#include <sys/types.h>
#include <regex.h>

struct arm_annotate {
	regex_t call_insn,
		jump_insn;
};

static struct ins_ops *arm__associate_instruction_ops(struct arch *arch, const char *name)
{
	struct arm_annotate *arm = arch->priv;
	struct ins_ops *ops;
	regmatch_t match[2];

	if (!regexec(&arm->call_insn, name, 2, match, 0))
		ops = &call_ops;
	else if (!regexec(&arm->jump_insn, name, 2, match, 0))
		ops = &jump_ops;
	else
		return NULL;

	arch__associate_ins_ops(arch, name, ops);
	return ops;
}

static int arm__annotate_init(struct arch *arch)
{
	struct arm_annotate *arm;
	int err;

	if (arch->initialized)
		return 0;

	arm = zalloc(sizeof(*arm));
	if (!arm)
		return -1;

#define ARM_CONDS "(cc|cs|eq|ge|gt|hi|le|ls|lt|mi|ne|pl|vc|vs)"
	err = regcomp(&arm->call_insn, "^blx?" ARM_CONDS "?$", REG_EXTENDED);
	if (err)
		goto out_free_arm;
	err = regcomp(&arm->jump_insn, "^bx?" ARM_CONDS "?$", REG_EXTENDED);
	if (err)
		goto out_free_call;
#undef ARM_CONDS

	arch->initialized = true;
	arch->priv	  = arm;
	arch->associate_instruction_ops   = arm__associate_instruction_ops;
	arch->objdump.comment_char	  = ';';
	arch->objdump.skip_functions_char = '+';
	return 0;

out_free_call:
	regfree(&arm->call_insn);
out_free_arm:
	free(arm);
	return -1;
}
op-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>perf</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/bench?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>bench</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='c26665ab5c49ad3e142e0f054ca3204f259ba09c'/><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>Borislav Petkov &lt;bp@suse.de&gt;</td><td class='right'>2017-01-20 21:29:40 +0100</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-23 09:39:55 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/bench?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>c26665ab5c49ad3e142e0f054ca3204f259ba09c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/bench?id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>patch</a>)</td></tr>
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<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/bench?h=nds-private-remove&amp;id=7a308bb3016f57e5be11a677d15b821536419d36'>7a308bb3016f57e5be11a677d15b821536419d36</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/bench?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c&amp;id2=7a308bb3016f57e5be11a677d15b821536419d36'>diff</a>)</td></tr></table>
<div class='commit-subject'>x86/microcode/intel: Drop stashed AP patch pointer optimization</div><div class='commit-msg'>This was meant to save us the scanning of the microcode containter in
the initrd since the first AP had already done that but it can also hurt
us:

Imagine a single hyperthreaded CPU (Intel(R) Atom(TM) CPU N270, for
example) which updates the microcode on the BSP but since the microcode
engine is shared between the two threads, the update on CPU1 doesn't
happen because it has already happened on CPU0 and we don't find a newer
microcode revision on CPU1.

Which doesn't set the intel_ucode_patch pointer and at initrd
jettisoning time we don't save the microcode patch for later
application.

Now, when we suspend to RAM, the loaded microcode gets cleared so we
need to reload but there's no patch saved in the cache.

Removing the optimization fixes this issue and all is fine and dandy.

Fixes: 06b8534cb728 ("x86/microcode: Rework microcode loading")
Signed-off-by: Borislav Petkov &lt;bp@suse.de&gt;
Reviewed-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Link: http://lkml.kernel.org/r/20170120202955.4091-2-bp@alien8.de
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;

</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>Diffstat</a> (limited to 'tools/perf/bench')</div><table summary='diffstat' class='diffstat'>