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>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
index 8e7a7b9..ce44358 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