1129198Scognet/* $NetBSD: cpu.h,v 1.2 2001/02/23 21:23:52 reinoud Exp $ */ 2129198Scognet/* $FreeBSD$ */ 3129198Scognet 4129198Scognet#ifndef MACHINE_CPU_H 5129198Scognet#define MACHINE_CPU_H 6129198Scognet 7278684Sian#include <machine/acle-compat.h> 8129198Scognet#include <machine/armreg.h> 9259329Sian#include <machine/frame.h> 10129198Scognet 11236524Simpvoid cpu_halt(void); 12236524Simpvoid swi_vm(void *); 13129198Scognet 14253750Savg#ifdef _KERNEL 15278684Sian#if __ARM_ARCH >= 6 16278684Sian#include <machine/cpu-v6.h> 17278684Sian#endif 18129198Scognetstatic __inline uint64_t 19129198Scognetget_cyclecount(void) 20129198Scognet{ 21278684Sian#if __ARM_ARCH >= 6 22278684Sian return cp15_pmccntr_get(); 23278680Sian#else /* No performance counters, so use binuptime(9). This is slooooow */ 24137223Scognet struct bintime bt; 25137223Scognet 26137223Scognet binuptime(&bt); 27219653Sjkim return ((uint64_t)bt.sec << 56 | bt.frac >> 8); 28278680Sian#endif 29129198Scognet} 30253750Savg#endif 31129198Scognet 32129198Scognet#define TRAPF_USERMODE(frame) ((frame->tf_spsr & PSR_MODE) == PSR_USR32_MODE) 33129198Scognet 34129198Scognet#define TRAPF_PC(tfp) ((tfp)->tf_pc) 35129198Scognet 36236524Simp#define cpu_getstack(td) ((td)->td_frame->tf_usr_sp) 37236524Simp#define cpu_setstack(td, sp) ((td)->td_frame->tf_usr_sp = (sp)) 38133084Smux#define cpu_spinwait() /* nothing */ 39129198Scognet 40129198Scognet#define ARM_NVEC 8 41129198Scognet#define ARM_VEC_ALL 0xffffffff 42129198Scognet 43129198Scognetextern vm_offset_t vector_page; 44129198Scognet 45266194Sian/* 46266194Sian * Params passed into initarm. If you change the size of this you will 47266194Sian * need to update locore.S to allocate more memory on the stack before 48266194Sian * it calls initarm. 49266194Sian */ 50236524Simpstruct arm_boot_params { 51236524Simp register_t abp_size; /* Size of this structure */ 52236524Simp register_t abp_r0; /* r0 from the boot loader */ 53236524Simp register_t abp_r1; /* r1 from the boot loader */ 54236524Simp register_t abp_r2; /* r2 from the boot loader */ 55236524Simp register_t abp_r3; /* r3 from the boot loader */ 56266160Sian vm_offset_t abp_physaddr; /* The kernel physical address */ 57266194Sian vm_offset_t abp_pagetable; /* The early page table */ 58236524Simp}; 59236524Simp 60141094Snjlvoid arm_vector_init(vm_offset_t, int); 61141094Snjlvoid fork_trampoline(void); 62141094Snjlvoid identify_arm_cpu(void); 63236524Simpvoid *initarm(struct arm_boot_params *); 64129198Scognet 65129198Scognetextern char btext[]; 66129198Scognetextern char etext[]; 67236524Simpint badaddr_read(void *, size_t, void *); 68129198Scognet#endif /* !MACHINE_CPU_H */ 69