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Annotation of sys/arch/i386/include/i82093var.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: i82093var.h,v 1.5 2006/05/09 18:41:22 kettenis Exp $  */
                      2: /* $NetBSD: i82093var.h,v 1.1 2003/02/26 21:26:10 fvdl Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 2000 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by RedBack Networks Inc.
                     10:  *
                     11:  * Author: Bill Sommerfeld
                     12:  *
                     13:  * Redistribution and use in source and binary forms, with or without
                     14:  * modification, are permitted provided that the following conditions
                     15:  * are met:
                     16:  * 1. Redistributions of source code must retain the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer.
                     18:  * 2. Redistributions in binary form must reproduce the above copyright
                     19:  *    notice, this list of conditions and the following disclaimer in the
                     20:  *    documentation and/or other materials provided with the distribution.
                     21:  * 3. All advertising materials mentioning features or use of this software
                     22:  *    must display the following acknowledgement:
                     23:  *        This product includes software developed by the NetBSD
                     24:  *        Foundation, Inc. and its contributors.
                     25:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     26:  *    contributors may be used to endorse or promote products derived
                     27:  *    from this software without specific prior written permission.
                     28:  *
                     29:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     30:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     31:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     32:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     33:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     34:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     35:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     36:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     37:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     38:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     39:  * POSSIBILITY OF SUCH DAMAGE.
                     40:  */
                     41:
                     42: #ifndef _I386_I82093VAR_H_
                     43: #define _I386_I82093VAR_H_
                     44:
                     45: #include <machine/apicvar.h>
                     46:
                     47: struct ioapic_pin
                     48: {
                     49:        struct intrhand         *ip_handler;
                     50:        struct ioapic_pin       *ip_next; /* next pin on this vector */
                     51:        struct mp_intr_map      *ip_map;
                     52:        int                     ip_vector; /* IDT vector */
                     53:        int                     ip_type;
                     54:        int                     ip_minlevel;
                     55:        int                     ip_maxlevel;
                     56: };
                     57:
                     58: struct ioapic_softc {
                     59:        struct                  device sc_dev;  /* generic device glue */
                     60:        struct ioapic_softc     *sc_next;
                     61:        int                     sc_apicid;
                     62:        int                     sc_apic_vers;
                     63:        int                     sc_apic_vecbase; /* global int base if ACPI */
                     64:        int                     sc_apic_sz;     /* apic size*/
                     65:        int                     sc_flags;
                     66:        paddr_t                 sc_pa;          /* PA of ioapic */
                     67:        volatile u_int32_t      *sc_reg;        /* KVA of ioapic addr */
                     68:        volatile u_int32_t      *sc_data;       /* KVA of ioapic data */
                     69:        struct ioapic_pin       *sc_pins;       /* sc_apic_sz entries */
                     70: };
                     71:
                     72: /*
                     73:  * MP: intr_handle_t is bitfielded.
                     74:  * ih&0xff -> line number.
                     75:  * ih&0x10000000 -> if 0, old-style isa irq; if 1, routed via ioapic.
                     76:  * (ih&0xff0000)>>16 -> ioapic id.
                     77:  * (ih&0x00ff00)>>8 -> ioapic line.
                     78:  */
                     79:
                     80: #define APIC_INT_VIA_APIC      0x10000000
                     81: #define APIC_INT_APIC_MASK     0x00ff0000
                     82: #define APIC_INT_APIC_SHIFT    16
                     83: #define APIC_INT_PIN_MASK      0x0000ff00
                     84: #define APIC_INT_PIN_SHIFT     8
                     85: #define APIC_INT_LINE_MASK     0x000000ff
                     86:
                     87: #define APIC_IRQ_APIC(x) ((x & APIC_INT_APIC_MASK) >> APIC_INT_APIC_SHIFT)
                     88: #define APIC_IRQ_PIN(x) ((x & APIC_INT_PIN_MASK) >> APIC_INT_PIN_SHIFT)
                     89:
                     90: /* I/O APIC ID remapping helper macros. */
                     91: #define IOAPIC_REMAP_MASK      (IOAPIC_ID_MASK >> IOAPIC_ID_SHIFT)
                     92: #define IOAPIC_REMAP_FLAG      ((IOAPIC_REMAP_MASK + 1) << 1)
                     93: #define IOAPIC_REMAP(old_id, new_id) \
                     94:     (ioapic_id_remap[(old_id)] = IOAPIC_REMAP_FLAG | (new_id))
                     95: #define IOAPIC_REMAPPED(id)    (ioapic_id_remap[(id)] & IOAPIC_REMAP_FLAG)
                     96: #define IOAPIC_REMAPPED_ID(id) \
                     97:     (IOAPIC_REMAPPED(id) ? ioapic_id_remap[(id)] & IOAPIC_REMAP_MASK : (id))
                     98:
                     99: void   *apic_intr_establish(int, int, int, int (*)(void *), void *, char *);
                    100: void   apic_intr_disestablish(void *);
                    101:
                    102: void   ioapic_print_redir(struct ioapic_softc *, char *, int);
                    103: void   ioapic_format_redir(char *, char *, int, u_int32_t, u_int32_t);
                    104: struct ioapic_softc *ioapic_find(int);
                    105: struct ioapic_softc *ioapic_find_bybase(int);
                    106:
                    107: void   ioapic_enable(void);
                    108: void   lapic_vectorset(void); /* XXX */
                    109:
                    110: extern int ioapic_bsp_id;
                    111: extern int nioapics;
                    112: extern struct ioapic_softc *ioapics;
                    113: extern u_int16_t ioapic_id_map;
                    114: extern u_int8_t ioapic_id_remap[];
                    115:
                    116: #endif /* !_I386_I82093VAR_H_ */