From: Saravana Kannan <skannan@codeaurora.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Linux PM list <linux-pm@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Juri Lelli <juri.lelli@arm.com>,
Steve Muckle <steve.muckle@linaro.org>
Subject: Re: [PATCH 3/11] cpufreq: governor: Use common global_dbs_data pointer
Date: Wed, 03 Feb 2016 17:47:55 -0800 [thread overview]
Message-ID: <56B2ADCB.8030400@codeaurora.org> (raw)
In-Reply-To: <56B2A53C.8080503@codeaurora.org>
On 02/03/2016 05:11 PM, Saravana Kannan wrote:
> On 02/03/2016 03:22 PM, Rafael J. Wysocki wrote:
>> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>>
>> If the ondemand and conservative governors cannot use per-policy
>> tunables (CPUFREQ_HAVE_GOVERNOR_PER_POLICY is not set in the cpufreq
>> driver), all policy objects point to the same single dbs_data object.
>> Additionally, that object is pointed to by a global pointer hidden in
>> the governor's data structures.
>>
>> There is no reason for that pointer to be buried in those
>> data structures, though, so make it explicitly global.
>>
>> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>> ---
>> drivers/cpufreq/cpufreq_governor.c | 20 ++++++++++----------
>> drivers/cpufreq/cpufreq_governor.h | 20 ++++++++++----------
>> 2 files changed, 20 insertions(+), 20 deletions(-)
>>
>> Index: linux-pm/drivers/cpufreq/cpufreq_governor.h
>> ===================================================================
>> --- linux-pm.orig/drivers/cpufreq/cpufreq_governor.h
>> +++ linux-pm/drivers/cpufreq/cpufreq_governor.h
>> @@ -78,7 +78,7 @@ __ATTR(_name, 0644, show_##_name##_gov_p
>> static ssize_t show_##file_name##_gov_sys \
>> (struct kobject *kobj, struct attribute *attr, char *buf) \
>> { \
>> - struct _gov##_dbs_tuners *tuners =
>> _gov##_dbs_cdata.gdbs_data->tuners; \
>> + struct _gov##_dbs_tuners *tuners = global_dbs_data->tuners; \
>> return sprintf(buf, "%u\n", tuners->file_name); \
>> } \
>> \
>> @@ -94,7 +94,7 @@ static ssize_t show_##file_name##_gov_po
>> static ssize_t store_##file_name##_gov_sys \
>> (struct kobject *kobj, struct attribute *attr, const char *buf,
>> size_t count) \
>> { \
>> - struct dbs_data *dbs_data = _gov##_dbs_cdata.gdbs_data; \
>> + struct dbs_data *dbs_data = global_dbs_data; \
>> return store_##file_name(dbs_data, buf, count); \
>> } \
>> \
>> @@ -201,19 +201,14 @@ struct cs_dbs_tuners {
>> /* Common Governor data across policies */
>> struct dbs_data;
>> struct common_dbs_data {
>> - /* Common across governors */
>> + struct cpufreq_governor gov;
>> +
Actually, this line is completely unrelated to this patch. Should go on
Patch 5?
>
> Cautiously Acked-by: Saravana Kannan <skannan@codeaurora.org>
Good call on the "cautiously" I guess!
-Saravana
--
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-02-04 1:47 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-03 23:12 [PATCH 0/11] cpufreq: governor: ondemand/conservative data structures rework Rafael J. Wysocki
2016-02-03 23:14 ` [PATCH 1/11] cpufreq: Clean up default and fallback governor setup Rafael J. Wysocki
2016-02-04 0:55 ` Saravana Kannan
2016-02-04 5:03 ` Viresh Kumar
2016-02-03 23:16 ` [PATCH 2/11] cpufreq: governor: Use common mutex for dbs_data protection Rafael J. Wysocki
2016-02-04 0:59 ` Saravana Kannan
2016-02-04 5:09 ` Viresh Kumar
2016-02-04 16:46 ` Rafael J. Wysocki
2016-02-05 2:59 ` Viresh Kumar
2016-02-05 3:06 ` Rafael J. Wysocki
2016-02-05 3:15 ` Rafael J. Wysocki
2016-02-05 3:17 ` Rafael J. Wysocki
2016-02-05 3:24 ` Viresh Kumar
2016-02-05 3:33 ` Rafael J. Wysocki
2016-02-05 3:22 ` Viresh Kumar
2016-02-03 23:22 ` [PATCH 3/11] cpufreq: governor: Use common global_dbs_data pointer Rafael J. Wysocki
2016-02-04 1:11 ` Saravana Kannan
2016-02-04 1:25 ` Rafael J. Wysocki
2016-02-04 1:40 ` Saravana Kannan
2016-02-04 5:38 ` Viresh Kumar
2016-02-04 1:47 ` Saravana Kannan [this message]
2016-02-04 5:36 ` Viresh Kumar
[not found] ` <CAHZ_5WxJSDtFyFdCc-D2=HSaPON=3rzUxpxPYsCyZvrV1Nv3qw@mail.gmail.com>
2016-02-04 8:25 ` Viresh Kumar
2016-02-04 11:31 ` Gautham R Shenoy
2016-02-04 11:35 ` Viresh Kumar
2016-02-04 16:52 ` Rafael J. Wysocki
2016-02-05 3:02 ` Viresh Kumar
2016-02-05 3:10 ` Rafael J. Wysocki
2016-02-03 23:29 ` [PATCH 4/11] cpufreq: governor: Avoid passing dbs_data pointers around unnecessarily Rafael J. Wysocki
2016-02-04 1:37 ` Saravana Kannan
2016-02-03 23:31 ` [PATCH 5/11] cpufreq: governor: Put governor structure into common_dbs_data Rafael J. Wysocki
2016-02-04 1:57 ` Saravana Kannan
2016-02-03 23:32 ` [PATCH 6/11] cpufreq: governor: Rename some data types and variables Rafael J. Wysocki
2016-02-03 23:33 ` [PATCH 7/11] cpufreq: governor: Rework cpufreq_governor_dbs() Rafael J. Wysocki
2016-02-04 2:03 ` Saravana Kannan
2016-02-03 23:35 ` [PATCH 8/11] cpufreq: governor: Drop the gov pointer from struct dbs_data Rafael J. Wysocki
2016-02-03 23:35 ` [PATCH 9/11] cpufreq: governor: Rename cpu_common_dbs_info to policy_dbs_info Rafael J. Wysocki
2016-02-03 23:37 ` [PATCH 10/11] cpufreq: governor: Rearrange governor data structures Rafael J. Wysocki
2016-02-03 23:38 ` [PATCH 11/11] cpufreq: governor: Drop cpu argument from dbs_check_cpu() Rafael J. Wysocki
2016-02-04 5:40 ` [PATCH 0/11] cpufreq: governor: ondemand/conservative data structures rework Viresh Kumar
2016-02-04 17:22 ` Rafael J. Wysocki
2016-02-05 2:07 ` [PATCH v2 0/10] " Rafael J. Wysocki
2016-02-05 2:11 ` [PATCH v2 1/10] cpufreq: Clean up default and fallback governor setup Rafael J. Wysocki
2016-02-10 5:15 ` Gautham R Shenoy
2016-02-10 5:48 ` Gautham R Shenoy
2016-02-05 2:14 ` [PATCH v2 2/10] cpufreq: governor: Use common mutex for dbs_data protection Rafael J. Wysocki
2016-02-05 6:53 ` Viresh Kumar
2016-02-05 22:59 ` Rafael J. Wysocki
2016-02-07 9:31 ` Viresh Kumar
2016-02-07 14:33 ` Rafael J. Wysocki
2016-02-05 2:15 ` [PATCH v2 3/10] cpufreq: governor: Avoid passing dbs_data pointers around unnecessarily Rafael J. Wysocki
2016-02-05 7:09 ` Viresh Kumar
2016-02-05 2:16 ` [PATCH v2 4/10] cpufreq: governor: Put governor structure into common_dbs_data Rafael J. Wysocki
2016-02-05 7:13 ` Viresh Kumar
2016-02-05 2:17 ` [PATCH v2 5/10] cpufreq: governor: Rename some data types and variables Rafael J. Wysocki
2016-02-05 7:17 ` Viresh Kumar
2016-02-05 2:18 ` [PATCH v2 6/10] cpufreq: governor: Rework cpufreq_governor_dbs() Rafael J. Wysocki
2016-02-05 8:14 ` Viresh Kumar
2016-02-05 2:19 ` [PATCH v2 7/10] cpufreq: governor: Drop the gov pointer from struct dbs_data Rafael J. Wysocki
2016-02-05 8:28 ` Viresh Kumar
2016-02-05 2:20 ` [PATCH v2 8/10] cpufreq: governor: Rename cpu_common_dbs_info to policy_dbs_info Rafael J. Wysocki
2016-02-05 8:34 ` Viresh Kumar
2016-02-05 22:50 ` Rafael J. Wysocki
2016-02-06 12:48 ` [PATCH v3 " Rafael J. Wysocki
2016-02-07 9:31 ` Viresh Kumar
2016-02-05 2:21 ` [PATCH v2 9/10] cpufreq: governor: Rearrange governor data structures Rafael J. Wysocki
2016-02-05 9:13 ` Viresh Kumar
2016-02-05 22:47 ` Rafael J. Wysocki
2016-02-07 9:29 ` Viresh Kumar
2016-02-07 14:34 ` Rafael J. Wysocki
2016-02-05 2:21 ` [PATCH v2 10/10] cpufreq: governor: Drop cpu argument from dbs_check_cpu() Rafael J. Wysocki
2016-02-05 9:15 ` Viresh Kumar
2016-02-06 12:50 ` [PATCH v3 " Rafael J. Wysocki
2016-02-07 9:32 ` Viresh Kumar
2016-02-06 12:44 ` [PATCH v2 0/10] cpufreq: governor: ondemand/conservative data structures rework Rafael J. Wysocki
2016-02-07 15:22 ` [PATCH 0/3] cpufreq: governor: Data structure rearrangement Rafael J. Wysocki
2016-02-07 15:23 ` [PATCH 1/3] cpufreq: governor: Simplify cpufreq_governor_limits() Rafael J. Wysocki
2016-02-07 15:40 ` Viresh Kumar
2016-02-08 0:59 ` Rafael J. Wysocki
2016-02-07 15:24 ` [PATCH 2/3] cpufreq: governor: Rearrange governor data structures Rafael J. Wysocki
2016-02-07 15:45 ` Viresh Kumar
2016-02-07 15:54 ` Viresh Kumar
2016-02-07 15:55 ` Viresh Kumar
2016-02-07 15:25 ` [PATCH 3/3] cpufreq: governor: Symmetrize cpu_dbs_info initialization and cleanup Rafael J. Wysocki
2016-02-07 15:52 ` Viresh Kumar
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