Re: [PATCH v4] drm: two planes with the same zpos have undefined ordering

2019-09-24 Thread Simon Ser
On Tuesday, September 24, 2019 11:48 AM, Pekka Paalanen wrote: > On Tue, 24 Sep 2019 07:34:30 + > Simon Ser cont...@emersion.fr wrote: > > > On Tuesday, September 24, 2019 10:26 AM, Pekka Paalanen ppaala...@gmail.com > > wrote: > > > > > On Mon, 23 Sep 2019 12:39:20 + > > > Simon Ser co

Re: [PATCH v4] drm: two planes with the same zpos have undefined ordering

2019-09-24 Thread Pekka Paalanen
On Tue, 24 Sep 2019 07:34:30 + Simon Ser wrote: > On Tuesday, September 24, 2019 10:26 AM, Pekka Paalanen > wrote: > > > On Mon, 23 Sep 2019 12:39:20 + > > Simon Ser cont...@emersion.fr wrote: > > > > > Currently the property docs don't specify whether it's okay for two > > > planes

Re: [PATCH v4] drm: two planes with the same zpos have undefined ordering

2019-09-24 Thread Simon Ser
On Tuesday, September 24, 2019 10:26 AM, Pekka Paalanen wrote: > On Mon, 23 Sep 2019 12:39:20 + > Simon Ser cont...@emersion.fr wrote: > > > Currently the property docs don't specify whether it's okay for two planes > > to > > have the same zpos value and what user-space should expect in th

Re: [PATCH v4] drm: two planes with the same zpos have undefined ordering

2019-09-24 Thread Pekka Paalanen
On Mon, 23 Sep 2019 12:39:20 + Simon Ser wrote: > Currently the property docs don't specify whether it's okay for two planes to > have the same zpos value and what user-space should expect in this case. > > The rule mentionned in the past was to disambiguate with object IDs. However > some d

[PATCH v4] drm: two planes with the same zpos have undefined ordering

2019-09-23 Thread Simon Ser
Currently the property docs don't specify whether it's okay for two planes to have the same zpos value and what user-space should expect in this case. The rule mentionned in the past was to disambiguate with object IDs. However some drivers break this rule (that's why the ordering is documented as