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>