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| author | Alex Deucher <alexander.deucher@amd.com> | 2017-06-30 17:21:42 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-07-14 11:06:05 -0400 |
| commit | 4426826c02dc367ec3c245ef5c5ca4dcdb45b4c8 (patch) | |
| tree | dab4c2aa91e786ebf1031b69eae61ef26ab4c90e /drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | |
| parent | d05da0e24bb584baf634489810561fc3d2a83bf3 (diff) | |
| download | linux-4426826c02dc367ec3c245ef5c5ca4dcdb45b4c8.tar.bz2 | |
drm/amdgpu/atombios: add function for whether we need asic_init
Check the atom scratch registers to see if asic_init is complete
or not.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c index 8e7a7b9baa1d..ce443586a0c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c @@ -1756,6 +1756,16 @@ void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev, WREG32(adev->bios_scratch_reg_offset + 3, tmp); } +bool amdgpu_atombios_scratch_need_asic_init(struct amdgpu_device *adev) +{ + u32 tmp = RREG32(adev->bios_scratch_reg_offset + 7); + + if (tmp & ATOM_S7_ASIC_INIT_COMPLETE_MASK) + return false; + else + return true; +} + /* Atom needs data in little endian format * so swap as appropriate when copying data to * or from atom. Note that atom operates on |