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                 r = radeon_fence_create(rdev, &fence);
  47                 if (r)
  48                         return r;
  49
  50                 switch (flag) {
  51                 case RADEON_BENCHMARK_COPY_DMA:
  52                         r = radeon_copy_dma(rdev, saddr, daddr,
  53                                             size / RADEON_GPU_PAGE_SIZE,
  54                                             fence);
  55                         break;
  56                 case RADEON_BENCHMARK_COPY_BLIT:
  57                         r = radeon_copy_blit(rdev, saddr, daddr,
  58                                              size / RADEON_GPU_PAGE_SIZE,
  59                                              fence);
  60                         break;
  61                 default:
  62                         DRM_ERROR("Unknown copy method\n");
  63                         r = -EINVAL;
  64                 }
  65                 if (r)
  66                         goto exit_do_move;
  67                 r = radeon_fence_wait(fence, false);
  68                 if (r)
  69                         goto exit_do_move;
  70                 radeon_fence_unref(&fence);
  71         }
  72         end_jiffies = jiffies;
  73         r = jiffies_to_msecs(end_jiffies - start_jiffies);
  74
  75 exit_do_move:
  76         if (fence)
  77                 radeon_fence_unref(&fence);
  78         return r;
  79 }
  80
  81
  82 static void radeon_benchmark_log_results(int n, unsigned size,
  83                                          unsigned int time,
  84                                          unsigned sdomain, unsigned ddomain,
  85                                          char *kind)
  86 {
  87         unsigned int throughput = (n * (size >> 10)) / time;
  88         DRM_INFO("radeon: %s %u bo moves of %u kB from"
  89                  " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
  90                  kind, n, size >> 10, sdomain, ddomain, time,
  91                  throughput * 8, throughput);
  92 }
  93
  94 static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size,
  95                                   unsigned sdomain, unsigned ddomain)
  96 {
  97         struct radeon_bo *dobj = NULL;
  98         struct radeon_bo *sobj = NULL;
  99         uint64_t saddr, daddr;
 100         int r, n;
 101         int time;
 102
 103         n = RADEON_BENCHMARK_ITERATIONS;
 104         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, &sobj);
 105         if (r) {
 106                 goto out_cleanup;
 107         }
 108         r = radeon_bo_reserve(sobj, false);
 109         if (unlikely(r != 0))
 110                 goto out_cleanup;
 111         r = radeon_bo_pin(sobj, sdomain, &saddr);
 112         radeon_bo_unreserve(sobj);
 113         if (r) {
 114                 goto out_cleanup;
 115         }
 116         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, &dobj);
 117         if (r) {
 118                 goto out_cleanup;
 119         }
 120         r = radeon_bo_reserve(dobj, false);
 121         if (unlikely(r != 0))
 122                 goto out_cleanup;
 123         r = radeon_bo_pin(dobj, ddomain, &daddr);
 124         radeon_bo_unreserve(dobj);
 125         if (r) {
 126                 goto out_cleanup;
 127         }
 128
 129         /* r100 doesn't have dma engine so skip the test */
 130         /* also, VRAM-to-VRAM test doesn't make much sense for DMA */
 131         /* skip it as well if domains are the same */
 132         if ((rdev->asic->copy_dma) && (sdomain != ddomain)) {
 133                 time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
 134                                                 RADEON_BENCHMARK_COPY_DMA, n);
 135                 if (time < 0)
 136                         goto out_cleanup;
 137                 if (time > 0)
 138                         radeon_benchmark_log_results(n, size, time,
 139                                                      sdomain, ddomain, "dma");
 140         }
 141
 142         time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
 143                                         RADEON_BENCHMARK_COPY_BLIT, n);
 144         if (time < 0)
 145                 goto out_cleanup;
 146         if (time > 0)
 147                 radeon_benchmark_log_results(n, size, time,
 148                                              sdomain, ddomain, "blit");
 149
 150 out_cleanup:
 151         if (sobj) {
 152                 r = radeon_bo_reserve(sobj, false);
 153                 if (likely(r == 0)) {
 154                         radeon_bo_unpin(sobj);
 155                         radeon_bo_unreserve(sobj);
 156                 }
 157                 radeon_bo_unref(&sobj);
 158         }
 159         if (dobj) {
 160                 r = radeon_bo_reserve(dobj, false);
 161                 if (likely(r == 0)) {
 162                         radeon_bo_unpin(dobj);
 163                         radeon_bo_unreserve(dobj);
 164                 }
 165                 radeon_bo_unref(&dobj);
 166         }
 167
 168         if (r) {
 169                 DRM_ERROR("Error while benchmarking BO move.\n");
 170         }
 171 }
 172
 173 void radeon_benchmark(struct radeon_device *rdev, int test_number)
 174 {
 175         int i;
 176         int common_modes[RADEON_BENCHMARK_COMMON_MODES_N] = {
 177                 640 * 480 * 4,
 178                 720 * 480 * 4,
 179                 800 * 600 * 4,
 180                 848 * 480 * 4,
 181                 1024 * 768 * 4,
 182                 1152 * 768 * 4,
 183                 1280 * 720 * 4,
 184                 1280 * 800 * 4,
 185                 1280 * 854 * 4,
 186                 1280 * 960 * 4,
 187                 1280 * 1024 * 4,
 188                 1440 * 900 * 4,
 189                 1400 * 1050 * 4,
 190                 1680 * 1050 * 4,
 191                 1600 * 1200 * 4,
 192                 1920 * 1080 * 4,
 193                 1920 * 1200 * 4
 194         };
 195
 196         switch (test_number) {
 197         case 1:
 198                 /* simple test, VRAM to GTT and GTT to VRAM */
 199                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
 200                                       RADEON_GEM_DOMAIN_VRAM);
 201                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
 202                                       RADEON_GEM_DOMAIN_GTT);
 203                 break;
 204         case 2:
 205                 /* simple test, VRAM to VRAM */
 206                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
 207                                       RADEON_GEM_DOMAIN_VRAM);
 208                 break;
 209         case 3:
 210                 /* GTT to VRAM, buffer size sweep, powers of 2 */
 211                 for (i = 1; i <= 65536; i <<= 1)
 212                         radeon_benchmark_move(rdev, i*1024,
 213                                               RADEON_GEM_DOMAIN_GTT,
 214                                               RADEON_GEM_DOMAIN_VRAM);
 215                 break;
 216         case 4:
 217                 /* VRAM to GTT, buffer size sweep, powers of 2 */
 218                 for (i = 1; i <= 65536; i <<= 1)
 219                         radeon_benchmark_move(rdev, i*1024,
 220                                               RADEON_GEM_DOMAIN_VRAM,
 221                                               RADEON_GEM_DOMAIN_GTT);
 222                 break;
 223         case 5:
 224                 /* VRAM to VRAM, buffer size sweep, powers of 2 */
 225                 for (i = 1; i <= 65536; i <<= 1)
 226                         radeon_benchmark_move(rdev, i*1024,
 227                                               RADEON_GEM_DOMAIN_VRAM,
 228                                               RADEON_GEM_DOMAIN_VRAM);
 229                 break;
 230         case 6:
 231                 /* GTT to VRAM, buffer size sweep, common modes */
 232                 for (i = 1; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 233                         radeon_benchmark_move(rdev, common_modes[i],
 234                                               RADEON_GEM_DOMAIN_GTT,
 235                                               RADEON_GEM_DOMAIN_VRAM);
 236                 break;
 237         case 7:
 238                 /* VRAM to GTT, buffer size sweep, common modes */
 239                 for (i = 1; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 240                         radeon_benchmark_move(rdev, common_modes[i],
 241                                               RADEON_GEM_DOMAIN_VRAM,
 242                                               RADEON_GEM_DOMAIN_GTT);
 243                 break;
 244         case 8:
 245                 /* VRAM to VRAM, buffer size sweep, common modes */
 246                 for (i = 1; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 247                         radeon_benchmark_move(rdev, common_modes[i],
 248                                               RADEON_GEM_DOMAIN_VRAM,
 249                                               RADEON_GEM_DOMAIN_VRAM);
 250                 break;
 251
 252         default:
 253                 DRM_ERROR("Unknown benchmark\n");
 254         }
 255 }