1 #include <linux/platform_device.h>
2
3 #include <asm/btfixup.h>
4
5 struct 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 */
19 extern 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 */
25 struct sun4m_irq_percpu {
26 u32 pending;
27 u32 clear;
28 u32 set;
29 };
30
31 /* This maps direct to global interrupt registers */
32 struct sun4m_irq_global {
33 u32 pending;
34 u32 mask;
35 u32 mask_clear;
36 u32 mask_set;
37 u32 interrupt_target;
38 };
39
40 extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
41 extern 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 */
48 struct 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 };
53 extern struct sparc_irq_config sparc_irq_config;
54
55 unsigned int irq_alloc(unsigned int real_irq, unsigned int pil);
56 void irq_link(unsigned int irq);
57 void irq_unlink(unsigned int irq);
58 void 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
BTFIXUPDEF_CALL(void,clear_clock_irq,void)68 BTFIXUPDEF_CALL(void, clear_clock_irq, void)
69 BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)
70
71 static inline void clear_clock_irq(void)
72 {
73 BTFIXUP_CALL(clear_clock_irq)();
74 }
75
load_profile_irq(int cpu,int limit)76 static inline void load_profile_irq(int cpu, int limit)
77 {
78 BTFIXUP_CALL(load_profile_irq)(cpu, limit);
79 }
80
81 #ifdef CONFIG_SMP
82 BTFIXUPDEF_CALL(void, set_cpu_int, int, int)
83 BTFIXUPDEF_CALL(void, clear_cpu_int, int, int)
84 BTFIXUPDEF_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
93 extern void sun4d_ipi_interrupt(void);
94
95 #endif
96