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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-11-28 15:49:56 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-11-28 15:49:56 +0400 |
| commit | 9ee4be4156b1a507f199e750ba2c13ffb6ea9b42 (patch) | |
| tree | c92cb39ad1f0be559390c2a995d9aad2b0300b14 /arch/sparc/include/asm/pgtable_64.h | |
| parent | 005d610f2abc550172726b997f5cfe683769cc1c (diff) | |
| parent | d4d6373c1109b11c8118340be97ae31b8f94d66a (diff) | |
| download | linux-9ee4be4156b1a507f199e750ba2c13ffb6ea9b42.tar.xz | |
Merge remote-tracking branch 'regulator/for-linus' into regulator-next
Diffstat (limited to 'arch/sparc/include/asm/pgtable_64.h')
| -rw-r--r-- | arch/sparc/include/asm/pgtable_64.h | 20 |
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 adf89329af59..38ebb2c60137 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 |