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ARM: 7077/1: LPAE: Use a mask for physical addresses in page table entries

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With LPAE, the physical address mask is 40-bit while the page table
entry is 64-bit. This patch introduces PHYS_MASK for the 2-level page
table format, defined as ~0UL.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Catalin Marinas
2011-09-05 17:52:36 +01:00
committed by Russell King
parent 442e70c0b3
commit d7c5d0dcff
2 changed files with 5 additions and 3 deletions
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2
arch/arm/include/asm/pgtable-2level-hwdef.h
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@@ -88,4 +88,6 @@
#define PTE_SMALL_AP_URO_SRW (_AT(pteval_t, 0xaa) << 4)
#define PTE_SMALL_AP_URW_SRW (_AT(pteval_t, 0xff) << 4)
#define PHYS_MASK (~0UL)
#endif