Am 27.03.2017 um 20:46 schrieb Alex Deucher:
Match what we do for other asics.
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Reviewed-by: Christian König <christian.koe...@amd.com> for the whole set.
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 697270d..1d0be75 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1226,7 +1226,7 @@ static u32 gfx_v9_0_get_rb_active_bitmap(struct
amdgpu_device *adev)
static void gfx_v9_0_setup_rb(struct amdgpu_device *adev)
{
int i, j;
- u32 data, tmp, num_rbs = 0;
+ u32 data;
u32 active_rbs = 0;
u32 rb_bitmap_width_per_sh = adev->gfx.config.max_backends_per_se /
adev->gfx.config.max_sh_per_se;
@@ -1244,10 +1244,7 @@ static void gfx_v9_0_setup_rb(struct amdgpu_device *adev)
mutex_unlock(&adev->grbm_idx_mutex);
adev->gfx.config.backend_enable_mask = active_rbs;
- tmp = active_rbs;
- while (tmp >>= 1)
- num_rbs++;
- adev->gfx.config.num_rbs = num_rbs;
+ adev->gfx.config.num_rbs = hweight32(active_rbs);
}
#define DEFAULT_SH_MEM_BASES (0x6000)
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