linux-kernel - [150/165] drm/radeon/kms: fix incorrect comparison in cayman setup

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Date:	Wed, 01 Jun 2011 17:12:00 +0900
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Dave Airlie <airlied@...hat.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [150/165] drm/radeon/kms: fix incorrect comparison in cayman setup

2.6.39-stable review patch.  If anyone has any objections, please let us know.

------------------
 code.
Content-Length: 1043
Lines: 27

From: Dave Airlie <airlied@...hat.com>

commit c289cff10a265ec4afe4396425297ff979a840b5 upstream.

This was leading to a bogus value being programmed to the backend
routing register.

Reviewed-by: Alex Deucher <alexdeucher@...il.com>
Signed-off-by: Dave Airlie <airlied@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/gpu/drm/radeon/ni.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -417,7 +417,7 @@ static u32 cayman_get_tile_pipe_to_backe
 		num_shader_engines = 1;
 	if (num_shader_engines > rdev->config.cayman.max_shader_engines)
 		num_shader_engines = rdev->config.cayman.max_shader_engines;
-	if (num_backends_per_asic > num_shader_engines)
+	if (num_backends_per_asic < num_shader_engines)
 		num_backends_per_asic = num_shader_engines;
 	if (num_backends_per_asic > (rdev->config.cayman.max_backends_per_se * num_shader_engines))
 		num_backends_per_asic = rdev->config.cayman.max_backends_per_se * num_shader_engines;


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