| atrtc.c (27696) | atrtc.c (28487) |
|---|---|
| 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz and Don Ahn. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 20 unchanged lines hidden (view full) --- 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)clock.c 7.2 (Berkeley) 5/12/91 | 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz and Don Ahn. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 20 unchanged lines hidden (view full) --- 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)clock.c 7.2 (Berkeley) 5/12/91 |
| 37 * $Id: clock.c,v 1.97 1997/07/22 20:12:04 fsmp Exp $ | 37 * $Id: clock.c,v 1.8 1997/08/21 04:51:12 smp Exp smp $ |
| 38 */ 39 40/* 41 * Routines to handle clock hardware. 42 */ 43 44/* 45 * inittodr, settodr and support routines written --- 15 unchanged lines hidden (view full) --- 61#ifdef CLK_CALIBRATION_LOOP 62#include <machine/cons.h> 63#endif 64#include <machine/cpu.h> 65#include <machine/frame.h> 66#include <machine/ipl.h> 67#ifdef APIC_IO 68#include <machine/smp.h> | 38 */ 39 40/* 41 * Routines to handle clock hardware. 42 */ 43 44/* 45 * inittodr, settodr and support routines written --- 15 unchanged lines hidden (view full) --- 61#ifdef CLK_CALIBRATION_LOOP 62#include <machine/cons.h> 63#endif 64#include <machine/cpu.h> 65#include <machine/frame.h> 66#include <machine/ipl.h> 67#ifdef APIC_IO 68#include <machine/smp.h> |
| 69#include <machine/smptests.h> /** NEW_STRATEGY (,SMP_TIMER_NC) */ | |
| 70#endif /* APIC_IO */ 71 72#include <i386/isa/icu.h> 73#include <i386/isa/isa.h> 74#include <i386/isa/rtc.h> 75#include <i386/isa/timerreg.h> 76 | 69#endif /* APIC_IO */ 70 71#include <i386/isa/icu.h> 72#include <i386/isa/isa.h> 73#include <i386/isa/rtc.h> 74#include <i386/isa/timerreg.h> 75 |
| 76#include <i386/isa/intr_machdep.h> 77#include <sys/interrupt.h> 78 |
|
| 77/* 78 * 32-bit time_t's can't reach leap years before 1904 or after 2036, so we 79 * can use a simple formula for leap years. 80 */ 81#define LEAPYEAR(y) ((u_int)(y) % 4 == 0) 82#define DAYSPERYEAR (31+28+31+30+31+30+31+31+30+31+30+31) 83 84#define TIMER_DIV(x) ((timer_freq + (x) / 2) / (x)) --- 769 unchanged lines hidden (view full) --- 854 /* Setting stathz to nonzero early helps avoid races. */ 855 stathz = RTC_NOPROFRATE; 856 profhz = RTC_PROFRATE; 857 } 858 859 /* Finish initializing 8253 timer 0. */ 860#ifdef APIC_IO 861 | 79/* 80 * 32-bit time_t's can't reach leap years before 1904 or after 2036, so we 81 * can use a simple formula for leap years. 82 */ 83#define LEAPYEAR(y) ((u_int)(y) % 4 == 0) 84#define DAYSPERYEAR (31+28+31+30+31+30+31+31+30+31+30+31) 85 86#define TIMER_DIV(x) ((timer_freq + (x) / 2) / (x)) --- 769 unchanged lines hidden (view full) --- 856 /* Setting stathz to nonzero early helps avoid races. */ 857 stathz = RTC_NOPROFRATE; 858 profhz = RTC_PROFRATE; 859 } 860 861 /* Finish initializing 8253 timer 0. */ 862#ifdef APIC_IO 863 |
| 862#ifdef NEW_STRATEGY 863#ifdef SMP_TIMER_NC 864#error 'options SMP_TIMER_NC' no longer used, remove & reconfig. 865#endif /** XXX SMP_TIMER_NC */ 866 | |
| 867 /* 1st look for ExtInt on pin 0 */ 868 if (apic_int_type(0, 0) == 3) { 869 /* 870 * Allow 8254 timer to INTerrupt 8259: 871 * re-initialize master 8259: 872 * reset; prog 4 bytes, single ICU, edge triggered 873 */ 874 outb(IO_ICU1, 0x13); --- 17 unchanged lines hidden (view full) --- 892 /* XXX if (bootverbose) */ 893 printf("APIC_IO: routing 8254 via pin 2\n"); 894 } 895 896 /* better write that 8254 INT discover code... */ 897 else 898 panic("neither pin 0 or pin 2 works for 8254"); 899 | 864 /* 1st look for ExtInt on pin 0 */ 865 if (apic_int_type(0, 0) == 3) { 866 /* 867 * Allow 8254 timer to INTerrupt 8259: 868 * re-initialize master 8259: 869 * reset; prog 4 bytes, single ICU, edge triggered 870 */ 871 outb(IO_ICU1, 0x13); --- 17 unchanged lines hidden (view full) --- 889 /* XXX if (bootverbose) */ 890 printf("APIC_IO: routing 8254 via pin 2\n"); 891 } 892 893 /* better write that 8254 INT discover code... */ 894 else 895 panic("neither pin 0 or pin 2 works for 8254"); 896 |
| 900#else /** NEW_STRATEGY */ 901 902 /* 8254 is traditionally on ISA IRQ0 */ 903#if defined(SMP_TIMER_NC) 904 x = -1; 905#else 906 x = isa_apic_pin(0); 907#endif /** XXX SMP_TIMER_NC */ 908 909 if (x < 0) { 910 /* bummer, attempt to redirect thru the 8259 */ 911 if (bootverbose) 912 printf("APIC missing 8254 connection\n"); 913 914 /* allow 8254 timer to INTerrupt 8259 */ 915 x = inb(IO_ICU1 + 1); /* current mask in 8259 */ 916 x &= ~1; /* clear 8254 timer mask */ 917 outb(IO_ICU1 + 1, x); /* write new mask */ 918 919 /* program IO APIC for type 3 INT on INT0 */ 920 if (ext_int_setup(0, 0) < 0) 921 panic("8254 redirect impossible!"); 922 x = 0; /* 8259 is on 0 */ 923 } 924 925#endif /** NEW_STRATEGY */ 926 | |
| 927 /* setup the vectors */ 928 vec[x] = (u_int)vec8254; 929 Xintr8254 = (u_int)ivectors[x]; 930 mask8254 = (1 << x); 931 932 register_intr(/* irq */ x, /* XXX id */ 0, /* flags */ 0, 933 /* XXX */ (inthand2_t *)clkintr, &clk_imask, 934 /* unit */ 0); --- 26 unchanged lines hidden (view full) --- 961 diag = rtcin(RTC_DIAG); 962 if (diag != 0) 963 printf("RTC BIOS diagnostic error %b\n", diag, RTCDG_BITS); 964 965#ifdef APIC_IO 966 if (isa_apic_pin(8) != 8) 967 panic("APIC RTC != 8"); 968#endif /* APIC_IO */ | 897 /* setup the vectors */ 898 vec[x] = (u_int)vec8254; 899 Xintr8254 = (u_int)ivectors[x]; 900 mask8254 = (1 << x); 901 902 register_intr(/* irq */ x, /* XXX id */ 0, /* flags */ 0, 903 /* XXX */ (inthand2_t *)clkintr, &clk_imask, 904 /* unit */ 0); --- 26 unchanged lines hidden (view full) --- 931 diag = rtcin(RTC_DIAG); 932 if (diag != 0) 933 printf("RTC BIOS diagnostic error %b\n", diag, RTCDG_BITS); 934 935#ifdef APIC_IO 936 if (isa_apic_pin(8) != 8) 937 panic("APIC RTC != 8"); 938#endif /* APIC_IO */ |
| 939 |
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| 969 register_intr(/* irq */ 8, /* XXX id */ 1, /* flags */ 0, 970 /* XXX */ (inthand2_t *)rtcintr, &stat_imask, 971 /* unit */ 0); | 940 register_intr(/* irq */ 8, /* XXX id */ 1, /* flags */ 0, 941 /* XXX */ (inthand2_t *)rtcintr, &stat_imask, 942 /* unit */ 0); |
| 943 |
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| 972#ifdef APIC_IO 973 INTREN(APIC_IRQ8); 974#else 975 INTREN(IRQ8); 976#endif /* APIC_IO */ 977 978 writertc(RTC_STATUSB, rtc_statusb); 979} --- 77 unchanged lines hidden --- | 944#ifdef APIC_IO 945 INTREN(APIC_IRQ8); 946#else 947 INTREN(IRQ8); 948#endif /* APIC_IO */ 949 950 writertc(RTC_STATUSB, rtc_statusb); 951} --- 77 unchanged lines hidden --- |