120 lines
5.2 KiB
C
120 lines
5.2 KiB
C
/*
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* Copyright (c) 2017 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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#ifndef _PTHREAD_WORKQUEUE_PRIVATE_H_
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#define _PTHREAD_WORKQUEUE_PRIVATE_H_
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#include <stdint.h>
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#if XNU_KERNEL_PRIVATE && !defined(__PTHREAD_EXPOSE_INTERNALS__)
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#define __PTHREAD_EXPOSE_INTERNALS__ 1
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#endif // XNU_KERNEL_PRIVATE
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#ifdef __PTHREAD_EXPOSE_INTERNALS__
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/* workq_kernreturn commands */
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#define WQOPS_THREAD_RETURN 0x004 /* parks the thread back into the kernel */
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#define WQOPS_QUEUE_NEWSPISUPP 0x010 /* this is to check for newer SPI support */
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#define WQOPS_QUEUE_REQTHREADS 0x020 /* request number of threads of a prio */
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#define WQOPS_QUEUE_REQTHREADS2 0x030 /* request a number of threads in a given priority bucket */
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#define WQOPS_THREAD_KEVENT_RETURN 0x040 /* parks the thread after delivering the passed kevent array */
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#define WQOPS_SET_EVENT_MANAGER_PRIORITY 0x080 /* max() in the provided priority in the the priority of the event manager */
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#define WQOPS_THREAD_WORKLOOP_RETURN 0x100 /* parks the thread after delivering the passed kevent array */
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#define WQOPS_SHOULD_NARROW 0x200 /* checks whether we should narrow our concurrency */
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#define WQOPS_SETUP_DISPATCH 0x400 /* setup pthread workqueue-related operations */
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/* flag values for upcall flags field, only 8 bits per struct threadlist */
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#define WQ_FLAG_THREAD_PRIO_SCHED 0x00008000
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#define WQ_FLAG_THREAD_PRIO_QOS 0x00004000
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#define WQ_FLAG_THREAD_PRIO_MASK 0x00000fff
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#define WQ_FLAG_THREAD_OVERCOMMIT 0x00010000 /* thread is with overcommit prio */
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#define WQ_FLAG_THREAD_REUSE 0x00020000 /* thread is being reused */
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#define WQ_FLAG_THREAD_NEWSPI 0x00040000 /* the call is with new SPIs */
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#define WQ_FLAG_THREAD_KEVENT 0x00080000 /* thread is response to kevent req */
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#define WQ_FLAG_THREAD_EVENT_MANAGER 0x00100000 /* event manager thread */
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#define WQ_FLAG_THREAD_TSD_BASE_SET 0x00200000 /* tsd base has already been set */
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#define WQ_FLAG_THREAD_WORKLOOP 0x00400000 /* workloop thread */
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#define WQ_FLAG_THREAD_OUTSIDEQOS 0x00800000 /* thread qos changes should not be sent to kernel */
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#define WQ_FLAG_THREAD_COOPERATIVE 0x01000000 /* thread is part of cooperative thread pool */
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#define WQ_KEVENT_LIST_LEN 16 // WORKQ_KEVENT_EVENT_BUFFER_LEN
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#define WQ_KEVENT_DATA_SIZE (32 * 1024)
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/* kqueue_workloop_ctl commands */
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#define KQ_WORKLOOP_CREATE 0x01
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#define KQ_WORKLOOP_DESTROY 0x02
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/* indicate which fields of kq_workloop_create params are valid */
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#define KQ_WORKLOOP_CREATE_SCHED_PRI 0x01
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#define KQ_WORKLOOP_CREATE_SCHED_POL 0x02
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#define KQ_WORKLOOP_CREATE_CPU_PERCENT 0x04
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#define KQ_WORKLOOP_CREATE_WORK_INTERVAL 0x08
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struct kqueue_workloop_params {
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int kqwlp_version;
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int kqwlp_flags;
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uint64_t kqwlp_id;
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int kqwlp_sched_pri;
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int kqwlp_sched_pol;
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int kqwlp_cpu_percent;
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int kqwlp_cpu_refillms;
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mach_port_name_t kqwl_wi_port;
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} __attribute__((packed));
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_Static_assert(offsetof(struct kqueue_workloop_params, kqwlp_version) == 0,
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"kqwlp_version should be first");
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int
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__workq_open(void);
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int
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__workq_kernreturn(int op, void *arg2, int arg3, int arg4);
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int
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__kqueue_workloop_ctl(uintptr_t cmd, uint64_t options, void *addr, size_t sz);
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/* SPI flags between WQ and workq_setup_thread in pthread.kext */
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#define WQ_SETUP_NONE 0
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#define WQ_SETUP_FIRST_USE 1
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#define WQ_SETUP_CLEAR_VOUCHER 2
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// was WQ_SETUP_SET_SCHED_CALL 4
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#define WQ_SETUP_EXIT_THREAD 8
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#endif // __PTHREAD_EXPOSE_INTERNALS__
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#define WORKQ_DISPATCH_CONFIG_VERSION 2
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#define WORKQ_DISPATCH_MIN_SUPPORTED_VERSION 1
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#define WORKQ_DISPATCH_SUPPORTED_FLAGS 0
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struct workq_dispatch_config {
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uint32_t wdc_version;
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uint32_t wdc_flags;
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uint64_t wdc_queue_serialno_offs;
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uint64_t wdc_queue_label_offs;
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} __attribute__((packed, aligned(4)));
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#endif // _PTHREAD_WORKQUEUE_PRIVATE_H_
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