/* SPDX-License-Identifier: GPL-2.0 */#ifndef _ASM_POWERPC_PGALLOC_H#define _ASM_POWERPC_PGALLOC_H #include <linux/mm.h> #ifndef MODULEstatic inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp){	if (unlikely(mm == &init_mm))		return gfp;	return gfp | __GFP_ACCOUNT;}#else /* !MODULE */static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp){	return gfp | __GFP_ACCOUNT;}#endif /* MODULE */ #define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO) pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel); static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm){	return (pte_t *)pte_fragment_alloc(mm, 1);} static inline pgtable_t pte_alloc_one(struct mm_struct *mm){	return (pgtable_t)pte_fragment_alloc(mm, 0);} void pte_frag_destroy(void *pte_frag);void pte_fragment_free(unsigned long *table, int kernel); static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte){	pte_fragment_free((unsigned long *)pte, 1);} static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage){	pte_fragment_free((unsigned long *)ptepage, 0);} /* * Functions that deal with pagetables that could be at any level of * the table need to be passed an "index_size" so they know how to * handle allocation.  For PTE pages, the allocation size will be * (2^index_size * sizeof(pointer)) and allocations are drawn from * the kmem_cache in PGT_CACHE(index_size). * * The maximum index size needs to be big enough to allow any * pagetable sizes we need, but small enough to fit in the low bits of * any page table pointer.  In other words all pagetables, even tiny * ones, must be aligned to allow at least enough low 0 bits to * contain this value.  This value is also used as a mask, so it must * be one less than a power of two. */#define MAX_PGTABLE_INDEX_SIZE	0xf extern struct kmem_cache *pgtable_cache[];#define PGT_CACHE(shift) pgtable_cache[shift] static inline void check_pgt_cache(void) { } #ifdef CONFIG_PPC_BOOK3S#include <asm/book3s/pgalloc.h>#else#include <asm/nohash/pgalloc.h>#endif static inline pgtable_t pmd_pgtable(pmd_t pmd){	return (pgtable_t)pmd_page_vaddr(pmd);} #endif /* _ASM_POWERPC_PGALLOC_H */