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

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

[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