632 lines
18 KiB
C
632 lines
18 KiB
C
/* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
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*/
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/*
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*
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* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <linux/device.h>
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#include "drmP.h"
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#include "drm.h"
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#include "i915_drm.h"
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#include "i915_drv.h"
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#include <linux/console.h>
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#include "drm_crtc_helper.h"
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static int i915_modeset = -1;
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module_param_named(modeset, i915_modeset, int, 0400);
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unsigned int i915_fbpercrtc = 0;
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module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
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unsigned int i915_powersave = 1;
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module_param_named(powersave, i915_powersave, int, 0400);
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unsigned int i915_lvds_downclock = 0;
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module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
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static struct drm_driver driver;
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extern int intel_agp_enabled;
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#define INTEL_VGA_DEVICE(id, info) { \
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.class = PCI_CLASS_DISPLAY_VGA << 8, \
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.class_mask = 0xffff00, \
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.vendor = 0x8086, \
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.device = id, \
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.subvendor = PCI_ANY_ID, \
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.subdevice = PCI_ANY_ID, \
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.driver_data = (unsigned long) info }
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static const struct intel_device_info intel_i830_info = {
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.gen = 2, .is_i8xx = 1, .is_mobile = 1, .cursor_needs_physical = 1,
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.has_overlay = 1, .overlay_needs_physical = 1,
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};
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static const struct intel_device_info intel_845g_info = {
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.gen = 2, .is_i8xx = 1,
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.has_overlay = 1, .overlay_needs_physical = 1,
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};
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static const struct intel_device_info intel_i85x_info = {
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.gen = 2, .is_i8xx = 1, .is_i85x = 1, .is_mobile = 1,
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.cursor_needs_physical = 1,
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.has_overlay = 1, .overlay_needs_physical = 1,
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};
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static const struct intel_device_info intel_i865g_info = {
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.gen = 2, .is_i8xx = 1,
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.has_overlay = 1, .overlay_needs_physical = 1,
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};
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static const struct intel_device_info intel_i915g_info = {
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.gen = 3, .is_i915g = 1, .is_i9xx = 1, .cursor_needs_physical = 1,
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.has_overlay = 1, .overlay_needs_physical = 1,
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};
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static const struct intel_device_info intel_i915gm_info = {
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.gen = 3, .is_i9xx = 1, .is_mobile = 1,
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.cursor_needs_physical = 1,
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.has_overlay = 1, .overlay_needs_physical = 1,
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};
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static const struct intel_device_info intel_i945g_info = {
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.gen = 3, .is_i9xx = 1, .has_hotplug = 1, .cursor_needs_physical = 1,
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.has_overlay = 1, .overlay_needs_physical = 1,
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};
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static const struct intel_device_info intel_i945gm_info = {
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.gen = 3, .is_i945gm = 1, .is_i9xx = 1, .is_mobile = 1,
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.has_hotplug = 1, .cursor_needs_physical = 1,
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.has_overlay = 1, .overlay_needs_physical = 1,
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};
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static const struct intel_device_info intel_i965g_info = {
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.gen = 4, .is_broadwater = 1, .is_i965g = 1, .is_i9xx = 1,
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.has_hotplug = 1,
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.has_overlay = 1,
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};
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static const struct intel_device_info intel_i965gm_info = {
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.gen = 4, .is_crestline = 1, .is_i965g = 1, .is_i965gm = 1, .is_i9xx = 1,
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.is_mobile = 1, .has_fbc = 1, .has_rc6 = 1, .has_hotplug = 1,
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.has_overlay = 1,
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};
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static const struct intel_device_info intel_g33_info = {
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.gen = 3, .is_g33 = 1, .is_i9xx = 1,
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.need_gfx_hws = 1, .has_hotplug = 1,
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.has_overlay = 1,
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};
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static const struct intel_device_info intel_g45_info = {
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.gen = 4, .is_i965g = 1, .is_g4x = 1, .is_i9xx = 1, .need_gfx_hws = 1,
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.has_pipe_cxsr = 1, .has_hotplug = 1,
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};
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static const struct intel_device_info intel_gm45_info = {
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.gen = 4, .is_i965g = 1, .is_g4x = 1, .is_i9xx = 1,
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.is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1,
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.has_pipe_cxsr = 1, .has_hotplug = 1,
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};
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static const struct intel_device_info intel_pineview_info = {
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.gen = 3, .is_g33 = 1, .is_pineview = 1, .is_mobile = 1, .is_i9xx = 1,
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.need_gfx_hws = 1, .has_hotplug = 1,
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.has_overlay = 1,
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};
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static const struct intel_device_info intel_ironlake_d_info = {
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.gen = 5, .is_ironlake = 1, .is_i965g = 1, .is_i9xx = 1,
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.need_gfx_hws = 1, .has_pipe_cxsr = 1, .has_hotplug = 1,
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};
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static const struct intel_device_info intel_ironlake_m_info = {
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.gen = 5, .is_ironlake = 1, .is_mobile = 1, .is_i965g = 1, .is_i9xx = 1,
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.need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1, .has_hotplug = 1,
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};
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static const struct intel_device_info intel_sandybridge_d_info = {
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.gen = 6, .is_i965g = 1, .is_i9xx = 1,
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.need_gfx_hws = 1, .has_hotplug = 1,
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};
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static const struct intel_device_info intel_sandybridge_m_info = {
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.gen = 6, .is_i965g = 1, .is_mobile = 1, .is_i9xx = 1,
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.need_gfx_hws = 1, .has_hotplug = 1,
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};
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static const struct pci_device_id pciidlist[] = { /* aka */
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INTEL_VGA_DEVICE(0x3577, &intel_i830_info), /* I830_M */
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INTEL_VGA_DEVICE(0x2562, &intel_845g_info), /* 845_G */
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INTEL_VGA_DEVICE(0x3582, &intel_i85x_info), /* I855_GM */
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INTEL_VGA_DEVICE(0x358e, &intel_i85x_info),
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INTEL_VGA_DEVICE(0x2572, &intel_i865g_info), /* I865_G */
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INTEL_VGA_DEVICE(0x2582, &intel_i915g_info), /* I915_G */
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INTEL_VGA_DEVICE(0x258a, &intel_i915g_info), /* E7221_G */
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INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info), /* I915_GM */
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INTEL_VGA_DEVICE(0x2772, &intel_i945g_info), /* I945_G */
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INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info), /* I945_GM */
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INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info), /* I945_GME */
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INTEL_VGA_DEVICE(0x2972, &intel_i965g_info), /* I946_GZ */
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INTEL_VGA_DEVICE(0x2982, &intel_i965g_info), /* G35_G */
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INTEL_VGA_DEVICE(0x2992, &intel_i965g_info), /* I965_Q */
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INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info), /* I965_G */
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INTEL_VGA_DEVICE(0x29b2, &intel_g33_info), /* Q35_G */
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INTEL_VGA_DEVICE(0x29c2, &intel_g33_info), /* G33_G */
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INTEL_VGA_DEVICE(0x29d2, &intel_g33_info), /* Q33_G */
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INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info), /* I965_GM */
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INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info), /* I965_GME */
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INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info), /* GM45_G */
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INTEL_VGA_DEVICE(0x2e02, &intel_g45_info), /* IGD_E_G */
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INTEL_VGA_DEVICE(0x2e12, &intel_g45_info), /* Q45_G */
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INTEL_VGA_DEVICE(0x2e22, &intel_g45_info), /* G45_G */
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INTEL_VGA_DEVICE(0x2e32, &intel_g45_info), /* G41_G */
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INTEL_VGA_DEVICE(0x2e42, &intel_g45_info), /* B43_G */
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INTEL_VGA_DEVICE(0x2e92, &intel_g45_info), /* B43_G.1 */
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INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
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INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
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INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
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INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info),
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INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info),
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INTEL_VGA_DEVICE(0x0112, &intel_sandybridge_d_info),
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INTEL_VGA_DEVICE(0x0122, &intel_sandybridge_d_info),
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INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info),
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INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info),
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INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info),
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INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info),
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{0, 0, 0}
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};
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#if defined(CONFIG_DRM_I915_KMS)
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MODULE_DEVICE_TABLE(pci, pciidlist);
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#endif
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#define INTEL_PCH_DEVICE_ID_MASK 0xff00
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#define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
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void intel_detect_pch (struct drm_device *dev)
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{
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struct drm_i915_private *dev_priv = dev->dev_private;
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struct pci_dev *pch;
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/*
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* The reason to probe ISA bridge instead of Dev31:Fun0 is to
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* make graphics device passthrough work easy for VMM, that only
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* need to expose ISA bridge to let driver know the real hardware
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* underneath. This is a requirement from virtualization team.
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*/
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pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL);
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if (pch) {
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if (pch->vendor == PCI_VENDOR_ID_INTEL) {
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int id;
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id = pch->device & INTEL_PCH_DEVICE_ID_MASK;
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if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) {
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dev_priv->pch_type = PCH_CPT;
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DRM_DEBUG_KMS("Found CougarPoint PCH\n");
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}
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}
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pci_dev_put(pch);
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}
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}
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static int i915_drm_freeze(struct drm_device *dev)
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{
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struct drm_i915_private *dev_priv = dev->dev_private;
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pci_save_state(dev->pdev);
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/* If KMS is active, we do the leavevt stuff here */
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if (drm_core_check_feature(dev, DRIVER_MODESET)) {
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int error = i915_gem_idle(dev);
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if (error) {
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dev_err(&dev->pdev->dev,
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"GEM idle failed, resume might fail\n");
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return error;
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}
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drm_irq_uninstall(dev);
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}
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i915_save_state(dev);
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intel_opregion_fini(dev);
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/* Modeset on resume, not lid events */
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dev_priv->modeset_on_lid = 0;
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return 0;
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}
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int i915_suspend(struct drm_device *dev, pm_message_t state)
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{
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int error;
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if (!dev || !dev->dev_private) {
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DRM_ERROR("dev: %p\n", dev);
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DRM_ERROR("DRM not initialized, aborting suspend.\n");
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return -ENODEV;
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}
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if (state.event == PM_EVENT_PRETHAW)
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return 0;
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error = i915_drm_freeze(dev);
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if (error)
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return error;
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if (state.event == PM_EVENT_SUSPEND) {
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/* Shut down the device */
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pci_disable_device(dev->pdev);
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pci_set_power_state(dev->pdev, PCI_D3hot);
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}
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return 0;
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}
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static int i915_drm_thaw(struct drm_device *dev)
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{
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struct drm_i915_private *dev_priv = dev->dev_private;
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int error = 0;
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i915_restore_state(dev);
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intel_opregion_setup(dev);
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/* KMS EnterVT equivalent */
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if (drm_core_check_feature(dev, DRIVER_MODESET)) {
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mutex_lock(&dev->struct_mutex);
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dev_priv->mm.suspended = 0;
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error = i915_gem_init_ringbuffer(dev);
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mutex_unlock(&dev->struct_mutex);
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drm_irq_install(dev);
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/* Resume the modeset for every activated CRTC */
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drm_helper_resume_force_mode(dev);
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}
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intel_opregion_init(dev);
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dev_priv->modeset_on_lid = 0;
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return error;
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}
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int i915_resume(struct drm_device *dev)
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{
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if (pci_enable_device(dev->pdev))
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return -EIO;
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pci_set_master(dev->pdev);
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return i915_drm_thaw(dev);
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}
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/**
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* i965_reset - reset chip after a hang
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* @dev: drm device to reset
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* @flags: reset domains
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*
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* Reset the chip. Useful if a hang is detected. Returns zero on successful
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* reset or otherwise an error code.
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*
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* Procedure is fairly simple:
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* - reset the chip using the reset reg
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* - re-init context state
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* - re-init hardware status page
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* - re-init ring buffer
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* - re-init interrupt state
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* - re-init display
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*/
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int i965_reset(struct drm_device *dev, u8 flags)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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unsigned long timeout;
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u8 gdrst;
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/*
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* We really should only reset the display subsystem if we actually
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* need to
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*/
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bool need_display = true;
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mutex_lock(&dev->struct_mutex);
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/*
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* Clear request list
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*/
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i915_gem_retire_requests(dev);
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if (need_display)
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i915_save_display(dev);
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if (IS_I965G(dev) || IS_G4X(dev)) {
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/*
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* Set the domains we want to reset, then the reset bit (bit 0).
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* Clear the reset bit after a while and wait for hardware status
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* bit (bit 1) to be set
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*/
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pci_read_config_byte(dev->pdev, GDRST, &gdrst);
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pci_write_config_byte(dev->pdev, GDRST, gdrst | flags | ((flags == GDRST_FULL) ? 0x1 : 0x0));
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udelay(50);
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pci_write_config_byte(dev->pdev, GDRST, gdrst & 0xfe);
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/* ...we don't want to loop forever though, 500ms should be plenty */
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timeout = jiffies + msecs_to_jiffies(500);
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do {
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udelay(100);
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pci_read_config_byte(dev->pdev, GDRST, &gdrst);
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} while ((gdrst & 0x1) && time_after(timeout, jiffies));
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if (gdrst & 0x1) {
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WARN(true, "i915: Failed to reset chip\n");
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mutex_unlock(&dev->struct_mutex);
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return -EIO;
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}
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} else {
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DRM_ERROR("Error occurred. Don't know how to reset this chip.\n");
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mutex_unlock(&dev->struct_mutex);
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return -ENODEV;
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}
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/* Ok, now get things going again... */
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/*
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* Everything depends on having the GTT running, so we need to start
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* there. Fortunately we don't need to do this unless we reset the
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* chip at a PCI level.
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*
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* Next we need to restore the context, but we don't use those
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* yet either...
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*
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* Ring buffer needs to be re-initialized in the KMS case, or if X
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* was running at the time of the reset (i.e. we weren't VT
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* switched away).
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*/
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if (drm_core_check_feature(dev, DRIVER_MODESET) ||
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!dev_priv->mm.suspended) {
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struct intel_ring_buffer *ring = &dev_priv->render_ring;
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dev_priv->mm.suspended = 0;
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ring->init(dev, ring);
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mutex_unlock(&dev->struct_mutex);
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drm_irq_uninstall(dev);
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drm_irq_install(dev);
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mutex_lock(&dev->struct_mutex);
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}
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/*
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* Display needs restore too...
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*/
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if (need_display)
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i915_restore_display(dev);
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mutex_unlock(&dev->struct_mutex);
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return 0;
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}
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static int __devinit
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i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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{
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return drm_get_pci_dev(pdev, ent, &driver);
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}
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static void
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i915_pci_remove(struct pci_dev *pdev)
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{
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struct drm_device *dev = pci_get_drvdata(pdev);
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drm_put_dev(dev);
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}
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static int i915_pm_suspend(struct device *dev)
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{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct drm_device *drm_dev = pci_get_drvdata(pdev);
|
|
int error;
|
|
|
|
if (!drm_dev || !drm_dev->dev_private) {
|
|
dev_err(dev, "DRM not initialized, aborting suspend.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
error = i915_drm_freeze(drm_dev);
|
|
if (error)
|
|
return error;
|
|
|
|
pci_disable_device(pdev);
|
|
pci_set_power_state(pdev, PCI_D3hot);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i915_pm_resume(struct device *dev)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct drm_device *drm_dev = pci_get_drvdata(pdev);
|
|
|
|
return i915_resume(drm_dev);
|
|
}
|
|
|
|
static int i915_pm_freeze(struct device *dev)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct drm_device *drm_dev = pci_get_drvdata(pdev);
|
|
|
|
if (!drm_dev || !drm_dev->dev_private) {
|
|
dev_err(dev, "DRM not initialized, aborting suspend.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
return i915_drm_freeze(drm_dev);
|
|
}
|
|
|
|
static int i915_pm_thaw(struct device *dev)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct drm_device *drm_dev = pci_get_drvdata(pdev);
|
|
|
|
return i915_drm_thaw(drm_dev);
|
|
}
|
|
|
|
static int i915_pm_poweroff(struct device *dev)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(dev);
|
|
struct drm_device *drm_dev = pci_get_drvdata(pdev);
|
|
|
|
return i915_drm_freeze(drm_dev);
|
|
}
|
|
|
|
static const struct dev_pm_ops i915_pm_ops = {
|
|
.suspend = i915_pm_suspend,
|
|
.resume = i915_pm_resume,
|
|
.freeze = i915_pm_freeze,
|
|
.thaw = i915_pm_thaw,
|
|
.poweroff = i915_pm_poweroff,
|
|
.restore = i915_pm_resume,
|
|
};
|
|
|
|
static struct vm_operations_struct i915_gem_vm_ops = {
|
|
.fault = i915_gem_fault,
|
|
.open = drm_gem_vm_open,
|
|
.close = drm_gem_vm_close,
|
|
};
|
|
|
|
static struct drm_driver driver = {
|
|
/* don't use mtrr's here, the Xserver or user space app should
|
|
* deal with them for intel hardware.
|
|
*/
|
|
.driver_features =
|
|
DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
|
|
DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
|
|
.load = i915_driver_load,
|
|
.unload = i915_driver_unload,
|
|
.open = i915_driver_open,
|
|
.lastclose = i915_driver_lastclose,
|
|
.preclose = i915_driver_preclose,
|
|
.postclose = i915_driver_postclose,
|
|
|
|
/* Used in place of i915_pm_ops for non-DRIVER_MODESET */
|
|
.suspend = i915_suspend,
|
|
.resume = i915_resume,
|
|
|
|
.device_is_agp = i915_driver_device_is_agp,
|
|
.enable_vblank = i915_enable_vblank,
|
|
.disable_vblank = i915_disable_vblank,
|
|
.irq_preinstall = i915_driver_irq_preinstall,
|
|
.irq_postinstall = i915_driver_irq_postinstall,
|
|
.irq_uninstall = i915_driver_irq_uninstall,
|
|
.irq_handler = i915_driver_irq_handler,
|
|
.reclaim_buffers = drm_core_reclaim_buffers,
|
|
.master_create = i915_master_create,
|
|
.master_destroy = i915_master_destroy,
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
.debugfs_init = i915_debugfs_init,
|
|
.debugfs_cleanup = i915_debugfs_cleanup,
|
|
#endif
|
|
.gem_init_object = i915_gem_init_object,
|
|
.gem_free_object = i915_gem_free_object,
|
|
.gem_vm_ops = &i915_gem_vm_ops,
|
|
.ioctls = i915_ioctls,
|
|
.fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = drm_open,
|
|
.release = drm_release,
|
|
.unlocked_ioctl = drm_ioctl,
|
|
.mmap = drm_gem_mmap,
|
|
.poll = drm_poll,
|
|
.fasync = drm_fasync,
|
|
.read = drm_read,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl = i915_compat_ioctl,
|
|
#endif
|
|
},
|
|
|
|
.pci_driver = {
|
|
.name = DRIVER_NAME,
|
|
.id_table = pciidlist,
|
|
.probe = i915_pci_probe,
|
|
.remove = i915_pci_remove,
|
|
.driver.pm = &i915_pm_ops,
|
|
},
|
|
|
|
.name = DRIVER_NAME,
|
|
.desc = DRIVER_DESC,
|
|
.date = DRIVER_DATE,
|
|
.major = DRIVER_MAJOR,
|
|
.minor = DRIVER_MINOR,
|
|
.patchlevel = DRIVER_PATCHLEVEL,
|
|
};
|
|
|
|
static int __init i915_init(void)
|
|
{
|
|
if (!intel_agp_enabled) {
|
|
DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
driver.num_ioctls = i915_max_ioctl;
|
|
|
|
i915_gem_shrinker_init();
|
|
|
|
/*
|
|
* If CONFIG_DRM_I915_KMS is set, default to KMS unless
|
|
* explicitly disabled with the module pararmeter.
|
|
*
|
|
* Otherwise, just follow the parameter (defaulting to off).
|
|
*
|
|
* Allow optional vga_text_mode_force boot option to override
|
|
* the default behavior.
|
|
*/
|
|
#if defined(CONFIG_DRM_I915_KMS)
|
|
if (i915_modeset != 0)
|
|
driver.driver_features |= DRIVER_MODESET;
|
|
#endif
|
|
if (i915_modeset == 1)
|
|
driver.driver_features |= DRIVER_MODESET;
|
|
|
|
#ifdef CONFIG_VGA_CONSOLE
|
|
if (vgacon_text_force() && i915_modeset == -1)
|
|
driver.driver_features &= ~DRIVER_MODESET;
|
|
#endif
|
|
|
|
if (!(driver.driver_features & DRIVER_MODESET)) {
|
|
driver.suspend = i915_suspend;
|
|
driver.resume = i915_resume;
|
|
}
|
|
|
|
return drm_init(&driver);
|
|
}
|
|
|
|
static void __exit i915_exit(void)
|
|
{
|
|
i915_gem_shrinker_exit();
|
|
drm_exit(&driver);
|
|
}
|
|
|
|
module_init(i915_init);
|
|
module_exit(i915_exit);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL and additional rights");
|