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Commit 3c004b4f authored by Andy Lutomirski's avatar Andy Lutomirski Committed by Paul Mundt
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efifb: Enable write-combining



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>
parent 0057f180
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