diff options
| author | Will Deacon <will.deacon@arm.com> | 2011-02-15 12:42:57 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-02-15 14:20:23 +0000 |
| commit | cae6292b653f5e3308bf2787a54b7dcd2cc7e2b3 (patch) | |
| tree | b9f6847d0cf392a9519800db3b99ea1e9090617e /arch/arm/mm/mmu.c | |
| parent | ad6b9c9d78b9beebef02ac7f566a08db7be3c320 (diff) | |
ARM: 6672/1: LPAE: use phys_addr_t instead of unsigned long in mapping functions
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 physical
addresses when converting from a PFN.
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>
Diffstat (limited to 'arch/arm/mm/mmu.c')
| -rw-r--r-- | arch/arm/mm/mmu.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index f512ad97dafe..e09744e82d50 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -591,7 +591,7 @@ static void __init create_36bit_mapping(struct map_desc *md, pgd_t *pgd; addr = md->virtual; - phys = (unsigned long)__pfn_to_phys(md->pfn); + phys = __pfn_to_phys(md->pfn); length = PAGE_ALIGN(md->length); if (!(cpu_architecture() >= CPU_ARCH_ARMv6 || cpu_is_xsc3())) { @@ -651,7 +651,8 @@ static void __init create_36bit_mapping(struct map_desc *md, */ static void __init create_mapping(struct map_desc *md) { - unsigned long phys, addr, length, end; + unsigned long addr, length, end; + phys_addr_t phys; const struct mem_type *type; pgd_t *pgd; @@ -680,7 +681,7 @@ static void __init create_mapping(struct map_desc *md) } addr = md->virtual & PAGE_MASK; - phys = (unsigned long)__pfn_to_phys(md->pfn); + phys = __pfn_to_phys(md->pfn); length = PAGE_ALIGN(md->length + (md->virtual & ~PAGE_MASK)); if (type->prot_l1 == 0 && ((addr | phys | length) & ~SECTION_MASK)) { |