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authorIlija Hadzic <ihadzic@research.bell-labs.com>2011-10-13 07:29:39 +0400
committerDave Airlie <airlied@redhat.com>2011-10-18 13:06:23 +0400
commit638dd7db599de8c49cfaf9aca9d64d9a0649ff46 (patch)
tree3efb8bd1e513cb95b0a798fdb7b16970db1362f8 /drivers/gpu/drm/radeon/radeon_benchmark.c
parentcc3405151572c4920ac187a9ef601c838fac077b (diff)
downloadlinux-638dd7db599de8c49cfaf9aca9d64d9a0649ff46.tar.xz
drm/radeon/kms: add more elaborate benchmarks
Lots of new (and hopefully useful) benchmark. Load the driver with radeon_benchmark=<test_number> and enjoy. Among tests added are VRAM to VRAM blits and blits with buffer size sweeps. The latter can be from GTT to VRAM, VRAM to GTT, and VRAM to VRAM and there are two types of sweeps: powers of two and (probably more interesting) buffers sizes that correspond to common modes. Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_benchmark.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_benchmark.c91
1 files changed, 85 insertions, 6 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_benchmark.c b/drivers/gpu/drm/radeon/radeon_benchmark.c
index 6951426dbb12..5cafc90de7f8 100644
--- a/drivers/gpu/drm/radeon/radeon_benchmark.c
+++ b/drivers/gpu/drm/radeon/radeon_benchmark.c
@@ -30,6 +30,7 @@
#define RADEON_BENCHMARK_COPY_DMA 0
#define RADEON_BENCHMARK_ITERATIONS 1024
+#define RADEON_BENCHMARK_COMMON_MODES_N 17
static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size,
uint64_t saddr, uint64_t daddr,
@@ -126,7 +127,9 @@ static void radeon_benchmark_move(struct radeon_device *rdev, unsigned size,
}
/* r100 doesn't have dma engine so skip the test */
- if (rdev->asic->copy_dma) {
+ /* also, VRAM-to-VRAM test doesn't make much sense for DMA */
+ /* skip it as well if domains are the same */
+ if ((rdev->asic->copy_dma) && (sdomain != ddomain)) {
time = radeon_benchmark_do_move(rdev, size, saddr, daddr,
RADEON_BENCHMARK_COPY_DMA, n);
if (time < 0)
@@ -167,10 +170,86 @@ out_cleanup:
}
}
-void radeon_benchmark(struct radeon_device *rdev)
+void radeon_benchmark(struct radeon_device *rdev, int test_number)
{
- radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
- RADEON_GEM_DOMAIN_VRAM);
- radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
- RADEON_GEM_DOMAIN_GTT);
+ int i;
+ int common_modes[RADEON_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 */
+ radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_GTT,
+ RADEON_GEM_DOMAIN_VRAM);
+ radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
+ RADEON_GEM_DOMAIN_GTT);
+ break;
+ case 2:
+ /* simple test, VRAM to VRAM */
+ radeon_benchmark_move(rdev, 1024*1024, RADEON_GEM_DOMAIN_VRAM,
+ RADEON_GEM_DOMAIN_VRAM);
+ break;
+ case 3:
+ /* GTT to VRAM, buffer size sweep, powers of 2 */
+ for (i = 1; i <= 65536; i <<= 1)
+ radeon_benchmark_move(rdev, i*1024,
+ RADEON_GEM_DOMAIN_GTT,
+ RADEON_GEM_DOMAIN_VRAM);
+ break;
+ case 4:
+ /* VRAM to GTT, buffer size sweep, powers of 2 */
+ for (i = 1; i <= 65536; i <<= 1)
+ radeon_benchmark_move(rdev, i*1024,
+ RADEON_GEM_DOMAIN_VRAM,
+ RADEON_GEM_DOMAIN_GTT);
+ break;
+ case 5:
+ /* VRAM to VRAM, buffer size sweep, powers of 2 */
+ for (i = 1; i <= 65536; i <<= 1)
+ radeon_benchmark_move(rdev, i*1024,
+ RADEON_GEM_DOMAIN_VRAM,
+ RADEON_GEM_DOMAIN_VRAM);
+ break;
+ case 6:
+ /* GTT to VRAM, buffer size sweep, common modes */
+ for (i = 1; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
+ radeon_benchmark_move(rdev, common_modes[i],
+ RADEON_GEM_DOMAIN_GTT,
+ RADEON_GEM_DOMAIN_VRAM);
+ break;
+ case 7:
+ /* VRAM to GTT, buffer size sweep, common modes */
+ for (i = 1; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
+ radeon_benchmark_move(rdev, common_modes[i],
+ RADEON_GEM_DOMAIN_VRAM,
+ RADEON_GEM_DOMAIN_GTT);
+ break;
+ case 8:
+ /* VRAM to VRAM, buffer size sweep, common modes */
+ for (i = 1; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
+ radeon_benchmark_move(rdev, common_modes[i],
+ RADEON_GEM_DOMAIN_VRAM,
+ RADEON_GEM_DOMAIN_VRAM);
+ break;
+
+ default:
+ DRM_ERROR("Unknown benchmark\n");
+ }
}