arch/x86/kernel/cpu/powerflags.c

Source file repositories/reference/linux-study-clean/arch/x86/kernel/cpu/powerflags.c

File Facts

System
Linux kernel
Corpus path
arch/x86/kernel/cpu/powerflags.c
Extension
.c
Size
745 bytes
Lines
25
Domain
Architecture Layer
Bucket
arch/x86
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

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
/*
 * Strings for the various x86 power flags
 *
 * This file must not contain any executable code.
 */

#include <asm/cpufeature.h>

const char *const x86_power_flags[32] = {
	"ts",	/* temperature sensor */
	"fid",  /* frequency id control */
	"vid",  /* voltage id control */
	"ttp",  /* thermal trip */
	"tm",	/* hardware thermal control */
	"stc",	/* software thermal control */
	"100mhzsteps", /* 100 MHz multiplier control */
	"hwpstate", /* hardware P-state control */
	"",	/* tsc invariant mapped to constant_tsc */
	"cpb",  /* core performance boost */
	"eff_freq_ro", /* Readonly aperf/mperf */
	"proc_feedback", /* processor feedback interface */
	"acc_power", /* accumulated power mechanism */
};

Annotation

Implementation Notes