drm/i915: call drm_handle_vblank before finish_page_flip
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 2 Oct 2012 15:54:35 +0000 (17:54 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 17 Jan 2013 16:51:17 +0000 (08:51 -0800)
commit1d35b4e271f56cad111b7150a1de57954e441765
treefdbf04d0b1644a435be53f89ab264397312bd813
parent77f0c3b4713f398e28461c7bfd5fe69126a6edf7
drm/i915: call drm_handle_vblank before finish_page_flip

commit 74d44445afb9f50126eba052adeb89827cee88f3 upstream.

... since finish_page_flip needs the vblank timestamp generated
in drm_handle_vblank. Somehow all the gmch platforms get it right,
but all the pch platform irq handlers get is wrong. Hooray for copy&
pasting!

Currently this gets papered over by a gross hack in finish_page_flip.
A second patch will remove that.

Note that without this, the new timestamp sanity checks in flip_test
occasionally get tripped up, hence the cc: stable tag.

Reviewed-by: mario.kleiner@tuebingen.mpg.de
Tested-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[bwh: Backported to 3.2: no loop over pipes in ivybridge_irq_handler(),
 so make a similar change to that in ironlake_irq_handler()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/i915/i915_irq.c