On Thu, Oct 14, 2021 at 12:54:58AM +0300, Ville Syrjälä wrote: > On Thu, Oct 14, 2021 at 12:32:55AM +0300, Imre Deak wrote: > > On Wed, Oct 13, 2021 at 11:45:33PM +0300, Ville Syrjälä wrote: > > > On Wed, Oct 13, 2021 at 11:27:02PM +0300, Ville Syrjälä wrote: > > > > On Thu, Oct 07, 2021 at 11:35:15PM +0300, Imre Deak wrote: > > > > > Future platforms change the location of CCS control planes in CCS > > > > > framebuffers, so add intel_fb_is_rc_ccs_ctrl_plane() to query for these > > > > > > > > Don't we use the term 'ccs_plane' everywhere else? > > > > > > > > > planes independently of the platform. This function can be used > > > > > everywhere instead of is_ccs_plane() (or is_ccs_plane() && !cc_plane()), > > > > > since all the callers are only interested in control planes (and not CCS > > > > > color-clear planes). > > > > > > Hmm. I guess you're changing the terminology across the board? > > > If it's used consistently then no objections from me. > > > > ccs_plane has been used as a generic term for both the "control" and the > > cc plane, or at least I thought of it as such. > > The official definition I think is: > CCS == color control surface > > So in terms of modifier naming I suppose I tend to think > of it like this: > modifier name has CCS -> color control surface is present > modifier name has CC -> clear color is present > > But if we want to make the distinction somehow stronger I was > thinking maybe ccs_aux vs. ccs_cc. But dunno if that just ends up > being more confusing since AUX_DIST is also used for planar scanout > on skl/etc. > > Or another way to make it more clear would be to drop the "ccs" part > from the is_ccs_cc_plane() or whatever. But is_cc_plane() is perhaps > also pretty confusing. So could expand it to full on is_clear_color_plane()? Imo it's better to preserve the connection to ccs in the name, maybe regarding the cc as a subplane of the ccs plane. > Shrug. Plenty of different color paint for this one available I think. Ok with all that, I think the best would be to use the ccs_plane / ccs_cc_plane names to mean the control plane and clear color plane. Will change the patch. --Imre
