1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * include/asm-parisc/irq.h
4 *
5 * Copyright 2005 Matthew Wilcox <matthew@wil.cx>
6 */
7
8 #ifndef _ASM_PARISC_IRQ_H
9 #define _ASM_PARISC_IRQ_H
10
11 #include <linux/cpumask.h>
12 #include <asm/types.h>
13
14 #define NO_IRQ (-1)
15
16 #ifdef CONFIG_GSC
17 #define GSC_IRQ_BASE 16
18 #define GSC_IRQ_MAX 63
19 #define CPU_IRQ_BASE 64
20 #else
21 #define CPU_IRQ_BASE 16
22 #endif
23
24 #define TIMER_IRQ (CPU_IRQ_BASE + 0)
25 #define IPI_IRQ (CPU_IRQ_BASE + 1)
26 #define CPU_IRQ_MAX (CPU_IRQ_BASE + (BITS_PER_LONG - 1))
27
28 #define NR_IRQS (CPU_IRQ_MAX + 1)
29
30 static __inline__ int irq_canonicalize(int irq)
31 {
32 return (irq == 2) ? 9 : irq;
33 }
34
35 struct irq_chip;
36 struct irq_data;
37
38 void cpu_ack_irq(struct irq_data *d);
39 void cpu_eoi_irq(struct irq_data *d);
40
41 extern int txn_alloc_irq(unsigned int nbits);
42 extern int txn_claim_irq(int);
43 extern unsigned int txn_alloc_data(unsigned int);
44 extern unsigned long txn_alloc_addr(unsigned int);
45 extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
46
47 extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *);
48 extern int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest);
49
50 #endif /* _ASM_PARISC_IRQ_H */
51
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