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drm/nouveau: disable copy engine on NVAF
author
Henrik Rydberg
<rydberg@euromail.se>
Sat, 4 Aug 2012 06:00:45 +0000
(08:00 +0200)
committer
Ben Skeggs
<bskeggs@redhat.com>
Mon, 13 Aug 2012 23:36:52 +0000
(09:36 +1000)
The copy engine exhibits random memory corruption in at least one case, the
GeForce 320M (nv50, 0xaf) in the MacBookAir3,1.
This patch omits creating the engine for the specific chipset, falling back
to M2MF, which kills the symptoms.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/nouveau_state.c
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diff --git
a/drivers/gpu/drm/nouveau/nouveau_state.c
b/drivers/gpu/drm/nouveau/nouveau_state.c
index
1cdfd6e
..
1866dbb
100644
(file)
--- a/
drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/
drivers/gpu/drm/nouveau/nouveau_state.c
@@
-731,7
+731,6
@@
nouveau_card_init(struct drm_device *dev)
case 0xa3:
case 0xa5:
case 0xa8:
- case 0xaf:
nva3_copy_create(dev);
break;
}