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1#include <linux/platform_device.h>
2
3#include <asm/btfixup.h>
4
5struct irq_bucket {
6 struct irq_bucket *next;
7 unsigned int real_irq;
8 unsigned int irq;
9 unsigned int pil;
10};
11
12#define SUN4D_MAX_BOARD 10
13#define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5)
14
15/* Map between the irq identifier used in hw to the
16 * irq_bucket. The map is sufficient large to hold
17 * the sun4d hw identifiers.
18 */
19extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ];
20
21
22/* sun4m specific type definitions */
23
24/* This maps direct to CPU specific interrupt registers */
25struct sun4m_irq_percpu {
26 u32 pending;
27 u32 clear;
28 u32 set;
29};
30
31/* This maps direct to global interrupt registers */
32struct sun4m_irq_global {
33 u32 pending;
34 u32 mask;
35 u32 mask_clear;
36 u32 mask_set;
37 u32 interrupt_target;
38};
39
40extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
41extern struct sun4m_irq_global __iomem *sun4m_irq_global;
42
43/*
44 * Platform specific irq configuration
45 * The individual platforms assign their platform
46 * specifics in their init functions.
47 */
48struct sparc_irq_config {
49 void (*init_timers)(irq_handler_t);
50 unsigned int (*build_device_irq)(struct platform_device *op,
51 unsigned int real_irq);
52};
53extern struct sparc_irq_config sparc_irq_config;
54
55unsigned int irq_alloc(unsigned int real_irq, unsigned int pil);
56void irq_link(unsigned int irq);
57void irq_unlink(unsigned int irq);
58void handler_irq(unsigned int pil, struct pt_regs *regs);
59
60/* Dave Redman (djhr@tadpole.co.uk)
61 * changed these to function pointers.. it saves cycles and will allow
62 * the irq dependencies to be split into different files at a later date
63 * sun4c_irq.c, sun4m_irq.c etc so we could reduce the kernel size.
64 * Jakub Jelinek (jj@sunsite.mff.cuni.cz)
65 * Changed these to btfixup entities... It saves cycles :)
66 */
67
68BTFIXUPDEF_CALL(void, clear_clock_irq, void)
69BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)
70
71static inline void clear_clock_irq(void)
72{
73 BTFIXUP_CALL(clear_clock_irq)();
74}
75
76static inline void load_profile_irq(int cpu, int limit)
77{
78 BTFIXUP_CALL(load_profile_irq)(cpu, limit);
79}
80
81#ifdef CONFIG_SMP
82BTFIXUPDEF_CALL(void, set_cpu_int, int, int)
83BTFIXUPDEF_CALL(void, clear_cpu_int, int, int)
84BTFIXUPDEF_CALL(void, set_irq_udt, int)
85
86#define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level)
87#define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level)
88#define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu)
89
90/* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */
91#define SUN4D_IPI_IRQ 13
92
93extern void sun4d_ipi_interrupt(void);
94
95#endif
1#include <linux/platform_device.h>
2
3#include <asm/cpu_type.h>
4
5struct irq_bucket {
6 struct irq_bucket *next;
7 unsigned int real_irq;
8 unsigned int irq;
9 unsigned int pil;
10};
11
12#define SUN4M_HARD_INT(x) (0x000000001 << (x))
13#define SUN4M_SOFT_INT(x) (0x000010000 << (x))
14
15#define SUN4D_MAX_BOARD 10
16#define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5)
17
18/* Map between the irq identifier used in hw to the
19 * irq_bucket. The map is sufficient large to hold
20 * the sun4d hw identifiers.
21 */
22extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ];
23
24
25/* sun4m specific type definitions */
26
27/* This maps direct to CPU specific interrupt registers */
28struct sun4m_irq_percpu {
29 u32 pending;
30 u32 clear;
31 u32 set;
32};
33
34/* This maps direct to global interrupt registers */
35struct sun4m_irq_global {
36 u32 pending;
37 u32 mask;
38 u32 mask_clear;
39 u32 mask_set;
40 u32 interrupt_target;
41};
42
43extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
44extern struct sun4m_irq_global __iomem *sun4m_irq_global;
45
46/* The following definitions describe the individual platform features: */
47#define FEAT_L10_CLOCKSOURCE (1 << 0) /* L10 timer is used as a clocksource */
48#define FEAT_L10_CLOCKEVENT (1 << 1) /* L10 timer is used as a clockevent */
49#define FEAT_L14_ONESHOT (1 << 2) /* L14 timer clockevent can oneshot */
50
51/*
52 * Platform specific configuration
53 * The individual platforms assign their platform
54 * specifics in their init functions.
55 */
56struct sparc_config {
57 void (*init_timers)(void);
58 unsigned int (*build_device_irq)(struct platform_device *op,
59 unsigned int real_irq);
60
61 /* generic clockevent features - see FEAT_* above */
62 int features;
63
64 /* clock rate used for clock event timer */
65 int clock_rate;
66
67 /* one period for clock source timer */
68 unsigned int cs_period;
69
70 /* function to obtain offsett for cs period */
71 unsigned int (*get_cycles_offset)(void);
72
73 void (*clear_clock_irq)(void);
74 void (*load_profile_irq)(int cpu, unsigned int limit);
75};
76extern struct sparc_config sparc_config;
77
78unsigned int irq_alloc(unsigned int real_irq, unsigned int pil);
79void irq_link(unsigned int irq);
80void irq_unlink(unsigned int irq);
81void handler_irq(unsigned int pil, struct pt_regs *regs);
82
83unsigned long leon_get_irqmask(unsigned int irq);
84
85/* irq_32.c */
86void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs);
87
88/* sun4m_irq.c */
89void sun4m_nmi(struct pt_regs *regs);
90
91/* sun4d_irq.c */
92void sun4d_handler_irq(unsigned int pil, struct pt_regs *regs);
93
94#ifdef CONFIG_SMP
95
96/* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */
97#define SUN4D_IPI_IRQ 13
98
99void sun4d_ipi_interrupt(void);
100
101#endif