From: Liu Ping Fan <kernelfans@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Paul Mackerras <paulus@samba.org>
Subject: [PATCH 1/2] powerpc: mm: use macro PGTABLE_EADDR_SIZE instead of digital
Date: Thu, 21 Nov 2013 10:17:54 +0800 [thread overview]
Message-ID: <1385000275-5988-1-git-send-email-pingfank@linux.vnet.ibm.com> (raw)
In case of extending the eaddr in future, use this macro
PGTABLE_EADDR_SIZE to ease the maintenance of the code.
Signed-off-by: Liu Ping Fan <pingfank@linux.vnet.ibm.com>
---
arch/powerpc/mm/slb_low.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
index 17aa6df..e0b3cf4 100644
--- a/arch/powerpc/mm/slb_low.S
+++ b/arch/powerpc/mm/slb_low.S
@@ -35,7 +35,7 @@ _GLOBAL(slb_allocate_realmode)
* check for bad kernel/user address
* (ea & ~REGION_MASK) >= PGTABLE_RANGE
*/
- rldicr. r9,r3,4,(63 - 46 - 4)
+ rldicr. r9,r3,4,(63 - PGTABLE_EADDR_SIZE - 4)
bne- 8f
srdi r9,r3,60 /* get region */
--
1.8.1.4
next reply other threads:[~2013-11-21 2:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-21 2:17 Liu Ping Fan [this message]
2013-11-21 2:17 ` [PATCH 2/2] powerpc: mm: change pgtable index size for 64K page Liu Ping Fan
2013-11-21 22:11 ` Paul Mackerras
2013-11-21 23:46 ` Benjamin Herrenschmidt
2013-11-22 2:06 ` Michael Ellerman
2014-04-30 5:30 ` [PATCH 1/2] powerpc: mm: use macro PGTABLE_EADDR_SIZE instead of digital Aneesh Kumar K.V
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