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(parent: 0879750) | patch
x86: make ioremap() UC by default
authorIngo Molnar <mingo@elte.hu>
Wed, 30 Jan 2008 12:34:09 +0000 (13:34 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 30 Jan 2008 12:34:09 +0000 (13:34 +0100)
commit9af993a92623e022c176459fa6607a564b9a7eaf
treeda13fbc9989fde0f8dddf7ae6dd60fc7e4dded6btree | snapshot (tar.gz zip)
parent0879750f5d75dee0546316b7b0e83fb6cd258ad7commit | diff
x86: make ioremap() UC by default

Yes! A mere 120 c_p_a() fixing and rewriting patches later,
we are now confident that we can enable UC by default for
ioremap(), on x86 too.

Every other architectures was doing this already. Doing so
makes Linux more robust against MTRR mixups (which might go
unnoticed if BIOS writers test other OSs only - where PAT
might override bad MTRRs defaults).

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
include/asm-x86/io_64.h diff | blob | blame | history