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