| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_POWERPC_NOHASH_HUGETLB_BOOK3E_H |
| #define _ASM_POWERPC_NOHASH_HUGETLB_BOOK3E_H |
| |
| static inline pte_t *hugepd_page(hugepd_t hpd) |
| { |
| if (WARN_ON(!hugepd_ok(hpd))) |
| return NULL; |
| |
| return (pte_t *)((hpd_val(hpd) & ~HUGEPD_SHIFT_MASK) | PD_HUGE); |
| } |
| |
| static inline unsigned int hugepd_shift(hugepd_t hpd) |
| { |
| return hpd_val(hpd) & HUGEPD_SHIFT_MASK; |
| } |
| |
| static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr, |
| unsigned int pdshift) |
| { |
| /* |
| * On FSL BookE, we have multiple higher-level table entries that |
| * point to the same hugepte. Just use the first one since they're all |
| * identical. So for that case, idx=0. |
| */ |
| return hugepd_page(hpd); |
| } |
| |
| void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr); |
| |
| static inline void hugepd_populate(hugepd_t *hpdp, pte_t *new, unsigned int pshift) |
| { |
| /* We use the old format for PPC_FSL_BOOK3E */ |
| *hpdp = __hugepd(((unsigned long)new & ~PD_HUGE) | pshift); |
| } |
| |
| 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); |
| } |
| |
| #endif /* _ASM_POWERPC_NOHASH_HUGETLB_BOOK3E_H */ |
