Merge branch 'exynos-drm' of git://git.infradead.org/users/kmpark/linux-samsung into...

[pandora-kernel.git] / arch / sparc / include / asm / pgtable_64.h

diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index adf8932..38ebb2c 100644 (file)
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -757,10 +757,6 @@ static inline bool kern_addr_valid(unsigned long addr)
 
 extern int page_in_phys_avail(unsigned long paddr);
 
-extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
-                              unsigned long pfn,
-                              unsigned long size, pgprot_t prot);
-
 /*
  * For sparc32&64, the pfn in io_remap_pfn_range() carries <iospace> in
  * its high 4 bits.  These macros/functions put it there or get it from there.
@@ -769,6 +765,22 @@ extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
 #define GET_IOSPACE(pfn)               (pfn >> (BITS_PER_LONG - 4))
 #define GET_PFN(pfn)                   (pfn & 0x0fffffffffffffffUL)
 
+extern int remap_pfn_range(struct vm_area_struct *, unsigned long, unsigned long,
+                          unsigned long, pgprot_t);
+
+static inline int io_remap_pfn_range(struct vm_area_struct *vma,
+                                    unsigned long from, unsigned long pfn,
+                                    unsigned long size, pgprot_t prot)
+{
+       unsigned long offset = GET_PFN(pfn) << PAGE_SHIFT;
+       int space = GET_IOSPACE(pfn);
+       unsigned long phys_base;
+
+       phys_base = offset | (((unsigned long) space) << 32UL);
+
+       return remap_pfn_range(vma, from, phys_base >> PAGE_SHIFT, size, prot);
+}
+
 #include <asm-generic/pgtable.h>
 
 /* We provide our own get_unmapped_area to cope with VA holes and