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_fence_create(rdev, &fence, radeon_copy_dma_ring_index(rdev));
  49                         if (r)
  50                                 return r;
  51                         r = radeon_copy_dma(rdev, saddr, daddr,
  52                                             size / RADEON_GPU_PAGE_SIZE,
  53                                             fence);
  54                         break;
  55                 case RADEON_BENCHMARK_COPY_BLIT:
  56                         r = radeon_fence_create(rdev, &fence, radeon_copy_blit_ring_index(rdev));
  57                         if (r)
  58                                 return r;
  59                         r = radeon_copy_blit(rdev, saddr, daddr,
  60                                              size / RADEON_GPU_PAGE_SIZE,
  61                                              fence);
  62                         break;
  63                 default:
  64                         DRM_ERROR("Unknown copy method\n");
  65                         r = -EINVAL;
  66                 }
  67                 if (r)
  68                         goto exit_do_move;
  69                 r = radeon_fence_wait(fence, false);
  70                 if (r)
  71                         goto exit_do_move;
  72                 radeon_fence_unref(&fence);
  73         }
  74         end_jiffies = jiffies;
  75         r = jiffies_to_msecs(end_jiffies - start_jiffies);
  76
  77 exit_do_move:
  78         if (fence)
  79                 radeon_fence_unref(&fence);
  80         return r;
  81 }
  82
  83
  84 static void radeon_benchmark_log_results(int n, unsigned size,
  85                                          unsigned int time,
  86                                          unsigned sdomain, unsigned ddomain,
  87                                          char *kind)
  88 {
  89         unsigned int throughput = (n * (size >> 10)) / time;
  90         DRM_INFO("radeon: %s %u bo moves of %u kB from"
  91                  " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
  92                  kind, n, size >> 10, sdomain, ddomain, time,
  93                  throughput * 8, throughput);
  94 }
  95
  96 static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size,
  97                                   unsigned sdomain, unsigned ddomain)
  98 {
  99         struct radeon_bo *dobj = NULL;
 100         struct radeon_bo *sobj = NULL;
 101         uint64_t saddr, daddr;
 102         int r, n;
 103         int time;
 104
 105         n = RADEON_BENCHMARK_ITERATIONS;
 106         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, &sobj);
 107         if (r) {
 108                 goto out_cleanup;
 109         }
 110         r = radeon_bo_reserve(sobj, false);
 111         if (unlikely(r != 0))
 112                 goto out_cleanup;
 113         r = radeon_bo_pin(sobj, sdomain, &saddr);
 114         radeon_bo_unreserve(sobj);
 115         if (r) {
 116                 goto out_cleanup;
 117         }
 118         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, &dobj);
 119         if (r) {
 120                 goto out_cleanup;
 121         }
 122         r = radeon_bo_reserve(dobj, false);
 123         if (unlikely(r != 0))
 124                 goto out_cleanup;
 125         r = radeon_bo_pin(dobj, ddomain, &daddr);
 126         radeon_bo_unreserve(dobj);
 127         if (r) {
 128                 goto out_cleanup;
 129         }
 130
 131         /* r100 doesn't have dma engine so skip the test */
 132         /* also, VRAM-to-VRAM test doesn't make much sense for DMA */
 133         /* skip it as well if domains are the same */
 134         if ((rdev->asic->copy.dma) && (sdomain != ddomain)) {
 135                 time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
 136                                                 RADEON_BENCHMARK_COPY_DMA, n);
 137                 if (time < 0)
 138                         goto out_cleanup;
 139                 if (time > 0)
 140                         radeon_benchmark_log_results(n, size, time,
 141                                                      sdomain, ddomain, "dma");
 142         }
 143
 144         time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
 145                                         RADEON_BENCHMARK_COPY_BLIT, n);
 146         if (time < 0)
 147                 goto out_cleanup;
 148         if (time > 0)
 149                 radeon_benchmark_log_results(n, size, time,
 150                                              sdomain, ddomain, "blit");
 151
 152 out_cleanup:
 153         if (sobj) {
 154                 r = radeon_bo_reserve(sobj, false);
 155                 if (likely(r == 0)) {
 156                         radeon_bo_unpin(sobj);
 157                         radeon_bo_unreserve(sobj);
 158                 }
 159                 radeon_bo_unref(&sobj);
 160         }
 161         if (dobj) {
 162                 r = radeon_bo_reserve(dobj, false);
 163                 if (likely(r == 0)) {
 164                         radeon_bo_unpin(dobj);
 165                         radeon_bo_unreserve(dobj);
 166                 }
 167                 radeon_bo_unref(&dobj);
 168         }
 169
 170         if (r) {
 171                 DRM_ERROR("Error while benchmarking BO move.\n");
 172         }
 173 }
 174
 175 void radeon_benchmark(struct radeon_device *rdev, int test_number)
 176 {
 177         int i;
 178         int common_modes[RADEON_BENCHMARK_COMMON_MODES_N] = {
 179                 640 * 480 * 4,
 180                 720 * 480 * 4,
 181                 800 * 600 * 4,
 182                 848 * 480 * 4,
 183                 1024 * 768 * 4,
 184                 1152 * 768 * 4,
 185                 1280 * 720 * 4,
 186                 1280 * 800 * 4,
 187                 1280 * 854 * 4,
 188                 1280 * 960 * 4,
 189                 1280 * 1024 * 4,
 190                 1440 * 900 * 4,
 191                 1400 * 1050 * 4,
 192                 1680 * 1050 * 4,
 193                 1600 * 1200 * 4,
 194                 1920 * 1080 * 4,
 195                 1920 * 1200 * 4
 196         };
 197
 198         switch (test_number) {
 199         case 1:
 200                 /* simple test, VRAM to GTT and GTT to VRAM */
 201                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
 202                                       RADEON_GEM_DOMAIN_VRAM);
 203                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
 204                                       RADEON_GEM_DOMAIN_GTT);
 205                 break;
 206         case 2:
 207                 /* simple test, VRAM to VRAM */
 208                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
 209                                       RADEON_GEM_DOMAIN_VRAM);
 210                 break;
 211         case 3:
 212                 /* GTT to VRAM, buffer size sweep, powers of 2 */
 213                 for (i = 1; i <= 16384; i <<= 1)
 214                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
 215                                               RADEON_GEM_DOMAIN_GTT,
 216                                               RADEON_GEM_DOMAIN_VRAM);
 217                 break;
 218         case 4:
 219                 /* VRAM to GTT, buffer size sweep, powers of 2 */
 220                 for (i = 1; i <= 16384; i <<= 1)
 221                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
 222                                               RADEON_GEM_DOMAIN_VRAM,
 223                                               RADEON_GEM_DOMAIN_GTT);
 224                 break;
 225         case 5:
 226                 /* VRAM to VRAM, buffer size sweep, powers of 2 */
 227                 for (i = 1; i <= 16384; i <<= 1)
 228                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
 229                                               RADEON_GEM_DOMAIN_VRAM,
 230                                               RADEON_GEM_DOMAIN_VRAM);
 231                 break;
 232         case 6:
 233                 /* GTT to VRAM, buffer size sweep, common modes */
 234                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 235                         radeon_benchmark_move(rdev, common_modes[i],
 236                                               RADEON_GEM_DOMAIN_GTT,
 237                                               RADEON_GEM_DOMAIN_VRAM);
 238                 break;
 239         case 7:
 240                 /* VRAM to GTT, buffer size sweep, common modes */
 241                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 242                         radeon_benchmark_move(rdev, common_modes[i],
 243                                               RADEON_GEM_DOMAIN_VRAM,
 244                                               RADEON_GEM_DOMAIN_GTT);
 245                 break;
 246         case 8:
 247                 /* VRAM to VRAM, buffer size sweep, common modes */
 248                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 249                         radeon_benchmark_move(rdev, common_modes[i],
 250                                               RADEON_GEM_DOMAIN_VRAM,
 251                                               RADEON_GEM_DOMAIN_VRAM);
 252                 break;
 253
 254         default:
 255                 DRM_ERROR("Unknown benchmark\n");
 256         }
 257 }