1/* $NetBSD: cpu.h,v 1.2 2001/02/23 21:23:52 reinoud Exp $ */ 2/* $FreeBSD$ */ 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