[PATCH 5.12 090/161] drm/amdgpu/jpeg2.5: add cancel_delayed_work_sync before power gate

From: Greg Kroah-Hartman
Date: Tue Jun 08 2021 - 15:26:06 EST


From: James Zhu <James.Zhu@xxxxxxx>

[ Upstream commit 23f10a571da5eaa63b7845d16e2f49837e841ab9 ]

Add cancel_delayed_work_sync before set power gating state
to avoid race condition issue when power gating.

Signed-off-by: James Zhu <James.Zhu@xxxxxxx>
Reviewed-by: Leo Liu <leo.liu@xxxxxxx>
Acked-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
index dc947c8ffe21..e6c4a36eaf9a 100644
--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
@@ -187,14 +187,14 @@ static int jpeg_v2_5_hw_init(void *handle)
static int jpeg_v2_5_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
- struct amdgpu_ring *ring;
int i;

+ cancel_delayed_work_sync(&adev->vcn.idle_work);
+
for (i = 0; i < adev->jpeg.num_jpeg_inst; ++i) {
if (adev->jpeg.harvest_config & (1 << i))
continue;

- ring = &adev->jpeg.inst[i].ring_dec;
if (adev->jpeg.cur_state != AMD_PG_STATE_GATE &&
RREG32_SOC15(JPEG, i, mmUVD_JRBC_STATUS))
jpeg_v2_5_set_powergating_state(adev, AMD_PG_STATE_GATE);
--
2.30.2