diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c index b2c364b8695f9a9f0d31ed645acb6ab1b059c8a6..b4dd89af6f09cf6b1345daacfd6f3d615f4032a2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c @@ -39,6 +39,8 @@ #include "cikd.h" #include "uvd/uvd_4_2_d.h" +#include "amdgpu_ras.h" + /* 1 second timeout */ #define UVD_IDLE_TIMEOUT msecs_to_jiffies(1000) @@ -372,7 +374,13 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev) if (!adev->uvd.inst[j].saved_bo) return -ENOMEM; - memcpy_fromio(adev->uvd.inst[j].saved_bo, ptr, size); + /* re-write 0 since err_event_athub will corrupt VCPU buffer */ + if (amdgpu_ras_intr_triggered()) { + DRM_WARN("UVD VCPU state may lost due to RAS ERREVENT_ATHUB_INTERRUPT\n"); + memset(adev->uvd.inst[j].saved_bo, 0, size); + } else { + memcpy_fromio(adev->uvd.inst[j].saved_bo, ptr, size); + } } return 0; }