drm/radeon/radeon_benchmark.c

0001 /*
0002  * Copyright 2009 Jerome Glisse.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: Jerome Glisse
0023  */
0024
0025 #include <drm/radeon_drm.h>
0026 #include "radeon_reg.h"
0027 #include "radeon.h"
0028
0029 #define RADEON_BENCHMARK_COPY_BLIT 1
0030 #define RADEON_BENCHMARK_COPY_DMA  0
0031
0032 #define RADEON_BENCHMARK_ITERATIONS 1024
0033 #define RADEON_BENCHMARK_COMMON_MODES_N 17
0034
0035 static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size,
0036                     uint64_t saddr, uint64_t daddr,
0037                     int flag, int n,
0038                     struct dma_resv *resv)
0039 {
0040     unsigned long start_jiffies;
0041     unsigned long end_jiffies;
0042     struct radeon_fence *fence = NULL;
0043     int i, r;
0044
0045     start_jiffies = jiffies;
0046     for (i = 0; i < n; i++) {
0047         switch (flag) {
0048         case RADEON_BENCHMARK_COPY_DMA:
0049             fence = radeon_copy_dma(rdev, saddr, daddr,
0050                         size / RADEON_GPU_PAGE_SIZE,
0051                         resv);
0052             break;
0053         case RADEON_BENCHMARK_COPY_BLIT:
0054             fence = radeon_copy_blit(rdev, saddr, daddr,
0055                          size / RADEON_GPU_PAGE_SIZE,
0056                          resv);
0057             break;
0058         default:
0059             DRM_ERROR("Unknown copy method\n");
0060             return -EINVAL;
0061         }
0062         if (IS_ERR(fence))
0063             return PTR_ERR(fence);
0064
0065         r = radeon_fence_wait(fence, false);
0066         radeon_fence_unref(&fence);
0067         if (r)
0068             return r;
0069     }
0070     end_jiffies = jiffies;
0071     return jiffies_to_msecs(end_jiffies - start_jiffies);
0072 }
0073
0074
0075 static void radeon_benchmark_log_results(int n, unsigned size,
0076                      unsigned int time,
0077                      unsigned sdomain, unsigned ddomain,
0078                      char *kind)
0079 {
0080     unsigned int throughput = (n * (size >> 10)) / time;
0081     DRM_INFO("radeon: %s %u bo moves of %u kB from"
0082          " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
0083          kind, n, size >> 10, sdomain, ddomain, time,
0084          throughput * 8, throughput);
0085 }
0086
0087 static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size,
0088                   unsigned sdomain, unsigned ddomain)
0089 {
0090     struct radeon_bo *dobj = NULL;
0091     struct radeon_bo *sobj = NULL;
0092     uint64_t saddr, daddr;
0093     int r, n;
0094     int time;
0095
0096     n = RADEON_BENCHMARK_ITERATIONS;
0097     r = radeon_bo_create(rdev, size, PAGE_SIZE, true, sdomain, 0, NULL, NULL, &sobj);
0098     if (r) {
0099         goto out_cleanup;
0100     }
0101     r = radeon_bo_reserve(sobj, false);
0102     if (unlikely(r != 0))
0103         goto out_cleanup;
0104     r = radeon_bo_pin(sobj, sdomain, &saddr);
0105     radeon_bo_unreserve(sobj);
0106     if (r) {
0107         goto out_cleanup;
0108     }
0109     r = radeon_bo_create(rdev, size, PAGE_SIZE, true, ddomain, 0, NULL, NULL, &dobj);
0110     if (r) {
0111         goto out_cleanup;
0112     }
0113     r = radeon_bo_reserve(dobj, false);
0114     if (unlikely(r != 0))
0115         goto out_cleanup;
0116     r = radeon_bo_pin(dobj, ddomain, &daddr);
0117     radeon_bo_unreserve(dobj);
0118     if (r) {
0119         goto out_cleanup;
0120     }
0121
0122     if (rdev->asic->copy.dma) {
0123         time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
0124                         RADEON_BENCHMARK_COPY_DMA, n,
0125                         dobj->tbo.base.resv);
0126         if (time < 0)
0127             goto out_cleanup;
0128         if (time > 0)
0129             radeon_benchmark_log_results(n, size, time,
0130                              sdomain, ddomain, "dma");
0131     }
0132
0133     if (rdev->asic->copy.blit) {
0134         time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
0135                         RADEON_BENCHMARK_COPY_BLIT, n,
0136                         dobj->tbo.base.resv);
0137         if (time < 0)
0138             goto out_cleanup;
0139         if (time > 0)
0140             radeon_benchmark_log_results(n, size, time,
0141                              sdomain, ddomain, "blit");
0142     }
0143
0144 out_cleanup:
0145     if (sobj) {
0146         r = radeon_bo_reserve(sobj, false);
0147         if (likely(r == 0)) {
0148             radeon_bo_unpin(sobj);
0149             radeon_bo_unreserve(sobj);
0150         }
0151         radeon_bo_unref(&sobj);
0152     }
0153     if (dobj) {
0154         r = radeon_bo_reserve(dobj, false);
0155         if (likely(r == 0)) {
0156             radeon_bo_unpin(dobj);
0157             radeon_bo_unreserve(dobj);
0158         }
0159         radeon_bo_unref(&dobj);
0160     }
0161
0162     if (r) {
0163         DRM_ERROR("Error while benchmarking BO move.\n");
0164     }
0165 }
0166
0167 void radeon_benchmark(struct radeon_device *rdev, int test_number)
0168 {
0169     int i;
0170     int common_modes[RADEON_BENCHMARK_COMMON_MODES_N] = {
0171         640 * 480 * 4,
0172         720 * 480 * 4,
0173         800 * 600 * 4,
0174         848 * 480 * 4,
0175         1024 * 768 * 4,
0176         1152 * 768 * 4,
0177         1280 * 720 * 4,
0178         1280 * 800 * 4,
0179         1280 * 854 * 4,
0180         1280 * 960 * 4,
0181         1280 * 1024 * 4,
0182         1440 * 900 * 4,
0183         1400 * 1050 * 4,
0184         1680 * 1050 * 4,
0185         1600 * 1200 * 4,
0186         1920 * 1080 * 4,
0187         1920 * 1200 * 4
0188     };
0189
0190     switch (test_number) {
0191     case 1:
0192         /* simple test, VRAM to GTT and GTT to VRAM */
0193         radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
0194                       RADEON_GEM_DOMAIN_VRAM);
0195         radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
0196                       RADEON_GEM_DOMAIN_GTT);
0197         break;
0198     case 2:
0199         /* simple test, VRAM to VRAM */
0200         radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
0201                       RADEON_GEM_DOMAIN_VRAM);
0202         break;
0203     case 3:
0204         /* GTT to VRAM, buffer size sweep, powers of 2 */
0205         for (i = 1; i <= 16384; i <<= 1)
0206             radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
0207                           RADEON_GEM_DOMAIN_GTT,
0208                           RADEON_GEM_DOMAIN_VRAM);
0209         break;
0210     case 4:
0211         /* VRAM to GTT, buffer size sweep, powers of 2 */
0212         for (i = 1; i <= 16384; i <<= 1)
0213             radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
0214                           RADEON_GEM_DOMAIN_VRAM,
0215                           RADEON_GEM_DOMAIN_GTT);
0216         break;
0217     case 5:
0218         /* VRAM to VRAM, buffer size sweep, powers of 2 */
0219         for (i = 1; i <= 16384; i <<= 1)
0220             radeon_benchmark_move(rdev, i * RADEON_GPU_PAGE_SIZE,
0221                           RADEON_GEM_DOMAIN_VRAM,
0222                           RADEON_GEM_DOMAIN_VRAM);
0223         break;
0224     case 6:
0225         /* GTT to VRAM, buffer size sweep, common modes */
0226         for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
0227             radeon_benchmark_move(rdev, common_modes[i],
0228                           RADEON_GEM_DOMAIN_GTT,
0229                           RADEON_GEM_DOMAIN_VRAM);
0230         break;
0231     case 7:
0232         /* VRAM to GTT, buffer size sweep, common modes */
0233         for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
0234             radeon_benchmark_move(rdev, common_modes[i],
0235                           RADEON_GEM_DOMAIN_VRAM,
0236                           RADEON_GEM_DOMAIN_GTT);
0237         break;
0238     case 8:
0239         /* VRAM to VRAM, buffer size sweep, common modes */
0240         for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
0241             radeon_benchmark_move(rdev, common_modes[i],
0242                           RADEON_GEM_DOMAIN_VRAM,
0243                           RADEON_GEM_DOMAIN_VRAM);
0244         break;
0245
0246     default:
0247         DRM_ERROR("Unknown benchmark\n");
0248     }
0249 }