linux-kernel - [PATCH v10 1/8] cpufreq: amd-pstate: Document *_limit_* fields in struct amd

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Mon, 25 Mar 2024 11:03:21 +0800
From: Perry Yuan <perry.yuan@....com>
To: <rafael.j.wysocki@...el.com>, <Mario.Limonciello@....com>,
	<viresh.kumar@...aro.org>, <gautham.shenoy@....com>,
	<Borislav.Petkov@....com>, <Ray.Huang@....com>
CC: <Alexander.Deucher@....com>, <Xinmei.Huang@....com>,
	<oleksandr@...alenko.name>, <Xiaojian.Du@....com>, <Li.Meng@....com>,
	<linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v10 1/8] cpufreq: amd-pstate: Document *_limit_* fields in struct amd_cpudata

From: "Gautham R. Shenoy" <gautham.shenoy@....com>

The four fields of struct cpudata namely min_limit_perf,
max_limit_perf, min_limit_freq, max_limit_freq introduced in the
commit febab20caeba("cpufreq/amd-pstate: Fix scaling_min_freq and
scaling_max_freq update") are currently undocumented

Add comments describing these fields

Fixes: febab20caeba("cpufreq/amd-pstate: Fix scaling_min_freq and scaling_max_freq update")
Reviewed-by: Li Meng <li.meng@....com>
Tested-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@....com>
Signed-off-by: Gautham R. Shenoy <gautham.shenoy@....com>
Signed-off-by: Perry Yuan <perry.yuan@....com>
---
 include/linux/amd-pstate.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/amd-pstate.h b/include/linux/amd-pstate.h
index d21838835abd..212f377d615b 100644
--- a/include/linux/amd-pstate.h
+++ b/include/linux/amd-pstate.h
@@ -49,6 +49,10 @@ struct amd_aperf_mperf {
  * @lowest_perf: the absolute lowest performance level of the processor
  * @prefcore_ranking: the preferred core ranking, the higher value indicates a higher
  * 		  priority.
+ * @min_limit_perf: Cached value of the perf corresponding to policy->min
+ * @max_limit_perf: Cached value of the perf corresponding to policy->max
+ * @min_limit_freq: Cached value of policy->min
+ * @max_limit_freq: Cached value of policy->max
  * @max_freq: the frequency that mapped to highest_perf
  * @min_freq: the frequency that mapped to lowest_perf
  * @nominal_freq: the frequency that mapped to nominal_perf
-- 
2.34.1