> -----Original Message----- > From: Maarten Lankhorst [mailto:[email protected]] > Sent: Monday, January 29, 2018 5:12 PM > To: Srinivas, Vidya <[email protected]>; intel- > [email protected] > Subject: Re: [Intel-gfx] [PATCH 15/15] drm/i915: Add NV12 support to > intel_framebuffer_init > > Op 20-01-18 om 22:45 schreef Vidya Srinivas: > > From: Chandra Konduru <[email protected]> > > > > This patch adds NV12 as supported format to intel_framebuffer_init and > > performs various checks. > > > > v2: > > -Fix an issue in checks added (Chandra Konduru) > > > > v3: rebased (me) > > > > v4: Review comments by Ville addressed Added platform check for NV12 > > in intel_framebuffer_init Removed offset checks for NV12 case > > > > v5: Addressed review comments by Clinton A Taylor This NV12 support > > only correctly works on SKL. > > Plane color space conversion is different on GLK and later platforms > > causing the colors to display incorrectly. > > Ville's plane color space property patch series in review will fix > > this issue. > > - Restricted the NV12 case in intel_framebuffer_init to SKL and BXT > > only. > > > > v6: Rebased (me) > > > > v7: Addressed review comments by Ville Restricting the NV12 to BXT for > > now. > > > > v8: Rebased (me) > > Restricting the NV12 changes to BXT and KBL for now. > > > > v9: Rebased (me) > > > > Tested-by: Clinton Taylor <[email protected]> > > Reviewed-by: Clinton Taylor <[email protected]> > > Signed-off-by: Chandra Konduru <[email protected]> > > Signed-off-by: Nabendu Maiti <[email protected]> > > Signed-off-by: Vidya Srinivas <[email protected]> > > --- > > drivers/gpu/drm/i915/intel_display.c | 8 ++++++++ > > 1 file changed, 8 insertions(+) > > > > diff --git a/drivers/gpu/drm/i915/intel_display.c > > b/drivers/gpu/drm/i915/intel_display.c > > index 88bc750..db42448 100644 > > --- a/drivers/gpu/drm/i915/intel_display.c > > +++ b/drivers/gpu/drm/i915/intel_display.c > > @@ -14005,6 +14005,14 @@ static int intel_framebuffer_init(struct > intel_framebuffer *intel_fb, > > goto err; > > } > > break; > > + case DRM_FORMAT_NV12: > > + if (!IS_BROXTON(dev_priv) && !IS_KABYLAKE(dev_priv)) { > > + DRM_DEBUG_KMS("unsupported pixel format: > %s\n", > > + drm_get_format_name(mode_cmd->pixel_format, > > + &format_name)); > > + goto err; > > + } > > + break; > > default: > > DRM_DEBUG_KMS("unsupported pixel format: %s\n", > > drm_get_format_name(mode_cmd- > >pixel_format, &format_name)); > > Hey, > > When implementing this for IGT I've noticed a small gap in documentation, > which will definitely need clarification somewhere. intel_framebuffer_init is > probably good enough since it's specific to how intel works internally.. > The Yf tiling mode depends on BPP, is it correct to say that plane 0 has 8 bpp > and plane 1 16 bpp for tiling calculations? > > What bpp is used? > > Are macroblock sizes always the same for Y and UV?
I think, under display buffer programming it is mentioned that: For NV12 Bpp is 1 for Y and 2 for UV. This is for all SKL+, it says. > > ~Maarten _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
