/*
 * auxtrace.c: AUX area tracing support
 * Copyright (c) 2013-2014, 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.
 *
 */

#include <stdbool.h>

#include "../../util/header.h"
#include "../../util/debug.h"
#include "../../util/pmu.h"
#include "../../util/auxtrace.h"
#include "../../util/intel-pt.h"
#include "../../util/intel-bts.h"
#include "../../util/evlist.h"

static
struct auxtrace_record *auxtrace_record__init_intel(struct perf_evlist *evlist,
						    int *err)
{
	struct perf_pmu *intel_pt_pmu;
	struct perf_pmu *intel_bts_pmu;
	struct perf_evsel *evsel;
	bool found_pt = false;
	bool found_bts = false;

	intel_pt_pmu = perf_pmu__find(INTEL_PT_PMU_NAME);
	intel_bts_pmu = perf_pmu__find(INTEL_BTS_PMU_NAME);

	if (evlist) {
		evlist__for_each_entry(evlist, evsel) {
			if (intel_pt_pmu &&
			    evsel->attr.type == intel_pt_pmu->type)
				found_pt = true;
			if (intel_bts_pmu &&
			    evsel->attr.type == intel_bts_pmu->type)
				found_bts = true;
		}
	}

	if (found_pt && found_bts) {
		pr_err("intel_pt and intel_bts may not be used together\n");
		*err = -EINVAL;
		return NULL;
	}

	if (found_pt)
		return intel_pt_recording_init(err);

	if (found_bts)
		return intel_bts_recording_init(err);

	return NULL;
}

struct auxtrace_record *auxtrace_record__init(struct perf_evlist *evlist,
					      int *err)
{
	char buffer[64];
	int ret;

	*err = 0;

	ret = get_cpuid(buffer, sizeof(buffer));
	if (ret) {
		*err = ret;
		return NULL;
	}

	if (!strncmp(buffer, "GenuineIntel,", 13))
		return auxtrace_record__init_intel(evlist, err);

	return NULL;
}
a class='active' href='/cgit.cgi/linux/net-next.git/commit/net/nfc/af_nfc.c?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/nfc/af_nfc.c?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/nfc/af_nfc.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/nfc?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08'>nfc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/nfc/af_nfc.c?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08'>af_nfc.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='11e3b725cfc282efe9d4a354153e99d86a16af08'/><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>Ard Biesheuvel &lt;ard.biesheuvel@linaro.org&gt;</td><td class='right'>2017-01-17 13:46:29 +0000</td></tr>
<tr><th>committer</th><td>Herbert Xu &lt;herbert@gondor.apana.org.au&gt;</td><td class='right'>2017-01-23 22:41:33 +0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/nfc/af_nfc.c?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08'>11e3b725cfc282efe9d4a354153e99d86a16af08</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/nfc/af_nfc.c?id=11e3b725cfc282efe9d4a354153e99d86a16af08'>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=11e3b725cfc282efe9d4a354153e99d86a16af08'>8b5b9e0e1bcae1ab98ee652ffb7b13b05c209bd6</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/nfc/af_nfc.c?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08'>net/nfc/af_nfc.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/nfc/af_nfc.c?h=nds-private-remove&amp;id=d6040764adcb5cb6de1489422411d701c158bb69'>d6040764adcb5cb6de1489422411d701c158bb69</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/nfc/af_nfc.c?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08&amp;id2=d6040764adcb5cb6de1489422411d701c158bb69'>diff</a>)</td></tr></table>
<div class='commit-subject'>crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes</div><div class='commit-msg'>Update the ARMv8 Crypto Extensions and the plain NEON AES implementations
in CBC and CTR modes to return the next IV back to the skcipher API client.
This is necessary for chaining to work correctly.

Note that for CTR, this is only done if the request is a round multiple of
the block size, since otherwise, chaining is impossible anyway.

Cc: &lt;stable@vger.kernel.org&gt; # v3.16+
Signed-off-by: Ard Biesheuvel &lt;ard.biesheuvel@linaro.org&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=11e3b725cfc282efe9d4a354153e99d86a16af08'>Diffstat</a> (limited to 'net/nfc/af_nfc.c')</div><table summary='diffstat' class='diffstat'>