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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ia64/iosapic.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-ia64/iosapic.h')
-rw-r--r--include/asm-ia64/iosapic.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/include/asm-ia64/iosapic.h b/include/asm-ia64/iosapic.h
new file mode 100644
index 000000000000..38a7a72791cc
--- /dev/null
+++ b/include/asm-ia64/iosapic.h
@@ -0,0 +1,110 @@
1#ifndef __ASM_IA64_IOSAPIC_H
2#define __ASM_IA64_IOSAPIC_H
3
4#define IOSAPIC_REG_SELECT 0x0
5#define IOSAPIC_WINDOW 0x10
6#define IOSAPIC_EOI 0x40
7
8#define IOSAPIC_VERSION 0x1
9
10/*
11 * Redirection table entry
12 */
13#define IOSAPIC_RTE_LOW(i) (0x10+i*2)
14#define IOSAPIC_RTE_HIGH(i) (0x11+i*2)
15
16#define IOSAPIC_DEST_SHIFT 16
17
18/*
19 * Delivery mode
20 */
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
28
29/*
30 * Interrupt polarity
31 */
32#define IOSAPIC_POLARITY_SHIFT 13
33#define IOSAPIC_POL_HIGH 0
34#define IOSAPIC_POL_LOW 1
35
36/*
37 * Trigger mode
38 */
39#define IOSAPIC_TRIGGER_SHIFT 15
40#define IOSAPIC_EDGE 0
41#define IOSAPIC_LEVEL 1
42
43/*
44 * Mask bit
45 */
46
47#define IOSAPIC_MASK_SHIFT 16
48#define IOSAPIC_MASK (1<<IOSAPIC_MASK_SHIFT)
49
50#ifndef __ASSEMBLY__
51
52#ifdef CONFIG_IOSAPIC
53
54#define NR_IOSAPICS 256
55
56static inline unsigned int iosapic_read(char __iomem *iosapic, unsigned int reg)
57{
58 writel(reg, iosapic + IOSAPIC_REG_SELECT);
59 return readl(iosapic + IOSAPIC_WINDOW);
60}
61
62static inline void iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
63{
64 writel(reg, iosapic + IOSAPIC_REG_SELECT);
65 writel(val, iosapic + IOSAPIC_WINDOW);
66}
67
68static inline void iosapic_eoi(char __iomem *iosapic, u32 vector)
69{
70 writel(vector, iosapic + IOSAPIC_EOI);
71}
72
73extern void __init iosapic_system_init (int pcat_compat);
74extern void __init iosapic_init (unsigned long address,
75 unsigned int gsi_base);
76extern int gsi_to_vector (unsigned int gsi);
77extern int gsi_to_irq (unsigned int gsi);
78extern void iosapic_enable_intr (unsigned int vector);
79extern int iosapic_register_intr (unsigned int gsi, unsigned long polarity,
80 unsigned long trigger);
81#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
82extern void iosapic_unregister_intr (unsigned int irq);
83#endif
84extern void __init iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
85 unsigned long polarity,
86 unsigned long trigger);
87extern int __init iosapic_register_platform_intr (u32 int_type,
88 unsigned int gsi,
89 int pmi_vector,
90 u16 eid, u16 id,
91 unsigned long polarity,
92 unsigned long trigger);
93extern unsigned int iosapic_version (char __iomem *addr);
94
95extern void iosapic_pci_fixup (int);
96#ifdef CONFIG_NUMA
97extern void __init map_iosapic_to_node (unsigned int, int);
98#endif
99#else
100#define iosapic_system_init(pcat_compat) do { } while (0)
101#define iosapic_init(address,gsi_base) do { } while (0)
102#define iosapic_register_intr(gsi,polarity,trigger) (gsi)
103#define iosapic_unregister_intr(irq) do { } while (0)
104#define iosapic_override_isa_irq(isa_irq,gsi,polarity,trigger) do { } while (0)
105#define iosapic_register_platform_intr(type,gsi,pmi,eid,id, \
106 polarity,trigger) (gsi)
107#endif
108
109# endif /* !__ASSEMBLY__ */
110#endif /* __ASM_IA64_IOSAPIC_H */