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Re: [RFC 6/8] drm/fence: create DRM_MODE_ATOMIC_OUT_FENCE flag

From Rob Clark <robdclark@gmail.com>
Newsgroups linux.kernel
Subject Re: [RFC 6/8] drm/fence: create DRM_MODE_ATOMIC_OUT_FENCE flag
Date 2016-04-15 03:50 +0200
Message-ID <ro13r-3fm-3@gated-at.bofh.it> (permalink)
References <ro0K6-37f-3@gated-at.bofh.it> <ro0K6-37f-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Apr 14, 2016 at 9:29 PM, Gustavo Padovan <gustavo@padovan.org> wrote:
> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
>
> This flag tells drm_atomic_ioctl that we want to get a per-crtc out-fence
> fd back.
>
> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> ---
>  include/uapi/drm/drm_mode.h | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
> index 7a7856e..39905cc 100644
> --- a/include/uapi/drm/drm_mode.h
> +++ b/include/uapi/drm/drm_mode.h
> @@ -582,13 +582,15 @@ struct drm_mode_destroy_dumb {
>  #define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
>  #define DRM_MODE_ATOMIC_NONBLOCK  0x0200
>  #define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400
> +#define DRM_MODE_ATOMIC_OUT_FENCE 0x0800
>
>  #define DRM_MODE_ATOMIC_FLAGS (\
>                 DRM_MODE_PAGE_FLIP_EVENT |\
>                 DRM_MODE_PAGE_FLIP_ASYNC |\
>                 DRM_MODE_ATOMIC_TEST_ONLY |\
>                 DRM_MODE_ATOMIC_NONBLOCK |\
> -               DRM_MODE_ATOMIC_ALLOW_MODESET)
> +               DRM_MODE_ATOMIC_ALLOW_MODESET |\
> +               DRM_MODE_ATOMIC_OUT_FENCE)

just to be pedantic / bisectable, perhaps this should be squashed in
to patch that actually starts using this flag?  Otherwise there is an
intermediate state in git where the flag is accepted but ignored..

BR,
-R


>  struct drm_mode_atomic {
>         __u32 flags;
> --
> 2.5.5
>

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Thread

[RFC 0/8] drm: explicit fencing support Gustavo Padovan <gustavo@padovan.org> - 2016-04-15 03:30 +0200
  [RFC 1/8] dma-buf/fence: add fence_collection fences Gustavo Padovan <gustavo@padovan.org> - 2016-04-15 03:30 +0200
    Re: [RFC 1/8] dma-buf/fence: add fence_collection fences Daniel Vetter <daniel@ffwll.ch> - 2016-04-15 10:10 +0200
      Re: [RFC 1/8] dma-buf/fence: add fence_collection fences Daniel Vetter <daniel@ffwll.ch> - 2016-04-15 13:50 +0200
  [RFC 3/8] drm/fence: allow fence waiting to be interrupted by userspace Gustavo Padovan <gustavo@padovan.org> - 2016-04-15 03:30 +0200
    Re: [RFC 3/8] drm/fence: allow fence waiting to be interrupted by  userspace Daniel Vetter <daniel@ffwll.ch> - 2016-04-15 09:50 +0200
  [RFC 6/8] drm/fence: create DRM_MODE_ATOMIC_OUT_FENCE flag Gustavo Padovan <gustavo@padovan.org> - 2016-04-15 03:30 +0200
    Re: [RFC 6/8] drm/fence: create DRM_MODE_ATOMIC_OUT_FENCE flag Rob Clark <robdclark@gmail.com> - 2016-04-15 03:50 +0200
  [RFC 2/8] dma-buf/sync_file: add sync_file_fences_get() Gustavo Padovan <gustavo@padovan.org> - 2016-04-15 03:40 +0200
    Re: [RFC 2/8] dma-buf/sync_file: add sync_file_fences_get() Daniel Vetter <daniel@ffwll.ch> - 2016-04-15 10:00 +0200
  [RFC 5/8] drm/fence: add fence to drm_pending_event Gustavo Padovan <gustavo@padovan.org> - 2016-04-15 03:40 +0200
    Re: [RFC 5/8] drm/fence: add fence to drm_pending_event Daniel Vetter <daniel@ffwll.ch> - 2016-04-15 10:20 +0200
  [RFC 8/8] drm/fence: add out-fences support Gustavo Padovan <gustavo@padovan.org> - 2016-04-15 03:40 +0200
    Re: [RFC 8/8] drm/fence: add out-fences support Daniel Vetter <daniel@ffwll.ch> - 2016-04-15 10:20 +0200
  [RFC 4/8] drm/fence: add in-fences support Gustavo Padovan <gustavo@padovan.org> - 2016-04-15 03:40 +0200
    Re: [RFC 4/8] drm/fence: add in-fences support Daniel Vetter <daniel@ffwll.ch> - 2016-04-15 10:10 +0200
    Re: [RFC 4/8] drm/fence: add in-fences support Daniel Vetter <daniel@ffwll.ch> - 2016-04-15 10:20 +0200
  [RFC 7/8] drm/fence: create per-crtc sync_timeline Gustavo Padovan <gustavo@padovan.org> - 2016-04-15 03:40 +0200

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