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Diffstat (limited to 'arch/sparc64/mm/generic.c')
-rw-r--r--arch/sparc64/mm/generic.c41
1 files changed, 18 insertions, 23 deletions
diff --git a/arch/sparc64/mm/generic.c b/arch/sparc64/mm/generic.c
index 580b63da836..8cb06205d26 100644
--- a/arch/sparc64/mm/generic.c
+++ b/arch/sparc64/mm/generic.c
@@ -15,15 +15,6 @@
#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.
*
@@ -48,24 +39,29 @@ static inline void io_remap_pte_range(struct mm_struct *mm, pte_t * pte,
pte_t entry;
unsigned long curend = address + PAGE_SIZE;
- entry = mk_pte_io(offset, prot, space);
+ entry = mk_pte_io(offset, prot, space, PAGE_SIZE);
if (!(address & 0xffff)) {
- if (!(address & 0x3fffff) && !(offset & 0x3ffffe) && end >= address + 0x400000) {
- entry = mk_pte_io(offset,
- __pgprot(pgprot_val (prot) | _PAGE_SZ4MB),
- space);
+ if (PAGE_SIZE < (4 * 1024 * 1024) &&
+ !(address & 0x3fffff) &&
+ !(offset & 0x3ffffe) &&
+ end >= address + 0x400000) {
+ entry = mk_pte_io(offset, prot, space,
+ 4 * 1024 * 1024);
curend = address + 0x400000;
offset += 0x400000;
- } else if (!(address & 0x7ffff) && !(offset & 0x7fffe) && end >= address + 0x80000) {
- entry = mk_pte_io(offset,
- __pgprot(pgprot_val (prot) | _PAGE_SZ512K),
- space);
+ } else if (PAGE_SIZE < (512 * 1024) &&
+ !(address & 0x7ffff) &&
+ !(offset & 0x7fffe) &&
+ end >= address + 0x80000) {
+ entry = mk_pte_io(offset, prot, space,
+ 512 * 1024 * 1024);
curend = address + 0x80000;
offset += 0x80000;
- } else if (!(offset & 0xfffe) && end >= address + 0x10000) {
- entry = mk_pte_io(offset,
- __pgprot(pgprot_val (prot) | _PAGE_SZ64K),
- space);
+ } else if (PAGE_SIZE < (64 * 1024) &&
+ !(offset & 0xfffe) &&
+ end >= address + 0x10000) {
+ entry = mk_pte_io(offset, prot, space,
+ 64 * 1024);
curend = address + 0x10000;
offset += 0x10000;
} else
@@ -144,7 +140,6 @@ int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
vma->vm_pgoff = phys_base >> PAGE_SHIFT;
- prot = __pgprot(pg_iobits);
offset -= from;
dir = pgd_offset(mm, from);
flush_cache_range(vma, beg, end);