Example #1
0
static void yield_shared_processor(void)
{
	unsigned long tb;
	unsigned long yieldTime;

	HvCall_setEnabledInterrupts(HvCall_MaskIPI |
				    HvCall_MaskLpEvent |
				    HvCall_MaskLpProd |
				    HvCall_MaskTimeout);

	tb = get_tb();
	/* Compute future tb value when yield should expire */
	HvCall_yieldProcessor(HvCall_YieldTimed, tb+tb_ticks_per_jiffy);

	yieldTime = get_tb() - tb;
	if (yieldTime > maxYieldTime)
		maxYieldTime = yieldTime;

	if (yieldTime < minYieldTime)
		minYieldTime = yieldTime;
	
	/*
	 * The decrementer stops during the yield.  Force a fake decrementer
	 * here and let the timer_interrupt code sort out the actual time.
	 */
	get_paca()->lppaca.xIntDword.xFields.xDecrInt = 1;
	process_iSeries_events();
}
static void yield_shared_processor(void)
{
	unsigned long tb;

	HvCall_setEnabledInterrupts(HvCall_MaskIPI |
				    HvCall_MaskLpEvent |
				    HvCall_MaskLpProd |
				    HvCall_MaskTimeout);

	tb = get_tb();
	/* Compute future tb value when yield should expire */
	HvCall_yieldProcessor(HvCall_YieldTimed, tb+tb_ticks_per_jiffy);

	/*
	 * The decrementer stops during the yield.  Force a fake decrementer
	 * here and let the timer_interrupt code sort out the actual time.
	 */
	get_lppaca()->int_dword.fields.decr_int = 1;
	ppc64_runlatch_on();
	process_iSeries_events();
}