/* SPDX-License-Identifier: GPL-2.0 */ #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 if (shift == mmu_psize_defs[MMU_PAGE_16M].shift) return MMU_PAGE_16M; else if (shift == mmu_psize_defs[MMU_PAGE_16G].shift) return MMU_PAGE_16G; else { WARN(1, "Wrong huge page shift\n"); return mmu_virtual_psize; } } #ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE static inline bool gigantic_page_supported(void) { return true; } #endif /* hugepd entry valid bit */ #define HUGEPD_VAL_BITS (0x8000000000000000UL) #endif