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);
flush_cache_all();
if (address >= end)
BUG();
- spin_lock(&init_mm.page_table_lock);
do {
pud_t *pud;
pud = pud_alloc(&init_mm, pgd, address);
address = (address + PGDIR_SIZE) & PGDIR_MASK;
pgd++;
} while (address && (address < end));
- spin_unlock(&init_mm.page_table_lock);
flush_tlb_all();
return error;
}
unsigned long flags)
{
int err = 0;
- if (flags && phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT)) {
+ if (phys_addr + size - 1 < (end_pfn_map << PAGE_SHIFT)) {
unsigned long npages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
unsigned long vaddr = (unsigned long) __va(phys_addr);
if (phys_addr >= ISA_START_ADDRESS && last_addr < ISA_END_ADDRESS)
return (__force void __iomem *)phys_to_virt(phys_addr);
-#ifndef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_FLATMEM
/*
* Don't allow anybody to remap normal RAM that we're using..
*/
remove_vm_area((void *)(PAGE_MASK & (unsigned long) addr));
return NULL;
}
- if (ioremap_change_attr(phys_addr, size, flags) < 0) {
+ if (flags && ioremap_change_attr(phys_addr, size, flags) < 0) {
area->flags &= 0xffffff;
vunmap(addr);
return NULL;
void iounmap(volatile void __iomem *addr)
{
- struct vm_struct *p, **pprev;
+ struct vm_struct *p;
if (addr <= high_memory)
return;
return;
write_lock(&vmlist_lock);
- for (p = vmlist, pprev = &vmlist; p != NULL; pprev = &p->next, p = *pprev)
- if (p->addr == (void *)(PAGE_MASK & (unsigned long)addr))
- break;
- if (!p) {
- printk("__iounmap: bad address %p\n", addr);
- goto out_unlock;
- }
- *pprev = p->next;
- unmap_vm_area(p);
- if ((p->flags >> 20) &&
- p->phys_addr + p->size - 1 < virt_to_phys(high_memory)) {
- /* p->size includes the guard page, but cpa doesn't like that */
- change_page_attr_addr((unsigned long)__va(p->phys_addr),
- p->size >> PAGE_SHIFT,
- PAGE_KERNEL);
- global_flush_tlb();
- }
-out_unlock:
+ p = __remove_vm_area((void *)((unsigned long)addr & PAGE_MASK));
+ if (!p)
+ printk("iounmap: bad address %p\n", addr);
+ else if (p->flags >> 20)
+ ioremap_change_attr(p->phys_addr, p->size, 0);
write_unlock(&vmlist_lock);
kfree(p);
}