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drm/amdgpu: add new emit_reg_wait callback

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Allows us to wait for a register value/mask on a ring.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-01-26 12:45:32 +01:00 committed by Alex Deucher
parent 491355937a
commit c1e877da57
2 changed files with 3 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@ -1794,6 +1794,7 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
#define amdgpu_ring_emit_cntxcntl(r, d) (r)->funcs->emit_cntxcntl((r), (d))
#define amdgpu_ring_emit_rreg(r, d) (r)->funcs->emit_rreg((r), (d))
#define amdgpu_ring_emit_wreg(r, d, v) (r)->funcs->emit_wreg((r), (d), (v))
#define amdgpu_ring_emit_reg_wait(r, d, v, m) (r)->funcs->emit_reg_wait((r), (d), (v), (m))
#define amdgpu_ring_emit_tmz(r, b) (r)->funcs->emit_tmz((r), (b))
#define amdgpu_ring_pad_ib(r, ib) ((r)->funcs->pad_ib((r), (ib)))
#define amdgpu_ring_init_cond_exec(r) (r)->funcs->init_cond_exec((r))

2
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
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@ -150,6 +150,8 @@ struct amdgpu_ring_funcs {
void (*emit_cntxcntl) (struct amdgpu_ring *ring, uint32_t flags);
void (*emit_rreg)(struct amdgpu_ring *ring, uint32_t reg);
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_tmz)(struct amdgpu_ring *ring, bool start);
/* priority functions */
void (*set_priority) (struct amdgpu_ring *ring,