On 10/18/2021 1:06 PM, Quan, Evan wrote:
[AMD Official Use Only] Ping..-----Original Message----- From: Quan, Evan <evan.q...@amd.com> Sent: Monday, October 11, 2021 4:28 PM To: amd-gfx@lists.freedesktop.org Cc: Deucher, Alexander <alexander.deuc...@amd.com>; Grodzovsky, Andrey <andrey.grodzov...@amd.com>; Quan, Evan <evan.q...@amd.com> Subject: [PATCH] drm/amdgpu: fix Polaris12 uvd crash on driver unload This is a supplement for the change below: cdccf1ffe1a3 drm/amdgpu: Fix crash on device remove/driver unload Signed-off-by: Evan Quan <evan.q...@amd.com> Change-Id: Iedc25e2f572f04772511d56781b01b481e22fd00 --- drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c index d5d023a24269..2d558c2f417d 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c @@ -534,6 +534,19 @@ static int uvd_v6_0_hw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; + cancel_delayed_work_sync(&adev->uvd.idle_work); +
To solve Boris' issue, this patch should be modified such that DPM disable done by the idle job shouldn't be executed during hw_fini. Preventing powergate during suspend is not needed.
Thanks, Lijo
+ if (RREG32(mmUVD_STATUS) != 0) + uvd_v6_0_stop(adev); + + return 0; +} + +static int uvd_v6_0_suspend(void *handle) { + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + /* * Proper cleanups before halting the HW engine: * - cancel the delayed idle work @@ -558,17 +571,6 @@ static int uvd_v6_0_hw_fini(void *handle) AMD_CG_STATE_GATE); } - if (RREG32(mmUVD_STATUS) != 0) - uvd_v6_0_stop(adev); - - return 0; -} - -static int uvd_v6_0_suspend(void *handle) -{ - int r; - struct amdgpu_device *adev = (struct amdgpu_device *)handle; - r = uvd_v6_0_hw_fini(adev); if (r) return r; -- 2.29.0
