X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fsh64%2Fmm%2Fioremap.c;h=ff26c02511aa6eac58ed79bb284f7bb76604e2f0;hb=refs%2Fheads%2Fvserver;hp=fb1866fa2c9d1d62b1cd294f7178dfebd1560285;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/arch/sh64/mm/ioremap.c b/arch/sh64/mm/ioremap.c index fb1866fa2..ff26c0251 100644 --- a/arch/sh64/mm/ioremap.c +++ b/arch/sh64/mm/ioremap.c @@ -18,7 +18,7 @@ #include #include #include -#include +#include #include #include #include @@ -28,96 +28,6 @@ static void shmedia_mapioaddr(unsigned long, unsigned long); static unsigned long shmedia_ioremap(struct resource *, u32, int); -static inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned long size, - unsigned long phys_addr, unsigned long flags) -{ - unsigned long end; - unsigned long pfn; - pgprot_t pgprot = __pgprot(_PAGE_PRESENT | _PAGE_READ | - _PAGE_WRITE | _PAGE_DIRTY | - _PAGE_ACCESSED | _PAGE_SHARED | flags); - - address &= ~PMD_MASK; - end = address + size; - if (end > PMD_SIZE) - end = PMD_SIZE; - if (address >= end) - BUG(); - - pfn = phys_addr >> PAGE_SHIFT; - - pr_debug(" %s: pte %p address %lx size %lx phys_addr %lx\n", - __FUNCTION__,pte,address,size,phys_addr); - - do { - if (!pte_none(*pte)) { - printk("remap_area_pte: page already exists\n"); - BUG(); - } - - set_pte(pte, pfn_pte(pfn, pgprot)); - address += PAGE_SIZE; - pfn++; - pte++; - } while (address && (address < end)); -} - -static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size, - unsigned long phys_addr, unsigned long flags) -{ - unsigned long end; - - address &= ~PGDIR_MASK; - end = address + size; - - if (end > PGDIR_SIZE) - end = PGDIR_SIZE; - - phys_addr -= address; - - if (address >= end) - BUG(); - - do { - pte_t * pte = pte_alloc_kernel(pmd, address); - if (!pte) - return -ENOMEM; - remap_area_pte(pte, address, end - address, address + phys_addr, flags); - address = (address + PMD_SIZE) & PMD_MASK; - pmd++; - } while (address && (address < end)); - return 0; -} - -static int remap_area_pages(unsigned long address, unsigned long phys_addr, - unsigned long size, unsigned long flags) -{ - int error; - pgd_t * dir; - unsigned long end = address + size; - - phys_addr -= address; - dir = pgd_offset_k(address); - flush_cache_all(); - if (address >= end) - BUG(); - do { - pmd_t *pmd = pmd_alloc(&init_mm, dir, address); - error = -ENOMEM; - if (!pmd) - break; - if (remap_area_pmd(pmd, address, end - address, - phys_addr + address, flags)) { - break; - } - error = 0; - address = (address + PGDIR_SIZE) & PGDIR_MASK; - dir++; - } while (address && (address < end)); - flush_tlb_all(); - return 0; -} - /* * Generic mapping function (not visible outside): */ @@ -136,12 +46,17 @@ void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flag void * addr; struct vm_struct * area; unsigned long offset, last_addr; + pgprot_t pgprot; /* Don't allow wraparound or zero size */ last_addr = phys_addr + size - 1; if (!size || last_addr < phys_addr) return NULL; + pgprot = __pgprot(_PAGE_PRESENT | _PAGE_READ | + _PAGE_WRITE | _PAGE_DIRTY | + _PAGE_ACCESSED | _PAGE_SHARED | flags); + /* * Mappings have to be page-aligned */ @@ -158,7 +73,8 @@ void * __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flag return NULL; area->phys_addr = phys_addr; addr = area->addr; - if (remap_area_pages((unsigned long)addr, phys_addr, size, flags)) { + if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size, + phys_addr, pgprot)) { vunmap(addr); return NULL; } @@ -449,7 +365,9 @@ ioremap_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, if (p + 32 >= e) /* Better than nothing */ break; if ((nm = r->name) == 0) nm = "???"; - p += sprintf(p, "%08lx-%08lx: %s\n", r->start, r->end, nm); + p += sprintf(p, "%08lx-%08lx: %s\n", + (unsigned long)r->start, + (unsigned long)r->end, nm); } return p-buf;