Am 30.10.2017 um 19:52 schrieb Harry Wentland: > On 2017-10-30 02:00 PM, Christian König wrote: >> 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. >> > Yes, I think we're all agreed on this. I just thought I'd send out something because it looked like it might be urgent. This is kind-of unplanned work for me and not on top of my list with everything else that's happening right now. Calm down, that isn't even remotely urgent. I would like to finish it before 4.15, but we have at least two weeks before the next merge window. And even then I don't think it would hurt us to much if we need to wait for 4.16. Christian. > > Harry > >> 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); >>> >>
