drm/i915: Supply the engine-id for our mock_engine()
[muen/linux.git] / drivers / gpu / drm / i915 / selftests / mock_gem_device.c
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_domain.h>
26 #include <linux/pm_runtime.h>
27
28 #include "mock_engine.h"
29 #include "mock_context.h"
30 #include "mock_request.h"
31 #include "mock_gem_device.h"
32 #include "mock_gem_object.h"
33 #include "mock_gtt.h"
34 #include "mock_uncore.h"
35
36 void mock_device_flush(struct drm_i915_private *i915)
37 {
38         struct intel_engine_cs *engine;
39         enum intel_engine_id id;
40
41         lockdep_assert_held(&i915->drm.struct_mutex);
42
43         for_each_engine(engine, i915, id)
44                 mock_engine_flush(engine);
45
46         i915_gem_retire_requests(i915);
47 }
48
49 static void mock_device_release(struct drm_device *dev)
50 {
51         struct drm_i915_private *i915 = to_i915(dev);
52         struct intel_engine_cs *engine;
53         enum intel_engine_id id;
54
55         mutex_lock(&i915->drm.struct_mutex);
56         mock_device_flush(i915);
57         i915_gem_contexts_lost(i915);
58         mutex_unlock(&i915->drm.struct_mutex);
59
60         cancel_delayed_work_sync(&i915->gt.retire_work);
61         cancel_delayed_work_sync(&i915->gt.idle_work);
62         i915_gem_drain_workqueue(i915);
63
64         mutex_lock(&i915->drm.struct_mutex);
65         for_each_engine(engine, i915, id)
66                 mock_engine_free(engine);
67         i915_gem_contexts_fini(i915);
68         mutex_unlock(&i915->drm.struct_mutex);
69
70         drain_workqueue(i915->wq);
71         i915_gem_drain_freed_objects(i915);
72
73         mutex_lock(&i915->drm.struct_mutex);
74         mock_fini_ggtt(i915);
75         i915_gem_timeline_fini(&i915->gt.global_timeline);
76         mutex_unlock(&i915->drm.struct_mutex);
77
78         destroy_workqueue(i915->wq);
79
80         kmem_cache_destroy(i915->priorities);
81         kmem_cache_destroy(i915->dependencies);
82         kmem_cache_destroy(i915->requests);
83         kmem_cache_destroy(i915->vmas);
84         kmem_cache_destroy(i915->objects);
85
86         drm_dev_fini(&i915->drm);
87         put_device(&i915->drm.pdev->dev);
88 }
89
90 static struct drm_driver mock_driver = {
91         .name = "mock",
92         .driver_features = DRIVER_GEM,
93         .release = mock_device_release,
94
95         .gem_close_object = i915_gem_close_object,
96         .gem_free_object_unlocked = i915_gem_free_object,
97 };
98
99 static void release_dev(struct device *dev)
100 {
101         struct pci_dev *pdev = to_pci_dev(dev);
102
103         kfree(pdev);
104 }
105
106 static void mock_retire_work_handler(struct work_struct *work)
107 {
108 }
109
110 static void mock_idle_work_handler(struct work_struct *work)
111 {
112 }
113
114 static int pm_domain_resume(struct device *dev)
115 {
116         return pm_generic_runtime_resume(dev);
117 }
118
119 static int pm_domain_suspend(struct device *dev)
120 {
121         return pm_generic_runtime_suspend(dev);
122 }
123
124 static struct dev_pm_domain pm_domain = {
125         .ops = {
126                 .runtime_suspend = pm_domain_suspend,
127                 .runtime_resume = pm_domain_resume,
128         },
129 };
130
131 struct drm_i915_private *mock_gem_device(void)
132 {
133         struct drm_i915_private *i915;
134         struct intel_engine_cs *engine;
135         enum intel_engine_id id;
136         struct pci_dev *pdev;
137         int err;
138
139         pdev = kzalloc(sizeof(*pdev) + sizeof(*i915), GFP_KERNEL);
140         if (!pdev)
141                 goto err;
142
143         device_initialize(&pdev->dev);
144         pdev->class = PCI_BASE_CLASS_DISPLAY << 16;
145         pdev->dev.release = release_dev;
146         dev_set_name(&pdev->dev, "mock");
147         dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
148
149         dev_pm_domain_set(&pdev->dev, &pm_domain);
150         pm_runtime_enable(&pdev->dev);
151         pm_runtime_dont_use_autosuspend(&pdev->dev);
152         WARN_ON(pm_runtime_get_sync(&pdev->dev));
153
154         i915 = (struct drm_i915_private *)(pdev + 1);
155         pci_set_drvdata(pdev, i915);
156
157         err = drm_dev_init(&i915->drm, &mock_driver, &pdev->dev);
158         if (err) {
159                 pr_err("Failed to initialise mock GEM device: err=%d\n", err);
160                 goto put_device;
161         }
162         i915->drm.pdev = pdev;
163         i915->drm.dev_private = i915;
164
165         /* Using the global GTT may ask questions about KMS users, so prepare */
166         drm_mode_config_init(&i915->drm);
167
168         mkwrite_device_info(i915)->gen = -1;
169
170         spin_lock_init(&i915->mm.object_stat_lock);
171         mock_uncore_init(i915);
172
173         init_waitqueue_head(&i915->gpu_error.wait_queue);
174         init_waitqueue_head(&i915->gpu_error.reset_queue);
175
176         i915->wq = alloc_ordered_workqueue("mock", 0);
177         if (!i915->wq)
178                 goto put_device;
179
180         INIT_WORK(&i915->mm.free_work, __i915_gem_free_work);
181         init_llist_head(&i915->mm.free_list);
182         INIT_LIST_HEAD(&i915->mm.unbound_list);
183         INIT_LIST_HEAD(&i915->mm.bound_list);
184
185         mock_init_contexts(i915);
186
187         INIT_DELAYED_WORK(&i915->gt.retire_work, mock_retire_work_handler);
188         INIT_DELAYED_WORK(&i915->gt.idle_work, mock_idle_work_handler);
189
190         i915->gt.awake = true;
191
192         i915->objects = KMEM_CACHE(mock_object, SLAB_HWCACHE_ALIGN);
193         if (!i915->objects)
194                 goto err_wq;
195
196         i915->vmas = KMEM_CACHE(i915_vma, SLAB_HWCACHE_ALIGN);
197         if (!i915->vmas)
198                 goto err_objects;
199
200         i915->requests = KMEM_CACHE(mock_request,
201                                     SLAB_HWCACHE_ALIGN |
202                                     SLAB_RECLAIM_ACCOUNT |
203                                     SLAB_TYPESAFE_BY_RCU);
204         if (!i915->requests)
205                 goto err_vmas;
206
207         i915->dependencies = KMEM_CACHE(i915_dependency,
208                                         SLAB_HWCACHE_ALIGN |
209                                         SLAB_RECLAIM_ACCOUNT);
210         if (!i915->dependencies)
211                 goto err_requests;
212
213         i915->priorities = KMEM_CACHE(i915_priolist, SLAB_HWCACHE_ALIGN);
214         if (!i915->priorities)
215                 goto err_dependencies;
216
217         mutex_lock(&i915->drm.struct_mutex);
218         INIT_LIST_HEAD(&i915->gt.timelines);
219         err = i915_gem_timeline_init__global(i915);
220         if (err) {
221                 mutex_unlock(&i915->drm.struct_mutex);
222                 goto err_priorities;
223         }
224
225         mock_init_ggtt(i915);
226         mutex_unlock(&i915->drm.struct_mutex);
227
228         mkwrite_device_info(i915)->ring_mask = BIT(0);
229         i915->engine[RCS] = mock_engine(i915, "mock", RCS);
230         if (!i915->engine[RCS])
231                 goto err_priorities;
232
233         i915->kernel_context = mock_context(i915, NULL);
234         if (!i915->kernel_context)
235                 goto err_engine;
236
237         return i915;
238
239 err_engine:
240         for_each_engine(engine, i915, id)
241                 mock_engine_free(engine);
242 err_priorities:
243         kmem_cache_destroy(i915->priorities);
244 err_dependencies:
245         kmem_cache_destroy(i915->dependencies);
246 err_requests:
247         kmem_cache_destroy(i915->requests);
248 err_vmas:
249         kmem_cache_destroy(i915->vmas);
250 err_objects:
251         kmem_cache_destroy(i915->objects);
252 err_wq:
253         destroy_workqueue(i915->wq);
254 put_device:
255         put_device(&pdev->dev);
256 err:
257         return NULL;
258 }