[PATCH v2] drm/radeon/kms: remove benchmarks shorter than one page

[Ilija Hadzic]

copy_blit operation works only on integral number of pages
so benchmarks shorter than one page size (4K) do not make sense

v2: use RADEON_GPU_PAGE_SIZE instead of "magic" 1024 number and
    sweep sizes between 1x<page_size> to 16x<page_size> doubling
    the size in each iteration; we get the same coverage, as
    in the original benchmark, but guarantee integer multiples
    of page size

Signed-off-by: Ilija Hadzic <ihadzic at research.bell-labs.com>
---
 drivers/gpu/drm/radeon/radeon_benchmark.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_benchmark.c b/drivers/gpu/drm/radeon/radeon_benchmark.c
index 815f234..d3c0002 100644
--- a/drivers/gpu/drm/radeon/radeon_benchmark.c
+++ b/drivers/gpu/drm/radeon/radeon_benchmark.c
@@ -208,22 +208,22 @@ void radeon_benchmark(struct radeon_device *rdev, int test_number)
 		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,
+		for (i = 1; i <= 16384; i <<= 1)
+			radeon_benchmark_move(rdev, i*RADEON_GPU_PAGE_SIZE,
 					      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,
+		for (i = 1; i <= 16384; i <<= 1)
+			radeon_benchmark_move(rdev, i*RADEON_GPU_PAGE_SIZE,
 					      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,
+		for (i = 1; i <= 16384; i <<= 1)
+			radeon_benchmark_move(rdev, i*RADEON_GPU_PAGE_SIZE,
 					      RADEON_GEM_DOMAIN_VRAM,
 					      RADEON_GEM_DOMAIN_VRAM);
 		break;
-- 
1.7.7