diff options
Diffstat (limited to 'drivers/gpu/drm/i915/selftests/mock_gem_device.c')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/mock_gem_device.c | 226 |
1 files changed, 226 insertions, 0 deletions
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 000000000000..9f24c5da3f8d --- /dev/null +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c @@ -0,0 +1,226 @@ +/* + * 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 <linux/pm_runtime.h> + +#include "mock_engine.h" +#include "mock_context.h" +#include "mock_request.h" +#include "mock_gem_device.h" +#include "mock_gem_object.h" +#include "mock_gtt.h" + +void mock_device_flush(struct drm_i915_private *i915) +{ + struct intel_engine_cs *engine; + enum intel_engine_id id; + + lockdep_assert_held(&i915->drm.struct_mutex); + + for_each_engine(engine, i915, id) + mock_engine_flush(engine); + + i915_gem_retire_requests(i915); +} + +static void mock_device_release(struct drm_device *dev) +{ + struct drm_i915_private *i915 = to_i915(dev); + struct intel_engine_cs *engine; + enum intel_engine_id id; + + mutex_lock(&i915->drm.struct_mutex); + mock_device_flush(i915); + mutex_unlock(&i915->drm.struct_mutex); + + cancel_delayed_work_sync(&i915->gt.retire_work); + cancel_delayed_work_sync(&i915->gt.idle_work); + + mutex_lock(&i915->drm.struct_mutex); + for_each_engine(engine, i915, id) + mock_engine_free(engine); + i915_gem_context_fini(i915); + mutex_unlock(&i915->drm.struct_mutex); + + drain_workqueue(i915->wq); + i915_gem_drain_freed_objects(i915); + + mutex_lock(&i915->drm.struct_mutex); + mock_fini_ggtt(i915); + i915_gem_timeline_fini(&i915->gt.global_timeline); + mutex_unlock(&i915->drm.struct_mutex); + + destroy_workqueue(i915->wq); + + kmem_cache_destroy(i915->dependencies); + kmem_cache_destroy(i915->requests); + kmem_cache_destroy(i915->vmas); + kmem_cache_destroy(i915->objects); + + drm_dev_fini(&i915->drm); + put_device(&i915->drm.pdev->dev); +} + +static struct drm_driver mock_driver = { + .name = "mock", + .driver_features = DRIVER_GEM, + .release = mock_device_release, + + .gem_close_object = i915_gem_close_object, + .gem_free_object_unlocked = i915_gem_free_object, +}; + +static void release_dev(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + + kfree(pdev); +} + +static void mock_retire_work_handler(struct work_struct *work) +{ +} + +static void mock_idle_work_handler(struct work_struct *work) +{ +} + +struct drm_i915_private *mock_gem_device(void) +{ + struct drm_i915_private *i915; + struct intel_engine_cs *engine; + enum intel_engine_id id; + struct pci_dev *pdev; + int err; + + pdev = kzalloc(sizeof(*pdev) + sizeof(*i915), GFP_KERNEL); + if (!pdev) + goto err; + + device_initialize(&pdev->dev); + pdev->dev.release = release_dev; + dev_set_name(&pdev->dev, "mock"); + dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + + pm_runtime_dont_use_autosuspend(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); + + i915 = (struct drm_i915_private *)(pdev + 1); + pci_set_drvdata(pdev, i915); + + err = drm_dev_init(&i915->drm, &mock_driver, &pdev->dev); + if (err) { + pr_err("Failed to initialise mock GEM device: err=%d\n", err); + goto put_device; + } + i915->drm.pdev = pdev; + i915->drm.dev_private = i915; + + /* Using the global GTT may ask questions about KMS users, so prepare */ + drm_mode_config_init(&i915->drm); + + mkwrite_device_info(i915)->gen = -1; + + spin_lock_init(&i915->mm.object_stat_lock); + + init_waitqueue_head(&i915->gpu_error.wait_queue); + init_waitqueue_head(&i915->gpu_error.reset_queue); + + i915->wq = alloc_ordered_workqueue("mock", 0); + if (!i915->wq) + goto put_device; + + INIT_WORK(&i915->mm.free_work, __i915_gem_free_work); + init_llist_head(&i915->mm.free_list); + INIT_LIST_HEAD(&i915->mm.unbound_list); + INIT_LIST_HEAD(&i915->mm.bound_list); + + ida_init(&i915->context_hw_ida); + + INIT_DELAYED_WORK(&i915->gt.retire_work, mock_retire_work_handler); + INIT_DELAYED_WORK(&i915->gt.idle_work, mock_idle_work_handler); + + i915->gt.awake = true; + + i915->objects = KMEM_CACHE(mock_object, SLAB_HWCACHE_ALIGN); + if (!i915->objects) + goto err_wq; + + i915->vmas = KMEM_CACHE(i915_vma, SLAB_HWCACHE_ALIGN); + if (!i915->vmas) + goto err_objects; + + i915->requests = KMEM_CACHE(mock_request, + SLAB_HWCACHE_ALIGN | + SLAB_RECLAIM_ACCOUNT | + SLAB_TYPESAFE_BY_RCU); + if (!i915->requests) + goto err_vmas; + + i915->dependencies = KMEM_CACHE(i915_dependency, + SLAB_HWCACHE_ALIGN | + SLAB_RECLAIM_ACCOUNT); + if (!i915->dependencies) + goto err_requests; + + mutex_lock(&i915->drm.struct_mutex); + INIT_LIST_HEAD(&i915->gt.timelines); + err = i915_gem_timeline_init__global(i915); + if (err) { + mutex_unlock(&i915->drm.struct_mutex); + goto err_dependencies; + } + + mock_init_ggtt(i915); + mutex_unlock(&i915->drm.struct_mutex); + + mkwrite_device_info(i915)->ring_mask = BIT(0); + i915->engine[RCS] = mock_engine(i915, "mock"); + if (!i915->engine[RCS]) + goto err_dependencies; + + i915->kernel_context = mock_context(i915, NULL); + if (!i915->kernel_context) + goto err_engine; + + return i915; + +err_engine: + for_each_engine(engine, i915, id) + mock_engine_free(engine); +err_dependencies: + kmem_cache_destroy(i915->dependencies); +err_requests: + kmem_cache_destroy(i915->requests); +err_vmas: + kmem_cache_destroy(i915->vmas); +err_objects: + kmem_cache_destroy(i915->objects); +err_wq: + destroy_workqueue(i915->wq); +put_device: + put_device(&pdev->dev); +err: + return NULL; +} |