Differential D36610 Diff 110757 sys/powerpc/powerpc/clock.c

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sys/powerpc/powerpc/clock.c

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	#include <machine/intr_machdep.h>			#include <machine/intr_machdep.h>
	#endif			#endif
	#include <machine/md_var.h>			#include <machine/md_var.h>
	#include <machine/smp.h>			#include <machine/smp.h>

	/*			/*
	* Initially we assume a processor with a bus frequency of 12.5 MHz.			* Initially we assume a processor with a bus frequency of 12.5 MHz.
	*/			*/
	static int initialized = 0;			static int initialized = 0;
	static uint64_t ps_per_tick = 80000;			static uint64_t ps_per_tick = 80000;
	static u_long ticks_per_sec = 12500000;			static u_long ticks_per_sec = 12500000;
	static u_long *decr_counts[MAXCPU];			static struct intr_event *decr_counts[MAXCPU];

	static int decr_et_start(struct eventtimer *et,			static int decr_et_start(struct eventtimer *et,
	sbintime_t first, sbintime_t period);			sbintime_t first, sbintime_t period);
	static int decr_et_stop(struct eventtimer *et);			static int decr_et_stop(struct eventtimer *et);
	static timecounter_get_t decr_get_timecount;			static timecounter_get_t decr_get_timecount;
	static uint32_t decr_vdso_timehands(struct vdso_timehands *vdso_th,			static uint32_t decr_vdso_timehands(struct vdso_timehands *vdso_th,
	struct timecounter *tc);			struct timecounter *tc);
	#ifdef COMPAT_FREEBSD32			#ifdef COMPAT_FREEBSD32
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	{			{
	struct decr_state *s = DPCPU_PTR(decr_state);			struct decr_state *s = DPCPU_PTR(decr_state);
	int nticks = 0;			int nticks = 0;
	int32_t val;			int32_t val;

	if (!initialized)			if (!initialized)
	return;			return;

	(*decr_counts[curcpu])++;			decr_counts[curcpu]->ie_intrcnt++;

	#ifdef BOOKE			#ifdef BOOKE
	/*			/*
	* Interrupt handler must reset DIS to avoid getting another			* Interrupt handler must reset DIS to avoid getting another
	* interrupt once EE is enabled.			* interrupt once EE is enabled.
	*/			*/
	mtspr(SPR_TSR, TSR_DIS);			mtspr(SPR_TSR, TSR_DIS);
	#endif			#endif
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	/*			/*
	* BSP early initialization.			* BSP early initialization.
	*/			*/
	void			void
	decr_init(void)			decr_init(void)
	{			{
	struct cpuref cpu;			struct cpuref cpu;
	char buf[32];			int error;

	/*			/*
	* Check the BSP's timebase frequency. Sometimes we can't find the BSP,			* Check the BSP's timebase frequency. Sometimes we can't find the BSP,
	* so fall back to the first CPU in this case.			* so fall back to the first CPU in this case.
	*/			*/
	if (platform_smp_get_bsp(&cpu) != 0)			if (platform_smp_get_bsp(&cpu) != 0)
	platform_smp_first_cpu(&cpu);			platform_smp_first_cpu(&cpu);
	ticks_per_sec = platform_timebase_freq(&cpu);			ticks_per_sec = platform_timebase_freq(&cpu);
	ps_per_tick = 1000000000000 / ticks_per_sec;			ps_per_tick = 1000000000000 / ticks_per_sec;

	set_cputicker(mftb, ticks_per_sec, false);			set_cputicker(mftb, ticks_per_sec, false);
	snprintf(buf, sizeof(buf), "cpu%d:decrementer", curcpu);			error = intr_event_create(decr_counts + curcpu, NULL, 0, NULL, NULL,
	intrcnt_add(buf, &decr_counts[curcpu]);			NULL, NULL, "cpu%d:decrementer", curcpu);
				if (error != 0)
				panic("%s(): intr_event_create() failed, return=%d", __func__,
				error);
	decr_et_stop(NULL);			decr_et_stop(NULL);
	initialized = 1;			initialized = 1;
	}			}

	#ifdef SMP			#ifdef SMP
	/*			/*
	* AP early initialization.			* AP early initialization.
	*/			*/
	void			void
	decr_ap_init(void)			decr_ap_init(void)
	{			{
	char buf[32];			char buf[32];

	snprintf(buf, sizeof(buf), "cpu%d:decrementer", curcpu);			snprintf(buf, sizeof(buf), "cpu%d:decrementer", curcpu);
	intrcnt_add(buf, &decr_counts[curcpu]);			intrcnt_add(buf, &decr_counts[curcpu]);
	decr_et_stop(NULL);			decr_et_stop(NULL);
				ehem_freebsd_m5p.comAuthorUnsubmitted Not Done Inline Actions This has me worried, why is this array being initialized twice? This uses the safer approach, but I'm unable to test this so someone else needs to verify. ehem_freebsd_m5p.com: This has me worried, why is this array being initialized twice? This uses the safer…
	}			}
	#endif			#endif

	/*			/*
	* Final initialization.			* Final initialization.
	*/			*/
	void			void
	decr_tc_init(void)			decr_tc_init(void)
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