/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_POWERPC_NOHASH_32_HUGETLB_8XX_H #define _ASM_POWERPC_NOHASH_32_HUGETLB_8XX_H #define PAGE_SHIFT_8M 23 static inline pte_t *hugepd_page(hugepd_t hpd) { BUG_ON(!hugepd_ok(hpd)); return (pte_t *)__va(hpd_val(hpd) & ~HUGEPD_SHIFT_MASK); } static inline unsigned int hugepd_shift(hugepd_t hpd) { return ((hpd_val(hpd) & _PMD_PAGE_MASK) >> 1) + 17; } static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr, unsigned int pdshift) { unsigned long idx = (addr & ((1UL << pdshift) - 1)) >> PAGE_SHIFT; return hugepd_page(hpd) + idx; } static inline void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr) { flush_tlb_page(vma, vmaddr); } static inline void hugepd_populate(hugepd_t *hpdp, pte_t *new, unsigned int pshift) { *hpdp = __hugepd(__pa(new) | _PMD_USER | _PMD_PRESENT | (pshift == PAGE_SHIFT_8M ? _PMD_PAGE_8M : _PMD_PAGE_512K)); } static inline int check_and_get_huge_psize(int shift) { return shift_to_mmu_psize(shift); } #endif /* _ASM_POWERPC_NOHASH_32_HUGETLB_8XX_H */