Hello, I little up in this topic. If generic z-order patches can't land into drm core, I wille have to resend the patch to enable it within STI driver: https://lists.freedesktop.org/archives/dri-devel/2016-January/098140.html Regards, Benjamin 2016-04-01 14:48 GMT+02:00 Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx>: > This patch adds support for generic plane's zpos property property with > well-defined semantics: > - added zpos properties to plane and plane state structures > - added helpers for normalizing zpos properties of given set of planes > - well defined semantics: planes are sorted by zpos values and then plane > id value if zpos equals > > Normalized zpos values are calculated automatically when generic > muttable zpos property has been initialized. Drivers can simply use > plane_state->normalized_zpos in their atomic_check and/or plane_update > callbacks without any additional calls to DRM core. > > Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> > > Compare to Marek's original patch zpos property is now specific to each > plane and no more to the core. > Normalize function take care of the range of per plane defined range > before set normalized_zpos. > > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx> > --- > Documentation/DocBook/gpu.tmpl | 10 ++ > drivers/gpu/drm/Makefile | 2 +- > drivers/gpu/drm/drm_atomic_helper.c | 6 + > drivers/gpu/drm/drm_blend.c | 283 ++++++++++++++++++++++++++++++++++++ > drivers/gpu/drm/drm_crtc_internal.h | 3 + > include/drm/drm_crtc.h | 25 ++++ > 6 files changed, 328 insertions(+), 1 deletion(-) > create mode 100644 drivers/gpu/drm/drm_blend.c > > diff --git a/Documentation/DocBook/gpu.tmpl b/Documentation/DocBook/gpu.tmpl > index 1692c4d..b7a5161 100644 > --- a/Documentation/DocBook/gpu.tmpl > +++ b/Documentation/DocBook/gpu.tmpl > @@ -2147,6 +2147,16 @@ void intel_crt_init(struct drm_device *dev) > the underlying hardware).</td> > </tr> > <tr> > + <td valign="top" > "zpos" </td> > + <td valign="top" >RANGE</td> > + <td valign="top" >Min= driver dependent, Max= driver dependent</td> > + <td valign="top" >Plane</td> > + <td valign="top" >Plane's 'z' position during blending operation (0 > for background, highest for frontmost). > + If two planes assigned to same CRTC have equal zpos values, the > plane with higher plane > + id is treated as closer to front. Can be IMMUTABLE if driver doesn't > support changing > + planes' order. Exact value range is driver dependent.</td> > + </tr> > + <tr> > <td rowspan="20" valign="top" >i915</td> > <td rowspan="2" valign="top" >Generic</td> > <td valign="top" >"Broadcast RGB"</td> > diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile > index 6eb94fc..18dc563 100644 > --- a/drivers/gpu/drm/Makefile > +++ b/drivers/gpu/drm/Makefile > @@ -2,7 +2,7 @@ > # Makefile for the drm device driver. This driver provides support for the -- Benjamin Gaignard Graphic Working Group Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
