cpu.h revision 253750 
1/* $NetBSD: cpu.h,v 1.2 2001/02/23 21:23:52 reinoud Exp $ */
2/* $FreeBSD: head/sys/arm/include/cpu.h 253750 2013-07-28 18:44:17Z avg $ */
3
4#ifndef MACHINE_CPU_H
5#define MACHINE_CPU_H
6
7#include <machine/armreg.h>
8
9void	cpu_halt(void);
10void	swi_vm(void *);
11
12#ifdef _KERNEL
13static __inline uint64_t
14get_cyclecount(void)
15{
16	struct bintime bt;
17
18	binuptime(&bt);
19	return ((uint64_t)bt.sec << 56 | bt.frac >> 8);
20
21}
22#endif
23
24#define TRAPF_USERMODE(frame)	((frame->tf_spsr & PSR_MODE) == PSR_USR32_MODE)
25
26#define TRAPF_PC(tfp)		((tfp)->tf_pc)
27
28#define cpu_getstack(td)	((td)->td_frame->tf_usr_sp)
29#define cpu_setstack(td, sp)	((td)->td_frame->tf_usr_sp = (sp))
30#define cpu_spinwait()		/* nothing */
31
32#define ARM_NVEC		8
33#define ARM_VEC_ALL		0xffffffff
34
35extern vm_offset_t vector_page;
36
37struct arm_boot_params {
38	register_t	abp_size;	/* Size of this structure */
39	register_t	abp_r0;		/* r0 from the boot loader */
40	register_t	abp_r1;		/* r1 from the boot loader */
41	register_t	abp_r2;		/* r2 from the boot loader */
42	register_t	abp_r3;		/* r3 from the boot loader */
43};
44
45void	arm_vector_init(vm_offset_t, int);
46void	fork_trampoline(void);
47void	identify_arm_cpu(void);
48void	*initarm(struct arm_boot_params *);
49
50extern char btext[];
51extern char etext[];
52int badaddr_read(void *, size_t, void *);
53#endif /* !MACHINE_CPU_H */
54