arch/x86/events/Kconfig

Source file repositories/reference/linux-study-clean/arch/x86/events/Kconfig

File Facts

System: Linux kernel
Corpus path: arch/x86/events/Kconfig
Extension: [no extension]
Size: 1769 bytes
Lines: 56
Domain: Architecture Layer
Bucket: arch/x86
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.

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
menu "Performance monitoring"

config PERF_EVENTS_INTEL_UNCORE
	tristate "Intel uncore performance events"
	depends on PERF_EVENTS && CPU_SUP_INTEL && PCI
	default y
	help
	  Include support for Intel uncore performance events. These are
	  available on NehalemEX and more modern processors.

config PERF_EVENTS_INTEL_RAPL
	tristate "Intel/AMD rapl performance events"
	depends on PERF_EVENTS && (CPU_SUP_INTEL || CPU_SUP_AMD) && PCI
	default y
	help
	  Include support for Intel and AMD rapl performance events for power
	  monitoring on modern processors.

config PERF_EVENTS_INTEL_CSTATE
	tristate "Intel cstate performance events"
	depends on PERF_EVENTS && CPU_SUP_INTEL && PCI
	default y
	help
	  Include support for Intel cstate performance events for power
	  monitoring on modern processors.

config PERF_EVENTS_AMD_POWER
	depends on PERF_EVENTS && CPU_SUP_AMD
	tristate "AMD Processor Power Reporting Mechanism"
	help
	  Provide power reporting mechanism support for AMD processors.
	  Currently, it leverages X86_FEATURE_ACC_POWER
	  (CPUID Fn8000_0007_EDX[12]) interface to calculate the
	  average power consumption on Family 15h processors.

config PERF_EVENTS_AMD_UNCORE
	tristate "AMD Uncore performance events"
	depends on PERF_EVENTS && CPU_SUP_AMD
	default y
	help
	  Include support for AMD uncore performance events for use with
	  e.g., perf stat -e amd_l3/.../,amd_df/.../.

	  To compile this driver as a module, choose M here: the
	  module will be called 'amd-uncore'.

config PERF_EVENTS_AMD_BRS
	depends on PERF_EVENTS && CPU_SUP_AMD
	bool "AMD Zen3 Branch Sampling support"
	help
	  Enable AMD Zen3 branch sampling support (BRS) which samples up to
	  16 consecutive taken branches in registers.

endmenu

Annotation

Atlas domain: Architecture Layer / arch/x86.
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.