minix/kernel/proto.h

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