/* SPDX-License-Identifier: GPL-2.0 *//* sun3_pgalloc.h -- * reorganization around 2.3.39, routines moved from sun3_pgtable.h * * * 02/27/2002 -- Modified to support "highpte" implementation in 2.5.5 (Sam) * * moved 1/26/2000 Sam Creasey */ #ifndef _SUN3_PGALLOC_H#define _SUN3_PGALLOC_H #include <asm/tlb.h> #include <asm-generic/pgalloc.h> extern const char bad_pmd_string[]; #define __pte_free_tlb(tlb, pte, addr)	\	tlb_remove_ptdesc((tlb), page_ptdesc(pte)) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte){	pmd_val(*pmd) = __pa((unsigned long)pte);} static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page){	pmd_val(*pmd) = __pa((unsigned long)page_address(page));} /* * allocating and freeing a pmd is trivial: the 1-entry pmd is * inside the pgd, so has no extra memory associated with it. */#define pmd_free(mm, x)			do { } while (0) static inline pgd_t * pgd_alloc(struct mm_struct *mm){	pgd_t *new_pgd; 	new_pgd = __pgd_alloc(mm, 0);	if (likely(new_pgd != NULL)) {		memcpy(new_pgd, swapper_pg_dir, PAGE_SIZE);		memset(new_pgd, 0, (PAGE_OFFSET >> PGDIR_SHIFT));	}	return new_pgd;} #endif /* SUN3_PGALLOC_H */