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From: Jiri Olsa <jolsa@redhat.com>
To: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Andi Kleen <andi@firstfloor.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	Kanaka Juvva <kanaka.d.juvva@intel.com>,
	Vikas Shivappa <vikas.shivappa@linux.intel.com>,
	Matt Fleming <matt.fleming@intel.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: Re: [PATCH 5/9] perf/x86/intel: Add Intel Cache QoS Monitoring support
Date: Sun, 25 Jan 2015 19:34:55 +0100	[thread overview]
Message-ID: <20150125183455.GA15208@krava.brq.redhat.com> (raw)
In-Reply-To: <1422038748-21397-6-git-send-email-matt@codeblueprint.co.uk>

On Fri, Jan 23, 2015 at 06:45:44PM +0000, Matt Fleming wrote:

SNIP

> +	int phys_id = topology_physical_package_id(cpu);
> +	int i;
> +
> +	for_each_cpu(i, &cqm_cpumask) {
> +		if (phys_id == topology_physical_package_id(i))
> +			return;	/* already got reader for this socket */
> +	}
> +
> +	cpumask_set_cpu(cpu, &cqm_cpumask);
> +}
> +
> +static void intel_cqm_cpu_prepare(unsigned int cpu)
> +{
> +	struct intel_cqm_state *state = &per_cpu(cqm_state, cpu);
> +	struct cpuinfo_x86 *c = &cpu_data(cpu);
> +
> +	raw_spin_lock_init(&state->lock);
> +	state->rmid = 0;

shouldn't you also init state->cnt?

jirka

  reply	other threads:[~2015-01-25 18:35 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-23 18:45 [PATCH v5 0/9] perf: " Matt Fleming
2015-01-23 18:45 ` [PATCH 1/9] perf: Make perf_cgroup_from_task() global Matt Fleming
2015-02-26  4:14   ` [tip:perf/x86] " tip-bot for Matt Fleming
2015-01-23 18:45 ` [PATCH 2/9] perf: Add ->count() function to read per-package counters Matt Fleming
2015-02-26  4:14   ` [tip:perf/x86] " tip-bot for Matt Fleming
2015-01-23 18:45 ` [PATCH 3/9] perf: Move cgroup init before PMU ->event_init() Matt Fleming
2015-02-26  4:14   ` [tip:perf/x86] " tip-bot for Matt Fleming
2015-01-23 18:45 ` [PATCH 4/9] x86: Add support for Intel Cache QoS Monitoring (CQM) detection Matt Fleming
2015-02-26  4:14   ` [tip:perf/x86] x86: Add support for Intel Cache QoS Monitoring ( CQM) detection tip-bot for Peter P Waskiewicz Jr
2015-01-23 18:45 ` [PATCH 5/9] perf/x86/intel: Add Intel Cache QoS Monitoring support Matt Fleming
2015-01-25 18:34   ` Jiri Olsa [this message]
2015-01-25 23:07     ` Matt Fleming
2015-02-26  4:15   ` [tip:perf/x86] " tip-bot for Matt Fleming
2015-02-26 18:47     ` Matt Fleming
2015-02-26 19:40       ` Peter Zijlstra
2015-03-23 12:25       ` [tip:perf/x86] perf/x86/intel: Fix Makefile to actually build the cqm driver tip-bot for Matt Fleming
2015-01-23 18:45 ` [PATCH 6/9] perf/x86/intel: Implement LRU monitoring ID allocation for CQM Matt Fleming
2015-02-26  4:15   ` [tip:perf/x86] " tip-bot for Matt Fleming
2015-01-23 18:45 ` [PATCH 7/9] perf/x86/intel: Support task events with Intel CQM Matt Fleming
2015-02-26  4:15   ` [tip:perf/x86] " tip-bot for Matt Fleming
2015-03-04  4:16     ` Vince Weaver
2015-03-05  0:55       ` Ingo Molnar
2015-03-05 21:10         ` Peter Zijlstra
2015-03-23 12:26           ` [tip:perf/x86] perf: Remove type specific target pointers tip-bot for Peter Zijlstra
2015-01-23 18:45 ` [PATCH v5 8/9] perf/x86/intel: Perform rotation on Intel CQM RMIDs Matt Fleming
2015-02-26  4:16   ` [tip:perf/x86] " tip-bot for Matt Fleming
2015-01-23 18:45 ` [PATCH v5 9/9] perf/x86/intel: Enable conflicting event scheduling for CQM Matt Fleming
2015-02-26  4:16   ` [tip:perf/x86] " tip-bot for Matt Fleming

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