/* $OpenBSD: i82093reg.h,v 1.9 2025/09/05 16:57:48 kettenis Exp $ */ /* $NetBSD: i82093reg.h,v 1.1 2003/02/26 21:26:10 fvdl Exp $ */ /*- * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by RedBack Networks Inc. * * Author: Bill Sommerfeld * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Typically, the first apic lives here. */ #define IOAPIC_BASE_DEFAULT 0xfec00000 /* * Memory-space registers. */ /* * The externally visible registers are all 32 bits wide; * store the register number of interest in IOAPIC_REG, and store/fetch * the real value in IOAPIC_DATA. */ #define IOAPIC_REG 0x0000 #define IOAPIC_DATA 0x0010 /* * Internal I/O APIC registers. */ #define IOAPIC_ID 0x00 #define IOAPIC_ID_SHIFT 24 #define IOAPIC_ID_MASK 0x0f000000 /* Version, and maximum interrupt pin number. */ #define IOAPIC_VER 0x01 #define IOAPIC_VER_SHIFT 0 #define IOAPIC_VER_MASK 0x000000ff #define IOAPIC_MAX_SHIFT 16 #define IOAPIC_MAX_MASK 0x00ff0000 /* * Arbitration ID. Same format as IOAPIC_ID register. */ #define IOAPIC_ARB 0x02 /* * Redirection table registers. */ #define IOAPIC_REDHI(pin) (0x11 + ((pin)<<1)) #define IOAPIC_REDLO(pin) (0x10 + ((pin)<<1)) #define IOAPIC_REDHI_DEST_SHIFT 24 /* destination. */ #define IOAPIC_REDHI_DEST_MASK 0xff000000 #define IOAPIC_REDLO_MASK 0x00010000 /* 0=enabled; 1=masked */ #define IOAPIC_REDLO_LEVEL 0x00008000 /* 0=edge, 1=level */ #define IOAPIC_REDLO_RIRR 0x00004000 /* remote IRR; read only */ #define IOAPIC_REDLO_ACTLO 0x00002000 /* 0=act. hi; 1=act. lo */ #define IOAPIC_REDLO_DELSTS 0x00001000 /* 0=idle; 1=send pending */ #define IOAPIC_REDLO_DSTMOD 0x00000800 /* 0=physical; 1=logical */ #define IOAPIC_REDLO_DEL_MASK 0x00000700 /* del. mode mask */ #define IOAPIC_REDLO_DEL_SHIFT 8 #define IOAPIC_REDLO_DEL_FIXED 0 #define IOAPIC_REDLO_DEL_LOPRI 1 #define IOAPIC_REDLO_DEL_SMI 2 #define IOAPIC_REDLO_DEL_NMI 4 #define IOAPIC_REDLO_DEL_INIT 5 #define IOAPIC_REDLO_DEL_EXTINT 7 #define IOAPIC_REDLO_VECTOR_MASK 0x000000ff /* delivery vector */ #define IMCR_ADDR 0x22 #define IMCR_DATA 0x23 #define IMCR_REGISTER 0x70 #define IMCR_PIC 0x00 #define IMCR_APIC 0x01 #ifdef _KERNEL #include <machine/codepatch.h> #define ioapic_asm_ack(num) \ CODEPATCH_START ;\ movl $0,(local_apic+LAPIC_EOI)(%rip) ;\ CODEPATCH_END(CPTAG_EOI) #define ioapic_mask(num) \ movq IS_PIC(%r14),%rdi ;\ movl IS_PIN(%r14),%esi ;\ call ioapic_hwmask #define ioapic_unmask(num) \ cmpq $IREENT_MAGIC,IF_ERR(%rsp) ;\ jne 79f ;\ movq IS_PIC(%r14),%rdi ;\ movl IS_PIN(%r14),%esi ;\ call ioapic_hwunmask ;\ 79: #endif
