#include <stdbool.h>
#include <errno.h>

#include <linux/perf_event.h>

#include "../../perf.h"
#include <linux/types.h>
#include "../../util/debug.h"
#include "../../util/tsc.h"

int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc,
			     struct perf_tsc_conversion *tc)
{
	bool cap_user_time_zero;
	u32 seq;
	int i = 0;

	while (1) {
		seq = pc->lock;
		rmb();
		tc->time_mult = pc->time_mult;
		tc->time_shift = pc->time_shift;
		tc->time_zero = pc->time_zero;
		cap_user_time_zero = pc->cap_user_time_zero;
		rmb();
		if (pc->lock == seq && !(seq & 1))
			break;
		if (++i > 10000) {
			pr_debug("failed to get perf_event_mmap_page lock\n");
			return -EINVAL;
		}
	}

	if (!cap_user_time_zero)
		return -EOPNOTSUPP;

	return 0;
}

u64 rdtsc(void)
{
	unsigned int low, high;

	asm volatile("rdtsc" : "=a" (low), "=d" (high));

	return low | ((u64)high) << 32;
}

int perf_event__synth_time_conv(const struct perf_event_mmap_page *pc,
				struct perf_tool *tool,
				perf_event__handler_t process,
				struct machine *machine)
{
	union perf_event event = {
		.time_conv = {
			.header = {
				.type = PERF_RECORD_TIME_CONV,
				.size = sizeof(struct time_conv_event),
			},
		},
	};
	struct perf_tsc_conversion tc;
	int err;

	if (!pc)
		return 0;
	err = perf_read_tsc_conversion(pc, &tc);
	if (err == -EOPNOTSUPP)
		return 0;
	if (err)
		return err;

	pr_debug2("Synthesizing TSC conversion information\n");

	event.time_conv.time_mult  = tc.time_mult;
	event.time_conv.time_shift = tc.time_shift;
	event.time_conv.time_zero  = tc.time_zero;

	return process(tool, &event, NULL, machine);
}
 class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include/sound/da9055.h?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/sound/da9055.h?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/sound/da9055.h?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/sound/da9055.h?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/sound/da9055.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/sound?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/sound/da9055.h?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>da9055.h</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='890b73af6b008a7d59bdbab2dd59bd7b212dbc60'/><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>Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;</td><td class='right'>2017-01-02 16:59:44 +0100</td></tr>
<tr><th>committer</th><td>Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;</td><td class='right'>2017-01-02 16:59:44 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/sound/da9055.h?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>890b73af6b008a7d59bdbab2dd59bd7b212dbc60</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/sound/da9055.h?id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>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=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>871704f4aec3e77d4d13b3d2878928f0e078cacb</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/sound/da9055.h?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>include/sound/da9055.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/sound/da9055.h?h=nds-private-remove&amp;id=0c744ea4f77d72b3dcebb7a8f2684633ec79be88'>0c744ea4f77d72b3dcebb7a8f2684633ec79be88</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/sound/da9055.h?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60&amp;id2=0c744ea4f77d72b3dcebb7a8f2684633ec79be88'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/sound/da9055.h?h=nds-private-remove&amp;id=65e4345c8ef8811bbb4860fe5f2df10646b7f2e1'>65e4345c8ef8811bbb4860fe5f2df10646b7f2e1</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/sound/da9055.h?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60&amp;id2=65e4345c8ef8811bbb4860fe5f2df10646b7f2e1'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'iio-fixes-for-4.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus</div><div class='commit-msg'>Jonathan writes:

First round of IIO fixes for the 4.10 cycle.

* 104-quad-8
  - Fix selecting wrong register when the index control register is desired.
  - Fix an off by one error when addressing the input/output control register.
  - Fix inverted logic on the active high / low control
* bmi160
  - Sleep for worst case rather than best case amount of time after cmd
  execution begins.
* max44000
  - typo fix in illuminance_integration_time_available listing.
* st-sensors
  - Fix channel data passing.  This one took a while to get tested on 24bit
  parts. Definitely one for stable asap as the bug broke quite a few parts.
  - lis3lv02 needs a data alignment bit set and the scaling was wrong.
* ti_am335x
  - depend on HAS_DMA
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=890b73af6b008a7d59bdbab2dd59bd7b212dbc60'>Diffstat</a> (limited to 'include/sound/da9055.h')</div><table summary='diffstat' class='diffstat'>