* Copyright (c) 2000-2008 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
-#ifndef _KERN_MACHINE_H_
-#define _KERN_MACHINE_H_
+#ifndef _KERN_MACHINE_H_
+#define _KERN_MACHINE_H_
#include <mach/kern_return.h>
#include <mach/processor_info.h>
#include <kern/kern_types.h>
+#include <kern/thread_group.h>
+
+#include <kern/work_interval.h>
+
+#include <kern/sched_urgency.h>
/*
* Machine support declarations.
*/
-extern void processor_up(
- processor_t processor);
+extern void processor_up(
+ processor_t processor);
-extern void processor_offline(
- processor_t processor);
-
-extern void processor_start_thread(void *machine_param);
+extern void processor_start_thread(void *machine_param,
+ wait_result_t result);
/*
* Must be implemented in machine dependent code.
/* Initialize machine dependent ast code */
extern void init_ast_check(
- processor_t processor);
+ processor_t processor);
/* Cause check for ast */
extern void cause_ast_check(
- processor_t processor);
+ processor_t processor);
extern kern_return_t cpu_control(
- int slot_num,
- processor_info_t info,
- unsigned int count);
+ int slot_num,
+ processor_info_t info,
+ unsigned int count);
-extern void cpu_sleep(void);
+extern void cpu_sleep(void);
extern kern_return_t cpu_start(
- int slot_num);
+ int slot_num);
extern void cpu_exit_wait(
- int slot_num);
+ int slot_num);
+
+extern boolean_t cpu_can_exit(
+ int slot_num);
extern kern_return_t cpu_info(
- processor_flavor_t flavor,
- int slot_num,
- processor_info_t info,
- unsigned int *count);
+ processor_flavor_t flavor,
+ int slot_num,
+ processor_info_t info,
+ unsigned int *count);
extern kern_return_t cpu_info_count(
- processor_flavor_t flavor,
- unsigned int *count);
+ processor_flavor_t flavor,
+ unsigned int *count);
-extern thread_t machine_processor_shutdown(
- thread_t thread,
- void (*doshutdown)(processor_t),
- processor_t processor);
+extern thread_t machine_processor_shutdown(
+ thread_t thread,
+ void (*doshutdown)(processor_t),
+ processor_t processor);
extern void machine_idle(void);
extern void machine_track_platform_idle(boolean_t);
+/* Signals a processor to bring it out of idle */
extern void machine_signal_idle(
- processor_t processor);
+ processor_t processor);
+
+/* Signals a processor to bring it out of idle unless canceled */
+extern void machine_signal_idle_deferred(
+ processor_t processor);
+
+/* Cancels an outstanding machine_signal_idle_deferred, if this is supported */
+extern void machine_signal_idle_cancel(
+ processor_t processor);
extern void halt_cpu(void);
extern void halt_all_cpus(
- boolean_t reboot);
+ boolean_t reboot);
extern char *machine_boot_info(
- char *buf,
- vm_size_t buf_len);
+ char *buf,
+ vm_size_t buf_len);
/*
* Machine-dependent routine to fill in an array with up to callstack_max
* levels of return pc information.
*/
extern void machine_callstack(
- uintptr_t *buf,
- vm_size_t callstack_max);
+ uintptr_t *buf,
+ vm_size_t callstack_max);
extern void consider_machine_collect(void);
-#endif /* _KERN_MACHINE_H_ */
+/*
+ * Machine-dependent routine to inform platform layer and external
+ * CPU power management about context switches
+ */
+
+extern void machine_thread_going_on_core(thread_t new_thread,
+ thread_urgency_t urgency,
+ uint64_t sched_latency,
+ uint64_t same_pri_latency,
+ uint64_t dispatch_time);
+
+extern void machine_thread_going_off_core(thread_t old_thread, boolean_t thread_terminating,
+ uint64_t last_dispatch, boolean_t thread_runnable);
+
+extern void machine_max_runnable_latency(uint64_t bg_max_latency,
+ uint64_t default_max_latency,
+ uint64_t realtime_max_latency);
+
+extern void machine_work_interval_notify(thread_t thread, struct kern_work_interval_args* kwi_args);
+
+
+extern void machine_perfcontrol_deadline_passed(uint64_t deadline);
+
+extern void machine_switch_perfcontrol_context(perfcontrol_event event,
+ uint64_t timestamp,
+ uint32_t flags,
+ uint64_t new_thread_same_pri_latency,
+ thread_t old,
+ thread_t new);
+
+extern void machine_switch_perfcontrol_state_update(perfcontrol_event event,
+ uint64_t timestamp,
+ uint32_t flags,
+ thread_t thread);
+
+#if CONFIG_THREAD_GROUPS
+extern void machine_thread_group_init(struct thread_group *tg);
+extern void machine_thread_group_deinit(struct thread_group *tg);
+extern void machine_thread_group_flags_update(struct thread_group *tg, uint32_t flags);
+extern void machine_thread_group_blocked(struct thread_group *tg_blocked, struct thread_group *tg_blocking, uint32_t flags, thread_t blocked_thread);
+extern void machine_thread_group_unblocked(struct thread_group *tg_unblocked, struct thread_group *tg_unblocking, uint32_t flags, thread_t unblocked_thread);
+#endif
+
+#endif /* _KERN_MACHINE_H_ */
projects / apple / xnu.git / blobdiff