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>
git-mirror · Feb 21, 2011 · f60892d · f60892d
1 parent e33b9d0
commit f60892d
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Showing 2 changed files with 4 additions and 3 deletions.
diff --git 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
@@ -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;
 
 	/*