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author | Dmitry Osipenko <digetx@gmail.com> | 2020-04-03 01:24:48 +0300 |
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committer | Chanwoo Choi <cw00.choi@samsung.com> | 2020-05-28 18:02:39 +0900 |
commit | d2216ba3ebea8d8864c5094526b8f9302c01021c (patch) | |
tree | 70e9fcfd6a4787aced7d1c8910d09dd85933ec31 /mm | |
parent | Linux 5.7-rc7 (diff) | |
download | linux-dev-d2216ba3ebea8d8864c5094526b8f9302c01021c.tar.xz linux-dev-d2216ba3ebea8d8864c5094526b8f9302c01021c.zip |
PM / devfreq: tegra30: Make CPUFreq notifier to take into account boosting
We're taking into account both HW memory-accesses + CPU activity based on
current CPU's frequency. For memory-accesses there is a kind of hysteresis
in a form of "boosting" which is managed by the tegra30-devfreq driver.
If current HW memory activity is higher than activity judged based of the
CPU's frequency, then there is no need to schedule cpufreq_update_work
because the result of the work will be a NO-OP. And thus,
tegra_actmon_cpufreq_contribution() should return 0, meaning that at the
moment CPU frequency doesn't contribute anything to the final decision
about required memory clock rate.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions