[SPARC]: Respect vm_page_prot in io_remap_page_range().
Make sure the callers do a pgprot_noncached() on
vma->vm_page_prot.
Pointed out by Hugh Dickens.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h
index b33c354..9eea8f4 100644
--- a/include/asm-sparc/pgtable.h
+++ b/include/asm-sparc/pgtable.h
@@ -269,11 +269,14 @@
BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_phys, unsigned long, pgprot_t)
BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_io, unsigned long, pgprot_t, int)
+BTFIXUPDEF_CALL_CONST(pgprot_t, pgprot_noncached, pgprot_t)
#define mk_pte(page,pgprot) BTFIXUP_CALL(mk_pte)(page,pgprot)
#define mk_pte_phys(page,pgprot) BTFIXUP_CALL(mk_pte_phys)(page,pgprot)
#define mk_pte_io(page,pgprot,space) BTFIXUP_CALL(mk_pte_io)(page,pgprot,space)
+#define pgprot_noncached(pgprot) BTFIXUP_CALL(pgprot_noncached)(pgprot)
+
BTFIXUPDEF_INT(pte_modify_mask)
static pte_t pte_modify(pte_t pte, pgprot_t newprot) __attribute_const__;
@@ -309,9 +312,6 @@
#define pte_unmap(pte) do{}while(0)
#define pte_unmap_nested(pte) do{}while(0)
-/* The permissions for pgprot_val to make a page mapped on the obio space */
-extern unsigned int pg_iobits;
-
/* Certain architectures need to do special things when pte's
* within a page table are directly modified. Thus, the following
* hook is made available.