1#ifndef _ASM_IA64_HW_IRQ_H
2#define _ASM_IA64_HW_IRQ_H
3
4
5
6
7
8
9#include <linux/interrupt.h>
10#include <linux/sched.h>
11#include <linux/types.h>
12#include <linux/profile.h>
13
14#include <asm/machvec.h>
15#include <asm/ptrace.h>
16#include <asm/smp.h>
17
18#ifndef CONFIG_PARAVIRT
19typedef u8 ia64_vector;
20#else
21typedef u16 ia64_vector;
22#endif
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37#define IA64_MIN_VECTORED_IRQ 16
38#define IA64_MAX_VECTORED_IRQ 255
39#define IA64_NUM_VECTORS 256
40
41#define AUTO_ASSIGN -1
42
43#define IA64_SPURIOUS_INT_VECTOR 0x0f
44
45
46
47
48#define IA64_CPEP_VECTOR 0x1c
49#define IA64_CMCP_VECTOR 0x1d
50#define IA64_CPE_VECTOR 0x1e
51#define IA64_CMC_VECTOR 0x1f
52
53
54
55
56
57
58
59extern int ia64_first_device_vector;
60extern int ia64_last_device_vector;
61
62#define IA64_DEF_FIRST_DEVICE_VECTOR 0x30
63#define IA64_DEF_LAST_DEVICE_VECTOR 0xe7
64#define IA64_FIRST_DEVICE_VECTOR ia64_first_device_vector
65#define IA64_LAST_DEVICE_VECTOR ia64_last_device_vector
66#define IA64_MAX_DEVICE_VECTORS (IA64_DEF_LAST_DEVICE_VECTOR - IA64_DEF_FIRST_DEVICE_VECTOR + 1)
67#define IA64_NUM_DEVICE_VECTORS (IA64_LAST_DEVICE_VECTOR - IA64_FIRST_DEVICE_VECTOR + 1)
68
69#define IA64_MCA_RENDEZ_VECTOR 0xe8
70#define IA64_PERFMON_VECTOR 0xee
71#define IA64_TIMER_VECTOR 0xef
72#define IA64_MCA_WAKEUP_VECTOR 0xf0
73#define IA64_IPI_LOCAL_TLB_FLUSH 0xfc
74#define IA64_IPI_RESCHEDULE 0xfd
75#define IA64_IPI_VECTOR 0xfe
76
77
78
79#define IA64_IRQ_REDIRECTED (1 << 31)
80
81
82
83#define IA64_IPI_DEFAULT_BASE_ADDR 0xfee00000
84
85
86enum {
87 IA64_IPI_DM_INT = 0x0,
88 IA64_IPI_DM_PMI = 0x2,
89 IA64_IPI_DM_NMI = 0x4,
90 IA64_IPI_DM_INIT = 0x5,
91 IA64_IPI_DM_EXTINT = 0x7,
92};
93
94extern __u8 isa_irq_to_vector_map[16];
95#define isa_irq_to_vector(x) isa_irq_to_vector_map[(x)]
96
97struct irq_cfg {
98 ia64_vector vector;
99 cpumask_t domain;
100 cpumask_t old_domain;
101 unsigned move_cleanup_count;
102 u8 move_in_progress : 1;
103};
104extern spinlock_t vector_lock;
105extern struct irq_cfg irq_cfg[NR_IRQS];
106#define irq_to_domain(x) irq_cfg[(x)].domain
107DECLARE_PER_CPU(int[IA64_NUM_VECTORS], vector_irq);
108
109extern struct irq_chip irq_type_ia64_lsapic;
110
111#ifdef CONFIG_PARAVIRT_GUEST
112#include <asm/paravirt.h>
113#else
114#define ia64_register_ipi ia64_native_register_ipi
115#define assign_irq_vector ia64_native_assign_irq_vector
116#define free_irq_vector ia64_native_free_irq_vector
117#define register_percpu_irq ia64_native_register_percpu_irq
118#define ia64_resend_irq ia64_native_resend_irq
119#endif
120
121extern void ia64_native_register_ipi(void);
122extern int bind_irq_vector(int irq, int vector, cpumask_t domain);
123extern int ia64_native_assign_irq_vector (int irq);
124extern void ia64_native_free_irq_vector (int vector);
125extern int reserve_irq_vector (int vector);
126extern void __setup_vector_irq(int cpu);
127extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect);
128extern void ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action);
129extern int check_irq_used (int irq);
130extern void destroy_and_reserve_irq (unsigned int irq);
131
132#if defined(CONFIG_SMP) && (defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG))
133extern int irq_prepare_move(int irq, int cpu);
134extern void irq_complete_move(unsigned int irq);
135#else
136static inline int irq_prepare_move(int irq, int cpu) { return 0; }
137static inline void irq_complete_move(unsigned int irq) {}
138#endif
139
140static inline void ia64_native_resend_irq(unsigned int vector)
141{
142 platform_send_ipi(smp_processor_id(), vector, IA64_IPI_DM_INT, 0);
143}
144
145
146
147
148
149extern struct irq_desc irq_desc[NR_IRQS];
150
151#ifndef CONFIG_IA64_GENERIC
152static inline ia64_vector __ia64_irq_to_vector(int irq)
153{
154 return irq_cfg[irq].vector;
155}
156
157static inline unsigned int
158__ia64_local_vector_to_irq (ia64_vector vec)
159{
160 return __get_cpu_var(vector_irq)[vec];
161}
162#endif
163
164
165
166
167
168
169
170
171
172
173
174
175static inline ia64_vector
176irq_to_vector (int irq)
177{
178 return platform_irq_to_vector(irq);
179}
180
181
182
183
184
185
186static inline unsigned int
187local_vector_to_irq (ia64_vector vec)
188{
189 return platform_local_vector_to_irq(vec);
190}
191
192#endif
193