/* Time bounds setting test
 *		by: john stultz (johnstul@us.ibm.com)
 *		(C) Copyright IBM 2012
 *		Licensed under the GPLv2
 *
 *  NOTE: This is a meta-test which sets the time to edge cases then
 *  uses other tests to detect problems. Thus this test requires that
 *  the inconsistency-check and nanosleep tests be present in the same
 *  directory it is run from.
 *
 *  To build:
 *	$ gcc set-2038.c -o set-2038 -lrt
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that 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.
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <sys/time.h>
#ifdef KTEST
#include "../kselftest.h"
#else
static inline int ksft_exit_pass(void)
{
	exit(0);
}
static inline int ksft_exit_fail(void)
{
	exit(1);
}
#endif

#define NSEC_PER_SEC 1000000000LL

#define KTIME_MAX	((long long)~((unsigned long long)1 << 63))
#define KTIME_SEC_MAX	(KTIME_MAX / NSEC_PER_SEC)

#define YEAR_1901 (-0x7fffffffL)
#define YEAR_1970 1
#define YEAR_2038 0x7fffffffL			/*overflows 32bit time_t */
#define YEAR_2262 KTIME_SEC_MAX			/*overflows 64bit ktime_t */
#define YEAR_MAX  ((long long)((1ULL<<63)-1))	/*overflows 64bit time_t */

int is32bits(void)
{
	return (sizeof(long) == 4);
}

int settime(long long time)
{
	struct timeval now;
	int ret;

	now.tv_sec = (time_t)time;
	now.tv_usec  = 0;

	ret = settimeofday(&now, NULL);

	printf("Setting time to 0x%lx: %d\n", (long)time, ret);
	return ret;
}

int do_tests(void)
{
	int ret;

	ret = system("date");
	ret = system("./inconsistency-check -c 0 -t 20");
	ret |= system("./nanosleep");
	ret |= system("./nsleep-lat");
	return ret;

}

int main(int argc, char *argv[])
{
	int ret = 0;
	int opt, dangerous = 0;
	time_t start;

	/* Process arguments */
	while ((opt = getopt(argc, argv, "d")) != -1) {
		switch (opt) {
		case 'd':
			dangerous = 1;
		}
	}

	start = time(0);

	/* First test that crazy values don't work */
	if (!settime(YEAR_1901)) {
		ret = -1;
		goto out;
	}
	if (!settime(YEAR_MAX)) {
		ret = -1;
		goto out;
	}
	if (!is32bits() && !settime(YEAR_2262)) {
		ret = -1;
		goto out;
	}

	/* Now test behavior near edges */
	settime(YEAR_1970);
	ret = do_tests();
	if (ret)
		goto out;

	settime(YEAR_2038 - 600);
	ret = do_tests();
	if (ret)
		goto out;

	/* The rest of the tests can blowup on 32bit systems */
	if (is32bits() && !dangerous)
		goto out;
	/* Test rollover behavior 32bit edge */
	settime(YEAR_2038 - 10);
	ret = do_tests();
	if (ret)
		goto out;

	settime(YEAR_2262 - 600);
	ret = do_tests();

out:
	/* restore clock */
	settime(start);
	if (ret)
		return ksft_exit_fail();
	return ksft_exit_pass();
}
1115fcaa06eb5b480f876e9'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf?h=nds-private-remove&amp;id=a810007afe239d59c1115fcaa06eb5b480f876e9'>perf</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/tests?h=nds-private-remove&amp;id=a810007afe239d59c1115fcaa06eb5b480f876e9'>tests</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/tests/pmu.c?h=nds-private-remove&amp;id=a810007afe239d59c1115fcaa06eb5b480f876e9'>pmu.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/tests/pmu.c?h=nds-private-remove&amp;id=a810007afe239d59c1115fcaa06eb5b480f876e9&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
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>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 23:58:38 +0100</td></tr>
<tr><th>committer</th><td>Ingo Molnar &lt;mingo@kernel.org&gt;</td><td class='right'>2017-02-01 08:37:27 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/isa/ad1816a/ad1816a_lib.c?h=nds-private-remove&amp;id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>dd86e373e09fb16b83e8adf5c48c421a4ca76468</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/isa/ad1816a/ad1816a_lib.c?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>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=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>55703c2ea8584e303e342090614e0aab3509ab21</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/isa/ad1816a/ad1816a_lib.c?h=nds-private-remove&amp;id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>sound/isa/ad1816a/ad1816a_lib.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/isa/ad1816a/ad1816a_lib.c?h=nds-private-remove&amp;id=0b3589be9b98994ce3d5aeca52445d1f5627c4ba'>0b3589be9b98994ce3d5aeca52445d1f5627c4ba</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/isa/ad1816a/ad1816a_lib.c?h=nds-private-remove&amp;id=dd86e373e09fb16b83e8adf5c48c421a4ca76468&amp;id2=0b3589be9b98994ce3d5aeca52445d1f5627c4ba'>diff</a>)</td></tr></table>
<div class='commit-subject'>perf/x86/intel/rapl: Make package handling more robust</div><div class='commit-msg'>The package management code in RAPL relies on package mapping being
available before a CPU is started. This changed with:

  9d85eb9119f4 ("x86/smpboot: Make logical package management more robust")

because the ACPI/BIOS information turned out to be unreliable, but that
left RAPL in broken state. This was not noticed because on a regular boot
all CPUs are online before RAPL is initialized.

A possible fix would be to reintroduce the mess which allocates a package
data structure in CPU prepare and when it turns out to already exist in
starting throw it away later in the CPU online callback. But that's a
horrible hack and not required at all because RAPL becomes functional for
perf only in the CPU online callback. That's correct because user space is
not yet informed about the CPU being onlined, so nothing caan rely on RAPL
being available on that particular CPU.

Move the allocation to the CPU online callback and simplify the hotplug
handling. At this point the package mapping is established and correct.

This also adds a missing check for available package data in the
event_init() function.

Reported-by: Yasuaki Ishimatsu &lt;yasu.isimatu@gmail.com&gt;
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Alexander Shishkin &lt;alexander.shishkin@linux.intel.com&gt;
Cc: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
Cc: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Sebastian Siewior &lt;bigeasy@linutronix.de&gt;
Cc: Stephane Eranian &lt;eranian@google.com&gt;
Cc: Vince Weaver &lt;vincent.weaver@maine.edu&gt;
Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust")
Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>Diffstat</a> (limited to 'sound/isa/ad1816a/ad1816a_lib.c')</div><table summary='diffstat' class='diffstat'>