arch/powerpc/include/asm/timex.h

Source file repositories/reference/linux-study-clean/arch/powerpc/include/asm/timex.h

File Facts

System
Linux kernel
Corpus path
arch/powerpc/include/asm/timex.h
Extension
.h
Size
463 bytes
Lines
26
Domain
Architecture Layer
Bucket
arch/powerpc
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

#ifndef _ASM_POWERPC_TIMEX_H
#define _ASM_POWERPC_TIMEX_H

#ifdef __KERNEL__

/*
 * PowerPC architecture timex specifications
 */

#include <asm/cputable.h>
#include <asm/vdso/timebase.h>

#define CLOCK_TICK_RATE	1024000 /* Underlying HZ */

typedef unsigned long cycles_t;

static inline cycles_t get_cycles(void)
{
	return mftb();
}
#define get_cycles get_cycles

#endif	/* __KERNEL__ */
#endif	/* _ASM_POWERPC_TIMEX_H */

Annotation

Implementation Notes