Defined in 5 files as a config:

• arch/arm64/Kconfig, line 1043 (as a config)
• arch/ia64/Kconfig, line 318 (as a config)
• arch/powerpc/Kconfig, line 676 (as a config)
• arch/riscv/Kconfig, line 340 (as a config)
• arch/x86/Kconfig, line 2438 (as a config)

Referenced in 2 files:

• include/linux/topology.h, line 82
• mm/page_alloc.c, line 125