Annotation of sys/arch/amd64/include/i82093reg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: i82093reg.h,v 1.2 2004/06/25 11:03:28 art Exp $ */
! 2: /* $NetBSD: i82093reg.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: /*
! 43: * Typically, the first apic lives here.
! 44: */
! 45: #define IOAPIC_BASE_DEFAULT 0xfec00000
! 46:
! 47: /*
! 48: * Memory-space registers.
! 49: */
! 50:
! 51: /*
! 52: * The externally visible registers are all 32 bits wide;
! 53: * store the register number of interest in IOAPIC_REG, and store/fetch
! 54: * the real value in IOAPIC_DATA.
! 55: */
! 56:
! 57:
! 58:
! 59: #define IOAPIC_REG 0x0000
! 60: #define IOAPIC_DATA 0x0010
! 61:
! 62: /*
! 63: * Internal I/O APIC registers.
! 64: */
! 65:
! 66: #define IOAPIC_ID 0x00
! 67:
! 68: #define IOAPIC_ID_SHIFT 24
! 69: #define IOAPIC_ID_MASK 0x0f000000
! 70:
! 71: /* Version, and maximum interrupt pin number. */
! 72:
! 73: #define IOAPIC_VER 0x01
! 74:
! 75: #define IOAPIC_VER_SHIFT 0
! 76: #define IOAPIC_VER_MASK 0x000000ff
! 77:
! 78: #define IOAPIC_MAX_SHIFT 16
! 79: #define IOAPIC_MAX_MASK 0x00ff0000
! 80:
! 81: /*
! 82: * Arbitration ID. Same format as IOAPIC_ID register.
! 83: */
! 84: #define IOAPIC_ARB 0x02
! 85:
! 86: /*
! 87: * Redirection table registers.
! 88: */
! 89:
! 90: #define IOAPIC_REDHI(pin) (0x11 + ((pin)<<1))
! 91: #define IOAPIC_REDLO(pin) (0x10 + ((pin)<<1))
! 92:
! 93: #define IOAPIC_REDHI_DEST_SHIFT 24 /* destination. */
! 94: #define IOAPIC_REDHI_DEST_MASK 0xff000000
! 95:
! 96: #define IOAPIC_REDLO_MASK 0x00010000 /* 0=enabled; 1=masked */
! 97:
! 98: #define IOAPIC_REDLO_LEVEL 0x00008000 /* 0=edge, 1=level */
! 99: #define IOAPIC_REDLO_RIRR 0x00004000 /* remote IRR; read only */
! 100: #define IOAPIC_REDLO_ACTLO 0x00002000 /* 0=act. hi; 1=act. lo */
! 101: #define IOAPIC_REDLO_DELSTS 0x00001000 /* 0=idle; 1=send pending */
! 102: #define IOAPIC_REDLO_DSTMOD 0x00000800 /* 0=physical; 1=logical */
! 103:
! 104: #define IOAPIC_REDLO_DEL_MASK 0x00000700 /* del. mode mask */
! 105: #define IOAPIC_REDLO_DEL_SHIFT 8
! 106:
! 107: #define IOAPIC_REDLO_DEL_FIXED 0
! 108: #define IOAPIC_REDLO_DEL_LOPRI 1
! 109: #define IOAPIC_REDLO_DEL_SMI 2
! 110: #define IOAPIC_REDLO_DEL_NMI 4
! 111: #define IOAPIC_REDLO_DEL_INIT 5
! 112: #define IOAPIC_REDLO_DEL_EXTINT 7
! 113:
! 114: #define IOAPIC_REDLO_VECTOR_MASK 0x000000ff /* delivery vector */
! 115:
! 116: #define IMCR_ADDR 0x22
! 117: #define IMCR_DATA 0x23
! 118:
! 119: #define IMCR_REGISTER 0x70
! 120: #define IMCR_PIC 0x00
! 121: #define IMCR_APIC 0x01
! 122:
! 123: #ifdef _KERNEL
! 124:
! 125: #define ioapic_asm_ack(num) \
! 126: movl $0,(_C_LABEL(local_apic)+LAPIC_EOI)(%rip)
! 127:
! 128: #ifdef MULTIPROCESSOR
! 129:
! 130: #ifdef notyet
! 131: #define ioapic_asm_lock(num) \
! 132: movl $1,%esi ;\
! 133: 77: \
! 134: xchgl %esi,PIC_LOCK(%rdi) ;\
! 135: testl %esi,%esi ;\
! 136: jne 77b
! 137:
! 138: #define ioapic_asm_unlock(num) \
! 139: movl $0,PIC_LOCK(%rdi)
! 140: #else
! 141: #define ioapic_asm_lock(num)
! 142: #define ioapic_asm_unlock(num)
! 143: #endif
! 144:
! 145: #else
! 146:
! 147: #define ioapic_asm_lock(num)
! 148: #define ioapic_asm_unlock(num)
! 149:
! 150: #endif /* MULTIPROCESSOR */
! 151:
! 152:
! 153: #define ioapic_mask(num) \
! 154: movq IS_PIC(%r14),%rdi ;\
! 155: ioapic_asm_lock(num) ;\
! 156: movl IS_PIN(%r14),%esi ;\
! 157: leaq 0x10(%rsi,%rsi,1),%rsi ;\
! 158: movq IOAPIC_SC_REG(%rdi),%r15 ;\
! 159: movl %esi, (%r15) ;\
! 160: movq IOAPIC_SC_DATA(%rdi),%r15 ;\
! 161: movl (%r15),%esi ;\
! 162: orl $IOAPIC_REDLO_MASK,%esi ;\
! 163: movl %esi,(%r15) ;\
! 164: ioapic_asm_unlock(num)
! 165:
! 166: #define ioapic_unmask(num) \
! 167: cmpq $IREENT_MAGIC,(TF_ERR+8)(%rsp) ;\
! 168: jne 79f ;\
! 169: movq IS_PIC(%r14),%rdi ;\
! 170: ioapic_asm_lock(num) ;\
! 171: movl IS_PIN(%r14),%esi ;\
! 172: leaq 0x10(%rsi,%rsi,1),%rsi ;\
! 173: movq IOAPIC_SC_REG(%rdi),%r15 ;\
! 174: movq IOAPIC_SC_DATA(%rdi),%r13 ;\
! 175: movl %esi, (%r15) ;\
! 176: movl (%r13),%r12d ;\
! 177: andl $~IOAPIC_REDLO_MASK,%r12d ;\
! 178: movl %esi,(%r15) ;\
! 179: movl %r12d,(%r13) ;\
! 180: ioapic_asm_unlock(num) ;\
! 181: 79:
! 182:
! 183: #endif
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