|
|
|
|
/*
|
|
|
|
|
* linux/arch/unicore32/mm/mm.h
|
|
|
|
|
*
|
|
|
|
|
* Code specific to PKUnity SoC and UniCore ISA
|
|
|
|
|
*
|
|
|
|
|
* Copyright (C) 2001-2010 GUAN Xue-tao
|
|
|
|
|
*
|
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
|
|
|
* published by the Free Software Foundation.
|
|
|
|
|
*/
|
|
|
|
|
#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);
|
