diff options
| author | Vincent Guittot <vincent.guittot@linaro.org> | 2023-12-11 11:48:55 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-12-23 15:52:36 +0100 |
| commit | 1f023007f5e782bda19ad9104830c404fd622c5d (patch) | |
| tree | 74dd934b49adae2c01a2fbca8247e0536db00307 /include | |
| parent | 5477fa249b56c59c3baa1b237bf083cffa64c84a (diff) | |
arm64/amu: Use capacity_ref_freq() to set AMU ratio
Use the new capacity_ref_freq() method to set the ratio that is used by AMU for
computing the arch_scale_freq_capacity().
This helps to keep everything aligned using the same reference for
computing CPUs capacity.
The default value of the ratio (stored in per_cpu(arch_max_freq_scale))
ensures that arch_scale_freq_capacity() returns max capacity until it is
set to its correct value with the cpu capacity and capacity_ref_freq().
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20231211104855.558096-8-vincent.guittot@linaro.org
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/arch_topology.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/arch_topology.h b/include/linux/arch_topology.h index 32c24ff4f2a8..a63d61ca55af 100644 --- a/include/linux/arch_topology.h +++ b/include/linux/arch_topology.h @@ -99,6 +99,7 @@ void update_siblings_masks(unsigned int cpu); void remove_cpu_topology(unsigned int cpuid); void reset_cpu_topology(void); int parse_acpi_topology(void); +void freq_inv_set_max_ratio(int cpu, u64 max_rate); #endif #endif /* _LINUX_ARCH_TOPOLOGY_H_ */ |