC(vbt_sdvo_panel_type,

		"Override/Ignore selection of SDVO panel mode in the VBT "

		"(-2=ignore, -1=auto [default], index in VBT BIOS table)");

static bool i915_try_reset __read_mostly = true;

MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");

bool i915_enable_hangcheck __read_mostly = false;

MODULE_PARM_DESC(enable_hangcheck,

		"Periodically check GPU activity for detecting hangs. "

		"WARNING: Disabling this can cause system wide hangs. "

		"(default: true)");

int i915_enable_ppgtt __read_mostly = false;

MODULE_PARM_DESC(i915_enable_ppgtt,

		"Enable PPGTT (default: true)");

unsigned int i915_preliminary_hw_support __read_mostly = true;

MODULE_PARM_DESC(preliminary_hw_support,

		"Enable preliminary hardware support. "

		"Enable Haswell and ValleyView Support. "

		"(default: false)");

#define PCI_VENDOR_ID_INTEL        0x8086

#define INTEL_VGA_DEVICE(id, info) {        \

	.class = PCI_BASE_CLASS_DISPLAY << 16,	\

    .class_mask = 0xff0000,                 \

    .vendor = 0x8086,                       \

    .device = id,                           \

    .subvendor = PCI_ANY_ID,                \

    .subdevice = PCI_ANY_ID,                \

    .driver_data = (unsigned long) info }

static const struct intel_device_info intel_i915g_info = {

	.gen = 3, .is_i915g = 1, .cursor_needs_physical = 1,

	.has_overlay = 1, .overlay_needs_physical = 1,

};

static const struct intel_device_info intel_i915gm_info = {

	.gen = 3, .is_mobile = 1,

	.cursor_needs_physical = 1,

	.has_overlay = 1, .overlay_needs_physical = 1,

	.supports_tv = 1,

};

static const struct intel_device_info intel_i945g_info = {

	.gen = 3, .has_hotplug = 1, .cursor_needs_physical = 1,

	.has_overlay = 1, .overlay_needs_physical = 1,

};

static const struct intel_device_info intel_i945gm_info = {

	.gen = 3, .is_i945gm = 1, .is_mobile = 1,

	.has_hotplug = 1, .cursor_needs_physical = 1,

	.has_overlay = 1, .overlay_needs_physical = 1,

	.supports_tv = 1,

};

static const struct intel_device_info intel_i965g_info = {

	.gen = 4, .is_broadwater = 1,

	.has_hotplug = 1,

	.has_overlay = 1,

};

static const struct intel_device_info intel_i965gm_info = {

	.gen = 4, .is_crestline = 1,

	.is_mobile = 1, .has_fbc = 1, .has_hotplug = 1,

	.has_overlay = 1,

	.supports_tv = 1,

};

static const struct intel_device_info intel_g33_info = {

	.gen = 3, .is_g33 = 1,

	.need_gfx_hws = 1, .has_hotplug = 1,

	.has_overlay = 1,

};

static const struct intel_device_info intel_g45_info = {

	.gen = 4, .is_g4x = 1, .need_gfx_hws = 1,

	.has_pipe_cxsr = 1, .has_hotplug = 1,

	.has_bsd_ring = 1,

};

static const struct intel_device_info intel_gm45_info = {

	.gen = 4, .is_g4x = 1,

	.is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1,

	.has_pipe_cxsr = 1, .has_hotplug = 1,

	.supports_tv = 1,

	.has_bsd_ring = 1,

};

static const struct intel_device_info intel_pineview_info = {

	.gen = 3, .is_g33 = 1, .is_pineview = 1, .is_mobile = 1,

	.need_gfx_hws = 1, .has_hotplug = 1,

	.has_overlay = 1,

};

static const struct intel_device_info intel_ironlake_d_info = {

	.gen = 5,

	.need_gfx_hws = 1, .has_hotplug = 1,

	.has_bsd_ring = 1,

};

static const struct intel_device_info intel_ironlake_m_info = {

	.gen = 5, .is_mobile = 1,

	.need_gfx_hws = 1, .has_hotplug = 1,

	.has_fbc = 1,

	.has_bsd_ring = 1,

};

static const struct intel_device_info intel_sandybridge_d_info = {

    .gen = 6,

	.need_gfx_hws = 1, .has_hotplug = 1,

    .has_bsd_ring = 1,

    .has_blt_ring = 1,

	.has_llc = 1,

	.has_force_wake = 1,

};

static const struct intel_device_info intel_sandybridge_m_info = {

	.gen = 6, .is_mobile = 1,

	.need_gfx_hws = 1, .has_hotplug = 1,

    .has_fbc      = 1,