[PATCH v2 12/22] ARM: LPAE: define ARCH_LOW_ADDRESS_LIMIT for bootmem

From: Cyril Chemparathy
Date: Fri Aug 10 2012 - 21:26:56 EST


This patch adds an architecture defined override for ARCH_LOW_ADDRESS_LIMIT.
On PAE systems, the absence of this override causes bootmem to incorrectly
limit itself to 32-bit addressable physical memory.

Signed-off-by: Cyril Chemparathy <cyril@xxxxxx>
Signed-off-by: Vitaly Andrianov <vitalya@xxxxxx>
---
arch/arm/include/asm/memory.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index dc5fbf3..64db5a4 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -292,6 +292,8 @@ static inline __deprecated void *bus_to_virt(unsigned long x)
#define arch_is_coherent() 0
#endif

+#define ARCH_LOW_ADDRESS_LIMIT PHYS_MASK
+
#endif

#include <asm-generic/memory_model.h>
--
1.7.9.5

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