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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-11-16 00:16:01 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-11-26 20:45:46 +0000
commit97092e0c56830457af0639f6bd904537a150ea4a (patch)
tree5452905cff4e52465329a10de6ab8add2bd1de5a
parent6e4beb5e682953212da48ebb9e5c90408b8d38ae (diff)
ARM: pgtable: use phys_addr_t for physical addresses
Ensure that physical addresses are typed as phys_addr_t Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/include/asm/pgalloc.h8
-rw-r--r--arch/arm/include/asm/pgtable.h2
-rw-r--r--arch/arm/mm/mmu.c7
3 files changed, 10 insertions, 7 deletions
diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index e9c39352cee..1f1064b519c 100644
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -103,8 +103,10 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
__free_page(pte);
}
-static inline void __pmd_populate(pmd_t *pmdp, unsigned long pmdval)
+static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
+ unsigned long prot)
{
+ unsigned long pmdval = pte | prot;
pmdp[0] = __pmd(pmdval);
pmdp[1] = __pmd(pmdval + 256 * sizeof(pte_t));
flush_pmd_entry(pmdp);
@@ -126,13 +128,13 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep)
* address of the PTE table
*/
pte_ptr -= PTRS_PER_PTE * sizeof(void *);
- __pmd_populate(pmdp, __pa(pte_ptr) | _PAGE_KERNEL_TABLE);
+ __pmd_populate(pmdp, __pa(pte_ptr), _PAGE_KERNEL_TABLE);
}
static inline void
pmd_populate(struct mm_struct *mm, pmd_t *pmdp, pgtable_t ptep)
{
- __pmd_populate(pmdp, page_to_pfn(ptep) << PAGE_SHIFT | _PAGE_USER_TABLE);
+ __pmd_populate(pmdp, page_to_phys(ptep), _PAGE_USER_TABLE);
}
#define pmd_pgtable(pmd) pmd_page(pmd)
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index d00ef7ecee6..30b3a07dd99 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -322,7 +322,7 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
static inline pte_t *pmd_page_vaddr(pmd_t pmd)
{
- unsigned long ptr;
+ phys_addr_t ptr;
ptr = pmd_val(pmd) & ~(PTRS_PER_PTE * sizeof(void *) - 1);
ptr += PTRS_PER_PTE * sizeof(void *);
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 72ad3e1f56c..9568f8632ae 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -535,7 +535,7 @@ static pte_t * __init early_pte_alloc(pmd_t *pmd, unsigned long addr, unsigned l
{
if (pmd_none(*pmd)) {
pte_t *pte = early_alloc(2 * PTRS_PER_PTE * sizeof(pte_t));
- __pmd_populate(pmd, __pa(pte) | prot);
+ __pmd_populate(pmd, __pa(pte), prot);
}
BUG_ON(pmd_bad(*pmd));
return pte_offset_kernel(pmd, addr);
@@ -553,7 +553,7 @@ static void __init alloc_init_pte(pmd_t *pmd, unsigned long addr,
}
static void __init alloc_init_section(pgd_t *pgd, unsigned long addr,
- unsigned long end, unsigned long phys,
+ unsigned long end, phys_addr_t phys,
const struct mem_type *type)
{
pmd_t *pmd = pmd_offset(pgd, addr);
@@ -588,7 +588,8 @@ static void __init alloc_init_section(pgd_t *pgd, unsigned long addr,
static void __init create_36bit_mapping(struct map_desc *md,
const struct mem_type *type)
{
- unsigned long phys, addr, length, end;
+ unsigned long addr, length, end;
+ phys_addr_t phys;
pgd_t *pgd;
addr = md->virtual;