1 /*
2 * Copyright © 2009 Red Hat Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
14 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
15 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
16 * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
17 * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
24 * of the Software.
25 */
26 /*
27 */
28 #include <assert.h>
29 #include <errno.h>
30 #include <stdlib.h>
31 #include "libdrm_macros.h"
32 #include "radeon_cs.h"
33 #include "radeon_bo_int.h"
34 #include "radeon_cs_int.h"
35
36 struct rad_sizes {
37 int32_t op_read;
38 int32_t op_gart_write;
39 int32_t op_vram_write;
40 };
41
radeon_cs_setup_bo(struct radeon_cs_space_check * sc,struct rad_sizes * sizes)42 static inline int radeon_cs_setup_bo(struct radeon_cs_space_check *sc, struct rad_sizes *sizes)
43 {
44 uint32_t read_domains, write_domain;
45 struct radeon_bo_int *bo;
46
47 bo = sc->bo;
48 sc->new_accounted = 0;
49 read_domains = sc->read_domains;
50 write_domain = sc->write_domain;
51
52 /* legacy needs a static check */
53 if (radeon_bo_is_static((struct radeon_bo *)sc->bo)) {
54 bo->space_accounted = sc->new_accounted = (read_domains << 16) | write_domain;
55 return 0;
56 }
57
58 /* already accounted this bo */
59 if (write_domain && (write_domain == bo->space_accounted)) {
60 sc->new_accounted = bo->space_accounted;
61 return 0;
62 }
63 if (read_domains && ((read_domains << 16) == bo->space_accounted)) {
64 sc->new_accounted = bo->space_accounted;
65 return 0;
66 }
67
68 if (bo->space_accounted == 0) {
69 if (write_domain) {
70 if (write_domain == RADEON_GEM_DOMAIN_VRAM)
71 sizes->op_vram_write += bo->size;
72 else if (write_domain == RADEON_GEM_DOMAIN_GTT)
73 sizes->op_gart_write += bo->size;
74 sc->new_accounted = write_domain;
75 } else {
76 sizes->op_read += bo->size;
77 sc->new_accounted = read_domains << 16;
78 }
79 } else {
80 uint16_t old_read, old_write;
81
82 old_read = bo->space_accounted >> 16;
83 old_write = bo->space_accounted & 0xffff;
84
85 if (write_domain && (old_read & write_domain)) {
86 sc->new_accounted = write_domain;
87 /* moving from read to a write domain */
88 if (write_domain == RADEON_GEM_DOMAIN_VRAM) {
89 sizes->op_read -= bo->size;
90 sizes->op_vram_write += bo->size;
91 } else if (write_domain == RADEON_GEM_DOMAIN_GTT) {
92 sizes->op_read -= bo->size;
93 sizes->op_gart_write += bo->size;
94 }
95 } else if (read_domains & old_write) {
96 sc->new_accounted = bo->space_accounted & 0xffff;
97 } else {
98 /* rewrite the domains */
99 if (write_domain != old_write)
100 fprintf(stderr,"WRITE DOMAIN RELOC FAILURE 0x%x %d %d\n", bo->handle, write_domain, old_write);
101 if (read_domains != old_read)
102 fprintf(stderr,"READ DOMAIN RELOC FAILURE 0x%x %d %d\n", bo->handle, read_domains, old_read);
103 return RADEON_CS_SPACE_FLUSH;
104 }
105 }
106 return 0;
107 }
108
radeon_cs_do_space_check(struct radeon_cs_int * cs,struct radeon_cs_space_check * new_tmp)109 static int radeon_cs_do_space_check(struct radeon_cs_int *cs, struct radeon_cs_space_check *new_tmp)
110 {
111 struct radeon_cs_manager *csm = cs->csm;
112 int i;
113 struct radeon_bo_int *bo;
114 struct rad_sizes sizes;
115 int ret;
116
117 /* check the totals for this operation */
118
119 if (cs->bo_count == 0 && !new_tmp)
120 return 0;
121
122 memset(&sizes, 0, sizeof(struct rad_sizes));
123
124 /* prepare */
125 for (i = 0; i < cs->bo_count; i++) {
126 ret = radeon_cs_setup_bo(&cs->bos[i], &sizes);
127 if (ret)
128 return ret;
129 }
130
131 if (new_tmp) {
132 ret = radeon_cs_setup_bo(new_tmp, &sizes);
133 if (ret)
134 return ret;
135 }
136
137 if (sizes.op_read < 0)
138 sizes.op_read = 0;
139
140 /* check sizes - operation first */
141 if ((sizes.op_read + sizes.op_gart_write > csm->gart_limit) ||
142 (sizes.op_vram_write > csm->vram_limit)) {
143 return RADEON_CS_SPACE_OP_TO_BIG;
144 }
145
146 if (((csm->vram_write_used + sizes.op_vram_write) > csm->vram_limit) ||
147 ((csm->read_used + csm->gart_write_used + sizes.op_gart_write + sizes.op_read) > csm->gart_limit)) {
148 return RADEON_CS_SPACE_FLUSH;
149 }
150
151 csm->gart_write_used += sizes.op_gart_write;
152 csm->vram_write_used += sizes.op_vram_write;
153 csm->read_used += sizes.op_read;
154 /* commit */
155 for (i = 0; i < cs->bo_count; i++) {
156 bo = cs->bos[i].bo;
157 bo->space_accounted = cs->bos[i].new_accounted;
158 }
159 if (new_tmp)
160 new_tmp->bo->space_accounted = new_tmp->new_accounted;
161
162 return RADEON_CS_SPACE_OK;
163 }
164
165 drm_public void
radeon_cs_space_add_persistent_bo(struct radeon_cs * cs,struct radeon_bo * bo,uint32_t read_domains,uint32_t write_domain)166 radeon_cs_space_add_persistent_bo(struct radeon_cs *cs, struct radeon_bo *bo,
167 uint32_t read_domains, uint32_t write_domain)
168 {
169 struct radeon_cs_int *csi = (struct radeon_cs_int *)cs;
170 struct radeon_bo_int *boi = (struct radeon_bo_int *)bo;
171 int i;
172 for (i = 0; i < csi->bo_count; i++) {
173 if (csi->bos[i].bo == boi &&
174 csi->bos[i].read_domains == read_domains &&
175 csi->bos[i].write_domain == write_domain)
176 return;
177 }
178 radeon_bo_ref(bo);
179 i = csi->bo_count;
180 csi->bos[i].bo = boi;
181 csi->bos[i].read_domains = read_domains;
182 csi->bos[i].write_domain = write_domain;
183 csi->bos[i].new_accounted = 0;
184 csi->bo_count++;
185
186 assert(csi->bo_count < MAX_SPACE_BOS);
187 }
188
radeon_cs_check_space_internal(struct radeon_cs_int * cs,struct radeon_cs_space_check * tmp_bo)189 static int radeon_cs_check_space_internal(struct radeon_cs_int *cs,
190 struct radeon_cs_space_check *tmp_bo)
191 {
192 int ret;
193 int flushed = 0;
194
195 again:
196 ret = radeon_cs_do_space_check(cs, tmp_bo);
197 if (ret == RADEON_CS_SPACE_OP_TO_BIG)
198 return -1;
199 if (ret == RADEON_CS_SPACE_FLUSH) {
200 (*cs->space_flush_fn)(cs->space_flush_data);
201 if (flushed)
202 return -1;
203 flushed = 1;
204 goto again;
205 }
206 return 0;
207 }
208
209 drm_public int
radeon_cs_space_check_with_bo(struct radeon_cs * cs,struct radeon_bo * bo,uint32_t read_domains,uint32_t write_domain)210 radeon_cs_space_check_with_bo(struct radeon_cs *cs, struct radeon_bo *bo,
211 uint32_t read_domains, uint32_t write_domain)
212 {
213 struct radeon_cs_int *csi = (struct radeon_cs_int *)cs;
214 struct radeon_bo_int *boi = (struct radeon_bo_int *)bo;
215 struct radeon_cs_space_check temp_bo;
216
217 int ret = 0;
218
219 if (bo) {
220 temp_bo.bo = boi;
221 temp_bo.read_domains = read_domains;
222 temp_bo.write_domain = write_domain;
223 temp_bo.new_accounted = 0;
224 }
225
226 ret = radeon_cs_check_space_internal(csi, bo ? &temp_bo : NULL);
227 return ret;
228 }
229
radeon_cs_space_check(struct radeon_cs * cs)230 drm_public int radeon_cs_space_check(struct radeon_cs *cs)
231 {
232 struct radeon_cs_int *csi = (struct radeon_cs_int *)cs;
233 return radeon_cs_check_space_internal(csi, NULL);
234 }
235
radeon_cs_space_reset_bos(struct radeon_cs * cs)236 drm_public void radeon_cs_space_reset_bos(struct radeon_cs *cs)
237 {
238 struct radeon_cs_int *csi = (struct radeon_cs_int *)cs;
239 int i;
240 for (i = 0; i < csi->bo_count; i++) {
241 radeon_bo_unref((struct radeon_bo *)csi->bos[i].bo);
242 csi->bos[i].bo = NULL;
243 csi->bos[i].read_domains = 0;
244 csi->bos[i].write_domain = 0;
245 csi->bos[i].new_accounted = 0;
246 }
247 csi->bo_count = 0;
248 }
249