blob: 27127abc95fb9d7c96b997e61a3a9998a4cd0088 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0-only */
* linux/arch/unicore32/mm/mm.h
* Code specific to PKUnity SoC and UniCore ISA
* Copyright (C) 2001-2010 GUAN Xue-tao
#include <asm/hwdef-copro.h>
/* the upper-most page table pointer */
extern pmd_t *top_pmd;
extern int sysctl_overcommit_memory;
#define TOP_PTE(x) pte_offset_kernel(top_pmd, x)
static inline pmd_t *pmd_off(pgd_t *pgd, unsigned long virt)
return pmd_offset((pud_t *)pgd, virt);
static inline pmd_t *pmd_off_k(unsigned long virt)
return pmd_off(pgd_offset_k(virt), virt);
struct mem_type {
unsigned int prot_pte;
unsigned int prot_l1;
unsigned int prot_sect;
const struct mem_type *get_mem_type(unsigned int type);
extern void __flush_dcache_page(struct address_space *, struct page *);
extern void hook_fault_code(int nr, int (*fn)
(unsigned long, unsigned int, struct pt_regs *),
int sig, int code, const char *name);
void __init bootmem_init(void);
void uc32_mm_memblock_reserve(void);