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