xref: /src/sys/arch/x86/include/i82489reg.h

/*	$NetBSD: i82489reg.h,v 1.15.2.1 2017/05/02 03:19:17 pgoyette Exp $	*/

/*-
 * Copyright (c) 1998, 2008 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Frank van der Linden.
 *
 * 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.
 */


/*
 * Registers and constants for the 82489DX and Pentium (and up) integrated
 * "local" APIC.
 */

#define	LAPIC_ID		0x020	/* ID. (xAPIC: RW, x2APIC: RO) */
#	define LAPIC_ID_MASK		0xff000000
#	define LAPIC_ID_SHIFT		24

#define LAPIC_VERS		0x030	/* Version. RO */
#	define LAPIC_VERSION_MASK	0x000000ff
#	define LAPIC_VERSION_LVT_MASK	0x00ff0000
#	define LAPIC_VERSION_LVT_SHIFT	16
#	define LAPIC_VERSION_DIRECTED_EOI 0x01000000
#	define LAPIC_VERSION_EXTAPIC_SPACE 0x80000000

#define LAPIC_TPRI		0x080	/* Task Prio. RW */
#	define LAPIC_TPRI_MASK		0x000000ff
#	define LAPIC_TPRI_INT_MASK	0x000000f0
#	define LAPIC_TPRI_SUB_MASK	0x0000000f

#define LAPIC_APRI		0x090	/* Arbitration prio (xAPIC: RO, x2APIC: NA) */
#	define LAPIC_APRI_MASK		0x000000ff

#define LAPIC_PPRI		0x0a0	/* Processor prio. RO */
#define LAPIC_EOI		0x0b0	/* End Int. W */
#define LAPIC_RRR		0x0c0	/* Remote read (xAPIC: RO, x2APIC: NA) */
#define LAPIC_LDR		0x0d0	/* Logical dest. (xAPIC: RW, x2APIC: RO) */

#define LAPIC_DFR		0x0e0	/* Dest. format (xAPIC: RW, x2APIC: NA) */
#	define LAPIC_DFR_MASK		0xf0000000
#	define LAPIC_DFR_FLAT		0xf0000000
#	define LAPIC_DFR_CLUSTER	0x00000000

#define LAPIC_SVR		0x0f0	/* Spurious intvec RW */
#	define LAPIC_SVR_VECTOR_MASK	0x000000ff
#	define LAPIC_SVR_VEC_FIX	0x0000000f
#	define LAPIC_SVR_VEC_PROG	0x000000f0
#	define LAPIC_SVR_ENABLE		0x00000100
#	define LAPIC_SVR_SWEN		0x00000100
#	define LAPIC_SVR_FOCUS		0x00000200
#	define LAPIC_SVR_FDIS		0x00000200
#	define LAPIC_SVR_EOI_BC_DIS	0x00001000

#define LAPIC_ISR	0x100		/* In-Service Status RO */
#define LAPIC_TMR	0x180		/* Trigger Mode RO */
#define LAPIC_IRR	0x200		/* Interrupt Req RO */
#define LAPIC_ESR	0x280		/* Err status. RW */

#define LAPIC_LVT_CMCI	0x2f0		/* LVT CMCI RW */

#define LAPIC_ICRLO	0x300		/* Int. cmd. (xAPIC: RW, x2APIC: RW64) */
#	define LAPIC_DLMODE_MASK	0x00000700	/* Delivery Mode */
#	define LAPIC_DLMODE_FIXED	0x00000000
#	define LAPIC_DLMODE_LOW		0x00000100	/* N/A in x2APIC mode */
#	define LAPIC_DLMODE_SMI		0x00000200
#	define LAPIC_DLMODE_NMI		0x00000400
#	define LAPIC_DLMODE_INIT	0x00000500
#	define LAPIC_DLMODE_STARTUP	0x00000600
#	define LAPIC_DLMODE_EXTINT	0x00000700	/* N/A in x2APIC mode */

#	define LAPIC_DSTMODE_PHYS	0x00000000
#	define LAPIC_DSTMODE_LOG	0x00000800

#	define LAPIC_DLSTAT_BUSY	0x00001000	/* N/A in x2APIC mode */
#	define LAPIC_DLSTAT_IDLE	0x00000000	/* N/A in x2APIC mode */

#	define LAPIC_LEVEL_MASK		0x00004000
#	define LAPIC_LEVEL_ASSERT	0x00004000
#	define LAPIC_LEVEL_DEASSERT	0x00000000

#	define LAPIC_TRIGGER_MASK	0x00008000
#	define LAPIC_TRIGGER_EDGE	0x00000000
#	define LAPIC_TRIGGER_LEVEL	0x00008000

#	define LAPIC_DEST_MASK		0x000c0000
#	define LAPIC_DEST_DEFAULT	0x00000000
#	define LAPIC_DEST_SELF		0x00040000
#	define LAPIC_DEST_ALLINCL	0x00080000
#	define LAPIC_DEST_ALLEXCL	0x000c0000

#define LAPIC_ICRHI	0x310		/* Int. cmd. (xAPIC: RW, x2APIC: NA) */

#define LAPIC_LVTT	0x320		/* Loc.vec.(timer) RW */
#	define LAPIC_LVTT_VEC_MASK	0x000000ff
#	define LAPIC_LVTT_DS		0x00001000
#	define LAPIC_LVTT_M		0x00010000
#	define LAPIC_LVTT_TM		0x00020000

#define LAPIC_TMINT	0x330		/* Loc.vec (Thermal) RW */
#define LAPIC_PCINT	0x340		/* Loc.vec (Perf Mon) RW */
#define LAPIC_LVINT0	0x350		/* Loc.vec (LINT0) RW */
#	define LAPIC_LVT_DM_MASK	0x00000700
#	define LAPIC_LVT_DM_FIXED	0x00000000
#	define LAPIC_LVT_DM_SMI		0x00000200
#	define LAPIC_LVT_DM_NMI		0x00000400
#	define LAPIC_LVT_DM_INIT	0x00000500
#	define LAPIC_LVT_DM_EXTINT	0x00000700
#	define LAPIC_LVT_MASKED		0x00010000
#	define LAPIC_LVT_LEVTRIG	0x00008000
#	define LAPIC_LVT_REMOTE_IRR	0x00004000
#	define LAPIC_INP_POL		0x00002000
#	define LAPIC_PEND_SEND		0x00001000

#define LAPIC_LVINT1	0x360		/* Loc.vec (LINT1) RW */
#define LAPIC_LVERR	0x370		/* Loc.vec (ERROR) RW */
#define LAPIC_ICR_TIMER	0x380		/* Initial count RW */
#define LAPIC_CCR_TIMER	0x390		/* Current count RO */

#define LAPIC_DCR_TIMER	0x3e0		/* Divisor config RW */
#	define LAPIC_DCRT_DIV1		0x0b
#	define LAPIC_DCRT_DIV2		0x00
#	define LAPIC_DCRT_DIV4		0x01
#	define LAPIC_DCRT_DIV8		0x02
#	define LAPIC_DCRT_DIV16		0x03
#	define LAPIC_DCRT_DIV32		0x08
#	define LAPIC_DCRT_DIV64		0x09
#	define LAPIC_DCRT_DIV128	0x0a

#define LAPIC_SELF_IPI	0x3f0		/* SELF IPI (xAPIC: NA, x2APIC: W) */
#	define LAPIC_SELF_IPI_VEC_MASK	0x000000ff

#define LAPIC_MSIADDR_BASE		0xfee00000
#define	LAPIC_MSIADDR_DSTID_MASK	__BITS(19, 12)
#define	LAPIC_MSIADDR_RSVD0_MASK	__BITS(11, 4)
#define	LAPIC_MSIADDR_RH		__BIT(3)
#define	LAPIC_MSIADDR_DM		__BIT(2)
#define	LAPIC_MSIADDR_RSVD1_MASK	__BITS(1, 0)

#define	LAPIC_MSIDATA_VECTOR_MASK	__BITS(7, 0)
#define	LAPIC_MSIDATA_DM_MASK		__BITS(10, 8)
#define	LAPIC_MSIDATA_DM_FIXED		__SHIFTIN(0, LAPIC_MSIDATA_DM_MASK)
#define	LAPIC_MSIDATA_DM_LOPRI		__SHIFTIN(1, LAPIC_MSIDATA_DM_MASK)
#define	LAPIC_MSIDATA_DM_SMI		__SHIFTIN(2, LAPIC_MSIDATA_DM_MASK)
#define	LAPIC_MSIDATA_DM_RSVD0		__SHIFTIN(3, LAPIC_MSIDATA_DM_MASK)
#define	LAPIC_MSIDATA_DM_NMI		__SHIFTIN(4, LAPIC_MSIDATA_DM_MASK)
#define	LAPIC_MSIDATA_DM_INIT		__SHIFTIN(5, LAPIC_MSIDATA_DM_MASK)
#define	LAPIC_MSIDATA_DM_RSVD1		__SHIFTIN(6, LAPIC_MSIDATA_DM_MASK)
#define	LAPIC_MSIDATA_DM_EXTINT		__SHIFTIN(7, LAPIC_MSIDATA_DM_MASK)
#define	LAPIC_MSIDATA_RSVD0_MASK	__BITS(13, 11)
#define	LAPIC_MSIDATA_LEVEL_MASK	__BIT(14)
#define	LAPIC_MSIDATA_LEVEL_DEASSERT	__SHIFTIN(0, LAPIC_MSIDATA_LEVEL_MASK)
#define	LAPIC_MSIDATA_LEVEL_ASSERT	__SHIFTIN(1, LAPIC_MSIDATA_LEVEL_MASK)
#define	LAPIC_MSIDATA_TRGMODE_MASK	__BIT(15)
#define	LAPIC_MSIDATA_TRGMODE_EDGE	__SHIFTIN(0,LAPIC_MSIDATA_TRGMODE_MASK)
#define	LAPIC_MSIDATA_TRGMODE_LEVEL	__SHIFTIN(1,LAPIC_MSIDATA_TRGMODE_MASK)
#define	LAPIC_MSIDATA_RSVD1_MASK	__BITS(31, 16)

#define LAPIC_BASE		0xfee00000

#define LAPIC_IRQ_MASK(i)	(1 << ((i) + 1))

/* Extended APIC registers, valid when CPUID features4 EAPIC is present */
#define LEAPIC_FR	0x400	/* Feature register */
#	define LEAPIC_FR_ELC		__BITS(23,16) /* Ext. Lvt Count RO */
#	define LEAPIC_FR_EIDCAP		__BIT(2)     /* Ext. Apic ID Cap. RO */
#	define LEAPIC_FR_SEIOCAP	__BIT(1)     /* Specific EOI Cap. RO */
#	define LEAPIC_FR_IERCAP		__BIT(0)     /* Intr. Enable Reg. RO */

#define LEAPIC_CR	0x410	/* Control Register */
#	define LEAPIC_CR_EID_ENABLE	__BIT(2)     /* Ext. Apic ID enable */
#	define LEAPIC_CR_SEOI_ENABLE	__BIT(1)     /* Specific EOI enable */
#	define LEAPIC_CR_IER_ENABLE	__BIT(0)     /* Enable writes to IER */

#define LEAPIC_SEOIR	0x420	/* Specific EOI Register */
#	define LEAPIC_SEOI_VEC	__BITS(7,0)

#define LEAPIC_IER_480	0x480	/* Interrupts 0-31 */
#define LEAPIC_IER_490	0x490	/* Interrupts 32-63 */
#define LEAPIC_IER_4B0	0x4B0	/* Interrupts 64-95 */
#define LEAPIC_IER_4C0	0x4C0	/* Interrupts 96-127 */
#define LEAPIC_IER_4D0	0x4D0	/* Interrupts 128-159 */
#define LEAPIC_IER_4E0	0x4E0	/* Interrupts 160-191 */
#define LEAPIC_IER_4F0	0x4F0	/* Interrupts 192-255 */

/* Extended Local Vector Table Entries */
#define LEAPIC_LVTR_500	0x500
#define LEAPIC_LVTR_504	0x504
#define LEAPIC_LVTR_508	0x508
#define LEAPIC_LVTR_50C	0x50C
#define LEAPIC_LVTR_510	0x510
#define LEAPIC_LVTR_514	0x514
#define LEAPIC_LVTR_518	0x518
#define LEAPIC_LVTR_51C	0x51C
#define LEAPIC_LVTR_520	0x520
#define LEAPIC_LVTR_524	0x524
#define LEAPIC_LVTR_528	0x528
#define LEAPIC_LVTR_52C	0x52C
#define LEAPIC_LVTR_530	0x530
#	define LEAPIC_LVTR_MASK		__BIT(16)     /* interrupt masked RW */
#	define LEAPIC_LVTR_DSTAT	__BIT(12)	/* delivery state RO */
#	define LEAPIC_LVTR_MSGTYPE	__BITS(10,8)	/* Message type */
#	define LEAPIC_LVTR_VEC		__BITS(7,0)	/* the intr. vector */