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drm/amdgpu/atomfirmware: add function to update engine hang status 

Update the scratch reg for when the engine is hung.

Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2017-05-05 10:21:36 -04:00
parent 634b6a8a06
commit de70c6357b
2 changed files with 15 additions and 0 deletions
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13
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
View File

@ -88,6 +88,19 @@ void amdgpu_atomfirmware_scratch_regs_restore(struct amdgpu_device *adev)
WREG32(adev->bios_scratch_reg_offset + i, adev->bios_scratch[i]);
}
void amdgpu_atomfirmware_scratch_regs_engine_hung(struct amdgpu_device *adev,
bool hung)
{
u32 tmp = RREG32(adev->bios_scratch_reg_offset + 3);
if (hung)
tmp |= ATOM_S3_ASIC_GUI_ENGINE_HUNG;
else
tmp &= ~ATOM_S3_ASIC_GUI_ENGINE_HUNG;
WREG32(adev->bios_scratch_reg_offset + 3, tmp);
}
int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev)
{
struct atom_context *ctx = adev->mode_info.atom_context;

2
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
View File

@ -28,6 +28,8 @@ bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev)
void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev);
void amdgpu_atomfirmware_scratch_regs_save(struct amdgpu_device *adev);
void amdgpu_atomfirmware_scratch_regs_restore(struct amdgpu_device *adev);
void amdgpu_atomfirmware_scratch_regs_engine_hung(struct amdgpu_device *adev,
bool hung);
int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev);
#endif