Hi Jani, We cannot disable any port as we might use all the ports for display. And yes, we fake the DP to use EDP panel.
Hi Nuhairi, please correct me if I'm wrong. Best regard Mustamin -----Original Message----- From: Jani Nikula [mailto:[email protected]] Sent: Wednesday, February 21, 2018 4:03 PM To: Mustaffa, Mustamin B <[email protected]>; [email protected] Cc: Anuar, Nuhairi <[email protected]>; Ville Syrjälä <[email protected]> Subject: RE: [Intel-gfx] [PATCH] drm/i915: fix the issue DP-1 not working in guest On Wed, 21 Feb 2018, "Mustaffa, Mustamin B" <[email protected]> wrote: > Hi Jani, > > In GVT (virtualization) environment, it only can use DP. Therefore, > we want to enable Port A as DP so that display panel on Port A can be > used by GVT. Why not just disable port A in the guest VBT? Or are you saying that host eDP can't be used by guest unless we fake the same port as DP? Or what are you trying to say? BR, Jani. > > Best regard > > Mustamin > > > -----Original Message----- > From: Jani Nikula [mailto:[email protected]] > Sent: Tuesday, February 20, 2018 7:35 PM > To: Mustaffa, Mustamin B <[email protected]>; > [email protected] > Cc: Mustaffa, Mustamin B <[email protected]>; Anuar, > Nuhairi <[email protected]> > Subject: Re: [Intel-gfx] [PATCH] drm/i915: fix the issue DP-1 not > working in guest > > On Tue, 20 Feb 2018, Mustamin B Mustaffa <[email protected]> > wrote: >> In GVT guest, when port A is DP, i915 will force it as an EDP panel, >> which will cause DP-1 not working in GVT guest. >> This patch fixed this issue by check intel_vgpu_active() in >> intel_ddi_compute_config(). > > Just repeating Ville's question from last June that went unanswered [1], "And > why exactly are you trying to register DP on port A?" > > BR, > Jani. > > [1] http://mid.mail-archive.com/[email protected] > >> >> Signed-off-by: Min He <[email protected]> >> Signed-off-by: Nuhairi Anuar <[email protected]> >> Signed-off-by: Mustamin B Mustaffa <[email protected]> >> --- >> drivers/gpu/drm/i915/intel_ddi.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/gpu/drm/i915/intel_ddi.c >> b/drivers/gpu/drm/i915/intel_ddi.c >> index db92a26..9f5e85c 100644 >> --- a/drivers/gpu/drm/i915/intel_ddi.c >> +++ b/drivers/gpu/drm/i915/intel_ddi.c >> @@ -2720,7 +2720,7 @@ static bool intel_ddi_compute_config(struct >> intel_encoder *encoder, >> enum port port = encoder->port; >> int ret; >> >> - if (port == PORT_A) >> + if (port == PORT_A && !intel_vgpu_active(dev_priv)) >> pipe_config->cpu_transcoder = TRANSCODER_EDP; >> >> if (intel_crtc_has_type(pipe_config, INTEL_OUTPUT_HDMI)) > > -- > Jani Nikula, Intel Open Source Technology Center -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
