source: mainline/contrib/arch/kernel/kernel.adl@ 97e7e8a

/*****************************
 * Kernel syscall interfaces *
 *****************************/

interface sys_klog {
                /* Print using kernel facility */
                sysarg_t sys_klog(int fd, const void *buf, size_t size);
        protocol:
                ?sys_klog*
};

interface sys_console {
                /* Enable kernel console */
                sysarg_t sys_debug_enable_console(void);
                
                /* Disable kernel console */
                sysarg_t sys_debug_disable_console(void);
        protocol:
                (
                        ?sys_debug_enable_console +
                        ?sys_debug_disable_console
                )*
};

interface sys_tls {
                /* Set thread-local storage pointer (on architectures where kernel mode is required) */
                sysarg_t sys_tls_set(sysarg_t addr);
        protocol:
                ?sys_tls_set*
};

interface sys_thread {
                /* Create new thread */
                sysarg_t sys_thread_create(uspace_arg_t *uspace_uarg, char *uspace_name, size_t name_len, thread_id_t *uspace_thread_id);
                
                /* Terminate current thread */
                sysarg_t sys_thread_exit(int uspace_status);
                
                /* Get current thread id */
                sysarg_t sys_thread_get_id(thread_id_t *uspace_thread_id);
        protocol:
                (
                        ?sys_thread_create +
                        ?sys_thread_get_id +
                        ?sys_thread_exit
                )*
};

interface sys_task {
                /* Set name fo the current task */
                sysarg_t sys_task_set_name(const char *uspace_name, size_t name_len);
                
                /* Get current task id */
                sysarg_t sys_task_get_id(task_id_t *uspace_task_id);
        protocol:
                (
                        ?sys_task_set_name +
                        ?sys_task_get_id
                )*
};

interface sys_program {
                /* Spawn a new instance of clonable loader service */
                sysarg_t sys_program_spawn_loader(char *uspace_name, size_t name_len);
        protocol:
                ?sys_program_spawn_loader*
};

interface sys_futex {
                /* Sleep in a futex wait queue */
                sysarg_t sys_futex_sleep_timeout(uintptr_t uaddr, uint32_t usec, int flags);
                
                /* Wakeup one thread waiting in futex wait queue */
                sysarg_t sys_futex_wakeup(uintptr_t uaddr);
        protocol:
                (
                        ?sys_futex_sleep_timeout +
                        ?sys_futex_wakeup
                )*
};

interface sys_smc {
                /* Enforce self-modifying code cache coherency */
                sysarg_t sys_smc_coherence(uintptr_t va, size_t size);
        protocol:
                ?sys_smc_coherence*
};

interface sys_as {
                /* Create new address space area */
                sysarg_t sys_as_area_create(uintptr_t address, size_t size, int flags);
                
                /* Resize an address space area */
                sysarg_t sys_as_area_resize(uinptr_t address, size_t size, int flags);
                
                /* Change flags of an address space area */
                sysarg_t sys_as_area_change_flags(uintptr_t address, int flags);
                
                /* Destroy an address space area */
                sysarg_t sys_as_area_destroy(uintptr_t address);
        protocol:
                (
                        ?sys_as_area_create +
                        ?sys_as_area_resize +
                        ?sys_as_area_change_flags +
                        ?sys_as_area_destroy
                )*
};

interface sys_ipc {
                /* Fast synchronous IPC call */
                sysarg_t sys_ipc_call_sync_fast(sysarg_t phoneid, sysarg_t method, sysarg_t arg1, sysarg_t arg2, sysarg_t arg3, ipc_data_t *data);
                
                /* Slow synchronous IPC call */
                sysarg_t sys_ipc_call_sync_slow(sysarg_t phoneid, ipc_data_t *question, ipc_data_t *answer);
                
                /* Fast asynchronous IPC call */
                sysarg_t sys_ipc_call_async_fast(sysarg_t phoneid, sysarg_t method, sysarg_t arg1, sysarg_t arg2, sysarg_t arg3, sysarg_t arg4);
                
                /* Slow asynchronous IPC call */
                sysarg_t sys_ipc_call_async_slow(sysarg_t phoneid, ipc_data_t *data);
                
                /* Fast forward a received IPC call to another destination */
                sysarg_t sys_ipc_forward_fast(sysarg_t callid, sysarg_t phoneid, sysarg_t method, sysarg_t arg1, sysarg_t arg2, int mode);
                
                /* Slow forward a received IPC call to another destination */
                sysarg_t sys_ipc_forward_slow(sysarg_t callid, sysarg_t phoneid, ipc_data_t *data, int mode);
                
                /* Fast answer an IPC call */
                sysarg_t sys_ipc_answer_fast(sysarg_t callid, sysarg_t retval, sysarg_t arg1, sysarg_t arg2, sysarg_t arg3, sysarg_t arg4);
                
                /* Slow answer an IPC call */
                sysarg_t sys_ipc_answer_slow(sysarg_t callid, ipc_data_t *data);
                
                /* Hang up a phone */
                sysarg_t sys_ipc_hangup(int phoneid);
                
                /* Wait for an incoming IPC call or answer */
                sysarg_t sys_ipc_wait_for_call(ipc_data_t *calldata, uint32_t usec, int flags);
                
                /* Interrupt one thread of the current task from waiting on IPC call */
                sysarg_t sys_ipc_poke(void);
        protocol:
                (
                        ?sys_ipc_call_sync_fast +
                        ?sys_ipc_call_sync_slow +
                        ?sys_ipc_call_async_fast +
                        ?sys_ipc_call_async_slow +
                        ?sys_ipc_forward_fast +
                        ?sys_ipc_forward_slow +
                        ?sys_ipc_answer_fast +
                        ?sys_ipc_answer_slow +
                        ?sys_ipc_hangup +
                        ?sys_ipc_wait_for_call +
                        ?sys_ipc_poke
                )*
};

interface sys_event {
                /* Subscribe to kernel event notifications */
                sysarg_t sys_event_subscribe(sysarg_t evno, sysarg_t method);
        protocol:
                ?sys_event_subscribe*
};

interface sys_cap {
                /* Grant capabilities to a task */
#ifdef __32_BITS__
                sysarg_t sys_cap_grant(sysarg64_t *uspace_taskid, cap_t caps);
#endif
                
#ifdef __64_BITS__
                sysarg_t sys_cap_grant(sysarg_t taskid, cap_t caps);
#endif
                
                /* Revoke capabilities from a task */
#ifdef __32_BITS__
                sysarg_t sys_cap_revoke(sysarg64_t *uspace_taskid, cap_t caps);
#endif
                
#ifdef __64_BITS__
                sysarg_t sys_cap_revoke(sysarg_t taskid, cap_t caps);
#endif
        protocol:
                (
                        ?sys_cap_grant +
                        ?sys_cap_rewoke
                )*
};

interface sys_ddi {
                /* Enable access I/O address space for the current task */
                sysarg_t sys_enable_iospace(ddi_ioarg_t *uspace_io_arg);
                
                /* Map physical memory to the current task's address space */
                sysarg_t sys_physmem_map(sysarg_t phys_base, sysarg_t virt_base, sysarg_t pages, sysarg_t flags);
                
                /* Enable or disable preemption */
                sysarg_t sys_preempt_control(int enable);
                
                /* Assign unique device number */
                sysarg_t sys_device_assign_devno(void);
                
                /* Connect an IRQ handler to the current task */
                sysarg_t sys_register_irq(inr_t inr, devno_t devno, sysarg_t method, irq_code_t *ucode);
                
                /* Disconnect an IRQ handler from the current task */
                sysarg_t sys_unregister_irq(inr_t inr, devno_t devno);
        protocol:
                (
                        ?sys_enable_iospace +
                        ?sys_physmem_map +
                        ?sys_device_assign_devno +
                        ?sys_preempt_control +
                        ?sys_register_irq +
                        ?sys_unregister_irq
                )*
};

interface sys_sysinfo {
                /* Check for sysinfo key validity */
                sysarg_t sys_sysinfo_valid(sysarg_t ptr, sysarg_t len);
                
                /* Get sysinfo key value */
                sysarg_t sys_sysinfo_value(unatice_t ptr, sysarg_t len);
        protocol:
                (
                        ?sys_sysinfo_valid +
                        ?sys_sysinfo_value
                )*
};

interface sys_debug {
                /* Connect to the kernel debugging answerbox of a given task */
#ifdef __32_BITS__
                sysarg_t sys_ipc_connect_kbox(sysarg64_t *uspace_taskid);
#endif
                
#ifdef __64_BITS__
                sysarg_t sys_ipc_connect_kbox(sysarg_t taskid);
#endif
        protocol:
                ?sys_ipc_connect_kbox*
};


/*****************************************************
 * Primitive kernel components (exported subsystems) *
 *****************************************************/

frame sys_console {
        provides:
                sys_klog sys_klog;
                sys_console sys_console;
};

frame sys_proc {
        provides:
                sys_tls sys_tls;
                sys_thread sys_thread;
                sys_task sys_task;
                sys_program sys_program;
};

frame sys_synch {
        provides:
                sys_futex sys_futex;
                sys_smc sys_smc;
};

frame sys_mm {
        provides:
                sys_as sys_as;
};

frame sys_ipc {
        provides:
                sys_ipc sys_ipc;
                sys_event sys_event;
};

frame sys_security {
        provides:
                sys_cap sys_cap;
};

frame sys_ddi {
        provides:
                sys_ddi sys_ddi;
};

frame sys_sysinfo {
        provides:
                sys_sysinfo sys_sysinfo;
};

frame sys_debug {
        provides:
                sys_debug sys_debug;
};


/******************************
 * Composite kernel component *
 ******************************/

architecture kernel {
        inst sys_console sys_console;
        inst sys_proc sys_proc;
        inst sys_synch sys_synch;
        inst sys_mm sys_mm;
        inst sys_ipc sys_ipc;
        inst sys_security sys_security;
        inst sys_ddi sys_ddi;
        inst sys_sysinfo sys_sysinfo;
        inst sys_debug sys_debug;
        
        delegate sys_klog to sys_console:sys_klog;
        delegate sys_console to sys_console:sys_console;
        delegate sys_tls to sys_proc:sys_tls;
        delegate sys_thread to sys_proc:sys_thread;
        delegate sys_task to sys_proc:sys_task;
        delegate sys_program to sys_proc:sys_program;
        delegate sys_futex to sys_synch:sys_futex;
        delegate sys_smc to sys_synch:sys_smc;
        delegate sys_as to sys_mm:sys_as;
        delegate sys_ipc to sys_ipc:sys_ipc;
        delegate sys_event to sys_ipc:sys_event;
        delegate sys_cap to sys_security:sys_cap;
        delegate sys_ddi to sys_ddi:sys_ddi;
        delegate sys_sysinfo to sys_sysinfo:sys_sysinfo;
        delegate sys_debug to sys_debug:sys_debug;
};