On Mon, May 30, 2016 at 11:36:06AM +0200, Maarten Lankhorst wrote:
> Op 30-05-16 om 11:24 schreef Daniel Vetter:
> > On Mon, May 30, 2016 at 10:15:14AM +0200, Maarten Lankhorst wrote:
> >> Op 29-05-16 om 20:35 schreef Daniel Vetter:
> >>> Committing with block it is not.
> >>>
> >>> Thanks to the fixed up vblank event handling we can just use the
> >>> helper support for nonblocking commits now.
> >>>
> >>> Cc: Carlos Palminha <palmi...@synopsys.com>
> >>> Cc: Alexey Brodkin <abrod...@synopsys.com>
> >>> Cc: linux-snps-...@lists.infradead.org
> >>> Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
> >> This breaks page flip on arc, it uses drm_atomic_helper_page_flip.
> > How exactly does this break page_flip? Note that the commit to implement
> > generic nonblocking commit in drm_atomic_helper_commit is _before_ this
> > patch in the series.
> > -Daniel
>
> This is patch 15/16, I found this in patch 21/26:
>
> @@ -1147,8 +1206,11 @@ int drm_atomic_helper_commit(struct drm_device *dev,
> {
> int ret;
>
> - if (nonblock)
> - return -EBUSY;
Oh right, I mixed things up. Most of the prep work is for drm event
handling. We need to do that _before_ the non-blocking commit lands for
the drivers that just directly reuse drm_atomic_helper_commit, since the
nonblocking helpers will time out when drm events don't work.
But this one indeed should only happen after that commit. I'll reorder.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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