LXR linux/arch/unicore32/include/asm/cpu-single.h

   1/*
   2 * linux/arch/unicore32/include/asm/cpu-single.h
   3 *
   4 * Code specific to PKUnity SoC and UniCore ISA
   5 *
   6 * Copyright (C) 2001-2010 GUAN Xue-tao
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License version 2 as
  10 * published by the Free Software Foundation.
  11 */
  12#ifndef __UNICORE_CPU_SINGLE_H__
  13#define __UNICORE_CPU_SINGLE_H__
  14
  15#include <asm/page.h>
  16#include <asm/memory.h>
  17
  18#ifdef __KERNEL__
  19#ifndef __ASSEMBLY__
  20
  21#define cpu_switch_mm(pgd, mm) cpu_do_switch_mm(virt_to_phys(pgd), mm)
  22
  23#define cpu_get_pgd()                                   \
  24        ({                                              \
  25                unsigned long pg;                       \
  26                __asm__("movc   %0, p0.c2, #0"          \
  27                         : "=r" (pg) : : "cc");         \
  28                pg &= ~0x0fff;                          \
  29                (pgd_t *)phys_to_virt(pg);              \
  30        })
  31
  32struct mm_struct;
  33
  34/* declare all the functions as extern */
  35extern void cpu_proc_fin(void);
  36extern int cpu_do_idle(void);
  37extern void cpu_dcache_clean_area(void *, int);
  38extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
  39extern void cpu_set_pte(pte_t *ptep, pte_t pte);
  40extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
  41
  42#endif /* __ASSEMBLY__ */
  43#endif /* __KERNEL__ */
  44
  45#endif /* __UNICORE_CPU_SINGLE_H__ */
  46