[Intel-gfx] [PATCH v2 0/6] 3 display pipes combination system support

[Ville Syrjälä]

On Tue, Feb 11, 2020 at 09:39:37PM +0530, Anshuman Gupta wrote:
> On 2020-02-07 at 18:15:31 +0200, Ville Syrjälä wrote:
> > On Fri, Feb 07, 2020 at 07:50:36PM +0530, Anshuman Gupta wrote:
> > > Updated version after rebase and fixing few comments.
> > > 
> > > Anshuman Gupta (6):
> > >   drm/i915: Iterate over pipe and skip the disabled one
> > >   drm/i915: Remove (pipe == crtc->index) assumption
> > >   drm/i915: Fix broken transcoder err state
> > >   drm/i915: Fix wrongly populated plane possible_crtcs bit mask
> > >   drm/i915: Get right max plane stride
> > >   drm/i915: Add WARN_ON in intel_get_crtc_for_pipe()
> > 
> > Another broken thing I realized recently is due to my
> > commit ee34801cc0e8 ("drm/i915: Prefer to use the pipe to index the ddb
> > entries")
> > 
> > We either need to revert that or always pass s/num_pipes/I915_MAX_PIPES/
> > to skl_ddb_allocation_overlaps() in skl_commit_modeset_enables().
> > The latter may be nicer since I don't really want that silly 'i'
> > usage back. Can you cook up a patch like that as well?
> AFAIU entries[] may have holes inside it as its size is I915_MAX_PIPES,
> though these holes are already initialized with zero and will not harm 
> skl_ddb_allocation_overlaps, is it good a idea to avoid these hole
> as ignore_index bit mask ?

skl_ddb_entries_overlap() should just ignore empty allocations.
And that will anyway happen for any pipe that is not active. So we
don't have to worry about any holes.

-- 
Ville Syrjälä
Intel