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Diffstat (limited to 'arch/sparc/include/asm/pgtable_64.h')
-rw-r--r--arch/sparc/include/asm/pgtable_64.h20
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index adf89329af5..38ebb2c6013 100644
--- 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