linux-kernel - [ 187/262] drm/radeon: init lockup timeout on ring init

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Message-Id: <20120928183020.147971545@linuxfoundation.org>
Date:	Fri, 28 Sep 2012 11:51:56 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg KH <gregkh@...uxfoundation.org>, alan@...rguk.ukuu.org.uk,
	Christian König <deathsimple@...afone.de>,
	Michel Dänzer <michel.daenzer@....com>
Subject: [ 187/262] drm/radeon: init lockup timeout on ring init

From: Greg KH <gregkh@...uxfoundation.org>

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

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

From: Christian König <deathsimple@...afone.de>

commit 48c0ac9911839daf188e4a0b6b132ac31050a241 upstream.

Reset the lockup timeout on ring (re-)initialisation.

Otherwise we get error messages like this on gpu resets:
[ 1559.949177] radeon 0000:01:00.0: GPU lockup CP stall for more than 1482270msec

Signed-off-by: Christian König <deathsimple@...afone.de>
Reviewed-by: Michel Dänzer <michel.daenzer@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

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

--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -394,6 +394,7 @@ int radeon_ring_init(struct radeon_devic
 	if (radeon_debugfs_ring_init(rdev, ring)) {
 		DRM_ERROR("Failed to register debugfs file for rings !\n");
 	}
+	radeon_ring_lockup_update(ring);
 	return 0;
 }
 


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