2 * Copyright 2009 Jerome Glisse.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Jerome Glisse
25 #include <drm/amdgpu_drm.h>
28 #define AMDGPU_BENCHMARK_ITERATIONS 1024
29 #define AMDGPU_BENCHMARK_COMMON_MODES_N 17
31 static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size,
32 uint64_t saddr, uint64_t daddr, int n)
34 unsigned long start_jiffies;
35 unsigned long end_jiffies;
36 struct fence *fence = NULL;
39 start_jiffies = jiffies;
40 for (i = 0; i < n; i++) {
41 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
42 r = amdgpu_copy_buffer(ring, saddr, daddr, size, NULL, &fence);
45 r = fence_wait(fence, false);
50 end_jiffies = jiffies;
51 r = jiffies_to_msecs(end_jiffies - start_jiffies);
60 static void amdgpu_benchmark_log_results(int n, unsigned size,
62 unsigned sdomain, unsigned ddomain,
65 unsigned int throughput = (n * (size >> 10)) / time;
66 DRM_INFO("amdgpu: %s %u bo moves of %u kB from"
67 " %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
68 kind, n, size >> 10, sdomain, ddomain, time,
69 throughput * 8, throughput);
72 static void amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,
73 unsigned sdomain, unsigned ddomain)
75 struct amdgpu_bo *dobj = NULL;
76 struct amdgpu_bo *sobj = NULL;
77 uint64_t saddr, daddr;
81 n = AMDGPU_BENCHMARK_ITERATIONS;
82 r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, sdomain, 0, NULL,
87 r = amdgpu_bo_reserve(sobj, false);
90 r = amdgpu_bo_pin(sobj, sdomain, &saddr);
91 amdgpu_bo_unreserve(sobj);
95 r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, ddomain, 0, NULL,
100 r = amdgpu_bo_reserve(dobj, false);
101 if (unlikely(r != 0))
103 r = amdgpu_bo_pin(dobj, ddomain, &daddr);
104 amdgpu_bo_unreserve(dobj);
109 if (adev->mman.buffer_funcs) {
110 time = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n);
114 amdgpu_benchmark_log_results(n, size, time,
115 sdomain, ddomain, "dma");
120 r = amdgpu_bo_reserve(sobj, false);
121 if (likely(r == 0)) {
122 amdgpu_bo_unpin(sobj);
123 amdgpu_bo_unreserve(sobj);
125 amdgpu_bo_unref(&sobj);
128 r = amdgpu_bo_reserve(dobj, false);
129 if (likely(r == 0)) {
130 amdgpu_bo_unpin(dobj);
131 amdgpu_bo_unreserve(dobj);
133 amdgpu_bo_unref(&dobj);
137 DRM_ERROR("Error while benchmarking BO move.\n");
141 void amdgpu_benchmark(struct amdgpu_device *adev, int test_number)
144 int common_modes[AMDGPU_BENCHMARK_COMMON_MODES_N] = {
164 switch (test_number) {
166 /* simple test, VRAM to GTT and GTT to VRAM */
167 amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT,
168 AMDGPU_GEM_DOMAIN_VRAM);
169 amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
170 AMDGPU_GEM_DOMAIN_GTT);
173 /* simple test, VRAM to VRAM */
174 amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
175 AMDGPU_GEM_DOMAIN_VRAM);
178 /* GTT to VRAM, buffer size sweep, powers of 2 */
179 for (i = 1; i <= 16384; i <<= 1)
180 amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
181 AMDGPU_GEM_DOMAIN_GTT,
182 AMDGPU_GEM_DOMAIN_VRAM);
185 /* VRAM to GTT, buffer size sweep, powers of 2 */
186 for (i = 1; i <= 16384; i <<= 1)
187 amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
188 AMDGPU_GEM_DOMAIN_VRAM,
189 AMDGPU_GEM_DOMAIN_GTT);
192 /* VRAM to VRAM, buffer size sweep, powers of 2 */
193 for (i = 1; i <= 16384; i <<= 1)
194 amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
195 AMDGPU_GEM_DOMAIN_VRAM,
196 AMDGPU_GEM_DOMAIN_VRAM);
199 /* GTT to VRAM, buffer size sweep, common modes */
200 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
201 amdgpu_benchmark_move(adev, common_modes[i],
202 AMDGPU_GEM_DOMAIN_GTT,
203 AMDGPU_GEM_DOMAIN_VRAM);
206 /* VRAM to GTT, buffer size sweep, common modes */
207 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
208 amdgpu_benchmark_move(adev, common_modes[i],
209 AMDGPU_GEM_DOMAIN_VRAM,
210 AMDGPU_GEM_DOMAIN_GTT);
213 /* VRAM to VRAM, buffer size sweep, common modes */
214 for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
215 amdgpu_benchmark_move(adev, common_modes[i],
216 AMDGPU_GEM_DOMAIN_VRAM,
217 AMDGPU_GEM_DOMAIN_VRAM);
221 DRM_ERROR("Unknown benchmark\n");