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authorWill Deacon <will.deacon@arm.com>2011-02-15 12:44:10 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-02-21 19:24:13 +0000
commitf60892d3e36dcdd0d9f30db05beae7a446a93f28 (patch)
tree98e44cc9b390303db2b2405764f4105773178ba6
parente33b9d0878ff6b8a543b3423c3019a5dbbf5689a (diff)
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ARM: 6673/1: LPAE: use phys_addr_t instead of unsigned long for start of membanks
The unsigned long datatype is not sufficient for mapping physical addresses >= 4GB. This patch ensures that the phys_addr_t datatype is used to represent the start address of a membank, which may reside above the 4GB boundary. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/include/asm/setup.h2
-rw-r--r--arch/arm/kernel/setup.c5
2 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h
index f1e5a9b..5092118 100644
--- a/arch/arm/include/asm/setup.h
+++ b/arch/arm/include/asm/setup.h
@@ -199,7 +199,7 @@ static struct tagtable __tagtable_##fn __tag = { tag, fn }
#endif
struct membank {
- unsigned long start;
+ phys_addr_t start;
unsigned long size;
unsigned int highmem;
};
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 77af580..9d4a844 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -442,7 +442,7 @@ static struct machine_desc * __init setup_machine(unsigned int nr)
return list;
}
-static int __init arm_add_memory(unsigned long start, unsigned long size)
+static int __init arm_add_memory(phys_addr_t start, unsigned long size)
{
struct membank *bank = &meminfo.bank[meminfo.nr_banks];
@@ -478,7 +478,8 @@ static int __init arm_add_memory(unsigned long start, unsigned long size)
static int __init early_mem(char *p)
{
static int usermem __initdata = 0;
- unsigned long size, start;
+ unsigned long size;
+ phys_addr_t start;
char *endp;
/*