From: Kristen Carlson Accardi <kristen@linux.intel.com>
To: rjw@rjwysocki.net
Cc: linux-pm@vger.kernel.org, srinivas.pandruvada@linux.intel.com
Subject: [PATCH] intel_pstate: respect cpufreq policy request
Date: Thu, 29 Jan 2015 12:17:13 -0800 [thread overview]
Message-ID: <1422562633-10370-1-git-send-email-kristen@linux.intel.com> (raw)
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
When thermal or other subsystem requests to change the policy,
use that irrepective of whether cpufreq policy is PERFORMANCE or
not. Without this change, when thermal subsystem passive policy wants
to reduce performance, it still runs at 100%.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
---
drivers/cpufreq/intel_pstate.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 742eefb..61ac9c8 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -887,7 +887,8 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
if (!policy->cpuinfo.max_freq)
return -ENODEV;
- if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
+ if (policy->policy == CPUFREQ_POLICY_PERFORMANCE &&
+ policy->max >= policy->cpuinfo.max_freq) {
limits.min_perf_pct = 100;
limits.min_perf = int_tofp(1);
limits.max_policy_pct = 100;
--
1.9.3
reply other threads:[~2015-01-29 20:17 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1422562633-10370-1-git-send-email-kristen@linux.intel.com \
--to=kristen@linux.intel.com \
--cc=linux-pm@vger.kernel.org \
--cc=rjw@rjwysocki.net \
--cc=srinivas.pandruvada@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).