1/*
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
4 * for more details.
5 *
6 * Copyright (C) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
7 */
8
9#ifndef _ASM_IA64_SN_INTR_H
10#define _ASM_IA64_SN_INTR_H
11
12#include <linux/rcupdate.h>
13#include <asm/sn/types.h>
14
15#define SGI_UART_VECTOR		0xe9
16
17/* Reserved IRQs : Note, not to exceed IA64_SN2_FIRST_DEVICE_VECTOR */
18#define SGI_XPC_ACTIVATE	0x30
19#define SGI_II_ERROR		0x31
20#define SGI_XBOW_ERROR		0x32
21#define SGI_PCIASIC_ERROR	0x33
22#define SGI_ACPI_SCI_INT	0x34
23#define SGI_TIOCA_ERROR		0x35
24#define SGI_TIO_ERROR		0x36
25#define SGI_TIOCX_ERROR		0x37
26#define SGI_MMTIMER_VECTOR	0x38
27#define SGI_XPC_NOTIFY		0xe7
28
29#define IA64_SN2_FIRST_DEVICE_VECTOR	0x3c
30#define IA64_SN2_LAST_DEVICE_VECTOR	0xe6
31
32#define SN2_IRQ_RESERVED	0x1
33#define SN2_IRQ_CONNECTED	0x2
34#define SN2_IRQ_SHARED		0x4
35
36// The SN PROM irq struct
37struct sn_irq_info {
38	struct sn_irq_info *irq_next;	/* deprecated DO NOT USE     */
39	short		irq_nasid;	/* Nasid IRQ is assigned to  */
40	int		irq_slice;	/* slice IRQ is assigned to  */
41	int		irq_cpuid;	/* kernel logical cpuid	     */
42	int		irq_irq;	/* the IRQ number */
43	int		irq_int_bit;	/* Bridge interrupt pin */
44					/* <0 means MSI */
45	u64	irq_xtalkaddr;	/* xtalkaddr IRQ is sent to  */
46	int		irq_bridge_type;/* pciio asic type (pciio.h) */
47	void	       *irq_bridge;	/* bridge generating irq     */
48	void	       *irq_pciioinfo;	/* associated pciio_info_t   */
49	int		irq_last_intr;	/* For Shub lb lost intr WAR */
50	int		irq_cookie;	/* unique cookie 	     */
51	int		irq_flags;	/* flags */
52	int		irq_share_cnt;	/* num devices sharing IRQ   */
53	struct list_head	list;	/* list of sn_irq_info structs */
54	struct rcu_head		rcu;	/* rcu callback list */
55};
56
57extern void sn_send_IPI_phys(int, long, int, int);
58extern u64 sn_intr_alloc(nasid_t, int,
59			      struct sn_irq_info *,
60			      int, nasid_t, int);
61extern void sn_intr_free(nasid_t, int, struct sn_irq_info *);
62extern struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *, nasid_t, int);
63extern void sn_set_err_irq_affinity(unsigned int);
64extern struct list_head **sn_irq_lh;
65
66#define CPU_VECTOR_TO_IRQ(cpuid,vector) (vector)
67
68#endif /* _ASM_IA64_SN_INTR_H */
69