From 9c4a13a08a9b7afa4bc33f57675358f0195e302c Mon Sep 17 00:00:00 2001 From: Meng Li Date: Fri, 19 Jan 2024 17:04:59 +0800 Subject: ACPI: cpufreq: Add highest perf change notification Platform firmware sends notify 0x85 to inform the OS that the highest performance of a CPU has changed. This will be used by the AMD P-state driver to update the ranking of preferred cores and set the priority of cores accordingly. Tested-by: Oleksandr Natalenko Reviewed-by: Mario Limonciello Reviewed-by: Huang Rui Reviewed-by: Perry Yuan Signed-off-by: Meng Li Link: https://uefi.org/specs/ACPI/6.5/05_ACPI_Software_Programming_Model.html#processor-device-notification-values [ rjw: New subject, changelog edits ] Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index afda5f24d3dd..9bebeec24abb 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -263,6 +263,7 @@ static inline bool cpufreq_supports_freq_invariance(void) return false; } static inline void disable_cpufreq(void) { } +static inline void cpufreq_update_limits(unsigned int cpu) { } #endif #ifdef CONFIG_CPU_FREQ_STAT -- cgit v1.2.3