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| author | Alex Deucher <alexander.deucher@amd.com> | 2018-03-27 11:58:14 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-05-15 13:43:13 -0500 |
| commit | 828536385ab0d25b5ddd7153347df04ea3a6961d (patch) | |
| tree | 94745c42689a8b2a48bf012572eb4efae5094ad8 /drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | |
| parent | 9da00630188da6e8ad1596c2b58809c833b16154 (diff) | |
| download | linux-828536385ab0d25b5ddd7153347df04ea3a6961d.tar.bz2 | |
drm/amdgpu: add emit_reg_write_reg_wait ring callback
This callback writes a value to a register and then reads
back another register and waits for a value in a single
operation.
Provide a helper function using two operations for engines
that don't support this opertion.
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h index 1a5911882657..08fcdf6f7b53 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h @@ -154,6 +154,9 @@ struct amdgpu_ring_funcs { void (*emit_wreg)(struct amdgpu_ring *ring, uint32_t reg, uint32_t val); void (*emit_reg_wait)(struct amdgpu_ring *ring, uint32_t reg, uint32_t val, uint32_t mask); + void (*emit_reg_write_reg_wait)(struct amdgpu_ring *ring, + uint32_t reg0, uint32_t reg1, + uint32_t ref, uint32_t mask); void (*emit_tmz)(struct amdgpu_ring *ring, bool start); /* priority functions */ void (*set_priority) (struct amdgpu_ring *ring, @@ -228,6 +231,10 @@ int amdgpu_ring_lru_get(struct amdgpu_device *adev, int type, int *blacklist, int num_blacklist, bool lru_pipe_order, struct amdgpu_ring **ring); void amdgpu_ring_lru_touch(struct amdgpu_device *adev, struct amdgpu_ring *ring); +void amdgpu_ring_emit_reg_write_reg_wait_helper(struct amdgpu_ring *ring, + uint32_t reg0, uint32_t val0, + uint32_t reg1, uint32_t val1); + static inline void amdgpu_ring_clear_ring(struct amdgpu_ring *ring) { int i = 0; |