| 1 | /* $NetBSD: i82093var.h,v 1.14 2015/04/27 07:03:58 knakahara Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2000 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by RedBack Networks Inc. |
| 9 | * |
| 10 | * Author: Bill Sommerfeld |
| 11 | * |
| 12 | * Redistribution and use in source and binary forms, with or without |
| 13 | * modification, are permitted provided that the following conditions |
| 14 | * are met: |
| 15 | * 1. Redistributions of source code must retain the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer. |
| 17 | * 2. Redistributions in binary form must reproduce the above copyright |
| 18 | * notice, this list of conditions and the following disclaimer in the |
| 19 | * documentation and/or other materials provided with the distribution. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 22 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 23 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 24 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 31 | * POSSIBILITY OF SUCH DAMAGE. |
| 32 | */ |
| 33 | |
| 34 | #ifndef _X86_I82093VAR_H_ |
| 35 | #define _X86_I82093VAR_H_ |
| 36 | |
| 37 | #include <sys/device.h> |
| 38 | #include <machine/apicvar.h> |
| 39 | |
| 40 | struct ioapic_pin |
| 41 | { |
| 42 | struct ioapic_pin *ip_next; /* next pin on this vector */ |
| 43 | struct mp_intr_map *ip_map; |
| 44 | int ip_vector; /* IDT vector */ |
| 45 | int ip_type; |
| 46 | struct cpu_info *ip_cpu; /* target CPU */ |
| 47 | }; |
| 48 | |
| 49 | struct ioapic_softc { |
| 50 | device_t sc_dev; |
| 51 | struct pic sc_pic; |
| 52 | struct ioapic_softc *sc_next; |
| 53 | int sc_apicid; |
| 54 | int sc_apic_vers; |
| 55 | int sc_apic_vecbase; /* global int base if ACPI */ |
| 56 | int sc_apic_sz; /* apic size*/ |
| 57 | int sc_flags; |
| 58 | paddr_t sc_pa; /* PA of ioapic */ |
| 59 | volatile uint32_t *sc_reg; /* KVA of ioapic addr */ |
| 60 | volatile uint32_t *sc_data; /* KVA of ioapic data */ |
| 61 | struct ioapic_pin *sc_pins; /* sc_apic_sz entries */ |
| 62 | }; |
| 63 | |
| 64 | /* |
| 65 | * MP: intr_handle_t is bitfielded. |
| 66 | * ih&0xff -> legacy irq number. |
| 67 | * ih&0x10000000 -> if 0, old-style isa irq; if 1, routed via ioapic. |
| 68 | * (ih&0xff0000)>>16 -> ioapic id. |
| 69 | * (ih&0x00ff00)>>8 -> ioapic pin. |
| 70 | * |
| 71 | * MSI/MSI-X: |
| 72 | * (ih&0x000ff80000000000)>>43 -> MSI/MSI-X device id. |
| 73 | * (ih&0x000007ff00000000)>>32 -> MSI/MSI-X vector id in a device. |
| 74 | */ |
| 75 | #define MPSAFE_MASK 0x80000000ULL |
| 76 | #define APIC_INT_VIA_APIC 0x10000000ULL |
| 77 | #define APIC_INT_VIA_MSI 0x20000000ULL |
| 78 | #define APIC_INT_APIC_MASK 0x00ff0000ULL |
| 79 | #define APIC_INT_APIC_SHIFT 16 |
| 80 | #define APIC_INT_PIN_MASK 0x0000ff00ULL |
| 81 | #define APIC_INT_PIN_SHIFT 8 |
| 82 | |
| 83 | #define APIC_IRQ_APIC(x) (int)(((x) & APIC_INT_APIC_MASK) >> APIC_INT_APIC_SHIFT) |
| 84 | #define APIC_IRQ_PIN(x) (int)(((x) & APIC_INT_PIN_MASK) >> APIC_INT_PIN_SHIFT) |
| 85 | #define APIC_IRQ_ISLEGACY(x) (bool)(!((x) & APIC_INT_VIA_APIC)) |
| 86 | #define APIC_IRQ_LEGACY_IRQ(x) (int)((x) & 0xff) |
| 87 | |
| 88 | #define INT_VIA_MSI(x) (bool)(((x) & APIC_INT_VIA_MSI) != 0) |
| 89 | |
| 90 | #define MSI_INT_MSIX 0x1000000000000000ULL |
| 91 | #define MSI_INT_DEV_MASK 0x000ff80000000000ULL |
| 92 | #define MSI_INT_VEC_MASK 0x000007ff00000000ULL |
| 93 | |
| 94 | #define MSI_INT_IS_MSIX(x) (bool)((((x) & MSI_INT_MSIX) != 0)) |
| 95 | #define MSI_INT_MAKE_MSI(x) ((x) &= ~MSI_INT_MSIX) |
| 96 | #define MSI_INT_MAKE_MSIX(x) ((x) |= MSI_INT_MSIX) |
| 97 | #define MSI_INT_DEV(x) __SHIFTOUT((x), MSI_INT_DEV_MASK) |
| 98 | #define MSI_INT_VEC(x) __SHIFTOUT((x), MSI_INT_VEC_MASK) |
| 99 | |
| 100 | void ioapic_print_redir(struct ioapic_softc *, const char *, int); |
| 101 | void ioapic_format_redir(char *, const char *, int, uint32_t, uint32_t); |
| 102 | struct ioapic_softc *ioapic_find(int); |
| 103 | struct ioapic_softc *ioapic_find_bybase(int); |
| 104 | |
| 105 | void ioapic_enable(void); |
| 106 | void ioapic_reenable(void); |
| 107 | |
| 108 | extern int nioapics; |
| 109 | extern struct ioapic_softc *ioapics; |
| 110 | |
| 111 | #endif /* !_X86_I82093VAR_H_ */ |
| 112 | |