[PATCH 08/11] drm/amdgpu/gfx12: manually control gfxoff for CS

[Alex Deucher]

Manually disallow and then allow gfxoff in begin_use
and end_use to avoid any potential FW races when
ringing the doorbell.  There are no known issues
with gfxoff that this solves, but it shouldn't hurt anything
and shouldn't affect power usage since we are only
toggling it around the doorbell update.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
index db5cc060de853..9ec2f5fb252a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
@@ -5331,14 +5331,14 @@ static int gfx_v12_0_reset_kcq(struct amdgpu_ring *ring, unsigned int vmid)
 static void gfx_v12_0_ring_begin_use(struct amdgpu_ring *ring)
 {
 	amdgpu_gfx_profile_ring_begin_use(ring);
-
 	amdgpu_gfx_enforce_isolation_ring_begin_use(ring);
+	amdgpu_gfx_off_ctrl_immediate(ring->adev, false);
 }
 
 static void gfx_v12_0_ring_end_use(struct amdgpu_ring *ring)
 {
+	amdgpu_gfx_off_ctrl_immediate(ring->adev, true);
 	amdgpu_gfx_profile_ring_end_use(ring);
-
 	amdgpu_gfx_enforce_isolation_ring_end_use(ring);
 }
 
-- 
2.48.1