/* i915_dma.c -- DMA support for the I915 -*- 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. * */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include #include #include #include #include "intel_drv.h" #include #include "i915_drv.h" #include "i915_vgpu.h" #include "i915_trace.h" #include #include #include #include #include #include #include #include #include #include #include #include static unsigned int i915_load_fail_count; bool __i915_inject_load_failure(const char *func, int line) { if (i915_load_fail_count >= i915.inject_load_failure) return false; if (++i915_load_fail_count == i915.inject_load_failure) { DRM_INFO("Injecting failure at checkpoint %u [%s:%d]\n", i915.inject_load_failure, func, line); return true; } return false; } #define FDO_BUG_URL "https://bugs.freedesktop.org/enter_bug.cgi?product=DRI" #define FDO_BUG_MSG "Please file a bug at " FDO_BUG_URL " against DRM/Intel " \ "providing the dmesg log by booting with drm.debug=0xf" void __i915_printk(struct drm_i915_private *dev_priv, const char *level, const char *fmt, ...) { static bool shown_bug_once; struct device *dev = dev_priv->dev->dev; bool is_error = level[1] <= KERN_ERR[1]; bool is_debug = level[1] == KERN_DEBUG[1]; struct va_format vaf; va_list args; if (is_debug && !(drm_debug & DRM_UT_DRIVER)) return; va_start(args, fmt); vaf.fmt = fmt; vaf.va = &args; dev_printk(level, dev, "[" DRM_NAME ":%ps] %pV", __builtin_return_address(0), &vaf); if (is_error && !shown_bug_once) { dev_notice(dev, "%s", FDO_BUG_MSG); shown_bug_once = true; } va_end(args); } static bool i915_error_injected(struct drm_i915_private *dev_priv) { return i915.inject_load_failure && i915_load_fail_count == i915.inject_load_failure; } #define i915_load_error(dev_priv, fmt, ...) \ __i915_printk(dev_priv, \ i915_error_injected(dev_priv) ? KERN_DEBUG : KERN_ERR, \ fmt, ##__VA_ARGS__) static int i915_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_i915_private *dev_priv = dev->dev_private; drm_i915_getparam_t *param = data; int value; switch (param->param) { case I915_PARAM_IRQ_ACTIVE: case I915_PARAM_ALLOW_BATCHBUFFER: case I915_PARAM_LAST_DISPATCH: /* Reject all old ums/dri params. */ return -ENODEV; case I915_PARAM_CHIPSET_ID: value = dev->pdev->device; break; case I915_PARAM_REVISION: value = dev->pdev->revision; break; case I915_PARAM_HAS_GEM: value = 1; break; case I915_PARAM_NUM_FENCES_AVAIL: value = dev_priv->num_fence_regs; break; case I915_PARAM_HAS_OVERLAY: value = dev_priv->overlay ? 1 : 0; break; case I915_PARAM_HAS_PAGEFLIPPING: value = 1; break; case I915_PARAM_HAS_EXECBUF2: /* depends on GEM */ value = 1; break; case I915_PARAM_HAS_BSD: value = intel_engine_initialized(&dev_priv->engine[VCS]); break; case I915_PARAM_HAS_BLT: value = intel_engine_initialized(&dev_priv->engine[BCS]); break; case I915_PARAM_HAS_VEBOX: value = intel_engine_initialized(&dev_priv->engine[VECS]); break; case I915_PARAM_HAS_BSD2: value = intel_engine_initialized(&dev_priv->engine[VCS2]); break; case I915_PARAM_HAS_RELAXED_FENCING: value = 1; break; case I915_PARAM_HAS_COHERENT_RINGS: value = 1; break; case I915_PARAM_HAS_EXEC_CONSTANTS: value = INTEL_INFO(dev)->gen >= 4; break; case I915_PARAM_HAS_RELAXED_DELTA: value = 1; break; case I915_PARAM_HAS_GEN7_SOL_RESET: value = 1; break; case I915_PARAM_HAS_LLC: value = HAS_LLC(dev); break; case I915_PARAM_HAS_WT: value = HAS_WT(dev); break; case I915_PARAM_HAS_ALIASING_PPGTT: value = USES_PPGTT(dev); break; case I915_PARAM_HAS_WAIT_TIMEOUT: value = 1; break; case I915_PARAM_HAS_SEMAPHORES: value = i915_semaphore_is_enabled(dev_priv); break; case I915_PARAM_HAS_PRIME_VMAP_FLUSH: value = 1; break; case I915_PARAM_HAS_SECURE_BATCHES: value = capable(CAP_SYS_ADMIN); break; case I915_PARAM_HAS_PINNED_BATCHES: value = 1; break; case I915_PARAM_HAS_EXEC_NO_RELOC: value = 1; break; case I915_PARAM_HAS_EXEC_HANDLE_LUT: value = 1; break; case I915_PARAM_CMD_PARSER_VERSION: value = i915_cmd_parser_get_version(dev_priv); break; case I915_PARAM_HAS_COHERENT_PHYS_GTT: value = 1; break; case I915_PARAM_MMAP_VERSION: value = 1; break; case I915_PARAM_SUBSLICE_TOTAL: value = INTEL_INFO(dev)->subslice_total; if (!value) return -ENODEV; break; case I915_PARAM_EU_TOTAL: value = INTEL_INFO(dev)->eu_total; if (!value) return -ENODEV; break; case I915_PARAM_HAS_GPU_RESET: value = i915.enable_hangcheck && intel_has_gpu_reset(dev); break; case I915_PARAM_HAS_RESOURCE_STREAMER: value = HAS_RESOURCE_STREAMER(dev); break; case I915_PARAM_HAS_EXEC_SOFTPIN: value = 1; break; default: DRM_DEBUG("Unknown parameter %d\n", param->param); return -EINVAL; } if (copy_to_user(param->value, &value, sizeof(int))) { DRM_ERROR("copy_to_user failed\n"); return -EFAULT; } return 0; } static int i915_get_bridge_dev(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; dev_priv->bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0)); if (!dev_priv->bridge_dev) { DRM_ERROR("bridge device not found\n"); return -1; } return 0; } /* Allocate space for the MCH regs if needed, return nonzero on error */ static int intel_alloc_mchbar_resource(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; int reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915; u32 temp_lo, temp_hi = 0; u64 mchbar_addr; int ret; if (INTEL_INFO(dev)->gen >= 4) pci_read_config_dword(dev_priv->bridge_dev, reg + 4, &temp_hi); pci_read_config_dword(dev_priv->bridge_dev, reg, &temp_lo); mchbar_addr = ((u64)temp_hi << 32) | temp_lo; /* If ACPI doesn't have it, assume we need to allocate it ourselves */ #ifdef CONFIG_PNP if (mchbar_addr && pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE)) return 0; #endif /* Get some space for it */ dev_priv->mch_res.name = "i915 MCHBAR"; dev_priv->mch_res.flags = IORESOURCE_MEM; ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus, &dev_priv->mch_res, MCHBAR_SIZE, MCHBAR_SIZE, PCIBIOS_MIN_MEM, 0, pcibios_align_resource, dev_priv->bridge_dev); if (ret) { DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret); dev_priv->mch_res.start = 0; return ret; } if (INTEL_INFO(dev)->gen >= 4) pci_write_config_dword(dev_priv->bridge_dev, reg + 4, upper_32_bits(dev_priv->mch_res.start)); pci_write_config_dword(dev_priv->bridge_dev, reg, lower_32_bits(dev_priv->mch_res.start)); return 0; } /* Setup MCHBAR if possible, return true if we should disable it again */ static void intel_setup_mchbar(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; int mchbar_reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915; u32 temp; bool enabled; if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) return; dev_priv->mchbar_need_disable = false; if (IS_I915G(dev) || IS_I915GM(dev)) { pci_read_config_dword(dev_priv->bridge_dev, DEVEN, &temp); enabled = !!(temp & DEVEN_MCHBAR_EN); } else { pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp); enabled = temp & 1; } /* If it's already enabled, don't have to do anything */ if (enabled) return; if (intel_alloc_mchbar_resource(dev)) return; dev_priv->mchbar_need_disable = true; /* Space is allocated or reserved, so enable it. */ if (IS_I915G(dev) || IS_I915GM(dev)) { pci_write_config_dword(dev_priv->bridge_dev, DEVEN, temp | DEVEN_MCHBAR_EN); } else { pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp); pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp | 1); } } static void intel_teardown_mchbar(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; int mchbar_reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915; if (dev_priv->mchbar_need_disable) { if (IS_I915G(dev) || IS_I915GM(dev)) { u32 deven_val; pci_read_config_dword(dev_priv->bridge_dev, DEVEN, &deven_val); deven_val &= ~DEVEN_MCHBAR_EN; pci_write_config_dword(dev_priv->bridge_dev, DEVEN, deven_val); } else { u32 mchbar_val; pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &mchbar_val); mchbar_val &= ~1; pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, mchbar_val); } } if (dev_priv->mch_res.start) release_resource(&dev_priv->mch_res); } /* true = enable decode, false = disable decoder */ static unsigned int i915_vga_set_decode(void *cookie, bool state) { struct drm_device *dev = cookie; intel_modeset_vga_set_state(dev, state); if (state) return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM | VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM; else return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM; } static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state) { struct drm_device *dev = pci_get_drvdata(pdev); pm_message_t pmm = { .event = PM_EVENT_SUSPEND }; if (state == VGA_SWITCHEROO_ON) { pr_info("switched on\n"); dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; /* i915 resume handler doesn't set to D0 */ pci_set_power_state(dev->pdev, PCI_D0); i915_resume_switcheroo(dev); dev->switch_power_state = DRM_SWITCH_POWER_ON; } else { pr_info("switched off\n"); dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; i915_suspend_switcheroo(dev, pmm); dev->switch_power_state = DRM_SWITCH_POWER_OFF; } } static bool i915_switcheroo_can_switch(struct pci_dev *pdev) { struct drm_device *dev = pci_get_drvdata(pdev); /* * FIXME: open_count is protected by drm_global_mutex but that would lead to * locking inversion with the driver load path. And the access here is * completely racy anyway. So don't bother with locking for now. */ return dev->open_count == 0; } static const struct vga_switcheroo_client_ops i915_switcheroo_ops = { .set_gpu_state = i915_switcheroo_set_state, .reprobe = NULL, .can_switch = i915_switcheroo_can_switch, }; static void i915_gem_fini(struct drm_device *dev) { /* * Neither the BIOS, ourselves or any other kernel * expects the system to be in execlists mode on startup, * so we need to reset the GPU back to legacy mode. And the only * known way to disable logical contexts is through a GPU reset. * * So in order to leave the system in a known default configuration, * always reset the GPU upon unload. Afterwards we then clean up the * GEM state tracking, flushing off the requests and leaving the * system in a known idle state. * * Note that is of the upmost importance that the GPU is idle and * all stray writes are flushed *before* we dismantle the backing * storage for the pinned objects. * * However, since we are uncertain that reseting the GPU on older * machines is a good idea, we don't - just in case it leaves the * machine in an unusable condition. */ if (HAS_HW_CONTEXTS(dev)) { int reset = intel_gpu_reset(dev, ALL_ENGINES); WARN_ON(reset && reset != -ENODEV); } mutex_lock(&dev->struct_mutex); i915_gem_reset(dev); i915_gem_cleanup_engines(dev); i915_gem_context_fini(dev); mutex_unlock(&dev->struct_mutex); WARN_ON(!list_empty(&to_i915(dev)->context_list)); } static int i915_load_modeset_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; int ret; if (i915_inject_load_failure()) return -ENODEV; ret = intel_bios_init(dev_priv); if (ret) DRM_INFO("failed to find VBIOS tables\n"); /* If we have > 1 VGA cards, then we need to arbitrate access * to the common VGA resources. * * If we are a secondary display controller (!PCI_DISPLAY_CLASS_VGA), * then we do not take part in VGA arbitration and the * vga_client_register() fails with -ENODEV. */ ret = vga_client_register(dev->pdev, dev, NULL, i915_vga_set_decode); if (ret && ret != -ENODEV) goto out; intel_register_dsm_handler(); ret = vga_switcheroo_register_client(dev->pdev, &i915_switcheroo_ops, false); if (ret) goto cleanup_vga_client; /* must happen before intel_power_domains_init_hw() on VLV/CHV */ intel_update_rawclk(dev_priv); intel_power_domains_init_hw(dev_priv, false); intel_csr_ucode_init(dev_priv); ret = intel_irq_install(dev_priv); if (ret) goto cleanup_csr; intel_setup_gmbus(dev); /* Important: The output setup functions called by modeset_init need * working irqs for e.g. gmbus and dp aux transfers. */ intel_modeset_init(dev); intel_guc_ucode_init(dev); ret = i915_gem_init(dev); if (ret) goto cleanup_irq; intel_modeset_gem_init(dev); /* Always safe in the mode setting case. */ /* FIXME: do pre/post-mode set stuff in core KMS code */ dev->vblank_disable_allowed = true; if (INTEL_INFO(dev)->num_pipes == 0) return 0; ret = intel_fbdev_init(dev); if (ret) goto cleanup_gem; /* Only enable hotplug handling once the fbdev is fully set up. */ intel_hpd_init(dev_priv); /* * Some ports require correctly set-up hpd registers for detection to * work properly (leading to ghost connected connector status), e.g. VGA * on gm45. Hence we can only set up the initial fbdev config after hpd * irqs are fully enabled. Now we should scan for the initial config * only once hotplug handling is enabled, but due to screwed-up locking * around kms/fbdev init we can't protect the fdbev initial config * scanning against hotplug events. Hence do this first and ignore the * tiny window where we will loose hotplug notifactions. */ intel_fbdev_initial_config_async(dev); drm_kms_helper_poll_init(dev); return 0; cleanup_gem: i915_gem_fini(dev); cleanup_irq: intel_guc_ucode_fini(dev); drm_irq_uninstall(dev); intel_teardown_gmbus(dev); cleanup_csr: intel_csr_ucode_fini(dev_priv); intel_power_domains_fini(dev_priv); vga_switcheroo_unregister_client(dev->pdev); cleanup_vga_client: vga_client_register(dev->pdev, NULL, NULL, NULL); out: return ret; } #if IS_ENABLED(CONFIG_FB) static int i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv) { struct apertures_struct *ap; struct pci_dev *pdev = dev_priv->dev->pdev; struct i915_ggtt *ggtt = &dev_priv->ggtt; bool primary; int ret; ap = alloc_apertures(1); if (!ap) return -ENOMEM; ap->ranges[0].base = ggtt->mappable_base; ap->ranges[0].size = ggtt->mappable_end; primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; ret = remove_conflicting_framebuffers(ap, "inteldrmfb", primary); kfree(ap); return ret; } #else static int i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv) { return 0; } #endif #if !defined(CONFIG_VGA_CONSOLE) static int i915_kick_out_vgacon(struct drm_i915_private *dev_priv) { return 0; } #elif !defined(CONFIG_DUMMY_CONSOLE) static int i915_kick_out_vgacon(struct drm_i915_private *dev_priv) { return -ENODEV; } #else static int i915_kick_out_vgacon(struct drm_i915_private *dev_priv) { int ret = 0; DRM_INFO("Replacing VGA console driver\n"); console_lock(); if (con_is_bound(&vga_con)) ret = do_take_over_console(&dummy_con, 0, MAX_NR_CONSOLES - 1, 1); if (ret == 0) { ret = do_unregister_con_driver(&vga_con); /* Ignore "already unregistered". */ if (ret == -ENODEV) ret = 0; } console_unlock(); return ret; } #endif static void i915_dump_device_info(struct drm_i915_private *dev_priv) { const struct intel_device_info *info = &dev_priv->info; #define PRINT_S(name) "%s" #define SEP_EMPTY #define PRINT_FLAG(name) info->name ? #name "," : "" #define SEP_COMMA , DRM_DEBUG_DRIVER("i915 device info: gen=%i, pciid=0x%04x rev=0x%02x flags=" DEV_INFO_FOR_EACH_FLAG(PRINT_S, SEP_EMPTY), info->gen, dev_priv->dev->pdev->device, dev_priv->dev->pdev->revision, DEV_INFO_FOR_EACH_FLAG(PRINT_FLAG, SEP_COMMA)); #undef PRINT_S #undef SEP_EMPTY #undef PRINT_FLAG #undef SEP_COMMA } static void cherryview_sseu_info_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_device_info *info; u32 fuse, eu_dis; info = (struct intel_device_info *)&dev_priv->info; fuse = I915_READ(CHV_FUSE_GT); info->slice_total = 1; if (!(fuse & CHV_FGT_DISABLE_SS0)) { info->subslice_per_slice++; eu_dis = fuse & (CHV_FGT_EU_DIS_SS0_R0_MASK | CHV_FGT_EU_DIS_SS0_R1_MASK); info->eu_total += 8 - hweight32(eu_dis); } if (!(fuse & CHV_FGT_DISABLE_SS1)) { info->subslice_per_slice++; eu_dis = fuse & (CHV_FGT_EU_DIS_SS1_R0_MASK | CHV_FGT_EU_DIS_SS1_R1_MASK); info->eu_total += 8 - hweight32(eu_dis); } info->subslice_total = info->subslice_per_slice; /* * CHV expected to always have a uniform distribution of EU * across subslices. */ info->eu_per_subslice = info->subslice_total ? info->eu_total / info->subslice_total : 0; /* * CHV supports subslice power gating on devices with more than * one subslice, and supports EU power gating on devices with * more than one EU pair per subslice. */ info->has_slice_pg = 0; info->has_subslice_pg = (info->subslice_total > 1); info->has_eu_pg = (info->eu_per_subslice > 2); } static void gen9_sseu_info_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_device_info *info; int s_max = 3, ss_max = 4, eu_max = 8; int s, ss; u32 fuse2, s_enable, ss_disable, eu_disable; u8 eu_mask = 0xff; info = (struct intel_device_info *)&dev_priv->info; fuse2 = I915_READ(GEN8_FUSE2); s_enable = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT; ss_disable = (fuse2 & GEN9_F2_SS_DIS_MASK) >> GEN9_F2_SS_DIS_SHIFT; info->slice_total = hweight32(s_enable); /* * The subslice disable field is global, i.e. it applies * to each of the enabled slices. */ info->subslice_per_slice = ss_max - hweight32(ss_disable); info->subslice_total = info->slice_total * info->subslice_per_slice; /* * Iterate through enabled slices and subslices to * count the total enabled EU. */ for (s = 0; s < s_max; s++) { if (!(s_enable & (0x1 << s))) /* skip disabled slice */ continue; eu_disable = I915_READ(GEN9_EU_DISABLE(s)); for (ss = 0; ss < ss_max; ss++) { int eu_per_ss; if (ss_disable & (0x1 << ss)) /* skip disabled subslice */ continue; eu_per_ss = eu_max - hweight8((eu_disable >> (ss*8)) & eu_mask); /* * Record which subslice(s) has(have) 7 EUs. we * can tune the hash used to spread work among * subslices if they are unbalanced. */ if (eu_per_ss == 7) info->subslice_7eu[s] |= 1 << ss; info->eu_total += eu_per_ss; } } /* * SKL is expected to always have a uniform distribution * of EU across subslices with the exception that any one * EU in any one subslice may be fused off for die * recovery. BXT is expected to be perfectly uniform in EU * distribution. */ info->eu_per_subslice = info->subslice_total ? DIV_ROUND_UP(info->eu_total, info->subslice_total) : 0; /* * SKL supports slice power gating on devices with more than * one slice, and supports EU power gating on devices with * more than one EU pair per subslice. BXT supports subslice * power gating on devices with more than one subslice, and * supports EU power gating on devices with more than one EU * pair per subslice. */ info->has_slice_pg = ((IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) && (info->slice_total > 1)); info->has_subslice_pg = (IS_BROXTON(dev) && (info->subslice_total > 1)); info->has_eu_pg = (info->eu_per_subslice > 2); } static void broadwell_sseu_info_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_device_info *info; const int s_max = 3, ss_max = 3, eu_max = 8; int s, ss; u32 fuse2, eu_disable[s_max], s_enable, ss_disable; fuse2 = I915_READ(GEN8_FUSE2); s_enable = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT; ss_disable = (fuse2 & GEN8_F2_SS_DIS_MASK) >> GEN8_F2_SS_DIS_SHIFT; eu_disable[0] = I915_READ(GEN8_EU_DISABLE0) & GEN8_EU_DIS0_S0_MASK; eu_disable[1] = (I915_READ(GEN8_EU_DISABLE0) >> GEN8_EU_DIS0_S1_SHIFT) | ((I915_READ(GEN8_EU_DISABLE1) & GEN8_EU_DIS1_S1_MASK) << (32 - GEN8_EU_DIS0_S1_SHIFT)); eu_disable[2] = (I915_READ(GEN8_EU_DISABLE1) >> GEN8_EU_DIS1_S2_SHIFT) | ((I915_READ(GEN8_EU_DISABLE2) & GEN8_EU_DIS2_S2_MASK) << (32 - GEN8_EU_DIS1_S2_SHIFT)); info = (struct intel_device_info *)&dev_priv->info; info->slice_total = hweight32(s_enable); /* * The subslice disable field is global, i.e. it applies * to each of the enabled slices. */ info->subslice_per_slice = ss_max - hweight32(ss_disable); info->subslice_total = info->slice_total * info->subslice_per_slice; /* * Iterate through enabled slices and subslices to * count the total enabled EU. */ for (s = 0; s < s_max; s++) { if (!(s_enable & (0x1 << s))) /* skip disabled slice */ continue; for (ss = 0; ss < ss_max; ss++) { u32 n_disabled; if (ss_disable & (0x1 << ss)) /* skip disabled subslice */ continue; n_disabled = hweight8(eu_disable[s] >> (ss * eu_max)); /* * Record which subslices have 7 EUs. */ if (eu_max - n_disabled == 7) info->subslice_7eu[s] |= 1 << ss; info->eu_total += eu_max - n_disabled; } } /* * BDW is expected to always have a uniform distribution of EU across * subslices with the exception that any one EU in any one subslice may * be fused off for die recovery. */ info->eu_per_subslice = info->subslice_total ? DIV_ROUND_UP(info->eu_total, info->subslice_total) : 0; /* * BDW supports slice power gating on devices with more than * one slice. */ info->has_slice_pg = (info->slice_total > 1); info->has_subslice_pg = 0; info->has_eu_pg = 0; } /* * Determine various intel_device_info fields at runtime. * * Use it when either: * - it's judged too laborious to fill n static structures with the limit * when a simple if statement does the job, * - run-time checks (eg read fuse/strap registers) are needed. * * This function needs to be called: * - after the MMIO has been setup as we are reading registers, * - after the PCH has been detected, * - before the first usage of the fields it can tweak. */ static void intel_device_info_runtime_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_device_info *info; enum pipe pipe; info = (struct intel_device_info *)&dev_priv->info; /* * Skylake and Broxton currently don't expose the topmost plane as its * use is exclusive with the legacy cursor and we only want to expose * one of those, not both. Until we can safely expose the topmost plane * as a DRM_PLANE_TYPE_CURSOR with all the features exposed/supported, * we don't expose the topmost plane at all to prevent ABI breakage * down the line. */ if (IS_BROXTON(dev)) { info->num_sprites[PIPE_A] = 2; info->num_sprites[PIPE_B] = 2; info->num_sprites[PIPE_C] = 1; } else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) for_each_pipe(dev_priv, pipe) info->num_sprites[pipe] = 2; else for_each_pipe(dev_priv, pipe) info->num_sprites[pipe] = 1; if (i915.disable_display) { DRM_INFO("Display disabled (module parameter)\n"); info->num_pipes = 0; } else if (info->num_pipes > 0 && (INTEL_INFO(dev)->gen == 7 || INTEL_INFO(dev)->gen == 8) && HAS_PCH_SPLIT(dev)) { u32 fuse_strap = I915_READ(FUSE_STRAP); u32 sfuse_strap = I915_READ(SFUSE_STRAP); /* * SFUSE_STRAP is supposed to have a bit signalling the display * is fused off. Unfortunately it seems that, at least in * certain cases, fused off display means that PCH display * reads don't land anywhere. In that case, we read 0s. * * On CPT/PPT, we can detect this case as SFUSE_STRAP_FUSE_LOCK * should be set when taking over after the firmware. */ if (fuse_strap & ILK_INTERNAL_DISPLAY_DISABLE || sfuse_strap & SFUSE_STRAP_DISPLAY_DISABLED || (dev_priv->pch_type == PCH_CPT && !(sfuse_strap & SFUSE_STRAP_FUSE_LOCK))) { DRM_INFO("Display fused off, disabling\n"); info->num_pipes = 0; } else if (fuse_strap & IVB_PIPE_C_DISABLE) { DRM_INFO("PipeC fused off\n"); info->num_pipes -= 1; } } else if (info->num_pipes > 0 && INTEL_INFO(dev)->gen == 9) { u32 dfsm = I915_READ(SKL_DFSM); u8 disabled_mask = 0; bool invalid; int num_bits; if (dfsm & SKL_DFSM_PIPE_A_DISABLE) disabled_mask |= BIT(PIPE_A); if (dfsm & SKL_DFSM_PIPE_B_DISABLE) disabled_mask |= BIT(PIPE_B); if (dfsm & SKL_DFSM_PIPE_C_DISABLE) disabled_mask |= BIT(PIPE_C); num_bits = hweight8(disabled_mask); switch (disabled_mask) { case BIT(PIPE_A): case BIT(PIPE_B): case BIT(PIPE_A) | BIT(PIPE_B): case BIT(PIPE_A) | BIT(PIPE_C): invalid = true; break; default: invalid = false; } if (num_bits > info->num_pipes || invalid) DRM_ERROR("invalid pipe fuse configuration: 0x%x\n", disabled_mask); else info->num_pipes -= num_bits; } /* Initialize slice/subslice/EU info */ if (IS_CHERRYVIEW(dev)) cherryview_sseu_info_init(dev); else if (IS_BROADWELL(dev)) broadwell_sseu_info_init(dev); else if (INTEL_INFO(dev)->gen >= 9) gen9_sseu_info_init(dev); /* Snooping is broken on BXT A stepping. */ info->has_snoop = !info->has_llc; info->has_snoop &= !IS_BXT_REVID(dev, 0, BXT_REVID_A1); DRM_DEBUG_DRIVER("slice total: %u\n", info->slice_total); DRM_DEBUG_DRIVER("subslice total: %u\n", info->subslice_total); DRM_DEBUG_DRIVER("subslice per slice: %u\n", info->subslice_per_slice); DRM_DEBUG_DRIVER("EU total: %u\n", info->eu_total); DRM_DEBUG_DRIVER("EU per subslice: %u\n", info->eu_per_subslice); DRM_DEBUG_DRIVER("has slice power gating: %s\n", info->has_slice_pg ? "y" : "n"); DRM_DEBUG_DRIVER("has subslice power gating: %s\n", info->has_subslice_pg ? "y" : "n"); DRM_DEBUG_DRIVER("has EU power gating: %s\n", info->has_eu_pg ? "y" : "n"); i915.enable_execlists = intel_sanitize_enable_execlists(dev_priv, i915.enable_execlists); /* * i915.enable_ppgtt is read-only, so do an early pass to validate the * user's requested state against the hardware/driver capabilities. We * do this now so that we can print out any log messages once rather * than every time we check intel_enable_ppgtt(). */ i915.enable_ppgtt = intel_sanitize_enable_ppgtt(dev_priv, i915.enable_ppgtt); DRM_DEBUG_DRIVER("ppgtt mode: %i\n", i915.enable_ppgtt); } static void intel_init_dpio(struct drm_i915_private *dev_priv) { /* * IOSF_PORT_DPIO is used for VLV x2 PHY (DP/HDMI B and C), * CHV x1 PHY (DP/HDMI D) * IOSF_PORT_DPIO_2 is used for CHV x2 PHY (DP/HDMI B and C) */ if (IS_CHERRYVIEW(dev_priv)) { DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO_2; DPIO_PHY_IOSF_PORT(DPIO_PHY1) = IOSF_PORT_DPIO; } else if (IS_VALLEYVIEW(dev_priv)) { DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO; } } static int i915_workqueues_init(struct drm_i915_private *dev_priv) { /* * The i915 workqueue is primarily used for batched retirement of * requests (and thus managing bo) once the task has been completed * by the GPU. i915_gem_retire_requests() is called directly when we * need high-priority retirement, such as waiting for an explicit * bo. * * It is also used for periodic low-priority events, such as * idle-timers and recording error state. * * All tasks on the workqueue are expected to acquire the dev mutex * so there is no point in running more than one instance of the * workqueue at any time. Use an ordered one. */ dev_priv->wq = alloc_ordered_workqueue("i915", 0); if (dev_priv->wq == NULL) goto out_err; dev_priv->hotplug.dp_wq = alloc_ordered_workqueue("i915-dp", 0); if (dev_priv->hotplug.dp_wq == NULL) goto out_free_wq; dev_priv->gpu_error.hangcheck_wq = alloc_ordered_workqueue("i915-hangcheck", 0); if (dev_priv->gpu_error.hangcheck_wq == NULL) goto out_free_dp_wq; return 0; out_free_dp_wq: destroy_workqueue(dev_priv->hotplug.dp_wq); out_free_wq: destroy_workqueue(dev_priv->wq); out_err: DRM_ERROR("Failed to allocate workqueues.\n"); return -ENOMEM; } static void i915_workqueues_cleanup(struct drm_i915_private *dev_priv) { destroy_workqueue(dev_priv->gpu_error.hangcheck_wq); destroy_workqueue(dev_priv->hotplug.dp_wq); destroy_workqueue(dev_priv->wq); } /** * i915_driver_init_early - setup state not requiring device access * @dev_priv: device private * * Initialize everything that is a "SW-only" state, that is state not * requiring accessing the device or exposing the driver via kernel internal * or userspace interfaces. Example steps belonging here: lock initialization, * system memory allocation, setting up device specific attributes and * function hooks not requiring accessing the device. */ static int i915_driver_init_early(struct drm_i915_private *dev_priv, struct drm_device *dev, struct intel_device_info *info) { struct intel_device_info *device_info; int ret = 0; if (i915_inject_load_failure()) return -ENODEV; /* Setup the write-once "constant" device info */ device_info = (struct intel_device_info *)&dev_priv->info; memcpy(device_info, info, sizeof(dev_priv->info)); device_info->device_id = dev->pdev->device; spin_lock_init(&dev_priv->irq_lock); spin_lock_init(&dev_priv->gpu_error.lock); mutex_init(&dev_priv->backlight_lock); spin_lock_init(&dev_priv->uncore.lock); spin_lock_init(&dev_priv->mm.object_stat_lock); spin_lock_init(&dev_priv->mmio_flip_lock); mutex_init(&dev_priv->sb_lock); mutex_init(&dev_priv->modeset_restore_lock); mutex_init(&dev_priv->av_mutex); mutex_init(&dev_priv->wm.wm_mutex); mutex_init(&dev_priv->pps_mutex); ret = i915_workqueues_init(dev_priv); if (ret < 0) return ret; /* This must be called before any calls to HAS_PCH_* */ intel_detect_pch(dev); intel_pm_setup(dev); intel_init_dpio(dev_priv); intel_power_domains_init(dev_priv); intel_irq_init(dev_priv); intel_init_display_hooks(dev_priv); intel_init_clock_gating_hooks(dev_priv); intel_init_audio_hooks(dev_priv); i915_gem_load_init(dev); intel_display_crc_init(dev); i915_dump_device_info(dev_priv); /* Not all pre-production machines fall into this category, only the * very first ones. Almost everything should work, except for maybe * suspend/resume. And we don't implement workarounds that affect only * pre-production machines. */ if (IS_HSW_EARLY_SDV(dev)) DRM_INFO("This is an early pre-production Haswell machine. " "It may not be fully functional.\n"); return 0; } /** * i915_driver_cleanup_early - cleanup the setup done in i915_driver_init_early() * @dev_priv: device private */ static void i915_driver_cleanup_early(struct drm_i915_private *dev_priv) { i915_gem_load_cleanup(dev_priv->dev); i915_workqueues_cleanup(dev_priv); } static int i915_mmio_setup(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); int mmio_bar; int mmio_size; mmio_bar = IS_GEN2(dev) ? 1 : 0; /* * Before gen4, the registers and the GTT are behind different BARs. * However, from gen4 onwards, the registers and the GTT are shared * in the same BAR, so we want to restrict this ioremap from * clobbering the GTT which we want ioremap_wc instead. Fortunately, * the register BAR remains the same size for all the earlier * generations up to Ironlake. */ if (INTEL_INFO(dev)->gen < 5) mmio_size = 512 * 1024; else mmio_size = 2 * 1024 * 1024; dev_priv->regs = pci_iomap(dev->pdev, mmio_bar, mmio_size); if (dev_priv->regs == NULL) { DRM_ERROR("failed to map registers\n"); return -EIO; } /* Try to make sure MCHBAR is enabled before poking at it */ intel_setup_mchbar(dev); return 0; } static void i915_mmio_cleanup(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); intel_teardown_mchbar(dev); pci_iounmap(dev->pdev, dev_priv->regs); } /** * i915_driver_init_mmio - setup device MMIO * @dev_priv: device private * * Setup minimal device state necessary for MMIO accesses later in the * initialization sequence. The setup here should avoid any other device-wide * side effects or exposing the driver via kernel internal or user space * interfaces. */ static int i915_driver_init_mmio(struct drm_i915_private *dev_priv) { struct drm_device *dev = dev_priv->dev; int ret; if (i915_inject_load_failure()) return -ENODEV; if (i915_get_bridge_dev(dev)) return -EIO; ret = i915_mmio_setup(dev); if (ret < 0) goto put_bridge; intel_uncore_init(dev); return 0; put_bridge: pci_dev_put(dev_priv->bridge_dev); return ret; } /** * i915_driver_cleanup_mmio - cleanup the setup done in i915_driver_init_mmio() * @dev_priv: device private */ static void i915_driver_cleanup_mmio(struct drm_i915_private *dev_priv) { struct drm_device *dev = dev_priv->dev; intel_uncore_fini(dev); i915_mmio_cleanup(dev); pci_dev_put(dev_priv->bridge_dev); } /** * i915_driver_init_hw - setup state requiring device access * @dev_priv: device private * * Setup state that requires accessing the device, but doesn't require * exposing the driver via kernel internal or userspace interfaces. */ static int i915_driver_init_hw(struct drm_i915_private *dev_priv) { struct drm_device *dev = dev_priv->dev; struct i915_ggtt *ggtt = &dev_priv->ggtt; uint32_t aperture_size; int ret; if (i915_inject_load_failure()) return -ENODEV; intel_device_info_runtime_init(dev); ret = i915_ggtt_init_hw(dev); if (ret) return ret; ret = i915_ggtt_enable_hw(dev); if (ret) { DRM_ERROR("failed to enable GGTT\n"); goto out_ggtt; } /* WARNING: Apparently we must kick fbdev drivers before vgacon, * otherwise the vga fbdev driver falls over. */ ret = i915_kick_out_firmware_fb(dev_priv); if (ret) { DRM_ERROR("failed to remove conflicting framebuffer drivers\n"); goto out_ggtt; } ret = i915_kick_out_vgacon(dev_priv); if (ret) { DRM_ERROR("failed to remove conflicting VGA console\n"); goto out_ggtt; } pci_set_master(dev->pdev); /* overlay on gen2 is broken and can't address above 1G */ if (IS_GEN2(dev)) dma_set_coherent_mask(&dev->pdev->dev, DMA_BIT_MASK(30)); /* 965GM sometimes incorrectly writes to hardware status page (HWS) * using 32bit addressing, overwriting memory if HWS is located * above 4GB. * * The documentation also mentions an issue with undefined * behaviour if any general state is accessed within a page above 4GB, * which also needs to be handled carefully. */ if (IS_BROADWATER(dev) || IS_CRESTLINE(dev)) dma_set_coherent_mask(&dev->pdev->dev, DMA_BIT_MASK(32)); aperture_size = ggtt->mappable_end; ggtt->mappable = io_mapping_create_wc(ggtt->mappable_base, aperture_size); if (!ggtt->mappable) { ret = -EIO; goto out_ggtt; } ggtt->mtrr = arch_phys_wc_add(ggtt->mappable_base, aperture_size); pm_qos_add_request(&dev_priv->pm_qos, PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); intel_uncore_sanitize(dev); intel_opregion_setup(dev); i915_gem_load_init_fences(dev_priv); /* On the 945G/GM, the chipset reports the MSI capability on the * integrated graphics even though the support isn't actually there * according to the published specs. It doesn't appear to function * correctly in testing on 945G. * This may be a side effect of MSI having been made available for PEG * and the registers being closely associated. * * According to chipset errata, on the 965GM, MSI interrupts may * be lost or delayed, but we use them anyways to avoid * stuck interrupts on some machines. */ if (!IS_I945G(dev) && !IS_I945GM(dev)) { if (pci_enable_msi(dev->pdev) < 0) DRM_DEBUG_DRIVER("can't enable MSI"); } return 0; out_ggtt: i915_ggtt_cleanup_hw(dev); return ret; } /** * i915_driver_cleanup_hw - cleanup the setup done in i915_driver_init_hw() * @dev_priv: device private */ static void i915_driver_cleanup_hw(struct drm_i915_private *dev_priv) { struct drm_device *dev = dev_priv->dev; struct i915_ggtt *ggtt = &dev_priv->ggtt; if (dev->pdev->msi_enabled) pci_disable_msi(dev->pdev); pm_qos_remove_request(&dev_priv->pm_qos); arch_phys_wc_del(ggtt->mtrr); io_mapping_free(ggtt->mappable); i915_ggtt_cleanup_hw(dev); } /** * i915_driver_register - register the driver with the rest of the system * @dev_priv: device private * * Perform any steps necessary to make the driver available via kernel * internal or userspace interfaces. */ static void i915_driver_register(struct drm_i915_private *dev_priv) { struct drm_device *dev = dev_priv->dev; i915_gem_shrinker_init(dev_priv); /* * Notify a valid surface after modesetting, * when running inside a VM. */ if (intel_vgpu_active(dev_priv)) I915_WRITE(vgtif_reg(display_ready), VGT_DRV_DISPLAY_READY); i915_setup_sysfs(dev); if (INTEL_INFO(dev_priv)->num_pipes) { /* Must be done after probing outputs */ intel_opregion_init(dev); acpi_video_register(); } if (IS_GEN5(dev_priv)) intel_gpu_ips_init(dev_priv); i915_audio_component_init(dev_priv); } /** * i915_driver_unregister - cleanup the registration done in i915_driver_regiser() * @dev_priv: device private */ static void i915_driver_unregister(struct drm_i915_private *dev_priv) { i915_audio_component_cleanup(dev_priv); intel_gpu_ips_teardown(); acpi_video_unregister(); intel_opregion_fini(dev_priv->dev); i915_teardown_sysfs(dev_priv->dev); i915_gem_shrinker_cleanup(dev_priv); } /** * i915_driver_load - setup chip and create an initial config * @dev: DRM device * @flags: startup flags * * The driver load routine has to do several things: * - drive output discovery via intel_modeset_init() * - initialize the memory manager * - allocate initial config memory * - setup the DRM framebuffer with the allocated memory */ int i915_driver_load(struct drm_device *dev, unsigned long flags) { struct drm_i915_private *dev_priv; int ret = 0; dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL); if (dev_priv == NULL) return -ENOMEM; dev->dev_private = dev_priv; /* Must be set before calling __i915_printk */ dev_priv->dev = dev; ret = i915_driver_init_early(dev_priv, dev, (struct intel_device_info *)flags); if (ret < 0) goto out_free_priv; intel_runtime_pm_get(dev_priv); ret = i915_driver_init_mmio(dev_priv); if (ret < 0) goto out_runtime_pm_put; ret = i915_driver_init_hw(dev_priv); if (ret < 0) goto out_cleanup_mmio; /* * TODO: move the vblank init and parts of modeset init steps into one * of the i915_driver_init_/i915_driver_register functions according * to the role/effect of the given init step. */ if (INTEL_INFO(dev)->num_pipes) { ret = drm_vblank_init(dev, INTEL_INFO(dev)->num_pipes); if (ret) goto out_cleanup_hw; } ret = i915_load_modeset_init(dev); if (ret < 0) goto out_cleanup_vblank; i915_driver_register(dev_priv); intel_runtime_pm_enable(dev_priv); intel_runtime_pm_put(dev_priv); return 0; out_cleanup_vblank: drm_vblank_cleanup(dev); out_cleanup_hw: i915_driver_cleanup_hw(dev_priv); out_cleanup_mmio: i915_driver_cleanup_mmio(dev_priv); out_runtime_pm_put: intel_runtime_pm_put(dev_priv); i915_driver_cleanup_early(dev_priv); out_free_priv: i915_load_error(dev_priv, "Device initialization failed (%d)\n", ret); kfree(dev_priv); return ret; } int i915_driver_unload(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; int ret; intel_fbdev_fini(dev); ret = i915_gem_suspend(dev); if (ret) { DRM_ERROR("failed to idle hardware: %d\n", ret); return ret; } intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); i915_driver_unregister(dev_priv); drm_vblank_cleanup(dev); intel_modeset_cleanup(dev); /* * free the memory space allocated for the child device * config parsed from VBT */ if (dev_priv->vbt.child_dev && dev_priv->vbt.child_dev_num) { kfree(dev_priv->vbt.child_dev); dev_priv->vbt.child_dev = NULL; dev_priv->vbt.child_dev_num = 0; } kfree(dev_priv->vbt.sdvo_lvds_vbt_mode); dev_priv->vbt.sdvo_lvds_vbt_mode = NULL; kfree(dev_priv->vbt.lfp_lvds_vbt_mode); dev_priv->vbt.lfp_lvds_vbt_mode = NULL; vga_switcheroo_unregister_client(dev->pdev); vga_client_register(dev->pdev, NULL, NULL, NULL); intel_csr_ucode_fini(dev_priv); /* Free error state after interrupts are fully disabled. */ cancel_delayed_work_sync(&dev_priv->gpu_error.hangcheck_work); i915_destroy_error_state(dev); /* Flush any outstanding unpin_work. */ flush_workqueue(dev_priv->wq); intel_guc_ucode_fini(dev); i915_gem_fini(dev); intel_fbc_cleanup_cfb(dev_priv); intel_power_domains_fini(dev_priv); i915_driver_cleanup_hw(dev_priv); i915_driver_cleanup_mmio(dev_priv); intel_display_power_put(dev_priv, POWER_DOMAIN_INIT); i915_driver_cleanup_early(dev_priv); kfree(dev_priv); return 0; } int i915_driver_open(struct drm_device *dev, struct drm_file *file) { int ret; ret = i915_gem_open(dev, file); if (ret) return ret; return 0; } /** * i915_driver_lastclose - clean up after all DRM clients have exited * @dev: DRM device * * Take care of cleaning up after all DRM clients have exited. In the * mode setting case, we want to restore the kernel's initial mode (just * in case the last client left us in a bad state). * * Additionally, in the non-mode setting case, we'll tear down the GTT * and DMA structures, since the kernel won't be using them, and clea * up any GEM state. */ void i915_driver_lastclose(struct drm_device *dev) { intel_fbdev_restore_mode(dev); vga_switcheroo_process_delayed_switch(); } void i915_driver_preclose(struct drm_device *dev, struct drm_file *file) { mutex_lock(&dev->struct_mutex); i915_gem_context_close(dev, file); i915_gem_release(dev, file); mutex_unlock(&dev->struct_mutex); } void i915_driver_postclose(struct drm_device *dev, struct drm_file *file) { struct drm_i915_file_private *file_priv = file->driver_priv; kfree(file_priv); } static int i915_gem_reject_pin_ioctl(struct drm_device *dev, void *data, struct drm_file *file) { return -ENODEV; } const struct drm_ioctl_desc i915_ioctls[] = { DRM_IOCTL_DEF_DRV(I915_INIT, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_FLUSH, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_FLIP, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_BATCHBUFFER, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_IRQ_EMIT, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_IRQ_WAIT, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_GETPARAM, i915_getparam, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_SETPARAM, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_ALLOC, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_FREE, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_INIT_HEAP, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_CMDBUFFER, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_DESTROY_HEAP, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_SET_VBLANK_PIPE, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_GET_VBLANK_PIPE, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_VBLANK_SWAP, drm_noop, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_HWS_ADDR, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_GEM_INIT, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH), DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER2, i915_gem_execbuffer2, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_PIN, i915_gem_reject_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_GEM_UNPIN, i915_gem_reject_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_SET_CACHING, i915_gem_set_caching_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_GET_CACHING, i915_gem_get_caching_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_ENTERVT, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_GEM_LEAVEVT, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_GEM_CREATE, i915_gem_create_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_PREAD, i915_gem_pread_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_PWRITE, i915_gem_pwrite_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_MMAP, i915_gem_mmap_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_SET_TILING, i915_gem_set_tiling, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_GET_TILING, i915_gem_get_tiling, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GET_PIPE_FROM_CRTC_ID, intel_get_pipe_from_crtc_id, 0), DRM_IOCTL_DEF_DRV(I915_GEM_MADVISE, i915_gem_madvise_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_OVERLAY_PUT_IMAGE, intel_overlay_put_image, DRM_MASTER|DRM_CONTROL_ALLOW), DRM_IOCTL_DEF_DRV(I915_OVERLAY_ATTRS, intel_overlay_attrs, DRM_MASTER|DRM_CONTROL_ALLOW), DRM_IOCTL_DEF_DRV(I915_SET_SPRITE_COLORKEY, intel_sprite_set_colorkey, DRM_MASTER|DRM_CONTROL_ALLOW), DRM_IOCTL_DEF_DRV(I915_GET_SPRITE_COLORKEY, drm_noop, DRM_MASTER|DRM_CONTROL_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_WAIT, i915_gem_wait_ioctl, DRM_AUTH|DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_CREATE, i915_gem_context_create_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_DESTROY, i915_gem_context_destroy_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_REG_READ, i915_reg_read_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GET_RESET_STATS, i915_get_reset_stats_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_USERPTR, i915_gem_userptr_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_GETPARAM, i915_gem_context_getparam_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_SETPARAM, i915_gem_context_setparam_ioctl, DRM_RENDER_ALLOW), }; int i915_max_ioctl = ARRAY_SIZE(i915_ioctls);