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powerpc/mm: Add option for non-atomic PTE updates to ppc64

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ppc32 has it already, add it to ppc64 as a preliminary for adding
support for Book3E 64-bit support

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt
2009-03-19 19:34:15 +00:00
parent ff7c660092
commit a033a487f8
2 changed files with 13 additions and 1 deletions
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arch/powerpc/include/asm/pte-hash64.h
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@@ -41,6 +41,8 @@
#define _PTEIDX_SECONDARY 0x8
#define _PTEIDX_GROUP_IX 0x7
/* Hash table based platforms need atomic updates of the linux PTE */
#define PTE_ATOMIC_UPDATES 1
#ifdef CONFIG_PPC_64K_PAGES
#include <asm/pte-hash64-64k.h>