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authorIngo Molnar <mingo@elte.hu>2008-01-30 13:34:09 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:34:09 +0100
commit9af993a92623e022c176459fa6607a564b9a7eaf (patch)
treeda13fbc9989fde0f8dddf7ae6dd60fc7e4dded6b /include
parent0879750f5d75dee0546316b7b0e83fb6cd258ad7 (diff)
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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>
Diffstat (limited to 'include')
-rw-r--r--include/asm-x86/io_64.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86/io_64.h b/include/asm-x86/io_64.h
index ee7a5c95596..f64a59cc396 100644
--- a/include/asm-x86/io_64.h
+++ b/include/asm-x86/io_64.h
@@ -166,7 +166,7 @@ extern void __iomem *ioremap_cache(unsigned long offset, unsigned long size);
*/
static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
{
- return ioremap_cache(offset, size);
+ return ioremap_nocache(offset, size);
}
extern void iounmap(volatile void __iomem *addr);