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H. Peter Anvin1965aae2008-10-22 22:26:29 -07001#ifndef _ASM_X86_MSIDEF_H
2#define _ASM_X86_MSIDEF_H
Eric W. Biederman2d3fcc12006-10-04 02:16:43 -07003
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
Joe Perches934902b2008-03-23 01:02:50 -070014#define MSI_DATA_VECTOR(v) (((v) << MSI_DATA_VECTOR_SHIFT) & \
15 MSI_DATA_VECTOR_MASK)
Eric W. Biederman2d3fcc12006-10-04 02:16:43 -070016
17#define MSI_DATA_DELIVERY_MODE_SHIFT 8
18#define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_MODE_SHIFT)
19#define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_MODE_SHIFT)
20
21#define MSI_DATA_LEVEL_SHIFT 14
22#define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT)
23#define MSI_DATA_LEVEL_ASSERT (1 << MSI_DATA_LEVEL_SHIFT)
24
25#define MSI_DATA_TRIGGER_SHIFT 15
26#define MSI_DATA_TRIGGER_EDGE (0 << MSI_DATA_TRIGGER_SHIFT)
27#define MSI_DATA_TRIGGER_LEVEL (1 << MSI_DATA_TRIGGER_SHIFT)
28
29/*
30 * Shift/mask fields for msi address
31 */
32
33#define MSI_ADDR_BASE_HI 0
34#define MSI_ADDR_BASE_LO 0xfee00000
35
36#define MSI_ADDR_DEST_MODE_SHIFT 2
37#define MSI_ADDR_DEST_MODE_PHYSICAL (0 << MSI_ADDR_DEST_MODE_SHIFT)
38#define MSI_ADDR_DEST_MODE_LOGICAL (1 << MSI_ADDR_DEST_MODE_SHIFT)
39
40#define MSI_ADDR_REDIRECTION_SHIFT 3
Joe Perches934902b2008-03-23 01:02:50 -070041#define MSI_ADDR_REDIRECTION_CPU (0 << MSI_ADDR_REDIRECTION_SHIFT)
42 /* dedicated cpu */
43#define MSI_ADDR_REDIRECTION_LOWPRI (1 << MSI_ADDR_REDIRECTION_SHIFT)
44 /* lowest priority */
Eric W. Biederman2d3fcc12006-10-04 02:16:43 -070045
46#define MSI_ADDR_DEST_ID_SHIFT 12
47#define MSI_ADDR_DEST_ID_MASK 0x00ffff0
Joe Perches934902b2008-03-23 01:02:50 -070048#define MSI_ADDR_DEST_ID(dest) (((dest) << MSI_ADDR_DEST_ID_SHIFT) & \
49 MSI_ADDR_DEST_ID_MASK)
Suresh Siddha9d783ba2009-03-16 17:04:55 -070050#define MSI_ADDR_EXT_DEST_ID(dest) ((dest) & 0xffffff00)
Eric W. Biederman2d3fcc12006-10-04 02:16:43 -070051
Suresh Siddha75c46fa2008-07-10 11:16:57 -070052#define MSI_ADDR_IR_EXT_INT (1 << 4)
53#define MSI_ADDR_IR_SHV (1 << 3)
54#define MSI_ADDR_IR_INDEX1(index) ((index & 0x8000) >> 13)
55#define MSI_ADDR_IR_INDEX2(index) ((index & 0x7fff) << 5)
H. Peter Anvin1965aae2008-10-22 22:26:29 -070056#endif /* _ASM_X86_MSIDEF_H */