Patchwork [-V3,06/11] arch/powerpc: Make KERN_VIRT_SIZE not dependend on PGTABLE_RANGE

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Submitter Aneesh Kumar K.V
Date July 9, 2012, 1:13 p.m.
Message ID <1341839621-28332-7-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Download mbox | patch
Permalink /patch/169828/
State Changes Requested
Delegated to: Benjamin Herrenschmidt
Headers show

Comments

Aneesh Kumar K.V - July 9, 2012, 1:13 p.m.
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>

As we keep increasing PGTABLE_RANGE we need not increase the virual
map area for kernel.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/pgtable-ppc64.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
Paul Mackerras - July 22, 2012, 11:57 p.m.
On Mon, Jul 09, 2012 at 06:43:36PM +0530, Aneesh Kumar K.V wrote:
> From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
> 
> As we keep increasing PGTABLE_RANGE we need not increase the virual
> map area for kernel.
> 
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

Reviewed-by: Paul Mackerras <paulus@samba.org>

Patch

diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h
index c420561..8af1cf2 100644
--- a/arch/powerpc/include/asm/pgtable-ppc64.h
+++ b/arch/powerpc/include/asm/pgtable-ppc64.h
@@ -41,7 +41,7 @@ 
 #else
 #define KERN_VIRT_START ASM_CONST(0xD000000000000000)
 #endif
-#define KERN_VIRT_SIZE	PGTABLE_RANGE
+#define KERN_VIRT_SIZE	ASM_CONST(0x0000100000000000)
 
 /*
  * The vmalloc space starts at the beginning of that region, and