/* 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; 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, .has_bsd_ring = 1, .has_blt_ring = 1, .has_llc = 1, .has_force_wake = 1, }; static const struct intel_device_info intel_ivybridge_d_info = { .is_ivybridge = 1, .gen = 7, .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_ivybridge_m_info = { .is_ivybridge = 1, .gen = 7, .is_mobile = 1, .need_gfx_hws = 1, .has_hotplug = 1, .has_fbc = 0, /* FBC is not enabled on Ivybridge mobile yet */ .has_bsd_ring = 1, .has_blt_ring = 1, .has_llc = 1, .has_force_wake = 1, }; static const struct intel_device_info intel_valleyview_m_info = { .gen = 7, .is_mobile = 1, .need_gfx_hws = 1, .has_hotplug = 1, .has_fbc = 0, .has_bsd_ring = 1, .has_blt_ring = 1, .is_valleyview = 1, }; static const struct intel_device_info intel_valleyview_d_info = { .gen = 7, .need_gfx_hws = 1, .has_hotplug = 1, .has_fbc = 0, .has_bsd_ring = 1, .has_blt_ring = 1, .is_valleyview = 1, }; static const struct intel_device_info intel_haswell_d_info = { .is_haswell = 1, .gen = 7, .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_haswell_m_info = { .is_haswell = 1, .gen = 7, .is_mobile = 1, .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 pci_device_id pciidlist[] = { /* aka */ INTEL_VGA_DEVICE(0x2582, &intel_i915g_info), /* I915_G */ INTEL_VGA_DEVICE(0x258a, &intel_i915g_info), /* E7221_G */ INTEL_VGA_DEVICE(0x2592, &intel_i915gm_info), /* I915_GM */ INTEL_VGA_DEVICE(0x2772, &intel_i945g_info), /* I945_G */ INTEL_VGA_DEVICE(0x27a2, &intel_i945gm_info), /* I945_GM */ INTEL_VGA_DEVICE(0x27ae, &intel_i945gm_info), /* I945_GME */ INTEL_VGA_DEVICE(0x2972, &intel_i965g_info), /* I946_GZ */ INTEL_VGA_DEVICE(0x2982, &intel_i965g_info), /* G35_G */ INTEL_VGA_DEVICE(0x2992, &intel_i965g_info), /* I965_Q */ INTEL_VGA_DEVICE(0x29a2, &intel_i965g_info), /* I965_G */ INTEL_VGA_DEVICE(0x29b2, &intel_g33_info), /* Q35_G */ INTEL_VGA_DEVICE(0x29c2, &intel_g33_info), /* G33_G */ INTEL_VGA_DEVICE(0x29d2, &intel_g33_info), /* Q33_G */ INTEL_VGA_DEVICE(0x2a02, &intel_i965gm_info), /* I965_GM */ INTEL_VGA_DEVICE(0x2a12, &intel_i965gm_info), /* I965_GME */ INTEL_VGA_DEVICE(0x2a42, &intel_gm45_info), /* GM45_G */ INTEL_VGA_DEVICE(0x2e02, &intel_g45_info), /* IGD_E_G */ INTEL_VGA_DEVICE(0x2e12, &intel_g45_info), /* Q45_G */ INTEL_VGA_DEVICE(0x2e22, &intel_g45_info), /* G45_G */ INTEL_VGA_DEVICE(0x2e32, &intel_g45_info), /* G41_G */ INTEL_VGA_DEVICE(0x2e42, &intel_g45_info), /* B43_G */ INTEL_VGA_DEVICE(0x2e92, &intel_g45_info), /* B43_G.1 */ INTEL_VGA_DEVICE(0xa001, &intel_pineview_info), INTEL_VGA_DEVICE(0xa011, &intel_pineview_info), INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info), INTEL_VGA_DEVICE(0x0046, &intel_ironlake_m_info), INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info), INTEL_VGA_DEVICE(0x0112, &intel_sandybridge_d_info), INTEL_VGA_DEVICE(0x0122, &intel_sandybridge_d_info), INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info), INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info), INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info), INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info), INTEL_VGA_DEVICE(0x0156, &intel_ivybridge_m_info), /* GT1 mobile */ INTEL_VGA_DEVICE(0x0166, &intel_ivybridge_m_info), /* GT2 mobile */ INTEL_VGA_DEVICE(0x0152, &intel_ivybridge_d_info), /* GT1 desktop */ INTEL_VGA_DEVICE(0x0162, &intel_ivybridge_d_info), /* GT2 desktop */ INTEL_VGA_DEVICE(0x015a, &intel_ivybridge_d_info), /* GT1 server */ INTEL_VGA_DEVICE(0x016a, &intel_ivybridge_d_info), /* GT2 server */ INTEL_VGA_DEVICE(0x0402, &intel_haswell_d_info), /* GT1 desktop */ INTEL_VGA_DEVICE(0x0412, &intel_haswell_d_info), /* GT2 desktop */ INTEL_VGA_DEVICE(0x0422, &intel_haswell_d_info), /* GT2 desktop */ INTEL_VGA_DEVICE(0x040a, &intel_haswell_d_info), /* GT1 server */ INTEL_VGA_DEVICE(0x041a, &intel_haswell_d_info), /* GT2 server */ INTEL_VGA_DEVICE(0x042a, &intel_haswell_d_info), /* GT2 server */ INTEL_VGA_DEVICE(0x0406, &intel_haswell_m_info), /* GT1 mobile */ INTEL_VGA_DEVICE(0x0416, &intel_haswell_m_info), /* GT2 mobile */ INTEL_VGA_DEVICE(0x0426, &intel_haswell_m_info), /* GT2 mobile */ INTEL_VGA_DEVICE(0x0C02, &intel_haswell_d_info), /* SDV GT1 desktop */ INTEL_VGA_DEVICE(0x0C12, &intel_haswell_d_info), /* SDV GT2 desktop */ INTEL_VGA_DEVICE(0x0C22, &intel_haswell_d_info), /* SDV GT2 desktop */ INTEL_VGA_DEVICE(0x0C0A, &intel_haswell_d_info), /* SDV GT1 server */ INTEL_VGA_DEVICE(0x0C1A, &intel_haswell_d_info), /* SDV GT2 server */ INTEL_VGA_DEVICE(0x0C2A, &intel_haswell_d_info), /* SDV GT2 server */ INTEL_VGA_DEVICE(0x0C06, &intel_haswell_m_info), /* SDV GT1 mobile */ INTEL_VGA_DEVICE(0x0C16, &intel_haswell_m_info), /* SDV GT2 mobile */ INTEL_VGA_DEVICE(0x0C26, &intel_haswell_m_info), /* SDV GT2 mobile */ INTEL_VGA_DEVICE(0x0A02, &intel_haswell_d_info), /* ULT GT1 desktop */ INTEL_VGA_DEVICE(0x0A12, &intel_haswell_d_info), /* ULT GT2 desktop */ INTEL_VGA_DEVICE(0x0A22, &intel_haswell_d_info), /* ULT GT2 desktop */ INTEL_VGA_DEVICE(0x0A0A, &intel_haswell_d_info), /* ULT GT1 server */ INTEL_VGA_DEVICE(0x0A1A, &intel_haswell_d_info), /* ULT GT2 server */ INTEL_VGA_DEVICE(0x0A2A, &intel_haswell_d_info), /* ULT GT2 server */ INTEL_VGA_DEVICE(0x0A06, &intel_haswell_m_info), /* ULT GT1 mobile */ INTEL_VGA_DEVICE(0x0A16, &intel_haswell_m_info), /* ULT GT2 mobile */ INTEL_VGA_DEVICE(0x0A26, &intel_haswell_m_info), /* ULT GT2 mobile */ INTEL_VGA_DEVICE(0x0D12, &intel_haswell_d_info), /* CRW GT1 desktop */ INTEL_VGA_DEVICE(0x0D22, &intel_haswell_d_info), /* CRW GT2 desktop */ INTEL_VGA_DEVICE(0x0D32, &intel_haswell_d_info), /* CRW GT2 desktop */ INTEL_VGA_DEVICE(0x0D1A, &intel_haswell_d_info), /* CRW GT1 server */ INTEL_VGA_DEVICE(0x0D2A, &intel_haswell_d_info), /* CRW GT2 server */ INTEL_VGA_DEVICE(0x0D3A, &intel_haswell_d_info), /* CRW GT2 server */ INTEL_VGA_DEVICE(0x0D16, &intel_haswell_m_info), /* CRW GT1 mobile */ INTEL_VGA_DEVICE(0x0D26, &intel_haswell_m_info), /* CRW GT2 mobile */ INTEL_VGA_DEVICE(0x0D36, &intel_haswell_m_info), /* CRW GT2 mobile */ INTEL_VGA_DEVICE(0x0f30, &intel_valleyview_m_info), INTEL_VGA_DEVICE(0x0157, &intel_valleyview_m_info), INTEL_VGA_DEVICE(0x0155, &intel_valleyview_d_info), {0, 0, 0} }; #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 void intel_detect_pch(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct pci_dev *pch; /* * The reason to probe ISA bridge instead of Dev31:Fun0 is to * make graphics device passthrough work easy for VMM, that only * need to expose ISA bridge to let driver know the real hardware * underneath. This is a requirement from virtualization team. */ pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL); if (pch) { if (pch->vendor == PCI_VENDOR_ID_INTEL) { int id; id = pch->device & INTEL_PCH_DEVICE_ID_MASK; if (id == INTEL_PCH_IBX_DEVICE_ID_TYPE) { dev_priv->pch_type = PCH_IBX; dev_priv->num_pch_pll = 2; DRM_DEBUG_KMS("Found Ibex Peak PCH\n"); } else if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) { dev_priv->pch_type = PCH_CPT; dev_priv->num_pch_pll = 2; DRM_DEBUG_KMS("Found CougarPoint PCH\n"); } else if (id == INTEL_PCH_PPT_DEVICE_ID_TYPE) { /* PantherPoint is CPT compatible */ dev_priv->pch_type = PCH_CPT; dev_priv->num_pch_pll = 2; DRM_DEBUG_KMS("Found PatherPoint PCH\n"); } else if (id == INTEL_PCH_LPT_DEVICE_ID_TYPE) { dev_priv->pch_type = PCH_LPT; dev_priv->num_pch_pll = 0; DRM_DEBUG_KMS("Found LynxPoint PCH\n"); } BUG_ON(dev_priv->num_pch_pll > I915_NUM_PLLS); } } } bool i915_semaphore_is_enabled(struct drm_device *dev) { if (INTEL_INFO(dev)->gen < 6) return 0; if (i915_semaphores >= 0) return i915_semaphores; #ifdef CONFIG_INTEL_IOMMU /* Enable semaphores on SNB when IO remapping is off */ if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped) return false; #endif return 1; } int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent); int i915_init(void) { static pci_dev_t device; const struct pci_device_id *ent; int err; ent = find_pci_device(&device, pciidlist); if( unlikely(ent == NULL) ) { dbgprintf("device not found\n"); return 0; }; struct intel_device_info *intel_info = (struct intel_device_info *) ent->driver_data; if (intel_info->is_haswell || intel_info->is_valleyview) if(!i915_preliminary_hw_support) { DRM_ERROR("Preliminary hardware support disabled\n"); return -ENODEV; } dbgprintf("device %x:%x\n", device.pci_dev.vendor, device.pci_dev.device); if (intel_info->gen != 3) { } else if (init_agp() != 0) { DRM_ERROR("drm/i915 can't work without intel_agp module!\n"); return -ENODEV; } err = drm_get_dev(&device.pci_dev, ent); return err; } int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent) { struct drm_device *dev; int ret; ENTER(); dev = kzalloc(sizeof(*dev), 0); if (!dev) return -ENOMEM; // ret = pci_enable_device(pdev); // if (ret) // goto err_g1; pci_set_master(pdev); // if ((ret = drm_fill_in_dev(dev, pdev, ent, driver))) { // printk(KERN_ERR "DRM: Fill_in_dev failed.\n"); // goto err_g2; // } dev->pdev = pdev; dev->pci_device = pdev->device; dev->pci_vendor = pdev->vendor; INIT_LIST_HEAD(&dev->filelist); INIT_LIST_HEAD(&dev->ctxlist); INIT_LIST_HEAD(&dev->vmalist); INIT_LIST_HEAD(&dev->maplist); spin_lock_init(&dev->count_lock); mutex_init(&dev->struct_mutex); mutex_init(&dev->ctxlist_mutex); ret = i915_driver_load(dev, ent->driver_data ); if (ret) goto err_g4; ret = init_display_kms(dev); if (ret) goto err_g4; LEAVE(); return 0; err_g4: // drm_put_minor(&dev->primary); //err_g3: // if (drm_core_check_feature(dev, DRIVER_MODESET)) // drm_put_minor(&dev->control); //err_g2: // pci_disable_device(pdev); //err_g1: free(dev); LEAVE(); return ret; } /* We give fast paths for the really cool registers */ #define NEEDS_FORCE_WAKE(dev_priv, reg) \ ((HAS_FORCE_WAKE((dev_priv)->dev)) && \ ((reg) < 0x40000) && \ ((reg) != FORCEWAKE)) static bool IS_DISPLAYREG(u32 reg) { /* * This should make it easier to transition modules over to the * new register block scheme, since we can do it incrementally. */ if (reg >= VLV_DISPLAY_BASE) return false; if (reg >= RENDER_RING_BASE && reg < RENDER_RING_BASE + 0xff) return false; if (reg >= GEN6_BSD_RING_BASE && reg < GEN6_BSD_RING_BASE + 0xff) return false; if (reg >= BLT_RING_BASE && reg < BLT_RING_BASE + 0xff) return false; if (reg == PGTBL_ER) return false; if (reg >= IPEIR_I965 && reg < HWSTAM) return false; if (reg == MI_MODE) return false; if (reg == GFX_MODE_GEN7) return false; if (reg == RENDER_HWS_PGA_GEN7 || reg == BSD_HWS_PGA_GEN7 || reg == BLT_HWS_PGA_GEN7) return false; if (reg == GEN6_BSD_SLEEP_PSMI_CONTROL || reg == GEN6_BSD_RNCID) return false; if (reg == GEN6_BLITTER_ECOSKPD) return false; if (reg >= 0x4000c && reg <= 0x4002c) return false; if (reg >= 0x4f000 && reg <= 0x4f08f) return false; if (reg >= 0x4f100 && reg <= 0x4f11f) return false; if (reg >= VLV_MASTER_IER && reg <= GEN6_PMIER) return false; if (reg >= FENCE_REG_SANDYBRIDGE_0 && reg < (FENCE_REG_SANDYBRIDGE_0 + (16*8))) return false; if (reg >= VLV_IIR_RW && reg <= VLV_ISR) return false; if (reg == FORCEWAKE_VLV || reg == FORCEWAKE_ACK_VLV) return false; if (reg == GEN6_GDRST) return false; return true; } #define __i915_read(x, y) \ u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \ u##x val = 0; \ if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \ unsigned long irqflags; \ spin_lock_irqsave(&dev_priv->gt_lock, irqflags); \ if (dev_priv->forcewake_count == 0) \ dev_priv->gt.force_wake_get(dev_priv); \ val = read##y(dev_priv->regs + reg); \ if (dev_priv->forcewake_count == 0) \ dev_priv->gt.force_wake_put(dev_priv); \ spin_unlock_irqrestore(&dev_priv->gt_lock, irqflags); \ } else if (IS_VALLEYVIEW(dev_priv->dev) && IS_DISPLAYREG(reg)) { \ val = read##y(dev_priv->regs + reg + 0x180000); \ } else { \ val = read##y(dev_priv->regs + reg); \ } \ return val; \ } __i915_read(8, b) __i915_read(16, w) __i915_read(32, l) __i915_read(64, q) #undef __i915_read #define __i915_write(x, y) \ void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \ if (NEEDS_FORCE_WAKE((dev_priv), (reg))) { \ __gen6_gt_wait_for_fifo(dev_priv); \ } \ write##y(val, dev_priv->regs + reg); \ } __i915_write(8, b) __i915_write(16, w) __i915_write(32, l) __i915_write(64, q) #undef __i915_write