From 541f29aad766b6c7b911a7d900d952744369bf53 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=3D=3Futf-8=3Fq=3FMichel=5FD=3DC3=3DA4nzer=3F=3D?=
 <michel@tungstengraphics.com>
Date: Tue, 24 Oct 2006 23:38:54 +1000
Subject: [PATCH] drm: DRM_I915_VBLANK_SWAP ioctl: Take drm_vblank_seq_type_t
 instead

of pipe number.

Handle relative as well as absolute target sequence numbers.

Return error if target sequence has already passed, so userspace can deal with
this situation as it sees fit.

On success, return the sequence number of the vertical blank when the buffer
swap is expected to take place.

Also add DRM_IOCTL_I915_VBLANK_SWAP definition for userspace code that may want
to use ioctl() instead of drmCommandWriteRead().

Signed-off-by: Dave Airlie <airlied@linux.ie>
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