arch/xtensa/Kconfig v5.13-rc1

• XTENSA

Menu [Processor type and features]

• XTENSA_VARIANT_DC232B dc232b - Diamond 232L Standard Core Rev.B (LE)
• XTENSA_VARIANT_DC233C dc233c - Diamond 233L Standard Core Rev.C (LE)
• XTENSA_VARIANT_CUSTOM Custom Xtensa processor configuration
• XTENSA_VARIANT_CUSTOM_NAME Xtensa Processor Custom Core Variant Name
• XTENSA_VARIANT_MMU Core variant has a Full MMU (TLB, Pages, Protection, etc)
• XTENSA_VARIANT_HAVE_PERF_EVENTS Core variant has Performance Monitor Module
• XTENSA_FAKE_NMI Treat PMM IRQ as NMI
• XTENSA_UNALIGNED_USER Unaligned memory access in user space
• HAVE_SMP System Supports SMP (MX)
• SMP Enable Symmetric multi-processing support
• HOTPLUG_CPU Enable CPU hotplug support
• FAST_SYSCALL_XTENSA Enable fast atomic syscalls
• FAST_SYSCALL_SPILL_REGISTERS Enable spill registers syscall
• USER_ABI_CALL0 Userspace ABI
• USER_ABI_DEFAULT Default ABI only
• USER_ABI_CALL0_ONLY Call0 ABI only
• USER_ABI_CALL0_PROBE Support both windowed and call0 ABI by probing
• XTENSA_CALIBRATE_CCOUNT

Menu [Platform options]

• XTENSA_PLATFORM_ISS ISS
• XTENSA_PLATFORM_XT2000 XT2000
• XTENSA_PLATFORM_XTFPGA XTFPGA
• GENERIC_CALIBRATE_DELAY Auto calibration of the BogoMIPS value
• CMDLINE Initial kernel command string
• USE_OF Flattened Device Tree support
• PARSE_BOOTPARAM Parse bootparam block
• PARSE_BOOTPARAM Semihosting interface
• XTENSA_SIMCALL_ISS simcall
• XTENSA_SIMCALL_GDBIO GDBIO
• BLK_DEV_SIMDISK Host file-based simulated block device support
• BLK_DEV_SIMDISK_COUNT Number of host file-based simulated block devices
• SIMDISK0_FILENAME Host filename for the first simulated device
• SIMDISK1_FILENAME Host filename for the second simulated device
• XTFPGA_LCD Enable XTFPGA LCD driver
• XTFPGA_LCD_BASE_ADDR XTFPGA LCD base address
• XTFPGA_LCD_8BIT_ACCESS Use 8-bit access to XTFPGA LCD
• INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX Initialize Xtensa MMU inside the Linux kernel code
• XIP_KERNEL Kernel Execute-In-Place from ROM
• MEMMAP_CACHEATTR Cache attributes for the memory address space
• KSEG_PADDR Physical address of the KSEG mapping
• KERNEL_VIRTUAL_ADDRESS Kernel virtual address
• KERNEL_LOAD_ADDRESS Kernel load address
• KERNEL_LOAD_ADDRESS Relocatable vectors location
• XTENSA_VECTORS_IN_TEXT Merge relocatable vectors into kernel text
• XTENSA_VECTORS_SEPARATE Put relocatable vectors at fixed address
• VECTORS_ADDR Kernel vectors virtual address
• XIP_DATA_ADDR XIP kernel data virtual address
• DEFAULT_MEM_START PAGE_OFFSET/PHYS_OFFSET
• XTENSA_KSEG_MMU_V2 MMUv2: 128MB cached + 128MB uncached
• XTENSA_KSEG_256M 256MB cached + 256MB uncached
• XTENSA_KSEG_512M 512MB cached + 512MB uncached
• HIGHMEM High Memory Support
• FORCE_MAX_ZONEORDER Maximum zone order

Menu [Power management 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)