diff options
Diffstat (limited to 'drivers/cpufreq/Kconfig')
| -rw-r--r-- | drivers/cpufreq/Kconfig | 87 |
1 files changed, 66 insertions, 21 deletions
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig index 2a84fc63371e..78702a08364f 100644 --- a/drivers/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig @@ -3,7 +3,6 @@ menu "CPU Frequency scaling" config CPU_FREQ bool "CPU Frequency scaling" - select SRCU help CPU Frequency scaling allows you to change the clock speed of CPUs on the fly. This is a nice method to save power, because @@ -37,9 +36,9 @@ config CPU_FREQ_STAT choice prompt "Default CPUFreq governor" - default CPU_FREQ_DEFAULT_GOV_USERSPACE if ARM_SA1100_CPUFREQ || ARM_SA1110_CPUFREQ + default CPU_FREQ_DEFAULT_GOV_USERSPACE if ARM_SA1110_CPUFREQ default CPU_FREQ_DEFAULT_GOV_SCHEDUTIL if ARM64 || ARM - default CPU_FREQ_DEFAULT_GOV_SCHEDUTIL if X86_INTEL_PSTATE && SMP + default CPU_FREQ_DEFAULT_GOV_SCHEDUTIL if (X86_INTEL_PSTATE || X86_AMD_PSTATE) && SMP default CPU_FREQ_DEFAULT_GOV_PERFORMANCE help This option sets which CPUFreq governor shall be loaded at @@ -218,8 +217,35 @@ config CPUFREQ_DT If in doubt, say N. +config CPUFREQ_DT_RUST + tristate "Rust based Generic DT based cpufreq driver" + depends on HAVE_CLK && OF && RUST + select CPUFREQ_DT_PLATDEV + select PM_OPP + help + This adds a Rust based generic DT based cpufreq driver for frequency + management. It supports both uniprocessor (UP) and symmetric + multiprocessor (SMP) systems. + + If in doubt, say N. + +config CPUFREQ_VIRT + tristate "Virtual cpufreq driver" + depends on GENERIC_ARCH_TOPOLOGY + help + This adds a virtualized cpufreq driver for guest kernels that + read/writes to a MMIO region for a virtualized cpufreq device to + communicate with the host. It sends performance requests to the host + which gets used as a hint to schedule vCPU threads and select CPU + frequency. If a VM does not support a virtualized FIE such as AMUs, + it updates the frequency scaling factor by polling host CPU frequency + to enable accurate Per-Entity Load Tracking for tasks running in the guest. + + If in doubt, say N. + config CPUFREQ_DT_PLATDEV - bool + bool "Generic DT based cpufreq platdev driver" + depends on OF help This adds a generic DT based cpufreq platdev driver for frequency management. This creates a 'cpufreq-dt' platform device, on the @@ -231,25 +257,12 @@ if X86 source "drivers/cpufreq/Kconfig.x86" endif -if ARM || ARM64 source "drivers/cpufreq/Kconfig.arm" -endif if PPC32 || PPC64 source "drivers/cpufreq/Kconfig.powerpc" endif -if IA64 -config IA64_ACPI_CPUFREQ - tristate "ACPI Processor P-States driver" - depends on ACPI_PROCESSOR - help - This driver adds a CPUFreq driver which utilizes the ACPI - Processor Performance States. - - If in doubt, say N. -endif - if MIPS config BMIPS_CPUFREQ tristate "BMIPS CPUfreq Driver" @@ -271,14 +284,17 @@ config LOONGSON2_CPUFREQ Loongson2F and its successors support this feature. If in doubt, say N. +endif -config LOONGSON1_CPUFREQ - tristate "Loongson1 CPUFreq Driver" - depends on LOONGSON1_LS1B +if LOONGARCH +config LOONGSON3_CPUFREQ + tristate "Loongson3 CPUFreq Driver" help - This option adds a CPUFreq driver for loongson1 processors which + This option adds a CPUFreq driver for Loongson processors which support software configurable cpu frequency. + Loongson-3 family processors support this feature. + If in doubt, say N. endif @@ -321,5 +337,34 @@ config QORIQ_CPUFREQ This adds the CPUFreq driver support for Freescale QorIQ SoCs which are capable of changing the CPU's frequency dynamically. +config ACPI_CPPC_CPUFREQ + tristate "CPUFreq driver based on the ACPI CPPC spec" + depends on ACPI_PROCESSOR + depends on ARM || ARM64 || RISCV + select ACPI_CPPC_LIB + help + This adds a CPUFreq driver which uses CPPC methods + as described in the ACPIv5.1 spec. CPPC stands for + Collaborative Processor Performance Controls. It + is based on an abstract continuous scale of CPU + performance values which allows the remote power + processor to flexibly optimize for power and + performance. CPPC relies on power management firmware + support for its operation. + + If in doubt, say N. + +config ACPI_CPPC_CPUFREQ_FIE + bool "Frequency Invariance support for CPPC cpufreq driver" + depends on ACPI_CPPC_CPUFREQ && GENERIC_ARCH_TOPOLOGY + depends on ARM || ARM64 || RISCV + default y + help + This extends frequency invariance support in the CPPC cpufreq driver, + by using CPPC delivered and reference performance counters. + + If in doubt, say N. + endif + endmenu |