From: Peter Zijlstra <peterz@infradead.org>
To: Megha Dey <megha.dey@linux.intel.com>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com,
hpa@zytor.com, andriy.shevchenko@linux.intel.com,
kstewart@linuxfoundation.org, yu-cheng.yu@intel.com,
len.brown@intel.com, gregkh@linuxfoundation.org, acme@kernel.org,
alexander.shishkin@linux.intel.com, jolsa@redhat.com,
namhyung@kernel.org, vikas.shivappa@linux.intel.com,
pombredanne@nexb.com, me@kylehuey.com, bp@suse.de,
grzegorz.andrejczuk@intel.com, tony.luck@intel.com,
corbet@lwn.net, ravi.v.shankar@intel.com, megha.dey@intel.com
Subject: Re: [PATCH V2 2/3] perf/x86/intel/bm.c: Add Intel Branch Monitoring support
Date: Mon, 20 Nov 2017 12:57:14 +0100 [thread overview]
Message-ID: <20171120115714.hden247iet4bf2t5@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <1510970046-25387-3-git-send-email-megha.dey@linux.intel.com>
On Fri, Nov 17, 2017 at 05:54:05PM -0800, Megha Dey wrote:
> + mutex_lock(&bm_counter_mutex);
> + for (i = 0; i < BM_MAX_COUNTERS; i++) {
> + if (bm_counter_owner[i] == NULL) {
> + counter_to_use = i;
> + bm_counter_owner[i] = event;
> + break;
> + }
> + }
> + mutex_unlock(&bm_counter_mutex);
> +
> + if (counter_to_use == -1)
> + return -EBUSY;
> +static struct pmu intel_bm_pmu = {
> + .task_ctx_nr = perf_sw_context,
> + .attr_groups = intel_bm_attr_groups,
> + .event_init = intel_bm_event_init,
> + .add = intel_bm_event_add,
> + .del = intel_bm_event_del,
> +};
Still horrid.. still no.
next prev parent reply other threads:[~2017-11-20 11:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-18 1:54 [PATCH V2 0/3] perf/x86/intel: Add " Megha Dey
2017-11-18 1:54 ` [PATCH V2 1/3] x86/cpu/intel: Add Cannonlake to Intel family Megha Dey
2017-11-18 1:54 ` [PATCH V2 2/3] perf/x86/intel/bm.c: Add Intel Branch Monitoring support Megha Dey
2017-11-20 11:57 ` Peter Zijlstra [this message]
2017-12-12 21:10 ` Megha Dey
2017-12-12 22:32 ` Peter Zijlstra
2017-12-12 23:08 ` Megha Dey
2017-12-13 7:21 ` Peter Zijlstra
2017-12-20 21:23 ` Megha Dey
2018-04-04 21:33 ` Megha Dey
2017-11-20 14:10 ` Jiri Olsa
2017-12-12 21:03 ` Megha Dey
2017-11-18 1:54 ` [PATCH V2 3/3] x86, bm: Add documentation on Intel Branch Monitoring Megha Dey
2017-11-20 14:07 ` Jiri Olsa
2017-12-12 21:05 ` Megha Dey
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