[apple/xnu.git] / osfmk / kperf / thread_samplers.c

/*
 * Copyright (c) 2011 Apple Computer, 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
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * 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,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * 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@
 */

/*  Sample thread data */

#include <kern/debug.h> /* panic */
#include <kern/thread.h> /* thread_* */
#include <kern/timer.h> /* timer_data_t */
#include <kern/policy_internal.h> /* TASK_POLICY_* */
#include <mach/mach_types.h>

#include <kperf/kperf.h>
#include <kperf/buffer.h>
#include <kperf/context.h>
#include <kperf/thread_samplers.h>
#include <kperf/ast.h>

#if MONOTONIC
#include <kern/monotonic.h>
#include <machine/monotonic.h>
#endif /* MONOTONIC */

extern boolean_t stackshot_thread_is_idle_worker_unsafe(thread_t thread);

/*
 * XXX Deprecated, use thread scheduling sampler instead.
 *
 * Taken from AppleProfileGetRunModeOfThread and CHUD.  Still here for
 * backwards compatibility.
 */

#define KPERF_TI_RUNNING   (1U << 0)
#define KPERF_TI_RUNNABLE  (1U << 1)
#define KPERF_TI_WAIT      (1U << 2)
#define KPERF_TI_UNINT     (1U << 3)
#define KPERF_TI_SUSP      (1U << 4)
#define KPERF_TI_TERMINATE (1U << 5)
#define KPERF_TI_IDLE      (1U << 6)

static uint32_t
kperf_thread_info_runmode_legacy(thread_t thread)
{
	uint32_t kperf_state = 0;
	int sched_state = thread->state;
	processor_t last_processor = thread->last_processor;

	if ((last_processor != PROCESSOR_NULL) && (thread == last_processor->active_thread)) {
		kperf_state |= KPERF_TI_RUNNING;
	}
	if (sched_state & TH_RUN) {
		kperf_state |= KPERF_TI_RUNNABLE;
	}
	if (sched_state & TH_WAIT) {
		kperf_state |= KPERF_TI_WAIT;
	}
	if (sched_state & TH_UNINT) {
		kperf_state |= KPERF_TI_UNINT;
	}
	if (sched_state & TH_SUSP) {
		kperf_state |= KPERF_TI_SUSP;
	}
	if (sched_state & TH_TERMINATE) {
		kperf_state |= KPERF_TI_TERMINATE;
	}
	if (sched_state & TH_IDLE) {
		kperf_state |= KPERF_TI_IDLE;
	}

#if !TARGET_OS_EMBEDDED
	/* on desktop, if state is blank, leave not idle set */
	if (kperf_state == 0) {
		return (TH_IDLE << 16);
	}
#endif /* !TARGET_OS_EMBEDDED */

	/* high two bytes are inverted mask, low two bytes are normal */
	return (((~kperf_state & 0xffff) << 16) | (kperf_state & 0xffff));
}

void
kperf_thread_info_sample(struct kperf_thread_info *ti, struct kperf_context *context)
{
	thread_t cur_thread = context->cur_thread;

	BUF_INFO(PERF_TI_SAMPLE, (uintptr_t)thread_tid(cur_thread));

	ti->kpthi_pid = context->cur_pid;
	ti->kpthi_tid = thread_tid(cur_thread);
	ti->kpthi_dq_addr = thread_dispatchqaddr(cur_thread);
	ti->kpthi_runmode = kperf_thread_info_runmode_legacy(cur_thread);

	BUF_VERB(PERF_TI_SAMPLE | DBG_FUNC_END);
}

void
kperf_thread_info_log(struct kperf_thread_info *ti)
{
	BUF_DATA(PERF_TI_DATA, ti->kpthi_pid, ti->kpthi_tid /* K64-only */,
	                       ti->kpthi_dq_addr, ti->kpthi_runmode);
}

/*
 * Scheduling information reports inputs and outputs of the scheduler state for
 * a thread.
 */

void
kperf_thread_scheduling_sample(struct kperf_thread_scheduling *thsc,
                               struct kperf_context *context)
{
	assert(thsc != NULL);
	assert(context != NULL);

	thread_t thread = context->cur_thread;

	BUF_INFO(PERF_TI_SCHEDSAMPLE | DBG_FUNC_START, (uintptr_t)thread_tid(thread));

	thsc->kpthsc_user_time = timer_grab(&(thread->user_timer));
	uint64_t system_time = timer_grab(&(thread->system_timer));

	if (thread->precise_user_kernel_time) {
		thsc->kpthsc_system_time = system_time;
	} else {
		thsc->kpthsc_user_time += system_time;
		thsc->kpthsc_system_time = 0;
	}

	thsc->kpthsc_state = thread->state;
	thsc->kpthsc_base_priority = thread->base_pri;
	thsc->kpthsc_sched_priority = thread->sched_pri;
	thsc->kpthsc_effective_qos = thread->effective_policy.thep_qos;
	thsc->kpthsc_requested_qos = thread->requested_policy.thrp_qos;
	thsc->kpthsc_requested_qos_override = thread->requested_policy.thrp_qos_override;
	thsc->kpthsc_requested_qos_promote = thread->requested_policy.thrp_qos_promote;
	thsc->kpthsc_requested_qos_ipc_override = thread->requested_policy.thrp_qos_ipc_override;
	thsc->kpthsc_requested_qos_sync_ipc_override = thread->requested_policy.thrp_qos_sync_ipc_override;
	thsc->kpthsc_effective_latency_qos = thread->effective_policy.thep_latency_qos;

	BUF_INFO(PERF_TI_SCHEDSAMPLE | DBG_FUNC_END);
}


void
kperf_thread_scheduling_log(struct kperf_thread_scheduling *thsc)
{
	assert(thsc != NULL);
#if defined(__LP64__)
	BUF_DATA(PERF_TI_SCHEDDATA_2, thsc->kpthsc_user_time,
			thsc->kpthsc_system_time,
			(((uint64_t)thsc->kpthsc_base_priority) << 48)
			| ((uint64_t)thsc->kpthsc_sched_priority << 32)
			| ((uint64_t)(thsc->kpthsc_state & 0xff) << 24)
			| (thsc->kpthsc_effective_qos << 6)
			| (thsc->kpthsc_requested_qos << 3)
			| thsc->kpthsc_requested_qos_override,
			((uint64_t)thsc->kpthsc_effective_latency_qos << 61)
			| ((uint64_t)thsc->kpthsc_requested_qos_promote << 58)
			| ((uint64_t)thsc->kpthsc_requested_qos_ipc_override << 55)
			| ((uint64_t)thsc->kpthsc_requested_qos_sync_ipc_override << 52)
			);
#else
	BUF_DATA(PERF_TI_SCHEDDATA1_32, UPPER_32(thsc->kpthsc_user_time),
			LOWER_32(thsc->kpthsc_user_time),
			UPPER_32(thsc->kpthsc_system_time),
			LOWER_32(thsc->kpthsc_system_time)
			);
	BUF_DATA(PERF_TI_SCHEDDATA2_32_2, (((uint32_t)thsc->kpthsc_base_priority) << 16)
			| thsc->kpthsc_sched_priority,
			((thsc->kpthsc_state & 0xff) << 24)
			| (thsc->kpthsc_effective_qos << 6)
			| (thsc->kpthsc_requested_qos << 3)
			| thsc->kpthsc_requested_qos_override,
			((uint32_t)thsc->kpthsc_effective_latency_qos << 29)
			| ((uint32_t)thsc->kpthsc_requested_qos_promote << 26)
			| ((uint32_t)thsc->kpthsc_requested_qos_ipc_override << 23)
			| ((uint32_t)thsc->kpthsc_requested_qos_sync_ipc_override << 20)
			);
#endif /* defined(__LP64__) */
}

/*
 * Snapshot information maintains parity with stackshot information for other,
 * miscellaneous information about threads.
 */

#define KPERF_THREAD_SNAPSHOT_DARWIN_BG  (1U << 0);
#define KPERF_THREAD_SNAPSHOT_PASSIVE_IO (1U << 1);
#define KPERF_THREAD_SNAPSHOT_GFI        (1U << 2);
#define KPERF_THREAD_SNAPSHOT_IDLE_WQ    (1U << 3);
/* max is 1U << 7 */

void
kperf_thread_snapshot_sample(struct kperf_thread_snapshot *thsn,
                             struct kperf_context *context)
{
	assert(thsn != NULL);
	assert(context != NULL);

	thread_t thread = context->cur_thread;

	BUF_INFO(PERF_TI_SNAPSAMPLE | DBG_FUNC_START, (uintptr_t)thread_tid(thread));

	thsn->kpthsn_last_made_runnable_time = thread->last_made_runnable_time;

	thsn->kpthsn_flags = 0;
	if (thread->effective_policy.thep_darwinbg) {
		thsn->kpthsn_flags |= KPERF_THREAD_SNAPSHOT_DARWIN_BG;
	}
	if (proc_get_effective_thread_policy(thread, TASK_POLICY_PASSIVE_IO)) {
		thsn->kpthsn_flags |= KPERF_THREAD_SNAPSHOT_PASSIVE_IO;
	}
	if (thread->options & TH_OPT_GLOBAL_FORCED_IDLE) {
		thsn->kpthsn_flags |= KPERF_THREAD_SNAPSHOT_GFI
	}
	if (stackshot_thread_is_idle_worker_unsafe(thread)) {
		thsn->kpthsn_flags |= KPERF_THREAD_SNAPSHOT_IDLE_WQ;
	}

	thsn->kpthsn_suspend_count = thread->suspend_count;
	thsn->kpthsn_io_tier = proc_get_effective_thread_policy(thread, TASK_POLICY_IO);

	BUF_VERB(PERF_TI_SNAPSAMPLE | DBG_FUNC_END);
}

void
kperf_thread_snapshot_log(struct kperf_thread_snapshot *thsn)
{
	assert(thsn != NULL);
#if defined(__LP64__)
	BUF_DATA(PERF_TI_SNAPDATA, thsn->kpthsn_flags | ((uint32_t)(thsn->kpthsn_suspend_count) << 8)
	                                              | (thsn->kpthsn_io_tier << 24),
	                           thsn->kpthsn_last_made_runnable_time);
#else
	BUF_DATA(PERF_TI_SNAPDATA_32, thsn->kpthsn_flags | ((uint32_t)(thsn->kpthsn_suspend_count) << 8)
	                                                 | (thsn->kpthsn_io_tier << 24),
	                              UPPER_32(thsn->kpthsn_last_made_runnable_time),
	                              LOWER_32(thsn->kpthsn_last_made_runnable_time));
#endif /* defined(__LP64__) */
}

/*
 * Dispatch information only contains the dispatch queue serial number from
 * libdispatch.
 *
 * It's a separate sampler because queue data must be copied in from user space.
 */

void
kperf_thread_dispatch_sample(struct kperf_thread_dispatch *thdi,
                             struct kperf_context *context)
{
	assert(thdi != NULL);
	assert(context != NULL);

	thread_t thread = context->cur_thread;

	BUF_INFO(PERF_TI_DISPSAMPLE | DBG_FUNC_START, (uintptr_t)thread_tid(thread));

	task_t task = thread->task;
	boolean_t task_64 = task_has_64BitAddr(task);
	size_t user_addr_size = task_64 ? 8 : 4;

	assert(thread->task != kernel_task);
	uint64_t user_dq_key_addr = thread_dispatchqaddr(thread);
	if (user_dq_key_addr == 0) {
		goto error;
	}

	uint64_t user_dq_addr;
	if ((copyin((user_addr_t)user_dq_key_addr,
	            (char *)&user_dq_addr,
	            user_addr_size) != 0) ||
		(user_dq_addr == 0))
	{
		goto error;
	}

	uint64_t user_dq_serialno_addr =
		user_dq_addr + get_task_dispatchqueue_serialno_offset(task);

	if (copyin((user_addr_t)user_dq_serialno_addr,
	           (char *)&(thdi->kpthdi_dq_serialno),
	           user_addr_size) == 0)
	{
		goto out;
	}

error:
	thdi->kpthdi_dq_serialno = 0;

out:
	BUF_VERB(PERF_TI_DISPSAMPLE | DBG_FUNC_END);
}

int
kperf_thread_dispatch_pend(struct kperf_context *context)
{
	return kperf_ast_pend(context->cur_thread, T_KPERF_AST_DISPATCH);
}

void
kperf_thread_dispatch_log(struct kperf_thread_dispatch *thdi)
{
	assert(thdi != NULL);
#if defined(__LP64__)
	BUF_DATA(PERF_TI_DISPDATA, thdi->kpthdi_dq_serialno);
#else
	BUF_DATA(PERF_TI_DISPDATA_32, UPPER_32(thdi->kpthdi_dq_serialno),
	                              LOWER_32(thdi->kpthdi_dq_serialno));
#endif /* defined(__LP64__) */
}

/*
 * A bit different from other samplers -- since logging disables interrupts,
 * it's a fine place to sample the thread counters.
 */
void
kperf_thread_inscyc_log(struct kperf_context *context)
{
#if MONOTONIC
	thread_t cur_thread = current_thread();

	if (context->cur_thread != cur_thread) {
		/* can't safely access another thread's counters */
		return;
	}

	uint64_t counts[MT_CORE_NFIXED];

	int ret = mt_fixed_thread_counts(cur_thread, counts);
	if (ret) {
		return;
	}

#if defined(__LP64__)
	BUF_DATA(PERF_TI_INSCYCDATA, counts[MT_CORE_INSTRS], counts[MT_CORE_CYCLES]);
#else /* defined(__LP64__) */
	/* 32-bit platforms don't count instructions */
	BUF_DATA(PERF_TI_INSCYCDATA_32, 0, 0, UPPER_32(counts[MT_CORE_CYCLES]),
			LOWER_32(counts[MT_CORE_CYCLES]));
#endif /* !defined(__LP64__) */
#else /* MONOTONIC */
#pragma unused(context)
#endif /* !MONOTONIC */
}
Commit	Line	Data
39037602 A	1	/*
	2	* Copyright (c) 2011 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
	25	*
	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
	27	*/
	28
	29	/* Sample thread data */
	30
	31	#include <kern/debug.h> /* panic */
	32	#include <kern/thread.h> /* thread_* */
	33	#include <kern/timer.h> /* timer_data_t */
	34	#include <kern/policy_internal.h> /* TASK_POLICY_* */
	35	#include <mach/mach_types.h>
	36
	37	#include <kperf/kperf.h>
	38	#include <kperf/buffer.h>
	39	#include <kperf/context.h>
	40	#include <kperf/thread_samplers.h>
	41	#include <kperf/ast.h>
	42
5ba3f43e A	43	#if MONOTONIC
	44	#include <kern/monotonic.h>
	45	#include <machine/monotonic.h>
	46	#endif /* MONOTONIC */
	47
39037602 A	48	extern boolean_t stackshot_thread_is_idle_worker_unsafe(thread_t thread);
	49
	50	/*
	51	* XXX Deprecated, use thread scheduling sampler instead.
	52	*
	53	* Taken from AppleProfileGetRunModeOfThread and CHUD. Still here for
	54	* backwards compatibility.
	55	*/
	56
	57	#define KPERF_TI_RUNNING (1U << 0)
	58	#define KPERF_TI_RUNNABLE (1U << 1)
	59	#define KPERF_TI_WAIT (1U << 2)
	60	#define KPERF_TI_UNINT (1U << 3)
	61	#define KPERF_TI_SUSP (1U << 4)
	62	#define KPERF_TI_TERMINATE (1U << 5)
	63	#define KPERF_TI_IDLE (1U << 6)
	64
	65	static uint32_t
	66	kperf_thread_info_runmode_legacy(thread_t thread)
	67	{
	68	uint32_t kperf_state = 0;
	69	int sched_state = thread->state;
	70	processor_t last_processor = thread->last_processor;
	71
	72	if ((last_processor != PROCESSOR_NULL) && (thread == last_processor->active_thread)) {
	73	kperf_state \|= KPERF_TI_RUNNING;
	74	}
	75	if (sched_state & TH_RUN) {
	76	kperf_state \|= KPERF_TI_RUNNABLE;
	77	}
	78	if (sched_state & TH_WAIT) {
	79	kperf_state \|= KPERF_TI_WAIT;
	80	}
	81	if (sched_state & TH_UNINT) {
	82	kperf_state \|= KPERF_TI_UNINT;
	83	}
	84	if (sched_state & TH_SUSP) {
	85	kperf_state \|= KPERF_TI_SUSP;
	86	}
	87	if (sched_state & TH_TERMINATE) {
	88	kperf_state \|= KPERF_TI_TERMINATE;
	89	}
	90	if (sched_state & TH_IDLE) {
	91	kperf_state \|= KPERF_TI_IDLE;
	92	}
	93
5ba3f43e	94	#if !TARGET_OS_EMBEDDED
39037602 A	95	/* on desktop, if state is blank, leave not idle set */
	96	if (kperf_state == 0) {
	97	return (TH_IDLE << 16);
	98	}
5ba3f43e	99	#endif /* !TARGET_OS_EMBEDDED */
39037602 A	100
	101	/* high two bytes are inverted mask, low two bytes are normal */
	102	return (((~kperf_state & 0xffff) << 16) \| (kperf_state & 0xffff));
	103	}
	104
	105	void
	106	kperf_thread_info_sample(struct kperf_thread_info ti, struct kperf_context context)
	107	{
	108	thread_t cur_thread = context->cur_thread;
	109
	110	BUF_INFO(PERF_TI_SAMPLE, (uintptr_t)thread_tid(cur_thread));
	111
	112	ti->kpthi_pid = context->cur_pid;
	113	ti->kpthi_tid = thread_tid(cur_thread);
	114	ti->kpthi_dq_addr = thread_dispatchqaddr(cur_thread);
	115	ti->kpthi_runmode = kperf_thread_info_runmode_legacy(cur_thread);
	116
	117	BUF_VERB(PERF_TI_SAMPLE \| DBG_FUNC_END);
	118	}
	119
	120	void
	121	kperf_thread_info_log(struct kperf_thread_info *ti)
	122	{
	123	BUF_DATA(PERF_TI_DATA, ti->kpthi_pid, ti->kpthi_tid /* K64-only */,
	124	ti->kpthi_dq_addr, ti->kpthi_runmode);
	125	}
	126
	127	/*
	128	* Scheduling information reports inputs and outputs of the scheduler state for
	129	* a thread.
	130	*/
	131
	132	void
	133	kperf_thread_scheduling_sample(struct kperf_thread_scheduling *thsc,
	134	struct kperf_context *context)
	135	{
	136	assert(thsc != NULL);
	137	assert(context != NULL);
	138
	139	thread_t thread = context->cur_thread;
	140
	141	BUF_INFO(PERF_TI_SCHEDSAMPLE \| DBG_FUNC_START, (uintptr_t)thread_tid(thread));
	142
	143	thsc->kpthsc_user_time = timer_grab(&(thread->user_timer));
	144	uint64_t system_time = timer_grab(&(thread->system_timer));
	145
	146	if (thread->precise_user_kernel_time) {
	147	thsc->kpthsc_system_time = system_time;
	148	} else {
	149	thsc->kpthsc_user_time += system_time;
	150	thsc->kpthsc_system_time = 0;
	151	}
	152
	153	thsc->kpthsc_state = thread->state;
	154	thsc->kpthsc_base_priority = thread->base_pri;
	155	thsc->kpthsc_sched_priority = thread->sched_pri;
	156	thsc->kpthsc_effective_qos = thread->effective_policy.thep_qos;
	157	thsc->kpthsc_requested_qos = thread->requested_policy.thrp_qos;
	158	thsc->kpthsc_requested_qos_override = thread->requested_policy.thrp_qos_override;
5ba3f43e A	159	thsc->kpthsc_requested_qos_promote = thread->requested_policy.thrp_qos_promote;
	160	thsc->kpthsc_requested_qos_ipc_override = thread->requested_policy.thrp_qos_ipc_override;
	161	thsc->kpthsc_requested_qos_sync_ipc_override = thread->requested_policy.thrp_qos_sync_ipc_override;
39037602 A	162	thsc->kpthsc_effective_latency_qos = thread->effective_policy.thep_latency_qos;
	163
	164	BUF_INFO(PERF_TI_SCHEDSAMPLE \| DBG_FUNC_END);
	165	}
	166
	167
	168	void
	169	kperf_thread_scheduling_log(struct kperf_thread_scheduling *thsc)
	170	{
	171	assert(thsc != NULL);
	172	#if defined(__LP64__)
5ba3f43e A	173	BUF_DATA(PERF_TI_SCHEDDATA_2, thsc->kpthsc_user_time,
	174	thsc->kpthsc_system_time,
	175	(((uint64_t)thsc->kpthsc_base_priority) << 48)
	176	\| ((uint64_t)thsc->kpthsc_sched_priority << 32)
	177	\| ((uint64_t)(thsc->kpthsc_state & 0xff) << 24)
	178	\| (thsc->kpthsc_effective_qos << 6)
	179	\| (thsc->kpthsc_requested_qos << 3)
	180	\| thsc->kpthsc_requested_qos_override,
	181	((uint64_t)thsc->kpthsc_effective_latency_qos << 61)
	182	\| ((uint64_t)thsc->kpthsc_requested_qos_promote << 58)
	183	\| ((uint64_t)thsc->kpthsc_requested_qos_ipc_override << 55)
	184	\| ((uint64_t)thsc->kpthsc_requested_qos_sync_ipc_override << 52)
	185	);
39037602 A	186	#else
39037602 A	187	BUF_DATA(PERF_TI_SCHEDDATA1_32, UPPER_32(thsc->kpthsc_user_time),
5ba3f43e A	188	LOWER_32(thsc->kpthsc_user_time),
	189	UPPER_32(thsc->kpthsc_system_time),
	190	LOWER_32(thsc->kpthsc_system_time)
	191	);
	192	BUF_DATA(PERF_TI_SCHEDDATA2_32_2, (((uint32_t)thsc->kpthsc_base_priority) << 16)
	193	\| thsc->kpthsc_sched_priority,
	194	((thsc->kpthsc_state & 0xff) << 24)
	195	\| (thsc->kpthsc_effective_qos << 6)
	196	\| (thsc->kpthsc_requested_qos << 3)
	197	\| thsc->kpthsc_requested_qos_override,
	198	((uint32_t)thsc->kpthsc_effective_latency_qos << 29)
	199	\| ((uint32_t)thsc->kpthsc_requested_qos_promote << 26)
	200	\| ((uint32_t)thsc->kpthsc_requested_qos_ipc_override << 23)
	201	\| ((uint32_t)thsc->kpthsc_requested_qos_sync_ipc_override << 20)
	202	);
39037602 A	203	#endif /* defined(__LP64__) */
	204	}
	205
	206	/*
	207	* Snapshot information maintains parity with stackshot information for other,
	208	* miscellaneous information about threads.
	209	*/
	210
	211	#define KPERF_THREAD_SNAPSHOT_DARWIN_BG (1U << 0);
	212	#define KPERF_THREAD_SNAPSHOT_PASSIVE_IO (1U << 1);
	213	#define KPERF_THREAD_SNAPSHOT_GFI (1U << 2);
	214	#define KPERF_THREAD_SNAPSHOT_IDLE_WQ (1U << 3);
	215	/* max is 1U << 7 */
	216
	217	void
	218	kperf_thread_snapshot_sample(struct kperf_thread_snapshot *thsn,
	219	struct kperf_context *context)
	220	{
	221	assert(thsn != NULL);
	222	assert(context != NULL);
	223
	224	thread_t thread = context->cur_thread;
	225
	226	BUF_INFO(PERF_TI_SNAPSAMPLE \| DBG_FUNC_START, (uintptr_t)thread_tid(thread));
	227
	228	thsn->kpthsn_last_made_runnable_time = thread->last_made_runnable_time;
	229
	230	thsn->kpthsn_flags = 0;
	231	if (thread->effective_policy.thep_darwinbg) {
	232	thsn->kpthsn_flags \|= KPERF_THREAD_SNAPSHOT_DARWIN_BG;
	233	}
	234	if (proc_get_effective_thread_policy(thread, TASK_POLICY_PASSIVE_IO)) {
	235	thsn->kpthsn_flags \|= KPERF_THREAD_SNAPSHOT_PASSIVE_IO;
	236	}
	237	if (thread->options & TH_OPT_GLOBAL_FORCED_IDLE) {
	238	thsn->kpthsn_flags \|= KPERF_THREAD_SNAPSHOT_GFI
	239	}
	240	if (stackshot_thread_is_idle_worker_unsafe(thread)) {
	241	thsn->kpthsn_flags \|= KPERF_THREAD_SNAPSHOT_IDLE_WQ;
	242	}
	243
	244	thsn->kpthsn_suspend_count = thread->suspend_count;
	245	thsn->kpthsn_io_tier = proc_get_effective_thread_policy(thread, TASK_POLICY_IO);
	246
	247	BUF_VERB(PERF_TI_SNAPSAMPLE \| DBG_FUNC_END);
	248	}
	249
	250	void
	251	kperf_thread_snapshot_log(struct kperf_thread_snapshot *thsn)
	252	{
	253	assert(thsn != NULL);
	254	#if defined(__LP64__)
	255	BUF_DATA(PERF_TI_SNAPDATA, thsn->kpthsn_flags \| ((uint32_t)(thsn->kpthsn_suspend_count) << 8)
	256	\| (thsn->kpthsn_io_tier << 24),
	257	thsn->kpthsn_last_made_runnable_time);
	258	#else
	259	BUF_DATA(PERF_TI_SNAPDATA_32, thsn->kpthsn_flags \| ((uint32_t)(thsn->kpthsn_suspend_count) << 8)
	260	\| (thsn->kpthsn_io_tier << 24),
	261	UPPER_32(thsn->kpthsn_last_made_runnable_time),
	262	LOWER_32(thsn->kpthsn_last_made_runnable_time));
	263	#endif /* defined(__LP64__) */
	264	}
	265
	266	/*
267	* Dispatch information only contains the dispatch queue serial number from
268	* libdispatch.
269	*
270	* It's a separate sampler because queue data must be copied in from user space.
271	*/
272
273	void
274	kperf_thread_dispatch_sample(struct kperf_thread_dispatch *thdi,
275	struct kperf_context *context)
276	{
277	assert(thdi != NULL);
278	assert(context != NULL);
279
280	thread_t thread = context->cur_thread;
281
282	BUF_INFO(PERF_TI_DISPSAMPLE \| DBG_FUNC_START, (uintptr_t)thread_tid(thread));
283
284	task_t task = thread->task;
285	boolean_t task_64 = task_has_64BitAddr(task);
286	size_t user_addr_size = task_64 ? 8 : 4;
287
288	assert(thread->task != kernel_task);
289	uint64_t user_dq_key_addr = thread_dispatchqaddr(thread);
290	if (user_dq_key_addr == 0) {
291	goto error;
292	}
293
294	uint64_t user_dq_addr;
295	if ((copyin((user_addr_t)user_dq_key_addr,
296	(char *)&user_dq_addr,
297	user_addr_size) != 0) \|\|
298	(user_dq_addr == 0))
299	{
300	goto error;
301	}
302
303	uint64_t user_dq_serialno_addr =
304	user_dq_addr + get_task_dispatchqueue_serialno_offset(task);
305
306	if (copyin((user_addr_t)user_dq_serialno_addr,
307	(char *)&(thdi->kpthdi_dq_serialno),
308	user_addr_size) == 0)
309	{
310	goto out;
311	}
312
313	error:
314	thdi->kpthdi_dq_serialno = 0;
315
316	out:
317	BUF_VERB(PERF_TI_DISPSAMPLE \| DBG_FUNC_END);
318	}
319
320	int
321	kperf_thread_dispatch_pend(struct kperf_context *context)
322	{
323	return kperf_ast_pend(context->cur_thread, T_KPERF_AST_DISPATCH);
324	}
325
326	void
327	kperf_thread_dispatch_log(struct kperf_thread_dispatch *thdi)
328	{
329	assert(thdi != NULL);
330	#if defined(__LP64__)
331	BUF_DATA(PERF_TI_DISPDATA, thdi->kpthdi_dq_serialno);
332	#else
333	BUF_DATA(PERF_TI_DISPDATA_32, UPPER_32(thdi->kpthdi_dq_serialno),
334	LOWER_32(thdi->kpthdi_dq_serialno));
335	#endif /* defined(__LP64__) */
336	}
5ba3f43e A	337
	338	/*
	339	* A bit different from other samplers -- since logging disables interrupts,
	340	* it's a fine place to sample the thread counters.
	341	*/
	342	void
	343	kperf_thread_inscyc_log(struct kperf_context *context)
	344	{
	345	#if MONOTONIC
	346	thread_t cur_thread = current_thread();
	347
	348	if (context->cur_thread != cur_thread) {
	349	/* can't safely access another thread's counters */
	350	return;
	351	}
	352
	353	uint64_t counts[MT_CORE_NFIXED];
	354
	355	int ret = mt_fixed_thread_counts(cur_thread, counts);
	356	if (ret) {
	357	return;
	358	}
	359
	360	#if defined(__LP64__)
	361	BUF_DATA(PERF_TI_INSCYCDATA, counts[MT_CORE_INSTRS], counts[MT_CORE_CYCLES]);
	362	#else /* defined(__LP64__) */
	363	/* 32-bit platforms don't count instructions */
	364	BUF_DATA(PERF_TI_INSCYCDATA_32, 0, 0, UPPER_32(counts[MT_CORE_CYCLES]),
	365	LOWER_32(counts[MT_CORE_CYCLES]));
	366	#endif /* !defined(__LP64__) */
	367	#else /* MONOTONIC */
	368	#pragma unused(context)
	369	#endif /* !MONOTONIC */
	370	}