| pcrtc.c (92793) | pcrtc.c (93264) |
|---|---|
| 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 * $FreeBSD: head/sys/pc98/cbus/pcrtc.c 92793 2002-03-20 12:22:31Z kato $ | 37 * $FreeBSD: head/sys/pc98/cbus/pcrtc.c 93264 2002-03-27 05:39:23Z dillon $ |
| 38 */ 39 40/* 41 * Routines to handle clock hardware. 42 */ 43 44/* 45 * inittodr, settodr and support routines written --- 1280 unchanged lines hidden (view full) --- 1326{ 1327#ifndef PC98 1328 int diag; 1329#endif 1330#ifdef APIC_IO 1331 int apic_8254_trial; 1332 void *clkdesc; 1333#endif /* APIC_IO */ | 38 */ 39 40/* 41 * Routines to handle clock hardware. 42 */ 43 44/* 45 * inittodr, settodr and support routines written --- 1280 unchanged lines hidden (view full) --- 1326{ 1327#ifndef PC98 1328 int diag; 1329#endif 1330#ifdef APIC_IO 1331 int apic_8254_trial; 1332 void *clkdesc; 1333#endif /* APIC_IO */ |
| 1334 register_t crit; |
|
| 1334 1335#ifndef PC98 1336 if (statclock_disable) { 1337 /* 1338 * The stat interrupt mask is different without the 1339 * statistics clock. Also, don't set the interrupt 1340 * flag which would normally cause the RTC to generate 1341 * interrupts. --- 20 unchanged lines hidden (view full) --- 1362 apic_8254_intr = apic_irq(0, 0); 1363 setup_8254_mixed_mode(); 1364 } else 1365 panic("APIC_IO: Cannot route 8254 interrupt to CPU"); 1366 } 1367 1368 inthand_add("clk", apic_8254_intr, (driver_intr_t *)clkintr, NULL, 1369 INTR_TYPE_CLK | INTR_FAST, &clkdesc); | 1335 1336#ifndef PC98 1337 if (statclock_disable) { 1338 /* 1339 * The stat interrupt mask is different without the 1340 * statistics clock. Also, don't set the interrupt 1341 * flag which would normally cause the RTC to generate 1342 * interrupts. --- 20 unchanged lines hidden (view full) --- 1363 apic_8254_intr = apic_irq(0, 0); 1364 setup_8254_mixed_mode(); 1365 } else 1366 panic("APIC_IO: Cannot route 8254 interrupt to CPU"); 1367 } 1368 1369 inthand_add("clk", apic_8254_intr, (driver_intr_t *)clkintr, NULL, 1370 INTR_TYPE_CLK | INTR_FAST, &clkdesc); |
| 1371 crit = intr_disable(); |
|
| 1370 mtx_lock_spin(&icu_lock); 1371 INTREN(1 << apic_8254_intr); 1372 mtx_unlock_spin(&icu_lock); | 1372 mtx_lock_spin(&icu_lock); 1373 INTREN(1 << apic_8254_intr); 1374 mtx_unlock_spin(&icu_lock); |
| 1375 intr_restore(crit); |
|
| 1373 1374#else /* APIC_IO */ 1375 1376 /* 1377 * XXX Check the priority of this interrupt handler. I 1378 * couldn't find anything suitable in the BSD/OS code (grog, 1379 * 19 July 2000). 1380 */ 1381 inthand_add("clk", 0, (driver_intr_t *)clkintr, NULL, 1382 INTR_TYPE_CLK | INTR_FAST, NULL); | 1376 1377#else /* APIC_IO */ 1378 1379 /* 1380 * XXX Check the priority of this interrupt handler. I 1381 * couldn't find anything suitable in the BSD/OS code (grog, 1382 * 19 July 2000). 1383 */ 1384 inthand_add("clk", 0, (driver_intr_t *)clkintr, NULL, 1385 INTR_TYPE_CLK | INTR_FAST, NULL); |
| 1386 crit = intr_disable(); |
|
| 1383 mtx_lock_spin(&icu_lock); 1384 INTREN(IRQ0); 1385 mtx_unlock_spin(&icu_lock); | 1387 mtx_lock_spin(&icu_lock); 1388 INTREN(IRQ0); 1389 mtx_unlock_spin(&icu_lock); |
| 1390 intr_restore(crit); |
|
| 1386 1387#endif /* APIC_IO */ 1388 1389#ifndef PC98 1390 /* Initialize RTC. */ 1391 writertc(RTC_STATUSA, rtc_statusa); 1392 writertc(RTC_STATUSB, RTCSB_24HR); 1393 --- 9 unchanged lines hidden (view full) --- 1403#ifdef APIC_IO 1404 if (isa_apic_irq(8) != 8) 1405 panic("APIC RTC != 8"); 1406#endif /* APIC_IO */ 1407 1408 inthand_add("rtc", 8, (driver_intr_t *)rtcintr, NULL, 1409 INTR_TYPE_CLK | INTR_FAST, NULL); 1410 | 1391 1392#endif /* APIC_IO */ 1393 1394#ifndef PC98 1395 /* Initialize RTC. */ 1396 writertc(RTC_STATUSA, rtc_statusa); 1397 writertc(RTC_STATUSB, RTCSB_24HR); 1398 --- 9 unchanged lines hidden (view full) --- 1408#ifdef APIC_IO 1409 if (isa_apic_irq(8) != 8) 1410 panic("APIC RTC != 8"); 1411#endif /* APIC_IO */ 1412 1413 inthand_add("rtc", 8, (driver_intr_t *)rtcintr, NULL, 1414 INTR_TYPE_CLK | INTR_FAST, NULL); 1415 |
| 1416 crit = intr_disable(); |
|
| 1411 mtx_lock_spin(&icu_lock); 1412#ifdef APIC_IO 1413 INTREN(APIC_IRQ8); 1414#else 1415 INTREN(IRQ8); 1416#endif /* APIC_IO */ 1417 mtx_unlock_spin(&icu_lock); | 1417 mtx_lock_spin(&icu_lock); 1418#ifdef APIC_IO 1419 INTREN(APIC_IRQ8); 1420#else 1421 INTREN(IRQ8); 1422#endif /* APIC_IO */ 1423 mtx_unlock_spin(&icu_lock); |
| 1424 intr_restore(crit); |
|
| 1418 1419 writertc(RTC_STATUSB, rtc_statusb); 1420#endif /* PC98 */ 1421 1422#ifdef APIC_IO 1423 if (apic_8254_trial) { 1424 1425 printf("APIC_IO: Testing 8254 interrupt delivery\n"); 1426 while (read_intr_count(8) < 6) 1427 ; /* nothing */ 1428 if (read_intr_count(apic_8254_intr) < 3) { 1429 /* 1430 * The MP table is broken. 1431 * The 8254 was not connected to the specified pin 1432 * on the IO APIC. 1433 * Workaround: Limited variant of mixed mode. 1434 */ | 1425 1426 writertc(RTC_STATUSB, rtc_statusb); 1427#endif /* PC98 */ 1428 1429#ifdef APIC_IO 1430 if (apic_8254_trial) { 1431 1432 printf("APIC_IO: Testing 8254 interrupt delivery\n"); 1433 while (read_intr_count(8) < 6) 1434 ; /* nothing */ 1435 if (read_intr_count(apic_8254_intr) < 3) { 1436 /* 1437 * The MP table is broken. 1438 * The 8254 was not connected to the specified pin 1439 * on the IO APIC. 1440 * Workaround: Limited variant of mixed mode. 1441 */ |
| 1442 crit = intr_disable(); |
|
| 1435 mtx_lock_spin(&icu_lock); 1436 INTRDIS(1 << apic_8254_intr); 1437 mtx_unlock_spin(&icu_lock); | 1443 mtx_lock_spin(&icu_lock); 1444 INTRDIS(1 << apic_8254_intr); 1445 mtx_unlock_spin(&icu_lock); |
| 1446 intr_restore(crit); |
|
| 1438 inthand_remove(clkdesc); 1439 printf("APIC_IO: Broken MP table detected: " 1440 "8254 is not connected to " 1441 "IOAPIC #%d intpin %d\n", 1442 int_to_apicintpin[apic_8254_intr].ioapic, 1443 int_to_apicintpin[apic_8254_intr].int_pin); 1444 /* 1445 * Revoke current ISA IRQ 0 assignment and --- 6 unchanged lines hidden (view full) --- 1452 revoke_apic_irq(apic_8254_intr); 1453 assign_apic_irq(0, 0, apic_8254_intr); 1454 } 1455 apic_8254_intr = apic_irq(0, 0); 1456 setup_8254_mixed_mode(); 1457 inthand_add("clk", apic_8254_intr, 1458 (driver_intr_t *)clkintr, NULL, 1459 INTR_TYPE_CLK | INTR_FAST, NULL); | 1447 inthand_remove(clkdesc); 1448 printf("APIC_IO: Broken MP table detected: " 1449 "8254 is not connected to " 1450 "IOAPIC #%d intpin %d\n", 1451 int_to_apicintpin[apic_8254_intr].ioapic, 1452 int_to_apicintpin[apic_8254_intr].int_pin); 1453 /* 1454 * Revoke current ISA IRQ 0 assignment and --- 6 unchanged lines hidden (view full) --- 1461 revoke_apic_irq(apic_8254_intr); 1462 assign_apic_irq(0, 0, apic_8254_intr); 1463 } 1464 apic_8254_intr = apic_irq(0, 0); 1465 setup_8254_mixed_mode(); 1466 inthand_add("clk", apic_8254_intr, 1467 (driver_intr_t *)clkintr, NULL, 1468 INTR_TYPE_CLK | INTR_FAST, NULL); |
| 1469 crit = intr_disable(); |
|
| 1460 mtx_lock_spin(&icu_lock); 1461 INTREN(1 << apic_8254_intr); 1462 mtx_unlock_spin(&icu_lock); | 1470 mtx_lock_spin(&icu_lock); 1471 INTREN(1 << apic_8254_intr); 1472 mtx_unlock_spin(&icu_lock); |
| 1473 intr_restore(crit); |
|
| 1463 } 1464 1465 } 1466 if (apic_int_type(0, 0) != 3 || 1467 int_to_apicintpin[apic_8254_intr].ioapic != 0 || 1468 int_to_apicintpin[apic_8254_intr].int_pin != 0) 1469 printf("APIC_IO: routing 8254 via IOAPIC #%d intpin %d\n", 1470 int_to_apicintpin[apic_8254_intr].ioapic, --- 196 unchanged lines hidden --- | 1474 } 1475 1476 } 1477 if (apic_int_type(0, 0) != 3 || 1478 int_to_apicintpin[apic_8254_intr].ioapic != 0 || 1479 int_to_apicintpin[apic_8254_intr].int_pin != 0) 1480 printf("APIC_IO: routing 8254 via IOAPIC #%d intpin %d\n", 1481 int_to_apicintpin[apic_8254_intr].ioapic, --- 196 unchanged lines hidden --- |