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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _ASM_POWERPC_NOHASH_HUGETLB_E500_H
- #define _ASM_POWERPC_NOHASH_HUGETLB_E500_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_E500 */
- *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_E500_H */
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