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authorIlia Mirkin <imirkin@alum.mit.edu>2015-06-29 11:07:20 +0300
committerBen Skeggs <bskeggs@redhat.com>2015-07-27 11:56:10 +0300
commitd108142c0840ce389cd9898aa76943b3fb430b83 (patch)
treef9813092cb8d50c633c806a81effa79f86dc1286 /drivers/gpu
parentd31b11d85814ff669cfeb93c0f85b9d659a85ef8 (diff)
downloadlinux-d108142c0840ce389cd9898aa76943b3fb430b83.tar.xz
drm/nouveau/fbcon/nv11-: correctly account for ring space usage
The RING_SPACE macro accounts how much space is used up so it's important to ask it for the right amount. Incorrect accounting of this can cause page faults down the line as writes are attempted outside of the ring. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Cc: stable@vger.kernel.org Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nv04_fbcon.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_fbcon.c b/drivers/gpu/drm/nouveau/nv04_fbcon.c
index 4ef602c5469d..495c57644ced 100644
--- a/drivers/gpu/drm/nouveau/nv04_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nv04_fbcon.c
@@ -203,7 +203,7 @@ nv04_fbcon_accel_init(struct fb_info *info)
if (ret)
return ret;
- if (RING_SPACE(chan, 49)) {
+ if (RING_SPACE(chan, 49 + (device->info.chipset >= 0x11 ? 4 : 0))) {
nouveau_fbcon_gpu_lockup(info);
return 0;
}