2 * Copyright 2013 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Dave Airlie
27 #include "qxl_object.h"
29 #include <linux/io-mapping.h>
30 static void qxl_ttm_bo_destroy(struct ttm_buffer_object *tbo)
33 struct qxl_device *qdev;
36 qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
38 qxl_surface_evict(qdev, bo, false);
39 mutex_lock(&qdev->gem.mutex);
40 list_del_init(&bo->list);
41 mutex_unlock(&qdev->gem.mutex);
42 drm_gem_object_release(&bo->gem_base);
46 bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo)
48 if (bo->destroy == &qxl_ttm_bo_destroy)
53 void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned)
56 u32 pflag = pinned ? TTM_PL_FLAG_NO_EVICT : 0;
59 qbo->placement.placement = qbo->placements;
60 qbo->placement.busy_placement = qbo->placements;
61 if (domain == QXL_GEM_DOMAIN_VRAM)
62 qbo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_VRAM | pflag;
63 if (domain == QXL_GEM_DOMAIN_SURFACE)
64 qbo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_PRIV0 | pflag;
65 if (domain == QXL_GEM_DOMAIN_CPU)
66 qbo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM | pflag;
68 qbo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
69 qbo->placement.num_placement = c;
70 qbo->placement.num_busy_placement = c;
71 for (i = 0; i < c; ++i) {
72 qbo->placements[i].fpfn = 0;
73 qbo->placements[i].lpfn = 0;
78 int qxl_bo_create(struct qxl_device *qdev,
79 unsigned long size, bool kernel, bool pinned, u32 domain,
80 struct qxl_surface *surf,
81 struct qxl_bo **bo_ptr)
84 enum ttm_bo_type type;
88 type = ttm_bo_type_kernel;
90 type = ttm_bo_type_device;
92 bo = kzalloc(sizeof(struct qxl_bo), GFP_KERNEL);
95 size = roundup(size, PAGE_SIZE);
96 r = drm_gem_object_init(qdev->ddev, &bo->gem_base, size);
102 bo->pin_count = pinned ? 1 : 0;
104 INIT_LIST_HEAD(&bo->list);
109 qxl_ttm_placement_from_domain(bo, domain, pinned);
111 r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type,
112 &bo->placement, 0, !kernel, NULL, size,
113 NULL, NULL, &qxl_ttm_bo_destroy);
114 if (unlikely(r != 0)) {
115 if (r != -ERESTARTSYS)
117 "object_init failed for (%lu, 0x%08X)\n",
125 int qxl_bo_kmap(struct qxl_bo *bo, void **ptr)
135 r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
138 bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
144 void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev,
145 struct qxl_bo *bo, int page_offset)
147 struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
150 struct io_mapping *map;
152 if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
153 map = qdev->vram_mapping;
154 else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0)
155 map = qdev->surface_mapping;
159 (void) ttm_mem_io_lock(man, false);
160 ret = ttm_mem_io_reserve(bo->tbo.bdev, &bo->tbo.mem);
161 ttm_mem_io_unlock(man);
163 return io_mapping_map_atomic_wc(map, bo->tbo.mem.bus.offset + page_offset);
166 rptr = bo->kptr + (page_offset * PAGE_SIZE);
170 ret = qxl_bo_kmap(bo, &rptr);
174 rptr += page_offset * PAGE_SIZE;
178 void qxl_bo_kunmap(struct qxl_bo *bo)
180 if (bo->kptr == NULL)
183 ttm_bo_kunmap(&bo->kmap);
186 void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev,
187 struct qxl_bo *bo, void *pmap)
189 struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
190 struct io_mapping *map;
192 if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
193 map = qdev->vram_mapping;
194 else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0)
195 map = qdev->surface_mapping;
199 io_mapping_unmap_atomic(pmap);
201 (void) ttm_mem_io_lock(man, false);
202 ttm_mem_io_free(bo->tbo.bdev, &bo->tbo.mem);
203 ttm_mem_io_unlock(man);
209 void qxl_bo_unref(struct qxl_bo **bo)
214 drm_gem_object_unreference_unlocked(&(*bo)->gem_base);
218 struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo)
220 drm_gem_object_reference(&bo->gem_base);
224 int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr)
226 struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
232 *gpu_addr = qxl_bo_gpu_offset(bo);
235 qxl_ttm_placement_from_domain(bo, domain, true);
236 r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
237 if (likely(r == 0)) {
239 if (gpu_addr != NULL)
240 *gpu_addr = qxl_bo_gpu_offset(bo);
242 if (unlikely(r != 0))
243 dev_err(qdev->dev, "%p pin failed\n", bo);
247 int qxl_bo_unpin(struct qxl_bo *bo)
249 struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
252 if (!bo->pin_count) {
253 dev_warn(qdev->dev, "%p unpin not necessary\n", bo);
259 for (i = 0; i < bo->placement.num_placement; i++)
260 bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
261 r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
262 if (unlikely(r != 0))
263 dev_err(qdev->dev, "%p validate failed for unpin\n", bo);
267 void qxl_bo_force_delete(struct qxl_device *qdev)
269 struct qxl_bo *bo, *n;
271 if (list_empty(&qdev->gem.objects))
273 dev_err(qdev->dev, "Userspace still has active objects !\n");
274 list_for_each_entry_safe(bo, n, &qdev->gem.objects, list) {
275 dev_err(qdev->dev, "%p %p %lu %lu force free\n",
276 &bo->gem_base, bo, (unsigned long)bo->gem_base.size,
277 *((unsigned long *)&bo->gem_base.refcount));
278 mutex_lock(&qdev->gem.mutex);
279 list_del_init(&bo->list);
280 mutex_unlock(&qdev->gem.mutex);
281 /* this should unref the ttm bo */
282 drm_gem_object_unreference_unlocked(&bo->gem_base);
286 int qxl_bo_init(struct qxl_device *qdev)
288 return qxl_ttm_init(qdev);
291 void qxl_bo_fini(struct qxl_device *qdev)
296 int qxl_bo_check_id(struct qxl_device *qdev, struct qxl_bo *bo)
299 if (bo->type == QXL_GEM_DOMAIN_SURFACE && bo->surface_id == 0) {
300 /* allocate a surface id for this surface now */
301 ret = qxl_surface_id_alloc(qdev, bo);
305 ret = qxl_hw_surface_alloc(qdev, bo, NULL);
312 int qxl_surf_evict(struct qxl_device *qdev)
314 return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_PRIV0);
317 int qxl_vram_evict(struct qxl_device *qdev)
319 return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_VRAM);