| apicvar.h (130980) | apicvar.h (138528) |
|---|---|
| 1/*- 2 * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 12 unchanged lines hidden (view full) --- 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * | 1/*- 2 * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 12 unchanged lines hidden (view full) --- 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * |
| 29 * $FreeBSD: head/sys/i386/include/apicvar.h 130980 2004-06-23 15:29:20Z jhb $ | 29 * $FreeBSD: head/sys/i386/include/apicvar.h 138528 2004-12-07 20:15:01Z ups $ |
| 30 */ 31 32#ifndef _MACHINE_APICVAR_H_ 33#define _MACHINE_APICVAR_H_ 34 35/* 36 * Local && I/O APIC variable definitions. 37 */ --- 38 unchanged lines hidden (view full) --- 76 * Note: 0x80 needs to be handled specially and not allocated to an 77 * I/O device! 78 */ 79 80#define APIC_ID_ALL 0xff 81#define APIC_IO_INTS (IDT_IO_INTS + 16) 82#define APIC_NUM_IOINTS 192 83 | 30 */ 31 32#ifndef _MACHINE_APICVAR_H_ 33#define _MACHINE_APICVAR_H_ 34 35/* 36 * Local && I/O APIC variable definitions. 37 */ --- 38 unchanged lines hidden (view full) --- 76 * Note: 0x80 needs to be handled specially and not allocated to an 77 * I/O device! 78 */ 79 80#define APIC_ID_ALL 0xff 81#define APIC_IO_INTS (IDT_IO_INTS + 16) 82#define APIC_NUM_IOINTS 192 83 |
| 84/* 85 ********************* !!! WARNING !!! ****************************** 86 * Each local apic has an interrupt receive fifo that is two entries deep 87 * for each interrupt priority class (higher 4 bits of interrupt vector). 88 * Once the fifo is full the APIC can no longer receive interrupts for this 89 * class and sending IPIs from other CPUs will be blocked. 90 * To avoid deadlocks there should be no more than two IPI interrupts 91 * pending at the same time. 92 * Currently this is guaranteed by dividing the IPIs in two groups that have 93 * each at most one IPI interrupt pending. The first group is protected by the 94 * smp_ipi_mtx and waits for the completion of the IPI (Only one IPI user 95 * at a time) The second group uses a single interrupt and a bitmap to avoid 96 * redundant IPI interrupts. 97 * 98 * Right now IPI_STOP used by kdb shares the interrupt priority class with 99 * the two IPI groups mentioned above. As such IPI_STOP may cause a deadlock. 100 * Eventually IPI_STOP should use NMI IPIs - this would eliminate this and 101 * other deadlocks caused by IPI_STOP. 102 */ 103 |
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| 84#define APIC_LOCAL_INTS 240 | 104#define APIC_LOCAL_INTS 240 |
| 85#define APIC_TIMER_INT APIC_LOCAL_INTS 86#define APIC_ERROR_INT (APIC_LOCAL_INTS + 1) 87#define APIC_THERMAL_INT (APIC_LOCAL_INTS + 2) | |
| 88 | 105 |
| 89#define APIC_IPI_INTS (APIC_LOCAL_INTS + 3) 90#define IPI_AST APIC_IPI_INTS /* Generate software trap. */ | 106#if 0 107#define APIC_TIMER_INT (APIC_LOCAL_INTS + X) 108#define APIC_ERROR_INT (APIC_LOCAL_INTS + X) 109#define APIC_THERMAL_INT (APIC_LOCAL_INTS + X) 110#endif 111 112#define APIC_IPI_INTS (APIC_LOCAL_INTS + 0) 113#define IPI_RENDEZVOUS (APIC_IPI_INTS) /* Inter-CPU rendezvous. */ |
| 91#define IPI_INVLTLB (APIC_IPI_INTS + 1) /* TLB Shootdown IPIs */ 92#define IPI_INVLPG (APIC_IPI_INTS + 2) 93#define IPI_INVLRNG (APIC_IPI_INTS + 3) 94#define IPI_LAZYPMAP (APIC_IPI_INTS + 4) /* Lazy pmap release. */ | 114#define IPI_INVLTLB (APIC_IPI_INTS + 1) /* TLB Shootdown IPIs */ 115#define IPI_INVLPG (APIC_IPI_INTS + 2) 116#define IPI_INVLRNG (APIC_IPI_INTS + 3) 117#define IPI_LAZYPMAP (APIC_IPI_INTS + 4) /* Lazy pmap release. */ |
| 95#define IPI_HARDCLOCK (APIC_IPI_INTS + 8) /* Inter-CPU clock handling. */ 96#define IPI_STATCLOCK (APIC_IPI_INTS + 9) 97#define IPI_RENDEZVOUS (APIC_IPI_INTS + 10) /* Inter-CPU rendezvous. */ 98#define IPI_STOP (APIC_IPI_INTS + 11) /* Stop CPU until restarted. */ | 118/* Vector to handle bitmap based IPIs */ 119#define IPI_BITMAP_VECTOR (APIC_IPI_INTS + 5) |
| 99 | 120 |
| 121/* IPIs handled by IPI_BITMAPED_VECTOR (XXX ups is there a better place?) */ 122#define IPI_AST 0 /* Generate software trap. */ 123#define IPI_HARDCLOCK 1 /* Inter-CPU clock handling. */ 124#define IPI_STATCLOCK 2 125#define IPI_BITMAP_LAST IPI_STATCLOCK 126#define IPI_IS_BITMAPED(x) ((x) <= IPI_BITMAP_LAST) 127 128#define IPI_STOP (APIC_IPI_INTS + 6) /* Stop CPU until restarted. */ 129 130/* The spurious interrupt can share the priority class with the IPIs since 131 * it is not a normal interrupt. (Does not use the APIC's interrupt fifo) 132 */ |
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| 100#define APIC_SPURIOUS_INT 255 101 102#define LVT_LINT0 0 103#define LVT_LINT1 1 104#define LVT_TIMER 2 105#define LVT_ERROR 3 106#define LVT_PMC 4 107#define LVT_THERMAL 5 --- 72 unchanged lines hidden --- | 133#define APIC_SPURIOUS_INT 255 134 135#define LVT_LINT0 0 136#define LVT_LINT1 1 137#define LVT_TIMER 2 138#define LVT_ERROR 3 139#define LVT_PMC 4 140#define LVT_THERMAL 5 --- 72 unchanged lines hidden --- |