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| author | Haohui Mai <ricetons@gmail.com> | 2022-04-25 20:23:38 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-04-26 11:44:06 -0400 |
| commit | ca5d251b3b6e3aabf2d1bb7261c6b8e156b7ee16 (patch) | |
| tree | 6c00c46f2910668320ec41b5d21515c90b7863fd /drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c | |
| parent | 7dba6e838e741caadcf27ef717b6dcb561e77f89 (diff) | |
| download | lwn-ca5d251b3b6e3aabf2d1bb7261c6b8e156b7ee16.tar.gz lwn-ca5d251b3b6e3aabf2d1bb7261c6b8e156b7ee16.zip | |
drm/amdgpu/sdma: Remove redundant lower_32_bits() calls when settings SDMA doorbell
Updated the patch for the pre-vega hardware. I kept the clamping code
to be safe.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Haohui Mai <ricetons@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c index 1d8bbcbd7a37..84b57b06b20c 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c @@ -223,7 +223,7 @@ static void sdma_v2_4_ring_set_wptr(struct amdgpu_ring *ring) { struct amdgpu_device *adev = ring->adev; - WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me], lower_32_bits(ring->wptr) << 2); + WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me], ring->wptr << 2); } static void sdma_v2_4_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) @@ -465,7 +465,7 @@ static int sdma_v2_4_gfx_resume(struct amdgpu_device *adev) WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40); ring->wptr = 0; - WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], lower_32_bits(ring->wptr) << 2); + WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2); /* enable DMA RB */ rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1); |