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authorLinus Torvalds <torvalds@linux-foundation.org>2017-08-11 11:44:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-08-11 11:44:18 -0700
commit7eb97ba611f5904abb3e0653b005904d9144c81a (patch)
tree2daa1275e9ee7298a88d53e0913fb363e61b9551 /Documentation
parent2bfc37cdef08844c77f801a1beaa1f4efd3215df (diff)
parentdd0c41f8a7e0babdadc61d5201ac8505a79dec05 (diff)
downloadlinux-stericsson-7eb97ba611f5904abb3e0653b005904d9144c81a.tar.gz
Merge tag 'fbdev-v4.13-rc5' of git://github.com/bzolnier/linux
Pull fbdev fixes from Bartlomiej Zolnierkiewicz: - allow user to disable write combined mapping in efifb driver (Dave Airlie) - fix use after free bugs on driver removal in imxfb driver (Dan Carpenter) - fix unused variable warning in omapfb driver (Arnd Bergmann) * tag 'fbdev-v4.13-rc5' of git://github.com/bzolnier/linux: efifb: allow user to disable write combined mapping. fbdev: omapfb: remove unused variable video: fbdev: imxfb: use after free in imxfb_remove()
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/fb/efifb.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/fb/efifb.txt b/Documentation/fb/efifb.txt
index a59916c29b33..1a85c1bdaf38 100644
--- a/Documentation/fb/efifb.txt
+++ b/Documentation/fb/efifb.txt
@@ -27,5 +27,11 @@ You have to add the following kernel parameters in your elilo.conf:
Macbook Pro 17", iMac 20" :
video=efifb:i20
+Accepted options:
+
+nowc Don't map the framebuffer write combined. This can be used
+ to workaround side-effects and slowdowns on other CPU cores
+ when large amounts of console data are written.
+
--
Edgar Hucek <gimli@dark-green.com>