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drm/amdgpu: Support passing amdgpu critical error to host via GPU Mailbox.

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This feature works for SRIOV enviroment. For non-SRIOV enviroment, the
trans_error function does nothing.

The error information includes error_code (16bit), error_flags(16bit)
and error_data(64bit). Since there are not many errors, we keep the
errors in an array and transfer all errors to Host before amdgpu
initialization function (amdgpu_device_init) exit.

Signed-off-by: Gavin Wan <Gavin.Wan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Gavin Wan
2017-06-23 13:55:15 -04:00
committed by Alex Deucher
parent 8e1b90cc44
commit 890419409a
9 changed files with 200 additions and 26 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
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@@ -43,6 +43,7 @@ struct amdgpu_virt_ops {
int (*req_full_gpu)(struct amdgpu_device *adev, bool init);
int (*rel_full_gpu)(struct amdgpu_device *adev, bool init);
int (*reset_gpu)(struct amdgpu_device *adev);
void (*trans_msg)(struct amdgpu_device *adev, u32 req, u32 data1, u32 data2, u32 data3);
};
/* GPU virtualization */