From f483a853b0b932a1d75eb27a1dcbd732862260db Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 8 Nov 2012 16:00:16 +0000 Subject: arm64: mm: fix booting on systems with no memory below 4GB Booting on a system with all of its memory above the 4GB boundary breaks for two reasons: (1) We still try to create a non-empty DMA32 zone (2) no-bootmem limits allocations to 0xffffffff This patch fixes these issues for ARM64. Tested-by: Marc Zyngier Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/processor.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm64/include') diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 5d810044feda..77f696c14339 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -43,6 +43,8 @@ #else #define STACK_TOP STACK_TOP_MAX #endif /* CONFIG_COMPAT */ + +#define ARCH_LOW_ADDRESS_LIMIT PHYS_MASK #endif /* __KERNEL__ */ struct debug_info { -- cgit v1.2.3