From: Jiri Olsa <jolsa@redhat.com>
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,
peterz@infradead.org, acme@kernel.org,
alexander.shishkin@linux.intel.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 V0 2/3] perf/x86/intel/bm.c: Add Intel Branch Monitoring support
Date: Sat, 4 Nov 2017 14:26:46 +0100 [thread overview]
Message-ID: <20171104132645.GF8454@krava> (raw)
In-Reply-To: <1509732006-5917-3-git-send-email-megha.dey@linux.intel.com>
On Fri, Nov 03, 2017 at 11:00:05AM -0700, Megha Dey wrote:
SNIP
> +
> +static int intel_bm_event_nmi_handler(unsigned int cmd, struct pt_regs *regs)
> +{
> + struct perf_event *event;
> + union bm_detect_status stat;
> + struct perf_sample_data data;
> + int i;
> + unsigned long x;
> +
> + rdmsrl(BR_DETECT_STATUS_MSR, stat.raw);
> +
> + if (stat.event) {
> + wrmsrl(BR_DETECT_STATUS_MSR, 0);
> + apic_write(APIC_LVTPC, APIC_DM_NMI);
> + /*
> + * Issue wake-up to corrresponding polling event
s/rrr/rr/ ;-)
jirka
next prev parent reply other threads:[~2017-11-04 13:27 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-03 18:00 [PATCH V0 0/3] perf/x86/intel: Add Branch Monitoring support Megha Dey
2017-11-03 18:00 ` [PATCH V0 1/3] x86/cpu/intel: Add Cannonlake to Intel family Megha Dey
2017-11-03 18:00 ` [PATCH V0 2/3] perf/x86/intel/bm.c: Add Intel Branch Monitoring support Megha Dey
2017-11-04 13:24 ` Jiri Olsa
2017-11-11 0:42 ` Dey, Megha
2017-11-04 13:25 ` Jiri Olsa
2017-11-11 0:44 ` Dey, Megha
2017-11-04 13:25 ` Jiri Olsa
2017-11-04 13:25 ` Jiri Olsa
2017-11-11 0:50 ` Dey, Megha
2017-11-04 13:26 ` Jiri Olsa
2017-11-11 0:53 ` Dey, Megha
2017-11-04 13:26 ` Jiri Olsa [this message]
[not found] ` <20171106114943.mg6pwpqe6eqlx7w2@ukko.fi.intel.com>
2017-11-10 23:36 ` Megha Dey
2017-11-03 18:00 ` [PATCH V0 3/3] x86, bm: Add documentation on Intel Branch Monitoring Megha Dey
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