1 #ifndef __ASM_IA64_IOSAPIC_H
2 #define __ASM_IA64_IOSAPIC_H
4 #define IOSAPIC_REG_SELECT 0x0
5 #define IOSAPIC_WINDOW 0x10
6 #define IOSAPIC_EOI 0x40
8 #define IOSAPIC_VERSION 0x1
11 * Redirection table entry
13 #define IOSAPIC_RTE_LOW(i) (0x10+i*2)
14 #define IOSAPIC_RTE_HIGH(i) (0x11+i*2)
16 #define IOSAPIC_DEST_SHIFT 16
21 #define IOSAPIC_DELIVERY_SHIFT 8
22 #define IOSAPIC_FIXED 0x0
23 #define IOSAPIC_LOWEST_PRIORITY 0x1
24 #define IOSAPIC_PMI 0x2
25 #define IOSAPIC_NMI 0x4
26 #define IOSAPIC_INIT 0x5
27 #define IOSAPIC_EXTINT 0x7
32 #define IOSAPIC_POLARITY_SHIFT 13
33 #define IOSAPIC_POL_HIGH 0
34 #define IOSAPIC_POL_LOW 1
39 #define IOSAPIC_TRIGGER_SHIFT 15
40 #define IOSAPIC_EDGE 0
41 #define IOSAPIC_LEVEL 1
47 #define IOSAPIC_MASK_SHIFT 16
48 #define IOSAPIC_MASK (1<<IOSAPIC_MASK_SHIFT)
54 #define NR_IOSAPICS 256
56 static inline unsigned int iosapic_read(char __iomem
*iosapic
, unsigned int reg
)
58 writel(reg
, iosapic
+ IOSAPIC_REG_SELECT
);
59 return readl(iosapic
+ IOSAPIC_WINDOW
);
62 static inline void iosapic_write(char __iomem
*iosapic
, unsigned int reg
, u32 val
)
64 writel(reg
, iosapic
+ IOSAPIC_REG_SELECT
);
65 writel(val
, iosapic
+ IOSAPIC_WINDOW
);
68 static inline void iosapic_eoi(char __iomem
*iosapic
, u32 vector
)
70 writel(vector
, iosapic
+ IOSAPIC_EOI
);
73 extern void __init
iosapic_system_init (int pcat_compat
);
74 extern int __devinit
iosapic_init (unsigned long address
,
75 unsigned int gsi_base
);
77 extern int iosapic_remove (unsigned int gsi_base
);
78 #endif /* CONFIG_HOTPLUG */
79 extern int gsi_to_vector (unsigned int gsi
);
80 extern int gsi_to_irq (unsigned int gsi
);
81 extern void iosapic_enable_intr (unsigned int vector
);
82 extern int iosapic_register_intr (unsigned int gsi
, unsigned long polarity
,
83 unsigned long trigger
);
84 #ifdef CONFIG_ACPI_DEALLOCATE_IRQ
85 extern void iosapic_unregister_intr (unsigned int irq
);
87 extern void __init
iosapic_override_isa_irq (unsigned int isa_irq
, unsigned int gsi
,
88 unsigned long polarity
,
89 unsigned long trigger
);
90 extern int __init
iosapic_register_platform_intr (u32 int_type
,
94 unsigned long polarity
,
95 unsigned long trigger
);
96 extern unsigned int iosapic_version (char __iomem
*addr
);
98 extern void iosapic_pci_fixup (int);
100 extern void __devinit
map_iosapic_to_node (unsigned int, int);
103 #define iosapic_system_init(pcat_compat) do { } while (0)
104 #define iosapic_init(address,gsi_base) (-EINVAL)
105 #ifdef CONFIG_HOTPLUG
106 #define iosapic_remove(gsi_base) (-ENODEV)
107 #endif /* CONFIG_HOTPLUG */
108 #define iosapic_register_intr(gsi,polarity,trigger) (gsi)
109 #define iosapic_unregister_intr(irq) do { } while (0)
110 #define iosapic_override_isa_irq(isa_irq,gsi,polarity,trigger) do { } while (0)
111 #define iosapic_register_platform_intr(type,gsi,pmi,eid,id, \
112 polarity,trigger) (gsi)
115 # endif /* !__ASSEMBLY__ */
116 #endif /* __ASM_IA64_IOSAPIC_H */
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