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
37 struct 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 
57 extern void sn_send_IPI_phys(int, long, int, int);
58 extern u64 sn_intr_alloc(nasid_t, int,
59 			      struct sn_irq_info *,
60 			      int, nasid_t, int);
61 extern void sn_intr_free(nasid_t, int, struct sn_irq_info *);
62 extern struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *, nasid_t, int);
63 extern void sn_set_err_irq_affinity(unsigned int);
64 extern 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