intr.h
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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997 Silicon Graphics, Inc.
*/
#ifndef __ASM_SN_INTR_H
#define __ASM_SN_INTR_H
/* Number of interrupt levels associated with each interrupt register. */
#define N_INTPEND_BITS 64
#define INT_PEND0_BASELVL 0
#define INT_PEND1_BASELVL 64
#define N_INTPENDJUNK_BITS 8
#define INTPENDJUNK_CLRBIT 0x80
/*
* Macros to manipulate the interrupt register on the calling hub chip.
*/
#define LOCAL_HUB_SEND_INTR(level) \
LOCAL_HUB_S(PI_INT_PEND_MOD, (0x100 | (level)))
#define REMOTE_HUB_SEND_INTR(hub, level) \
REMOTE_HUB_S((hub), PI_INT_PEND_MOD, (0x100 | (level)))
/*
* When clearing the interrupt, make sure this clear does make it
* to the hub. Otherwise we could end up losing interrupts.
* We do an uncached load of the int_pend0 register to ensure this.
*/
#define LOCAL_HUB_CLR_INTR(level) \
do { \
LOCAL_HUB_S(PI_INT_PEND_MOD, (level)); \
LOCAL_HUB_L(PI_INT_PEND0); \
} while (0);
#define REMOTE_HUB_CLR_INTR(hub, level) \
do { \
nasid_t __hub = (hub); \
\
REMOTE_HUB_S(__hub, PI_INT_PEND_MOD, (level)); \
REMOTE_HUB_L(__hub, PI_INT_PEND0); \
} while (0);
/*
* Hard-coded interrupt levels:
*/
/*
* L0 = SW1
* L1 = SW2
* L2 = INT_PEND0
* L3 = INT_PEND1
* L4 = RTC
* L5 = Profiling Timer
* L6 = Hub Errors
* L7 = Count/Compare (T5 counters)
*/
/*
* INT_PEND0 hard-coded bits.
*/
/*
* INT_PEND0 bits determined by hardware:
*/
#define RESERVED_INTR 0 /* What is this bit? */
#define GFX_INTR_A 1
#define GFX_INTR_B 2
#define PG_MIG_INTR 3
#define UART_INTR 4
#define CC_PEND_A 5
#define CC_PEND_B 6
/*
* INT_PEND0 used by the kernel for itself ...
*/
#define CPU_RESCHED_A_IRQ 7
#define CPU_RESCHED_B_IRQ 8
#define CPU_CALL_A_IRQ 9
#define CPU_CALL_B_IRQ 10
#define MSC_MESG_INTR 11
#define BASE_PCI_IRQ 12
/*
* INT_PEND0 again, bits determined by hardware / hardcoded:
*/
#define SDISK_INTR 63 /* SABLE name */
#define IP_PEND0_6_63 63 /* What is this bit? */
/*
* INT_PEND1 hard-coded bits:
*/
#define NI_BRDCAST_ERR_A 39
#define NI_BRDCAST_ERR_B 40
#define LLP_PFAIL_INTR_A 41 /* see ml/SN/SN0/sysctlr.c */
#define LLP_PFAIL_INTR_B 42
#define TLB_INTR_A 43 /* used for tlb flush random */
#define TLB_INTR_B 44
#define IP27_INTR_0 45 /* Reserved for PROM use */
#define IP27_INTR_1 46 /* do not use in Kernel */
#define IP27_INTR_2 47
#define IP27_INTR_3 48
#define IP27_INTR_4 49
#define IP27_INTR_5 50
#define IP27_INTR_6 51
#define IP27_INTR_7 52
#define BRIDGE_ERROR_INTR 53 /* Setup by PROM to catch */
/* Bridge Errors */
#define DEBUG_INTR_A 54
#define DEBUG_INTR_B 55 /* Used by symmon to stop all cpus */
#define IO_ERROR_INTR 57 /* Setup by PROM */
#define CLK_ERR_INTR 58
#define COR_ERR_INTR_A 59
#define COR_ERR_INTR_B 60
#define MD_COR_ERR_INTR 61
#define NI_ERROR_INTR 62
#define MSC_PANIC_INTR 63
#endif /* __ASM_SN_INTR_H */