On Sat 26 Mar 08:51 PDT 2022, Dmitry Baryshkov wrote: > This patchseries aims at fixing and improving CPU hotplug support on > Qualcomm platforms. First three patches are the fixes for the LMH > support in the cpufreq driver. The last patch adds support for > lightweight offline() and online() callbacks which are used instead of > exit() and init() each time the CPU is put offline or back online. > > Patches 1-3 being pure simple fixes can be applied during the -rc > stage, while patch 4 is targeting next development cycle > Viresh, please consider picking up patch 1-3 for v5.18-rc. Thanks, Bjorn > Changes since v3: > - Readd throttled_freq calculation disappearing from the third patch. > > Changes since v2: > - Point Fixes tag from the first patch to the correct commit > - Replace huge patch 2 with one-liner thanks to being able to use > policy->related_cpus instead of policy->cpus > > Changes since v1: > - Update commit message for the first patch to describe why dropping > affinity hint is required (before calling free_irq()), > - Fixed commit message for the second patch to include messages > generated using the mainline kernel w/o additional patches, > - Changed third patch to use dev_warn_ratelimited(), > - Reworked last patch to move request_irq/free_irq to online()/offline() > to make sure that the IRQ isn't left enabled after the CPU has been > put offline. > > > Dmitry Baryshkov (4): > cpufreq: qcom-hw: drop affinity hint before freeing the IRQ > cpufreq: qcom-hw: fix the race between LMH worker and cpuhp > cpufreq: qcom-hw: fix the opp entries refcounting > cpufreq: qcom-hw: provide online/offline operations > > drivers/cpufreq/qcom-cpufreq-hw.c | 45 ++++++++++++++++++++++++++----- > 1 file changed, 38 insertions(+), 7 deletions(-) > > -- > 2.35.1 >
