Commit | Line | Data |
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1d05995b SR |
1 | #include <linux/platform_device.h> |
2 | ||
32231a66 | 3 | #include <asm/btfixup.h> |
d550bbd4 | 4 | #include <asm/cpu_type.h> |
32231a66 | 5 | |
6baa9b20 SR |
6 | struct irq_bucket { |
7 | struct irq_bucket *next; | |
8 | unsigned int real_irq; | |
9 | unsigned int irq; | |
10 | unsigned int pil; | |
11 | }; | |
12 | ||
13 | #define SUN4D_MAX_BOARD 10 | |
14 | #define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5) | |
15 | ||
16 | /* Map between the irq identifier used in hw to the | |
17 | * irq_bucket. The map is sufficient large to hold | |
18 | * the sun4d hw identifiers. | |
19 | */ | |
20 | extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ]; | |
21 | ||
22 | ||
0399bb5b SR |
23 | /* sun4m specific type definitions */ |
24 | ||
25 | /* This maps direct to CPU specific interrupt registers */ | |
26 | struct sun4m_irq_percpu { | |
27 | u32 pending; | |
28 | u32 clear; | |
29 | u32 set; | |
30 | }; | |
31 | ||
32 | /* This maps direct to global interrupt registers */ | |
33 | struct sun4m_irq_global { | |
34 | u32 pending; | |
35 | u32 mask; | |
36 | u32 mask_clear; | |
37 | u32 mask_set; | |
38 | u32 interrupt_target; | |
39 | }; | |
40 | ||
41 | extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS]; | |
42 | extern struct sun4m_irq_global __iomem *sun4m_irq_global; | |
43 | ||
62f08283 TK |
44 | /* The following definitions describe the individual platform features: */ |
45 | #define FEAT_L10_CLOCKSOURCE (1 << 0) /* L10 timer is used as a clocksource */ | |
46 | #define FEAT_L10_CLOCKEVENT (1 << 1) /* L10 timer is used as a clockevent */ | |
47 | #define FEAT_L14_ONESHOT (1 << 2) /* L14 timer clockevent can oneshot */ | |
48 | ||
bbdc2661 | 49 | /* |
472bc4f2 | 50 | * Platform specific configuration |
bbdc2661 SR |
51 | * The individual platforms assign their platform |
52 | * specifics in their init functions. | |
53 | */ | |
472bc4f2 | 54 | struct sparc_config { |
62f08283 | 55 | void (*init_timers)(void); |
1d05995b SR |
56 | unsigned int (*build_device_irq)(struct platform_device *op, |
57 | unsigned int real_irq); | |
62f08283 TK |
58 | |
59 | /* generic clockevent features - see FEAT_* above */ | |
60 | int features; | |
61 | ||
62 | /* clock rate used for clock event timer */ | |
63 | int clock_rate; | |
64 | ||
65 | /* one period for clock source timer */ | |
66 | unsigned int cs_period; | |
67 | ||
68 | /* function to obtain offsett for cs period */ | |
69 | unsigned int (*get_cycles_offset)(void); | |
bbdc2661 | 70 | }; |
472bc4f2 | 71 | extern struct sparc_config sparc_config; |
bbdc2661 | 72 | |
6baa9b20 SR |
73 | unsigned int irq_alloc(unsigned int real_irq, unsigned int pil); |
74 | void irq_link(unsigned int irq); | |
75 | void irq_unlink(unsigned int irq); | |
76 | void handler_irq(unsigned int pil, struct pt_regs *regs); | |
bbdc2661 | 77 | |
0f516813 AV |
78 | /* Dave Redman (djhr@tadpole.co.uk) |
79 | * changed these to function pointers.. it saves cycles and will allow | |
80 | * the irq dependencies to be split into different files at a later date | |
ee906c9e | 81 | * sun4m_irq.c etc so we could reduce the kernel size. |
0f516813 AV |
82 | * Jakub Jelinek (jj@sunsite.mff.cuni.cz) |
83 | * Changed these to btfixup entities... It saves cycles :) | |
84 | */ | |
85 | ||
32231a66 | 86 | BTFIXUPDEF_CALL(void, clear_clock_irq, void) |
32231a66 AV |
87 | BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int) |
88 | ||
32231a66 AV |
89 | static inline void clear_clock_irq(void) |
90 | { | |
91 | BTFIXUP_CALL(clear_clock_irq)(); | |
92 | } | |
93 | ||
32231a66 AV |
94 | static inline void load_profile_irq(int cpu, int limit) |
95 | { | |
96 | BTFIXUP_CALL(load_profile_irq)(cpu, limit); | |
97 | } | |
98 | ||
32231a66 AV |
99 | #ifdef CONFIG_SMP |
100 | BTFIXUPDEF_CALL(void, set_cpu_int, int, int) | |
101 | BTFIXUPDEF_CALL(void, clear_cpu_int, int, int) | |
32231a66 AV |
102 | |
103 | #define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level) | |
104 | #define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level) | |
55dd23ec DH |
105 | |
106 | /* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */ | |
38f7f8f0 | 107 | #define SUN4D_IPI_IRQ 13 |
55dd23ec DH |
108 | |
109 | extern void sun4d_ipi_interrupt(void); | |
110 | ||
32231a66 | 111 | #endif |