diff options
Diffstat (limited to 'sys/x86/isa/clock.c')
| -rw-r--r-- | sys/x86/isa/clock.c | 66 |
1 files changed, 13 insertions, 53 deletions
diff --git a/sys/x86/isa/clock.c b/sys/x86/isa/clock.c index 36dc36e..b0d49d5 100644 --- a/sys/x86/isa/clock.c +++ b/sys/x86/isa/clock.c @@ -87,8 +87,6 @@ __FBSDID("$FreeBSD$"); #define TIMER_DIV(x) ((i8254_freq + (x) / 2) / (x)) int clkintr_pending; -static int pscnt = 1; -static int psdiv = 1; #ifndef TIMER_FREQ #define TIMER_FREQ 1193182 #endif @@ -134,10 +132,7 @@ int hardclockintr(struct trapframe *frame) { - if (PCPU_GET(cpuid) == 0) - hardclock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); - else - hardclock_cpu(TRAPF_USERMODE(frame)); + timer1clock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); return (FILTER_HANDLED); } @@ -145,19 +140,7 @@ int statclockintr(struct trapframe *frame) { - profclockintr(frame); - statclock(TRAPF_USERMODE(frame)); - return (FILTER_HANDLED); -} - -int -profclockintr(struct trapframe *frame) -{ - - if (!using_atrtc_timer) - hardclockintr(frame); - if (profprocs != 0) - profclock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); + timer2clock(TRAPF_USERMODE(frame), TRAPF_PC(frame)); return (FILTER_HANDLED); } @@ -190,28 +173,11 @@ clkintr(struct trapframe *frame) (*cyclic_clock_func[cpu])(frame); #endif - if (using_atrtc_timer) { -#ifdef SMP - if (smp_started) - ipi_all_but_self(IPI_HARDCLOCK); -#endif - hardclockintr(frame); - } else { - if (--pscnt <= 0) { - pscnt = psratio; #ifdef SMP - if (smp_started) - ipi_all_but_self(IPI_STATCLOCK); + if (smp_started) + ipi_all_but_self(IPI_HARDCLOCK); #endif - statclockintr(frame); - } else { -#ifdef SMP - if (smp_started) - ipi_all_but_self(IPI_PROFCLOCK); -#endif - profclockintr(frame); - } - } + hardclockintr(frame); #ifdef DEV_MCA /* Reset clock interrupt by asserting bit 7 of port 0x61 */ @@ -295,20 +261,11 @@ rtcintr(struct trapframe *frame) while (rtcin(RTC_INTR) & RTCIR_PERIOD) { flag = 1; - if (--pscnt <= 0) { - pscnt = psdiv; #ifdef SMP - if (smp_started) - ipi_all_but_self(IPI_STATCLOCK); -#endif - statclockintr(frame); - } else { -#ifdef SMP - if (smp_started) - ipi_all_but_self(IPI_PROFCLOCK); + if (smp_started) + ipi_all_but_self(IPI_STATCLOCK); #endif - profclockintr(frame); - } + statclockintr(frame); } return(flag ? FILTER_HANDLED : FILTER_STRAY); } @@ -555,6 +512,7 @@ cpu_initclocks() * timecounter to user a simpler algorithm. */ if (using_lapic_timer == LAPIC_CLOCK_NONE) { + timer1hz = hz; intr_add_handler("clk", 0, (driver_filter_t *)clkintr, NULL, NULL, INTR_TYPE_CLK, NULL); i8254_intsrc = intr_lookup_source(0); @@ -577,6 +535,7 @@ cpu_initclocks() if (using_lapic_timer != LAPIC_CLOCK_ALL) { using_atrtc_timer = tasc; if (using_atrtc_timer) { + timer2hz = RTC_NOPROFRATE; /* Enable periodic interrupts from the RTC. */ intr_add_handler("rtc", 8, (driver_filter_t *)rtcintr, NULL, NULL, @@ -588,6 +547,7 @@ cpu_initclocks() stathz = hz; else stathz = hz / (hz / 128); + timer2hz = 0; } } @@ -601,7 +561,7 @@ cpu_startprofclock(void) if (using_lapic_timer == LAPIC_CLOCK_ALL || !using_atrtc_timer) return; atrtc_rate(RTCSA_PROF); - psdiv = pscnt = psratio; + timer2hz = RTC_PROFRATE; } void @@ -611,7 +571,7 @@ cpu_stopprofclock(void) if (using_lapic_timer == LAPIC_CLOCK_ALL || !using_atrtc_timer) return; atrtc_rate(RTCSA_NOPROF); - psdiv = pscnt = 1; + timer2hz = RTC_NOPROFRATE; } static int |
