[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / i915 / selftests / mock_gem_device.c

/*
 * 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"
#include "mock_uncore.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->priorities);
	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);
	mock_uncore_init(i915);

	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_DESTROY_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;

	i915->priorities = KMEM_CACHE(i915_priolist, SLAB_HWCACHE_ALIGN);
	if (!i915->priorities)
		goto err_dependencies;

	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_priorities;
	}

	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_priorities:
	kmem_cache_destroy(i915->priorities);
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;
}
Commit	Line	Data
66d9cb5d CW	1	/*
	2	* Copyright © 2016 Intel Corporation
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice (including the next
	12	* paragraph) shall be included in all copies or substantial portions of the
	13	* Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	18	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	20	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
	21	* IN THE SOFTWARE.
	22	*
	23	*/
	24
	25	#include <linux/pm_runtime.h>
	26
0daf0113 CW	27	#include "mock_engine.h"
	28	#include "mock_context.h"
	29	#include "mock_request.h"
66d9cb5d CW	30	#include "mock_gem_device.h"
66d9cb5d CW	31	#include "mock_gem_object.h"
3b5bb0a3	32	#include "mock_gtt.h"
0757ac8f	33	#include "mock_uncore.h"
66d9cb5d	34
0daf0113 CW	35	void mock_device_flush(struct drm_i915_private *i915)
	36	{
	37	struct intel_engine_cs *engine;
	38	enum intel_engine_id id;
	39
	40	lockdep_assert_held(&i915->drm.struct_mutex);
	41
	42	for_each_engine(engine, i915, id)
	43	mock_engine_flush(engine);
	44
	45	i915_gem_retire_requests(i915);
	46	}
	47
66d9cb5d CW	48	static void mock_device_release(struct drm_device *dev)
	49	{
	50	struct drm_i915_private *i915 = to_i915(dev);
0daf0113 CW	51	struct intel_engine_cs *engine;
	52	enum intel_engine_id id;
	53
	54	mutex_lock(&i915->drm.struct_mutex);
	55	mock_device_flush(i915);
	56	mutex_unlock(&i915->drm.struct_mutex);
66d9cb5d	57
0daf0113 CW	58	cancel_delayed_work_sync(&i915->gt.retire_work);
	59	cancel_delayed_work_sync(&i915->gt.idle_work);
	60
	61	mutex_lock(&i915->drm.struct_mutex);
	62	for_each_engine(engine, i915, id)
	63	mock_engine_free(engine);
	64	i915_gem_context_fini(i915);
	65	mutex_unlock(&i915->drm.struct_mutex);
	66
	67	drain_workqueue(i915->wq);
66d9cb5d CW	68	i915_gem_drain_freed_objects(i915);
66d9cb5d CW	69
3b5bb0a3 CW	70	mutex_lock(&i915->drm.struct_mutex);
	71	mock_fini_ggtt(i915);
	72	i915_gem_timeline_fini(&i915->gt.global_timeline);
	73	mutex_unlock(&i915->drm.struct_mutex);
	74
0daf0113 CW	75	destroy_workqueue(i915->wq);
0daf0113 CW	76
c5cf9a91	77	kmem_cache_destroy(i915->priorities);
0daf0113 CW	78	kmem_cache_destroy(i915->dependencies);
0daf0113 CW	79	kmem_cache_destroy(i915->requests);
3b5bb0a3	80	kmem_cache_destroy(i915->vmas);
66d9cb5d CW	81	kmem_cache_destroy(i915->objects);
	82
	83	drm_dev_fini(&i915->drm);
	84	put_device(&i915->drm.pdev->dev);
	85	}
	86
	87	static struct drm_driver mock_driver = {
	88	.name = "mock",
	89	.driver_features = DRIVER_GEM,
	90	.release = mock_device_release,
	91
	92	.gem_close_object = i915_gem_close_object,
	93	.gem_free_object_unlocked = i915_gem_free_object,
	94	};
	95
	96	static void release_dev(struct device *dev)
	97	{
	98	struct pci_dev *pdev = to_pci_dev(dev);
	99
	100	kfree(pdev);
	101	}
	102
0daf0113 CW	103	static void mock_retire_work_handler(struct work_struct *work)
	104	{
	105	}
	106
	107	static void mock_idle_work_handler(struct work_struct *work)
	108	{
	109	}
	110
66d9cb5d CW	111	struct drm_i915_private *mock_gem_device(void)
	112	{
	113	struct drm_i915_private *i915;
0daf0113 CW	114	struct intel_engine_cs *engine;
0daf0113 CW	115	enum intel_engine_id id;
66d9cb5d CW	116	struct pci_dev *pdev;
	117	int err;
	118
	119	pdev = kzalloc(sizeof(pdev) + sizeof(i915), GFP_KERNEL);
	120	if (!pdev)
	121	goto err;
	122
	123	device_initialize(&pdev->dev);
	124	pdev->dev.release = release_dev;
	125	dev_set_name(&pdev->dev, "mock");
	126	dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
	127
	128	pm_runtime_dont_use_autosuspend(&pdev->dev);
	129	pm_runtime_get_sync(&pdev->dev);
	130
	131	i915 = (struct drm_i915_private *)(pdev + 1);
	132	pci_set_drvdata(pdev, i915);
	133
	134	err = drm_dev_init(&i915->drm, &mock_driver, &pdev->dev);
	135	if (err) {
	136	pr_err("Failed to initialise mock GEM device: err=%d\n", err);
	137	goto put_device;
	138	}
	139	i915->drm.pdev = pdev;
	140	i915->drm.dev_private = i915;
	141
3b5bb0a3 CW	142	/* Using the global GTT may ask questions about KMS users, so prepare */
	143	drm_mode_config_init(&i915->drm);
	144
66d9cb5d CW	145	mkwrite_device_info(i915)->gen = -1;
	146
	147	spin_lock_init(&i915->mm.object_stat_lock);
0757ac8f	148	mock_uncore_init(i915);
66d9cb5d	149
0daf0113 CW	150	init_waitqueue_head(&i915->gpu_error.wait_queue);
	151	init_waitqueue_head(&i915->gpu_error.reset_queue);
	152
	153	i915->wq = alloc_ordered_workqueue("mock", 0);
	154	if (!i915->wq)
	155	goto put_device;
	156
66d9cb5d CW	157	INIT_WORK(&i915->mm.free_work, __i915_gem_free_work);
66d9cb5d CW	158	init_llist_head(&i915->mm.free_list);
3b5bb0a3 CW	159	INIT_LIST_HEAD(&i915->mm.unbound_list);
3b5bb0a3 CW	160	INIT_LIST_HEAD(&i915->mm.bound_list);
66d9cb5d	161
0daf0113 CW	162	ida_init(&i915->context_hw_ida);
	163
	164	INIT_DELAYED_WORK(&i915->gt.retire_work, mock_retire_work_handler);
	165	INIT_DELAYED_WORK(&i915->gt.idle_work, mock_idle_work_handler);
	166
	167	i915->gt.awake = true;
	168
66d9cb5d CW	169	i915->objects = KMEM_CACHE(mock_object, SLAB_HWCACHE_ALIGN);
66d9cb5d CW	170	if (!i915->objects)
0daf0113	171	goto err_wq;
66d9cb5d	172
3b5bb0a3 CW	173	i915->vmas = KMEM_CACHE(i915_vma, SLAB_HWCACHE_ALIGN);
	174	if (!i915->vmas)
	175	goto err_objects;
	176
0daf0113 CW	177	i915->requests = KMEM_CACHE(mock_request,
	178	SLAB_HWCACHE_ALIGN \|
	179	SLAB_RECLAIM_ACCOUNT \|
	180	SLAB_DESTROY_BY_RCU);
	181	if (!i915->requests)
	182	goto err_vmas;
	183
	184	i915->dependencies = KMEM_CACHE(i915_dependency,
	185	SLAB_HWCACHE_ALIGN \|
	186	SLAB_RECLAIM_ACCOUNT);
	187	if (!i915->dependencies)
	188	goto err_requests;
	189
c5cf9a91 CW	190	i915->priorities = KMEM_CACHE(i915_priolist, SLAB_HWCACHE_ALIGN);
	191	if (!i915->priorities)
	192	goto err_dependencies;
	193
3b5bb0a3 CW	194	mutex_lock(&i915->drm.struct_mutex);
	195	INIT_LIST_HEAD(&i915->gt.timelines);
	196	err = i915_gem_timeline_init__global(i915);
	197	if (err) {
	198	mutex_unlock(&i915->drm.struct_mutex);
c5cf9a91	199	goto err_priorities;
3b5bb0a3 CW	200	}
	201
	202	mock_init_ggtt(i915);
	203	mutex_unlock(&i915->drm.struct_mutex);
	204
0daf0113 CW	205	mkwrite_device_info(i915)->ring_mask = BIT(0);
	206	i915->engine[RCS] = mock_engine(i915, "mock");
	207	if (!i915->engine[RCS])
	208	goto err_dependencies;
	209
	210	i915->kernel_context = mock_context(i915, NULL);
	211	if (!i915->kernel_context)
	212	goto err_engine;
	213
66d9cb5d CW	214	return i915;
66d9cb5d CW	215
0daf0113 CW	216	err_engine:
	217	for_each_engine(engine, i915, id)
	218	mock_engine_free(engine);
c5cf9a91 CW	219	err_priorities:
c5cf9a91 CW	220	kmem_cache_destroy(i915->priorities);
0daf0113 CW	221	err_dependencies:
	222	kmem_cache_destroy(i915->dependencies);
	223	err_requests:
	224	kmem_cache_destroy(i915->requests);
3b5bb0a3 CW	225	err_vmas:
	226	kmem_cache_destroy(i915->vmas);
	227	err_objects:
	228	kmem_cache_destroy(i915->objects);
0daf0113 CW	229	err_wq:
0daf0113 CW	230	destroy_workqueue(i915->wq);
66d9cb5d CW	231	put_device:
	232	put_device(&pdev->dev);
	233	err:
	234	return NULL;
	235	}