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| author |   Jammy Zhou <Jammy.Zhou@amd.com> | 2015-05-11 23:49:34 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2015-06-03 21:03:31 -0400 |
| commit | aa2bdb2476206c7de4473850039daa705230c27b (patch) | |
| tree | 27b0f09eb25aaac5e4e8f69fcd6f5304bc0aa6c3 /drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | |
| parent | drm/amdgpu: add flags for amdgpu_ib structure (diff) | |
| download | linux-dev-aa2bdb2476206c7de4473850039daa705230c27b.tar.xz linux-dev-aa2bdb2476206c7de4473850039daa705230c27b.zip | |
drm/amdgpu: add CE preamble flag v3
The CE preamble IB can be dropped for the same context
v2: use the flags directly
v3: remove 'CE' for potential preamble usage by other rings
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c index 7428c4305418..cec46ebae5f7 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c @@ -2518,6 +2518,13 @@ static void gfx_v7_0_ring_emit_ib(struct amdgpu_ring *ring, { u32 header, control = 0; u32 next_rptr = ring->wptr + 5; + + /* drop the CE preamble IB for the same context */ + if ((ring->type == AMDGPU_RING_TYPE_GFX) && + (ib->flags & AMDGPU_IB_FLAG_PREAMBLE) && + !ring->need_ctx_switch) + return; + if (ring->type == AMDGPU_RING_TYPE_COMPUTE) control |= INDIRECT_BUFFER_VALID; |