2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 1992 - 1997 Silicon Graphics, Inc.
8 #ifndef __ASM_SN_INTR_H
9 #define __ASM_SN_INTR_H
11 /* Number of interrupt levels associated with each interrupt register. */
12 #define N_INTPEND_BITS 64
14 #define INT_PEND0_BASELVL 0
15 #define INT_PEND1_BASELVL 64
17 #define N_INTPENDJUNK_BITS 8
18 #define INTPENDJUNK_CLRBIT 0x80
21 * Macros to manipulate the interrupt register on the calling hub chip.
24 #define LOCAL_HUB_SEND_INTR(level) \
25 LOCAL_HUB_S(PI_INT_PEND_MOD, (0x100 | (level)))
26 #define REMOTE_HUB_SEND_INTR(hub, level) \
27 REMOTE_HUB_S((hub), PI_INT_PEND_MOD, (0x100 | (level)))
30 * When clearing the interrupt, make sure this clear does make it
31 * to the hub. Otherwise we could end up losing interrupts.
32 * We do an uncached load of the int_pend0 register to ensure this.
35 #define LOCAL_HUB_CLR_INTR(level) \
37 LOCAL_HUB_S(PI_INT_PEND_MOD, (level)); \
38 LOCAL_HUB_L(PI_INT_PEND0); \
41 #define REMOTE_HUB_CLR_INTR(hub, level) \
43 nasid_t __hub = (hub); \
45 REMOTE_HUB_S(__hub, PI_INT_PEND_MOD, (level)); \
46 REMOTE_HUB_L(__hub, PI_INT_PEND0); \
50 * Hard-coded interrupt levels:
59 * L5 = Profiling Timer
61 * L7 = Count/Compare (T5 counters)
66 * INT_PEND0 hard-coded bits.
70 * INT_PEND0 bits determined by hardware:
72 #define RESERVED_INTR 0 /* What is this bit? */
81 * INT_PEND0 used by the kernel for itself ...
83 #define CPU_RESCHED_A_IRQ 7
84 #define CPU_RESCHED_B_IRQ 8
85 #define CPU_CALL_A_IRQ 9
86 #define CPU_CALL_B_IRQ 10
87 #define MSC_MESG_INTR 11
88 #define BASE_PCI_IRQ 12
91 * INT_PEND0 again, bits determined by hardware / hardcoded:
93 #define SDISK_INTR 63 /* SABLE name */
94 #define IP_PEND0_6_63 63 /* What is this bit? */
97 * INT_PEND1 hard-coded bits:
99 #define NI_BRDCAST_ERR_A 39
100 #define NI_BRDCAST_ERR_B 40
102 #define LLP_PFAIL_INTR_A 41 /* see ml/SN/SN0/sysctlr.c */
103 #define LLP_PFAIL_INTR_B 42
105 #define TLB_INTR_A 43 /* used for tlb flush random */
106 #define TLB_INTR_B 44
108 #define IP27_INTR_0 45 /* Reserved for PROM use */
109 #define IP27_INTR_1 46 /* do not use in Kernel */
110 #define IP27_INTR_2 47
111 #define IP27_INTR_3 48
112 #define IP27_INTR_4 49
113 #define IP27_INTR_5 50
114 #define IP27_INTR_6 51
115 #define IP27_INTR_7 52
117 #define BRIDGE_ERROR_INTR 53 /* Setup by PROM to catch */
119 #define DEBUG_INTR_A 54
120 #define DEBUG_INTR_B 55 /* Used by symmon to stop all cpus */
121 #define IO_ERROR_INTR 57 /* Setup by PROM */
122 #define CLK_ERR_INTR 58
123 #define COR_ERR_INTR_A 59
124 #define COR_ERR_INTR_B 60
125 #define MD_COR_ERR_INTR 61
126 #define NI_ERROR_INTR 62
127 #define MSC_PANIC_INTR 63
129 #endif /* __ASM_SN_INTR_H */