Differential D5183 Diff 13205 head/sys/mips/mips/tick.c

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head/sys/mips/mips/tick.c

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#include <sys/timeet.h>		#include <sys/timeet.h>
#include <sys/timetc.h>		#include <sys/timetc.h>

#include <machine/hwfunc.h>		#include <machine/hwfunc.h>
#include <machine/clock.h>		#include <machine/clock.h>
#include <machine/locore.h>		#include <machine/locore.h>
#include <machine/md_var.h>		#include <machine/md_var.h>

		#ifdef MIPS_INTRNG
		#include <machine/intr.h>
		#endif

uint64_t counter_freq;		uint64_t counter_freq;

struct timecounter *platform_timecounter;		struct timecounter *platform_timecounter;

static DPCPU_DEFINE(uint32_t, cycles_per_tick);		static DPCPU_DEFINE(uint32_t, cycles_per_tick);
static uint32_t cycles_per_usec;		static uint32_t cycles_per_usec;

static DPCPU_DEFINE(volatile uint32_t, counter_upper);		static DPCPU_DEFINE(volatile uint32_t, counter_upper);
▲ Show 20 Lines • Show All 257 Lines • ▼ Show 20 Lines	clock_identify(driver_t * drv, device_t parent)

BUS_ADD_CHILD(parent, 0, "clock", 0);		BUS_ADD_CHILD(parent, 0, "clock", 0);
}		}

static int		static int
clock_attach(device_t dev)		clock_attach(device_t dev)
{		{
struct clock_softc *sc;		struct clock_softc *sc;
		#ifndef MIPS_INTRNG
int error;		int error;
		#endif

if (device_get_unit(dev) != 0)		if (device_get_unit(dev) != 0)
panic("can't attach more clocks");		panic("can't attach more clocks");

softc = sc = device_get_softc(dev);		softc = sc = device_get_softc(dev);
		#ifdef MIPS_INTRNG
		cpu_establish_hardintr("clock", clock_intr, NULL, sc, 5, INTR_TYPE_CLK,
		NULL);
		#else
sc->intr_rid = 0;		sc->intr_rid = 0;
sc->intr_res = bus_alloc_resource(dev,		sc->intr_res = bus_alloc_resource(dev,
SYS_RES_IRQ, &sc->intr_rid, 5, 5, 1, RF_ACTIVE);		SYS_RES_IRQ, &sc->intr_rid, 5, 5, 1, RF_ACTIVE);
if (sc->intr_res == NULL) {		if (sc->intr_res == NULL) {
device_printf(dev, "failed to allocate irq\n");		device_printf(dev, "failed to allocate irq\n");
return (ENXIO);		return (ENXIO);
}		}
error = bus_setup_intr(dev, sc->intr_res, INTR_TYPE_CLK,		error = bus_setup_intr(dev, sc->intr_res, INTR_TYPE_CLK,
clock_intr, NULL, sc, &sc->intr_handler);		clock_intr, NULL, sc, &sc->intr_handler);
if (error != 0) {		if (error != 0) {
device_printf(dev, "bus_setup_intr returned %d\n", error);		device_printf(dev, "bus_setup_intr returned %d\n", error);
return (error);		return (error);
}		}
		#endif

sc->tc.tc_get_timecount = counter_get_timecount;		sc->tc.tc_get_timecount = counter_get_timecount;
sc->tc.tc_counter_mask = 0xffffffff;		sc->tc.tc_counter_mask = 0xffffffff;
sc->tc.tc_frequency = counter_freq;		sc->tc.tc_frequency = counter_freq;
sc->tc.tc_name = "MIPS32";		sc->tc.tc_name = "MIPS32";
sc->tc.tc_quality = 800;		sc->tc.tc_quality = 800;
sc->tc.tc_priv = sc;		sc->tc.tc_priv = sc;
tc_init(&sc->tc);		tc_init(&sc->tc);
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