freebsd-dev/sys/arm/include/cpu.h
Warner Losh 4623180919 Minor rearrangement of the locore <-> initarm interface. Pass in a
structure with the first 4 registers to allow a wider range of boot
loaders to work.  Future commits will make use of this to centralize
support for the different loaders.
2012-06-03 18:34:32 +00:00

54 lines
1.2 KiB
C

/* $NetBSD: cpu.h,v 1.2 2001/02/23 21:23:52 reinoud Exp $ */
/* $FreeBSD$ */
#ifndef MACHINE_CPU_H
#define MACHINE_CPU_H
#include <machine/armreg.h>
void cpu_halt(void);
void swi_vm(void *);
#ifdef _KERNEL
static __inline uint64_t
get_cyclecount(void)
{
struct bintime bt;
binuptime(&bt);
return ((uint64_t)bt.sec << 56 | bt.frac >> 8);
}
#endif
#define TRAPF_USERMODE(frame) ((frame->tf_spsr & PSR_MODE) == PSR_USR32_MODE)
#define TRAPF_PC(tfp) ((tfp)->tf_pc)
#define cpu_getstack(td) ((td)->td_frame->tf_usr_sp)
#define cpu_setstack(td, sp) ((td)->td_frame->tf_usr_sp = (sp))
#define cpu_spinwait() /* nothing */
#define ARM_NVEC 8
#define ARM_VEC_ALL 0xffffffff
extern vm_offset_t vector_page;
struct arm_boot_params {
register_t abp_size; /* Size of this structure */
register_t abp_r0; /* r0 from the boot loader */
register_t abp_r1; /* r1 from the boot loader */
register_t abp_r2; /* r2 from the boot loader */
register_t abp_r3; /* r3 from the boot loader */
};
void arm_vector_init(vm_offset_t, int);
void fork_trampoline(void);
void identify_arm_cpu(void);
void *initarm(struct arm_boot_params *);
extern char btext[];
extern char etext[];
int badaddr_read(void *, size_t, void *);
#endif /* !MACHINE_CPU_H */