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drm/amdgpu: support fill mem for LSDMA

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Support constant data filling in PIO mode for LSDMA.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Likun Gao
2022-05-06 14:50:38 -04:00
committed by Alex Deucher
parent f932ffbbf6
commit d9b9aaae3a
3 changed files with 92 additions and 16 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_lsdma.h
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@@ -31,9 +31,15 @@ struct amdgpu_lsdma {
struct amdgpu_lsdma_funcs {
int (*copy_mem)(struct amdgpu_device *adev, uint64_t src_addr,
uint64_t dst_addr, uint64_t size);
int (*fill_mem)(struct amdgpu_device *adev, uint64_t dst_addr,
uint32_t data, uint64_t size);
};
int amdgpu_lsdma_copy_mem(struct amdgpu_device *adev, uint64_t src_addr,
uint64_t dst_addr, uint64_t mem_size);
int amdgpu_lsdma_fill_mem(struct amdgpu_device *adev, uint64_t dst_addr,
uint32_t data, uint64_t mem_size);
int amdgpu_lsdma_wait_for(struct amdgpu_device *adev, uint32_t reg_index,
uint32_t reg_val, uint32_t mask);
#endif