linux-kernel - [ 35/78] drm/i915: treat src w & h as fixed point in sprite handling code

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Message-Id: <20120411231024.235038330@linuxfoundation.org>
Date:	Wed, 11 Apr 2012 16:10:53 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Jesse Barnes <jbarnes@...tuousgeek.org>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	Daniel Vetter <daniel.vetter@...ll.ch>
Subject: [ 35/78] drm/i915: treat src w & h as fixed point in sprite handling code

3.3-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jesse Barnes <jbarnes@...tuousgeek.org>

commit b4db1e35ac59c144965f517bc575a0d75b60b03f upstream.

This was missed when we converted the source values to 16.16 fixed point.

Signed-off-by: Jesse Barnes <jbarnes@...tuousgeek.org>
Tested-by: Chris Wilson <chris@...is-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/i915/intel_sprite.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -411,6 +411,9 @@ intel_update_plane(struct drm_plane *pla
 
 	old_obj = intel_plane->obj;
 
+	src_w = src_w >> 16;
+	src_h = src_h >> 16;
+
 	/* Pipe must be running... */
 	if (!(I915_READ(PIPECONF(pipe)) & PIPECONF_ENABLE))
 		return -EINVAL;


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