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f64122c1 DA |
1 | /* |
2 | * Copyright 2013 Red Hat Inc. | |
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 shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Authors: Dave Airlie | |
23 | * Alon Levy | |
24 | */ | |
25 | ||
26 | #include "qxl_drv.h" | |
27 | #include "qxl_object.h" | |
28 | ||
29 | #include <linux/io-mapping.h> | |
30 | static void qxl_ttm_bo_destroy(struct ttm_buffer_object *tbo) | |
31 | { | |
32 | struct qxl_bo *bo; | |
33 | struct qxl_device *qdev; | |
34 | ||
35 | bo = container_of(tbo, struct qxl_bo, tbo); | |
36 | qdev = (struct qxl_device *)bo->gem_base.dev->dev_private; | |
37 | ||
38 | qxl_surface_evict(qdev, bo, false); | |
39 | qxl_fence_fini(&bo->fence); | |
40 | mutex_lock(&qdev->gem.mutex); | |
41 | list_del_init(&bo->list); | |
42 | mutex_unlock(&qdev->gem.mutex); | |
43 | drm_gem_object_release(&bo->gem_base); | |
44 | kfree(bo); | |
45 | } | |
46 | ||
47 | bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo) | |
48 | { | |
49 | if (bo->destroy == &qxl_ttm_bo_destroy) | |
50 | return true; | |
51 | return false; | |
52 | } | |
53 | ||
4f49ec92 | 54 | void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned) |
f64122c1 DA |
55 | { |
56 | u32 c = 0; | |
4f49ec92 | 57 | u32 pflag = pinned ? TTM_PL_FLAG_NO_EVICT : 0; |
f64122c1 DA |
58 | |
59 | qbo->placement.fpfn = 0; | |
60 | qbo->placement.lpfn = 0; | |
61 | qbo->placement.placement = qbo->placements; | |
62 | qbo->placement.busy_placement = qbo->placements; | |
62c8ba7c | 63 | if (domain == QXL_GEM_DOMAIN_VRAM) |
4f49ec92 | 64 | qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_VRAM | pflag; |
62c8ba7c | 65 | if (domain == QXL_GEM_DOMAIN_SURFACE) |
4f49ec92 | 66 | qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_PRIV0 | pflag; |
62c8ba7c | 67 | if (domain == QXL_GEM_DOMAIN_CPU) |
4f49ec92 | 68 | qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM | pflag; |
f64122c1 DA |
69 | if (!c) |
70 | qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM; | |
71 | qbo->placement.num_placement = c; | |
72 | qbo->placement.num_busy_placement = c; | |
73 | } | |
74 | ||
75 | ||
76 | int qxl_bo_create(struct qxl_device *qdev, | |
4f49ec92 | 77 | unsigned long size, bool kernel, bool pinned, u32 domain, |
f64122c1 DA |
78 | struct qxl_surface *surf, |
79 | struct qxl_bo **bo_ptr) | |
80 | { | |
81 | struct qxl_bo *bo; | |
82 | enum ttm_bo_type type; | |
83 | int r; | |
84 | ||
85 | if (unlikely(qdev->mman.bdev.dev_mapping == NULL)) | |
86 | qdev->mman.bdev.dev_mapping = qdev->ddev->dev_mapping; | |
87 | if (kernel) | |
88 | type = ttm_bo_type_kernel; | |
89 | else | |
90 | type = ttm_bo_type_device; | |
91 | *bo_ptr = NULL; | |
92 | bo = kzalloc(sizeof(struct qxl_bo), GFP_KERNEL); | |
93 | if (bo == NULL) | |
94 | return -ENOMEM; | |
95 | size = roundup(size, PAGE_SIZE); | |
96 | r = drm_gem_object_init(qdev->ddev, &bo->gem_base, size); | |
97 | if (unlikely(r)) { | |
98 | kfree(bo); | |
99 | return r; | |
100 | } | |
f64122c1 | 101 | bo->type = domain; |
4f49ec92 | 102 | bo->pin_count = pinned ? 1 : 0; |
f64122c1 DA |
103 | bo->surface_id = 0; |
104 | qxl_fence_init(qdev, &bo->fence); | |
105 | INIT_LIST_HEAD(&bo->list); | |
8002db63 | 106 | |
f64122c1 DA |
107 | if (surf) |
108 | bo->surf = *surf; | |
109 | ||
4f49ec92 | 110 | qxl_ttm_placement_from_domain(bo, domain, pinned); |
f64122c1 DA |
111 | |
112 | r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type, | |
113 | &bo->placement, 0, !kernel, NULL, size, | |
114 | NULL, &qxl_ttm_bo_destroy); | |
115 | if (unlikely(r != 0)) { | |
116 | if (r != -ERESTARTSYS) | |
117 | dev_err(qdev->dev, | |
118 | "object_init failed for (%lu, 0x%08X)\n", | |
119 | size, domain); | |
120 | return r; | |
121 | } | |
122 | *bo_ptr = bo; | |
123 | return 0; | |
124 | } | |
125 | ||
126 | int qxl_bo_kmap(struct qxl_bo *bo, void **ptr) | |
127 | { | |
128 | bool is_iomem; | |
129 | int r; | |
130 | ||
131 | if (bo->kptr) { | |
132 | if (ptr) | |
133 | *ptr = bo->kptr; | |
134 | return 0; | |
135 | } | |
136 | r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap); | |
137 | if (r) | |
138 | return r; | |
139 | bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem); | |
140 | if (ptr) | |
141 | *ptr = bo->kptr; | |
142 | return 0; | |
143 | } | |
144 | ||
145 | void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev, | |
146 | struct qxl_bo *bo, int page_offset) | |
147 | { | |
148 | struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type]; | |
149 | void *rptr; | |
150 | int ret; | |
151 | struct io_mapping *map; | |
152 | ||
153 | if (bo->tbo.mem.mem_type == TTM_PL_VRAM) | |
154 | map = qdev->vram_mapping; | |
155 | else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0) | |
156 | map = qdev->surface_mapping; | |
157 | else | |
158 | goto fallback; | |
159 | ||
160 | (void) ttm_mem_io_lock(man, false); | |
161 | ret = ttm_mem_io_reserve(bo->tbo.bdev, &bo->tbo.mem); | |
162 | ttm_mem_io_unlock(man); | |
163 | ||
164 | return io_mapping_map_atomic_wc(map, bo->tbo.mem.bus.offset + page_offset); | |
165 | fallback: | |
166 | if (bo->kptr) { | |
167 | rptr = bo->kptr + (page_offset * PAGE_SIZE); | |
168 | return rptr; | |
169 | } | |
170 | ||
171 | ret = qxl_bo_kmap(bo, &rptr); | |
172 | if (ret) | |
173 | return NULL; | |
174 | ||
175 | rptr += page_offset * PAGE_SIZE; | |
176 | return rptr; | |
177 | } | |
178 | ||
179 | void qxl_bo_kunmap(struct qxl_bo *bo) | |
180 | { | |
181 | if (bo->kptr == NULL) | |
182 | return; | |
183 | bo->kptr = NULL; | |
184 | ttm_bo_kunmap(&bo->kmap); | |
185 | } | |
186 | ||
187 | void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev, | |
188 | struct qxl_bo *bo, void *pmap) | |
189 | { | |
190 | struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type]; | |
191 | struct io_mapping *map; | |
192 | ||
193 | if (bo->tbo.mem.mem_type == TTM_PL_VRAM) | |
194 | map = qdev->vram_mapping; | |
195 | else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0) | |
196 | map = qdev->surface_mapping; | |
197 | else | |
198 | goto fallback; | |
199 | ||
200 | io_mapping_unmap_atomic(pmap); | |
201 | ||
202 | (void) ttm_mem_io_lock(man, false); | |
203 | ttm_mem_io_free(bo->tbo.bdev, &bo->tbo.mem); | |
204 | ttm_mem_io_unlock(man); | |
205 | return ; | |
206 | fallback: | |
207 | qxl_bo_kunmap(bo); | |
208 | } | |
209 | ||
210 | void qxl_bo_unref(struct qxl_bo **bo) | |
211 | { | |
212 | struct ttm_buffer_object *tbo; | |
213 | ||
214 | if ((*bo) == NULL) | |
215 | return; | |
216 | tbo = &((*bo)->tbo); | |
217 | ttm_bo_unref(&tbo); | |
218 | if (tbo == NULL) | |
219 | *bo = NULL; | |
220 | } | |
221 | ||
222 | struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo) | |
223 | { | |
224 | ttm_bo_reference(&bo->tbo); | |
225 | return bo; | |
226 | } | |
227 | ||
228 | int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr) | |
229 | { | |
230 | struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private; | |
4f49ec92 | 231 | int r; |
f64122c1 DA |
232 | |
233 | if (bo->pin_count) { | |
234 | bo->pin_count++; | |
235 | if (gpu_addr) | |
236 | *gpu_addr = qxl_bo_gpu_offset(bo); | |
237 | return 0; | |
238 | } | |
4f49ec92 | 239 | qxl_ttm_placement_from_domain(bo, domain, true); |
f64122c1 DA |
240 | r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false); |
241 | if (likely(r == 0)) { | |
242 | bo->pin_count = 1; | |
243 | if (gpu_addr != NULL) | |
244 | *gpu_addr = qxl_bo_gpu_offset(bo); | |
245 | } | |
246 | if (unlikely(r != 0)) | |
247 | dev_err(qdev->dev, "%p pin failed\n", bo); | |
248 | return r; | |
249 | } | |
250 | ||
251 | int qxl_bo_unpin(struct qxl_bo *bo) | |
252 | { | |
253 | struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private; | |
254 | int r, i; | |
255 | ||
256 | if (!bo->pin_count) { | |
257 | dev_warn(qdev->dev, "%p unpin not necessary\n", bo); | |
258 | return 0; | |
259 | } | |
260 | bo->pin_count--; | |
261 | if (bo->pin_count) | |
262 | return 0; | |
263 | for (i = 0; i < bo->placement.num_placement; i++) | |
264 | bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT; | |
265 | r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false); | |
266 | if (unlikely(r != 0)) | |
267 | dev_err(qdev->dev, "%p validate failed for unpin\n", bo); | |
268 | return r; | |
269 | } | |
270 | ||
271 | void qxl_bo_force_delete(struct qxl_device *qdev) | |
272 | { | |
273 | struct qxl_bo *bo, *n; | |
274 | ||
275 | if (list_empty(&qdev->gem.objects)) | |
276 | return; | |
277 | dev_err(qdev->dev, "Userspace still has active objects !\n"); | |
278 | list_for_each_entry_safe(bo, n, &qdev->gem.objects, list) { | |
279 | mutex_lock(&qdev->ddev->struct_mutex); | |
280 | dev_err(qdev->dev, "%p %p %lu %lu force free\n", | |
281 | &bo->gem_base, bo, (unsigned long)bo->gem_base.size, | |
282 | *((unsigned long *)&bo->gem_base.refcount)); | |
283 | mutex_lock(&qdev->gem.mutex); | |
284 | list_del_init(&bo->list); | |
285 | mutex_unlock(&qdev->gem.mutex); | |
286 | /* this should unref the ttm bo */ | |
287 | drm_gem_object_unreference(&bo->gem_base); | |
288 | mutex_unlock(&qdev->ddev->struct_mutex); | |
289 | } | |
290 | } | |
291 | ||
292 | int qxl_bo_init(struct qxl_device *qdev) | |
293 | { | |
294 | return qxl_ttm_init(qdev); | |
295 | } | |
296 | ||
297 | void qxl_bo_fini(struct qxl_device *qdev) | |
298 | { | |
299 | qxl_ttm_fini(qdev); | |
300 | } | |
301 | ||
302 | int qxl_bo_check_id(struct qxl_device *qdev, struct qxl_bo *bo) | |
303 | { | |
304 | int ret; | |
305 | if (bo->type == QXL_GEM_DOMAIN_SURFACE && bo->surface_id == 0) { | |
306 | /* allocate a surface id for this surface now */ | |
307 | ret = qxl_surface_id_alloc(qdev, bo); | |
308 | if (ret) | |
309 | return ret; | |
310 | ||
311 | ret = qxl_hw_surface_alloc(qdev, bo, NULL); | |
312 | if (ret) | |
313 | return ret; | |
314 | } | |
315 | return 0; | |
316 | } | |
317 | ||
b86487a6 DA |
318 | int qxl_surf_evict(struct qxl_device *qdev) |
319 | { | |
320 | return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_PRIV0); | |
321 | } | |
d84300bf DA |
322 | |
323 | int qxl_vram_evict(struct qxl_device *qdev) | |
324 | { | |
325 | return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_VRAM); | |
326 | } |