diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-11-28 11:46:58 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-11-28 22:34:47 +1100 |
| commit | bee8b3b56d1dfc4075254a61340ee3898a732e63 (patch) | |
| tree | f13854e804073ef26a91623aefd813eee49c6459 /arch/powerpc/include/asm/book3s/64/hugetlb.h | |
| parent | ae88f7b9af17a1267f5dd5b87a44878e676fa570 (diff) | |
powerpc/mm: Rename hugetlb-radix.h to hugetlb.h
We will start moving some book3s specific hugetlb functions there.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/hugetlb.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/hugetlb.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/hugetlb.h b/arch/powerpc/include/asm/book3s/64/hugetlb.h new file mode 100644 index 000000000000..499268045306 --- /dev/null +++ b/arch/powerpc/include/asm/book3s/64/hugetlb.h @@ -0,0 +1,29 @@ +#ifndef _ASM_POWERPC_BOOK3S_64_HUGETLB_H +#define _ASM_POWERPC_BOOK3S_64_HUGETLB_H +/* + * For radix we want generic code to handle hugetlb. But then if we want + * both hash and radix to be enabled together we need to workaround the + * limitations. + */ +void radix__flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr); +void radix__local_flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr); +extern unsigned long +radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr, + unsigned long len, unsigned long pgoff, + unsigned long flags); + +static inline int hstate_get_psize(struct hstate *hstate) +{ + unsigned long shift; + + shift = huge_page_shift(hstate); + if (shift == mmu_psize_defs[MMU_PAGE_2M].shift) + return MMU_PAGE_2M; + else if (shift == mmu_psize_defs[MMU_PAGE_1G].shift) + return MMU_PAGE_1G; + else { + WARN(1, "Wrong huge page shift\n"); + return mmu_virtual_psize; + } +} +#endif |