#include "tests.h"
#include <stdio.h>
#include "cpumap.h"
#include "event.h"
#include <string.h>
#include <linux/bitops.h>
#include "debug.h"

struct machine;

static int process_event_mask(struct perf_tool *tool __maybe_unused,
			 union perf_event *event,
			 struct perf_sample *sample __maybe_unused,
			 struct machine *machine __maybe_unused)
{
	struct cpu_map_event *map_event = &event->cpu_map;
	struct cpu_map_mask *mask;
	struct cpu_map_data *data;
	struct cpu_map *map;
	int i;

	data = &map_event->data;

	TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK);

	mask = (struct cpu_map_mask *)data->data;

	TEST_ASSERT_VAL("wrong nr",   mask->nr == 1);

	for (i = 0; i < 20; i++) {
		TEST_ASSERT_VAL("wrong cpu", test_bit(i, mask->mask));
	}

	map = cpu_map__new_data(data);
	TEST_ASSERT_VAL("wrong nr",  map->nr == 20);

	for (i = 0; i < 20; i++) {
		TEST_ASSERT_VAL("wrong cpu", map->map[i] == i);
	}

	cpu_map__put(map);
	return 0;
}

static int process_event_cpus(struct perf_tool *tool __maybe_unused,
			 union perf_event *event,
			 struct perf_sample *sample __maybe_unused,
			 struct machine *machine __maybe_unused)
{
	struct cpu_map_event *map_event = &event->cpu_map;
	struct cpu_map_entries *cpus;
	struct cpu_map_data *data;
	struct cpu_map *map;

	data = &map_event->data;

	TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__CPUS);

	cpus = (struct cpu_map_entries *)data->data;

	TEST_ASSERT_VAL("wrong nr",   cpus->nr == 2);
	TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[0] == 1);
	TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[1] == 256);

	map = cpu_map__new_data(data);
	TEST_ASSERT_VAL("wrong nr",  map->nr == 2);
	TEST_ASSERT_VAL("wrong cpu", map->map[0] == 1);
	TEST_ASSERT_VAL("wrong cpu", map->map[1] == 256);
	TEST_ASSERT_VAL("wrong refcnt", atomic_read(&map->refcnt) == 1);
	cpu_map__put(map);
	return 0;
}


int test__cpu_map_synthesize(int subtest __maybe_unused)
{
	struct cpu_map *cpus;

	/* This one is better stores in mask. */
	cpus = cpu_map__new("0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19");

	TEST_ASSERT_VAL("failed to synthesize map",
		!perf_event__synthesize_cpu_map(NULL, cpus, process_event_mask, NULL));

	cpu_map__put(cpus);

	/* This one is better stores in cpu values. */
	cpus = cpu_map__new("1,256");

	TEST_ASSERT_VAL("failed to synthesize map",
		!perf_event__synthesize_cpu_map(NULL, cpus, process_event_cpus, NULL));

	cpu_map__put(cpus);
	return 0;
}

static int cpu_map_print(const char *str)
{
	struct cpu_map *map = cpu_map__new(str);
	char buf[100];

	if (!map)
		return -1;

	cpu_map__snprint(map, buf, sizeof(buf));
	return !strcmp(buf, str);
}

int test__cpu_map_print(int subtest __maybe_unused)
{
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,5"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3,5,7,9,11,13,15,17,19,21-40"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("2-5"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3-6,8-10,24,35-37"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3-6,8-10,24,35-37"));
	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1-10,12-20,22-30,32-40"));
	return 0;
}
b862815c3ee7b49ec20a9ab25da55a5f0bcbb95e'>arm64</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/arch/arm64/tests?id=b862815c3ee7b49ec20a9ab25da55a5f0bcbb95e'>tests</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/arch/arm64/tests/dwarf-unwind.c?id=b862815c3ee7b49ec20a9ab25da55a5f0bcbb95e'>dwarf-unwind.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/arch/arm64/tests/dwarf-unwind.c?id=b862815c3ee7b49ec20a9ab25da55a5f0bcbb95e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
();'><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/pci/aw2/Makefile?h=nds-private-remove&amp;id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>dd86e373e09fb16b83e8adf5c48c421a4ca76468</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/pci/aw2/Makefile?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/pci/aw2/Makefile?h=nds-private-remove&amp;id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>sound/pci/aw2/Makefile</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/aw2/Makefile?h=nds-private-remove&amp;id=0b3589be9b98994ce3d5aeca52445d1f5627c4ba'>0b3589be9b98994ce3d5aeca52445d1f5627c4ba</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/pci/aw2/Makefile?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/pci/aw2/Makefile')</div><table summary='diffstat' class='diffstat'>