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1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
3
4#include <linux/mm.h>
5#include <linux/iosys-map.h>
6#include <linux/sync_file.h>
7#include <linux/pagemap.h>
8#include <linux/shmem_fs.h>
9#include <linux/dma-mapping.h>
10
11#include <drm/drm_file.h>
12#include <drm/drm_syncobj.h>
13#include <drm/drm_utils.h>
14
15#include <drm/lima_drm.h>
16
17#include "lima_drv.h"
18#include "lima_gem.h"
19#include "lima_vm.h"
20
21int lima_heap_alloc(struct lima_bo *bo, struct lima_vm *vm)
22{
23 struct page **pages;
24 struct address_space *mapping = bo->base.base.filp->f_mapping;
25 struct device *dev = bo->base.base.dev->dev;
26 size_t old_size = bo->heap_size;
27 size_t new_size = bo->heap_size ? bo->heap_size * 2 :
28 (lima_heap_init_nr_pages << PAGE_SHIFT);
29 struct sg_table sgt;
30 int i, ret;
31
32 if (bo->heap_size >= bo->base.base.size)
33 return -ENOSPC;
34
35 new_size = min(new_size, bo->base.base.size);
36
37 dma_resv_lock(bo->base.base.resv, NULL);
38
39 if (bo->base.pages) {
40 pages = bo->base.pages;
41 } else {
42 pages = kvmalloc_array(bo->base.base.size >> PAGE_SHIFT,
43 sizeof(*pages), GFP_KERNEL | __GFP_ZERO);
44 if (!pages) {
45 dma_resv_unlock(bo->base.base.resv);
46 return -ENOMEM;
47 }
48
49 bo->base.pages = pages;
50 bo->base.pages_use_count = 1;
51
52 mapping_set_unevictable(mapping);
53 }
54
55 for (i = old_size >> PAGE_SHIFT; i < new_size >> PAGE_SHIFT; i++) {
56 struct page *page = shmem_read_mapping_page(mapping, i);
57
58 if (IS_ERR(page)) {
59 dma_resv_unlock(bo->base.base.resv);
60 return PTR_ERR(page);
61 }
62 pages[i] = page;
63 }
64
65 dma_resv_unlock(bo->base.base.resv);
66
67 ret = sg_alloc_table_from_pages(&sgt, pages, i, 0,
68 new_size, GFP_KERNEL);
69 if (ret)
70 return ret;
71
72 if (bo->base.sgt) {
73 dma_unmap_sgtable(dev, bo->base.sgt, DMA_BIDIRECTIONAL, 0);
74 sg_free_table(bo->base.sgt);
75 } else {
76 bo->base.sgt = kmalloc(sizeof(*bo->base.sgt), GFP_KERNEL);
77 if (!bo->base.sgt) {
78 ret = -ENOMEM;
79 goto err_out0;
80 }
81 }
82
83 ret = dma_map_sgtable(dev, &sgt, DMA_BIDIRECTIONAL, 0);
84 if (ret)
85 goto err_out1;
86
87 *bo->base.sgt = sgt;
88
89 if (vm) {
90 ret = lima_vm_map_bo(vm, bo, old_size >> PAGE_SHIFT);
91 if (ret)
92 goto err_out2;
93 }
94
95 bo->heap_size = new_size;
96 return 0;
97
98err_out2:
99 dma_unmap_sgtable(dev, &sgt, DMA_BIDIRECTIONAL, 0);
100err_out1:
101 kfree(bo->base.sgt);
102 bo->base.sgt = NULL;
103err_out0:
104 sg_free_table(&sgt);
105 return ret;
106}
107
108int lima_gem_create_handle(struct drm_device *dev, struct drm_file *file,
109 u32 size, u32 flags, u32 *handle)
110{
111 int err;
112 gfp_t mask;
113 struct drm_gem_shmem_object *shmem;
114 struct drm_gem_object *obj;
115 struct lima_bo *bo;
116 bool is_heap = flags & LIMA_BO_FLAG_HEAP;
117
118 shmem = drm_gem_shmem_create(dev, size);
119 if (IS_ERR(shmem))
120 return PTR_ERR(shmem);
121
122 obj = &shmem->base;
123
124 /* Mali Utgard GPU can only support 32bit address space */
125 mask = mapping_gfp_mask(obj->filp->f_mapping);
126 mask &= ~__GFP_HIGHMEM;
127 mask |= __GFP_DMA32;
128 mapping_set_gfp_mask(obj->filp->f_mapping, mask);
129
130 if (is_heap) {
131 bo = to_lima_bo(obj);
132 err = lima_heap_alloc(bo, NULL);
133 if (err)
134 goto out;
135 } else {
136 struct sg_table *sgt = drm_gem_shmem_get_pages_sgt(shmem);
137
138 if (IS_ERR(sgt)) {
139 err = PTR_ERR(sgt);
140 goto out;
141 }
142 }
143
144 err = drm_gem_handle_create(file, obj, handle);
145
146out:
147 /* drop reference from allocate - handle holds it now */
148 drm_gem_object_put(obj);
149
150 return err;
151}
152
153static void lima_gem_free_object(struct drm_gem_object *obj)
154{
155 struct lima_bo *bo = to_lima_bo(obj);
156
157 if (!list_empty(&bo->va))
158 dev_err(obj->dev->dev, "lima gem free bo still has va\n");
159
160 drm_gem_shmem_free(&bo->base);
161}
162
163static int lima_gem_object_open(struct drm_gem_object *obj, struct drm_file *file)
164{
165 struct lima_bo *bo = to_lima_bo(obj);
166 struct lima_drm_priv *priv = to_lima_drm_priv(file);
167 struct lima_vm *vm = priv->vm;
168
169 return lima_vm_bo_add(vm, bo, true);
170}
171
172static void lima_gem_object_close(struct drm_gem_object *obj, struct drm_file *file)
173{
174 struct lima_bo *bo = to_lima_bo(obj);
175 struct lima_drm_priv *priv = to_lima_drm_priv(file);
176 struct lima_vm *vm = priv->vm;
177
178 lima_vm_bo_del(vm, bo);
179}
180
181static int lima_gem_pin(struct drm_gem_object *obj)
182{
183 struct lima_bo *bo = to_lima_bo(obj);
184
185 if (bo->heap_size)
186 return -EINVAL;
187
188 return drm_gem_shmem_pin_locked(&bo->base);
189}
190
191static int lima_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map)
192{
193 struct lima_bo *bo = to_lima_bo(obj);
194
195 if (bo->heap_size)
196 return -EINVAL;
197
198 return drm_gem_shmem_vmap(&bo->base, map);
199}
200
201static int lima_gem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
202{
203 struct lima_bo *bo = to_lima_bo(obj);
204
205 if (bo->heap_size)
206 return -EINVAL;
207
208 return drm_gem_shmem_mmap(&bo->base, vma);
209}
210
211static const struct drm_gem_object_funcs lima_gem_funcs = {
212 .free = lima_gem_free_object,
213 .open = lima_gem_object_open,
214 .close = lima_gem_object_close,
215 .print_info = drm_gem_shmem_object_print_info,
216 .pin = lima_gem_pin,
217 .unpin = drm_gem_shmem_object_unpin,
218 .get_sg_table = drm_gem_shmem_object_get_sg_table,
219 .vmap = lima_gem_vmap,
220 .vunmap = drm_gem_shmem_object_vunmap,
221 .mmap = lima_gem_mmap,
222 .vm_ops = &drm_gem_shmem_vm_ops,
223};
224
225struct drm_gem_object *lima_gem_create_object(struct drm_device *dev, size_t size)
226{
227 struct lima_bo *bo;
228
229 bo = kzalloc(sizeof(*bo), GFP_KERNEL);
230 if (!bo)
231 return ERR_PTR(-ENOMEM);
232
233 mutex_init(&bo->lock);
234 INIT_LIST_HEAD(&bo->va);
235 bo->base.map_wc = true;
236 bo->base.base.funcs = &lima_gem_funcs;
237
238 return &bo->base.base;
239}
240
241int lima_gem_get_info(struct drm_file *file, u32 handle, u32 *va, u64 *offset)
242{
243 struct drm_gem_object *obj;
244 struct lima_bo *bo;
245 struct lima_drm_priv *priv = to_lima_drm_priv(file);
246 struct lima_vm *vm = priv->vm;
247
248 obj = drm_gem_object_lookup(file, handle);
249 if (!obj)
250 return -ENOENT;
251
252 bo = to_lima_bo(obj);
253
254 *va = lima_vm_get_va(vm, bo);
255
256 *offset = drm_vma_node_offset_addr(&obj->vma_node);
257
258 drm_gem_object_put(obj);
259 return 0;
260}
261
262static int lima_gem_sync_bo(struct lima_sched_task *task, struct lima_bo *bo,
263 bool write, bool explicit)
264{
265 int err;
266
267 err = dma_resv_reserve_fences(lima_bo_resv(bo), 1);
268 if (err)
269 return err;
270
271 /* explicit sync use user passed dep fence */
272 if (explicit)
273 return 0;
274
275 return drm_sched_job_add_implicit_dependencies(&task->base,
276 &bo->base.base,
277 write);
278}
279
280static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
281{
282 int i, err;
283
284 for (i = 0; i < ARRAY_SIZE(submit->in_sync); i++) {
285 if (!submit->in_sync[i])
286 continue;
287
288 err = drm_sched_job_add_syncobj_dependency(&submit->task->base, file,
289 submit->in_sync[i], 0);
290 if (err)
291 return err;
292 }
293
294 return 0;
295}
296
297int lima_gem_submit(struct drm_file *file, struct lima_submit *submit)
298{
299 int i, err = 0;
300 struct ww_acquire_ctx ctx;
301 struct lima_drm_priv *priv = to_lima_drm_priv(file);
302 struct lima_vm *vm = priv->vm;
303 struct drm_syncobj *out_sync = NULL;
304 struct dma_fence *fence;
305 struct lima_bo **bos = submit->lbos;
306
307 if (submit->out_sync) {
308 out_sync = drm_syncobj_find(file, submit->out_sync);
309 if (!out_sync)
310 return -ENOENT;
311 }
312
313 for (i = 0; i < submit->nr_bos; i++) {
314 struct drm_gem_object *obj;
315 struct lima_bo *bo;
316
317 obj = drm_gem_object_lookup(file, submit->bos[i].handle);
318 if (!obj) {
319 err = -ENOENT;
320 goto err_out0;
321 }
322
323 bo = to_lima_bo(obj);
324
325 /* increase refcnt of gpu va map to prevent unmapped when executing,
326 * will be decreased when task done
327 */
328 err = lima_vm_bo_add(vm, bo, false);
329 if (err) {
330 drm_gem_object_put(obj);
331 goto err_out0;
332 }
333
334 bos[i] = bo;
335 }
336
337 err = drm_gem_lock_reservations((struct drm_gem_object **)bos,
338 submit->nr_bos, &ctx);
339 if (err)
340 goto err_out0;
341
342 err = lima_sched_task_init(
343 submit->task, submit->ctx->context + submit->pipe,
344 bos, submit->nr_bos, vm);
345 if (err)
346 goto err_out1;
347
348 err = lima_gem_add_deps(file, submit);
349 if (err)
350 goto err_out2;
351
352 for (i = 0; i < submit->nr_bos; i++) {
353 err = lima_gem_sync_bo(
354 submit->task, bos[i],
355 submit->bos[i].flags & LIMA_SUBMIT_BO_WRITE,
356 submit->flags & LIMA_SUBMIT_FLAG_EXPLICIT_FENCE);
357 if (err)
358 goto err_out2;
359 }
360
361 fence = lima_sched_context_queue_task(submit->task);
362
363 for (i = 0; i < submit->nr_bos; i++) {
364 dma_resv_add_fence(lima_bo_resv(bos[i]), fence,
365 submit->bos[i].flags & LIMA_SUBMIT_BO_WRITE ?
366 DMA_RESV_USAGE_WRITE : DMA_RESV_USAGE_READ);
367 }
368
369 drm_gem_unlock_reservations((struct drm_gem_object **)bos,
370 submit->nr_bos, &ctx);
371
372 for (i = 0; i < submit->nr_bos; i++)
373 drm_gem_object_put(&bos[i]->base.base);
374
375 if (out_sync) {
376 drm_syncobj_replace_fence(out_sync, fence);
377 drm_syncobj_put(out_sync);
378 }
379
380 dma_fence_put(fence);
381
382 return 0;
383
384err_out2:
385 lima_sched_task_fini(submit->task);
386err_out1:
387 drm_gem_unlock_reservations((struct drm_gem_object **)bos,
388 submit->nr_bos, &ctx);
389err_out0:
390 for (i = 0; i < submit->nr_bos; i++) {
391 if (!bos[i])
392 break;
393 lima_vm_bo_del(vm, bos[i]);
394 drm_gem_object_put(&bos[i]->base.base);
395 }
396 if (out_sync)
397 drm_syncobj_put(out_sync);
398 return err;
399}
400
401int lima_gem_wait(struct drm_file *file, u32 handle, u32 op, s64 timeout_ns)
402{
403 bool write = op & LIMA_GEM_WAIT_WRITE;
404 long ret, timeout;
405
406 if (!op)
407 return 0;
408
409 timeout = drm_timeout_abs_to_jiffies(timeout_ns);
410
411 ret = drm_gem_dma_resv_wait(file, handle, write, timeout);
412 if (ret == -ETIME)
413 ret = timeout ? -ETIMEDOUT : -EBUSY;
414
415 return ret;
416}
1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
3
4#include <linux/mm.h>
5#include <linux/iosys-map.h>
6#include <linux/sync_file.h>
7#include <linux/pagemap.h>
8#include <linux/shmem_fs.h>
9#include <linux/dma-mapping.h>
10
11#include <drm/drm_file.h>
12#include <drm/drm_syncobj.h>
13#include <drm/drm_utils.h>
14
15#include <drm/lima_drm.h>
16
17#include "lima_drv.h"
18#include "lima_gem.h"
19#include "lima_vm.h"
20
21int lima_heap_alloc(struct lima_bo *bo, struct lima_vm *vm)
22{
23 struct page **pages;
24 struct address_space *mapping = bo->base.base.filp->f_mapping;
25 struct device *dev = bo->base.base.dev->dev;
26 size_t old_size = bo->heap_size;
27 size_t new_size = bo->heap_size ? bo->heap_size * 2 :
28 (lima_heap_init_nr_pages << PAGE_SHIFT);
29 struct sg_table sgt;
30 int i, ret;
31
32 if (bo->heap_size >= bo->base.base.size)
33 return -ENOSPC;
34
35 new_size = min(new_size, bo->base.base.size);
36
37 dma_resv_lock(bo->base.base.resv, NULL);
38
39 if (bo->base.pages) {
40 pages = bo->base.pages;
41 } else {
42 pages = kvmalloc_array(bo->base.base.size >> PAGE_SHIFT,
43 sizeof(*pages), GFP_KERNEL | __GFP_ZERO);
44 if (!pages) {
45 dma_resv_unlock(bo->base.base.resv);
46 return -ENOMEM;
47 }
48
49 bo->base.pages = pages;
50 bo->base.pages_use_count = 1;
51
52 mapping_set_unevictable(mapping);
53 }
54
55 for (i = old_size >> PAGE_SHIFT; i < new_size >> PAGE_SHIFT; i++) {
56 struct page *page = shmem_read_mapping_page(mapping, i);
57
58 if (IS_ERR(page)) {
59 dma_resv_unlock(bo->base.base.resv);
60 return PTR_ERR(page);
61 }
62 pages[i] = page;
63 }
64
65 dma_resv_unlock(bo->base.base.resv);
66
67 ret = sg_alloc_table_from_pages(&sgt, pages, i, 0,
68 new_size, GFP_KERNEL);
69 if (ret)
70 return ret;
71
72 if (bo->base.sgt) {
73 dma_unmap_sgtable(dev, bo->base.sgt, DMA_BIDIRECTIONAL, 0);
74 sg_free_table(bo->base.sgt);
75 } else {
76 bo->base.sgt = kmalloc(sizeof(*bo->base.sgt), GFP_KERNEL);
77 if (!bo->base.sgt) {
78 sg_free_table(&sgt);
79 return -ENOMEM;
80 }
81 }
82
83 ret = dma_map_sgtable(dev, &sgt, DMA_BIDIRECTIONAL, 0);
84 if (ret) {
85 sg_free_table(&sgt);
86 kfree(bo->base.sgt);
87 bo->base.sgt = NULL;
88 return ret;
89 }
90
91 *bo->base.sgt = sgt;
92
93 if (vm) {
94 ret = lima_vm_map_bo(vm, bo, old_size >> PAGE_SHIFT);
95 if (ret)
96 return ret;
97 }
98
99 bo->heap_size = new_size;
100 return 0;
101}
102
103int lima_gem_create_handle(struct drm_device *dev, struct drm_file *file,
104 u32 size, u32 flags, u32 *handle)
105{
106 int err;
107 gfp_t mask;
108 struct drm_gem_shmem_object *shmem;
109 struct drm_gem_object *obj;
110 struct lima_bo *bo;
111 bool is_heap = flags & LIMA_BO_FLAG_HEAP;
112
113 shmem = drm_gem_shmem_create(dev, size);
114 if (IS_ERR(shmem))
115 return PTR_ERR(shmem);
116
117 obj = &shmem->base;
118
119 /* Mali Utgard GPU can only support 32bit address space */
120 mask = mapping_gfp_mask(obj->filp->f_mapping);
121 mask &= ~__GFP_HIGHMEM;
122 mask |= __GFP_DMA32;
123 mapping_set_gfp_mask(obj->filp->f_mapping, mask);
124
125 if (is_heap) {
126 bo = to_lima_bo(obj);
127 err = lima_heap_alloc(bo, NULL);
128 if (err)
129 goto out;
130 } else {
131 struct sg_table *sgt = drm_gem_shmem_get_pages_sgt(shmem);
132
133 if (IS_ERR(sgt)) {
134 err = PTR_ERR(sgt);
135 goto out;
136 }
137 }
138
139 err = drm_gem_handle_create(file, obj, handle);
140
141out:
142 /* drop reference from allocate - handle holds it now */
143 drm_gem_object_put(obj);
144
145 return err;
146}
147
148static void lima_gem_free_object(struct drm_gem_object *obj)
149{
150 struct lima_bo *bo = to_lima_bo(obj);
151
152 if (!list_empty(&bo->va))
153 dev_err(obj->dev->dev, "lima gem free bo still has va\n");
154
155 drm_gem_shmem_free(&bo->base);
156}
157
158static int lima_gem_object_open(struct drm_gem_object *obj, struct drm_file *file)
159{
160 struct lima_bo *bo = to_lima_bo(obj);
161 struct lima_drm_priv *priv = to_lima_drm_priv(file);
162 struct lima_vm *vm = priv->vm;
163
164 return lima_vm_bo_add(vm, bo, true);
165}
166
167static void lima_gem_object_close(struct drm_gem_object *obj, struct drm_file *file)
168{
169 struct lima_bo *bo = to_lima_bo(obj);
170 struct lima_drm_priv *priv = to_lima_drm_priv(file);
171 struct lima_vm *vm = priv->vm;
172
173 lima_vm_bo_del(vm, bo);
174}
175
176static int lima_gem_pin(struct drm_gem_object *obj)
177{
178 struct lima_bo *bo = to_lima_bo(obj);
179
180 if (bo->heap_size)
181 return -EINVAL;
182
183 return drm_gem_shmem_pin(&bo->base);
184}
185
186static int lima_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map)
187{
188 struct lima_bo *bo = to_lima_bo(obj);
189
190 if (bo->heap_size)
191 return -EINVAL;
192
193 return drm_gem_shmem_vmap(&bo->base, map);
194}
195
196static int lima_gem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
197{
198 struct lima_bo *bo = to_lima_bo(obj);
199
200 if (bo->heap_size)
201 return -EINVAL;
202
203 return drm_gem_shmem_mmap(&bo->base, vma);
204}
205
206static const struct drm_gem_object_funcs lima_gem_funcs = {
207 .free = lima_gem_free_object,
208 .open = lima_gem_object_open,
209 .close = lima_gem_object_close,
210 .print_info = drm_gem_shmem_object_print_info,
211 .pin = lima_gem_pin,
212 .unpin = drm_gem_shmem_object_unpin,
213 .get_sg_table = drm_gem_shmem_object_get_sg_table,
214 .vmap = lima_gem_vmap,
215 .vunmap = drm_gem_shmem_object_vunmap,
216 .mmap = lima_gem_mmap,
217 .vm_ops = &drm_gem_shmem_vm_ops,
218};
219
220struct drm_gem_object *lima_gem_create_object(struct drm_device *dev, size_t size)
221{
222 struct lima_bo *bo;
223
224 bo = kzalloc(sizeof(*bo), GFP_KERNEL);
225 if (!bo)
226 return ERR_PTR(-ENOMEM);
227
228 mutex_init(&bo->lock);
229 INIT_LIST_HEAD(&bo->va);
230 bo->base.map_wc = true;
231 bo->base.base.funcs = &lima_gem_funcs;
232
233 return &bo->base.base;
234}
235
236int lima_gem_get_info(struct drm_file *file, u32 handle, u32 *va, u64 *offset)
237{
238 struct drm_gem_object *obj;
239 struct lima_bo *bo;
240 struct lima_drm_priv *priv = to_lima_drm_priv(file);
241 struct lima_vm *vm = priv->vm;
242
243 obj = drm_gem_object_lookup(file, handle);
244 if (!obj)
245 return -ENOENT;
246
247 bo = to_lima_bo(obj);
248
249 *va = lima_vm_get_va(vm, bo);
250
251 *offset = drm_vma_node_offset_addr(&obj->vma_node);
252
253 drm_gem_object_put(obj);
254 return 0;
255}
256
257static int lima_gem_sync_bo(struct lima_sched_task *task, struct lima_bo *bo,
258 bool write, bool explicit)
259{
260 int err;
261
262 err = dma_resv_reserve_fences(lima_bo_resv(bo), 1);
263 if (err)
264 return err;
265
266 /* explicit sync use user passed dep fence */
267 if (explicit)
268 return 0;
269
270 return drm_sched_job_add_implicit_dependencies(&task->base,
271 &bo->base.base,
272 write);
273}
274
275static int lima_gem_add_deps(struct drm_file *file, struct lima_submit *submit)
276{
277 int i, err;
278
279 for (i = 0; i < ARRAY_SIZE(submit->in_sync); i++) {
280 if (!submit->in_sync[i])
281 continue;
282
283 err = drm_sched_job_add_syncobj_dependency(&submit->task->base, file,
284 submit->in_sync[i], 0);
285 if (err)
286 return err;
287 }
288
289 return 0;
290}
291
292int lima_gem_submit(struct drm_file *file, struct lima_submit *submit)
293{
294 int i, err = 0;
295 struct ww_acquire_ctx ctx;
296 struct lima_drm_priv *priv = to_lima_drm_priv(file);
297 struct lima_vm *vm = priv->vm;
298 struct drm_syncobj *out_sync = NULL;
299 struct dma_fence *fence;
300 struct lima_bo **bos = submit->lbos;
301
302 if (submit->out_sync) {
303 out_sync = drm_syncobj_find(file, submit->out_sync);
304 if (!out_sync)
305 return -ENOENT;
306 }
307
308 for (i = 0; i < submit->nr_bos; i++) {
309 struct drm_gem_object *obj;
310 struct lima_bo *bo;
311
312 obj = drm_gem_object_lookup(file, submit->bos[i].handle);
313 if (!obj) {
314 err = -ENOENT;
315 goto err_out0;
316 }
317
318 bo = to_lima_bo(obj);
319
320 /* increase refcnt of gpu va map to prevent unmapped when executing,
321 * will be decreased when task done
322 */
323 err = lima_vm_bo_add(vm, bo, false);
324 if (err) {
325 drm_gem_object_put(obj);
326 goto err_out0;
327 }
328
329 bos[i] = bo;
330 }
331
332 err = drm_gem_lock_reservations((struct drm_gem_object **)bos,
333 submit->nr_bos, &ctx);
334 if (err)
335 goto err_out0;
336
337 err = lima_sched_task_init(
338 submit->task, submit->ctx->context + submit->pipe,
339 bos, submit->nr_bos, vm);
340 if (err)
341 goto err_out1;
342
343 err = lima_gem_add_deps(file, submit);
344 if (err)
345 goto err_out2;
346
347 for (i = 0; i < submit->nr_bos; i++) {
348 err = lima_gem_sync_bo(
349 submit->task, bos[i],
350 submit->bos[i].flags & LIMA_SUBMIT_BO_WRITE,
351 submit->flags & LIMA_SUBMIT_FLAG_EXPLICIT_FENCE);
352 if (err)
353 goto err_out2;
354 }
355
356 fence = lima_sched_context_queue_task(submit->task);
357
358 for (i = 0; i < submit->nr_bos; i++) {
359 dma_resv_add_fence(lima_bo_resv(bos[i]), fence,
360 submit->bos[i].flags & LIMA_SUBMIT_BO_WRITE ?
361 DMA_RESV_USAGE_WRITE : DMA_RESV_USAGE_READ);
362 }
363
364 drm_gem_unlock_reservations((struct drm_gem_object **)bos,
365 submit->nr_bos, &ctx);
366
367 for (i = 0; i < submit->nr_bos; i++)
368 drm_gem_object_put(&bos[i]->base.base);
369
370 if (out_sync) {
371 drm_syncobj_replace_fence(out_sync, fence);
372 drm_syncobj_put(out_sync);
373 }
374
375 dma_fence_put(fence);
376
377 return 0;
378
379err_out2:
380 lima_sched_task_fini(submit->task);
381err_out1:
382 drm_gem_unlock_reservations((struct drm_gem_object **)bos,
383 submit->nr_bos, &ctx);
384err_out0:
385 for (i = 0; i < submit->nr_bos; i++) {
386 if (!bos[i])
387 break;
388 lima_vm_bo_del(vm, bos[i]);
389 drm_gem_object_put(&bos[i]->base.base);
390 }
391 if (out_sync)
392 drm_syncobj_put(out_sync);
393 return err;
394}
395
396int lima_gem_wait(struct drm_file *file, u32 handle, u32 op, s64 timeout_ns)
397{
398 bool write = op & LIMA_GEM_WAIT_WRITE;
399 long ret, timeout;
400
401 if (!op)
402 return 0;
403
404 timeout = drm_timeout_abs_to_jiffies(timeout_ns);
405
406 ret = drm_gem_dma_resv_wait(file, handle, write, timeout);
407 if (ret == -ETIME)
408 ret = timeout ? -ETIMEDOUT : -EBUSY;
409
410 return ret;
411}