From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/i915/selftests/mock_gem_device.c | 252 +++++++++++++++++++++++ 1 file changed, 252 insertions(+) create mode 100644 drivers/gpu/drm/i915/selftests/mock_gem_device.c (limited to 'drivers/gpu/drm/i915/selftests/mock_gem_device.c') diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c new file mode 100644 index 000000000..fff11c90f --- /dev/null +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c @@ -0,0 +1,252 @@ +/* + * Copyright © 2016 Intel Corporation + * + * 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, sublicense, + * 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 NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ + +#include +#include +#include + +#include + +#include "gt/intel_gt.h" +#include "gt/intel_gt_requests.h" +#include "gt/mock_engine.h" +#include "intel_memory_region.h" +#include "intel_region_ttm.h" + +#include "mock_request.h" +#include "mock_gem_device.h" +#include "mock_gtt.h" +#include "mock_uncore.h" +#include "mock_region.h" + +#include "gem/selftests/mock_context.h" +#include "gem/selftests/mock_gem_object.h" + +void mock_device_flush(struct drm_i915_private *i915) +{ + struct intel_gt *gt = to_gt(i915); + struct intel_engine_cs *engine; + enum intel_engine_id id; + + do { + for_each_engine(engine, gt, id) + mock_engine_flush(engine); + } while (intel_gt_retire_requests_timeout(gt, MAX_SCHEDULE_TIMEOUT, + NULL)); +} + +static void mock_device_release(struct drm_device *dev) +{ + struct drm_i915_private *i915 = to_i915(dev); + + if (!i915->do_release) + goto out; + + mock_device_flush(i915); + intel_gt_driver_remove(to_gt(i915)); + + i915_gem_drain_workqueue(i915); + i915_gem_drain_freed_objects(i915); + + mock_fini_ggtt(to_gt(i915)->ggtt); + destroy_workqueue(i915->wq); + + intel_region_ttm_device_fini(i915); + intel_gt_driver_late_release_all(i915); + intel_memory_regions_driver_release(i915); + + drm_mode_config_cleanup(&i915->drm); + +out: + i915_params_free(&i915->params); +} + +static const struct drm_driver mock_driver = { + .name = "mock", + .driver_features = DRIVER_GEM, + .release = mock_device_release, +}; + +static void release_dev(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + + kfree(pdev); +} + +static int pm_domain_resume(struct device *dev) +{ + return pm_generic_runtime_resume(dev); +} + +static int pm_domain_suspend(struct device *dev) +{ + return pm_generic_runtime_suspend(dev); +} + +static struct dev_pm_domain pm_domain = { + .ops = { + .runtime_suspend = pm_domain_suspend, + .runtime_resume = pm_domain_resume, + }, +}; + +static void mock_gt_probe(struct drm_i915_private *i915) +{ + i915->gt[0] = &i915->gt0; + i915->gt[0]->name = "Mock GT"; +} + +struct drm_i915_private *mock_gem_device(void) +{ +#if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU) + static struct dev_iommu fake_iommu = { .priv = (void *)-1 }; +#endif + struct drm_i915_private *i915; + struct pci_dev *pdev; + int ret; + + pdev = kzalloc(sizeof(*pdev), GFP_KERNEL); + if (!pdev) + return NULL; + device_initialize(&pdev->dev); + pdev->class = PCI_BASE_CLASS_DISPLAY << 16; + pdev->dev.release = release_dev; + dev_set_name(&pdev->dev, "mock"); + dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + +#if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU) + /* HACK to disable iommu for the fake device; force identity mapping */ + pdev->dev.iommu = &fake_iommu; +#endif + if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) { + put_device(&pdev->dev); + return NULL; + } + + i915 = devm_drm_dev_alloc(&pdev->dev, &mock_driver, + struct drm_i915_private, drm); + if (IS_ERR(i915)) { + pr_err("Failed to allocate mock GEM device: err=%ld\n", PTR_ERR(i915)); + devres_release_group(&pdev->dev, NULL); + put_device(&pdev->dev); + + return NULL; + } + + pci_set_drvdata(pdev, i915); + + dev_pm_domain_set(&pdev->dev, &pm_domain); + pm_runtime_enable(&pdev->dev); + pm_runtime_dont_use_autosuspend(&pdev->dev); + if (pm_runtime_enabled(&pdev->dev)) + WARN_ON(pm_runtime_get_sync(&pdev->dev)); + + + i915_params_copy(&i915->params, &i915_modparams); + + intel_runtime_pm_init_early(&i915->runtime_pm); + /* wakeref tracking has significant overhead */ + i915->runtime_pm.no_wakeref_tracking = true; + + /* Using the global GTT may ask questions about KMS users, so prepare */ + drm_mode_config_init(&i915->drm); + + RUNTIME_INFO(i915)->graphics.ip.ver = -1; + + RUNTIME_INFO(i915)->page_sizes = + I915_GTT_PAGE_SIZE_4K | + I915_GTT_PAGE_SIZE_64K | + I915_GTT_PAGE_SIZE_2M; + + RUNTIME_INFO(i915)->memory_regions = REGION_SMEM; + intel_memory_regions_hw_probe(i915); + + spin_lock_init(&i915->gpu_error.lock); + + i915_gem_init__mm(i915); + intel_root_gt_init_early(i915); + mock_uncore_init(&i915->uncore, i915); + atomic_inc(&to_gt(i915)->wakeref.count); /* disable; no hw support */ + to_gt(i915)->awake = -ENODEV; + mock_gt_probe(i915); + + ret = intel_region_ttm_device_init(i915); + if (ret) + goto err_ttm; + + i915->wq = alloc_ordered_workqueue("mock", 0); + if (!i915->wq) + goto err_drv; + + mock_init_contexts(i915); + + /* allocate the ggtt */ + ret = intel_gt_assign_ggtt(to_gt(i915)); + if (ret) + goto err_unlock; + + mock_init_ggtt(to_gt(i915)); + to_gt(i915)->vm = i915_vm_get(&to_gt(i915)->ggtt->vm); + + RUNTIME_INFO(i915)->platform_engine_mask = BIT(0); + to_gt(i915)->info.engine_mask = BIT(0); + + to_gt(i915)->engine[RCS0] = mock_engine(i915, "mock", RCS0); + if (!to_gt(i915)->engine[RCS0]) + goto err_unlock; + + if (mock_engine_init(to_gt(i915)->engine[RCS0])) + goto err_context; + + __clear_bit(I915_WEDGED, &to_gt(i915)->reset.flags); + intel_engines_driver_register(i915); + + i915->do_release = true; + ida_init(&i915->selftest.mock_region_instances); + + return i915; + +err_context: + intel_gt_driver_remove(to_gt(i915)); +err_unlock: + destroy_workqueue(i915->wq); +err_drv: + intel_region_ttm_device_fini(i915); +err_ttm: + intel_gt_driver_late_release_all(i915); + intel_memory_regions_driver_release(i915); + drm_mode_config_cleanup(&i915->drm); + mock_destroy_device(i915); + + return NULL; +} + +void mock_destroy_device(struct drm_i915_private *i915) +{ + struct device *dev = i915->drm.dev; + + devres_release_group(dev, NULL); + put_device(dev); +} -- cgit v1.2.3