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
  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                                     struct dma_resv *resv)
  39 {
  40         unsigned long start_jiffies;
  41         unsigned long end_jiffies;
  42         struct radeon_fence *fence = NULL;
  43         int i, r;
  44
  45         start_jiffies = jiffies;
  46         for (i = 0; i < n; i++) {
  47                 switch (flag) {
  48                 case RADEON_BENCHMARK_COPY_DMA:
  49                         fence = radeon_copy_dma(rdev, saddr, daddr,
  50                                                 size / RADEON_GPU_PAGE_SIZE,
  51                                                 resv);
  52                         break;
  53                 case RADEON_BENCHMARK_COPY_BLIT:
  54                         fence = radeon_copy_blit(rdev, saddr, daddr,
  55                                                  size / RADEON_GPU_PAGE_SIZE,
  56                                                  resv);
  57                         break;
  58                 default:
  59                         DRM_ERROR("Unknown copy method\n");
  60                         return -EINVAL;
  61                 }
  62                 if (IS_ERR(fence))
  63                         return PTR_ERR(fence);
  64
  65                 r = radeon_fence_wait(fence, false);
  66                 radeon_fence_unref(&fence);
  67                 if (r)
  68                         return r;
  69         }
  70         end_jiffies = jiffies;
  71         return jiffies_to_msecs(end_jiffies - start_jiffies);
  72 }
  73
  74
  75 static void radeon_benchmark_log_results(int n, unsigned size,
  76                                          unsigned int time,
  77                                          unsigned sdomain, unsigned ddomain,
  78                                          char *kind)
  79 {
  80         unsigned int throughput = (n * (size >> 10)) / time;
  81         DRM_INFO("radeon: %s %u bo moves of %u kB from"
  82                  " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
  83                  kind, n, size >> 10, sdomain, ddomain, time,
  84                  throughput * 8, throughput);
  85 }
  86
  87 static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size,
  88                                   unsigned sdomain, unsigned ddomain)
  89 {
  90         struct radeon_bo *dobj = NULL;
  91         struct radeon_bo *sobj = NULL;
  92         uint64_t saddr, daddr;
  93         int r, n;
  94         int time;
  95
  96         n = RADEON_BENCHMARK_ITERATIONS;
  97         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, 0, NULL, NULL, &sobj);
  98         if (r) {
  99                 goto out_cleanup;
 100         }
 101         r = radeon_bo_reserve(sobj, false);
 102         if (unlikely(r != 0))
 103                 goto out_cleanup;
 104         r = radeon_bo_pin(sobj, sdomain, &saddr);
 105         radeon_bo_unreserve(sobj);
 106         if (r) {
 107                 goto out_cleanup;
 108         }
 109         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, 0, NULL, NULL, &dobj);
 110         if (r) {
 111                 goto out_cleanup;
 112         }
 113         r = radeon_bo_reserve(dobj, false);
 114         if (unlikely(r != 0))
 115                 goto out_cleanup;
 116         r = radeon_bo_pin(dobj, ddomain, &daddr);
 117         radeon_bo_unreserve(dobj);
 118         if (r) {
 119                 goto out_cleanup;
 120         }
 121
 122         if (rdev->asic->copy.dma) {
 123                 time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
 124                                                 RADEON_BENCHMARK_COPY_DMA, n,
 125                                                 dobj->tbo.base.resv);
 126                 if (time < 0)
 127                         goto out_cleanup;
 128                 if (time > 0)
 129                         radeon_benchmark_log_results(n, size, time,
 130                                                      sdomain, ddomain, "dma");
 131         }
 132
 133         if (rdev->asic->copy.blit) {
 134                 time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
 135                                                 RADEON_BENCHMARK_COPY_BLIT, n,
 136                                                 dobj->tbo.base.resv);
 137                 if (time < 0)
 138                         goto out_cleanup;
 139                 if (time > 0)
 140                         radeon_benchmark_log_results(n, size, time,
 141                                                      sdomain, ddomain, "blit");
 142         }
 143
 144 out_cleanup:
 145         if (sobj) {
 146                 r = radeon_bo_reserve(sobj, false);
 147                 if (likely(r == 0)) {
 148                         radeon_bo_unpin(sobj);
 149                         radeon_bo_unreserve(sobj);
 150                 }
 151                 radeon_bo_unref(&sobj);
 152         }
 153         if (dobj) {
 154                 r = radeon_bo_reserve(dobj, false);
 155                 if (likely(r == 0)) {
 156                         radeon_bo_unpin(dobj);
 157                         radeon_bo_unreserve(dobj);
 158                 }
 159                 radeon_bo_unref(&dobj);
 160         }
 161
 162         if (r) {
 163                 DRM_ERROR("Error while benchmarking BO move.\n");
 164         }
 165 }
 166
 167 void radeon_benchmark(struct radeon_device *rdev, int test_number)
 168 {
 169         int i;
 170         int common_modes[RADEON_BENCHMARK_COMMON_MODES_N] = {
 171                 640 * 480 * 4,
 172                 720 * 480 * 4,
 173                 800 * 600 * 4,
 174                 848 * 480 * 4,
 175                 1024 * 768 * 4,
 176                 1152 * 768 * 4,
 177                 1280 * 720 * 4,
 178                 1280 * 800 * 4,
 179                 1280 * 854 * 4,
 180                 1280 * 960 * 4,
 181                 1280 * 1024 * 4,
 182                 1440 * 900 * 4,
 183                 1400 * 1050 * 4,
 184                 1680 * 1050 * 4,
 185                 1600 * 1200 * 4,
 186                 1920 * 1080 * 4,
 187                 1920 * 1200 * 4
 188         };
 189
 190         switch (test_number) {
 191         case 1:
 192                 /* simple test, VRAM to GTT and GTT to VRAM */
 193                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
 194                                       RADEON_GEM_DOMAIN_VRAM);
 195                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
 196                                       RADEON_GEM_DOMAIN_GTT);
 197                 break;
 198         case 2:
 199                 /* simple test, VRAM to VRAM */
 200                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
 201                                       RADEON_GEM_DOMAIN_VRAM);
 202                 break;
 203         case 3:
 204                 /* GTT to VRAM, buffer size sweep, powers of 2 */
 205                 for (i = 1; i <= 16384; i <<= 1)
 206                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
 207                                               RADEON_GEM_DOMAIN_GTT,
 208                                               RADEON_GEM_DOMAIN_VRAM);
 209                 break;
 210         case 4:
 211                 /* VRAM to GTT, buffer size sweep, powers of 2 */
 212                 for (i = 1; i <= 16384; i <<= 1)
 213                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
 214                                               RADEON_GEM_DOMAIN_VRAM,
 215                                               RADEON_GEM_DOMAIN_GTT);
 216                 break;
 217         case 5:
 218                 /* VRAM to VRAM, buffer size sweep, powers of 2 */
 219                 for (i = 1; i <= 16384; i <<= 1)
 220                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
 221                                               RADEON_GEM_DOMAIN_VRAM,
 222                                               RADEON_GEM_DOMAIN_VRAM);
 223                 break;
 224         case 6:
 225                 /* GTT to VRAM, buffer size sweep, common modes */
 226                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 227                         radeon_benchmark_move(rdev, common_modes[i],
 228                                               RADEON_GEM_DOMAIN_GTT,
 229                                               RADEON_GEM_DOMAIN_VRAM);
 230                 break;
 231         case 7:
 232                 /* VRAM to GTT, buffer size sweep, common modes */
 233                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 234                         radeon_benchmark_move(rdev, common_modes[i],
 235                                               RADEON_GEM_DOMAIN_VRAM,
 236                                               RADEON_GEM_DOMAIN_GTT);
 237                 break;
 238         case 8:
 239                 /* VRAM to VRAM, buffer size sweep, common modes */
 240                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 241                         radeon_benchmark_move(rdev, common_modes[i],
 242                                               RADEON_GEM_DOMAIN_VRAM,
 243                                               RADEON_GEM_DOMAIN_VRAM);
 244                 break;
 245
 246         default:
 247                 DRM_ERROR("Unknown benchmark\n");
 248         }
 249 }