mirror of
https://github.com/darlinghq/darling-xnu.git
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193 lines
6.6 KiB
C
193 lines
6.6 KiB
C
/*
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* Copyright (c) 2008 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* Timer queue support routines.
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*/
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#ifndef _KERN_TIMER_QUEUE_H_
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#define _KERN_TIMER_QUEUE_H_
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#include <mach/mach_types.h>
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#ifdef MACH_KERNEL_PRIVATE
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#include <kern/mpqueue.h>
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#include <kern/queue.h>
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/* Kernel trace events associated with timers and timer queues */
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#define DECR_TRAP_LATENCY MACHDBG_CODE(DBG_MACH_EXCP_DECI, 0)
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#define DECR_SET_DEADLINE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 1)
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#define DECR_TIMER_CALLOUT MACHDBG_CODE(DBG_MACH_EXCP_DECI, 2)
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#define DECR_PM_DEADLINE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 3)
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#define DECR_TIMER_MIGRATE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 4)
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#if defined(i386) || defined(x86_64)
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#define DECR_RDHPET MACHDBG_CODE(DBG_MACH_EXCP_DECI, 5)
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#define DECR_SET_TSC_DEADLINE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 6)
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#define DECR_SET_APIC_DEADLINE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 16)
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#endif
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#define DECR_TIMER_ENTER MACHDBG_CODE(DBG_MACH_EXCP_DECI, 7)
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#define DECR_TIMER_CANCEL MACHDBG_CODE(DBG_MACH_EXCP_DECI, 8)
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#define DECR_TIMER_QUEUE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 9)
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#define DECR_TIMER_EXPIRE MACHDBG_CODE(DBG_MACH_EXCP_DECI,10)
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#define DECR_TIMER_ASYNC_DEQ MACHDBG_CODE(DBG_MACH_EXCP_DECI,11)
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#define DECR_TIMER_UPDATE MACHDBG_CODE(DBG_MACH_EXCP_DECI,12)
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#define DECR_TIMER_ESCALATE MACHDBG_CODE(DBG_MACH_EXCP_DECI,13)
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#define DECR_TIMER_OVERDUE MACHDBG_CODE(DBG_MACH_EXCP_DECI,14)
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#define DECR_TIMER_RESCAN MACHDBG_CODE(DBG_MACH_EXCP_DECI,15)
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/*
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* Invoked by kernel, implemented by platform.
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*/
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/* Request an expiration deadline, returns queue association */
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extern mpqueue_head_t * timer_queue_assign(
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uint64_t deadline);
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extern uint64_t timer_call_slop(
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uint64_t deadline,
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uint64_t armtime,
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uint32_t urgency,
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thread_t arming_thread,
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boolean_t *rlimited);
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extern boolean_t timer_resort_threshold(uint64_t);
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/* Cancel an associated expiration deadline and specify new deadline */
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extern void timer_queue_cancel(
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mpqueue_head_t *queue,
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uint64_t deadline,
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uint64_t new_deadline);
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/* Return a pointer to the local timer queue for a given cpu */
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extern mpqueue_head_t * timer_queue_cpu(
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int cpu);
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/* Call a function with argument on a cpu */
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extern void timer_call_cpu(
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int cpu,
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void (*fn)(void *),
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void *arg);
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/* Queue a function to be called with argument on a cpu */
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extern void timer_call_nosync_cpu(
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int cpu,
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void (*fn)(void *),
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void *arg);
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/*
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* Invoked by platform, implemented by kernel.
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*/
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/*
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* Invoked by kernel, implemented by platform.
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*/
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#define NUM_LATENCY_QOS_TIERS (6)
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typedef struct {
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uint32_t idle_entry_timer_processing_hdeadline_threshold_ns;
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uint32_t interrupt_timer_coalescing_ilat_threshold_ns;
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uint32_t timer_resort_threshold_ns;
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int32_t timer_coalesce_rt_shift;
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int32_t timer_coalesce_bg_shift;
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int32_t timer_coalesce_kt_shift;
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int32_t timer_coalesce_fp_shift;
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int32_t timer_coalesce_ts_shift;
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uint64_t timer_coalesce_rt_ns_max;
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uint64_t timer_coalesce_bg_ns_max;
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uint64_t timer_coalesce_kt_ns_max;
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uint64_t timer_coalesce_fp_ns_max;
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uint64_t timer_coalesce_ts_ns_max;
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uint32_t latency_qos_scale[NUM_LATENCY_QOS_TIERS];
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uint64_t latency_qos_ns_max[NUM_LATENCY_QOS_TIERS];
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boolean_t latency_tier_rate_limited[NUM_LATENCY_QOS_TIERS];
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} timer_coalescing_priority_params_ns_t;
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extern timer_coalescing_priority_params_ns_t * timer_call_get_priority_params(void);
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extern uint64_t timer_call_slop(
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uint64_t deadline,
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uint64_t armtime,
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uint32_t urgency,
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thread_t arming_thread,
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boolean_t *rlimited);
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/* Process deadline expiration for queue, returns new deadline */
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extern uint64_t timer_queue_expire(
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mpqueue_head_t *queue,
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uint64_t deadline);
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extern uint64_t timer_queue_expire_with_options(
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mpqueue_head_t *,
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uint64_t,
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boolean_t);
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/* Shutdown a timer queue and reassign existing activities */
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extern void timer_queue_shutdown(
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mpqueue_head_t *queue);
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/* Move timer requests from one queue to another */
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extern int timer_queue_migrate(
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mpqueue_head_t *from,
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mpqueue_head_t *to);
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/*
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* Invoked by platform, implemented by platfrom.
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*/
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extern void timer_intr(int inuser, uint64_t iaddr);
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#if defined(i386) || defined(x86_64)
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extern uint64_t setPop(uint64_t time);
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#else
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extern int setPop(uint64_t time);
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#endif
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extern void timer_resync_deadlines(void);
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extern void timer_queue_expire_local(void *arg);
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extern void timer_set_deadline(uint64_t deadline);
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/* Migrate the local timer queue of a given cpu to the master cpu */
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extern uint32_t timer_queue_migrate_cpu(int target_cpu);
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extern void timer_queue_trace(
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mpqueue_head_t *queue);
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extern void timer_queue_trace_cpu(int cpu);
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extern uint64_t timer_sysctl_get(int oid);
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extern int timer_sysctl_set(int oid, uint64_t value);
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#endif /* MACH_KERNEL_PRIVATE */
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#endif /* _KERN_TIMER_QUEUE_H_ */
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