#include <asm/page.h>
#include <asm/tlbflush.h>
+static inline pte_t mk_pte_io(unsigned long page, pgprot_t prot, int space)
+{
+ pte_t pte;
+ pte_val(pte) = (((page) | pgprot_val(prot) | _PAGE_E) &
+ ~(unsigned long)_PAGE_CACHE);
+ pte_val(pte) |= (((unsigned long)space) << 32);
+ return pte;
+}
+
/* Remap IO memory, the same way as remap_pfn_range(), but use
* the obio memory space.
*
BUG_ON(!pte_none(*pte));
set_pte_at(mm, address, pte, entry);
address += PAGE_SIZE;
+ pte_val(entry) += PAGE_SIZE;
pte++;
} while (address < curend);
} while (address < end);
struct mm_struct *mm = vma->vm_mm;
int space = GET_IOSPACE(pfn);
unsigned long offset = GET_PFN(pfn) << PAGE_SHIFT;
+ unsigned long phys_base;
+
+ phys_base = offset | (((unsigned long) space) << 32UL);
/* See comment in mm/memory.c remap_pfn_range */
- vma->vm_flags |= VM_IO | VM_RESERVED;
+ vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
+ vma->vm_pgoff = phys_base >> PAGE_SHIFT;
prot = __pgprot(pg_iobits);
offset -= from;