Am 30.10.2017 um 18:41 schrieb Harry Wentland: > VM support is only available for CZ and newer APUs. Trying to > enable it for dGPU will blow up in DC. > > Signed-off-by: Harry Wentland <harry.wentland at amd.com> > Suggested-by: Alex Deucher <alexander.deucher at amd.com> > CC: Christian Koenig <christian.koenig at amd.com> Ok, with me. But I think it would be cleaner if the backend can just handle this gracefully even when it is not supported by the hardware. Christian. > --- > drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c > index 26f6d5e4c08c..332761f643f6 100644 > --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c > +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c > @@ -427,6 +427,10 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) > amdgpu_dm_initialize_fbc(adev); > init_data.fbc_gpu_addr = adev->dm.compressor.gpu_addr; > #endif > + > + if (adev->flags & AMD_IS_APU && adev->asic_type >= CHIP_CARRIZO) > + init_data.flags.gpu_vm_support = true; > + > /* Display Core create. */ > adev->dm.dc = dc_create(&init_data); >
