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