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_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 }