From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 18 Oct 2012 14:51:01 +0000 (+0200)
Subject: sched, numa, mm, MIPS/thp: Add pmd_pgprot() implementation
X-Git-Tag: next-20121029~34^2^2~23
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=536165ead34b12ec342fa532532a1bc5857b3aee;p=karo-tx-linux.git

sched, numa, mm, MIPS/thp: Add pmd_pgprot() implementation

Add the pmd_pgprot() method that will be needed
by the new NUMA code.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index c02158be836c..bbe4cda10cd0 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -89,6 +89,8 @@ static inline int is_zero_pfn(unsigned long pfn)
 
 extern void paging_init(void);
 
+#define pmd_pgprot(x)		__pgprot(pmd_val(x) & ~_PAGE_CHG_MASK)
+
 /*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.