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[RFC,13/23] ARM: LPAE: define ARCH_LOW_ADDRESS_LIMIT for bootmem

Message ID 1343092165-9470-14-git-send-email-cyril@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Cyril Chemparathy July 24, 2012, 1:09 a.m. UTC 
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@ti.com>
Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
---
 arch/arm/include/asm/memory.h |    2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 7629dfe..c330a23 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -285,6 +285,8 @@  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>