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>

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);