diff options
author | mav <mav@FreeBSD.org> | 2010-09-11 04:45:51 +0000 |
---|---|---|
committer | mav <mav@FreeBSD.org> | 2010-09-11 04:45:51 +0000 |
commit | f9956f69fbc5c984c7e716e4dbac5198659aa5e0 (patch) | |
tree | d0d4b6ea03b96815c75e6f6b95e46ddff8dbaedf | |
parent | 5120adc2800eb3369aa1263ee45dfc80738d4433 (diff) | |
download | FreeBSD-src-f9956f69fbc5c984c7e716e4dbac5198659aa5e0.zip FreeBSD-src-f9956f69fbc5c984c7e716e4dbac5198659aa5e0.tar.gz |
Update PowerPC event timer code to use new event timers infrastructure.
Reviewed by: nwitehorn
Tested by: andreast
H/W donated by: Gheorghe Ardelean
-rw-r--r-- | sys/conf/files.powerpc | 1 | ||||
-rw-r--r-- | sys/powerpc/aim/clock.c | 178 | ||||
-rw-r--r-- | sys/powerpc/aim/interrupt.c | 6 | ||||
-rw-r--r-- | sys/powerpc/aim/machdep.c | 3 | ||||
-rw-r--r-- | sys/powerpc/booke/clock.c | 173 | ||||
-rw-r--r-- | sys/powerpc/booke/interrupt.c | 4 | ||||
-rw-r--r-- | sys/powerpc/booke/platform_bare.c | 2 | ||||
-rw-r--r-- | sys/powerpc/include/intr_machdep.h | 2 | ||||
-rw-r--r-- | sys/powerpc/include/md_var.h | 2 | ||||
-rw-r--r-- | sys/powerpc/include/smp.h | 1 | ||||
-rw-r--r-- | sys/powerpc/powerpc/intr_machdep.c | 20 | ||||
-rw-r--r-- | sys/powerpc/powerpc/mp_machdep.c | 12 |
12 files changed, 286 insertions, 118 deletions
diff --git a/sys/conf/files.powerpc b/sys/conf/files.powerpc index 409554f..1a4a8ff 100644 --- a/sys/conf/files.powerpc +++ b/sys/conf/files.powerpc @@ -52,6 +52,7 @@ dev/syscons/scvtb.c optional sc dev/tsec/if_tsec.c optional tsec dev/tsec/if_tsec_fdt.c optional tsec fdt dev/uart/uart_cpu_powerpc.c optional uart aim +kern/kern_clocksource.c standard kern/syscalls.c optional ktr libkern/ashldi3.c optional powerpc libkern/ashrdi3.c optional powerpc diff --git a/sys/powerpc/aim/clock.c b/sys/powerpc/aim/clock.c index 92f0c66..eb3337c 100644 --- a/sys/powerpc/aim/clock.c +++ b/sys/powerpc/aim/clock.c @@ -65,107 +65,195 @@ __FBSDID("$FreeBSD$"); #include <sys/interrupt.h> #include <sys/pcpu.h> #include <sys/sysctl.h> +#include <sys/timeet.h> #include <sys/timetc.h> #include <dev/ofw/openfirm.h> #include <machine/clock.h> #include <machine/cpu.h> +#include <machine/intr_machdep.h> #include <machine/md_var.h> #include <machine/smp.h> /* * Initially we assume a processor with a bus frequency of 12.5 MHz. */ -u_long ns_per_tick = 80; +static int initialized = 0; +static u_long ns_per_tick = 80; static u_long ticks_per_sec = 12500000; -static long ticks_per_intr; +static u_long *decr_counts[MAXCPU]; +static int decr_et_start(struct eventtimer *et, + struct bintime *first, struct bintime *period); +static int decr_et_stop(struct eventtimer *et); static timecounter_get_t decr_get_timecount; -static struct timecounter decr_timecounter = { +struct decr_state { + int mode; /* 0 - off, 1 - periodic, 2 - one-shot. */ + int32_t div; /* Periodic divisor. */ +}; +static DPCPU_DEFINE(struct decr_state, decr_state); + +static struct eventtimer decr_et; +static struct timecounter decr_tc = { decr_get_timecount, /* get_timecount */ 0, /* no poll_pps */ ~0u, /* counter_mask */ 0, /* frequency */ - "decrementer" /* name */ + "timebase" /* name */ }; +/* + * Decrementor interrupt handler. + */ void decr_intr(struct trapframe *frame) { - int32_t tick, nticks; + struct decr_state *s = DPCPU_PTR(decr_state); + int nticks = 0; + int32_t val; - /* - * Check whether we are initialized. - */ - if (!ticks_per_intr) + if (!initialized) return; - /* - * Based on the actual time delay since the last decrementer reload, - * we arrange for earlier interrupt next time. - */ - __asm ("mfdec %0" : "=r"(tick)); - for (nticks = 0; tick < 0; nticks++) - tick += ticks_per_intr; - mtdec(tick); + (*decr_counts[curcpu])++; + + if (s->mode == 1) { + /* + * Based on the actual time delay since the last decrementer + * reload, we arrange for earlier interrupt next time. + */ + __asm ("mfdec %0" : "=r"(val)); + while (val < 0) { + val += s->div; + nticks++; + } + mtdec(val); + } else if (s->mode == 2) { + nticks = 1; + decr_et_stop(NULL); + } while (nticks-- > 0) { - if (PCPU_GET(cpuid) == 0) - hardclock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); - else - hardclock_cpu(TRAPF_USERMODE(frame)); - - statclock(TRAPF_USERMODE(frame)); - if (profprocs != 0) - profclock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); + if (decr_et.et_active) + decr_et.et_event_cb(&decr_et, decr_et.et_arg); } } +/* + * BSP early initialization. + */ void decr_init(void) { struct cpuref cpu; - register_t msr; + char buf[32]; /* * Check the BSP's timebase frequency. Sometimes we can't find the BSP, so fall * back to the first CPU in this case. */ - if (platform_smp_get_bsp(&cpu) != 0) platform_smp_first_cpu(&cpu); - ticks_per_sec = platform_timebase_freq(&cpu); - - msr = mfmsr(); - mtmsr(msr & ~PSL_EE); - ns_per_tick = 1000000000 / ticks_per_sec; - ticks_per_intr = ticks_per_sec / hz; - mtdec(ticks_per_intr); set_cputicker(mftb, ticks_per_sec, 0); - - mtmsr(msr); + snprintf(buf, sizeof(buf), "cpu%d:decrementer", curcpu); + intrcnt_add(buf, &decr_counts[curcpu]); + decr_et_stop(NULL); + initialized = 1; } #ifdef SMP +/* + * AP early initialization. + */ void decr_ap_init(void) { + char buf[32]; + snprintf(buf, sizeof(buf), "cpu%d:decrementer", curcpu); + intrcnt_add(buf, &decr_counts[curcpu]); + decr_et_stop(NULL); } #endif +/* + * Final initialization. + */ void decr_tc_init(void) { - decr_timecounter.tc_frequency = ticks_per_sec; - tc_init(&decr_timecounter); + + decr_tc.tc_frequency = ticks_per_sec; + tc_init(&decr_tc); + decr_et.et_name = "decrementer"; + decr_et.et_flags = ET_FLAGS_PERIODIC | ET_FLAGS_ONESHOT | + ET_FLAGS_PERCPU; + decr_et.et_quality = 1000; + decr_et.et_frequency = ticks_per_sec; + decr_et.et_min_period.sec = 0; + decr_et.et_min_period.frac = + ((0x00000002LLU << 32) / ticks_per_sec) << 32; + decr_et.et_max_period.sec = 0x7fffffffLLU / ticks_per_sec; + decr_et.et_max_period.frac = + ((0x7fffffffLLU << 32) / ticks_per_sec) << 32; + decr_et.et_start = decr_et_start; + decr_et.et_stop = decr_et_stop; + decr_et.et_priv = NULL; + et_register(&decr_et); +} + +/* + * Event timer start method. + */ +static int +decr_et_start(struct eventtimer *et, + struct bintime *first, struct bintime *period) +{ + struct decr_state *s = DPCPU_PTR(decr_state); + uint32_t fdiv; + + if (period != NULL) { + s->mode = 1; + s->div = (decr_et.et_frequency * (period->frac >> 32)) >> 32; + if (period->sec != 0) + s->div += decr_et.et_frequency * period->sec; + } else { + s->mode = 2; + s->div = 0x7fffffff; + } + if (first != NULL) { + fdiv = (decr_et.et_frequency * (first->frac >> 32)) >> 32; + if (first->sec != 0) + fdiv += decr_et.et_frequency * first->sec; + } else + fdiv = s->div; + + mtdec(fdiv); + return (0); +} + +/* + * Event timer stop method. + */ +static int +decr_et_stop(struct eventtimer *et) +{ + struct decr_state *s = DPCPU_PTR(decr_state); + + s->mode = 0; + s->div = 0x7fffffff; + mtdec(s->div); + return (0); } +/* + * Timecounter get method. + */ static unsigned decr_get_timecount(struct timecounter *tc) { @@ -189,17 +277,3 @@ DELAY(int n) tb = mftb(); } -/* - * Nothing to do. - */ -void -cpu_startprofclock(void) -{ - - /* Do nothing */ -} - -void -cpu_stopprofclock(void) -{ -} diff --git a/sys/powerpc/aim/interrupt.c b/sys/powerpc/aim/interrupt.c index 5f92d24..b06fb92 100644 --- a/sys/powerpc/aim/interrupt.c +++ b/sys/powerpc/aim/interrupt.c @@ -72,6 +72,7 @@ void powerpc_interrupt(struct trapframe *framep) { struct thread *td; + struct trapframe *oldframe; register_t ee; td = curthread; @@ -88,8 +89,11 @@ powerpc_interrupt(struct trapframe *framep) case EXC_DECR: critical_enter(); atomic_add_int(&td->td_intr_nesting_level, 1); + oldframe = td->td_intr_frame; + td->td_intr_frame = framep; decr_intr(framep); - atomic_subtract_int(&td->td_intr_nesting_level, 1); + td->td_intr_frame = oldframe; + atomic_subtract_int(&td->td_intr_nesting_level, 1); critical_exit(); break; diff --git a/sys/powerpc/aim/machdep.c b/sys/powerpc/aim/machdep.c index fe3939d..3290fa6 100644 --- a/sys/powerpc/aim/machdep.c +++ b/sys/powerpc/aim/machdep.c @@ -609,8 +609,7 @@ cpu_initclocks(void) { decr_tc_init(); - stathz = hz; - profhz = hz; + cpu_initclocks_bsp(); } /* diff --git a/sys/powerpc/booke/clock.c b/sys/powerpc/booke/clock.c index 5b9979a..a50a504 100644 --- a/sys/powerpc/booke/clock.c +++ b/sys/powerpc/booke/clock.c @@ -63,12 +63,14 @@ __FBSDID("$FreeBSD$"); #include <sys/kernel.h> #include <sys/sysctl.h> #include <sys/bus.h> +#include <sys/interrupt.h> #include <sys/ktr.h> #include <sys/pcpu.h> +#include <sys/timeet.h> #include <sys/timetc.h> -#include <sys/interrupt.h> #include <machine/clock.h> +#include <machine/intr_machdep.h> #include <machine/platform.h> #include <machine/psl.h> #include <machine/spr.h> @@ -78,33 +80,46 @@ __FBSDID("$FreeBSD$"); /* * Initially we assume a processor with a bus frequency of 12.5 MHz. */ -u_int tickspending; -u_long ns_per_tick = 80; -static u_long ticks_per_sec = 12500000; -static long ticks_per_intr; +static int initialized = 0; +static u_long ns_per_tick = 80; +static u_long ticks_per_sec = 12500000; +static u_long *decr_counts[MAXCPU]; #define DIFF19041970 2082844800 +static int decr_et_start(struct eventtimer *et, + struct bintime *first, struct bintime *period); +static int decr_et_stop(struct eventtimer *et); static timecounter_get_t decr_get_timecount; +struct decr_state { + int mode; /* 0 - off, 1 - periodic, 2 - one-shot. */ + int32_t div; /* Periodic divisor. */ +}; +static DPCPU_DEFINE(struct decr_state, decr_state); + +static struct eventtimer decr_et; static struct timecounter decr_timecounter = { decr_get_timecount, /* get_timecount */ 0, /* no poll_pps */ ~0u, /* counter_mask */ 0, /* frequency */ - "decrementer" /* name */ + "timebase" /* name */ }; +/* + * Decrementor interrupt handler. + */ void decr_intr(struct trapframe *frame) { + struct decr_state *s = DPCPU_PTR(decr_state); - /* - * Check whether we are initialized. - */ - if (!ticks_per_intr) + if (!initialized) return; + (*decr_counts[curcpu])++; + /* * Interrupt handler must reset DIS to avoid getting another * interrupt once EE is enabled. @@ -113,14 +128,11 @@ decr_intr(struct trapframe *frame) CTR1(KTR_INTR, "%s: DEC interrupt", __func__); - if (PCPU_GET(cpuid) == 0) - hardclock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); - else - hardclock_cpu(TRAPF_USERMODE(frame)); + if (s->mode == 2) + decr_et_stop(NULL); - statclock(TRAPF_USERMODE(frame)); - if (profprocs != 0) - profclock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); + if (decr_et.et_active) + decr_et.et_event_cb(&decr_et, decr_et.et_arg); } void @@ -128,57 +140,129 @@ cpu_initclocks(void) { decr_tc_init(); - stathz = hz; - profhz = hz; + cpu_initclocks_bsp(); } +/* + * BSP early initialization. + */ void decr_init(void) { struct cpuref cpu; - unsigned int msr; + char buf[32]; if (platform_smp_get_bsp(&cpu) != 0) platform_smp_first_cpu(&cpu); ticks_per_sec = platform_timebase_freq(&cpu); - - msr = mfmsr(); - mtmsr(msr & ~(PSL_EE)); - ns_per_tick = 1000000000 / ticks_per_sec; - ticks_per_intr = ticks_per_sec / hz; - - mtdec(ticks_per_intr); - - mtspr(SPR_DECAR, ticks_per_intr); - mtspr(SPR_TCR, mfspr(SPR_TCR) | TCR_DIE | TCR_ARE); set_cputicker(mftb, ticks_per_sec, 0); - - mtmsr(msr); + snprintf(buf, sizeof(buf), "cpu%d:decrementer", curcpu); + intrcnt_add(buf, &decr_counts[curcpu]); + decr_et_stop(NULL); + initialized = 1; } #ifdef SMP +/* + * AP early initialization. + */ void decr_ap_init(void) { + char buf[32]; - /* Set auto-reload value and enable DEC interrupts in TCR */ - mtspr(SPR_DECAR, ticks_per_intr); - mtspr(SPR_TCR, mfspr(SPR_TCR) | TCR_DIE | TCR_ARE); - - CTR2(KTR_INTR, "%s: set TCR=%p", __func__, mfspr(SPR_TCR)); + snprintf(buf, sizeof(buf), "cpu%d:decrementer", curcpu); + intrcnt_add(buf, &decr_counts[curcpu]); + decr_et_stop(NULL); } #endif +/* + * Final initialization. + */ void decr_tc_init(void) { decr_timecounter.tc_frequency = ticks_per_sec; tc_init(&decr_timecounter); + decr_et.et_name = "decrementer"; + decr_et.et_flags = ET_FLAGS_PERIODIC | ET_FLAGS_ONESHOT | + ET_FLAGS_PERCPU; + decr_et.et_quality = 1000; + decr_et.et_frequency = ticks_per_sec; + decr_et.et_min_period.sec = 0; + decr_et.et_min_period.frac = + ((0x00000002LLU << 32) / ticks_per_sec) << 32; + decr_et.et_max_period.sec = 0xfffffffeLLU / ticks_per_sec; + decr_et.et_max_period.frac = + ((0xfffffffeLLU << 32) / ticks_per_sec) << 32; + decr_et.et_start = decr_et_start; + decr_et.et_stop = decr_et_stop; + decr_et.et_priv = NULL; + et_register(&decr_et); +} + +/* + * Event timer start method. + */ +static int +decr_et_start(struct eventtimer *et, + struct bintime *first, struct bintime *period) +{ + struct decr_state *s = DPCPU_PTR(decr_state); + uint32_t fdiv, tcr; + + if (period != NULL) { + s->mode = 1; + s->div = (decr_et.et_frequency * (period->frac >> 32)) >> 32; + if (period->sec != 0) + s->div += decr_et.et_frequency * period->sec; + } else { + s->mode = 2; + s->div = 0xffffffff; + } + if (first != NULL) { + fdiv = (decr_et.et_frequency * (first->frac >> 32)) >> 32; + if (first->sec != 0) + fdiv += decr_et.et_frequency * first->sec; + } else + fdiv = s->div; + + tcr = mfspr(SPR_TCR); + tcr |= TCR_DIE; + if (s->mode == 1) { + mtspr(SPR_DECAR, s->div); + tcr |= TCR_ARE; + } else + tcr &= ~TCR_ARE; + mtdec(fdiv); + mtspr(SPR_TCR, tcr); + return (0); } +/* + * Event timer stop method. + */ +static int +decr_et_stop(struct eventtimer *et) +{ + struct decr_state *s = DPCPU_PTR(decr_state); + uint32_t tcr; + + s->mode = 0; + s->div = 0xffffffff; + tcr = mfspr(SPR_TCR); + tcr &= ~(TCR_DIE | TCR_ARE); + mtspr(SPR_TCR, tcr); + return (0); +} + +/* + * Timecounter get method. + */ static unsigned decr_get_timecount(struct timecounter *tc) { @@ -203,18 +287,3 @@ DELAY(int n) } while (now < end || (now > start && end < start)); } -/* - * Nothing to do. - */ -void -cpu_startprofclock(void) -{ - - /* Do nothing */ -} - -void -cpu_stopprofclock(void) -{ - -} diff --git a/sys/powerpc/booke/interrupt.c b/sys/powerpc/booke/interrupt.c index 1626a8f..c0bdee1 100644 --- a/sys/powerpc/booke/interrupt.c +++ b/sys/powerpc/booke/interrupt.c @@ -116,11 +116,15 @@ void powerpc_decr_interrupt(struct trapframe *framep) { struct thread *td; + struct trapframe *oldframe; td = PCPU_GET(curthread); critical_enter(); atomic_add_int(&td->td_intr_nesting_level, 1); + oldframe = td->td_intr_frame; + td->td_intr_frame = framep; decr_intr(framep); + td->td_intr_frame = oldframe; atomic_subtract_int(&td->td_intr_nesting_level, 1); critical_exit(); framep->srr1 &= ~PSL_WE; diff --git a/sys/powerpc/booke/platform_bare.c b/sys/powerpc/booke/platform_bare.c index bdfcbfc..c569d75 100644 --- a/sys/powerpc/booke/platform_bare.c +++ b/sys/powerpc/booke/platform_bare.c @@ -82,7 +82,7 @@ static platform_method_t bare_methods[] = { PLATFORMMETHOD(platform_smp_get_bsp, bare_smp_get_bsp), PLATFORMMETHOD(platform_smp_start_cpu, bare_smp_start_cpu), - PLATFORMMETHOD(platform_reset, e500_reset); + PLATFORMMETHOD(platform_reset, e500_reset), { 0, 0 } }; diff --git a/sys/powerpc/include/intr_machdep.h b/sys/powerpc/include/intr_machdep.h index 5a0e04a..67d7e79 100644 --- a/sys/powerpc/include/intr_machdep.h +++ b/sys/powerpc/include/intr_machdep.h @@ -48,6 +48,8 @@ struct trapframe; driver_filter_t powerpc_ipi_handler; +void intrcnt_add(const char *name, u_long **countp); + void powerpc_register_pic(device_t, u_int); int powerpc_ign_lookup(uint32_t pic_id); diff --git a/sys/powerpc/include/md_var.h b/sys/powerpc/include/md_var.h index 65c952a..a90967a 100644 --- a/sys/powerpc/include/md_var.h +++ b/sys/powerpc/include/md_var.h @@ -47,8 +47,6 @@ extern int busdma_swi_pending; extern vm_offset_t kstack0; extern vm_offset_t kstack0_phys; -extern u_long ns_per_tick; - extern int powerpc_pow_enabled; extern int cacheline_size; extern int hw_direct_map; diff --git a/sys/powerpc/include/smp.h b/sys/powerpc/include/smp.h index 64d13db..cf95278 100644 --- a/sys/powerpc/include/smp.h +++ b/sys/powerpc/include/smp.h @@ -36,6 +36,7 @@ #define IPI_RENDEZVOUS 2 #define IPI_STOP 3 #define IPI_STOP_HARD 3 +#define IPI_HARDCLOCK 4 #ifndef LOCORE diff --git a/sys/powerpc/powerpc/intr_machdep.c b/sys/powerpc/powerpc/intr_machdep.c index 5a0ff8c..4b2dbbe 100644 --- a/sys/powerpc/powerpc/intr_machdep.c +++ b/sys/powerpc/powerpc/intr_machdep.c @@ -95,6 +95,7 @@ struct powerpc_intr { device_t pic; u_int intline; u_int vector; + u_int cntindex; cpumask_t cpu; enum intr_trigger trig; enum intr_polarity pol; @@ -106,6 +107,7 @@ struct pic { int ipi_irq; }; +static u_int intrcnt_index = 0; static struct mtx intr_table_lock; static struct powerpc_intr *powerpc_intrs[INTR_VECTORS]; static struct pic piclist[MAX_PICS]; @@ -152,6 +154,16 @@ intrcnt_setname(const char *name, int index) MAXCOMLEN, name); } +void +intrcnt_add(const char *name, u_long **countp) +{ + int idx; + + idx = atomic_fetchadd_int(&intrcnt_index, 1); + *countp = &intrcnt[idx]; + intrcnt_setname(name, idx); +} + static struct powerpc_intr * intr_lookup(u_int irq) { @@ -200,8 +212,10 @@ intr_lookup(u_int irq) if (iscan == NULL && i->vector != -1) { powerpc_intrs[i->vector] = i; + i->cntindex = atomic_fetchadd_int(&intrcnt_index, 1); + i->cntp = &intrcnt[i->cntindex]; sprintf(intrname, "irq%u:", i->irq); - intrcnt_setname(intrname, i->vector); + intrcnt_setname(intrname, i->cntindex); nvectors++; } mtx_unlock(&intr_table_lock); @@ -384,8 +398,6 @@ powerpc_setup_intr(const char *name, u_int irq, driver_filter_t filter, if (error) return (error); - i->cntp = &intrcnt[i->vector]; - enable = 1; } @@ -393,7 +405,7 @@ powerpc_setup_intr(const char *name, u_int irq, driver_filter_t filter, intr_priority(flags), flags, cookiep); mtx_lock(&intr_table_lock); - intrcnt_setname(i->event->ie_fullname, i->vector); + intrcnt_setname(i->event->ie_fullname, i->cntindex); mtx_unlock(&intr_table_lock); if (!cold) { diff --git a/sys/powerpc/powerpc/mp_machdep.c b/sys/powerpc/powerpc/mp_machdep.c index 46f0295..a833638 100644 --- a/sys/powerpc/powerpc/mp_machdep.c +++ b/sys/powerpc/powerpc/mp_machdep.c @@ -59,7 +59,6 @@ extern struct pcpu __pcpu[MAXCPU]; volatile static int ap_awake; volatile static u_int ap_letgo; -volatile static uint32_t ap_decr; volatile static u_quad_t ap_timebase; static u_int ipi_msg_cnt[32]; static struct mtx ap_boot_mtx; @@ -79,9 +78,8 @@ machdep_ap_bootstrap(void) ; /* Initialize DEC and TB, sync with the BSP values */ - decr_ap_init(); mttb(ap_timebase); - __asm __volatile("mtdec %0" :: "r"(ap_decr)); + decr_ap_init(); /* Serialize console output and AP count increment */ mtx_lock_spin(&ap_boot_mtx); @@ -96,6 +94,9 @@ machdep_ap_bootstrap(void) /* Let the DEC and external interrupts go */ mtmsr(mfmsr() | PSL_EE); + /* Start per-CPU event timers. */ + cpu_initclocks_ap(); + /* Announce ourselves awake, and enter the scheduler */ sched_throw(NULL); } @@ -243,7 +244,6 @@ cpu_mp_unleash(void *dummy) ap_awake = 1; /* Provide our current DEC and TB values for APs */ - __asm __volatile("mfdec %0" : "=r"(ap_decr)); ap_timebase = mftb() + 10; __asm __volatile("msync; isync"); @@ -313,6 +313,10 @@ powerpc_ipi_handler(void *arg) atomic_clear_int(&stopped_cpus, self); CTR1(KTR_SMP, "%s: IPI_STOP (restart)", __func__); break; + case IPI_HARDCLOCK: + CTR1(KTR_SMP, "%s: IPI_HARDCLOCK", __func__); + hardclockintr(curthread->td_intr_frame); + break; } } |