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radeonsi: test uncached clear/copy buffer performance with compute shaders

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Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4935>
This commit is contained in:
Marek Olšák 2020-05-06 19:29:51 -04:00 • committed by Marge Bot
parent 5acf99e81f
commit c9ccceff10
1 changed files with 19 additions and 13 deletions
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32
src/gallium/drivers/radeonsi/si_test_dma_perf.c
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@ -48,7 +48,7 @@ void si_test_dma_perf(struct si_screen *sscreen)
static const unsigned cs_waves_per_sh_list[] = {0, 2, 4, 8, 16};
#define NUM_SHADERS ARRAY_SIZE(cs_dwords_per_thread_list)
#define NUM_METHODS (4 + 2 * NUM_SHADERS * ARRAY_SIZE(cs_waves_per_sh_list))
#define NUM_METHODS (4 + 3 * NUM_SHADERS * ARRAY_SIZE(cs_waves_per_sh_list))
static const char *method_str[] = {
"CP MC ",
@ -103,12 +103,11 @@ void si_test_dma_perf(struct si_screen *sscreen)
bool test_sdma = method == 3;
bool test_cs = method >= 4;
unsigned cs_method = method - 4;
STATIC_ASSERT(L2_STREAM + 1 == L2_LRU);
unsigned cs_waves_per_sh =
test_cs ? cs_waves_per_sh_list[cs_method / (2 * NUM_SHADERS)] : 0;
cs_method %= 2 * NUM_SHADERS;
test_cs ? cs_waves_per_sh_list[cs_method / (3 * NUM_SHADERS)] : 0;
cs_method %= 3 * NUM_SHADERS;
unsigned cache_policy =
test_cp ? method % 3 : test_cs ? L2_STREAM + (cs_method / NUM_SHADERS) : 0;
test_cp ? method % 3 : test_cs ? (cs_method / NUM_SHADERS) : 0;
unsigned cs_dwords_per_thread =
test_cs ? cs_dwords_per_thread_list[cs_method % NUM_SHADERS] : 0;
@ -124,6 +123,12 @@ void si_test_dma_perf(struct si_screen *sscreen)
continue;
}
/* SI_RESOURCE_FLAG_UNCACHED setting RADEON_FLAG_UNCACHED doesn't affect
* chips before gfx9.
*/
if (test_cs && cache_policy && sctx->chip_class < GFX9)
continue;
printf("%s ,", placement_str[placement]);
if (test_cs) {
printf("CS x%-4u,%3s,", cs_dwords_per_thread,
@ -149,6 +154,7 @@ void si_test_dma_perf(struct si_screen *sscreen)
struct pipe_resource *dst, *src;
struct pipe_query *q[NUM_RUNS];
unsigned query_type = PIPE_QUERY_TIME_ELAPSED;
unsigned flags = cache_policy == L2_BYPASS ? SI_RESOURCE_FLAG_UNCACHED : 0;
if (test_sdma) {
if (sctx->chip_class == GFX6)
@ -167,8 +173,8 @@ void si_test_dma_perf(struct si_screen *sscreen)
else
src_usage = PIPE_USAGE_STREAM;
dst = pipe_buffer_create(screen, 0, dst_usage, size);
src = is_copy ? pipe_buffer_create(screen, 0, src_usage, size) : NULL;
dst = pipe_aligned_buffer_create(screen, flags, dst_usage, size, 256);
src = is_copy ? pipe_aligned_buffer_create(screen, flags, src_usage, size, 256) : NULL;
/* Run tests. */
for (unsigned iter = 0; iter < NUM_RUNS; iter++) {
@ -446,17 +452,17 @@ void si_test_dma_perf(struct si_screen *sscreen)
printf("return ");
assert(best);
const char *cache_policy_str =
best->cache_policy == L2_BYPASS ? "L2_BYPASS" :
best->cache_policy == L2_LRU ? "L2_LRU " : "L2_STREAM";
if (best->is_cp) {
printf("CP_DMA(%s);\n",
best->cache_policy == L2_BYPASS
? "L2_BYPASS"
: best->cache_policy == L2_LRU ? "L2_LRU " : "L2_STREAM");
printf("CP_DMA(%s);\n", cache_policy_str);
}
if (best->is_sdma)
printf("SDMA;\n");
if (best->is_cs) {
printf("COMPUTE(%s, %u, %u);\n",
best->cache_policy == L2_LRU ? "L2_LRU " : "L2_STREAM",
printf("COMPUTE(%s, %u, %u);\n", cache_policy_str,
best->dwords_per_thread, best->waves_per_sh);
}
}