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authorBen Skeggs <bskeggs@redhat.com>2012-09-26 06:43:10 +0400
committerBen Skeggs <bskeggs@redhat.com>2012-09-26 06:43:10 +0400
commit79eee7aa0d4de5a42331c63d3c7c735248b53d0c (patch)
tree6c5cd081e1d2181d4f9ef3ac33481e3e049ec80a /drivers/gpu
parentc7ead11d0b498984169871fd03c57441862ec3f3 (diff)
downloadlinux-79eee7aa0d4de5a42331c63d3c7c735248b53d0c.tar.xz
drm/nvc0/ltcg: mask off intr 0x10
NVIDIA do that at startup too on Fermi, so perhaps the heap of 0x10 intrs we receive are normal and we can ignore them. On Kepler NVIDIA *don't* do this, but the hardware appears to come up with the bit masked off by default - so that's probably why :) This should silence some interrupt spam seen on Fermi+ boards. Backported patch from reworked nouveau kernel tree. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nvc0_fb.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_fb.c b/drivers/gpu/drm/nouveau/nvc0_fb.c
index f704e942372e..f376c39310df 100644
--- a/drivers/gpu/drm/nouveau/nvc0_fb.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fb.c
@@ -124,6 +124,7 @@ nvc0_fb_init(struct drm_device *dev)
priv = dev_priv->engine.fb.priv;
nv_wr32(dev, 0x100c10, priv->r100c10 >> 8);
+ nv_mask(dev, 0x17e820, 0x00100000, 0x00000000); /* NV_PLTCG_INTR_EN */
return 0;
}