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 11 #if __ARM_ARCH >= 6 12 #include <machine/cpu-v6.h> 13 #endif 14 15 void cpu_halt(void); 16 void swi_vm(void *); 17 18 #ifdef _KERNEL 19 static __inline uint64_t 20 get_cyclecount(void) 21 { 22 #if __ARM_ARCH >= 6 23 return cp15_pmccntr_get(); 24 #else /* No performance counters, so use binuptime(9). This is slooooow */ 25 struct bintime bt; 26 27 binuptime(&bt); 28 return ((uint64_t)bt.sec << 56 | bt.frac >> 8); 29 #endif 30 } 31 #endif 32 33 #define TRAPF_USERMODE(frame) ((frame->tf_spsr & PSR_MODE) == PSR_USR32_MODE) 34 35 #define TRAPF_PC(tfp) ((tfp)->tf_pc) 36 37 #define cpu_getstack(td) ((td)->td_frame->tf_usr_sp) 38 #define cpu_setstack(td, sp) ((td)->td_frame->tf_usr_sp = (sp)) 39 #define cpu_spinwait() /* nothing */ 40 41 #define ARM_NVEC 8 42 #define ARM_VEC_ALL 0xffffffff 43 44 extern vm_offset_t vector_page; 45 46 /* 47 * Params passed into initarm. If you change the size of this you will 48 * need to update locore.S to allocate more memory on the stack before 49 * it calls initarm. 50 */ 51 struct arm_boot_params { 52 register_t abp_size; /* Size of this structure */ 53 register_t abp_r0; /* r0 from the boot loader */ 54 register_t abp_r1; /* r1 from the boot loader */ 55 register_t abp_r2; /* r2 from the boot loader */ 56 register_t abp_r3; /* r3 from the boot loader */ 57 vm_offset_t abp_physaddr; /* The kernel physical address */ 58 vm_offset_t abp_pagetable; /* The early page table */ 59 }; 60 61 void arm_vector_init(vm_offset_t, int); 62 void fork_trampoline(void); 63 void identify_arm_cpu(void); 64 void *initarm(struct arm_boot_params *); 65 66 extern char btext[]; 67 extern char etext[]; 68 int badaddr_read(void *, size_t, void *); 69 #endif /* !MACHINE_CPU_H */ 70