sys/dev/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  * $FreeBSD: head/sys/dev/drm2/radeon/radeon_benchmark.c 254885 2013-08-25 19:37:15Z dumbbell $
  25  */
  26
  27 #include <drm/drmP.h>
  28 #include <uapi_drm/radeon_drm.h>
  29 #include "radeon_reg.h"
  30 #include "radeon.h"
  31
  32 #define RADEON_BENCHMARK_COPY_BLIT 1
  33 #define RADEON_BENCHMARK_COPY_DMA  0
  34
  35 #define RADEON_BENCHMARK_ITERATIONS 1024
  36 #define RADEON_BENCHMARK_COMMON_MODES_N 17
  37
  38 static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size,
  39                                     uint64_t saddr, uint64_t daddr,
  40                                     int flag, int n)
  41 {
  42         unsigned long start_jiffies;
  43         unsigned long end_jiffies;
  44         struct radeon_fence *fence = NULL;
  45         int i, r;
  46
  47         start_jiffies = jiffies;
  48         for (i = 0; i < n; i++) {
  49                 switch (flag) {
  50                 case RADEON_BENCHMARK_COPY_DMA:
  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_copy_blit(rdev, saddr, daddr,
  57                                              size / RADEON_GPU_PAGE_SIZE,
  58                                              &fence);
  59                         break;
  60                 default:
  61                         DRM_ERROR("Unknown copy method\n");
  62                         r = -EINVAL;
  63                 }
  64                 if (r)
  65                         goto exit_do_move;
  66                 r = radeon_fence_wait(fence, false);
  67                 if (r)
  68                         goto exit_do_move;
  69                 radeon_fence_unref(&fence);
  70         }
  71         end_jiffies = jiffies;
  72         r = jiffies_to_msecs(end_jiffies - start_jiffies);
  73
  74 exit_do_move:
  75         if (fence)
  76                 radeon_fence_unref(&fence);
  77         return r;
  78 }
  79
  80
  81 static void radeon_benchmark_log_results(int n, unsigned size,
  82                                          unsigned int time,
  83                                          unsigned sdomain, unsigned ddomain,
  84                                          char *kind)
  85 {
  86         unsigned int throughput = (n * (size >> 10)) / time;
  87         DRM_INFO("radeon: %s %u bo moves of %u kB from"
  88                  " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
  89                  kind, n, size >> 10, sdomain, ddomain, time,
  90                  throughput * 8, throughput);
  91 }
  92
  93 static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size,
  94                                   unsigned sdomain, unsigned ddomain)
  95 {
  96         struct radeon_bo *dobj = NULL;
  97         struct radeon_bo *sobj = NULL;
  98         uint64_t saddr, daddr;
  99         int r, n;
 100         int time;
 101
 102         n = RADEON_BENCHMARK_ITERATIONS;
 103         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, NULL, &sobj);
 104         if (r) {
 105                 goto out_cleanup;
 106         }
 107         r = radeon_bo_reserve(sobj, false);
 108         if (unlikely(r != 0))
 109                 goto out_cleanup;
 110         r = radeon_bo_pin(sobj, sdomain, &saddr);
 111         radeon_bo_unreserve(sobj);
 112         if (r) {
 113                 goto out_cleanup;
 114         }
 115         r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, NULL, &dobj);
 116         if (r) {
 117                 goto out_cleanup;
 118         }
 119         r = radeon_bo_reserve(dobj, false);
 120         if (unlikely(r != 0))
 121                 goto out_cleanup;
 122         r = radeon_bo_pin(dobj, ddomain, &daddr);
 123         radeon_bo_unreserve(dobj);
 124         if (r) {
 125                 goto out_cleanup;
 126         }
 127
 128         if (rdev->asic->copy.dma) {
 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         if (rdev->asic->copy.blit) {
 139                 time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
 140                                                 RADEON_BENCHMARK_COPY_BLIT, n);
 141                 if (time < 0)
 142                         goto out_cleanup;
 143                 if (time > 0)
 144                         radeon_benchmark_log_results(n, size, time,
 145                                                      sdomain, ddomain, "blit");
 146         }
 147
 148 out_cleanup:
 149         if (sobj) {
 150                 r = radeon_bo_reserve(sobj, false);
 151                 if (likely(r == 0)) {
 152                         radeon_bo_unpin(sobj);
 153                         radeon_bo_unreserve(sobj);
 154                 }
 155                 radeon_bo_unref(&sobj);
 156         }
 157         if (dobj) {
 158                 r = radeon_bo_reserve(dobj, false);
 159                 if (likely(r == 0)) {
 160                         radeon_bo_unpin(dobj);
 161                         radeon_bo_unreserve(dobj);
 162                 }
 163                 radeon_bo_unref(&dobj);
 164         }
 165
 166         if (r) {
 167                 DRM_ERROR("Error while benchmarking BO move.\n");
 168         }
 169 }
 170
 171 void radeon_benchmark(struct radeon_device *rdev, int test_number)
 172 {
 173         int i;
 174         int common_modes[RADEON_BENCHMARK_COMMON_MODES_N] = {
 175                 640 * 480 * 4,
 176                 720 * 480 * 4,
 177                 800 * 600 * 4,
 178                 848 * 480 * 4,
 179                 1024 * 768 * 4,
 180                 1152 * 768 * 4,
 181                 1280 * 720 * 4,
 182                 1280 * 800 * 4,
 183                 1280 * 854 * 4,
 184                 1280 * 960 * 4,
 185                 1280 * 1024 * 4,
 186                 1440 * 900 * 4,
 187                 1400 * 1050 * 4,
 188                 1680 * 1050 * 4,
 189                 1600 * 1200 * 4,
 190                 1920 * 1080 * 4,
 191                 1920 * 1200 * 4
 192         };
 193
 194         switch (test_number) {
 195         case 1:
 196                 /* simple test, VRAM to GTT and GTT to VRAM */
 197                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
 198                                       RADEON_GEM_DOMAIN_VRAM);
 199                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
 200                                       RADEON_GEM_DOMAIN_GTT);
 201                 break;
 202         case 2:
 203                 /* simple test, VRAM to VRAM */
 204                 radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
 205                                       RADEON_GEM_DOMAIN_VRAM);
 206                 break;
 207         case 3:
 208                 /* GTT to VRAM, 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_GTT,
 212                                               RADEON_GEM_DOMAIN_VRAM);
 213                 break;
 214         case 4:
 215                 /* VRAM to GTT, 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_GTT);
 220                 break;
 221         case 5:
 222                 /* VRAM to VRAM, buffer size sweep, powers of 2 */
 223                 for (i = 1; i <= 16384; i <<= 1)
 224                         radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
 225                                               RADEON_GEM_DOMAIN_VRAM,
 226                                               RADEON_GEM_DOMAIN_VRAM);
 227                 break;
 228         case 6:
 229                 /* GTT to VRAM, 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_GTT,
 233                                               RADEON_GEM_DOMAIN_VRAM);
 234                 break;
 235         case 7:
 236                 /* VRAM to GTT, 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_GTT);
 241                 break;
 242         case 8:
 243                 /* VRAM to VRAM, buffer size sweep, common modes */
 244                 for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 245                         radeon_benchmark_move(rdev, common_modes[i],
 246                                               RADEON_GEM_DOMAIN_VRAM,
 247                                               RADEON_GEM_DOMAIN_VRAM);
 248                 break;
 249
 250         default:
 251                 DRM_ERROR("Unknown benchmark\n");
 252         }
 253 }