arch/xtensa/Kconfig

Source file repositories/reference/linux-study-clean/arch/xtensa/Kconfig

File Facts

System
Linux kernel
Corpus path
arch/xtensa/Kconfig
Extension
[no extension]
Size
25171 bytes
Lines
818
Domain
Architecture Layer
Bucket
arch/xtensa
Inferred role
Architecture Layer: build/configuration rule
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0
config XTENSA
	def_bool y
	select ARCH_32BIT_OFF_T
	select ARCH_HAS_CPU_CACHE_ALIASING
	select ARCH_HAS_BINFMT_FLAT if !MMU
	select ARCH_HAS_CURRENT_STACK_POINTER
	select ARCH_HAS_DEBUG_VM_PGTABLE
	select ARCH_HAS_DMA_PREP_COHERENT if MMU
	select ARCH_HAS_GCOV_PROFILE_ALL
	select ARCH_HAS_KCOV
	select ARCH_HAS_SYNC_DMA_FOR_CPU if MMU
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if MMU
	select ARCH_HAS_DMA_SET_UNCACHED if MMU
	select ARCH_HAS_STRNCPY_FROM_USER if !KASAN
	select ARCH_HAS_STRNLEN_USER
	select ARCH_NEED_CMPXCHG_1_EMU
	select ARCH_USE_MEMTEST
	select ARCH_USE_QUEUED_RWLOCKS
	select ARCH_USE_QUEUED_SPINLOCKS
	select ARCH_WANT_IPC_PARSE_VERSION
	select BUILDTIME_TABLE_SORT
	select GENERIC_BUILTIN_DTB
	select CLONE_BACKWARDS
	select COMMON_CLK
	select DMA_NONCOHERENT_MMAP if MMU
	select GENERIC_ATOMIC64
	select GENERIC_IRQ_SHOW
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_MULDI3
	select GENERIC_LIB_UCMPDI2
	select GENERIC_PCI_IOMAP
	select GENERIC_SCHED_CLOCK
	select GENERIC_IOREMAP if MMU
	select HAVE_ARCH_AUDITSYSCALL
	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
	select HAVE_ARCH_KASAN if MMU && !XIP_KERNEL
	select HAVE_ARCH_KCSAN
	select HAVE_ARCH_SECCOMP_FILTER
	select HAVE_ARCH_TRACEHOOK
	select HAVE_ASM_MODVERSIONS
	select HAVE_CONTEXT_TRACKING_USER
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DMA_CONTIGUOUS
	select HAVE_EXIT_THREAD
	select HAVE_FUNCTION_TRACER
	select HAVE_GCC_PLUGINS if GCC_VERSION >= 120000
	select HAVE_HW_BREAKPOINT if PERF_EVENTS
	select HAVE_IRQ_TIME_ACCOUNTING
	select HAVE_PAGE_SIZE_4KB
	select HAVE_PCI
	select HAVE_PERF_EVENTS
	select HAVE_STACKPROTECTOR
	select HAVE_SYSCALL_TRACEPOINTS
	select HAVE_VIRT_CPU_ACCOUNTING_GEN
	select IRQ_DOMAIN
	select LOCK_MM_AND_FIND_VMA
	select MODULES_USE_ELF_RELA
	select PERF_USE_VMALLOC
	select TRACE_IRQFLAGS_SUPPORT
	help
	  Xtensa processors are 32-bit RISC machines designed by Tensilica
	  primarily for embedded systems.  These processors are both
	  configurable and extensible.  The Linux port to the Xtensa
	  architecture supports all processor configurations and extensions,
	  with reasonable minimum requirements.  The Xtensa Linux project has
	  a home page at <http://www.linux-xtensa.org/>.

config GENERIC_HWEIGHT
	def_bool y

Annotation

Implementation Notes