1 /* Function prototypes. */ 2 3 /* FIXME this is a hack how to avoid inclusion conflicts */ 4 #ifdef __kernel__ 5 6 #ifndef PROTO_H 7 #define PROTO_H 8 9 #include <minix/safecopies.h> 10 #include <machine/archtypes.h> 11 #include <machine/signal.h> 12 #include <machine/frame.h> 13 14 /* Struct declarations. */ 15 struct proc; 16 struct ipc_filter_s; 17 18 /* clock.c */ 19 clock_t get_realtime(void); 20 void set_realtime(clock_t); 21 void set_adjtime_delta(int32_t); 22 clock_t get_monotonic(void); 23 void set_kernel_timer(minix_timer_t *tp, clock_t t, tmr_func_t f); 24 void reset_kernel_timer(minix_timer_t *tp); 25 void ser_dump_proc(void); 26 27 void cycles_accounting_init(void); 28 /* 29 * This functions start and stop accounting for process, kernel or idle cycles. 30 * It inherently have to account for some kernel cycles for process too, 31 * therefore it should be called asap after trapping to kernel and as late as 32 * possible before returning to userspace. These function is architecture 33 * dependent 34 */ 35 void context_stop(struct proc * p); 36 /* this is a wrapper to make calling it from assembly easier */ 37 void context_stop_idle(void); 38 int restore_fpu(struct proc *); 39 void save_fpu(struct proc *); 40 void save_local_fpu(struct proc *, int retain); 41 void fpu_sigcontext(struct proc *, struct sigframe_sigcontext *fr, struct 42 sigcontext *sc); 43 44 /* main.c */ 45 #ifndef UNPAGED 46 #define kmain __k_unpaged_kmain 47 #endif 48 void kmain(kinfo_t *cbi); 49 void prepare_shutdown(int how); 50 __dead void minix_shutdown(minix_timer_t *tp); 51 void bsp_finish_booting(void); 52 53 /* proc.c */ 54 55 int do_ipc(reg_t r1, reg_t r2, reg_t r3); 56 void proc_init(void); 57 int cancel_async(struct proc *src, struct proc *dst); 58 int has_pending_notify(struct proc * caller, int src_p); 59 int has_pending_asend(struct proc * caller, int src_p); 60 void unset_notify_pending(struct proc * caller, int src_p); 61 int mini_notify(const struct proc *src, endpoint_t dst); 62 void vm_suspend(struct proc *caller, const struct proc *target, 63 const vir_bytes linaddr, const vir_bytes len, const int type, 64 const int writeflag); 65 void enqueue(struct proc *rp); 66 void dequeue(struct proc *rp); 67 void switch_to_user(void); 68 void arch_proc_reset(struct proc *rp); 69 void arch_proc_setcontext(struct proc *rp, struct stackframe_s *state, 70 int user, int restorestyle); 71 struct proc * arch_finish_switch_to_user(void); 72 struct proc *endpoint_lookup(endpoint_t ep); 73 #if DEBUG_ENABLE_IPC_WARNINGS 74 int isokendpt_f(const char *file, int line, endpoint_t e, int *p, int 75 f); 76 #define isokendpt_d(e, p, f) isokendpt_f(__FILE__, __LINE__, (e), (p), (f)) 77 #else 78 int isokendpt_f(endpoint_t e, int *p, int f); 79 #define isokendpt_d(e, p, f) isokendpt_f((e), (p), (f)) 80 #endif 81 void proc_no_time(struct proc *p); 82 void reset_proc_accounting(struct proc *p); 83 void increase_proc_signals(struct proc *p); 84 void flag_account(struct proc *p, int flag); 85 int try_deliver_senda(struct proc *caller_ptr, asynmsg_t *table, size_t 86 size); 87 88 /* start.c */ 89 void cstart(); 90 char *env_get(const char *key); 91 92 /* system.c */ 93 int get_priv(register struct proc *rc, int proc_type); 94 void set_sendto_bit(const struct proc *rc, int id); 95 void unset_sendto_bit(const struct proc *rc, int id); 96 void fill_sendto_mask(const struct proc *rc, sys_map_t *map); 97 int send_sig(endpoint_t proc_nr, int sig_nr); 98 void cause_sig(proc_nr_t proc_nr, int sig_nr); 99 void sig_delay_done(struct proc *rp); 100 void send_diag_sig(void); 101 void kernel_call(message *m_user, struct proc * caller); 102 void system_init(void); 103 void clear_endpoint(struct proc *rc); 104 void clear_ipc_refs(struct proc *rc, int caller_ret); 105 void kernel_call_resume(struct proc *p); 106 int sched_proc(struct proc *rp, int priority, int quantum, int cpu); 107 int add_ipc_filter(struct proc *rp, int type, 108 vir_bytes address, size_t length); 109 void clear_ipc_filters(struct proc *rp); 110 int check_ipc_filter(struct ipc_filter_s *ipcf, int fill_flags); 111 int allow_ipc_filtered_msg(struct proc *rp, endpoint_t src_e, 112 vir_bytes m_src_v, message *m_src_p); 113 int allow_ipc_filtered_memreq(struct proc *src_rp, struct proc *dst_rp); 114 int priv_add_irq(struct proc *rp, int irq); 115 int priv_add_io(struct proc *rp, struct io_range *ior); 116 int priv_add_mem(struct proc *rp, struct minix_mem_range *memr); 117 118 /* system/do_vtimer.c */ 119 void vtimer_check(struct proc *rp); 120 121 /* interrupt.c */ 122 void put_irq_handler(irq_hook_t *hook, int irq, irq_handler_t handler); 123 void rm_irq_handler(const irq_hook_t *hook); 124 void enable_irq(const irq_hook_t *hook); 125 int disable_irq(const irq_hook_t *hook); 126 127 void interrupts_enable(void); 128 void interrupts_disable(void); 129 130 /* debug.c */ 131 int runqueues_ok(void); 132 #ifndef CONFIG_SMP 133 #define runqueues_ok_local runqueues_ok 134 #else 135 #define runqueues_ok_local() runqueues_ok_cpu(cpuid) 136 int runqueues_ok_cpu(unsigned cpu); 137 #endif 138 char *rtsflagstr(u32_t flags); 139 char *miscflagstr(u32_t flags); 140 char *schedulerstr(struct proc *scheduler); 141 /* prints process information */ 142 void print_proc(struct proc *pp); 143 /* prints the given process and recursively all processes it depends on */ 144 void print_proc_recursive(struct proc *pp); 145 void printmsg(message *msg, struct proc *src, struct proc *dst, 146 char operation, int printparams); 147 #if DEBUG_IPC_HOOK 148 void hook_ipc_msgrecv(message *msg, struct proc *src, struct proc *dst); 149 void hook_ipc_msgsend(message *msg, struct proc *src, struct proc *dst); 150 void hook_ipc_msgkcall(message *msg, struct proc *proc); 151 void hook_ipc_msgkresult(message *msg, struct proc *proc); 152 void hook_ipc_clear(struct proc *proc); 153 #endif 154 155 /* system/do_safecopy.c */ 156 int verify_grant(endpoint_t, endpoint_t, cp_grant_id_t, vir_bytes, int, 157 vir_bytes, vir_bytes *, endpoint_t *, u32_t *); 158 159 /* system/do_diagctl.c */ 160 int do_diagctl(struct proc * caller, message *m); 161 162 #if SPROFILE 163 /* profile.c */ 164 void init_profile_clock(u32_t); 165 void stop_profile_clock(void); 166 #endif 167 168 /* functions defined in architecture-dependent files. */ 169 void prot_init(); 170 void arch_post_init(); 171 void arch_set_secondary_ipc_return(struct proc *, u32_t val); 172 phys_bytes phys_copy(phys_bytes source, phys_bytes dest, phys_bytes 173 count); 174 void phys_copy_fault(void); 175 void phys_copy_fault_in_kernel(void); 176 void memset_fault(void); 177 void memset_fault_in_kernel(void); 178 #define virtual_copy(src, dst, bytes) \ 179 virtual_copy_f(NULL, src, dst, bytes, 0) 180 #define virtual_copy_vmcheck(caller, src, dst, bytes) \ 181 virtual_copy_f(caller, src, dst, bytes, 1) 182 int virtual_copy_f(struct proc * caller, struct vir_addr *src, struct 183 vir_addr *dst, vir_bytes bytes, int vmcheck); 184 int data_copy(endpoint_t from, vir_bytes from_addr, endpoint_t to, 185 vir_bytes to_addr, size_t bytes); 186 int data_copy_vmcheck(struct proc *, endpoint_t from, vir_bytes 187 from_addr, endpoint_t to, vir_bytes to_addr, size_t bytes); 188 phys_bytes umap_virtual(struct proc* rp, int seg, vir_bytes vir_addr, 189 vir_bytes bytes); 190 phys_bytes seg2phys(u16_t); 191 int vm_memset(struct proc *caller, endpoint_t who, phys_bytes dst, 192 int pattern, phys_bytes count); 193 int intr_init(int); 194 void halt_cpu(void); 195 void arch_init(void); 196 void arch_boot_proc(struct boot_image *b, struct proc *p); 197 void cpu_identify(void); 198 /* arch dependent FPU initialization per CPU */ 199 void fpu_init(void); 200 /* returns true if pfu is present and initialized */ 201 int is_fpu(void); 202 void ser_putc(char); 203 __dead void arch_shutdown(int); 204 void restore_user_context(struct proc * p); 205 void read_tsc(u32_t *high, u32_t *low); 206 int arch_init_profile_clock(u32_t freq); 207 void arch_stop_profile_clock(void); 208 void arch_ack_profile_clock(void); 209 void do_ser_debug(void); 210 int arch_get_params(char *parm, int max); 211 void memory_init(void); 212 void mem_clear_mapcache(void); 213 void arch_proc_init(struct proc *pr, u32_t, u32_t, u32_t, char *); 214 int arch_do_vmctl(message *m_ptr, struct proc *p); 215 int vm_contiguous(const struct proc *targetproc, vir_bytes vir_buf, 216 size_t count); 217 void proc_stacktrace(struct proc *proc); 218 int vm_lookup(const struct proc *proc, vir_bytes virtual, phys_bytes 219 *result, u32_t *ptent); 220 size_t vm_lookup_range(const struct proc *proc, 221 vir_bytes vir_addr, phys_bytes *phys_addr, size_t bytes); 222 void arch_do_syscall(struct proc *proc); 223 int arch_phys_map(int index, phys_bytes *addr, phys_bytes *len, int 224 *flags); 225 int arch_phys_map_reply(int index, vir_bytes addr); 226 reg_t arch_get_sp(struct proc *p); 227 int arch_enable_paging(struct proc * caller); 228 int vm_check_range(struct proc *caller, 229 struct proc *target, vir_bytes vir_addr, size_t bytes, int writable); 230 231 int copy_msg_from_user(message * user_mbuf, message * dst); 232 int copy_msg_to_user(message * src, message * user_mbuf); 233 void switch_address_space(struct proc * p); 234 void release_address_space(struct proc *pr); 235 236 void enable_fpu_exception(void); 237 void disable_fpu_exception(void); 238 void release_fpu(struct proc * p); 239 void arch_pause(void); 240 short cpu_load(void); 241 void busy_delay_ms(int ms); 242 243 /* utility.c */ 244 void cpu_print_freq(unsigned cpu); 245 #endif /* __kernel__ */ 246 247 #endif /* PROTO_H */ 248