x86: PAT use reserve free memtype in set_memory_uc

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Use reserve_memtype and free_memtype interfaces in set_memory_uc/set_memory_wb
interfaces to avoid aliasing.
Usage model of set_memory_uc and set_memory_wb is for RAM memory and users
will first call set_memory_uc and call set_memory_wb after use to reset the
attribute.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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venkatesh.pallipadi@intel.com 2008-03-18 17:00:18 -07:00 • committed by Ingo Molnar

parent d7677d4034

commit 1219333dfd

3 changed files with 23 additions and 4 deletions

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4

arch/x86/mm/ioremap.c

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21

arch/x86/mm/pageattr.c

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2

include/asm-x86/cacheflush.h

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