diff options
Diffstat (limited to 'arch/powerpc/include/asm/nohash/hugetlb-e500.h')
| -rw-r--r-- | arch/powerpc/include/asm/nohash/hugetlb-e500.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/nohash/hugetlb-e500.h b/arch/powerpc/include/asm/nohash/hugetlb-e500.h new file mode 100644 index 000000000000..cab0e1f1eea0 --- /dev/null +++ b/arch/powerpc/include/asm/nohash/hugetlb-e500.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_POWERPC_NOHASH_HUGETLB_E500_H +#define _ASM_POWERPC_NOHASH_HUGETLB_E500_H + +void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr); + +static inline int check_and_get_huge_psize(int shift) +{ + if (shift & 1) /* Not a power of 4 */ + return -EINVAL; + + return shift_to_mmu_psize(shift); +} + +static inline pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags) +{ + unsigned int tsize = shift - _PAGE_PSIZE_SHIFT_OFFSET; + pte_basic_t val = (tsize << _PAGE_PSIZE_SHIFT) & _PAGE_PSIZE_MSK; + + return __pte((pte_val(entry) & ~(pte_basic_t)_PAGE_PSIZE_MSK) | val); +} +#define arch_make_huge_pte arch_make_huge_pte + +#endif /* _ASM_POWERPC_NOHASH_HUGETLB_E500_H */ |