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1 | #ifndef ASM_MSIDEF_H |
2 | #define ASM_MSIDEF_H | |
3 | ||
4 | /* | |
5 | * Constants for Intel APIC based MSI messages. | |
6 | */ | |
7 | ||
8 | /* | |
9 | * Shifts for MSI data | |
10 | */ | |
11 | ||
12 | #define MSI_DATA_VECTOR_SHIFT 0 | |
13 | #define MSI_DATA_VECTOR_MASK 0x000000ff | |
14 | #define MSI_DATA_VECTOR(v) (((v) << MSI_DATA_VECTOR_SHIFT) & MSI_DATA_VECTOR_MASK) | |
15 | ||
16 | #define MSI_DATA_DELIVERY_MODE_SHIFT 8 | |
17 | #define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_MODE_SHIFT) | |
18 | #define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_MODE_SHIFT) | |
19 | ||
20 | #define MSI_DATA_LEVEL_SHIFT 14 | |
21 | #define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT) | |
22 | #define MSI_DATA_LEVEL_ASSERT (1 << MSI_DATA_LEVEL_SHIFT) | |
23 | ||
24 | #define MSI_DATA_TRIGGER_SHIFT 15 | |
25 | #define MSI_DATA_TRIGGER_EDGE (0 << MSI_DATA_TRIGGER_SHIFT) | |
26 | #define MSI_DATA_TRIGGER_LEVEL (1 << MSI_DATA_TRIGGER_SHIFT) | |
27 | ||
28 | /* | |
29 | * Shift/mask fields for msi address | |
30 | */ | |
31 | ||
32 | #define MSI_ADDR_BASE_HI 0 | |
33 | #define MSI_ADDR_BASE_LO 0xfee00000 | |
34 | ||
35 | #define MSI_ADDR_DEST_MODE_SHIFT 2 | |
36 | #define MSI_ADDR_DEST_MODE_PHYSICAL (0 << MSI_ADDR_DEST_MODE_SHIFT) | |
37 | #define MSI_ADDR_DEST_MODE_LOGICAL (1 << MSI_ADDR_DEST_MODE_SHIFT) | |
38 | ||
39 | #define MSI_ADDR_REDIRECTION_SHIFT 3 | |
40 | #define MSI_ADDR_REDIRECTION_CPU (0 << MSI_ADDR_REDIRECTION_SHIFT) /* dedicated cpu */ | |
41 | #define MSI_ADDR_REDIRECTION_LOWPRI (1 << MSI_ADDR_REDIRECTION_SHIFT) /* lowest priority */ | |
42 | ||
43 | #define MSI_ADDR_DEST_ID_SHIFT 12 | |
44 | #define MSI_ADDR_DEST_ID_MASK 0x00ffff0 | |
45 | #define MSI_ADDR_DEST_ID(dest) (((dest) << MSI_ADDR_DEST_ID_SHIFT) & MSI_ADDR_DEST_ID_MASK) | |
46 | ||
47 | #endif /* ASM_MSIDEF_H */ |