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[PATCH] sparc: convert IO remapping to VM_PFNMAP

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Here are the Sparc bits.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
David S. Miller
2005-11-28 14:02:10 -08:00
committed by Linus Torvalds
parent 6aab341e0a
commit 5cd9194a1b
3 changed files with 19 additions and 16 deletions
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10
arch/sparc/mm/generic.c
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@@ -32,9 +32,7 @@ static inline void io_remap_pte_range(struct mm_struct *mm, pte_t * pte, unsigne
if (end > PMD_SIZE)
end = PMD_SIZE;
do {
pte_t oldpage = *pte;
pte_clear(mm, address, pte);
set_pte(pte, mk_pte_io(offset, prot, space));
set_pte_at(mm, address, pte, mk_pte_io(offset, prot, space));
address += PAGE_SIZE;
offset += PAGE_SIZE;
pte++;
@@ -63,7 +61,7 @@ static inline int io_remap_pmd_range(struct mm_struct *mm, pmd_t * pmd, unsigned
}
int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long pfn, unsigned long size, pgprot_t prot)
unsigned long pfn, unsigned long size, pgprot_t prot)
{
int error = 0;
pgd_t * dir;
@@ -74,7 +72,9 @@ int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
unsigned long offset = GET_PFN(pfn) << PAGE_SHIFT;
/* See comment in mm/memory.c remap_pfn_range */
vma->vm_flags |= VM_IO | VM_RESERVED | VM_UNPAGED;
vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
vma->vm_pgoff = (offset >> PAGE_SHIFT) |
((unsigned long)space << 28UL);
prot = __pgprot(pg_iobits);
offset -= from;