[Intel-gfx] [PATCH 2/2] drm: use page flip event to signal flip completion

[Kristian Høgsberg]

2009/11/19 Jesse Barnes <jbarnes at virtuousgeek.org>:
> From fa621056b43d24ca97b61863c8566ac12696ce25 Mon Sep 17 00:00:00 2001
> From: Jesse Barnes <jbarnes at virtuousgeek.org>
> Date: Thu, 19 Nov 2009 10:25:46 -0800
> Subject: [PATCH 2/2] drm: use page flip event to signal flip completion
>
> We don't actually know which frame number the flip will complete on, so
> userspace needs a specific flip notification to tell it when the last flip
> completed.
>
> Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>

Acked-by: Kristian Høgsberg <krh at bitplanet.net>

> ---
>  drivers/gpu/drm/drm_crtc.c |    2 +-
>  include/drm/drm.h          |    1 +
>  2 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
> index ac2fa19..3bc870d 100644
> --- a/drivers/gpu/drm/drm_crtc.c
> +++ b/drivers/gpu/drm/drm_crtc.c
> @@ -2527,7 +2527,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
>                        goto out;
>                }
>
> -               e->event.base.type = DRM_EVENT_VBLANK;
> +               e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
>                e->event.base.length = sizeof e->event;
>                e->event.user_data = page_flip->user_data;
>                e->base.event = &e->event.base;
> diff --git a/include/drm/drm.h b/include/drm/drm.h
> index 3919a4f..309d0a5 100644
> --- a/include/drm/drm.h
> +++ b/include/drm/drm.h
> @@ -718,6 +718,7 @@ struct drm_event {
>  };
>
>  #define DRM_EVENT_VBLANK 0x01
> +#define DRM_EVENT_FLIP_COMPLETE 0x02
>
>  struct drm_event_vblank {
>        struct drm_event base;
> --
> 1.6.1.3
>
>