On 29/05/17 11:24 PM, Kai Wasserbäch wrote: > Hey Michel, > Michel Dänzer wrote on 29.05.2017 11:20: >> From: Michel Dänzer <michel.daenzer at amd.com> >> >> Even if CONFIG_DRM_AMDGPU_CIK is enabled. >> >> There is no feature parity yet for CIK, in particular amdgpu doesn't >> support HDMI/DisplayPort without DC. > > that can't be correct. Indeed, I meant "HDMI/DisplayPort audio", sorry for the confusion. Will be fixed in v2. >> diff --git a/drivers/gpu/drm/amd/amdgpu/Kconfig b/drivers/gpu/drm/amd/amdgpu/Kconfig >> index 8d36087fc186..e0121f8b436e 100644 >> --- a/drivers/gpu/drm/amd/amdgpu/Kconfig >> +++ b/drivers/gpu/drm/amd/amdgpu/Kconfig >> @@ -17,11 +17,11 @@ config DRM_AMDGPU_CIK >> help >> Choose this option if you want to enable support for CIK asics. >> >> - CIK is already supported in radeon. If you enable this option, >> - support for CIK will be provided by amdgpu and disabled in >> - radeon by default. Use module options to override this: >> + CIK is already supported in radeon. Support for SI in amdgpu >> + will be disabled by default and is still provided by radeon. >> + Use module options to override this: >> >> - radeon.cik_support=1 amdgpu.cik_support=0 >> + radeon.cik_support=0 amdgpu.cik_support=1 > > What happens if I have radeon blacklisted? Do I still need to set this > additional flag? Yes, you still need to set amdgpu.cik_support=1. > If so I'd kindly request to at least fall back to amdgpu if somebody > blacklisted radeon (or didn't compile it). I'm afraid that's not possible, at least I don't know how it could be done. The intention is that these options provide a cleaner way than blacklisting for choosing between the drivers, so the options should be used instead of blacklisting. > Maybe issue a warning that not all features are supported yet. The drivers print a message when they're ignoring a GPU due to these options. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
