From: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
To: linuxppc-dev@ozlabs.org,
Ben Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>,
"Srivatsa S . Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Cc: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
Subject: [PATCH 0/4] powernv:cpufreq: Export nominal and current frequency via sysfs
Date: Mon, 3 Mar 2014 14:03:41 +0530 [thread overview]
Message-ID: <1393835625-25102-1-git-send-email-ego@linux.vnet.ibm.com> (raw)
From: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
Hi,
On IBM POWERNV platforms[1], presently we do not report the current
operating frequency of the processor through the sysfs interface
"cpuinfo_cur_freq" since the cpu frequency driver[1] has not
implemented the ->get(unsigned int cpu) method. Fix this by
implementing the ->get(unsigned int cpu) method which will report the
frequency corresponding to the pstate_id on PMSR on "cpu".
Also, export the nominal frequency of the processor through the sysfs
interface "cpuinfo_nominal_freq" by defining it as a driver attribute.
The patch series depends on the cpu-frequency driver patch-series[1].
[1] http://comments.gmane.org/gmane.linux.ports.ppc.embedded/67905
Thanks and Regards
gautham.
Summary:
==========================
Gautham R. Shenoy (4):
powernv:cpufreq: Create pstate_id_to_freq() helper
powernv:cpufreq: Export nominal frequency via sysfs.
powernv:cpufreq: Create a powernv_cpu_to_core_mask() helper.
powernv:cpufreq: Implement the driver->get() method
drivers/cpufreq/powernv-cpufreq.c | 115 ++++++++++++++++++++++++++++++++++++--
1 file changed, 110 insertions(+), 5 deletions(-)
--
1.8.3.1
next reply other threads:[~2014-03-03 8:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-03 8:33 Gautham R. Shenoy [this message]
2014-03-03 8:33 ` [PATCH 1/4] powernv:cpufreq: Create pstate_id_to_freq() helper Gautham R. Shenoy
2014-03-03 8:33 ` [PATCH 2/4] powernv:cpufreq: Export nominal frequency via sysfs Gautham R. Shenoy
2014-03-03 8:33 ` [PATCH 3/4] powernv:cpufreq: Create a powernv_cpu_to_core_mask() helper Gautham R. Shenoy
2014-03-03 8:33 ` [PATCH 4/4] powernv:cpufreq: Implement the driver->get() method Gautham R. Shenoy
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