/*
* Copyright 2009 Jerome Glisse.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Jerome Glisse
*/
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
#define AMDGPU_BENCHMARK_ITERATIONS 1024
#define AMDGPU_BENCHMARK_COMMON_MODES_N 17
static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size,
uint64_t saddr, uint64_t daddr, int n, s64 *time_ms)
{
ktime_t stime, etime;
struct dma_fence *fence;
int i, r;
stime = ktime_get();
for (i = 0; i < n; i++) {
struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
r = amdgpu_copy_buffer(ring, saddr, daddr, size, NULL, &fence,
false, false, 0);
if (r)
goto exit_do_move;
r = dma_fence_wait(fence, false);
dma_fence_put(fence);
if (r)
goto exit_do_move;
}
exit_do_move:
etime = ktime_get();
*time_ms = ktime_ms_delta(etime, stime);
return r;
}
static void amdgpu_benchmark_log_results(struct amdgpu_device *adev,
int n, unsigned size,
s64 time_ms,
unsigned sdomain, unsigned ddomain,
char *kind)
{
s64 throughput = (n * (size >> 10));
throughput = div64_s64(throughput, time_ms);
dev_info(adev->dev, "amdgpu: %s %u bo moves of %u kB from"
" %d to %d in %lld ms, throughput: %lld Mb/s or %lld MB/s\n",
kind, n, size >> 10, sdomain, ddomain, time_ms,
throughput * 8, throughput);
}
static int amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,
unsigned sdomain, unsigned ddomain)
{
struct amdgpu_bo *dobj = NULL;
struct amdgpu_bo *sobj = NULL;
uint64_t saddr, daddr;
s64 time_ms;
int r, n;
n = AMDGPU_BENCHMARK_ITERATIONS;
r = amdgpu_bo_create_kernel(adev, size,
PAGE_SIZE, sdomain,
&sobj,
&saddr,
NULL);
if (r)
goto out_cleanup;
r = amdgpu_bo_create_kernel(adev, size,
PAGE_SIZE, ddomain,
&dobj,
&daddr,
NULL);
if (r)
goto out_cleanup;
if (adev->mman.buffer_funcs) {
r = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n, &time_ms);
if (r)
goto out_cleanup;
else
amdgpu_benchmark_log_results(adev, n, size, time_ms,
sdomain, ddomain, "dma");
}
out_cleanup:
/* Check error value now. The value can be overwritten when clean up.*/
if (r < 0)
dev_info(adev->dev, "Error while benchmarking BO move.\n");
if (sobj)
amdgpu_bo_free_kernel(&sobj, &saddr, NULL);
if (dobj)
amdgpu_bo_free_kernel(&dobj, &daddr, NULL);
return r;
}
int amdgpu_benchmark(struct amdgpu_device *adev, int test_number)
{
int i, r;
static const int common_modes[AMDGPU_BENCHMARK_COMMON_MODES_N] = {
640 * 480 * 4,
720 * 480 * 4,
800 * 600 * 4,
848 * 480 * 4,
1024 * 768 * 4,
1152 * 768 * 4,
1280 * 720 * 4,
1280 * 800 * 4,
1280 * 854 * 4,
1280 * 960 * 4,
1280 * 1024 * 4,
1440 * 900 * 4,
1400 * 1050 * 4,
1680 * 1050 * 4,
1600 * 1200 * 4,
1920 * 1080 * 4,
1920 * 1200 * 4
};
mutex_lock(&adev->benchmark_mutex);
switch (test_number) {
case 1:
dev_info(adev->dev,
"benchmark test: %d (simple test, VRAM to GTT and GTT to VRAM)\n",
test_number);
/* simple test, VRAM to GTT and GTT to VRAM */
r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_DOMAIN_VRAM);
if (r)
goto done;
r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_GTT);
if (r)
goto done;
break;
case 2:
dev_info(adev->dev,
"benchmark test: %d (simple test, VRAM to VRAM)\n",
test_number);
/* simple test, VRAM to VRAM */
r = amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_VRAM);
if (r)
goto done;
break;
case 3:
dev_info(adev->dev,
"benchmark test: %d (GTT to VRAM, buffer size sweep, powers of 2)\n",
test_number);
/* GTT to VRAM, buffer size sweep, powers of 2 */
for (i = 1; i <= 16384; i <<= 1) {
r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_DOMAIN_VRAM);
if (r)
goto done;
}
break;
case 4:
dev_info(adev->dev,
"benchmark test: %d (VRAM to GTT, buffer size sweep, powers of 2)\n",
test_number);
/* VRAM to GTT, buffer size sweep, powers of 2 */
for (i = 1; i <= 16384; i <<= 1) {
r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_GTT);
if (r)
goto done;
}
break;
case 5:
dev_info(adev->dev,
"benchmark test: %d (VRAM to VRAM, buffer size sweep, powers of 2)\n",
test_number);
/* VRAM to VRAM, buffer size sweep, powers of 2 */
for (i = 1; i <= 16384; i <<= 1) {
r = amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_VRAM);
if (r)
goto done;
}
break;
case 6:
dev_info(adev->dev,
"benchmark test: %d (GTT to VRAM, buffer size sweep, common modes)\n",
test_number);
/* GTT to VRAM, buffer size sweep, common modes */
for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) {
r = amdgpu_benchmark_move(adev, common_modes[i],
AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_DOMAIN_VRAM);
if (r)
goto done;
}
break;
case 7:
dev_info(adev->dev,
"benchmark test: %d (VRAM to GTT, buffer size sweep, common modes)\n",
test_number);
/* VRAM to GTT, buffer size sweep, common modes */
for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) {
r = amdgpu_benchmark_move(adev, common_modes[i],
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_GTT);
if (r)
goto done;
}
break;
case 8:
dev_info(adev->dev,
"benchmark test: %d (VRAM to VRAM, buffer size sweep, common modes)\n",
test_number);
/* VRAM to VRAM, buffer size sweep, common modes */
for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++) {
r = amdgpu_benchmark_move(adev, common_modes[i],
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_VRAM);
if (r)
goto done;
}
break;
default:
dev_info(adev->dev, "Unknown benchmark %d\n", test_number);
r = -EINVAL;
break;
}
done:
mutex_unlock(&adev->benchmark_mutex);
return r;
}
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