diff options
author | Jani Nikula <jani.nikula@intel.com> | 2021-11-11 12:13:02 +0200 |
---|---|---|
committer | Jani Nikula <jani.nikula@intel.com> | 2021-11-17 11:46:58 +0200 |
commit | 58471f6384fd8f807d3ff2e771c34f71c473f6b0 (patch) | |
tree | 52eb5bb09dbab02597137f1495241e3d1d53e827 /drivers/gpu/drm/i915/i915_drv.c | |
parent | 1a085e23411de188ad0615f40a9399d80d1f7368 (diff) |
drm/i915/driver: rename i915_drv.c to i915_driver.c
This is more about trimming i915_drv.h than the renamed
i915_driver.[ch]. Split out i915_driver.[ch] out of i915_drv.h as a
feasible thing to do.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20211111101304.13094-1-jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 1834 |
1 files changed, 0 insertions, 1834 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c deleted file mode 100644 index 8229d006f7a6..000000000000 --- a/drivers/gpu/drm/i915/i915_drv.c +++ /dev/null @@ -1,1834 +0,0 @@ -/* 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 <linux/acpi.h> -#include <linux/device.h> -#include <linux/oom.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/pm.h> -#include <linux/pm_runtime.h> -#include <linux/pnp.h> -#include <linux/slab.h> -#include <linux/vga_switcheroo.h> -#include <linux/vt.h> - -#include <drm/drm_aperture.h> -#include <drm/drm_atomic_helper.h> -#include <drm/drm_ioctl.h> -#include <drm/drm_managed.h> -#include <drm/drm_probe_helper.h> - -#include "display/intel_acpi.h" -#include "display/intel_bw.h" -#include "display/intel_cdclk.h" -#include "display/intel_dmc.h" -#include "display/intel_display_types.h" -#include "display/intel_dp.h" -#include "display/intel_dpt.h" -#include "display/intel_fbdev.h" -#include "display/intel_hotplug.h" -#include "display/intel_overlay.h" -#include "display/intel_pch_refclk.h" -#include "display/intel_pipe_crc.h" -#include "display/intel_pps.h" -#include "display/intel_sprite.h" -#include "display/intel_vga.h" - -#include "gem/i915_gem_context.h" -#include "gem/i915_gem_ioctls.h" -#include "gem/i915_gem_mman.h" -#include "gem/i915_gem_pm.h" -#include "gt/intel_gt.h" -#include "gt/intel_gt_pm.h" -#include "gt/intel_rc6.h" - -#include "pxp/intel_pxp_pm.h" - -#include "i915_debugfs.h" -#include "i915_drv.h" -#include "i915_ioc32.h" -#include "i915_irq.h" -#include "i915_memcpy.h" -#include "i915_perf.h" -#include "i915_query.h" -#include "i915_suspend.h" -#include "i915_switcheroo.h" -#include "i915_sysfs.h" -#include "i915_trace.h" -#include "i915_vgpu.h" -#include "intel_dram.h" -#include "intel_gvt.h" -#include "intel_memory_region.h" -#include "intel_pcode.h" -#include "intel_pm.h" -#include "intel_region_ttm.h" -#include "vlv_suspend.h" - -static const struct drm_driver driver; - -static int i915_get_bridge_dev(struct drm_i915_private *dev_priv) -{ - int domain = pci_domain_nr(to_pci_dev(dev_priv->drm.dev)->bus); - - dev_priv->bridge_dev = - pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(0, 0)); - if (!dev_priv->bridge_dev) { - drm_err(&dev_priv->drm, "bridge device not found\n"); - return -EIO; - } - return 0; -} - -/* Allocate space for the MCH regs if needed, return nonzero on error */ -static int -intel_alloc_mchbar_resource(struct drm_i915_private *dev_priv) -{ - int reg = GRAPHICS_VER(dev_priv) >= 4 ? MCHBAR_I965 : MCHBAR_I915; - u32 temp_lo, temp_hi = 0; - u64 mchbar_addr; - int ret; - - if (GRAPHICS_VER(dev_priv) >= 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_dbg(&dev_priv->drm, "failed bus alloc: %d\n", ret); - dev_priv->mch_res.start = 0; - return ret; - } - - if (GRAPHICS_VER(dev_priv) >= 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_i915_private *dev_priv) -{ - int mchbar_reg = GRAPHICS_VER(dev_priv) >= 4 ? MCHBAR_I965 : MCHBAR_I915; - u32 temp; - bool enabled; - - if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) - return; - - dev_priv->mchbar_need_disable = false; - - if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) { - 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_priv)) - return; - - dev_priv->mchbar_need_disable = true; - - /* Space is allocated or reserved, so enable it. */ - if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) { - 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_i915_private *dev_priv) -{ - int mchbar_reg = GRAPHICS_VER(dev_priv) >= 4 ? MCHBAR_I965 : MCHBAR_I915; - - if (dev_priv->mchbar_need_disable) { - if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) { - 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); -} - -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_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; - - return 0; - -out_free_wq: - destroy_workqueue(dev_priv->wq); -out_err: - drm_err(&dev_priv->drm, "Failed to allocate workqueues.\n"); - - return -ENOMEM; -} - -static void i915_workqueues_cleanup(struct drm_i915_private *dev_priv) -{ - destroy_workqueue(dev_priv->hotplug.dp_wq); - destroy_workqueue(dev_priv->wq); -} - -/* - * We don't keep the workarounds for pre-production hardware, so we expect our - * driver to fail on these machines in one way or another. A little warning on - * dmesg may help both the user and the bug triagers. - * - * Our policy for removing pre-production workarounds is to keep the - * current gen workarounds as a guide to the bring-up of the next gen - * (workarounds have a habit of persisting!). Anything older than that - * should be removed along with the complications they introduce. - */ -static void intel_detect_preproduction_hw(struct drm_i915_private *dev_priv) -{ - bool pre = false; - - pre |= IS_HSW_EARLY_SDV(dev_priv); - pre |= IS_SKYLAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x6; - pre |= IS_BROXTON(dev_priv) && INTEL_REVID(dev_priv) < 0xA; - pre |= IS_KABYLAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x1; - pre |= IS_GEMINILAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x3; - pre |= IS_ICELAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x7; - - if (pre) { - drm_err(&dev_priv->drm, "This is a pre-production stepping. " - "It may not be fully functional.\n"); - add_taint(TAINT_MACHINE_CHECK, LOCKDEP_STILL_OK); - } -} - -static void sanitize_gpu(struct drm_i915_private *i915) -{ - if (!INTEL_INFO(i915)->gpu_reset_clobbers_display) - __intel_gt_reset(&i915->gt, ALL_ENGINES); -} - -/** - * i915_driver_early_probe - 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_early_probe(struct drm_i915_private *dev_priv) -{ - int ret = 0; - - if (i915_inject_probe_failure(dev_priv)) - return -ENODEV; - - intel_device_info_subplatform_init(dev_priv); - intel_step_init(dev_priv); - - intel_uncore_mmio_debug_init_early(&dev_priv->mmio_debug); - intel_uncore_init_early(&dev_priv->uncore, dev_priv); - - spin_lock_init(&dev_priv->irq_lock); - spin_lock_init(&dev_priv->gpu_error.lock); - mutex_init(&dev_priv->backlight_lock); - - mutex_init(&dev_priv->sb_lock); - cpu_latency_qos_add_request(&dev_priv->sb_qos, PM_QOS_DEFAULT_VALUE); - - mutex_init(&dev_priv->audio.mutex); - mutex_init(&dev_priv->wm.wm_mutex); - mutex_init(&dev_priv->pps_mutex); - mutex_init(&dev_priv->hdcp_comp_mutex); - - i915_memcpy_init_early(dev_priv); - intel_runtime_pm_init_early(&dev_priv->runtime_pm); - - ret = i915_workqueues_init(dev_priv); - if (ret < 0) - return ret; - - ret = vlv_suspend_init(dev_priv); - if (ret < 0) - goto err_workqueues; - - ret = intel_region_ttm_device_init(dev_priv); - if (ret) - goto err_ttm; - - intel_wopcm_init_early(&dev_priv->wopcm); - - intel_gt_init_early(&dev_priv->gt, dev_priv); - - i915_gem_init_early(dev_priv); - - /* This must be called before any calls to HAS_PCH_* */ - intel_detect_pch(dev_priv); - - intel_pm_setup(dev_priv); - ret = intel_power_domains_init(dev_priv); - if (ret < 0) - goto err_gem; - intel_irq_init(dev_priv); - intel_init_display_hooks(dev_priv); - intel_init_clock_gating_hooks(dev_priv); - - intel_detect_preproduction_hw(dev_priv); - - return 0; - -err_gem: - i915_gem_cleanup_early(dev_priv); - intel_gt_driver_late_release(&dev_priv->gt); - intel_region_ttm_device_fini(dev_priv); -err_ttm: - vlv_suspend_cleanup(dev_priv); -err_workqueues: - i915_workqueues_cleanup(dev_priv); - return ret; -} - -/** - * i915_driver_late_release - cleanup the setup done in - * i915_driver_early_probe() - * @dev_priv: device private - */ -static void i915_driver_late_release(struct drm_i915_private *dev_priv) -{ - intel_irq_fini(dev_priv); - intel_power_domains_cleanup(dev_priv); - i915_gem_cleanup_early(dev_priv); - intel_gt_driver_late_release(&dev_priv->gt); - intel_region_ttm_device_fini(dev_priv); - vlv_suspend_cleanup(dev_priv); - i915_workqueues_cleanup(dev_priv); - - cpu_latency_qos_remove_request(&dev_priv->sb_qos); - mutex_destroy(&dev_priv->sb_lock); - - i915_params_free(&dev_priv->params); -} - -/** - * i915_driver_mmio_probe - 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_mmio_probe(struct drm_i915_private *dev_priv) -{ - int ret; - - if (i915_inject_probe_failure(dev_priv)) - return -ENODEV; - - ret = i915_get_bridge_dev(dev_priv); - if (ret < 0) - return ret; - - ret = intel_uncore_init_mmio(&dev_priv->uncore); - if (ret < 0) - goto err_bridge; - - /* Try to make sure MCHBAR is enabled before poking at it */ - intel_setup_mchbar(dev_priv); - intel_device_info_runtime_init(dev_priv); - - ret = intel_gt_init_mmio(&dev_priv->gt); - if (ret) - goto err_uncore; - - /* As early as possible, scrub existing GPU state before clobbering */ - sanitize_gpu(dev_priv); - - return 0; - -err_uncore: - intel_teardown_mchbar(dev_priv); - intel_uncore_fini_mmio(&dev_priv->uncore); -err_bridge: - pci_dev_put(dev_priv->bridge_dev); - - return ret; -} - -/** - * i915_driver_mmio_release - cleanup the setup done in i915_driver_mmio_probe() - * @dev_priv: device private - */ -static void i915_driver_mmio_release(struct drm_i915_private *dev_priv) -{ - intel_teardown_mchbar(dev_priv); - intel_uncore_fini_mmio(&dev_priv->uncore); - pci_dev_put(dev_priv->bridge_dev); -} - -static void intel_sanitize_options(struct drm_i915_private *dev_priv) -{ - intel_gvt_sanitize_options(dev_priv); -} - -/** - * i915_set_dma_info - set all relevant PCI dma info as configured for the - * platform - * @i915: valid i915 instance - * - * Set the dma max segment size, device and coherent masks. The dma mask set - * needs to occur before i915_ggtt_probe_hw. - * - * A couple of platforms have special needs. Address them as well. - * - */ -static int i915_set_dma_info(struct drm_i915_private *i915) -{ - unsigned int mask_size = INTEL_INFO(i915)->dma_mask_size; - int ret; - - GEM_BUG_ON(!mask_size); - - /* - * We don't have a max segment size, so set it to the max so sg's - * debugging layer doesn't complain - */ - dma_set_max_seg_size(i915->drm.dev, UINT_MAX); - - ret = dma_set_mask(i915->drm.dev, DMA_BIT_MASK(mask_size)); - if (ret) - goto mask_err; - - /* overlay on gen2 is broken and can't address above 1G */ - if (GRAPHICS_VER(i915) == 2) - mask_size = 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_I965G(i915) || IS_I965GM(i915)) - mask_size = 32; - - ret = dma_set_coherent_mask(i915->drm.dev, DMA_BIT_MASK(mask_size)); - if (ret) - goto mask_err; - - return 0; - -mask_err: - drm_err(&i915->drm, "Can't set DMA mask/consistent mask (%d)\n", ret); - return ret; -} - -/** - * i915_driver_hw_probe - 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_hw_probe(struct drm_i915_private *dev_priv) -{ - struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); - int ret; - - if (i915_inject_probe_failure(dev_priv)) - return -ENODEV; - - if (HAS_PPGTT(dev_priv)) { - if (intel_vgpu_active(dev_priv) && - !intel_vgpu_has_full_ppgtt(dev_priv)) { - i915_report_error(dev_priv, - "incompatible vGPU found, support for isolated ppGTT required\n"); - return -ENXIO; - } - } - - if (HAS_EXECLISTS(dev_priv)) { - /* - * Older GVT emulation depends upon intercepting CSB mmio, - * which we no longer use, preferring to use the HWSP cache - * instead. - */ - if (intel_vgpu_active(dev_priv) && - !intel_vgpu_has_hwsp_emulation(dev_priv)) { - i915_report_error(dev_priv, - "old vGPU host found, support for HWSP emulation required\n"); - return -ENXIO; - } - } - - intel_sanitize_options(dev_priv); - - /* needs to be done before ggtt probe */ - intel_dram_edram_detect(dev_priv); - - ret = i915_set_dma_info(dev_priv); - if (ret) - return ret; - - i915_perf_init(dev_priv); - - ret = i915_ggtt_probe_hw(dev_priv); - if (ret) - goto err_perf; - - ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, dev_priv->drm.driver); - if (ret) - goto err_ggtt; - - ret = i915_ggtt_init_hw(dev_priv); - if (ret) - goto err_ggtt; - - ret = intel_memory_regions_hw_probe(dev_priv); - if (ret) - goto err_ggtt; - - intel_gt_init_hw_early(&dev_priv->gt, &dev_priv->ggtt); - - ret = intel_gt_probe_lmem(&dev_priv->gt); - if (ret) - goto err_mem_regions; - - ret = i915_ggtt_enable_hw(dev_priv); - if (ret) { - drm_err(&dev_priv->drm, "failed to enable GGTT\n"); - goto err_mem_regions; - } - - pci_set_master(pdev); - - /* 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, and was defeatured. MSI interrupts seem to - * get lost on g4x as well, and interrupt delivery seems to stay - * properly dead afterwards. So we'll just disable them for all - * pre-gen5 chipsets. - * - * dp aux and gmbus irq on gen4 seems to be able to generate legacy - * interrupts even when in MSI mode. This results in spurious - * interrupt warnings if the legacy irq no. is shared with another - * device. The kernel then disables that interrupt source and so - * prevents the other device from working properly. - */ - if (GRAPHICS_VER(dev_priv) >= 5) { - if (pci_enable_msi(pdev) < 0) - drm_dbg(&dev_priv->drm, "can't enable MSI"); - } - - ret = intel_gvt_init(dev_priv); - if (ret) - goto err_msi; - - intel_opregion_setup(dev_priv); - - ret = intel_pcode_init(dev_priv); - if (ret) - goto err_msi; - - /* - * Fill the dram structure to get the system dram info. This will be - * used for memory latency calculation. - */ - intel_dram_detect(dev_priv); - - intel_bw_init_hw(dev_priv); - - return 0; - -err_msi: - if (pdev->msi_enabled) - pci_disable_msi(pdev); -err_mem_regions: - intel_memory_regions_driver_release(dev_priv); -err_ggtt: - i915_ggtt_driver_release(dev_priv); - i915_gem_drain_freed_objects(dev_priv); - i915_ggtt_driver_late_release(dev_priv); -err_perf: - i915_perf_fini(dev_priv); - return ret; -} - -/** - * i915_driver_hw_remove - cleanup the setup done in i915_driver_hw_probe() - * @dev_priv: device private - */ -static void i915_driver_hw_remove(struct drm_i915_private *dev_priv) -{ - struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); - - i915_perf_fini(dev_priv); - - if (pdev->msi_enabled) - pci_disable_msi(pdev); -} - -/** - * 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->drm; - - i915_gem_driver_register(dev_priv); - i915_pmu_register(dev_priv); - - intel_vgpu_register(dev_priv); - - /* Reveal our presence to userspace */ - if (drm_dev_register(dev, 0)) { - drm_err(&dev_priv->drm, - "Failed to register driver for userspace access!\n"); - return; - } - - i915_debugfs_register(dev_priv); - i915_setup_sysfs(dev_priv); - - /* Depends on sysfs having been initialized */ - i915_perf_register(dev_priv); - - intel_gt_driver_register(&dev_priv->gt); - - intel_display_driver_register(dev_priv); - - intel_power_domains_enable(dev_priv); - intel_runtime_pm_enable(&dev_priv->runtime_pm); - - intel_register_dsm_handler(); - - if (i915_switcheroo_register(dev_priv)) - drm_err(&dev_priv->drm, "Failed to register vga switcheroo!\n"); -} - -/** - * 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_switcheroo_unregister(dev_priv); - - intel_unregister_dsm_handler(); - - intel_runtime_pm_disable(&dev_priv->runtime_pm); - intel_power_domains_disable(dev_priv); - - intel_display_driver_unregister(dev_priv); - - intel_gt_driver_unregister(&dev_priv->gt); - - i915_perf_unregister(dev_priv); - i915_pmu_unregister(dev_priv); - - i915_teardown_sysfs(dev_priv); - drm_dev_unplug(&dev_priv->drm); - - i915_gem_driver_unregister(dev_priv); -} - -static void i915_welcome_messages(struct drm_i915_private *dev_priv) -{ - if (drm_debug_enabled(DRM_UT_DRIVER)) { - struct drm_printer p = drm_debug_printer("i915 device info:"); - - drm_printf(&p, "pciid=0x%04x rev=0x%02x platform=%s (subplatform=0x%x) gen=%i\n", - INTEL_DEVID(dev_priv), - INTEL_REVID(dev_priv), - intel_platform_name(INTEL_INFO(dev_priv)->platform), - intel_subplatform(RUNTIME_INFO(dev_priv), - INTEL_INFO(dev_priv)->platform), - GRAPHICS_VER(dev_priv)); - - intel_device_info_print_static(INTEL_INFO(dev_priv), &p); - intel_device_info_print_runtime(RUNTIME_INFO(dev_priv), &p); - intel_gt_info_print(&dev_priv->gt.info, &p); - } - - if (IS_ENABLED(CONFIG_DRM_I915_DEBUG)) - drm_info(&dev_priv->drm, "DRM_I915_DEBUG enabled\n"); - if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)) - drm_info(&dev_priv->drm, "DRM_I915_DEBUG_GEM enabled\n"); - if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)) - drm_info(&dev_priv->drm, - "DRM_I915_DEBUG_RUNTIME_PM enabled\n"); -} - -static struct drm_i915_private * -i915_driver_create(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - const struct intel_device_info *match_info = - (struct intel_device_info *)ent->driver_data; - struct intel_device_info *device_info; - struct drm_i915_private *i915; - - i915 = devm_drm_dev_alloc(&pdev->dev, &driver, - struct drm_i915_private, drm); - if (IS_ERR(i915)) - return i915; - - pci_set_drvdata(pdev, i915); - - /* Device parameters start as a copy of module parameters. */ - i915_params_copy(&i915->params, &i915_modparams); - - /* Setup the write-once "constant" device info */ - device_info = mkwrite_device_info(i915); - memcpy(device_info, match_info, sizeof(*device_info)); - RUNTIME_INFO(i915)->device_id = pdev->device; - - return i915; -} - -/** - * i915_driver_probe - setup chip and create an initial config - * @pdev: PCI device - * @ent: matching PCI ID entry - * - * The driver probe 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_probe(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - const struct intel_device_info *match_info = - (struct intel_device_info *)ent->driver_data; - struct drm_i915_private *i915; - int ret; - - i915 = i915_driver_create(pdev, ent); - if (IS_ERR(i915)) - return PTR_ERR(i915); - - /* Disable nuclear pageflip by default on pre-ILK */ - if (!i915->params.nuclear_pageflip && match_info->graphics_ver < 5) - i915->drm.driver_features &= ~DRIVER_ATOMIC; - - /* - * Check if we support fake LMEM -- for now we only unleash this for - * the live selftests(test-and-exit). - */ -#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) - if (IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM)) { - if (GRAPHICS_VER(i915) >= 9 && i915_selftest.live < 0 && - i915->params.fake_lmem_start) { - mkwrite_device_info(i915)->memory_regions = - REGION_SMEM | REGION_LMEM | REGION_STOLEN_SMEM; - GEM_BUG_ON(!HAS_LMEM(i915)); - } - } -#endif - - ret = pci_enable_device(pdev); - if (ret) - goto out_fini; - - ret = i915_driver_early_probe(i915); - if (ret < 0) - goto out_pci_disable; - - disable_rpm_wakeref_asserts(&i915->runtime_pm); - - intel_vgpu_detect(i915); - - ret = i915_driver_mmio_probe(i915); - if (ret < 0) - goto out_runtime_pm_put; - - ret = i915_driver_hw_probe(i915); - if (ret < 0) - goto out_cleanup_mmio; - - ret = intel_modeset_init_noirq(i915); - if (ret < 0) - goto out_cleanup_hw; - - ret = intel_irq_install(i915); - if (ret) - goto out_cleanup_modeset; - - ret = intel_modeset_init_nogem(i915); - if (ret) - goto out_cleanup_irq; - - ret = i915_gem_init(i915); - if (ret) - goto out_cleanup_modeset2; - - ret = intel_modeset_init(i915); - if (ret) - goto out_cleanup_gem; - - i915_driver_register(i915); - - enable_rpm_wakeref_asserts(&i915->runtime_pm); - - i915_welcome_messages(i915); - - i915->do_release = true; - - return 0; - -out_cleanup_gem: - i915_gem_suspend(i915); - i915_gem_driver_remove(i915); - i915_gem_driver_release(i915); -out_cleanup_modeset2: - /* FIXME clean up the error path */ - intel_modeset_driver_remove(i915); - intel_irq_uninstall(i915); - intel_modeset_driver_remove_noirq(i915); - goto out_cleanup_modeset; -out_cleanup_irq: - intel_irq_uninstall(i915); -out_cleanup_modeset: - intel_modeset_driver_remove_nogem(i915); -out_cleanup_hw: - i915_driver_hw_remove(i915); - intel_memory_regions_driver_release(i915); - i915_ggtt_driver_release(i915); - i915_gem_drain_freed_objects(i915); - i915_ggtt_driver_late_release(i915); -out_cleanup_mmio: - i915_driver_mmio_release(i915); -out_runtime_pm_put: - enable_rpm_wakeref_asserts(&i915->runtime_pm); - i915_driver_late_release(i915); -out_pci_disable: - pci_disable_device(pdev); -out_fini: - i915_probe_error(i915, "Device initialization failed (%d)\n", ret); - return ret; -} - -void i915_driver_remove(struct drm_i915_private *i915) -{ - disable_rpm_wakeref_asserts(&i915->runtime_pm); - - i915_driver_unregister(i915); - - /* Flush any external code that still may be under the RCU lock */ - synchronize_rcu(); - - i915_gem_suspend(i915); - - intel_gvt_driver_remove(i915); - - intel_modeset_driver_remove(i915); - - intel_irq_uninstall(i915); - - intel_modeset_driver_remove_noirq(i915); - - i915_reset_error_state(i915); - i915_gem_driver_remove(i915); - - intel_modeset_driver_remove_nogem(i915); - - i915_driver_hw_remove(i915); - - enable_rpm_wakeref_asserts(&i915->runtime_pm); -} - -static void i915_driver_release(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_runtime_pm *rpm = &dev_priv->runtime_pm; - - if (!dev_priv->do_release) - return; - - disable_rpm_wakeref_asserts(rpm); - - i915_gem_driver_release(dev_priv); - - intel_memory_regions_driver_release(dev_priv); - i915_ggtt_driver_release(dev_priv); - i915_gem_drain_freed_objects(dev_priv); - i915_ggtt_driver_late_release(dev_priv); - - i915_driver_mmio_release(dev_priv); - - enable_rpm_wakeref_asserts(rpm); - intel_runtime_pm_driver_release(rpm); - - i915_driver_late_release(dev_priv); -} - -static int i915_driver_open(struct drm_device *dev, struct drm_file *file) -{ - struct drm_i915_private *i915 = to_i915(dev); - int ret; - - ret = i915_gem_open(i915, 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. - */ -static void i915_driver_lastclose(struct drm_device *dev) -{ - struct drm_i915_private *i915 = to_i915(dev); - - intel_fbdev_restore_mode(dev); - - if (HAS_DISPLAY(i915)) - vga_switcheroo_process_delayed_switch(); -} - -static void i915_driver_postclose(struct drm_device *dev, struct drm_file *file) -{ - struct drm_i915_file_private *file_priv = file->driver_priv; - - i915_gem_context_close(file); - - kfree_rcu(file_priv, rcu); - - /* Catch up with all the deferred frees from "this" client */ - i915_gem_flush_free_objects(to_i915(dev)); -} - -static void intel_suspend_encoders(struct drm_i915_private *dev_priv) -{ - struct drm_device *dev = &dev_priv->drm; - struct intel_encoder *encoder; - - if (!HAS_DISPLAY(dev_priv)) - return; - - drm_modeset_lock_all(dev); - for_each_intel_encoder(dev, encoder) - if (encoder->suspend) - encoder->suspend(encoder); - drm_modeset_unlock_all(dev); -} - -static void intel_shutdown_encoders(struct drm_i915_private *dev_priv) -{ - struct drm_device *dev = &dev_priv->drm; - struct intel_encoder *encoder; - - if (!HAS_DISPLAY(dev_priv)) - return; - - drm_modeset_lock_all(dev); - for_each_intel_encoder(dev, encoder) - if (encoder->shutdown) - encoder->shutdown(encoder); - drm_modeset_unlock_all(dev); -} - -void i915_driver_shutdown(struct drm_i915_private *i915) -{ - disable_rpm_wakeref_asserts(&i915->runtime_pm); - intel_runtime_pm_disable(&i915->runtime_pm); - intel_power_domains_disable(i915); - - i915_gem_suspend(i915); - - if (HAS_DISPLAY(i915)) { - drm_kms_helper_poll_disable(&i915->drm); - - drm_atomic_helper_shutdown(&i915->drm); - } - - intel_dp_mst_suspend(i915); - - intel_runtime_pm_disable_interrupts(i915); - intel_hpd_cancel_work(i915); - - intel_suspend_encoders(i915); - intel_shutdown_encoders(i915); - - intel_dmc_ucode_suspend(i915); - - /* - * The only requirement is to reboot with display DC states disabled, - * for now leaving all display power wells in the INIT power domain - * enabled. - * - * TODO: - * - unify the pci_driver::shutdown sequence here with the - * pci_driver.driver.pm.poweroff,poweroff_late sequence. - * - unify the driver remove and system/runtime suspend sequences with - * the above unified shutdown/poweroff sequence. - */ - intel_power_domains_driver_remove(i915); - enable_rpm_wakeref_asserts(&i915->runtime_pm); - - intel_runtime_pm_driver_release(&i915->runtime_pm); -} - -static bool suspend_to_idle(struct drm_i915_private *dev_priv) -{ -#if IS_ENABLED(CONFIG_ACPI_SLEEP) - if (acpi_target_system_state() < ACPI_STATE_S3) - return true; -#endif - return false; -} - -static int i915_drm_prepare(struct drm_device *dev) -{ - struct drm_i915_private *i915 = to_i915(dev); - - /* - * NB intel_display_suspend() may issue new requests after we've - * ostensibly marked the GPU as ready-to-sleep here. We need to - * split out that work and pull it forward so that after point, - * the GPU is not woken again. - */ - return i915_gem_backup_suspend(i915); -} - -static int i915_drm_suspend(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = to_i915(dev); - struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); - pci_power_t opregion_target_state; - - disable_rpm_wakeref_asserts(&dev_priv->runtime_pm); - - /* We do a lot of poking in a lot of registers, make sure they work - * properly. */ - intel_power_domains_disable(dev_priv); - if (HAS_DISPLAY(dev_priv)) - drm_kms_helper_poll_disable(dev); - - pci_save_state(pdev); - - intel_display_suspend(dev); - - intel_dp_mst_suspend(dev_priv); - - intel_runtime_pm_disable_interrupts(dev_priv); - intel_hpd_cancel_work(dev_priv); - - intel_suspend_encoders(dev_priv); - - intel_suspend_hw(dev_priv); - - /* Must be called before GGTT is suspended. */ - intel_dpt_suspend(dev_priv); - i915_ggtt_suspend(&dev_priv->ggtt); - - i915_save_display(dev_priv); - - opregion_target_state = suspend_to_idle(dev_priv) ? PCI_D1 : PCI_D3cold; - intel_opregion_suspend(dev_priv, opregion_target_state); - - intel_fbdev_set_suspend(dev, FBINFO_STATE_SUSPENDED, true); - - dev_priv->suspend_count++; - - intel_dmc_ucode_suspend(dev_priv); - - enable_rpm_wakeref_asserts(&dev_priv->runtime_pm); - - return 0; -} - -static enum i915_drm_suspend_mode -get_suspend_mode(struct drm_i915_private *dev_priv, bool hibernate) -{ - if (hibernate) - return I915_DRM_SUSPEND_HIBERNATE; - - if (suspend_to_idle(dev_priv)) - return I915_DRM_SUSPEND_IDLE; - - return I915_DRM_SUSPEND_MEM; -} - -static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation) -{ - struct drm_i915_private *dev_priv = to_i915(dev); - struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); - struct intel_runtime_pm *rpm = &dev_priv->runtime_pm; - int ret; - - disable_rpm_wakeref_asserts(rpm); - - i915_gem_suspend_late(dev_priv); - - intel_uncore_suspend(&dev_priv->uncore); - - intel_power_domains_suspend(dev_priv, - get_suspend_mode(dev_priv, hibernation)); - - intel_display_power_suspend_late(dev_priv); - - ret = vlv_suspend_complete(dev_priv); - if (ret) { - drm_err(&dev_priv->drm, "Suspend complete failed: %d\n", ret); - intel_power_domains_resume(dev_priv); - - goto out; - } - - /* - * FIXME: Temporary hammer to avoid freezing the machine on our DGFX - * This should be totally removed when we handle the pci states properly - * on runtime PM and on s2idle cases. - */ - if (suspend_to_idle(dev_priv)) - pci_d3cold_disable(pdev); - - pci_disable_device(pdev); - /* - * During hibernation on some platforms the BIOS may try to access - * the device even though it's already in D3 and hang the machine. So - * leave the device in D0 on those platforms and hope the BIOS will - * power down the device properly. The issue was seen on multiple old - * GENs with different BIOS vendors, so having an explicit blacklist - * is inpractical; apply the workaround on everything pre GEN6. The - * platforms where the issue was seen: - * Lenovo Thinkpad X301, X61s, X60, T60, X41 - * Fujitsu FSC S7110 - * Acer Aspire 1830T - */ - if (!(hibernation && GRAPHICS_VER(dev_priv) < 6)) - pci_set_power_state(pdev, PCI_D3hot); - -out: - enable_rpm_wakeref_asserts(rpm); - if (!dev_priv->uncore.user_forcewake_count) - intel_runtime_pm_driver_release(rpm); - - return ret; -} - -int i915_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state) -{ - int error; - - if (drm_WARN_ON_ONCE(&i915->drm, state.event != PM_EVENT_SUSPEND && - state.event != PM_EVENT_FREEZE)) - return -EINVAL; - - if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) - return 0; - - error = i915_drm_suspend(&i915->drm); - if (error) - return error; - - return i915_drm_suspend_late(&i915->drm, false); -} - -static int i915_drm_resume(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = to_i915(dev); - int ret; - - disable_rpm_wakeref_asserts(&dev_priv->runtime_pm); - - ret = intel_pcode_init(dev_priv); - if (ret) - return ret; - - sanitize_gpu(dev_priv); - - ret = i915_ggtt_enable_hw(dev_priv); - if (ret) - drm_err(&dev_priv->drm, "failed to re-enable GGTT\n"); - - i915_ggtt_resume(&dev_priv->ggtt); - /* Must be called after GGTT is resumed. */ - intel_dpt_resume(dev_priv); - - intel_dmc_ucode_resume(dev_priv); - - i915_restore_display(dev_priv); - intel_pps_unlock_regs_wa(dev_priv); - - intel_init_pch_refclk(dev_priv); - - /* - * Interrupts have to be enabled before any batches are run. If not the - * GPU will hang. i915_gem_init_hw() will initiate batches to - * update/restore the context. - * - * drm_mode_config_reset() needs AUX interrupts. - * - * Modeset enabling in intel_modeset_init_hw() also needs working - * interrupts. - */ - intel_runtime_pm_enable_interrupts(dev_priv); - - if (HAS_DISPLAY(dev_priv)) - drm_mode_config_reset(dev); - - i915_gem_resume(dev_priv); - - intel_modeset_init_hw(dev_priv); - intel_init_clock_gating(dev_priv); - intel_hpd_init(dev_priv); - - /* MST sideband requires HPD interrupts enabled */ - intel_dp_mst_resume(dev_priv); - intel_display_resume(dev); - - intel_hpd_poll_disable(dev_priv); - if (HAS_DISPLAY(dev_priv)) - drm_kms_helper_poll_enable(dev); - - intel_opregion_resume(dev_priv); - - intel_fbdev_set_suspend(dev, FBINFO_STATE_RUNNING, false); - - intel_power_domains_enable(dev_priv); - - intel_gvt_resume(dev_priv); - - enable_rpm_wakeref_asserts(&dev_priv->runtime_pm); - - return 0; -} - -static int i915_drm_resume_early(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = to_i915(dev); - struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); - int ret; - - /* - * We have a resume ordering issue with the snd-hda driver also - * requiring our device to be power up. Due to the lack of a - * parent/child relationship we currently solve this with an early - * resume hook. - * - * FIXME: This should be solved with a special hdmi sink device or - * similar so that power domains can be employed. - */ - - /* - * Note that we need to set the power state explicitly, since we - * powered off the device during freeze and the PCI core won't power - * it back up for us during thaw. Powering off the device during - * freeze is not a hard requirement though, and during the - * suspend/resume phases the PCI core makes sure we get here with the - * device powered on. So in case we change our freeze logic and keep - * the device powered we can also remove the following set power state - * call. - */ - ret = pci_set_power_state(pdev, PCI_D0); - if (ret) { - drm_err(&dev_priv->drm, - "failed to set PCI D0 power state (%d)\n", ret); - return ret; - } - - /* - * Note that pci_enable_device() first enables any parent bridge - * device and only then sets the power state for this device. The - * bridge enabling is a nop though, since bridge devices are resumed - * first. The order of enabling power and enabling the device is - * imposed by the PCI core as described above, so here we preserve the - * same order for the freeze/thaw phases. - * - * TODO: eventually we should remove pci_disable_device() / - * pci_enable_enable_device() from suspend/resume. Due to how they - * depend on the device enable refcount we can't anyway depend on them - * disabling/enabling the device. - */ - if (pci_enable_device(pdev)) - return -EIO; - - pci_set_master(pdev); - - pci_d3cold_enable(pdev); - - disable_rpm_wakeref_asserts(&dev_priv->runtime_pm); - - ret = vlv_resume_prepare(dev_priv, false); - if (ret) - drm_err(&dev_priv->drm, - "Resume prepare failed: %d, continuing anyway\n", ret); - - intel_uncore_resume_early(&dev_priv->uncore); - - intel_gt_check_and_clear_faults(&dev_priv->gt); - - intel_display_power_resume_early(dev_priv); - - intel_power_domains_resume(dev_priv); - - enable_rpm_wakeref_asserts(&dev_priv->runtime_pm); - - return ret; -} - -int i915_resume_switcheroo(struct drm_i915_private *i915) -{ - int ret; - - if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) - return 0; - - ret = i915_drm_resume_early(&i915->drm); - if (ret) - return ret; - - return i915_drm_resume(&i915->drm); -} - -static int i915_pm_prepare(struct device *kdev) -{ - struct drm_i915_private *i915 = kdev_to_i915(kdev); - - if (!i915) { - dev_err(kdev, "DRM not initialized, aborting suspend.\n"); - return -ENODEV; - } - - if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) - return 0; - - return i915_drm_prepare(&i915->drm); -} - -static int i915_pm_suspend(struct device *kdev) -{ - struct drm_i915_private *i915 = kdev_to_i915(kdev); - - if (!i915) { - dev_err(kdev, "DRM not initialized, aborting suspend.\n"); - return -ENODEV; - } - - if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) - return 0; - - return i915_drm_suspend(&i915->drm); -} - -static int i915_pm_suspend_late(struct device *kdev) -{ - struct drm_i915_private *i915 = kdev_to_i915(kdev); - - /* - * We have a suspend ordering issue with the snd-hda driver also - * requiring our device to be power up. Due to the lack of a - * parent/child relationship we currently solve this with an late - * suspend hook. - * - * FIXME: This should be solved with a special hdmi sink device or - * similar so that power domains can be employed. - */ - if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) - return 0; - - return i915_drm_suspend_late(&i915->drm, false); -} - -static int i915_pm_poweroff_late(struct device *kdev) -{ - struct drm_i915_private *i915 = kdev_to_i915(kdev); - - if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) - return 0; - - return i915_drm_suspend_late(&i915->drm, true); -} - -static int i915_pm_resume_early(struct device *kdev) -{ - struct drm_i915_private *i915 = kdev_to_i915(kdev); - - if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) - return 0; - - return i915_drm_resume_early(&i915->drm); -} - -static int i915_pm_resume(struct device *kdev) -{ - struct drm_i915_private *i915 = kdev_to_i915(kdev); - - if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) - return 0; - - return i915_drm_resume(&i915->drm); -} - -/* freeze: before creating the hibernation_image */ -static int i915_pm_freeze(struct device *kdev) -{ - struct drm_i915_private *i915 = kdev_to_i915(kdev); - int ret; - - if (i915->drm.switch_power_state != DRM_SWITCH_POWER_OFF) { - ret = i915_drm_suspend(&i915->drm); - if (ret) - return ret; - } - - ret = i915_gem_freeze(i915); - if (ret) - return ret; - - return 0; -} - -static int i915_pm_freeze_late(struct device *kdev) -{ - struct drm_i915_private *i915 = kdev_to_i915(kdev); - int ret; - - if (i915->drm.switch_power_state != DRM_SWITCH_POWER_OFF) { - ret = i915_drm_suspend_late(&i915->drm, true); - if (ret) - return ret; - } - - ret = i915_gem_freeze_late(i915); - if (ret) - return ret; - - return 0; -} - -/* thaw: called after creating the hibernation image, but before turning off. */ -static int i915_pm_thaw_early(struct device *kdev) -{ - return i915_pm_resume_early(kdev); -} - -static int i915_pm_thaw(struct device *kdev) -{ - return i915_pm_resume(kdev); -} - -/* restore: called after loading the hibernation image. */ -static int i915_pm_restore_early(struct device *kdev) -{ - return i915_pm_resume_early(kdev); -} - -static int i915_pm_restore(struct device *kdev) -{ - return i915_pm_resume(kdev); -} - -static int intel_runtime_suspend(struct device *kdev) -{ - struct drm_i915_private *dev_priv = kdev_to_i915(kdev); - struct intel_runtime_pm *rpm = &dev_priv->runtime_pm; - struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); - int ret; - - if (drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_RUNTIME_PM(dev_priv))) - return -ENODEV; - - drm_dbg_kms(&dev_priv->drm, "Suspending device\n"); - - disable_rpm_wakeref_asserts(rpm); - - /* - * We are safe here against re-faults, since the fault handler takes - * an RPM reference. - */ - i915_gem_runtime_suspend(dev_priv); - - intel_gt_runtime_suspend(&dev_priv->gt); - - intel_runtime_pm_disable_interrupts(dev_priv); - - intel_uncore_suspend(&dev_priv->uncore); - - intel_display_power_suspend(dev_priv); - - ret = vlv_suspend_complete(dev_priv); - if (ret) { - drm_err(&dev_priv->drm, - "Runtime suspend failed, disabling it (%d)\n", ret); - intel_uncore_runtime_resume(&dev_priv->uncore); - - intel_runtime_pm_enable_interrupts(dev_priv); - - intel_gt_runtime_resume(&dev_priv->gt); - - enable_rpm_wakeref_asserts(rpm); - - return ret; - } - - enable_rpm_wakeref_asserts(rpm); - intel_runtime_pm_driver_release(rpm); - - if (intel_uncore_arm_unclaimed_mmio_detection(&dev_priv->uncore)) - drm_err(&dev_priv->drm, - "Unclaimed access detected prior to suspending\n"); - - /* - * FIXME: Temporary hammer to avoid freezing the machine on our DGFX - * This should be totally removed when we handle the pci states properly - * on runtime PM and on s2idle cases. - */ - pci_d3cold_disable(pdev); - rpm->suspended = true; - - /* - * FIXME: We really should find a document that references the arguments - * used below! - */ - if (IS_BROADWELL(dev_priv)) { - /* - * On Broadwell, if we use PCI_D1 the PCH DDI ports will stop - * being detected, and the call we do at intel_runtime_resume() - * won't be able to restore them. Since PCI_D3hot matches the - * actual specification and appears to be working, use it. - */ - intel_opregion_notify_adapter(dev_priv, PCI_D3hot); - } else { - /* - * current versions of firmware which depend on this opregion - * notification have repurposed the D1 definition to mean - * "runtime suspended" vs. what you would normally expect (D3) - * to distinguish it from notifications that might be sent via - * the suspend path. - */ - intel_opregion_notify_adapter(dev_priv, PCI_D1); - } - - assert_forcewakes_inactive(&dev_priv->uncore); - - if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv)) - intel_hpd_poll_enable(dev_priv); - - drm_dbg_kms(&dev_priv->drm, "Device suspended\n"); - return 0; -} - -static int intel_runtime_resume(struct device *kdev) -{ - struct drm_i915_private *dev_priv = kdev_to_i915(kdev); - struct intel_runtime_pm *rpm = &dev_priv->runtime_pm; - struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); - int ret; - - if (drm_WARN_ON_ONCE(&dev_priv->drm, !HAS_RUNTIME_PM(dev_priv))) - return -ENODEV; - - drm_dbg_kms(&dev_priv->drm, "Resuming device\n"); - - drm_WARN_ON_ONCE(&dev_priv->drm, atomic_read(&rpm->wakeref_count)); - disable_rpm_wakeref_asserts(rpm); - - intel_opregion_notify_adapter(dev_priv, PCI_D0); - rpm->suspended = false; - pci_d3cold_enable(pdev); - if (intel_uncore_unclaimed_mmio(&dev_priv->uncore)) - drm_dbg(&dev_priv->drm, - "Unclaimed access during suspend, bios?\n"); - - intel_display_power_resume(dev_priv); - - ret = vlv_resume_prepare(dev_priv, true); - - intel_uncore_runtime_resume(&dev_priv->uncore); - - intel_runtime_pm_enable_interrupts(dev_priv); - - /* - * No point of rolling back things in case of an error, as the best - * we can do is to hope that things will still work (and disable RPM). - */ - intel_gt_runtime_resume(&dev_priv->gt); - - /* - * On VLV/CHV display interrupts are part of the display - * power well, so hpd is reinitialized from there. For - * everyone else do it here. - */ - if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv)) { - intel_hpd_init(dev_priv); - intel_hpd_poll_disable(dev_priv); - } - - intel_enable_ipc(dev_priv); - - enable_rpm_wakeref_asserts(rpm); - - if (ret) - drm_err(&dev_priv->drm, - "Runtime resume failed, disabling it (%d)\n", ret); - else - drm_dbg_kms(&dev_priv->drm, "Device resumed\n"); - - return ret; -} - -const struct dev_pm_ops i915_pm_ops = { - /* - * S0ix (via system suspend) and S3 event handlers [PMSG_SUSPEND, - * PMSG_RESUME] - */ - .prepare = i915_pm_prepare, - .suspend = i915_pm_suspend, - .suspend_late = i915_pm_suspend_late, - .resume_early = i915_pm_resume_early, - .resume = i915_pm_resume, - - /* - * S4 event handlers - * @freeze, @freeze_late : called (1) before creating the - * hibernation image [PMSG_FREEZE] and - * (2) after rebooting, before restoring - * the image [PMSG_QUIESCE] - * @thaw, @thaw_early : called (1) after creating the hibernation - * image, before writing it [PMSG_THAW] - * and (2) after failing to create or - * restore the image [PMSG_RECOVER] - * @poweroff, @poweroff_late: called after writing the hibernation - * image, before rebooting [PMSG_HIBERNATE] - * @restore, @restore_early : called after rebooting and restoring the - * hibernation image [PMSG_RESTORE] - */ - .freeze = i915_pm_freeze, - .freeze_late = i915_pm_freeze_late, - .thaw_early = i915_pm_thaw_early, - .thaw = i915_pm_thaw, - .poweroff = i915_pm_suspend, - .poweroff_late = i915_pm_poweroff_late, - .restore_early = i915_pm_restore_early, - .restore = i915_pm_restore, - - /* S0ix (via runtime suspend) event handlers */ - .runtime_suspend = intel_runtime_suspend, - .runtime_resume = intel_runtime_resume, -}; - -static const struct file_operations i915_driver_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release_noglobal, - .unlocked_ioctl = drm_ioctl, - .mmap = i915_gem_mmap, - .poll = drm_poll, - .read = drm_read, - .compat_ioctl = i915_ioc32_compat_ioctl, - .llseek = noop_llseek, -}; - -static int -i915_gem_reject_pin_ioctl(struct drm_device *dev, void *data, - struct drm_file *file) -{ - return -ENODEV; -} - -static 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_ioctl, 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, drm_invalid_op, DRM_AUTH), - DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER2_WR, i915_gem_execbuffer2_ioctl, 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_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_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_CREATE_EXT, i915_gem_create_ext_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_OFFSET, i915_gem_mmap_offset_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_ioctl, DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(I915_GEM_GET_TILING, i915_gem_get_tiling_ioctl, 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_ioctl, 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_ioctl, DRM_MASTER), - DRM_IOCTL_DEF_DRV(I915_OVERLAY_ATTRS, intel_overlay_attrs_ioctl, DRM_MASTER), - DRM_IOCTL_DEF_DRV(I915_SET_SPRITE_COLORKEY, intel_sprite_set_colorkey_ioctl, DRM_MASTER), - DRM_IOCTL_DEF_DRV(I915_GET_SPRITE_COLORKEY, drm_noop, DRM_MASTER), - DRM_IOCTL_DEF_DRV(I915_GEM_WAIT, i915_gem_wait_ioctl, DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_CREATE_EXT, 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_gem_context_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), - DRM_IOCTL_DEF_DRV(I915_PERF_OPEN, i915_perf_open_ioctl, DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(I915_PERF_ADD_CONFIG, i915_perf_add_config_ioctl, DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(I915_PERF_REMOVE_CONFIG, i915_perf_remove_config_ioctl, DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(I915_QUERY, i915_query_ioctl, DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(I915_GEM_VM_CREATE, i915_gem_vm_create_ioctl, DRM_RENDER_ALLOW), - DRM_IOCTL_DEF_DRV(I915_GEM_VM_DESTROY, i915_gem_vm_destroy_ioctl, DRM_RENDER_ALLOW), -}; - -static const struct drm_driver driver = { - /* Don't use MTRRs here; the Xserver or userspace app should - * deal with them for Intel hardware. - */ - .driver_features = - DRIVER_GEM | - DRIVER_RENDER | DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_SYNCOBJ | - DRIVER_SYNCOBJ_TIMELINE, - .release = i915_driver_release, - .open = i915_driver_open, - .lastclose = i915_driver_lastclose, - .postclose = i915_driver_postclose, - - .prime_handle_to_fd = drm_gem_prime_handle_to_fd, - .prime_fd_to_handle = drm_gem_prime_fd_to_handle, - .gem_prime_import = i915_gem_prime_import, - - .dumb_create = i915_gem_dumb_create, - .dumb_map_offset = i915_gem_dumb_mmap_offset, - - .ioctls = i915_ioctls, - .num_ioctls = ARRAY_SIZE(i915_ioctls), - .fops = &i915_driver_fops, - .name = DRIVER_NAME, - .desc = DRIVER_DESC, - .date = DRIVER_DATE, - .major = DRIVER_MAJOR, - .minor = DRIVER_MINOR, - .patchlevel = DRIVER_PATCHLEVEL, -}; |