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Re: [PATCH v5 4/4] drm/fence: add out-fences support

From Gustavo Padovan <gustavo.padovan@collabora.com>
Newsgroups linux.kernel
Subject Re: [PATCH v5 4/4] drm/fence: add out-fences support
Date 2016-10-20 18:00 +0200
Message-ID <sunV7-161-29@gated-at.bofh.it> (permalink)
References <sumZ3-wo-3@gated-at.bofh.it> <sumZ3-wo-21@gated-at.bofh.it> <sunBL-ZF-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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2016-10-20 Ville Syrjälä <ville.syrjala@linux.intel.com>:

> On Thu, Oct 20, 2016 at 12:50:05PM -0200, Gustavo Padovan wrote:
> > From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> > 
> > Support DRM out-fences by creating a sync_file with a fence for each CRTC
> > that sets the OUT_FENCE_PTR property.
> 
> I still maintain the out fence should also be per fb (well, per plane
> since we can't add it to fbs). Otherwise it's not going to be at all
> useful if you do fps>vrefresh and don't include the same set of planes
> in every atomic ioctl, eg. if you only ever include ones that are
> somehow dirty.

How would the kernel signal these dirty planes then? Right now we signal
at the vblank.

Gustavo

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Thread

[PATCH v5 0/4] drm: add explicit fencing Gustavo Padovan <gustavo@padovan.org> - 2016-10-20 17:00 +0200
  [PATCH v5 4/4] drm/fence: add out-fences support Gustavo Padovan <gustavo@padovan.org> - 2016-10-20 17:00 +0200
    Re: [PATCH v5 4/4] drm/fence: add out-fences support Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-10-20 17:40 +0200
      Re: [PATCH v5 4/4] drm/fence: add out-fences support Gustavo Padovan <gustavo.padovan@collabora.com> - 2016-10-20 18:00 +0200
        Re: [PATCH v5 4/4] drm/fence: add out-fences support Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-10-20 18:40 +0200
          Re: [PATCH v5 4/4] drm/fence: add out-fences support Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-10-20 21:20 +0200
            Re: [PATCH v5 4/4] drm/fence: add out-fences support Daniel Vetter <daniel@ffwll.ch> - 2016-10-21 15:00 +0200
              Re: [PATCH v5 4/4] drm/fence: add out-fences support Gustavo Padovan <gustavo@padovan.org> - 2016-10-21 15:10 +0200
    Re: [PATCH v5 4/4] drm/fence: add out-fences support Brian Starkey <brian.starkey@arm.com> - 2016-10-20 19:50 +0200
      Re: [PATCH v5 4/4] drm/fence: add out-fences support Gustavo Padovan <gustavo@padovan.org> - 2016-10-20 22:40 +0200
        Re: [PATCH v5 4/4] drm/fence: add out-fences support Brian Starkey <brian.starkey@arm.com> - 2016-10-21 13:00 +0200
          Re: [PATCH v5 4/4] drm/fence: add out-fences support Daniel Vetter <daniel@ffwll.ch> - 2016-10-21 15:10 +0200
    Re: [PATCH v5 4/4] drm/fence: add out-fences support Brian Starkey <brian.starkey@arm.com> - 2016-10-21 17:50 +0200
  Re: [PATCH v5 0/4] drm: add explicit fencing Daniel Vetter <daniel@ffwll.ch> - 2016-10-21 15:10 +0200

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