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powerpc/mm: Add 64TB support

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Increase max addressable range to 64TB. This is not tested on
real hardware yet.

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Aneesh Kumar K.V
2012-09-10 02:52:55 +00:00
committed by Benjamin Herrenschmidt
parent 735cafc32b
commit 048ee0993e
7 changed files with 54 additions and 16 deletions
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4
arch/powerpc/include/asm/processor.h
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@@ -97,8 +97,8 @@ extern struct task_struct *last_task_used_spe;
#endif
#ifdef CONFIG_PPC64
/* 64-bit user address space is 44-bits (16TB user VM) */
#define TASK_SIZE_USER64 (0x0000100000000000UL)
/* 64-bit user address space is 46-bits (64TB user VM) */
#define TASK_SIZE_USER64 (0x0000400000000000UL)
/*
* 32-bit user address space is 4GB - 1 page