Re: [PATCH v2] drm: two planes with the same zpos have undefined ordering

2019-09-18 Thread Daniel Vetter
On Wed, Sep 18, 2019 at 1:14 PM Marius Vlad wrote: > > > > On 9/17/19 8:24 PM, 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 pas

Re: [PATCH v2] drm: two planes with the same zpos have undefined ordering

2019-09-18 Thread Marius Vlad
On 9/17/19 8:24 PM, 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 drivers break th

[PATCH v2] drm: two planes with the same zpos have undefined ordering

2019-09-17 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