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 32 struct mm_struct; 33 34 /* declare all the functions as extern */ 35 extern void cpu_proc_fin(void); 36 extern int cpu_do_idle(void); 37 extern void cpu_dcache_clean_area(void *, int); 38 extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm); 39 extern void cpu_set_pte(pte_t *ptep, pte_t pte); 40 extern void cpu_reset(unsigned long addr) __attribute__((noreturn)); 41 42 #endif /* __ASSEMBLY__ */ 43 #endif /* __KERNEL__ */ 44 45 #endif /* __UNICORE_CPU_SINGLE_H__ */ 46