1/* $NetBSD: cpu.h,v 1.2 2001/02/23 21:23:52 reinoud Exp $ */
2/* $FreeBSD: releng/10.3/sys/arm/include/cpu.h 278684 2015-02-13 17:53:11Z ian $ */
3
4#ifndef MACHINE_CPU_H
5#define MACHINE_CPU_H
6
7#include <machine/acle-compat.h>
8#include <machine/armreg.h>
9#include <machine/frame.h>
10
11void	cpu_halt(void);
12void	swi_vm(void *);
13
14#ifdef _KERNEL
15#if __ARM_ARCH >= 6
16#include <machine/cpu-v6.h>
17#endif
18static __inline uint64_t
19get_cyclecount(void)
20{
21#if __ARM_ARCH >= 6
22	return cp15_pmccntr_get();
23#else /* No performance counters, so use binuptime(9). This is slooooow */
24	struct bintime bt;
25
26	binuptime(&bt);
27	return ((uint64_t)bt.sec << 56 | bt.frac >> 8);
28#endif
29}
30#endif
31
32#define TRAPF_USERMODE(frame)	((frame->tf_spsr & PSR_MODE) == PSR_USR32_MODE)
33
34#define TRAPF_PC(tfp)		((tfp)->tf_pc)
35
36#define cpu_getstack(td)	((td)->td_frame->tf_usr_sp)
37#define cpu_setstack(td, sp)	((td)->td_frame->tf_usr_sp = (sp))
38#define cpu_spinwait()		/* nothing */
39
40#define ARM_NVEC		8
41#define ARM_VEC_ALL		0xffffffff
42
43extern vm_offset_t vector_page;
44
45/*
46 * Params passed into initarm. If you change the size of this you will
47 * need to update locore.S to allocate more memory on the stack before
48 * it calls initarm.
49 */
50struct arm_boot_params {
51	register_t	abp_size;	/* Size of this structure */
52	register_t	abp_r0;		/* r0 from the boot loader */
53	register_t	abp_r1;		/* r1 from the boot loader */
54	register_t	abp_r2;		/* r2 from the boot loader */
55	register_t	abp_r3;		/* r3 from the boot loader */
56	vm_offset_t	abp_physaddr;	/* The kernel physical address */
57	vm_offset_t	abp_pagetable;	/* The early page table */
58};
59
60void	arm_vector_init(vm_offset_t, int);
61void	fork_trampoline(void);
62void	identify_arm_cpu(void);
63void	*initarm(struct arm_boot_params *);
64
65extern char btext[];
66extern char etext[];
67int badaddr_read(void *, size_t, void *);
68#endif /* !MACHINE_CPU_H */
69