Skip to content
Snippets Groups Projects
user avatar
Andy Lutomirski authored
Running fbcon on an uncached framebuffer is remarkably slow.  So try
to enable write combining in efifb.

Without this patch, it takes 5.8 seconds from efifb probe to i915
probe (default options; no plymouth or quiet mode).  With this patch,
it only takes 1.7 seconds.  That means we wasted over 4 seconds just
writing to UC memory.

Signed-off-by: default avatarAndy Lutomirski <luto@mit.edu>
Signed-off-by: default avatarPeter Jones <pjones@redhat.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
3c004b4f
History