/*
 *   ALSA sequencer Priority Queue
 *   Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
 *
 *
 *   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.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */
#ifndef __SND_SEQ_PRIOQ_H
#define __SND_SEQ_PRIOQ_H

#include "seq_memory.h"


/* === PRIOQ === */

struct snd_seq_prioq {
	struct snd_seq_event_cell *head;      /* pointer to head of prioq */
	struct snd_seq_event_cell *tail;      /* pointer to tail of prioq */
	int cells;
	spinlock_t lock;
};


/* create new prioq (constructor) */
struct snd_seq_prioq *snd_seq_prioq_new(void);

/* delete prioq (destructor) */
void snd_seq_prioq_delete(struct snd_seq_prioq **fifo);

/* enqueue cell to prioq */
int snd_seq_prioq_cell_in(struct snd_seq_prioq *f, struct snd_seq_event_cell *cell);

/* dequeue cell from prioq */ 
struct snd_seq_event_cell *snd_seq_prioq_cell_out(struct snd_seq_prioq *f);

/* return number of events available in prioq */
int snd_seq_prioq_avail(struct snd_seq_prioq *f);

/* peek at cell at the head of the prioq */
struct snd_seq_event_cell *snd_seq_prioq_cell_peek(struct snd_seq_prioq *f);

/* client left queue */
void snd_seq_prioq_leave(struct snd_seq_prioq *f, int client, int timestamp);        

/* Remove events */
void snd_seq_prioq_remove_events(struct snd_seq_prioq *f, int client,
				 struct snd_seq_remove_events *info);

#endif
inux/net-next.git/commit/tools/testing/selftests/powerpc/include/utils.h?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/tools/testing/selftests/powerpc/include/utils.h?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/tools/testing/selftests/powerpc/include/utils.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/testing?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>testing</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>selftests</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/powerpc?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>powerpc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/powerpc/include?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/powerpc/include/utils.h?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>utils.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='dd86e373e09fb16b83e8adf5c48c421a4ca76468'/><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/tools/testing/selftests/powerpc/include/utils.h?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>dd86e373e09fb16b83e8adf5c48c421a4ca76468</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/testing/selftests/powerpc/include/utils.h?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>55703c2ea8584e303e342090614e0aab3509ab21</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/testing/selftests/powerpc/include/utils.h?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>tools/testing/selftests/powerpc/include/utils.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/powerpc/include/utils.h?id=0b3589be9b98994ce3d5aeca52445d1f5627c4ba'>0b3589be9b98994ce3d5aeca52445d1f5627c4ba</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/testing/selftests/powerpc/include/utils.h?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/?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>Diffstat</a> (limited to 'tools/testing/selftests/powerpc/include/utils.h')</div><table summary='diffstat' class='diffstat'>