1 /*
2  * Carsten Langgaard, carstenl@mips.com
3  * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
4  *
5  * ########################################################################
6  *
7  *  This program is free software; you can distribute it and/or modify it
8  *  under the terms of the GNU General Public License (Version 2) as
9  *  published by the Free Software Foundation.
10  *
11  *  This program is distributed in the hope it will be useful, but WITHOUT
12  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  *  for more details.
15  *
16  *  You should have received a copy of the GNU General Public License along
17  *  with this program; if not, write to the Free Software Foundation, Inc.,
18  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
19  *
20  * ########################################################################
21  *
22  * Defines for the Malta interrupt controller.
23  *
24  */
25 #ifndef _MIPS_MALTAINT_H
26 #define _MIPS_MALTAINT_H
27 
28 #include <irq.h>
29 
30 /*
31  * Interrupts 0..15 are used for Malta ISA compatible interrupts
32  */
33 #define MALTA_INT_BASE		0
34 
35 /* CPU interrupt offsets */
36 #define MIPSCPU_INT_SW0		0
37 #define MIPSCPU_INT_SW1		1
38 #define MIPSCPU_INT_MB0		2
39 #define MIPSCPU_INT_I8259A	MIPSCPU_INT_MB0
40 #define MIPSCPU_INT_MB1		3
41 #define MIPSCPU_INT_SMI		MIPSCPU_INT_MB1
42 #define MIPSCPU_INT_IPI0	MIPSCPU_INT_MB1	/* GIC IPI */
43 #define MIPSCPU_INT_MB2		4
44 #define MIPSCPU_INT_IPI1	MIPSCPU_INT_MB2	/* GIC IPI */
45 #define MIPSCPU_INT_MB3		5
46 #define MIPSCPU_INT_COREHI	MIPSCPU_INT_MB3
47 #define MIPSCPU_INT_MB4		6
48 #define MIPSCPU_INT_CORELO	MIPSCPU_INT_MB4
49 
50 /*
51  * Interrupts 64..127 are used for Soc-it Classic interrupts
52  */
53 #define MSC01C_INT_BASE		64
54 
55 /* SOC-it Classic interrupt offsets */
56 #define MSC01C_INT_TMR		0
57 #define MSC01C_INT_PCI		1
58 
59 /*
60  * Interrupts 64..127 are used for Soc-it EIC interrupts
61  */
62 #define MSC01E_INT_BASE		64
63 
64 /* SOC-it EIC interrupt offsets */
65 #define MSC01E_INT_SW0		1
66 #define MSC01E_INT_SW1		2
67 #define MSC01E_INT_MB0		3
68 #define MSC01E_INT_I8259A	MSC01E_INT_MB0
69 #define MSC01E_INT_MB1		4
70 #define MSC01E_INT_SMI		MSC01E_INT_MB1
71 #define MSC01E_INT_MB2		5
72 #define MSC01E_INT_MB3		6
73 #define MSC01E_INT_COREHI	MSC01E_INT_MB3
74 #define MSC01E_INT_MB4		7
75 #define MSC01E_INT_CORELO	MSC01E_INT_MB4
76 #define MSC01E_INT_TMR		8
77 #define MSC01E_INT_PCI		9
78 #define MSC01E_INT_PERFCTR	10
79 #define MSC01E_INT_CPUCTR	11
80 
81 /* GIC's Nomenclature for Core Interrupt Pins on the Malta */
82 #define GIC_CPU_INT0		0 /* Core Interrupt 2 	*/
83 #define GIC_CPU_INT1		1 /* .			*/
84 #define GIC_CPU_INT2		2 /* .			*/
85 #define GIC_CPU_INT3		3 /* .			*/
86 #define GIC_CPU_INT4		4 /* .			*/
87 #define GIC_CPU_INT5		5 /* Core Interrupt 5   */
88 
89 #define GIC_EXT_INTR(x)		x
90 
91 /* External Interrupts used for IPI */
92 #define GIC_IPI_EXT_INTR_RESCHED_VPE0	16
93 #define GIC_IPI_EXT_INTR_CALLFNC_VPE0	17
94 #define GIC_IPI_EXT_INTR_RESCHED_VPE1	18
95 #define GIC_IPI_EXT_INTR_CALLFNC_VPE1	19
96 #define GIC_IPI_EXT_INTR_RESCHED_VPE2	20
97 #define GIC_IPI_EXT_INTR_CALLFNC_VPE2	21
98 #define GIC_IPI_EXT_INTR_RESCHED_VPE3	22
99 #define GIC_IPI_EXT_INTR_CALLFNC_VPE3	23
100 
101 #define MIPS_GIC_IRQ_BASE	(MIPS_CPU_IRQ_BASE + 8)
102 
103 #ifndef __ASSEMBLY__
104 extern void maltaint_init(void);
105 #endif
106 
107 #endif /* !(_MIPS_MALTAINT_H) */
108