cpu-single.h

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/*
 * linux/arch/unicore32/include/asm/cpu-single.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.
 */
#ifndef __UNICORE_CPU_SINGLE_H__
#define __UNICORE_CPU_SINGLE_H__

#include <asm/page.h>
#include <asm/memory.h>

#ifdef __KERNEL__
#ifndef __ASSEMBLY__

#define cpu_switch_mm(pgd, mm) cpu_do_switch_mm(virt_to_phys(pgd), mm)

#define cpu_get_pgd()                   \
    ({                      \
        unsigned long pg;           \
        __asm__("movc   %0, p0.c2, #0"      \
             : "=r" (pg) : : "cc");     \
        pg &= ~0x0fff;              \
        (pgd_t *)phys_to_virt(pg);      \
    })

struct mm_struct;

/* declare all the functions as extern */
extern void cpu_proc_fin(void);
extern int cpu_do_idle(void);
extern void cpu_dcache_clean_area(void *, int);
extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
extern void cpu_set_pte(pte_t *ptep, pte_t pte);
extern void cpu_reset(unsigned long addr) __attribute__((noreturn));

#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */

#endif /* __UNICORE_CPU_SINGLE_H__ */