drm/radeon/benchmark: make sure bo blit copy exists before using it
[linux-2.6.git] / drivers / gpu / drm / radeon / radeon_benchmark.c
1 /*
2  * Copyright 2009 Jerome Glisse.
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: Jerome Glisse
23  */
24 #include <drm/drmP.h>
25 #include <drm/radeon_drm.h>
26 #include "radeon_reg.h"
27 #include "radeon.h"
28
29 #define RADEON_BENCHMARK_COPY_BLIT 1
30 #define RADEON_BENCHMARK_COPY_DMA  0
31
32 #define RADEON_BENCHMARK_ITERATIONS 1024
33 #define RADEON_BENCHMARK_COMMON_MODES_N 17
34
35 static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size,
36                                     uint64_t saddr, uint64_t daddr,
37                                     int flag, int n)
38 {
39         unsigned long start_jiffies;
40         unsigned long end_jiffies;
41         struct radeon_fence *fence = NULL;
42         int i, r;
43
44         start_jiffies = jiffies;
45         for (i = 0; i < n; i++) {
46                 switch (flag) {
47                 case RADEON_BENCHMARK_COPY_DMA:
48                         r = radeon_fence_create(rdev, &fence, radeon_copy_dma_ring_index(rdev));
49                         if (r)
50                                 return r;
51                         r = radeon_copy_dma(rdev, saddr, daddr,
52                                             size / RADEON_GPU_PAGE_SIZE,
53                                             fence);
54                         break;
55                 case RADEON_BENCHMARK_COPY_BLIT:
56                         r = radeon_fence_create(rdev, &fence, radeon_copy_blit_ring_index(rdev));
57                         if (r)
58                                 return r;
59                         r = radeon_copy_blit(rdev, saddr, daddr,
60                                              size / RADEON_GPU_PAGE_SIZE,
61                                              fence);
62                         break;
63                 default:
64                         DRM_ERROR("Unknown copy method\n");
65                         r = -EINVAL;
66                 }
67                 if (r)
68                         goto exit_do_move;
69                 r = radeon_fence_wait(fence, false);
70                 if (r)
71                         goto exit_do_move;
72                 radeon_fence_unref(&fence);
73         }
74         end_jiffies = jiffies;
75         r = jiffies_to_msecs(end_jiffies - start_jiffies);
76
77 exit_do_move:
78         if (fence)
79                 radeon_fence_unref(&fence);
80         return r;
81 }
82
83
84 static void radeon_benchmark_log_results(int n, unsigned size,
85                                          unsigned int time,
86                                          unsigned sdomain, unsigned ddomain,
87                                          char *kind)
88 {
89         unsigned int throughput = (n * (size >> 10)) / time;
90         DRM_INFO("radeon: %s %u bo moves of %u kB from"
91                  " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
92                  kind, n, size >> 10, sdomain, ddomain, time,
93                  throughput * 8, throughput);
94 }
95
96 static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size,
97                                   unsigned sdomain, unsigned ddomain)
98 {
99         struct radeon_bo *dobj = NULL;
100         struct radeon_bo *sobj = NULL;
101         uint64_t saddr, daddr;
102         int r, n;
103         int time;
104
105         n = RADEON_BENCHMARK_ITERATIONS;
106         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, &sobj);
107         if (r) {
108                 goto out_cleanup;
109         }
110         r = radeon_bo_reserve(sobj, false);
111         if (unlikely(r != 0))
112                 goto out_cleanup;
113         r = radeon_bo_pin(sobj, sdomain, &saddr);
114         radeon_bo_unreserve(sobj);
115         if (r) {
116                 goto out_cleanup;
117         }
118         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, &dobj);
119         if (r) {
120                 goto out_cleanup;
121         }
122         r = radeon_bo_reserve(dobj, false);
123         if (unlikely(r != 0))
124                 goto out_cleanup;
125         r = radeon_bo_pin(dobj, ddomain, &daddr);
126         radeon_bo_unreserve(dobj);
127         if (r) {
128                 goto out_cleanup;
129         }
130
131         /* r100 doesn't have dma engine so skip the test */
132         /* also, VRAM-to-VRAM test doesn't make much sense for DMA */
133         /* skip it as well if domains are the same */
134         if ((rdev->asic->copy.dma) && (sdomain != ddomain)) {
135                 time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
136                                                 RADEON_BENCHMARK_COPY_DMA, n);
137                 if (time < 0)
138                         goto out_cleanup;
139                 if (time > 0)
140                         radeon_benchmark_log_results(n, size, time,
141                                                      sdomain, ddomain, "dma");
142         }
143
144         if (rdev->asic->copy.blit) {
145                 time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
146                                                 RADEON_BENCHMARK_COPY_BLIT, n);
147                 if (time < 0)
148                         goto out_cleanup;
149                 if (time > 0)
150                         radeon_benchmark_log_results(n, size, time,
151                                                      sdomain, ddomain, "blit");
152         }
153
154 out_cleanup:
155         if (sobj) {
156                 r = radeon_bo_reserve(sobj, false);
157                 if (likely(r == 0)) {
158                         radeon_bo_unpin(sobj);
159                         radeon_bo_unreserve(sobj);
160                 }
161                 radeon_bo_unref(&sobj);
162         }
163         if (dobj) {
164                 r = radeon_bo_reserve(dobj, false);
165                 if (likely(r == 0)) {
166                         radeon_bo_unpin(dobj);
167                         radeon_bo_unreserve(dobj);
168                 }
169                 radeon_bo_unref(&dobj);
170         }
171
172         if (r) {
173                 DRM_ERROR("Error while benchmarking BO move.\n");
174         }
175 }
176
177 void radeon_benchmark(struct radeon_device *rdev, int test_number)
178 {
179         int i;
180         int common_modes[RADEON_BENCHMARK_COMMON_MODES_N] = {
181                 640 * 480 * 4,
182                 720 * 480 * 4,
183                 800 * 600 * 4,
184                 848 * 480 * 4,
185                 1024 * 768 * 4,
186                 1152 * 768 * 4,
187                 1280 * 720 * 4,
188                 1280 * 800 * 4,
189                 1280 * 854 * 4,
190                 1280 * 960 * 4,
191                 1280 * 1024 * 4,
192                 1440 * 900 * 4,
193                 1400 * 1050 * 4,
194                 1680 * 1050 * 4,
195                 1600 * 1200 * 4,
196                 1920 * 1080 * 4,
197                 1920 * 1200 * 4
198         };
199
200         switch (test_number) {
201         case 1:
202                 /* simple test, VRAM to GTT and GTT to VRAM */
203                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
204                                       RADEON_GEM_DOMAIN_VRAM);
205                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
206                                       RADEON_GEM_DOMAIN_GTT);
207                 break;
208         case 2:
209                 /* simple test, VRAM to VRAM */
210                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
211                                       RADEON_GEM_DOMAIN_VRAM);
212                 break;
213         case 3:
214                 /* GTT to VRAM, buffer size sweep, powers of 2 */
215                 for (i = 1; i <= 16384; i <<= 1)
216                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
217                                               RADEON_GEM_DOMAIN_GTT,
218                                               RADEON_GEM_DOMAIN_VRAM);
219                 break;
220         case 4:
221                 /* VRAM to GTT, buffer size sweep, powers of 2 */
222                 for (i = 1; i <= 16384; i <<= 1)
223                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
224                                               RADEON_GEM_DOMAIN_VRAM,
225                                               RADEON_GEM_DOMAIN_GTT);
226                 break;
227         case 5:
228                 /* VRAM to VRAM, buffer size sweep, powers of 2 */
229                 for (i = 1; i <= 16384; i <<= 1)
230                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
231                                               RADEON_GEM_DOMAIN_VRAM,
232                                               RADEON_GEM_DOMAIN_VRAM);
233                 break;
234         case 6:
235                 /* GTT to VRAM, buffer size sweep, common modes */
236                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
237                         radeon_benchmark_move(rdev, common_modes[i],
238                                               RADEON_GEM_DOMAIN_GTT,
239                                               RADEON_GEM_DOMAIN_VRAM);
240                 break;
241         case 7:
242                 /* VRAM to GTT, buffer size sweep, common modes */
243                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
244                         radeon_benchmark_move(rdev, common_modes[i],
245                                               RADEON_GEM_DOMAIN_VRAM,
246                                               RADEON_GEM_DOMAIN_GTT);
247                 break;
248         case 8:
249                 /* VRAM to VRAM, buffer size sweep, common modes */
250                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
251                         radeon_benchmark_move(rdev, common_modes[i],
252                                               RADEON_GEM_DOMAIN_VRAM,
253                                               RADEON_GEM_DOMAIN_VRAM);
254                 break;
255
256         default:
257                 DRM_ERROR("Unknown benchmark\n");
258         }
259 }