1/**************************************************************************
2 *
3 * Copyright (c) 2007-2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27/*
28 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
29 */
30
31#include <sys/cdefs.h>
| 1/**************************************************************************
2 *
3 * Copyright (c) 2007-2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27/*
28 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
29 */
30
31#include <sys/cdefs.h>
|
32__FBSDID("$FreeBSD: head/sys/dev/drm2/ttm/ttm_bo_util.c 254025 2013-08-07 06:21:20Z jeff $");
| 32__FBSDID("$FreeBSD: head/sys/dev/drm2/ttm/ttm_bo_util.c 254866 2013-08-25 14:55:08Z dumbbell $");
|
33
34#include <dev/drm2/drmP.h>
35#include <dev/drm2/ttm/ttm_bo_driver.h>
36#include <dev/drm2/ttm/ttm_placement.h>
37#include <sys/sf_buf.h>
38
39void ttm_bo_free_old_node(struct ttm_buffer_object *bo)
40{
41 ttm_bo_mem_put(bo, &bo->mem);
42}
43
44int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
45 bool evict,
46 bool no_wait_gpu, struct ttm_mem_reg *new_mem)
47{
48 struct ttm_tt *ttm = bo->ttm;
49 struct ttm_mem_reg *old_mem = &bo->mem;
50 int ret;
51
52 if (old_mem->mem_type != TTM_PL_SYSTEM) {
53 ttm_tt_unbind(ttm);
54 ttm_bo_free_old_node(bo);
55 ttm_flag_masked(&old_mem->placement, TTM_PL_FLAG_SYSTEM,
56 TTM_PL_MASK_MEM);
57 old_mem->mem_type = TTM_PL_SYSTEM;
58 }
59
60 ret = ttm_tt_set_placement_caching(ttm, new_mem->placement);
61 if (unlikely(ret != 0))
62 return ret;
63
64 if (new_mem->mem_type != TTM_PL_SYSTEM) {
65 ret = ttm_tt_bind(ttm, new_mem);
66 if (unlikely(ret != 0))
67 return ret;
68 }
69
70 *old_mem = *new_mem;
71 new_mem->mm_node = NULL;
72
73 return 0;
74}
75
76int ttm_mem_io_lock(struct ttm_mem_type_manager *man, bool interruptible)
77{
78 if (likely(man->io_reserve_fastpath))
79 return 0;
80
81 if (interruptible) {
82 if (sx_xlock_sig(&man->io_reserve_mutex))
83 return (-EINTR);
84 else
85 return (0);
86 }
87
88 sx_xlock(&man->io_reserve_mutex);
89 return 0;
90}
91
92void ttm_mem_io_unlock(struct ttm_mem_type_manager *man)
93{
94 if (likely(man->io_reserve_fastpath))
95 return;
96
97 sx_xunlock(&man->io_reserve_mutex);
98}
99
100static int ttm_mem_io_evict(struct ttm_mem_type_manager *man)
101{
102 struct ttm_buffer_object *bo;
103
104 if (!man->use_io_reserve_lru || list_empty(&man->io_reserve_lru))
105 return -EAGAIN;
106
107 bo = list_first_entry(&man->io_reserve_lru,
108 struct ttm_buffer_object,
109 io_reserve_lru);
110 list_del_init(&bo->io_reserve_lru);
111 ttm_bo_unmap_virtual_locked(bo);
112
113 return 0;
114}
115
116static int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
117 struct ttm_mem_reg *mem)
118{
119 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
120 int ret = 0;
121
122 if (!bdev->driver->io_mem_reserve)
123 return 0;
124 if (likely(man->io_reserve_fastpath))
125 return bdev->driver->io_mem_reserve(bdev, mem);
126
127 if (bdev->driver->io_mem_reserve &&
128 mem->bus.io_reserved_count++ == 0) {
129retry:
130 ret = bdev->driver->io_mem_reserve(bdev, mem);
131 if (ret == -EAGAIN) {
132 ret = ttm_mem_io_evict(man);
133 if (ret == 0)
134 goto retry;
135 }
136 }
137 return ret;
138}
139
140static void ttm_mem_io_free(struct ttm_bo_device *bdev,
141 struct ttm_mem_reg *mem)
142{
143 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
144
145 if (likely(man->io_reserve_fastpath))
146 return;
147
148 if (bdev->driver->io_mem_reserve &&
149 --mem->bus.io_reserved_count == 0 &&
150 bdev->driver->io_mem_free)
151 bdev->driver->io_mem_free(bdev, mem);
152
153}
154
155int ttm_mem_io_reserve_vm(struct ttm_buffer_object *bo)
156{
157 struct ttm_mem_reg *mem = &bo->mem;
158 int ret;
159
160 if (!mem->bus.io_reserved_vm) {
161 struct ttm_mem_type_manager *man =
162 &bo->bdev->man[mem->mem_type];
163
164 ret = ttm_mem_io_reserve(bo->bdev, mem);
165 if (unlikely(ret != 0))
166 return ret;
167 mem->bus.io_reserved_vm = true;
168 if (man->use_io_reserve_lru)
169 list_add_tail(&bo->io_reserve_lru,
170 &man->io_reserve_lru);
171 }
172 return 0;
173}
174
175void ttm_mem_io_free_vm(struct ttm_buffer_object *bo)
176{
177 struct ttm_mem_reg *mem = &bo->mem;
178
179 if (mem->bus.io_reserved_vm) {
180 mem->bus.io_reserved_vm = false;
181 list_del_init(&bo->io_reserve_lru);
182 ttm_mem_io_free(bo->bdev, mem);
183 }
184}
185
186static
187int ttm_mem_reg_ioremap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem,
188 void **virtual)
189{
190 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
191 int ret;
192 void *addr;
193
194 *virtual = NULL;
195 (void) ttm_mem_io_lock(man, false);
196 ret = ttm_mem_io_reserve(bdev, mem);
197 ttm_mem_io_unlock(man);
198 if (ret || !mem->bus.is_iomem)
199 return ret;
200
201 if (mem->bus.addr) {
202 addr = mem->bus.addr;
203 } else {
204 addr = pmap_mapdev_attr(mem->bus.base + mem->bus.offset,
205 mem->bus.size, (mem->placement & TTM_PL_FLAG_WC) ?
206 VM_MEMATTR_WRITE_COMBINING : VM_MEMATTR_UNCACHEABLE);
207 if (!addr) {
208 (void) ttm_mem_io_lock(man, false);
209 ttm_mem_io_free(bdev, mem);
210 ttm_mem_io_unlock(man);
211 return -ENOMEM;
212 }
213 }
214 *virtual = addr;
215 return 0;
216}
217
218static
219void ttm_mem_reg_iounmap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem,
220 void *virtual)
221{
222 struct ttm_mem_type_manager *man;
223
224 man = &bdev->man[mem->mem_type];
225
226 if (virtual && mem->bus.addr == NULL)
227 pmap_unmapdev((vm_offset_t)virtual, mem->bus.size);
228 (void) ttm_mem_io_lock(man, false);
229 ttm_mem_io_free(bdev, mem);
230 ttm_mem_io_unlock(man);
231}
232
233static int ttm_copy_io_page(void *dst, void *src, unsigned long page)
234{
235 uint32_t *dstP =
236 (uint32_t *) ((unsigned long)dst + (page << PAGE_SHIFT));
237 uint32_t *srcP =
238 (uint32_t *) ((unsigned long)src + (page << PAGE_SHIFT));
239
240 int i;
241 for (i = 0; i < PAGE_SIZE / sizeof(uint32_t); ++i)
242 /* iowrite32(ioread32(srcP++), dstP++); */
243 *dstP++ = *srcP++;
244 return 0;
245}
246
247static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src,
248 unsigned long page,
249 vm_memattr_t prot)
250{
251 vm_page_t d = ttm->pages[page];
252 void *dst;
253
254 if (!d)
255 return -ENOMEM;
256
257 src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
258
259 /* XXXKIB can't sleep ? */
260 dst = pmap_mapdev_attr(VM_PAGE_TO_PHYS(d), PAGE_SIZE, prot);
261 if (!dst)
262 return -ENOMEM;
263
264 memcpy(dst, src, PAGE_SIZE);
265
266 pmap_unmapdev((vm_offset_t)dst, PAGE_SIZE);
267
268 return 0;
269}
270
271static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst,
272 unsigned long page,
273 vm_memattr_t prot)
274{
275 vm_page_t s = ttm->pages[page];
276 void *src;
277
278 if (!s)
279 return -ENOMEM;
280
281 dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
282 src = pmap_mapdev_attr(VM_PAGE_TO_PHYS(s), PAGE_SIZE, prot);
283 if (!src)
284 return -ENOMEM;
285
286 memcpy(dst, src, PAGE_SIZE);
287
288 pmap_unmapdev((vm_offset_t)src, PAGE_SIZE);
289
290 return 0;
291}
292
293int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
294 bool evict, bool no_wait_gpu,
295 struct ttm_mem_reg *new_mem)
296{
297 struct ttm_bo_device *bdev = bo->bdev;
298 struct ttm_mem_type_manager *man = &bdev->man[new_mem->mem_type];
299 struct ttm_tt *ttm = bo->ttm;
300 struct ttm_mem_reg *old_mem = &bo->mem;
301 struct ttm_mem_reg old_copy = *old_mem;
302 void *old_iomap;
303 void *new_iomap;
304 int ret;
305 unsigned long i;
306 unsigned long page;
307 unsigned long add = 0;
308 int dir;
309
310 ret = ttm_mem_reg_ioremap(bdev, old_mem, &old_iomap);
311 if (ret)
312 return ret;
313 ret = ttm_mem_reg_ioremap(bdev, new_mem, &new_iomap);
314 if (ret)
315 goto out;
316
317 if (old_iomap == NULL && new_iomap == NULL)
318 goto out2;
319 if (old_iomap == NULL && ttm == NULL)
320 goto out2;
321
322 if (ttm->state == tt_unpopulated) {
323 ret = ttm->bdev->driver->ttm_tt_populate(ttm);
| 33
34#include <dev/drm2/drmP.h>
35#include <dev/drm2/ttm/ttm_bo_driver.h>
36#include <dev/drm2/ttm/ttm_placement.h>
37#include <sys/sf_buf.h>
38
39void ttm_bo_free_old_node(struct ttm_buffer_object *bo)
40{
41 ttm_bo_mem_put(bo, &bo->mem);
42}
43
44int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
45 bool evict,
46 bool no_wait_gpu, struct ttm_mem_reg *new_mem)
47{
48 struct ttm_tt *ttm = bo->ttm;
49 struct ttm_mem_reg *old_mem = &bo->mem;
50 int ret;
51
52 if (old_mem->mem_type != TTM_PL_SYSTEM) {
53 ttm_tt_unbind(ttm);
54 ttm_bo_free_old_node(bo);
55 ttm_flag_masked(&old_mem->placement, TTM_PL_FLAG_SYSTEM,
56 TTM_PL_MASK_MEM);
57 old_mem->mem_type = TTM_PL_SYSTEM;
58 }
59
60 ret = ttm_tt_set_placement_caching(ttm, new_mem->placement);
61 if (unlikely(ret != 0))
62 return ret;
63
64 if (new_mem->mem_type != TTM_PL_SYSTEM) {
65 ret = ttm_tt_bind(ttm, new_mem);
66 if (unlikely(ret != 0))
67 return ret;
68 }
69
70 *old_mem = *new_mem;
71 new_mem->mm_node = NULL;
72
73 return 0;
74}
75
76int ttm_mem_io_lock(struct ttm_mem_type_manager *man, bool interruptible)
77{
78 if (likely(man->io_reserve_fastpath))
79 return 0;
80
81 if (interruptible) {
82 if (sx_xlock_sig(&man->io_reserve_mutex))
83 return (-EINTR);
84 else
85 return (0);
86 }
87
88 sx_xlock(&man->io_reserve_mutex);
89 return 0;
90}
91
92void ttm_mem_io_unlock(struct ttm_mem_type_manager *man)
93{
94 if (likely(man->io_reserve_fastpath))
95 return;
96
97 sx_xunlock(&man->io_reserve_mutex);
98}
99
100static int ttm_mem_io_evict(struct ttm_mem_type_manager *man)
101{
102 struct ttm_buffer_object *bo;
103
104 if (!man->use_io_reserve_lru || list_empty(&man->io_reserve_lru))
105 return -EAGAIN;
106
107 bo = list_first_entry(&man->io_reserve_lru,
108 struct ttm_buffer_object,
109 io_reserve_lru);
110 list_del_init(&bo->io_reserve_lru);
111 ttm_bo_unmap_virtual_locked(bo);
112
113 return 0;
114}
115
116static int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
117 struct ttm_mem_reg *mem)
118{
119 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
120 int ret = 0;
121
122 if (!bdev->driver->io_mem_reserve)
123 return 0;
124 if (likely(man->io_reserve_fastpath))
125 return bdev->driver->io_mem_reserve(bdev, mem);
126
127 if (bdev->driver->io_mem_reserve &&
128 mem->bus.io_reserved_count++ == 0) {
129retry:
130 ret = bdev->driver->io_mem_reserve(bdev, mem);
131 if (ret == -EAGAIN) {
132 ret = ttm_mem_io_evict(man);
133 if (ret == 0)
134 goto retry;
135 }
136 }
137 return ret;
138}
139
140static void ttm_mem_io_free(struct ttm_bo_device *bdev,
141 struct ttm_mem_reg *mem)
142{
143 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
144
145 if (likely(man->io_reserve_fastpath))
146 return;
147
148 if (bdev->driver->io_mem_reserve &&
149 --mem->bus.io_reserved_count == 0 &&
150 bdev->driver->io_mem_free)
151 bdev->driver->io_mem_free(bdev, mem);
152
153}
154
155int ttm_mem_io_reserve_vm(struct ttm_buffer_object *bo)
156{
157 struct ttm_mem_reg *mem = &bo->mem;
158 int ret;
159
160 if (!mem->bus.io_reserved_vm) {
161 struct ttm_mem_type_manager *man =
162 &bo->bdev->man[mem->mem_type];
163
164 ret = ttm_mem_io_reserve(bo->bdev, mem);
165 if (unlikely(ret != 0))
166 return ret;
167 mem->bus.io_reserved_vm = true;
168 if (man->use_io_reserve_lru)
169 list_add_tail(&bo->io_reserve_lru,
170 &man->io_reserve_lru);
171 }
172 return 0;
173}
174
175void ttm_mem_io_free_vm(struct ttm_buffer_object *bo)
176{
177 struct ttm_mem_reg *mem = &bo->mem;
178
179 if (mem->bus.io_reserved_vm) {
180 mem->bus.io_reserved_vm = false;
181 list_del_init(&bo->io_reserve_lru);
182 ttm_mem_io_free(bo->bdev, mem);
183 }
184}
185
186static
187int ttm_mem_reg_ioremap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem,
188 void **virtual)
189{
190 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
191 int ret;
192 void *addr;
193
194 *virtual = NULL;
195 (void) ttm_mem_io_lock(man, false);
196 ret = ttm_mem_io_reserve(bdev, mem);
197 ttm_mem_io_unlock(man);
198 if (ret || !mem->bus.is_iomem)
199 return ret;
200
201 if (mem->bus.addr) {
202 addr = mem->bus.addr;
203 } else {
204 addr = pmap_mapdev_attr(mem->bus.base + mem->bus.offset,
205 mem->bus.size, (mem->placement & TTM_PL_FLAG_WC) ?
206 VM_MEMATTR_WRITE_COMBINING : VM_MEMATTR_UNCACHEABLE);
207 if (!addr) {
208 (void) ttm_mem_io_lock(man, false);
209 ttm_mem_io_free(bdev, mem);
210 ttm_mem_io_unlock(man);
211 return -ENOMEM;
212 }
213 }
214 *virtual = addr;
215 return 0;
216}
217
218static
219void ttm_mem_reg_iounmap(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem,
220 void *virtual)
221{
222 struct ttm_mem_type_manager *man;
223
224 man = &bdev->man[mem->mem_type];
225
226 if (virtual && mem->bus.addr == NULL)
227 pmap_unmapdev((vm_offset_t)virtual, mem->bus.size);
228 (void) ttm_mem_io_lock(man, false);
229 ttm_mem_io_free(bdev, mem);
230 ttm_mem_io_unlock(man);
231}
232
233static int ttm_copy_io_page(void *dst, void *src, unsigned long page)
234{
235 uint32_t *dstP =
236 (uint32_t *) ((unsigned long)dst + (page << PAGE_SHIFT));
237 uint32_t *srcP =
238 (uint32_t *) ((unsigned long)src + (page << PAGE_SHIFT));
239
240 int i;
241 for (i = 0; i < PAGE_SIZE / sizeof(uint32_t); ++i)
242 /* iowrite32(ioread32(srcP++), dstP++); */
243 *dstP++ = *srcP++;
244 return 0;
245}
246
247static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src,
248 unsigned long page,
249 vm_memattr_t prot)
250{
251 vm_page_t d = ttm->pages[page];
252 void *dst;
253
254 if (!d)
255 return -ENOMEM;
256
257 src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
258
259 /* XXXKIB can't sleep ? */
260 dst = pmap_mapdev_attr(VM_PAGE_TO_PHYS(d), PAGE_SIZE, prot);
261 if (!dst)
262 return -ENOMEM;
263
264 memcpy(dst, src, PAGE_SIZE);
265
266 pmap_unmapdev((vm_offset_t)dst, PAGE_SIZE);
267
268 return 0;
269}
270
271static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst,
272 unsigned long page,
273 vm_memattr_t prot)
274{
275 vm_page_t s = ttm->pages[page];
276 void *src;
277
278 if (!s)
279 return -ENOMEM;
280
281 dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
282 src = pmap_mapdev_attr(VM_PAGE_TO_PHYS(s), PAGE_SIZE, prot);
283 if (!src)
284 return -ENOMEM;
285
286 memcpy(dst, src, PAGE_SIZE);
287
288 pmap_unmapdev((vm_offset_t)src, PAGE_SIZE);
289
290 return 0;
291}
292
293int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
294 bool evict, bool no_wait_gpu,
295 struct ttm_mem_reg *new_mem)
296{
297 struct ttm_bo_device *bdev = bo->bdev;
298 struct ttm_mem_type_manager *man = &bdev->man[new_mem->mem_type];
299 struct ttm_tt *ttm = bo->ttm;
300 struct ttm_mem_reg *old_mem = &bo->mem;
301 struct ttm_mem_reg old_copy = *old_mem;
302 void *old_iomap;
303 void *new_iomap;
304 int ret;
305 unsigned long i;
306 unsigned long page;
307 unsigned long add = 0;
308 int dir;
309
310 ret = ttm_mem_reg_ioremap(bdev, old_mem, &old_iomap);
311 if (ret)
312 return ret;
313 ret = ttm_mem_reg_ioremap(bdev, new_mem, &new_iomap);
314 if (ret)
315 goto out;
316
317 if (old_iomap == NULL && new_iomap == NULL)
318 goto out2;
319 if (old_iomap == NULL && ttm == NULL)
320 goto out2;
321
322 if (ttm->state == tt_unpopulated) {
323 ret = ttm->bdev->driver->ttm_tt_populate(ttm);
|
324 if (ret)
| 324 if (ret) {
325 /* if we fail here don't nuke the mm node
326 * as the bo still owns it */
327 old_copy.mm_node = NULL;
|
325 goto out1;
| 328 goto out1;
|
| 329 }
|
326 }
327
328 add = 0;
329 dir = 1;
330
331 if ((old_mem->mem_type == new_mem->mem_type) &&
332 (new_mem->start < old_mem->start + old_mem->size)) {
333 dir = -1;
334 add = new_mem->num_pages - 1;
335 }
336
337 for (i = 0; i < new_mem->num_pages; ++i) {
338 page = i * dir + add;
339 if (old_iomap == NULL) {
340 vm_memattr_t prot = ttm_io_prot(old_mem->placement);
341 ret = ttm_copy_ttm_io_page(ttm, new_iomap, page,
342 prot);
343 } else if (new_iomap == NULL) {
344 vm_memattr_t prot = ttm_io_prot(new_mem->placement);
345 ret = ttm_copy_io_ttm_page(ttm, old_iomap, page,
346 prot);
347 } else
348 ret = ttm_copy_io_page(new_iomap, old_iomap, page);
| 330 }
331
332 add = 0;
333 dir = 1;
334
335 if ((old_mem->mem_type == new_mem->mem_type) &&
336 (new_mem->start < old_mem->start + old_mem->size)) {
337 dir = -1;
338 add = new_mem->num_pages - 1;
339 }
340
341 for (i = 0; i < new_mem->num_pages; ++i) {
342 page = i * dir + add;
343 if (old_iomap == NULL) {
344 vm_memattr_t prot = ttm_io_prot(old_mem->placement);
345 ret = ttm_copy_ttm_io_page(ttm, new_iomap, page,
346 prot);
347 } else if (new_iomap == NULL) {
348 vm_memattr_t prot = ttm_io_prot(new_mem->placement);
349 ret = ttm_copy_io_ttm_page(ttm, old_iomap, page,
350 prot);
351 } else
352 ret = ttm_copy_io_page(new_iomap, old_iomap, page);
|
349 if (ret)
| 353 if (ret) {
354 /* failing here, means keep old copy as-is */
355 old_copy.mm_node = NULL;
|
350 goto out1;
| 356 goto out1;
|
| 357 }
|
351 }
352 mb();
353out2:
354 old_copy = *old_mem;
355 *old_mem = *new_mem;
356 new_mem->mm_node = NULL;
357
358 if ((man->flags & TTM_MEMTYPE_FLAG_FIXED) && (ttm != NULL)) {
359 ttm_tt_unbind(ttm);
360 ttm_tt_destroy(ttm);
361 bo->ttm = NULL;
362 }
363
364out1:
365 ttm_mem_reg_iounmap(bdev, old_mem, new_iomap);
366out:
367 ttm_mem_reg_iounmap(bdev, &old_copy, old_iomap);
368 ttm_bo_mem_put(bo, &old_copy);
369 return ret;
370}
371
372MALLOC_DEFINE(M_TTM_TRANSF_OBJ, "ttm_transf_obj", "TTM Transfer Objects");
373
374static void ttm_transfered_destroy(struct ttm_buffer_object *bo)
375{
376 free(bo, M_TTM_TRANSF_OBJ);
377}
378
379/**
380 * ttm_buffer_object_transfer
381 *
382 * @bo: A pointer to a struct ttm_buffer_object.
383 * @new_obj: A pointer to a pointer to a newly created ttm_buffer_object,
384 * holding the data of @bo with the old placement.
385 *
386 * This is a utility function that may be called after an accelerated move
387 * has been scheduled. A new buffer object is created as a placeholder for
388 * the old data while it's being copied. When that buffer object is idle,
389 * it can be destroyed, releasing the space of the old placement.
390 * Returns:
391 * !0: Failure.
392 */
393
394static int
395ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
396 void *sync_obj, struct ttm_buffer_object **new_obj)
397{
398 struct ttm_buffer_object *fbo;
399
400 fbo = malloc(sizeof(*fbo), M_TTM_TRANSF_OBJ, M_ZERO | M_WAITOK);
401 *fbo = *bo;
402
403 /**
404 * Fix up members that we shouldn't copy directly:
405 * TODO: Explicit member copy would probably be better here.
406 */
407
408 INIT_LIST_HEAD(&fbo->ddestroy);
409 INIT_LIST_HEAD(&fbo->lru);
410 INIT_LIST_HEAD(&fbo->swap);
411 INIT_LIST_HEAD(&fbo->io_reserve_lru);
412 fbo->vm_node = NULL;
413 atomic_set(&fbo->cpu_writers, 0);
414
415 fbo->sync_obj = sync_obj;
416 refcount_init(&fbo->list_kref, 1);
417 refcount_init(&fbo->kref, 1);
418 fbo->destroy = &ttm_transfered_destroy;
419 fbo->acc_size = 0;
420
421 *new_obj = fbo;
422 return 0;
423}
424
425vm_memattr_t
426ttm_io_prot(uint32_t caching_flags)
427{
428#if defined(__i386__) || defined(__amd64__)
429 if (caching_flags & TTM_PL_FLAG_WC)
430 return (VM_MEMATTR_WRITE_COMBINING);
431 else
432 /*
433 * We do not support i386, look at the linux source
434 * for the reason of the comment.
435 */
436 return (VM_MEMATTR_UNCACHEABLE);
437#else
438#error Port me
439#endif
440}
441
442static int ttm_bo_ioremap(struct ttm_buffer_object *bo,
443 unsigned long offset,
444 unsigned long size,
445 struct ttm_bo_kmap_obj *map)
446{
447 struct ttm_mem_reg *mem = &bo->mem;
448
449 if (bo->mem.bus.addr) {
450 map->bo_kmap_type = ttm_bo_map_premapped;
451 map->virtual = (void *)(((u8 *)bo->mem.bus.addr) + offset);
452 } else {
453 map->bo_kmap_type = ttm_bo_map_iomap;
454 map->virtual = pmap_mapdev_attr(bo->mem.bus.base +
455 bo->mem.bus.offset + offset, size,
456 (mem->placement & TTM_PL_FLAG_WC) ?
457 VM_MEMATTR_WRITE_COMBINING : VM_MEMATTR_UNCACHEABLE);
458 map->size = size;
459 }
460 return (!map->virtual) ? -ENOMEM : 0;
461}
462
463static int ttm_bo_kmap_ttm(struct ttm_buffer_object *bo,
464 unsigned long start_page,
465 unsigned long num_pages,
466 struct ttm_bo_kmap_obj *map)
467{
468 struct ttm_mem_reg *mem = &bo->mem;
469 vm_memattr_t prot;
470 struct ttm_tt *ttm = bo->ttm;
471 int i, ret;
472
473 MPASS(ttm != NULL);
474
475 if (ttm->state == tt_unpopulated) {
476 ret = ttm->bdev->driver->ttm_tt_populate(ttm);
477 if (ret)
478 return ret;
479 }
480
481 if (num_pages == 1 && (mem->placement & TTM_PL_FLAG_CACHED)) {
482 /*
483 * We're mapping a single page, and the desired
484 * page protection is consistent with the bo.
485 */
486
487 map->bo_kmap_type = ttm_bo_map_kmap;
488 map->page = ttm->pages[start_page];
489 map->sf = sf_buf_alloc(map->page, 0);
490 map->virtual = (void *)sf_buf_kva(map->sf);
491 } else {
492 /*
493 * We need to use vmap to get the desired page protection
494 * or to make the buffer object look contiguous.
495 */
496 prot = (mem->placement & TTM_PL_FLAG_CACHED) ?
497 VM_MEMATTR_WRITE_COMBINING :
498 ttm_io_prot(mem->placement);
499 map->bo_kmap_type = ttm_bo_map_vmap;
500 map->num_pages = num_pages;
501 map->virtual = (void *)kva_alloc(num_pages * PAGE_SIZE);
502 if (map->virtual != NULL) {
503 for (i = 0; i < num_pages; i++) {
504 /* XXXKIB hack */
505 pmap_page_set_memattr(ttm->pages[start_page +
506 i], prot);
507 }
508 pmap_qenter((vm_offset_t)map->virtual,
509 &ttm->pages[start_page], num_pages);
510 }
511 }
512 return (!map->virtual) ? -ENOMEM : 0;
513}
514
515int ttm_bo_kmap(struct ttm_buffer_object *bo,
516 unsigned long start_page, unsigned long num_pages,
517 struct ttm_bo_kmap_obj *map)
518{
519 struct ttm_mem_type_manager *man =
520 &bo->bdev->man[bo->mem.mem_type];
521 unsigned long offset, size;
522 int ret;
523
524 MPASS(list_empty(&bo->swap));
525 map->virtual = NULL;
526 map->bo = bo;
527 if (num_pages > bo->num_pages)
528 return -EINVAL;
529 if (start_page > bo->num_pages)
530 return -EINVAL;
531#if 0
532 if (num_pages > 1 && !DRM_SUSER(DRM_CURPROC))
533 return -EPERM;
534#endif
535 (void) ttm_mem_io_lock(man, false);
536 ret = ttm_mem_io_reserve(bo->bdev, &bo->mem);
537 ttm_mem_io_unlock(man);
538 if (ret)
539 return ret;
540 if (!bo->mem.bus.is_iomem) {
541 return ttm_bo_kmap_ttm(bo, start_page, num_pages, map);
542 } else {
543 offset = start_page << PAGE_SHIFT;
544 size = num_pages << PAGE_SHIFT;
545 return ttm_bo_ioremap(bo, offset, size, map);
546 }
547}
548
549void ttm_bo_kunmap(struct ttm_bo_kmap_obj *map)
550{
551 struct ttm_buffer_object *bo = map->bo;
552 struct ttm_mem_type_manager *man =
553 &bo->bdev->man[bo->mem.mem_type];
554
555 if (!map->virtual)
556 return;
557 switch (map->bo_kmap_type) {
558 case ttm_bo_map_iomap:
559 pmap_unmapdev((vm_offset_t)map->virtual, map->size);
560 break;
561 case ttm_bo_map_vmap:
562 pmap_qremove((vm_offset_t)(map->virtual), map->num_pages);
563 kva_free((vm_offset_t)map->virtual,
564 map->num_pages * PAGE_SIZE);
565 break;
566 case ttm_bo_map_kmap:
567 sf_buf_free(map->sf);
568 break;
569 case ttm_bo_map_premapped:
570 break;
571 default:
572 MPASS(0);
573 }
574 (void) ttm_mem_io_lock(man, false);
575 ttm_mem_io_free(map->bo->bdev, &map->bo->mem);
576 ttm_mem_io_unlock(man);
577 map->virtual = NULL;
578 map->page = NULL;
579 map->sf = NULL;
580}
581
582int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
583 void *sync_obj,
584 bool evict,
585 bool no_wait_gpu,
586 struct ttm_mem_reg *new_mem)
587{
588 struct ttm_bo_device *bdev = bo->bdev;
589 struct ttm_bo_driver *driver = bdev->driver;
590 struct ttm_mem_type_manager *man = &bdev->man[new_mem->mem_type];
591 struct ttm_mem_reg *old_mem = &bo->mem;
592 int ret;
593 struct ttm_buffer_object *ghost_obj;
594 void *tmp_obj = NULL;
595 void *sync_obj_ref;
596
597 mtx_lock(&bdev->fence_lock);
598 if (bo->sync_obj) {
599 tmp_obj = bo->sync_obj;
600 bo->sync_obj = NULL;
601 }
602 bo->sync_obj = driver->sync_obj_ref(sync_obj);
603 if (evict) {
604 ret = ttm_bo_wait(bo, false, false, false);
605 mtx_unlock(&bdev->fence_lock);
606 if (tmp_obj)
607 driver->sync_obj_unref(&tmp_obj);
608 if (ret)
609 return ret;
610
611 if ((man->flags & TTM_MEMTYPE_FLAG_FIXED) &&
612 (bo->ttm != NULL)) {
613 ttm_tt_unbind(bo->ttm);
614 ttm_tt_destroy(bo->ttm);
615 bo->ttm = NULL;
616 }
617 ttm_bo_free_old_node(bo);
618 } else {
619 /**
620 * This should help pipeline ordinary buffer moves.
621 *
622 * Hang old buffer memory on a new buffer object,
623 * and leave it to be released when the GPU
624 * operation has completed.
625 */
626
627 set_bit(TTM_BO_PRIV_FLAG_MOVING, &bo->priv_flags);
628
629 sync_obj_ref = bo->bdev->driver->sync_obj_ref(bo->sync_obj);
630 mtx_unlock(&bdev->fence_lock);
631 /* ttm_buffer_object_transfer accesses bo->sync_obj */
632 ret = ttm_buffer_object_transfer(bo, sync_obj_ref, &ghost_obj);
633 if (tmp_obj)
634 driver->sync_obj_unref(&tmp_obj);
635
636 if (ret)
637 return ret;
638
639 /**
640 * If we're not moving to fixed memory, the TTM object
641 * needs to stay alive. Otherwhise hang it on the ghost
642 * bo to be unbound and destroyed.
643 */
644
645 if (!(man->flags & TTM_MEMTYPE_FLAG_FIXED))
646 ghost_obj->ttm = NULL;
647 else
648 bo->ttm = NULL;
649
650 ttm_bo_unreserve(ghost_obj);
651 ttm_bo_unref(&ghost_obj);
652 }
653
654 *old_mem = *new_mem;
655 new_mem->mm_node = NULL;
656
657 return 0;
658}
| 358 }
359 mb();
360out2:
361 old_copy = *old_mem;
362 *old_mem = *new_mem;
363 new_mem->mm_node = NULL;
364
365 if ((man->flags & TTM_MEMTYPE_FLAG_FIXED) && (ttm != NULL)) {
366 ttm_tt_unbind(ttm);
367 ttm_tt_destroy(ttm);
368 bo->ttm = NULL;
369 }
370
371out1:
372 ttm_mem_reg_iounmap(bdev, old_mem, new_iomap);
373out:
374 ttm_mem_reg_iounmap(bdev, &old_copy, old_iomap);
375 ttm_bo_mem_put(bo, &old_copy);
376 return ret;
377}
378
379MALLOC_DEFINE(M_TTM_TRANSF_OBJ, "ttm_transf_obj", "TTM Transfer Objects");
380
381static void ttm_transfered_destroy(struct ttm_buffer_object *bo)
382{
383 free(bo, M_TTM_TRANSF_OBJ);
384}
385
386/**
387 * ttm_buffer_object_transfer
388 *
389 * @bo: A pointer to a struct ttm_buffer_object.
390 * @new_obj: A pointer to a pointer to a newly created ttm_buffer_object,
391 * holding the data of @bo with the old placement.
392 *
393 * This is a utility function that may be called after an accelerated move
394 * has been scheduled. A new buffer object is created as a placeholder for
395 * the old data while it's being copied. When that buffer object is idle,
396 * it can be destroyed, releasing the space of the old placement.
397 * Returns:
398 * !0: Failure.
399 */
400
401static int
402ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
403 void *sync_obj, struct ttm_buffer_object **new_obj)
404{
405 struct ttm_buffer_object *fbo;
406
407 fbo = malloc(sizeof(*fbo), M_TTM_TRANSF_OBJ, M_ZERO | M_WAITOK);
408 *fbo = *bo;
409
410 /**
411 * Fix up members that we shouldn't copy directly:
412 * TODO: Explicit member copy would probably be better here.
413 */
414
415 INIT_LIST_HEAD(&fbo->ddestroy);
416 INIT_LIST_HEAD(&fbo->lru);
417 INIT_LIST_HEAD(&fbo->swap);
418 INIT_LIST_HEAD(&fbo->io_reserve_lru);
419 fbo->vm_node = NULL;
420 atomic_set(&fbo->cpu_writers, 0);
421
422 fbo->sync_obj = sync_obj;
423 refcount_init(&fbo->list_kref, 1);
424 refcount_init(&fbo->kref, 1);
425 fbo->destroy = &ttm_transfered_destroy;
426 fbo->acc_size = 0;
427
428 *new_obj = fbo;
429 return 0;
430}
431
432vm_memattr_t
433ttm_io_prot(uint32_t caching_flags)
434{
435#if defined(__i386__) || defined(__amd64__)
436 if (caching_flags & TTM_PL_FLAG_WC)
437 return (VM_MEMATTR_WRITE_COMBINING);
438 else
439 /*
440 * We do not support i386, look at the linux source
441 * for the reason of the comment.
442 */
443 return (VM_MEMATTR_UNCACHEABLE);
444#else
445#error Port me
446#endif
447}
448
449static int ttm_bo_ioremap(struct ttm_buffer_object *bo,
450 unsigned long offset,
451 unsigned long size,
452 struct ttm_bo_kmap_obj *map)
453{
454 struct ttm_mem_reg *mem = &bo->mem;
455
456 if (bo->mem.bus.addr) {
457 map->bo_kmap_type = ttm_bo_map_premapped;
458 map->virtual = (void *)(((u8 *)bo->mem.bus.addr) + offset);
459 } else {
460 map->bo_kmap_type = ttm_bo_map_iomap;
461 map->virtual = pmap_mapdev_attr(bo->mem.bus.base +
462 bo->mem.bus.offset + offset, size,
463 (mem->placement & TTM_PL_FLAG_WC) ?
464 VM_MEMATTR_WRITE_COMBINING : VM_MEMATTR_UNCACHEABLE);
465 map->size = size;
466 }
467 return (!map->virtual) ? -ENOMEM : 0;
468}
469
470static int ttm_bo_kmap_ttm(struct ttm_buffer_object *bo,
471 unsigned long start_page,
472 unsigned long num_pages,
473 struct ttm_bo_kmap_obj *map)
474{
475 struct ttm_mem_reg *mem = &bo->mem;
476 vm_memattr_t prot;
477 struct ttm_tt *ttm = bo->ttm;
478 int i, ret;
479
480 MPASS(ttm != NULL);
481
482 if (ttm->state == tt_unpopulated) {
483 ret = ttm->bdev->driver->ttm_tt_populate(ttm);
484 if (ret)
485 return ret;
486 }
487
488 if (num_pages == 1 && (mem->placement & TTM_PL_FLAG_CACHED)) {
489 /*
490 * We're mapping a single page, and the desired
491 * page protection is consistent with the bo.
492 */
493
494 map->bo_kmap_type = ttm_bo_map_kmap;
495 map->page = ttm->pages[start_page];
496 map->sf = sf_buf_alloc(map->page, 0);
497 map->virtual = (void *)sf_buf_kva(map->sf);
498 } else {
499 /*
500 * We need to use vmap to get the desired page protection
501 * or to make the buffer object look contiguous.
502 */
503 prot = (mem->placement & TTM_PL_FLAG_CACHED) ?
504 VM_MEMATTR_WRITE_COMBINING :
505 ttm_io_prot(mem->placement);
506 map->bo_kmap_type = ttm_bo_map_vmap;
507 map->num_pages = num_pages;
508 map->virtual = (void *)kva_alloc(num_pages * PAGE_SIZE);
509 if (map->virtual != NULL) {
510 for (i = 0; i < num_pages; i++) {
511 /* XXXKIB hack */
512 pmap_page_set_memattr(ttm->pages[start_page +
513 i], prot);
514 }
515 pmap_qenter((vm_offset_t)map->virtual,
516 &ttm->pages[start_page], num_pages);
517 }
518 }
519 return (!map->virtual) ? -ENOMEM : 0;
520}
521
522int ttm_bo_kmap(struct ttm_buffer_object *bo,
523 unsigned long start_page, unsigned long num_pages,
524 struct ttm_bo_kmap_obj *map)
525{
526 struct ttm_mem_type_manager *man =
527 &bo->bdev->man[bo->mem.mem_type];
528 unsigned long offset, size;
529 int ret;
530
531 MPASS(list_empty(&bo->swap));
532 map->virtual = NULL;
533 map->bo = bo;
534 if (num_pages > bo->num_pages)
535 return -EINVAL;
536 if (start_page > bo->num_pages)
537 return -EINVAL;
538#if 0
539 if (num_pages > 1 && !DRM_SUSER(DRM_CURPROC))
540 return -EPERM;
541#endif
542 (void) ttm_mem_io_lock(man, false);
543 ret = ttm_mem_io_reserve(bo->bdev, &bo->mem);
544 ttm_mem_io_unlock(man);
545 if (ret)
546 return ret;
547 if (!bo->mem.bus.is_iomem) {
548 return ttm_bo_kmap_ttm(bo, start_page, num_pages, map);
549 } else {
550 offset = start_page << PAGE_SHIFT;
551 size = num_pages << PAGE_SHIFT;
552 return ttm_bo_ioremap(bo, offset, size, map);
553 }
554}
555
556void ttm_bo_kunmap(struct ttm_bo_kmap_obj *map)
557{
558 struct ttm_buffer_object *bo = map->bo;
559 struct ttm_mem_type_manager *man =
560 &bo->bdev->man[bo->mem.mem_type];
561
562 if (!map->virtual)
563 return;
564 switch (map->bo_kmap_type) {
565 case ttm_bo_map_iomap:
566 pmap_unmapdev((vm_offset_t)map->virtual, map->size);
567 break;
568 case ttm_bo_map_vmap:
569 pmap_qremove((vm_offset_t)(map->virtual), map->num_pages);
570 kva_free((vm_offset_t)map->virtual,
571 map->num_pages * PAGE_SIZE);
572 break;
573 case ttm_bo_map_kmap:
574 sf_buf_free(map->sf);
575 break;
576 case ttm_bo_map_premapped:
577 break;
578 default:
579 MPASS(0);
580 }
581 (void) ttm_mem_io_lock(man, false);
582 ttm_mem_io_free(map->bo->bdev, &map->bo->mem);
583 ttm_mem_io_unlock(man);
584 map->virtual = NULL;
585 map->page = NULL;
586 map->sf = NULL;
587}
588
589int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
590 void *sync_obj,
591 bool evict,
592 bool no_wait_gpu,
593 struct ttm_mem_reg *new_mem)
594{
595 struct ttm_bo_device *bdev = bo->bdev;
596 struct ttm_bo_driver *driver = bdev->driver;
597 struct ttm_mem_type_manager *man = &bdev->man[new_mem->mem_type];
598 struct ttm_mem_reg *old_mem = &bo->mem;
599 int ret;
600 struct ttm_buffer_object *ghost_obj;
601 void *tmp_obj = NULL;
602 void *sync_obj_ref;
603
604 mtx_lock(&bdev->fence_lock);
605 if (bo->sync_obj) {
606 tmp_obj = bo->sync_obj;
607 bo->sync_obj = NULL;
608 }
609 bo->sync_obj = driver->sync_obj_ref(sync_obj);
610 if (evict) {
611 ret = ttm_bo_wait(bo, false, false, false);
612 mtx_unlock(&bdev->fence_lock);
613 if (tmp_obj)
614 driver->sync_obj_unref(&tmp_obj);
615 if (ret)
616 return ret;
617
618 if ((man->flags & TTM_MEMTYPE_FLAG_FIXED) &&
619 (bo->ttm != NULL)) {
620 ttm_tt_unbind(bo->ttm);
621 ttm_tt_destroy(bo->ttm);
622 bo->ttm = NULL;
623 }
624 ttm_bo_free_old_node(bo);
625 } else {
626 /**
627 * This should help pipeline ordinary buffer moves.
628 *
629 * Hang old buffer memory on a new buffer object,
630 * and leave it to be released when the GPU
631 * operation has completed.
632 */
633
634 set_bit(TTM_BO_PRIV_FLAG_MOVING, &bo->priv_flags);
635
636 sync_obj_ref = bo->bdev->driver->sync_obj_ref(bo->sync_obj);
637 mtx_unlock(&bdev->fence_lock);
638 /* ttm_buffer_object_transfer accesses bo->sync_obj */
639 ret = ttm_buffer_object_transfer(bo, sync_obj_ref, &ghost_obj);
640 if (tmp_obj)
641 driver->sync_obj_unref(&tmp_obj);
642
643 if (ret)
644 return ret;
645
646 /**
647 * If we're not moving to fixed memory, the TTM object
648 * needs to stay alive. Otherwhise hang it on the ghost
649 * bo to be unbound and destroyed.
650 */
651
652 if (!(man->flags & TTM_MEMTYPE_FLAG_FIXED))
653 ghost_obj->ttm = NULL;
654 else
655 bo->ttm = NULL;
656
657 ttm_bo_unreserve(ghost_obj);
658 ttm_bo_unref(&ghost_obj);
659 }
660
661 *old_mem = *new_mem;
662 new_mem->mm_node = NULL;
663
664 return 0;
665}
|