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drm/nvc1: hacky workaround to fix accel issues
author
Ben Skeggs
<bskeggs@redhat.com>
Fri, 28 Oct 2011 00:59:45 +0000
(10:59 +1000)
committer
Ben Skeggs
<bskeggs@redhat.com>
Wed, 9 Nov 2011 23:01:53 +0000
(09:01 +1000)
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
2afd5b1
..
9a5ab61
100644
(file)
--- a/
drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/
drivers/gpu/drm/nouveau/nouveau_state.c
@@
-579,6
+579,14
@@
nouveau_card_init(struct drm_device *dev)
if (ret)
goto out_display_early;
+ /* workaround an odd issue on nvc1 by disabling the device's
+ * nosnoop capability. hopefully won't cause issues until a
+ * better fix is found - assuming there is one...
+ */
+ if (dev_priv->chipset == 0xc1) {
+ nv_mask(dev, 0x00088080, 0x00000800, 0x00000000);
+ }
+
nouveau_pm_init(dev);
ret = engine->vram.init(dev);