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Diffstat (limited to 'arch/mips/mm/ioremap.c')
-rw-r--r--arch/mips/mm/ioremap.c32
1 files changed, 12 insertions, 20 deletions
diff --git a/arch/mips/mm/ioremap.c b/arch/mips/mm/ioremap.c
index adf352273f6..3101d1db559 100644
--- a/arch/mips/mm/ioremap.c
+++ b/arch/mips/mm/ioremap.c
@@ -55,7 +55,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address,
if (address >= end)
BUG();
do {
- pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+ pte_t * pte = pte_alloc_kernel(pmd, address);
if (!pte)
return -ENOMEM;
remap_area_pte(pte, address, end - address, address + phys_addr, flags);
@@ -77,11 +77,15 @@ static int remap_area_pages(unsigned long address, phys_t phys_addr,
flush_cache_all();
if (address >= end)
BUG();
- spin_lock(&init_mm.page_table_lock);
do {
+ pud_t *pud;
pmd_t *pmd;
- pmd = pmd_alloc(&init_mm, dir, address);
+
error = -ENOMEM;
+ pud = pud_alloc(&init_mm, dir, address);
+ if (!pud)
+ break;
+ pmd = pmd_alloc(&init_mm, pud, address);
if (!pmd)
break;
if (remap_area_pmd(pmd, address, end - address,
@@ -91,21 +95,11 @@ static int remap_area_pages(unsigned long address, phys_t phys_addr,
address = (address + PGDIR_SIZE) & PGDIR_MASK;
dir++;
} while (address && (address < end));
- spin_unlock(&init_mm.page_table_lock);
flush_tlb_all();
return error;
}
/*
- * Allow physical addresses to be fixed up to help 36 bit peripherals.
- */
-phys_t __attribute__ ((weak))
-fixup_bigphys_addr(phys_t phys_addr, phys_t size)
-{
- return phys_addr;
-}
-
-/*
* Generic mapping function (not visible outside):
*/
@@ -121,7 +115,7 @@ fixup_bigphys_addr(phys_t phys_addr, phys_t size)
#define IS_LOW512(addr) (!((phys_t)(addr) & (phys_t) ~0x1fffffffULL))
-void * __ioremap(phys_t phys_addr, phys_t size, unsigned long flags)
+void __iomem * __ioremap(phys_t phys_addr, phys_t size, unsigned long flags)
{
struct vm_struct * area;
unsigned long offset;
@@ -141,7 +135,7 @@ void * __ioremap(phys_t phys_addr, phys_t size, unsigned long flags)
*/
if (IS_LOW512(phys_addr) && IS_LOW512(last_addr) &&
flags == _CACHE_UNCACHED)
- return (void *) KSEG1ADDR(phys_addr);
+ return (void __iomem *) CKSEG1ADDR(phys_addr);
/*
* Don't allow anybody to remap normal RAM that we're using..
@@ -177,10 +171,10 @@ void * __ioremap(phys_t phys_addr, phys_t size, unsigned long flags)
return NULL;
}
- return (void *) (offset + (char *)addr);
+ return (void __iomem *) (offset + (char *)addr);
}
-#define IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == KSEG1)
+#define IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == CKSEG1)
void __iounmap(volatile void __iomem *addr)
{
@@ -190,10 +184,8 @@ void __iounmap(volatile void __iomem *addr)
return;
p = remove_vm_area((void *) (PAGE_MASK & (unsigned long __force) addr));
- if (!p) {
+ if (!p)
printk(KERN_ERR "iounmap: bad address %p\n", addr);
- return;
- }
kfree(p);
}