[lttv.git] / trunk / obsolete / ltt-usertrace / ltt / timex-ppc.h

#ifndef __TIMEX_PPC_H
#define __TIMEX_PPC_H

#ifdef __cplusplus
extern "C" {
#endif

#define CPU_FTR_601			0x00000100

#define CLOCK_TICK_RATE	1193180 /* Underlying HZ */

typedef uint64_t cycles_t;

/* On ppc64 this gets us the whole timebase; on ppc32 just the lower half */
static inline unsigned long get_tbl(void)
{
	unsigned long tbl;

//#if defined(CONFIG_403GCX)
//	asm volatile("mfspr %0, 0x3dd" : "=r" (tbl));
//#else
	asm volatile("mftb %0" : "=r" (tbl));
//#endif
	return tbl;
}

static inline unsigned int get_tbu(void)
{
	unsigned int tbu;

//#if defined(CONFIG_403GCX)
//	asm volatile("mfspr %0, 0x3dc" : "=r" (tbu));
//#else
	asm volatile("mftbu %0" : "=r" (tbu));
//#endif
	return tbu;
}

static inline uint64_t get_tb(void)
{
	unsigned int tbhi, tblo, tbhi2;

	do {
		tbhi = get_tbu();
		tblo = get_tbl();
		tbhi2 = get_tbu();
	} while (tbhi != tbhi2);

	return ((uint64_t)tbhi << 32) | tblo;
}

static inline cycles_t get_cycles(void)
{
	return get_tb();
}

#ifdef __cplusplus
} /* end of extern "C" */
#endif

#endif //__TIMEX_PPC_H
Commit	Line	Data
3a4541a5	1	#ifndef __TIMEX_PPC_H
	2	#define __TIMEX_PPC_H
	3
895ad115	4	#ifdef __cplusplus
	5	extern "C" {
	6	#endif
	7
3a4541a5	8	#define CPU_FTR_601 0x00000100
	9
	10	#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
	11
	12	typedef uint64_t cycles_t;
	13
	14	/* On ppc64 this gets us the whole timebase; on ppc32 just the lower half */
	15	static inline unsigned long get_tbl(void)
	16	{
	17	unsigned long tbl;
	18
	19	//#if defined(CONFIG_403GCX)
	20	// asm volatile("mfspr %0, 0x3dd" : "=r" (tbl));
	21	//#else
	22	asm volatile("mftb %0" : "=r" (tbl));
	23	//#endif
	24	return tbl;
	25	}
	26
	27	static inline unsigned int get_tbu(void)
	28	{
	29	unsigned int tbu;
	30
	31	//#if defined(CONFIG_403GCX)
	32	// asm volatile("mfspr %0, 0x3dc" : "=r" (tbu));
	33	//#else
	34	asm volatile("mftbu %0" : "=r" (tbu));
	35	//#endif
	36	return tbu;
	37	}
	38
	39	static inline uint64_t get_tb(void)
	40	{
	41	unsigned int tbhi, tblo, tbhi2;
	42
	43	do {
	44	tbhi = get_tbu();
	45	tblo = get_tbl();
	46	tbhi2 = get_tbu();
	47	} while (tbhi != tbhi2);
	48
	49	return ((uint64_t)tbhi << 32) \| tblo;
	50	}
	51
	52	static inline cycles_t get_cycles(void)
	53	{
	54	return get_tb();
	55	}
	56
895ad115	57	#ifdef __cplusplus
	58	} /* end of extern "C" */
	59	#endif
	60
3a4541a5	61	#endif //__TIMEX_PPC_H