I have seen a couple of reports that booting Raven desktop parts requires disabling DC, although I'm not sure if that actually makes sense (I didn't think we implemented non-DC display paths for Vega/Raven). Might be specific to people with a dGPU plugged in, I guess ? ________________________________ From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Alex Deucher <alexdeucher at gmail.com> Sent: July 3, 2018 12:45 PM To: Michel Dänzer Cc: StDenis, Tom; Kuehling, Felix; amd-gfx at lists.freedesktop.org Subject: Re: SOC15 DC support warning On Tue, Jul 3, 2018 at 12:36 PM, Michel Dänzer <michel at daenzer.net> wrote: > On 2018-07-03 06:13 PM, Felix Kuehling wrote: >> On 2018-07-03 10:19 AM, Tom St Denis wrote: >>> Hi all, >>> >>> This block >>> >>> #if defined(CONFIG_DRM_AMD_DC) >>> else if (amdgpu_device_has_dc_support(adev)) >>> amdgpu_device_ip_block_add(adev, &dm_ip_block); >>> #else >>> # warning "Enable CONFIG_DRM_AMD_DC for display support on SOC15." >>> #endif >>> >>> >>> in soc15_set_ip_blocks() should probably be ported to a runtime >>> drm_warn() no? This means a kernel with no DC support will just >>> silently fail to light up on SOC15. >>> >>> I can write a patch for this if nobody objects. >> >> Maybe do both. So someone building a kernel without DC gets a warning as >> well as someone running it. > > Yep, we already do both for CONFIG_MTRR & CONFIG_X86_PAT. > > BTW, the build warning should also be guarded by #ifndef > CONFIG_COMPILE_TEST, per commit 31bb90f1cd084 "drm/amdgpu: shut up > #warning for compile testing". > > > OTOH, do we even need the capability to build the driver without DC anymore? Yeah, we can probably go ahead and remove CONFIG_DRM_AMD_DC. Alex > > > -- > Earthling Michel Dänzer | http://www.amd.com > Libre software enthusiast | Mesa and X developer > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx _______________________________________________ amd-gfx mailing list amd-gfx at lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180703/eb5edcc2/attachment.html>
