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| author | Monk Liu <Monk.Liu@amd.com> | 2017-04-05 16:39:11 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-04-06 13:28:04 -0400 |
| commit | 377e275946340916c74c169c4cb0a39da99704ce (patch) | |
| tree | 89092e8eada744840fde05174bc300e220bf2138 /drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | |
| parent | bb5c9ca588d1e7856f5c95250adb2c2d2617ccf9 (diff) | |
| download | linux-377e275946340916c74c169c4cb0a39da99704ce.tar.bz2 | |
drm/amdgpu:no need to involv HDP in KIQ
1,KIQ won't touch VRAM so no need to involv HDP flush/invalidate at all.
2,According to CP hw designer KIQ better not use any PM4 package lead to wait behave.
Signed-off-by: Monk Liu <Monk.Liu@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_virt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index ecef35a1fe33..ba8b8ae6234f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -122,9 +122,7 @@ uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg) mutex_lock(&adev->virt.lock_kiq); amdgpu_ring_alloc(ring, 32); - amdgpu_ring_emit_hdp_flush(ring); amdgpu_ring_emit_rreg(ring, reg); - amdgpu_ring_emit_hdp_invalidate(ring); amdgpu_fence_emit(ring, &f); amdgpu_ring_commit(ring); mutex_unlock(&adev->virt.lock_kiq); @@ -150,9 +148,7 @@ void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v) mutex_lock(&adev->virt.lock_kiq); amdgpu_ring_alloc(ring, 32); - amdgpu_ring_emit_hdp_flush(ring); amdgpu_ring_emit_wreg(ring, reg, v); - amdgpu_ring_emit_hdp_invalidate(ring); amdgpu_fence_emit(ring, &f); amdgpu_ring_commit(ring); mutex_unlock(&adev->virt.lock_kiq); |