From 1f023007f5e782bda19ad9104830c404fd622c5d Mon Sep 17 00:00:00 2001 From: Vincent Guittot Date: Mon, 11 Dec 2023 11:48:55 +0100 Subject: 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 Signed-off-by: Ingo Molnar Acked-by: Sudeep Holla Acked-by: Will Deacon Link: https://lore.kernel.org/r/20231211104855.558096-8-vincent.guittot@linaro.org --- include/linux/arch_topology.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') 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_ */ -- cgit v1.2.3