/* SPDX-License-Identifier: GPL-2.0 */// Copyright (C) 2005-2017 Andes Technology Corporation #ifndef _ASMNDS32_PGALLOC_H#define _ASMNDS32_PGALLOC_H #include <asm/processor.h>#include <asm/cacheflush.h>#include <asm/tlbflush.h>#include <asm/proc-fns.h> #define __HAVE_ARCH_PTE_ALLOC_ONE#include <asm-generic/pgalloc.h>	/* for pte_{alloc,free}_one */ /* * Since we have only two-level page tables, these are trivial */#define pmd_pgtable(pmd) pmd_page(pmd) extern pgd_t *pgd_alloc(struct mm_struct *mm);extern void pgd_free(struct mm_struct *mm, pgd_t * pgd); static inline pgtable_t pte_alloc_one(struct mm_struct *mm){	pgtable_t pte; 	pte = __pte_alloc_one(mm, GFP_PGTABLE_USER);	if (pte)		cpu_dcache_wb_page((unsigned long)page_address(pte)); 	return pte;} /* * Populate the pmdp entry with a pointer to the pte.  This pmd is part * of the mm address space. * * Ensure that we always set both PMD entries. */static inline voidpmd_populate_kernel(struct mm_struct *mm, pmd_t * pmdp, pte_t * ptep){	unsigned long pte_ptr = (unsigned long)ptep;	unsigned long pmdval; 	BUG_ON(mm != &init_mm); 	/*	 * The pmd must be loaded with the physical	 * address of the PTE table	 */	pmdval = __pa(pte_ptr) | _PAGE_KERNEL_TABLE;	set_pmd(pmdp, __pmd(pmdval));} static inline voidpmd_populate(struct mm_struct *mm, pmd_t * pmdp, pgtable_t ptep){	unsigned long pmdval; 	BUG_ON(mm == &init_mm); 	pmdval = page_to_pfn(ptep) << PAGE_SHIFT | _PAGE_USER_TABLE;	set_pmd(pmdp, __pmd(pmdval));} #endif