x86: set strong uncacheable where UC is really desired

Browse source

Also use _PAGE_PWT for all the mappings which need uncache mapping.
Instead of existing PAT2 which is UC- (and can be overwritten by MTRRs),
we now use PAT3 which is strong uncacheable.

This makes it consistent with pgprot_noncached()

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

...

This commit is contained in:

Siddha, Suresh B 2008-01-30 13:33:43 +01:00 • committed by Ingo Molnar

parent fbd3bfd87f

commit 4138cc3418

2 changed files with 2 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

arch/x86/mm/ioremap_32.c

View file

2

arch/x86/mm/ioremap_64.c

View file