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drm/amdgpu: not to save bo in the case of RAS err_event_athub 

[ Upstream commit fa1f1cc09d588a90c8ce3f507c47df257461d148 ]

err_event_athub will corrupt VCPU buffer and not good to
be restored in amdgpu_vcn_resume() and in this case
the VCPU buffer needs to be cleared for VCN firmware to
work properly.

Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: David (Ming Qiang) Wu <David.Wu3@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David (Ming Qiang) Wu 2023-09-14 16:34:08 -04:00 committed by Greg Kroah-Hartman
parent 20c2d2c323
commit 0a810a3fc6
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
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@ -292,8 +292,15 @@ int amdgpu_vcn_suspend(struct amdgpu_device *adev)
void *ptr;
int i, idx;
bool in_ras_intr = amdgpu_ras_intr_triggered();
cancel_delayed_work_sync(&adev->vcn.idle_work);
/* err_event_athub will corrupt VCPU buffer, so we need to
* restore fw data and clear buffer in amdgpu_vcn_resume() */
if (in_ras_intr)
return 0;
for (i = 0; i < adev->vcn.num_vcn_inst; ++i) {
if (adev->vcn.harvest_config & (1 << i))
continue;