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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 <linux/delay.h>
27
28#include <drm/drm.h>
29#include <drm/drm_file.h>
30#include <drm/drm_debugfs.h>
31#include <drm/qxl_drm.h>
32#include <drm/ttm/ttm_bo.h>
33#include <drm/ttm/ttm_placement.h>
34#include <drm/ttm/ttm_range_manager.h>
35#include <drm/ttm/ttm_tt.h>
36
37#include "qxl_drv.h"
38#include "qxl_object.h"
39
40static struct qxl_device *qxl_get_qdev(struct ttm_device *bdev)
41{
42 struct qxl_mman *mman;
43 struct qxl_device *qdev;
44
45 mman = container_of(bdev, struct qxl_mman, bdev);
46 qdev = container_of(mman, struct qxl_device, mman);
47 return qdev;
48}
49
50static void qxl_evict_flags(struct ttm_buffer_object *bo,
51 struct ttm_placement *placement)
52{
53 struct qxl_bo *qbo;
54 static const struct ttm_place placements = {
55 .fpfn = 0,
56 .lpfn = 0,
57 .mem_type = TTM_PL_SYSTEM,
58 .flags = 0
59 };
60
61 if (!qxl_ttm_bo_is_qxl_bo(bo)) {
62 placement->placement = &placements;
63 placement->num_placement = 1;
64 return;
65 }
66 qbo = to_qxl_bo(bo);
67 qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU);
68 *placement = qbo->placement;
69}
70
71int qxl_ttm_io_mem_reserve(struct ttm_device *bdev,
72 struct ttm_resource *mem)
73{
74 struct qxl_device *qdev = qxl_get_qdev(bdev);
75
76 switch (mem->mem_type) {
77 case TTM_PL_SYSTEM:
78 /* system memory */
79 return 0;
80 case TTM_PL_VRAM:
81 mem->bus.is_iomem = true;
82 mem->bus.offset = (mem->start << PAGE_SHIFT) + qdev->vram_base;
83 mem->bus.caching = ttm_write_combined;
84 break;
85 case TTM_PL_PRIV:
86 mem->bus.is_iomem = true;
87 mem->bus.offset = (mem->start << PAGE_SHIFT) +
88 qdev->surfaceram_base;
89 mem->bus.caching = ttm_write_combined;
90 break;
91 default:
92 return -EINVAL;
93 }
94 return 0;
95}
96
97/*
98 * TTM backend functions.
99 */
100static void qxl_ttm_backend_destroy(struct ttm_device *bdev, struct ttm_tt *ttm)
101{
102 ttm_tt_fini(ttm);
103 kfree(ttm);
104}
105
106static struct ttm_tt *qxl_ttm_tt_create(struct ttm_buffer_object *bo,
107 uint32_t page_flags)
108{
109 struct ttm_tt *ttm;
110
111 ttm = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL);
112 if (ttm == NULL)
113 return NULL;
114 if (ttm_tt_init(ttm, bo, page_flags, ttm_cached, 0)) {
115 kfree(ttm);
116 return NULL;
117 }
118 return ttm;
119}
120
121static void qxl_bo_move_notify(struct ttm_buffer_object *bo,
122 struct ttm_resource *new_mem)
123{
124 struct qxl_bo *qbo;
125 struct qxl_device *qdev;
126
127 if (!qxl_ttm_bo_is_qxl_bo(bo) || !bo->resource)
128 return;
129 qbo = to_qxl_bo(bo);
130 qdev = to_qxl(qbo->tbo.base.dev);
131
132 if (bo->resource->mem_type == TTM_PL_PRIV && qbo->surface_id)
133 qxl_surface_evict(qdev, qbo, new_mem ? true : false);
134}
135
136static int qxl_bo_move(struct ttm_buffer_object *bo, bool evict,
137 struct ttm_operation_ctx *ctx,
138 struct ttm_resource *new_mem,
139 struct ttm_place *hop)
140{
141 struct ttm_resource *old_mem = bo->resource;
142 int ret;
143
144 if (!old_mem) {
145 if (new_mem->mem_type != TTM_PL_SYSTEM) {
146 hop->mem_type = TTM_PL_SYSTEM;
147 hop->flags = TTM_PL_FLAG_TEMPORARY;
148 return -EMULTIHOP;
149 }
150
151 ttm_bo_move_null(bo, new_mem);
152 return 0;
153 }
154
155 qxl_bo_move_notify(bo, new_mem);
156
157 ret = ttm_bo_wait_ctx(bo, ctx);
158 if (ret)
159 return ret;
160
161 if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
162 ttm_bo_move_null(bo, new_mem);
163 return 0;
164 }
165 return ttm_bo_move_memcpy(bo, ctx, new_mem);
166}
167
168static void qxl_bo_delete_mem_notify(struct ttm_buffer_object *bo)
169{
170 qxl_bo_move_notify(bo, NULL);
171}
172
173static struct ttm_device_funcs qxl_bo_driver = {
174 .ttm_tt_create = &qxl_ttm_tt_create,
175 .ttm_tt_destroy = &qxl_ttm_backend_destroy,
176 .eviction_valuable = ttm_bo_eviction_valuable,
177 .evict_flags = &qxl_evict_flags,
178 .move = &qxl_bo_move,
179 .io_mem_reserve = &qxl_ttm_io_mem_reserve,
180 .delete_mem_notify = &qxl_bo_delete_mem_notify,
181};
182
183static int qxl_ttm_init_mem_type(struct qxl_device *qdev,
184 unsigned int type,
185 uint64_t size)
186{
187 return ttm_range_man_init(&qdev->mman.bdev, type, false, size);
188}
189
190int qxl_ttm_init(struct qxl_device *qdev)
191{
192 int r;
193 int num_io_pages; /* != rom->num_io_pages, we include surface0 */
194
195 /* No others user of address space so set it to 0 */
196 r = ttm_device_init(&qdev->mman.bdev, &qxl_bo_driver, NULL,
197 qdev->ddev.anon_inode->i_mapping,
198 qdev->ddev.vma_offset_manager,
199 false, false);
200 if (r) {
201 DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
202 return r;
203 }
204 /* NOTE: this includes the framebuffer (aka surface 0) */
205 num_io_pages = qdev->rom->ram_header_offset / PAGE_SIZE;
206 r = qxl_ttm_init_mem_type(qdev, TTM_PL_VRAM, num_io_pages);
207 if (r) {
208 DRM_ERROR("Failed initializing VRAM heap.\n");
209 return r;
210 }
211 r = qxl_ttm_init_mem_type(qdev, TTM_PL_PRIV,
212 qdev->surfaceram_size / PAGE_SIZE);
213 if (r) {
214 DRM_ERROR("Failed initializing Surfaces heap.\n");
215 return r;
216 }
217 DRM_INFO("qxl: %uM of VRAM memory size\n",
218 (unsigned int)qdev->vram_size / (1024 * 1024));
219 DRM_INFO("qxl: %luM of IO pages memory ready (VRAM domain)\n",
220 ((unsigned int)num_io_pages * PAGE_SIZE) / (1024 * 1024));
221 DRM_INFO("qxl: %uM of Surface memory size\n",
222 (unsigned int)qdev->surfaceram_size / (1024 * 1024));
223 return 0;
224}
225
226void qxl_ttm_fini(struct qxl_device *qdev)
227{
228 ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_VRAM);
229 ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_PRIV);
230 ttm_device_fini(&qdev->mman.bdev);
231 DRM_INFO("qxl: ttm finalized\n");
232}
233
234void qxl_ttm_debugfs_init(struct qxl_device *qdev)
235{
236#if defined(CONFIG_DEBUG_FS)
237 ttm_resource_manager_create_debugfs(ttm_manager_type(&qdev->mman.bdev,
238 TTM_PL_VRAM),
239 qdev->ddev.primary->debugfs_root, "qxl_mem_mm");
240 ttm_resource_manager_create_debugfs(ttm_manager_type(&qdev->mman.bdev,
241 TTM_PL_PRIV),
242 qdev->ddev.primary->debugfs_root, "qxl_surf_mm");
243#endif
244}
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 <ttm/ttm_bo_api.h>
27#include <ttm/ttm_bo_driver.h>
28#include <ttm/ttm_placement.h>
29#include <ttm/ttm_page_alloc.h>
30#include <ttm/ttm_module.h>
31#include <drm/drmP.h>
32#include <drm/drm.h>
33#include <drm/qxl_drm.h>
34#include "qxl_drv.h"
35#include "qxl_object.h"
36
37#include <linux/delay.h>
38static int qxl_ttm_debugfs_init(struct qxl_device *qdev);
39
40static struct qxl_device *qxl_get_qdev(struct ttm_bo_device *bdev)
41{
42 struct qxl_mman *mman;
43 struct qxl_device *qdev;
44
45 mman = container_of(bdev, struct qxl_mman, bdev);
46 qdev = container_of(mman, struct qxl_device, mman);
47 return qdev;
48}
49
50static int qxl_ttm_mem_global_init(struct drm_global_reference *ref)
51{
52 return ttm_mem_global_init(ref->object);
53}
54
55static void qxl_ttm_mem_global_release(struct drm_global_reference *ref)
56{
57 ttm_mem_global_release(ref->object);
58}
59
60static int qxl_ttm_global_init(struct qxl_device *qdev)
61{
62 struct drm_global_reference *global_ref;
63 int r;
64
65 qdev->mman.mem_global_referenced = false;
66 global_ref = &qdev->mman.mem_global_ref;
67 global_ref->global_type = DRM_GLOBAL_TTM_MEM;
68 global_ref->size = sizeof(struct ttm_mem_global);
69 global_ref->init = &qxl_ttm_mem_global_init;
70 global_ref->release = &qxl_ttm_mem_global_release;
71
72 r = drm_global_item_ref(global_ref);
73 if (r != 0) {
74 DRM_ERROR("Failed setting up TTM memory accounting "
75 "subsystem.\n");
76 return r;
77 }
78
79 qdev->mman.bo_global_ref.mem_glob =
80 qdev->mman.mem_global_ref.object;
81 global_ref = &qdev->mman.bo_global_ref.ref;
82 global_ref->global_type = DRM_GLOBAL_TTM_BO;
83 global_ref->size = sizeof(struct ttm_bo_global);
84 global_ref->init = &ttm_bo_global_init;
85 global_ref->release = &ttm_bo_global_release;
86 r = drm_global_item_ref(global_ref);
87 if (r != 0) {
88 DRM_ERROR("Failed setting up TTM BO subsystem.\n");
89 drm_global_item_unref(&qdev->mman.mem_global_ref);
90 return r;
91 }
92
93 qdev->mman.mem_global_referenced = true;
94 return 0;
95}
96
97static void qxl_ttm_global_fini(struct qxl_device *qdev)
98{
99 if (qdev->mman.mem_global_referenced) {
100 drm_global_item_unref(&qdev->mman.bo_global_ref.ref);
101 drm_global_item_unref(&qdev->mman.mem_global_ref);
102 qdev->mman.mem_global_referenced = false;
103 }
104}
105
106static struct vm_operations_struct qxl_ttm_vm_ops;
107static const struct vm_operations_struct *ttm_vm_ops;
108
109static int qxl_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
110{
111 struct ttm_buffer_object *bo;
112 struct qxl_device *qdev;
113 int r;
114
115 bo = (struct ttm_buffer_object *)vma->vm_private_data;
116 if (bo == NULL)
117 return VM_FAULT_NOPAGE;
118 qdev = qxl_get_qdev(bo->bdev);
119 r = ttm_vm_ops->fault(vma, vmf);
120 return r;
121}
122
123int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
124{
125 struct drm_file *file_priv;
126 struct qxl_device *qdev;
127 int r;
128
129 if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) {
130 pr_info("%s: vma->vm_pgoff (%ld) < DRM_FILE_PAGE_OFFSET\n",
131 __func__, vma->vm_pgoff);
132 return drm_mmap(filp, vma);
133 }
134
135 file_priv = filp->private_data;
136 qdev = file_priv->minor->dev->dev_private;
137 if (qdev == NULL) {
138 DRM_ERROR(
139 "filp->private_data->minor->dev->dev_private == NULL\n");
140 return -EINVAL;
141 }
142 QXL_INFO(qdev, "%s: filp->private_data = 0x%p, vma->vm_pgoff = %lx\n",
143 __func__, filp->private_data, vma->vm_pgoff);
144
145 r = ttm_bo_mmap(filp, vma, &qdev->mman.bdev);
146 if (unlikely(r != 0))
147 return r;
148 if (unlikely(ttm_vm_ops == NULL)) {
149 ttm_vm_ops = vma->vm_ops;
150 qxl_ttm_vm_ops = *ttm_vm_ops;
151 qxl_ttm_vm_ops.fault = &qxl_ttm_fault;
152 }
153 vma->vm_ops = &qxl_ttm_vm_ops;
154 return 0;
155}
156
157static int qxl_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
158{
159 return 0;
160}
161
162static int qxl_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
163 struct ttm_mem_type_manager *man)
164{
165 struct qxl_device *qdev;
166
167 qdev = qxl_get_qdev(bdev);
168
169 switch (type) {
170 case TTM_PL_SYSTEM:
171 /* System memory */
172 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
173 man->available_caching = TTM_PL_MASK_CACHING;
174 man->default_caching = TTM_PL_FLAG_CACHED;
175 break;
176 case TTM_PL_VRAM:
177 case TTM_PL_PRIV0:
178 /* "On-card" video ram */
179 man->func = &ttm_bo_manager_func;
180 man->gpu_offset = 0;
181 man->flags = TTM_MEMTYPE_FLAG_FIXED |
182 TTM_MEMTYPE_FLAG_MAPPABLE;
183 man->available_caching = TTM_PL_MASK_CACHING;
184 man->default_caching = TTM_PL_FLAG_CACHED;
185 break;
186 default:
187 DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
188 return -EINVAL;
189 }
190 return 0;
191}
192
193static void qxl_evict_flags(struct ttm_buffer_object *bo,
194 struct ttm_placement *placement)
195{
196 struct qxl_bo *qbo;
197 static u32 placements = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
198
199 if (!qxl_ttm_bo_is_qxl_bo(bo)) {
200 placement->fpfn = 0;
201 placement->lpfn = 0;
202 placement->placement = &placements;
203 placement->busy_placement = &placements;
204 placement->num_placement = 1;
205 placement->num_busy_placement = 1;
206 return;
207 }
208 qbo = container_of(bo, struct qxl_bo, tbo);
209 qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU, false);
210 *placement = qbo->placement;
211}
212
213static int qxl_verify_access(struct ttm_buffer_object *bo, struct file *filp)
214{
215 struct qxl_bo *qbo = to_qxl_bo(bo);
216
217 return drm_vma_node_verify_access(&qbo->gem_base.vma_node, filp);
218}
219
220static int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
221 struct ttm_mem_reg *mem)
222{
223 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
224 struct qxl_device *qdev = qxl_get_qdev(bdev);
225
226 mem->bus.addr = NULL;
227 mem->bus.offset = 0;
228 mem->bus.size = mem->num_pages << PAGE_SHIFT;
229 mem->bus.base = 0;
230 mem->bus.is_iomem = false;
231 if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
232 return -EINVAL;
233 switch (mem->mem_type) {
234 case TTM_PL_SYSTEM:
235 /* system memory */
236 return 0;
237 case TTM_PL_VRAM:
238 mem->bus.is_iomem = true;
239 mem->bus.base = qdev->vram_base;
240 mem->bus.offset = mem->start << PAGE_SHIFT;
241 break;
242 case TTM_PL_PRIV0:
243 mem->bus.is_iomem = true;
244 mem->bus.base = qdev->surfaceram_base;
245 mem->bus.offset = mem->start << PAGE_SHIFT;
246 break;
247 default:
248 return -EINVAL;
249 }
250 return 0;
251}
252
253static void qxl_ttm_io_mem_free(struct ttm_bo_device *bdev,
254 struct ttm_mem_reg *mem)
255{
256}
257
258/*
259 * TTM backend functions.
260 */
261struct qxl_ttm_tt {
262 struct ttm_dma_tt ttm;
263 struct qxl_device *qdev;
264 u64 offset;
265};
266
267static int qxl_ttm_backend_bind(struct ttm_tt *ttm,
268 struct ttm_mem_reg *bo_mem)
269{
270 struct qxl_ttm_tt *gtt = (void *)ttm;
271
272 gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT);
273 if (!ttm->num_pages) {
274 WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n",
275 ttm->num_pages, bo_mem, ttm);
276 }
277 /* Not implemented */
278 return -1;
279}
280
281static int qxl_ttm_backend_unbind(struct ttm_tt *ttm)
282{
283 /* Not implemented */
284 return -1;
285}
286
287static void qxl_ttm_backend_destroy(struct ttm_tt *ttm)
288{
289 struct qxl_ttm_tt *gtt = (void *)ttm;
290
291 ttm_dma_tt_fini(>t->ttm);
292 kfree(gtt);
293}
294
295static struct ttm_backend_func qxl_backend_func = {
296 .bind = &qxl_ttm_backend_bind,
297 .unbind = &qxl_ttm_backend_unbind,
298 .destroy = &qxl_ttm_backend_destroy,
299};
300
301static int qxl_ttm_tt_populate(struct ttm_tt *ttm)
302{
303 int r;
304
305 if (ttm->state != tt_unpopulated)
306 return 0;
307
308 r = ttm_pool_populate(ttm);
309 if (r)
310 return r;
311
312 return 0;
313}
314
315static void qxl_ttm_tt_unpopulate(struct ttm_tt *ttm)
316{
317 ttm_pool_unpopulate(ttm);
318}
319
320static struct ttm_tt *qxl_ttm_tt_create(struct ttm_bo_device *bdev,
321 unsigned long size, uint32_t page_flags,
322 struct page *dummy_read_page)
323{
324 struct qxl_device *qdev;
325 struct qxl_ttm_tt *gtt;
326
327 qdev = qxl_get_qdev(bdev);
328 gtt = kzalloc(sizeof(struct qxl_ttm_tt), GFP_KERNEL);
329 if (gtt == NULL)
330 return NULL;
331 gtt->ttm.ttm.func = &qxl_backend_func;
332 gtt->qdev = qdev;
333 if (ttm_dma_tt_init(>t->ttm, bdev, size, page_flags,
334 dummy_read_page)) {
335 kfree(gtt);
336 return NULL;
337 }
338 return >t->ttm.ttm;
339}
340
341static void qxl_move_null(struct ttm_buffer_object *bo,
342 struct ttm_mem_reg *new_mem)
343{
344 struct ttm_mem_reg *old_mem = &bo->mem;
345
346 BUG_ON(old_mem->mm_node != NULL);
347 *old_mem = *new_mem;
348 new_mem->mm_node = NULL;
349}
350
351static int qxl_bo_move(struct ttm_buffer_object *bo,
352 bool evict, bool interruptible,
353 bool no_wait_gpu,
354 struct ttm_mem_reg *new_mem)
355{
356 struct ttm_mem_reg *old_mem = &bo->mem;
357 if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
358 qxl_move_null(bo, new_mem);
359 return 0;
360 }
361 return ttm_bo_move_memcpy(bo, evict, no_wait_gpu, new_mem);
362}
363
364
365static int qxl_sync_obj_wait(void *sync_obj,
366 bool lazy, bool interruptible)
367{
368 struct qxl_fence *qfence = (struct qxl_fence *)sync_obj;
369 int count = 0, sc = 0;
370 struct qxl_bo *bo = container_of(qfence, struct qxl_bo, fence);
371
372 if (qfence->num_active_releases == 0)
373 return 0;
374
375retry:
376 if (sc == 0) {
377 if (bo->type == QXL_GEM_DOMAIN_SURFACE)
378 qxl_update_surface(qfence->qdev, bo);
379 } else if (sc >= 1) {
380 qxl_io_notify_oom(qfence->qdev);
381 }
382
383 sc++;
384
385 for (count = 0; count < 10; count++) {
386 bool ret;
387 ret = qxl_queue_garbage_collect(qfence->qdev, true);
388 if (ret == false)
389 break;
390
391 if (qfence->num_active_releases == 0)
392 return 0;
393 }
394
395 if (qfence->num_active_releases) {
396 bool have_drawable_releases = false;
397 void **slot;
398 struct radix_tree_iter iter;
399 int release_id;
400
401 radix_tree_for_each_slot(slot, &qfence->tree, &iter, 0) {
402 struct qxl_release *release;
403
404 release_id = iter.index;
405 release = qxl_release_from_id_locked(qfence->qdev, release_id);
406 if (release == NULL)
407 continue;
408
409 if (release->type == QXL_RELEASE_DRAWABLE)
410 have_drawable_releases = true;
411 }
412
413 qxl_queue_garbage_collect(qfence->qdev, true);
414
415 if (have_drawable_releases || sc < 4) {
416 if (sc > 2)
417 /* back off */
418 usleep_range(500, 1000);
419 if (have_drawable_releases && sc > 300) {
420 WARN(1, "sync obj %d still has outstanding releases %d %d %d %ld %d\n", sc, bo->surface_id, bo->is_primary, bo->pin_count, (unsigned long)bo->gem_base.size, qfence->num_active_releases);
421 return -EBUSY;
422 }
423 goto retry;
424 }
425 }
426 return 0;
427}
428
429static int qxl_sync_obj_flush(void *sync_obj)
430{
431 return 0;
432}
433
434static void qxl_sync_obj_unref(void **sync_obj)
435{
436 *sync_obj = NULL;
437}
438
439static void *qxl_sync_obj_ref(void *sync_obj)
440{
441 return sync_obj;
442}
443
444static bool qxl_sync_obj_signaled(void *sync_obj)
445{
446 struct qxl_fence *qfence = (struct qxl_fence *)sync_obj;
447 return (qfence->num_active_releases == 0);
448}
449
450static void qxl_bo_move_notify(struct ttm_buffer_object *bo,
451 struct ttm_mem_reg *new_mem)
452{
453 struct qxl_bo *qbo;
454 struct qxl_device *qdev;
455
456 if (!qxl_ttm_bo_is_qxl_bo(bo))
457 return;
458 qbo = container_of(bo, struct qxl_bo, tbo);
459 qdev = qbo->gem_base.dev->dev_private;
460
461 if (bo->mem.mem_type == TTM_PL_PRIV0 && qbo->surface_id)
462 qxl_surface_evict(qdev, qbo, new_mem ? true : false);
463}
464
465static struct ttm_bo_driver qxl_bo_driver = {
466 .ttm_tt_create = &qxl_ttm_tt_create,
467 .ttm_tt_populate = &qxl_ttm_tt_populate,
468 .ttm_tt_unpopulate = &qxl_ttm_tt_unpopulate,
469 .invalidate_caches = &qxl_invalidate_caches,
470 .init_mem_type = &qxl_init_mem_type,
471 .evict_flags = &qxl_evict_flags,
472 .move = &qxl_bo_move,
473 .verify_access = &qxl_verify_access,
474 .io_mem_reserve = &qxl_ttm_io_mem_reserve,
475 .io_mem_free = &qxl_ttm_io_mem_free,
476 .sync_obj_signaled = &qxl_sync_obj_signaled,
477 .sync_obj_wait = &qxl_sync_obj_wait,
478 .sync_obj_flush = &qxl_sync_obj_flush,
479 .sync_obj_unref = &qxl_sync_obj_unref,
480 .sync_obj_ref = &qxl_sync_obj_ref,
481 .move_notify = &qxl_bo_move_notify,
482};
483
484
485
486int qxl_ttm_init(struct qxl_device *qdev)
487{
488 int r;
489 int num_io_pages; /* != rom->num_io_pages, we include surface0 */
490
491 r = qxl_ttm_global_init(qdev);
492 if (r)
493 return r;
494 /* No others user of address space so set it to 0 */
495 r = ttm_bo_device_init(&qdev->mman.bdev,
496 qdev->mman.bo_global_ref.ref.object,
497 &qxl_bo_driver,
498 qdev->ddev->anon_inode->i_mapping,
499 DRM_FILE_PAGE_OFFSET, 0);
500 if (r) {
501 DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
502 return r;
503 }
504 /* NOTE: this includes the framebuffer (aka surface 0) */
505 num_io_pages = qdev->rom->ram_header_offset / PAGE_SIZE;
506 r = ttm_bo_init_mm(&qdev->mman.bdev, TTM_PL_VRAM,
507 num_io_pages);
508 if (r) {
509 DRM_ERROR("Failed initializing VRAM heap.\n");
510 return r;
511 }
512 r = ttm_bo_init_mm(&qdev->mman.bdev, TTM_PL_PRIV0,
513 qdev->surfaceram_size / PAGE_SIZE);
514 if (r) {
515 DRM_ERROR("Failed initializing Surfaces heap.\n");
516 return r;
517 }
518 DRM_INFO("qxl: %uM of VRAM memory size\n",
519 (unsigned)qdev->vram_size / (1024 * 1024));
520 DRM_INFO("qxl: %luM of IO pages memory ready (VRAM domain)\n",
521 ((unsigned)num_io_pages * PAGE_SIZE) / (1024 * 1024));
522 DRM_INFO("qxl: %uM of Surface memory size\n",
523 (unsigned)qdev->surfaceram_size / (1024 * 1024));
524 r = qxl_ttm_debugfs_init(qdev);
525 if (r) {
526 DRM_ERROR("Failed to init debugfs\n");
527 return r;
528 }
529 return 0;
530}
531
532void qxl_ttm_fini(struct qxl_device *qdev)
533{
534 ttm_bo_clean_mm(&qdev->mman.bdev, TTM_PL_VRAM);
535 ttm_bo_clean_mm(&qdev->mman.bdev, TTM_PL_PRIV0);
536 ttm_bo_device_release(&qdev->mman.bdev);
537 qxl_ttm_global_fini(qdev);
538 DRM_INFO("qxl: ttm finalized\n");
539}
540
541
542#define QXL_DEBUGFS_MEM_TYPES 2
543
544#if defined(CONFIG_DEBUG_FS)
545static int qxl_mm_dump_table(struct seq_file *m, void *data)
546{
547 struct drm_info_node *node = (struct drm_info_node *)m->private;
548 struct drm_mm *mm = (struct drm_mm *)node->info_ent->data;
549 struct drm_device *dev = node->minor->dev;
550 struct qxl_device *rdev = dev->dev_private;
551 int ret;
552 struct ttm_bo_global *glob = rdev->mman.bdev.glob;
553
554 spin_lock(&glob->lru_lock);
555 ret = drm_mm_dump_table(m, mm);
556 spin_unlock(&glob->lru_lock);
557 return ret;
558}
559#endif
560
561static int qxl_ttm_debugfs_init(struct qxl_device *qdev)
562{
563#if defined(CONFIG_DEBUG_FS)
564 static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES];
565 static char qxl_mem_types_names[QXL_DEBUGFS_MEM_TYPES][32];
566 unsigned i;
567
568 for (i = 0; i < QXL_DEBUGFS_MEM_TYPES; i++) {
569 if (i == 0)
570 sprintf(qxl_mem_types_names[i], "qxl_mem_mm");
571 else
572 sprintf(qxl_mem_types_names[i], "qxl_surf_mm");
573 qxl_mem_types_list[i].name = qxl_mem_types_names[i];
574 qxl_mem_types_list[i].show = &qxl_mm_dump_table;
575 qxl_mem_types_list[i].driver_features = 0;
576 if (i == 0)
577 qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
578 else
579 qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
580
581 }
582 return qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);
583#else
584 return 0;
585#endif
586}