/* SPDX-License-Identifier: GPL-2.0 */#ifndef M68K_MCF_PGALLOC_H#define M68K_MCF_PGALLOC_H #include <asm/tlb.h>#include <asm/tlbflush.h> static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte){	pagetable_dtor_free(virt_to_ptdesc(pte));} extern const char bad_pmd_string[]; static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm){	struct ptdesc *ptdesc = pagetable_alloc((GFP_DMA | __GFP_ZERO) &			~__GFP_HIGHMEM, 0); 	if (!ptdesc)		return NULL;	if (!pagetable_pte_ctor(mm, ptdesc)) {		pagetable_free(ptdesc);		return NULL;	} 	return ptdesc_address(ptdesc);} extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address){	return (pmd_t *) pgd;} #define pmd_populate(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte)) #define pmd_populate_kernel pmd_populate static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable,				  unsigned long address){	struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); 	pagetable_dtor(ptdesc);	pagetable_free(ptdesc);} static inline pgtable_t pte_alloc_one(struct mm_struct *mm){	struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0);	pte_t *pte; 	if (!ptdesc)		return NULL;	if (!pagetable_pte_ctor(mm, ptdesc)) {		pagetable_free(ptdesc);		return NULL;	} 	pte = ptdesc_address(ptdesc);	return pte;} static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable){	struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); 	pagetable_dtor(ptdesc);	pagetable_free(ptdesc);} /* * In our implementation, each pgd entry contains 1 pmd that is never allocated * or freed.  pgd_present is always 1, so this should never be called. -NL */#define pmd_free(mm, pmd) BUG() static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd){	pagetable_dtor_free(virt_to_ptdesc(pgd));} static inline pgd_t *pgd_alloc(struct mm_struct *mm){	pgd_t *new_pgd;	struct ptdesc *ptdesc = pagetable_alloc((GFP_DMA | __GFP_NOWARN) &			~__GFP_HIGHMEM, 0); 	if (!ptdesc)		return NULL;	pagetable_pgd_ctor(ptdesc);	new_pgd = ptdesc_address(ptdesc); 	memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t));	memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT);	return new_pgd;} #endif /* M68K_MCF_PGALLOC_H */