diff options
Diffstat (limited to 'arch/mips/mm/ioremap.c')
| -rw-r--r-- | arch/mips/mm/ioremap.c | 32 |
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); } |