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