758d788bbe
- we must not deliver messages from/to unstable address spaces. In such a case, we must postpone the delivery. To make sute that a process which is expecting an asynchronous message does not starve, we must remember that we skipped delivery of some messages and we must try to deliver again once the source address space is stable again.
241 lines
10 KiB
C
241 lines
10 KiB
C
/* Function prototypes. */
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/* FIXME this is a hack how to avoid inclusion conflicts */
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#ifdef __kernel__
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#ifndef PROTO_H
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#define PROTO_H
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#include <minix/safecopies.h>
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#include <machine/archtypes.h>
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#include <sys/sigcontext.h>
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#include <a.out.h>
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/* Struct declarations. */
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struct proc;
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struct timer;
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/* clock.c */
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_PROTOTYPE( clock_t get_uptime, (void) );
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_PROTOTYPE( void set_timer, (struct timer *tp, clock_t t, tmr_func_t f) );
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_PROTOTYPE( void reset_timer, (struct timer *tp) );
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_PROTOTYPE( void ser_dump_proc, (void) );
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_PROTOTYPE( void cycles_accounting_init, (void) );
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/*
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* This functions start and stop accounting for process, kernel or idle cycles.
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* It inherently have to account for some kernel cycles for process too,
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* therefore it should be called asap after trapping to kernel and as late as
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* possible before returning to userspace. These function is architecture
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* dependent
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*/
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_PROTOTYPE( void context_stop, (struct proc * p) );
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/* this is a wrapper to make calling it from assembly easier */
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_PROTOTYPE( void context_stop_idle, (void) );
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_PROTOTYPE( void restore_fpu, (struct proc *) );
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_PROTOTYPE( void save_fpu, (struct proc *) );
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_PROTOTYPE( void save_local_fpu, (struct proc *) );
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_PROTOTYPE( void fpu_sigcontext, (struct proc *, struct sigframe *fr, struct sigcontext *sc) );
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/* main.c */
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_PROTOTYPE( int main, (void) );
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_PROTOTYPE( void prepare_shutdown, (int how) );
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_PROTOTYPE( __dead void minix_shutdown, (struct timer *tp) );
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_PROTOTYPE( void bsp_finish_booting, (void) );
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/* proc.c */
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_PROTOTYPE( int do_ipc, (reg_t r1, reg_t r2, reg_t r3) );
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_PROTOTYPE( void proc_init, (void) );
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_PROTOTYPE( int cancel_async, (struct proc *src, struct proc *dst) );
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_PROTOTYPE( int has_pending_notify, (struct proc * caller, int src_p) );
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_PROTOTYPE( int has_pending_asend, (struct proc * caller, int src_p) );
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_PROTOTYPE( void unset_notify_pending, (struct proc * caller, int src_p));
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_PROTOTYPE( int mini_notify, (const struct proc *src, endpoint_t dst) );
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_PROTOTYPE( void enqueue, (struct proc *rp) );
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_PROTOTYPE( void dequeue, (struct proc *rp) );
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_PROTOTYPE( void switch_to_user, (void) );
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_PROTOTYPE( struct proc * arch_finish_switch_to_user, (void) );
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_PROTOTYPE( struct proc *endpoint_lookup, (endpoint_t ep) );
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#if DEBUG_ENABLE_IPC_WARNINGS
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_PROTOTYPE( int isokendpt_f, (const char *file, int line, endpoint_t e, int *p, int f));
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#define isokendpt_d(e, p, f) isokendpt_f(__FILE__, __LINE__, (e), (p), (f))
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#else
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_PROTOTYPE( int isokendpt_f, (endpoint_t e, int *p, int f) );
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#define isokendpt_d(e, p, f) isokendpt_f((e), (p), (f))
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#endif
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_PROTOTYPE( void proc_no_time, (struct proc *p));
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_PROTOTYPE( void reset_proc_accounting, (struct proc *p));
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_PROTOTYPE( void flag_account, (struct proc *p, int flag));
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_PROTOTYPE( int try_deliver_senda, (struct proc *caller_ptr,
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asynmsg_t *table,
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size_t size) );
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/* start.c */
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_PROTOTYPE( void cstart, (u16_t cs, u16_t ds, u16_t mds,
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u16_t parmoff, u16_t parmsize) );
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_PROTOTYPE( char *env_get, (const char *key));
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/* system.c */
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_PROTOTYPE( int get_priv, (register struct proc *rc, int proc_type) );
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_PROTOTYPE( void set_sendto_bit, (const struct proc *rc, int id) );
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_PROTOTYPE( void unset_sendto_bit, (const struct proc *rc, int id) );
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_PROTOTYPE( void fill_sendto_mask, (const struct proc *rc,
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sys_map_t *map) );
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_PROTOTYPE( void send_sig, (endpoint_t proc_nr, int sig_nr) );
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_PROTOTYPE( void cause_sig, (proc_nr_t proc_nr, int sig_nr) );
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_PROTOTYPE( void sig_delay_done, (struct proc *rp) );
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_PROTOTYPE( void kernel_call, (message *m_user, struct proc * caller) );
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_PROTOTYPE( void system_init, (void) );
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#define numap_local(proc_nr, vir_addr, bytes) \
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umap_local(proc_addr(proc_nr), D, (vir_addr), (bytes))
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_PROTOTYPE( void clear_endpoint, (struct proc *rc) );
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_PROTOTYPE( void clear_ipc_refs, (struct proc *rc, int caller_ret) );
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_PROTOTYPE( phys_bytes umap_bios, (vir_bytes vir_addr, vir_bytes bytes));
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_PROTOTYPE( void kernel_call_resume, (struct proc *p));
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_PROTOTYPE( int sched_proc, (struct proc *rp,
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int priority, int quantum, int cpu));
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/* system/do_newmap.c */
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_PROTOTYPE( int newmap, (struct proc * caller, struct proc *rp,
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struct mem_map *map_ptr));
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/* system/do_vtimer.c */
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_PROTOTYPE( void vtimer_check, (struct proc *rp) );
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/* interrupt.c */
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_PROTOTYPE( void put_irq_handler, (irq_hook_t *hook, int irq,
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irq_handler_t handler) );
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_PROTOTYPE( void rm_irq_handler, (const irq_hook_t *hook) );
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_PROTOTYPE( void enable_irq, (const irq_hook_t *hook) );
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_PROTOTYPE( int disable_irq, (const irq_hook_t *hook) );
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_PROTOTYPE(void interrupts_enable, (void));
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_PROTOTYPE(void interrupts_disable, (void));
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/* debug.c */
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_PROTOTYPE( int runqueues_ok, (void) );
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#ifndef CONFIG_SMP
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#define runqueues_ok_local runqueues_ok
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#else
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#define runqueues_ok_local() runqueues_ok_cpu(cpuid)
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_PROTOTYPE( int runqueues_ok_cpu, (unsigned cpu));
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#endif
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_PROTOTYPE( char *rtsflagstr, (u32_t flags) );
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_PROTOTYPE( char *miscflagstr, (u32_t flags) );
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_PROTOTYPE( char *schedulerstr, (struct proc *scheduler) );
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/* prints process information */
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_PROTOTYPE( void print_proc, (struct proc *pp));
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/* prints the given process and recursively all processes it depends on */
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_PROTOTYPE( void print_proc_recursive, (struct proc *pp));
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#if DEBUG_IPC_HOOK
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_PROTOTYPE( void hook_ipc_msgrecv, (message *msg, struct proc *src,
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struct proc *dst) );
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_PROTOTYPE( void hook_ipc_msgsend, (message *msg, struct proc *src,
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struct proc *dst) );
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_PROTOTYPE( void hook_ipc_msgkcall, (message *msg, struct proc *proc) );
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_PROTOTYPE( void hook_ipc_msgkresult, (message *msg, struct proc *proc) );
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_PROTOTYPE( void hook_ipc_clear, (struct proc *proc) );
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#endif
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/* system/do_safemap.c */
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_PROTOTYPE( int map_invoke_vm, (struct proc * caller, int req_type,
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endpoint_t end_d, int seg_d, vir_bytes off_d,
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endpoint_t end_s, int seg_s, vir_bytes off_s,
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size_t size, int flag));
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/* system/do_safecopy.c */
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_PROTOTYPE( int verify_grant, (endpoint_t, endpoint_t,
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cp_grant_id_t, vir_bytes, int,
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vir_bytes, vir_bytes *, endpoint_t *));
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/* system/do_sysctl.c */
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_PROTOTYPE( int do_sysctl, (struct proc * caller, message *m));
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#if SPROFILE
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/* profile.c */
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_PROTOTYPE( void init_profile_clock, (u32_t) );
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_PROTOTYPE( void stop_profile_clock, (void) );
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#endif
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/* functions defined in architecture-dependent files. */
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_PROTOTYPE( void prot_init, (void) );
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_PROTOTYPE( phys_bytes phys_copy, (phys_bytes source, phys_bytes dest,
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phys_bytes count) );
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_PROTOTYPE( void phys_copy_fault, (void));
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_PROTOTYPE( void phys_copy_fault_in_kernel, (void));
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#define virtual_copy(src, dst, bytes) \
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virtual_copy_f(NULL, src, dst, bytes, 0)
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#define virtual_copy_vmcheck(caller, src, dst, bytes) \
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virtual_copy_f(caller, src, dst, bytes, 1)
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_PROTOTYPE( int virtual_copy_f, (struct proc * caller,
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struct vir_addr *src, struct vir_addr *dst,
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vir_bytes bytes, int vmcheck) );
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_PROTOTYPE( int data_copy, (endpoint_t from, vir_bytes from_addr,
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endpoint_t to, vir_bytes to_addr, size_t bytes));
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_PROTOTYPE( int data_copy_vmcheck, (struct proc *,
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endpoint_t from, vir_bytes from_addr,
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endpoint_t to, vir_bytes to_addr, size_t bytes));
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_PROTOTYPE( void alloc_segments, (struct proc *rp) );
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_PROTOTYPE( void vm_stop, (void) );
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_PROTOTYPE( phys_bytes umap_local, (register struct proc *rp, int seg,
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vir_bytes vir_addr, vir_bytes bytes));
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_PROTOTYPE( phys_bytes umap_virtual, (struct proc* rp,
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int seg, vir_bytes vir_addr, vir_bytes bytes) );
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_PROTOTYPE( phys_bytes seg2phys, (u16_t) );
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_PROTOTYPE( int vm_phys_memset, (phys_bytes source, u8_t pattern,
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phys_bytes count) );
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_PROTOTYPE( int intr_init, (int, int) );
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_PROTOTYPE( void halt_cpu, (void) );
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_PROTOTYPE( void arch_init, (void) );
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_PROTOTYPE( void cpu_identify, (void) );
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/* arch dependent FPU initialization per CPU */
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_PROTOTYPE( void fpu_init, (void) );
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/* returns true if pfu is present and initialized */
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_PROTOTYPE( int is_fpu, (void) );
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_PROTOTYPE( void ser_putc, (char) );
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_PROTOTYPE( __dead void arch_shutdown, (int) );
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_PROTOTYPE( __dead void arch_monitor, (void) );
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#if !defined(__ELF__)
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_PROTOTYPE( void arch_get_aout_headers, (int i, struct exec *h) );
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#endif
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_PROTOTYPE( void restore_user_context, (struct proc * p) );
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_PROTOTYPE( void read_tsc, (u32_t *high, u32_t *low) );
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_PROTOTYPE( int arch_init_profile_clock, (u32_t freq) );
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_PROTOTYPE( void arch_stop_profile_clock, (void) );
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_PROTOTYPE( void arch_ack_profile_clock, (void) );
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_PROTOTYPE( void do_ser_debug, (void) );
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_PROTOTYPE( int arch_get_params, (char *parm, int max));
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_PROTOTYPE( int arch_set_params, (char *parm, int max));
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_PROTOTYPE( void arch_pre_exec, (struct proc *pr, u32_t, u32_t));
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_PROTOTYPE( int arch_umap, (const struct proc *pr, vir_bytes, vir_bytes,
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int, phys_bytes *));
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_PROTOTYPE( int arch_do_vmctl, (message *m_ptr, struct proc *p));
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_PROTOTYPE( int vm_contiguous, (const struct proc *targetproc, vir_bytes vir_buf, size_t count));
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_PROTOTYPE( void proc_stacktrace, (struct proc *proc) );
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_PROTOTYPE( int vm_lookup, (const struct proc *proc, vir_bytes virtual, phys_bytes *result, u32_t *ptent));
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_PROTOTYPE( void delivermsg, (struct proc *target));
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_PROTOTYPE( void arch_do_syscall, (struct proc *proc) );
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_PROTOTYPE( int arch_phys_map, (int index, phys_bytes *addr,
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phys_bytes *len, int *flags));
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_PROTOTYPE( int arch_phys_map_reply, (int index, vir_bytes addr));
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_PROTOTYPE( int arch_enable_paging, (struct proc * caller, const message * m_ptr));
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_PROTOTYPE( int copy_msg_from_user, (struct proc * p, message * user_mbuf,
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message * dst));
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_PROTOTYPE( int copy_msg_to_user, (struct proc * p, message * src,
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message * user_mbuf));
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_PROTOTYPE(void switch_address_space, (struct proc * p));
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_PROTOTYPE(void release_address_space, (struct proc *pr));
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_PROTOTYPE(void enable_fpu_exception, (void));
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_PROTOTYPE(void disable_fpu_exception, (void));
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_PROTOTYPE(void release_fpu, (struct proc * p));
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_PROTOTYPE(void arch_pause,(void));
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_PROTOTYPE(short cpu_load, (void));
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/* utility.c */
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_PROTOTYPE( void cpu_print_freq, (unsigned cpu));
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#endif /* __kernel__ */
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#endif /* PROTO_H */
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