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/*
* 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/drmP.h>
#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)
{
unsigned long start_jiffies;
unsigned long end_jiffies;
struct dma_fence *fence = NULL;
int i, r;
start_jiffies = jiffies;
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);
if (r)
goto exit_do_move;
r = dma_fence_wait(fence, false);
if (r)
goto exit_do_move;
dma_fence_put(fence);
}
end_jiffies = jiffies;
r = jiffies_to_msecs(end_jiffies - start_jiffies);
exit_do_move:
if (fence)
dma_fence_put(fence);
return r;
}
static void amdgpu_benchmark_log_results(int n, unsigned size,
unsigned int time,
unsigned sdomain, unsigned ddomain,
char *kind)
{
unsigned int throughput = (n * (size >> 10)) / time;
DRM_INFO("amdgpu: %s %u bo moves of %u kB from"
" %d to %d in %u ms, throughput: %u Mb/s or %u MB/s\n",
kind, n, size >> 10, sdomain, ddomain, time,
throughput * 8, throughput);
}
static void 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;
int r, n;
int time;
n = AMDGPU_BENCHMARK_ITERATIONS;
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, sdomain, 0, NULL,
NULL, &sobj);
if (r) {
goto out_cleanup;
}
r = amdgpu_bo_reserve(sobj, false);
if (unlikely(r != 0))
goto out_cleanup;
r = amdgpu_bo_pin(sobj, sdomain, &saddr);
amdgpu_bo_unreserve(sobj);
if (r) {
goto out_cleanup;
}
r = amdgpu_bo_create(adev, size, PAGE_SIZE, true, ddomain, 0, NULL,
NULL, &dobj);
if (r) {
goto out_cleanup;
}
r = amdgpu_bo_reserve(dobj, false);
if (unlikely(r != 0))
goto out_cleanup;
r = amdgpu_bo_pin(dobj, ddomain, &daddr);
amdgpu_bo_unreserve(dobj);
if (r) {
goto out_cleanup;
}
if (adev->mman.buffer_funcs) {
time = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n);
if (time < 0)
goto out_cleanup;
if (time > 0)
amdgpu_benchmark_log_results(n, size, time,
sdomain, ddomain, "dma");
}
out_cleanup:
/* Check error value now. The value can be overwritten when clean up.*/
if (r) {
DRM_ERROR("Error while benchmarking BO move.\n");
}
if (sobj) {
r = amdgpu_bo_reserve(sobj, true);
if (likely(r == 0)) {
amdgpu_bo_unpin(sobj);
amdgpu_bo_unreserve(sobj);
}
amdgpu_bo_unref(&sobj);
}
if (dobj) {
r = amdgpu_bo_reserve(dobj, true);
if (likely(r == 0)) {
amdgpu_bo_unpin(dobj);
amdgpu_bo_unreserve(dobj);
}
amdgpu_bo_unref(&dobj);
}
}
void amdgpu_benchmark(struct amdgpu_device *adev, int test_number)
{
int i;
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
};
switch (test_number) {
case 1:
/* simple test, VRAM to GTT and GTT to VRAM */
amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_DOMAIN_VRAM);
amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_GTT);
break;
case 2:
/* simple test, VRAM to VRAM */
amdgpu_benchmark_move(adev, 1024*1024, AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_VRAM);
break;
case 3:
/* GTT to VRAM, buffer size sweep, powers of 2 */
for (i = 1; i <= 16384; i <<= 1)
amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_DOMAIN_VRAM);
break;
case 4:
/* VRAM to GTT, buffer size sweep, powers of 2 */
for (i = 1; i <= 16384; i <<= 1)
amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_GTT);
break;
case 5:
/* VRAM to VRAM, buffer size sweep, powers of 2 */
for (i = 1; i <= 16384; i <<= 1)
amdgpu_benchmark_move(adev, i * AMDGPU_GPU_PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_VRAM);
break;
case 6:
/* GTT to VRAM, buffer size sweep, common modes */
for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
amdgpu_benchmark_move(adev, common_modes[i],
AMDGPU_GEM_DOMAIN_GTT,
AMDGPU_GEM_DOMAIN_VRAM);
break;
case 7:
/* VRAM to GTT, buffer size sweep, common modes */
for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
amdgpu_benchmark_move(adev, common_modes[i],
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_GTT);
break;
case 8:
/* VRAM to VRAM, buffer size sweep, common modes */
for (i = 0; i < AMDGPU_BENCHMARK_COMMON_MODES_N; i++)
amdgpu_benchmark_move(adev, common_modes[i],
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_DOMAIN_VRAM);
break;
default:
DRM_ERROR("Unknown benchmark\n");
}
}
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