/*
 * thread-stack.h: Synthesize a thread's stack using call / return events
 * Copyright (c) 2014, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 */

#ifndef __PERF_THREAD_STACK_H
#define __PERF_THREAD_STACK_H

#include <sys/types.h>

#include <linux/types.h>

struct thread;
struct comm;
struct ip_callchain;
struct symbol;
struct dso;
struct comm;
struct perf_sample;
struct addr_location;
struct call_path;

/*
 * Call/Return flags.
 *
 * CALL_RETURN_NO_CALL: 'return' but no matching 'call'
 * CALL_RETURN_NO_RETURN: 'call' but no matching 'return'
 */
enum {
	CALL_RETURN_NO_CALL	= 1 << 0,
	CALL_RETURN_NO_RETURN	= 1 << 1,
};

/**
 * struct call_return - paired call/return information.
 * @thread: thread in which call/return occurred
 * @comm: comm in which call/return occurred
 * @cp: call path
 * @call_time: timestamp of call (if known)
 * @return_time: timestamp of return (if known)
 * @branch_count: number of branches seen between call and return
 * @call_ref: external reference to 'call' sample (e.g. db_id)
 * @return_ref:  external reference to 'return' sample (e.g. db_id)
 * @db_id: id used for db-export
 * @flags: Call/Return flags
 */
struct call_return {
	struct thread *thread;
	struct comm *comm;
	struct call_path *cp;
	u64 call_time;
	u64 return_time;
	u64 branch_count;
	u64 call_ref;
	u64 return_ref;
	u64 db_id;
	u32 flags;
};

/**
 * struct call_return_processor - provides a call-back to consume call-return
 *                                information.
 * @cpr: call path root
 * @process: call-back that accepts call/return information
 * @data: anonymous data for call-back
 */
struct call_return_processor {
	struct call_path_root *cpr;
	int (*process)(struct call_return *cr, void *data);
	void *data;
};

int thread_stack__event(struct thread *thread, u32 flags, u64 from_ip,
			u64 to_ip, u16 insn_len, u64 trace_nr);
void thread_stack__set_trace_nr(struct thread *thread, u64 trace_nr);
void thread_stack__sample(struct thread *thread, struct ip_callchain *chain,
			  size_t sz, u64 ip);
int thread_stack__flush(struct thread *thread);
void thread_stack__free(struct thread *thread);
size_t thread_stack__depth(struct thread *thread);

struct call_return_processor *
call_return_processor__new(int (*process)(struct call_return *cr, void *data),
			   void *data);
void call_return_processor__free(struct call_return_processor *crp);
int thread_stack__process(struct thread *thread, struct comm *comm,
			  struct perf_sample *sample,
			  struct addr_location *from_al,
			  struct addr_location *to_al, u64 ref,
			  struct call_return_processor *crp);

#endif
040aa45df6ffd9e891114125dc919f18b96b'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b'>serial</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/ipw.c?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b'>ipw.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='f7d6040aa45df6ffd9e891114125dc919f18b96b'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 15:11:04 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-06 15:11:04 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/ipw.c?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b'>f7d6040aa45df6ffd9e891114125dc919f18b96b</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/serial/ipw.c?id=f7d6040aa45df6ffd9e891114125dc919f18b96b'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b'>b20fed8e63bf327d6521923851a96ba080c48ce5</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/serial/ipw.c?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b'>drivers/usb/serial/ipw.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/ipw.c?h=nds-private-remove&amp;id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60'>50dcb6cdb70281d76b28d1564f8e076bb08f2c60</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial/ipw.c?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b&amp;id2=50dcb6cdb70281d76b28d1564f8e076bb08f2c60'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/serial/ipw.c?h=nds-private-remove&amp;id=cbf304e420da96992eae50bb6d51035681340ab8'>cbf304e420da96992eae50bb6d51035681340ab8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial/ipw.c?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b&amp;id2=cbf304e420da96992eae50bb6d51035681340ab8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'pm-4.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm</div><div class='commit-msg'>Pull power management fixes from Rafael Wysocki:
 "These add a quirk to intel_pstate to work around a firmware setting
  that leads to frequency scaling issues (discovered recently) on some
  Intel Kaby Lake processors, fix up the recently added brcmstb-avs
  cpufreq driver and avoid false-positive warnings from the runtime PM
  framework triggered by recent changes in i915.

  Specifics:

   - Add an intel_pstate driver quirk to work around a firmware setting
     that leads to frequency scaling issues on desktop Intel Kaby Lake
     processors in some configurations if the hardware-managed P-states
     (HWP) feature is in use (Srinivas Pandruvada)

   - Fix up the recently added brcmstb-avs cpufreq driver: fix a bug
     related to system suspend and change the sysfs interface to match
     the user space expectations (Markus Mayer)

   - Modify the runtime PM framework to avoid false-positive warnings
     from the might_sleep_if() assertions in it (Rafael Wysocki)"

* tag 'pm-4.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / runtime: Avoid false-positive warnings from might_sleep_if()
  cpufreq: intel_pstate: Disable energy efficiency optimization
  cpufreq: brcmstb-avs-cpufreq: properly retrieve P-state upon suspend
  cpufreq: brcmstb-avs-cpufreq: extend sysfs entry brcm_avs_pmap
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=f7d6040aa45df6ffd9e891114125dc919f18b96b'>Diffstat</a> (limited to 'drivers/usb/serial/ipw.c')</div><table summary='diffstat' class='diffstat'>