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