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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef _SYS_INTREG_H
     27 #define	_SYS_INTREG_H
     28 
     29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     30 
     31 #include <sys/machintreg.h>
     32 
     33 #ifdef	__cplusplus
     34 extern "C" {
     35 #endif
     36 
     37 #define	INO_SIZE	6		/* Interrupt Number Offset bit size */
     38 #define	INR_SIZE	(IGN_SIZE + INO_SIZE)	/* Interrupt Number bit size */
     39 #define	MAX_IGN		(1 << IGN_SIZE) /* Max Interrupt Group Number size */
     40 #define	MAX_INO		(1 << INO_SIZE) /* Max Interrupt Number per group */
     41 #define	MAXDEVINTRS	(MAX_IGN * MAX_INO) /* Max hardware intrs allowed */
     42 
     43 /*
     44  * A platform may require use of the system interrupt table beyond
     45  * the maximum hardware interrupts specified above for virtual device
     46  * interrupts. If the platform does not specify MAXVINTRS we default to 0.
     47  */
     48 #ifndef MAXVINTRS
     49 #define	MAXVINTRS	0
     50 #endif
     51 
     52 /*
     53  * maximum system interrupts allowed
     54  */
     55 #define	MAXIVNUM	(MAXDEVINTRS + MAXVINTRS)
     56 
     57 /*
     58  * Interrupt State Machine
     59  *	Each interrupt source has a 2-bit state machine which ensures that
     60  *	software sees exactly one interrupt packet per assertion of the
     61  *	interrupt signal.
     62  */
     63 #define	ISM_IDLE	0x0	/* not asserted or pending */
     64 #define	ISM_TRANSMIT	0x1	/* asserted but is not dispatched */
     65 #define	ISM_PENDING	0x2	/* dispatched to a processor or is in transit */
     66 
     67 /*
     68  * Per-Processor Soft Interrupt Register
     69  * XXX use %asr when the new assembler supports them
     70  */
     71 #define	SET_SOFTINT	%asr20		/* ASR 0x14 */
     72 #define	CLEAR_SOFTINT	%asr21		/* ASR 0x15 */
     73 #define	SOFTINT		%asr22		/* ASR 0x16 */
     74 #define	SOFTINT_MASK	0xFFFE		/* <15:1> */
     75 #define	TICK_INT_MASK	0x1		/* <0> */
     76 #define	STICK_INT_MASK	0x10000		/* <0> */
     77 
     78 /*
     79  * Per-Processor TICK Register and TICK_Compare registers
     80  *
     81  */
     82 #define	TICK_COMPARE	%asr23		/* ASR 0x17 */
     83 #define	STICK		%asr24		/* ASR 0x18 */
     84 #define	STICK_COMPARE	%asr25		/* ASR 0x19 */
     85 #define	TICKINT_DIS_SHFT	0x3f
     86 
     87 #ifndef _ASM
     88 
     89 /*
     90  * Interrupt Packet (mondo)
     91  */
     92 struct intr_packet {
     93 	uint64_t intr_data0; /* can be an interrupt number or a pc */
     94 	uint64_t intr_data1;
     95 	uint64_t intr_data2;
     96 };
     97 
     98 /*
     99  * Leftover bogus stuff; removed them later
    100  */
    101 struct cpu_intreg {
    102 	uint_t	pend;
    103 	uint_t	clr_pend;
    104 	uint_t	set_pend;
    105 	uchar_t	filler[0x1000 - 0xc];
    106 };
    107 
    108 struct sys_intreg {
    109 	uint_t	sys_pend;
    110 	uint_t	sys_m;
    111 	uint_t	sys_mclear;
    112 	uint_t	sys_mset;
    113 	uint_t	itr;
    114 };
    115 
    116 #endif  /* _ASM */
    117 
    118 #ifdef	__cplusplus
    119 }
    120 #endif
    121 
    122 #endif	/* _SYS_INTREG_H */
    123