arch/ia64/Kconfig v5.13-rc1

Menu [Processor type and features]

• IA64
• ITANIUM Itanium
• MCKINLEY Itanium 2
• IA64_PAGE_SIZE_4KB 4KB
• None Timer frequency
• IA64_SGI_UV SGI-UV support
• IA64_HP_SBA_IOMMU HP SBA IOMMU support
• IA64_CYCLONE Cyclone (EXA) Time Source support
• SMP Symmetric multi-processing support
• NR_CPUS Maximum number of CPUs (2-4096)
• HOTPLUG_CPU Support for hot-pluggable CPUs
• SCHED_SMT SMT scheduler support
• PERMIT_BSP_REMOVE Support removal of Bootstrap Processor
• FORCE_CPEI_RETARGET Force assumption that CPEI can be re-targeted
• NUMA NUMA support
• NODES_SHIFT Max num nodes shift(3-10)
• IA64_PALINFO /proc/pal support
• IA64_MC_ERR_INJECT MC error injection support
• IA64_ESI ESI (Extensible SAL Interface) support
• IA64_HP_AML_NFW Support ACPI AML calls to native firmware
• KEXEC kexec system call
• CRASH_DUMP kernel crash dumps

Menu [Firmware Drivers]

• ARM_SCMI_PROTOCOL ARM System Control and Management Interface (SCMI) Message Protocol
• ARM_SCMI_POWER_DOMAIN SCMI power domain driver
• ARM_SCPI_PROTOCOL ARM System Control and Power Interface (SCPI) Message Protocol
• ARM_SCPI_POWER_DOMAIN SCPI power domain driver
• ARM_SDE_INTERFACE ARM Software Delegated Exception Interface (SDEI)
• EDD BIOS Enhanced Disk Drive calls determine boot disk
• EDD_OFF Sets default behavior for EDD detection to off
• FIRMWARE_MEMMAP Add firmware-provided memory map to sysfs
• EFI_PCDP Console device selection via EFI PCDP or HCDP table
• DMIID Export DMI identification via sysfs to userspace
• DMI_SYSFS DMI table support in sysfs
• ISCSI_IBFT_FIND iSCSI Boot Firmware Table Attributes
• ISCSI_IBFT iSCSI Boot Firmware Table Attributes module
• RASPBERRYPI_FIRMWARE Raspberry Pi Firmware Driver
• FW_CFG_SYSFS QEMU fw_cfg device support in sysfs
• FW_CFG_SYSFS_CMDLINE QEMU fw_cfg device parameter parsing
• INTEL_STRATIX10_SERVICE Intel Stratix10 Service Layer
• INTEL_STRATIX10_RSU Intel Stratix10 Remote System Update
• QCOM_SCM_DOWNLOAD_MODE_DEFAULT Qualcomm download mode enabled by default
• TI_SCI_PROTOCOL TI System Control Interface (TISCI) Message Protocol
• TRUSTED_FOUNDATIONS Trusted Foundations secure monitor support
• TURRIS_MOX_RWTM Turris Mox rWTM secure firmware driver
• BCM47XX_NVRAM Broadcom NVRAM driver
• BCM47XX_SPROM Broadcom SPROM driver
• TEE_BNXT_FW Broadcom BNXT firmware manager
• GOOGLE_FIRMWARE Google Firmware Drivers
• GOOGLE_SMI SMI interface for Google platforms
• GOOGLE_COREBOOT_TABLE Coreboot Table Access
• GOOGLE_MEMCONSOLE_X86_LEGACY Firmware Memory Console - X86 Legacy support
• GOOGLE_FRAMEBUFFER_COREBOOT Coreboot Framebuffer
• GOOGLE_MEMCONSOLE_COREBOOT Firmware Memory Console
• GOOGLE_VPD Vital Product Data

Menu [EFI (Extensible Firmware Interface) Support]

• EFI_VARS EFI Variable Support via sysfs
• EFI_VARS_PSTORE Register efivars backend for pstore
• EFI_VARS_PSTORE_DEFAULT_DISABLE Disable using efivars as a pstore backend by default
• EFI_RUNTIME_MAP Export efi runtime maps to sysfs
• EFI_FAKE_MEMMAP Enable EFI fake memory map
• EFI_MAX_FAKE_MEM maximum allowable number of ranges in efi_fake_mem boot option
• EFI_SOFT_RESERVE Reserve EFI Specific Purpose Memory
• EFI_PARAMS_FROM_FDT
• EFI_ARMSTUB_DTB_LOADER Enable the DTB loader
• EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER Enable the command line initrd loader
• EFI_BOOTLOADER_CONTROL EFI Bootloader Control
• EFI_CAPSULE_LOADER EFI capsule loader
• EFI_CAPSULE_QUIRK_QUARK_CSH Add support for Quark capsules with non-standard headers
• EFI_TEST EFI Runtime Service Tests Support
• APPLE_PROPERTIES Apple Device Properties
• RESET_ATTACK_MITIGATION Reset memory attack mitigation
• EFI_RCI2_TABLE EFI Runtime Configuration Interface Table Version 2 Support
• EFI_DISABLE_PCI_DMA Clear Busmaster bit on PCI bridges during ExitBootServices()
• EFI_CUSTOM_SSDT_OVERLAYS Load custom ACPI SSDT overlay from an EFI variable
• IMX_DSP IMX DSP Protocol driver
• IMX_SCU IMX SCU Protocol driver
• IMX_SCU_PD IMX SCU Power Domain driver
• MESON_SM Amlogic Secure Monitor driver
• ARM_PSCI_CHECKER ARM PSCI checker
• HAVE_ARM_SMCCC
• HAVE_ARM_SMCCC_DISCOVERY
• ARM_SMCCC_SOC_ID SoC bus device for the ARM SMCCC SOC_ID

Menu [Tegra firmware driver]

• TEGRA_IVC Tegra IVC protocol
• TEGRA_BPMP Tegra BPMP driver

Menu [Zynq MPSoC Firmware Drivers]

• ZYNQMP_FIRMWARE Enable Xilinx Zynq MPSoC firmware interface
• ZYNQMP_FIRMWARE_DEBUG Enable Xilinx Zynq MPSoC firmware debug APIs

Menu [Power management and ACPI options]

• SUSPEND Suspend to RAM and standby
• SUSPEND_FREEZER Enable freezer for suspend to RAM/standby
• SUSPEND_SKIP_SYNC Skip kernel's sys_sync() on suspend to RAM/standby
• HIBERNATION Hibernation (aka 'suspend to disk')
• HIBERNATION_SNAPSHOT_DEV Userspace snapshot device
• PM_STD_PARTITION Default resume partition
• PM_SLEEP_SMP_NONZERO_CPU
• PM_AUTOSLEEP Opportunistic sleep
• PM_WAKELOCKS User space wakeup sources interface
• PM Device power management core functionality
• PM_DEBUG Power Management Debug Support
• PM_ADVANCED_DEBUG Extra PM attributes in sysfs for low-level debugging/testing
• PM_TEST_SUSPEND Test suspend/resume and wakealarm during bootup
• DPM_WATCHDOG Device suspend/resume watchdog
• PM_TRACE
• PM_TRACE_RTC Suspend/resume event tracing
• APM_EMULATION Advanced Power Management Emulation
• WQ_POWER_EFFICIENT_DEFAULT Enable workqueue power-efficient mode by default
• ENERGY_MODEL Energy Model for devices with DVFS (CPUs, GPUs, etc)
• ACPI ACPI (Advanced Configuration and Power Interface) Support
• ACPI_DEBUGGER AML debugger interface
• ACPI_DEBUGGER_USER Userspace debugger accessiblity
• ACPI_SPCR_TABLE ACPI Serial Port Console Redirection Support
• ACPI_FPDT ACPI Firmware Performance Data Table (FPDT) support
• ACPI_REV_OVERRIDE_POSSIBLE Allow supported ACPI revision to be overridden
• ACPI_EC_DEBUGFS EC read/write access through /sys/kernel/debug/ec
• ACPI_AC AC Adapter
• ACPI_BATTERY Battery
• ACPI_BUTTON Button
• ACPI_TINY_POWER_BUTTON Tiny Power Button Driver
• ACPI_TINY_POWER_BUTTON_SIGNAL Tiny Power Button Signal
• ACPI_VIDEO Video
• ACPI_FAN Fan
• ACPI_TAD ACPI Time and Alarm (TAD) Device Support
• ACPI_DOCK Dock
• ACPI_CPPC_LIB
• ACPI_PROCESSOR Processor
• ACPI_IPMI IPMI
• ACPI_PROCESSOR_AGGREGATOR Processor Aggregator
• ACPI_THERMAL Thermal Zone
• ACPI_CUSTOM_DSDT_FILE Custom DSDT Table file to include
• ACPI_TABLE_UPGRADE Allow upgrading ACPI tables via initrd
• ACPI_TABLE_OVERRIDE_VIA_BUILTIN_INITRD Override ACPI tables from built-in initrd
• ACPI_DEBUG Debug Statements
• ACPI_PCI_SLOT PCI slot detection driver
• ACPI_CONTAINER Container and Module Devices
• ACPI_HOTPLUG_MEMORY Memory Hotplug
• ACPI_SBS Smart Battery System
• ACPI_HED Hardware Error Device
• ACPI_CUSTOM_METHOD Allow ACPI methods to be inserted/replaced at run time
• ACPI_BGRT Boottime Graphics Resource Table support
• ACPI_REDUCED_HARDWARE_ONLY Hardware-reduced ACPI support only
• ACPI_NFIT ACPI NVDIMM Firmware Interface Table (NFIT)
• NFIT_SECURITY_DEBUG Enable debug for NVDIMM security commands
• ACPI_HMAT ACPI Heterogeneous Memory Attribute Table Support
• ACPI_APEI ACPI Platform Error Interface (APEI)
• ACPI_APEI_GHES APEI Generic Hardware Error Source
• ACPI_APEI_PCIEAER APEI PCIe AER logging/recovering support
• ACPI_APEI_MEMORY_FAILURE APEI memory error recovering support
• ACPI_APEI_EINJ APEI Error INJection (EINJ)
• ACPI_APEI_ERST_DEBUG APEI Error Record Serialization Table (ERST) Debug Support
• ACPI_DPTF Intel DPTF (Dynamic Platform and Thermal Framework) Support
• DPTF_POWER Platform Power DPTF Participant
• DPTF_PCH_FIVR PCH FIVR DPTF Participant
• ACPI_EXTLOG Extended Error Log support
• ACPI_CONFIGFS ACPI configfs support
• PMIC_OPREGION PMIC (Power Management Integrated Circuit) operation region support
• BYTCRC_PMIC_OPREGION ACPI operation region support for Bay Trail Crystal Cove PMIC
• CHTCRC_PMIC_OPREGION ACPI operation region support for Cherry Trail Crystal Cove PMIC
• XPOWER_PMIC_OPREGION ACPI operation region support for XPower AXP288 PMIC
• BXT_WC_PMIC_OPREGION ACPI operation region support for BXT WhiskeyCove PMIC
• CHT_WC_PMIC_OPREGION ACPI operation region support for CHT Whiskey Cove PMIC
• CHT_DC_TI_PMIC_OPREGION ACPI operation region support for Dollar Cove TI PMIC
• TPS68470_PMIC_OPREGION ACPI operation region support for TPS68470 PMIC
• X86_PM_TIMER Power Management Timer Support

Menu [CPU Frequency scaling]

Menu [CPU Frequency scaling]

• CPU_FREQ CPU Frequency scaling
• CPU_FREQ_STAT CPU frequency transition statistics
• CPU_FREQ_STAT Default CPUFreq governor
• CPU_FREQ_DEFAULT_GOV_PERFORMANCE performance
• CPU_FREQ_DEFAULT_GOV_POWERSAVE powersave
• CPU_FREQ_DEFAULT_GOV_USERSPACE userspace
• CPU_FREQ_DEFAULT_GOV_ONDEMAND ondemand
• CPU_FREQ_DEFAULT_GOV_CONSERVATIVE conservative
• CPU_FREQ_DEFAULT_GOV_SCHEDUTIL schedutil
• CPU_FREQ_GOV_PERFORMANCE 'performance' governor
• CPU_FREQ_GOV_POWERSAVE 'powersave' governor
• CPU_FREQ_GOV_USERSPACE 'userspace' governor for userspace frequency scaling
• CPU_FREQ_GOV_ONDEMAND 'ondemand' cpufreq policy governor
• CPU_FREQ_GOV_CONSERVATIVE 'conservative' cpufreq governor
• CPU_FREQ_GOV_SCHEDUTIL 'schedutil' cpufreq policy governor
• CPUFREQ_DT Generic DT based cpufreq driver
• CPUFREQ_DT_PLATDEV
• X86_INTEL_PSTATE Intel P state control
• X86_PCC_CPUFREQ Processor Clocking Control interface driver
• X86_ACPI_CPUFREQ ACPI Processor P-States driver
• X86_ACPI_CPUFREQ_CPB Legacy cpb sysfs knob support for AMD CPUs
• ELAN_CPUFREQ AMD Elan SC400 and SC410
• SC520_CPUFREQ AMD Elan SC520
• X86_POWERNOW_K6 AMD Mobile K6-2/K6-3 PowerNow!
• X86_POWERNOW_K7 AMD Mobile Athlon/Duron PowerNow!
• X86_POWERNOW_K8 AMD Opteron/Athlon64 PowerNow!
• X86_AMD_FREQ_SENSITIVITY AMD frequency sensitivity feedback powersave bias
• X86_GX_SUSPMOD Cyrix MediaGX/NatSemi Geode Suspend Modulation
• X86_SPEEDSTEP_CENTRINO Intel Enhanced SpeedStep (deprecated)
• X86_SPEEDSTEP_CENTRINO_TABLE Built-in tables for Banias CPUs
• X86_SPEEDSTEP_ICH Intel Speedstep on ICH-M chipsets (ioport interface)
• X86_SPEEDSTEP_SMI Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)
• X86_P4_CLOCKMOD Intel Pentium 4 clock modulation
• X86_CPUFREQ_NFORCE2 nVidia nForce2 FSB changing
• X86_LONGRUN Transmeta LongRun
• X86_LONGHAUL VIA Cyrix III Longhaul
• X86_E_POWERSAVER VIA C7 Enhanced PowerSaver (DANGEROUS)
• X86_SPEEDSTEP_RELAXED_CAP_CHECK Relaxed speedstep capability checks
• ACPI_CPPC_CPUFREQ CPUFreq driver based on the ACPI CPPC spec
• ACPI_CPPC_CPUFREQ_FIE Frequency Invariance support for CPPC cpufreq driver
• ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM Allwinner nvmem based SUN50I CPUFreq driver
• ARM_ARMADA_37XX_CPUFREQ Armada 37xx CPUFreq support
• ARM_ARMADA_8K_CPUFREQ Armada 8K CPUFreq driver
• ARM_SCPI_CPUFREQ SCPI based CPUfreq driver
• ARM_VEXPRESS_SPC_CPUFREQ Versatile Express SPC based CPUfreq driver
• ARM_BRCMSTB_AVS_CPUFREQ Broadcom STB AVS CPUfreq driver
• ARM_HIGHBANK_CPUFREQ Calxeda Highbank-based
• ARM_IMX6Q_CPUFREQ Freescale i.MX6 cpufreq support
• ARM_IMX_CPUFREQ_DT Freescale i.MX8M cpufreq support
• ARM_KIRKWOOD_CPUFREQ
• ARM_MEDIATEK_CPUFREQ CPU Frequency scaling support for MediaTek SoCs
• ARM_QCOM_CPUFREQ_NVMEM Qualcomm nvmem based CPUFreq
• ARM_QCOM_CPUFREQ_HW QCOM CPUFreq HW driver
• ARM_RASPBERRYPI_CPUFREQ Raspberry Pi cpufreq support
• ARM_S3C_CPUFREQ
• ARM_S3C24XX_CPUFREQ CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)
• ARM_S3C24XX_CPUFREQ_DEBUG Debug CPUfreq Samsung driver core
• ARM_S3C24XX_CPUFREQ_IODEBUG Debug CPUfreq Samsung driver IO timing
• ARM_S3C24XX_CPUFREQ_DEBUGFS Export debugfs for CPUFreq
• ARM_S3C2410_CPUFREQ
• ARM_S3C2412_CPUFREQ
• ARM_S3C2416_CPUFREQ S3C2416 CPU Frequency scaling support
• ARM_S3C2416_CPUFREQ_VCORESCALE Allow voltage scaling for S3C2416 arm core
• ARM_S3C2440_CPUFREQ S3C2440/S3C2442 CPU Frequency scaling support
• ARM_S3C64XX_CPUFREQ Samsung S3C64XX
• ARM_S5PV210_CPUFREQ Samsung S5PV210 and S5PC110
• ARM_SCMI_CPUFREQ SCMI based CPUfreq driver
• ARM_SPEAR_CPUFREQ SPEAr CPUFreq support
• ARM_STI_CPUFREQ STi CPUFreq support
• ARM_TEGRA20_CPUFREQ Tegra20/30 CPUFreq support
• ARM_TEGRA124_CPUFREQ Tegra124 CPUFreq support
• ARM_TEGRA186_CPUFREQ Tegra186 CPUFreq support
• ARM_TEGRA194_CPUFREQ Tegra194 CPUFreq support
• ARM_TI_CPUFREQ Texas Instruments CPUFreq support
• ARM_PXA2xx_CPUFREQ Intel PXA2xx CPUfreq driver
• CPU_FREQ_CBE CBE frequency scaling
• CPU_FREQ_CBE_PMI CBE frequency scaling using PMI interface
• CPU_FREQ_MAPLE Support for Maple 970FX Evaluation Board
• CPU_FREQ_PMAC Support for Apple PowerBooks
• CPU_FREQ_PMAC64 Support for some Apple G5s
• PPC_PASEMI_CPUFREQ Support for PA Semi PWRficient
• POWERNV_CPUFREQ CPU frequency scaling for IBM POWERNV platform
• IA64_ACPI_CPUFREQ ACPI Processor P-States driver
• BMIPS_CPUFREQ BMIPS CPUfreq Driver
• LOONGSON2_CPUFREQ Loongson2 CPUFreq Driver
• LOONGSON1_CPUFREQ Loongson1 CPUFreq Driver
• SPARC_US3_CPUFREQ UltraSPARC-III CPU Frequency driver
• SPARC_US2E_CPUFREQ UltraSPARC-IIe CPU Frequency driver
• SH_CPU_FREQ SuperH CPU Frequency driver
• QORIQ_CPUFREQ CPU frequency scaling driver for Freescale QorIQ SoCs
• MSPEC Memory special operations driver