Introducing AArch64 specific version of arch_freq_get_on_cpu, cashing on
existing implementation for FIE and AMUv1 support.
Additionally wiring it up with cpufreq_verify_current_freq to hopefully
eliminate issues when cpufreq_driver->get() returns frequency that is not
entirely aligned.
The changes have been rather lightly (due to some limitations) tested on
an FVP model.
v2:
- Splitting the patches
- Adding comment for full dyntick mode
- Plugging arch_freq_get_on_cpu into cpufreq_verify_current_freq instead
of in show_cpuinfo_cur_freq to allow the framework to stay more in sync
with potential freq changes
[1]
https://lore.kernel.org/lkml/20230606155754.245998-1-beata.michalska@arm.com/
Beata Michalska (1):
arm64: Provide an AMU-based version of arch_freq_get_on_cpu
Sumit Gupta (1):
cpufreq: Wire-up arch-flavored freq info into
cpufreq_verify_current_freq
arch/arm64/kernel/topology.c | 39 ++++++++++++++++++++++++++++++++++++
drivers/cpufreq/cpufreq.c | 3 ++-
2 files changed, 41 insertions(+), 1 deletion(-)
Introducing AArch64 specific version of arch_freq_get_on_cpu, cashing on existing implementation for FIE and AMUv1 support. Additionally wiring it up with cpufreq_verify_current_freq to hopefully eliminate issues when cpufreq_driver->get() returns frequency that is not entirely aligned. The changes have been rather lightly (due to some limitations) tested on an FVP model. v2: - Splitting the patches - Adding comment for full dyntick mode - Plugging arch_freq_get_on_cpu into cpufreq_verify_current_freq instead of in show_cpuinfo_cur_freq to allow the framework to stay more in sync with potential freq changes [1] https://lore.kernel.org/lkml/20230606155754.245998-1-beata.michalska@arm.com/ Beata Michalska (1): arm64: Provide an AMU-based version of arch_freq_get_on_cpu Sumit Gupta (1): cpufreq: Wire-up arch-flavored freq info into cpufreq_verify_current_freq arch/arm64/kernel/topology.c | 39 ++++++++++++++++++++++++++++++++++++ drivers/cpufreq/cpufreq.c | 3 ++- 2 files changed, 41 insertions(+), 1 deletion(-)