Thanks for update. That's fine for me. Feel free to add my RB. Reviewed-by: Junwei Zhang <Jerry.Zhang at amd.com> On 07/04/2017 04:20 AM, Alex Deucher wrote: > Rather than checking the CONGIG_MEMSIZE register as that may > not be reliable on some APUs. > > v2: The scratch register is only used on CIK+ > > Reviewed-by: Christian König <christian.koenig at amd.com> > Signed-off-by: Alex Deucher <alexander.deucher at amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > index 63f4bed..8042a8a 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c > @@ -722,7 +722,12 @@ bool amdgpu_need_post(struct amdgpu_device *adev) > adev->has_hw_reset = false; > return true; > } > - /* then check MEM_SIZE, in case the crtcs are off */ > + > + /* bios scratch used on CIK+ */ > + if (adev->asic_type >= CHIP_BONAIRE) > + return amdgpu_atombios_scratch_need_asic_init(adev); > + > + /* check MEM_SIZE for older asics */ > reg = amdgpu_asic_get_config_memsize(adev); > > if ((reg != 0) && (reg != 0xffffffff)) >
