From: Christian 'Ansuel' Marangi <ansuelsmth@gmail.com>
To: MyungJoo Ham <myungjoo.ham@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Saravana Kannan <skannan@codeaurora.org>,
Sibi Sankar <sibis@codeaurora.org>,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Christian 'Ansuel' Marangi <ansuelsmth@gmail.com>
Subject: [PATCH 0/5] PM / devfreq: Various Fixes to cpufreq based passive governor
Date: Mon, 6 Jun 2022 13:10:59 +0200 [thread overview]
Message-ID: <20220606111104.14534-1-ansuelsmth@gmail.com> (raw)
While developing a krait cache scaling devfreq driver I encounter tons
of panics and errors with using the new cpufreq passive governor
functions. While the krait cache scaling is still WIP and required some
testing I would like to push all the fixes to make the new
implementation wroking since currently with a the governor
PROBE_DEFERRing all sort of things happen from kernel panic from invalid
address access to freq_table getting corrupted.
With the following fixes my WIP driver works correctly without any
warning/problems.
Christian 'Ansuel' Marangi (5):
PM / devfreq: Fix cpufreq passive unregister erroring on PROBE_DEFER
PM / devfreq: Fix kernel warning with cpufreq passive register fail
PM / devfreq: Fix kernel panic with cpu based scaling to passive gov
PM / devfreq: Rework freq_table to be local to devfreq struct
PM / devfreq: Mute warning on governor PROBE_DEFER
drivers/devfreq/devfreq.c | 75 ++++++++++++++----------------
drivers/devfreq/governor_passive.c | 39 ++++++----------
include/linux/devfreq.h | 4 ++
3 files changed, 53 insertions(+), 65 deletions(-)
--
2.36.1
next reply other threads:[~2022-06-06 11:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-06 11:10 Christian 'Ansuel' Marangi [this message]
2022-06-06 11:11 ` [PATCH 1/5] PM / devfreq: Fix cpufreq passive unregister erroring on PROBE_DEFER Christian 'Ansuel' Marangi
2022-06-06 11:11 ` [PATCH 2/5] PM / devfreq: Fix kernel warning with cpufreq passive register fail Christian 'Ansuel' Marangi
2022-06-06 11:11 ` [PATCH 3/5] PM / devfreq: Fix kernel panic with cpu based scaling to passive gov Christian 'Ansuel' Marangi
2022-06-06 11:11 ` [PATCH 4/5] PM / devfreq: Rework freq_table to be local to devfreq struct Christian 'Ansuel' Marangi
2022-06-06 11:11 ` [PATCH 5/5] PM / devfreq: Mute warning on governor PROBE_DEFER Christian 'Ansuel' Marangi
-- strict thread matches above, loose matches on Subject: below --
2022-06-10 3:25 [PATCH 1/5] PM / devfreq: Fix cpufreq passive unregister erroring on PROBE_DEFER kernel test robot
2022-06-10 6:41 ` Dan Carpenter
2022-06-10 6:41 ` Dan Carpenter
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=20220606111104.14534-1-ansuelsmth@gmail.com \
--to=ansuelsmth@gmail.com \
--cc=cw00.choi@samsung.com \
--cc=kyungmin.park@samsung.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=myungjoo.ham@samsung.com \
--cc=sibis@codeaurora.org \
--cc=skannan@codeaurora.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.