arch/arm/Kconfig.platforms

Source file repositories/reference/linux-study-clean/arch/arm/Kconfig.platforms

File Facts

System: Linux kernel
Corpus path: arch/arm/Kconfig.platforms
Extension: .platforms
Size: 5130 bytes
Lines: 205
Domain: Architecture Layer
Bucket: arch/arm
Inferred role: Architecture Layer: arch/arm
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.

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

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only

menu "Platform selection"
	depends on MMU

comment "CPU Core family selection"

config ARCH_MULTI_V4
	bool "ARMv4 based platforms (FA526, StrongARM)"
	depends on !ARCH_MULTI_V6_V7
	select ARCH_MULTI_V4_V5
	select CPU_FA526 if !(CPU_SA110 || CPU_SA1100)

config ARCH_MULTI_V4T
	bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
	depends on !ARCH_MULTI_V6_V7
	select ARCH_MULTI_V4_V5
	select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
		CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
		CPU_ARM925T || CPU_ARM940T)

config ARCH_MULTI_V5
	bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
	depends on !ARCH_MULTI_V6_V7
	select ARCH_MULTI_V4_V5
	select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
		CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
		CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)

config ARCH_MULTI_V4_V5
	bool

config ARCH_MULTI_V6
	bool "ARMv6 based platforms (ARM11)"
	select ARCH_MULTI_V6_V7
	select CPU_V6K

config ARCH_MULTI_V7
	bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
	default y
	select ARCH_MULTI_V6_V7
	select CPU_V7
	select HAVE_SMP

config ARCH_MULTI_V6_V7
	bool
	select MIGHT_HAVE_CACHE_L2X0

config ARCH_MULTI_CPU_AUTO
	def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
	select ARCH_MULTI_V5

endmenu

config ARCH_VIRT
	bool "Dummy Virtual Machine"
	depends on ARCH_MULTI_V7
	select ARM_AMBA
	select ARM_GIC
	select ARM_GIC_V2M if PCI
	select ARM_GIC_V3
	select ARM_GIC_V3_ITS if PCI
	select ARM_PSCI
	select HAVE_ARM_ARCH_TIMER

config ARCH_AIROHA
	bool "Airoha SoC Support"
	depends on ARCH_MULTI_V7
	select ARM_AMBA
	select ARM_GIC

Annotation

Atlas domain: Architecture Layer / arch/arm.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.