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Thu, 17 Jun 2021 05:46:47 +0000 (GMT) From: Chanwoo Choi To: andrew-sh.cheng@mediatek.com, hsinyi@chromium.org Cc: sibis@codeaurora.org, saravanak@google.com, myungjoo.ham@samsung.com, kyungmin.park@samsung.com, cw00.choi@samsung.com, chanwoo@kernel.org, cwchoi00@gmail.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/4] PM / devfreq: Add cpu based scaling support to passive governor Date: Thu, 17 Jun 2021 15:05:42 +0900 Message-Id: <20210617060546.26933-1-cw00.choi@samsung.com> X-Mailer: git-send-email 2.17.1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrIKsWRmVeSWpSXmKPExsWy7bCmru6Jh6cSDFq+sltsX/+C1WLijSss Fte/PGe1eHZU22JC63Zmi7NNb9gtLu+aw2bxufcIo8XtxhVsFl2H/rJZXFv4ntWB22N2w0UW j8t9vUweO2fdZfdYsKnUY9OqTjaPlpP7WTz6tqxi9Pi8SS6AIyrbJiM1MSW1SCE1Lzk/JTMv 3VbJOzjeOd7UzMBQ19DSwlxJIS8xN9VWycUnQNctMwfoTiWFssScUqBQQGJxsZK+nU1RfmlJ qkJGfnGJrVJqQUpOgWWBXnFibnFpXrpecn6ulaGBgZEpUGFCdsa7KeEFC/gqfv3tZWtgvMrd xcjJISFgIvFh2g7mLkYuDiGBHYwSbSc7mUESQgKfGCU+LhaFSHxmlPjZ1csI03H63jU2iMQu RomJd58zQThfGCWO/FjHAlLFJqAlsf/FDTYQW0TAVGLP4YksIEXMAvcYJR4tPw+WEBYIk3ja 8Z8JxGYRUJV4/fg12G5eASuJWRMPsEOsk5dYveEA2IESAo/YJa7sfs0EkXCR6L+ykxXCFpZ4 dXwLVIOUxOd3e9kg7GqJlSePsEE0dzBKbNl/AarBWGL/0slAgziATtKUWL9LHyKsKLHz91yw P5kF+CTefe1hBSmREOCV6GgTgihRlrj84C7UCZISi9s7oVZ5SNxYvpQJEnaxEi8ffWSZwCg7 C2HBAkbGVYxiqQXFuempxYYFhsixtIkRnPa0THcwTnz7Qe8QIxMH4yFGCQ5mJRFe3eITCUK8 KYmVValF+fFFpTmpxYcYTYEBNpFZSjQ5H5h480riDU2NjI2NLUwMzUwNDZXEeXeyHUoQEkhP LEnNTk0tSC2C6WPi4JRqYLIRrShvWmnGM/2lxERmRSsOBVPrhr/svqqVfN0RDrOXlrPf/bOg 2LuOw+qw5t2l/4+9YNh4+qyT0on/95+9d/3s3+HzSPTHFNczFR/UJmQ6SV/0bc9f3D5NqKLp Vz93lRzf0q/VrGduTTjkq64j8IpZ/SVD1Kx82fIT0ZNPPNEX8TK4Y/8y+j9jiDHL8Ycy554t 2tW3aMWZhJrvxzjUXwcwvA+feEZZcUrkHNF4piquzg5H7hzOTn/eA7+s4oQPWr2ZufOmeOXC GYnvEoorfZM1plzLWz2t5/UNXa0Hld3PPu6paUuoiThvbsO69uKKI2KSxp+dGVpY+xzb92nm 7FLZdaGh6O7pSxX9c0wjlViKMxINtZiLihMBSRYViQQEAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprHLMWRmVeSWpSXmKPExsWy7bCSnO7xh6cSDC7uELDYvv4Fq8XEG1dY LK5/ec5q8eyotsWE1u3MFmeb3rBbXN41h83ic+8RRovbjSvYLLoO/WWzuLbwPasDt8fshoss Hpf7epk8ds66y+6xYFOpx6ZVnWweLSf3s3j0bVnF6PF5k1wARxSXTUpqTmZZapG+XQJXxrsp 4QUL+Cp+/e1la2C8yt3FyMkhIWAicfreNbYuRi4OIYEdjBJnl69hhkhISky7eBTI5gCyhSUO Hy6GqPnEKLHt9jMmkBo2AS2J/S9usIHUiAiYSxy/Eg1SwyzwilHi3tnHrCA1wgIhEocvzwer ZxFQlXj9+DXYfF4BK4lZEw+wQ+ySl1i94QDzBEaeBYwMqxglUwuKc9Nziw0LjPJSy/WKE3OL S/PS9ZLzczcxgoNQS2sH455VH/QOMTJxMB5ilOBgVhLh1S0+kSDEm5JYWZValB9fVJqTWnyI UZqDRUmc90LXyXghgfTEktTs1NSC1CKYLBMHp1QD02TPnpJrUz8vD5+5PLI9Vl/EyO7qYon2 +48yeBZXPX8ulr/55KmFfs9YgrjOVof9qfgnEHXoaqRQhLFX0Mk5nD/E6rqumn48Ub0sLKC4 49EkVb+FxxmZypUZrCUFPeekKWmLRMnLmchp1eyXbp7PJyuXvy16YmfSNPuZoZw9fxw8In5F pXaZTD7y/2O/9LuNUyb57Jkz+bbg+usPVxyI3RK07f3P/eYfPM6cPSGs9yo4YccPvikO+fKi nhUymxcsOcP32vHxIZc9zw9x28z0yJ3t0PlxvadLXeD2ew8yH878P+vZjbzMynX1WV/lWiab /7m2iyWaU1E57fHNo1fMZ04qm9i6N//Ub42DT6e4pCqxFGckGmoxFxUnAgCm2jZlsQIAAA== X-CMS-MailID: 20210617054647epcas1p3f1ef3ddef736496151ff77df4f50749a X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210617054647epcas1p3f1ef3ddef736496151ff77df4f50749a References: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The devfreq passive governor has already supported the devfreq parent device for coupling the frequency change if some hardware have the constraints such as power sharing and so on. Add cpu based scaling support to passive governor with required-opp property. It uses the cpufreq notifier to catch the frequency change timing of cpufreq and get the next frequency according to new cpu frequency by using required-opp property. It is based on patch[1] and then just code clean-up by myself. Make the common code for both passive_devfreq and passive_cpufreq parent type to remove the duplicate code. The patch[2] is required for this patchset to use required-opp property. [1] [RFC,v2] PM / devfreq: Add cpu based scaling support to passive_governor - https://lore.kernel.org/patchwork/patch/1101049/ [2] opp: Allow required-opps to be used for non genpd use cases - https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git/commit/?h=opp/linux-next&id=5736929761d187499bdf8e2019090e3ed43d3d7b Dear Andrew-sh.Cheng and Hsin-Yi Wang, Please test your patches based on this patchset and then reply the test result with your Tested-by tag or reviewed-by tag. Thanks for your work. Chanwoo Choi (3): PM / devfreq: passive: Fix get_target_freq when not using required-opp PM / devfreq: Export devfreq_get_freq_ragne symbol within devfreq PM / devfreq: passive: Reduce duplicate code when passive_devfreq case Saravana Kannan (1): PM / devfreq: Add cpu based scaling support to passive governor drivers/devfreq/devfreq.c | 17 +- drivers/devfreq/governor.h | 24 +++ drivers/devfreq/governor_passive.c | 325 +++++++++++++++++++++++------ include/linux/devfreq.h | 16 +- 4 files changed, 310 insertions(+), 72 deletions(-) -- 2.17.1