1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_MSIDEF_H
3#define _ASM_X86_MSIDEF_H
4
5/*
6 * Constants for Intel APIC based MSI messages.
7 */
8
9/*
10 * Shifts for MSI data
11 */
12
13#define MSI_DATA_VECTOR_SHIFT		0
14#define  MSI_DATA_VECTOR_MASK		0x000000ff
15#define	 MSI_DATA_VECTOR(v)		(((v) << MSI_DATA_VECTOR_SHIFT) & \
16					 MSI_DATA_VECTOR_MASK)
17
18#define MSI_DATA_DELIVERY_MODE_SHIFT	8
19#define  MSI_DATA_DELIVERY_FIXED	(0 << MSI_DATA_DELIVERY_MODE_SHIFT)
20#define  MSI_DATA_DELIVERY_LOWPRI	(1 << MSI_DATA_DELIVERY_MODE_SHIFT)
21
22#define MSI_DATA_LEVEL_SHIFT		14
23#define	 MSI_DATA_LEVEL_DEASSERT	(0 << MSI_DATA_LEVEL_SHIFT)
24#define	 MSI_DATA_LEVEL_ASSERT		(1 << MSI_DATA_LEVEL_SHIFT)
25
26#define MSI_DATA_TRIGGER_SHIFT		15
27#define  MSI_DATA_TRIGGER_EDGE		(0 << MSI_DATA_TRIGGER_SHIFT)
28#define  MSI_DATA_TRIGGER_LEVEL		(1 << MSI_DATA_TRIGGER_SHIFT)
29
30/*
31 * Shift/mask fields for msi address
32 */
33
34#define MSI_ADDR_BASE_HI		0
35#define MSI_ADDR_BASE_LO		0xfee00000
36
37#define MSI_ADDR_DEST_MODE_SHIFT	2
38#define  MSI_ADDR_DEST_MODE_PHYSICAL	(0 << MSI_ADDR_DEST_MODE_SHIFT)
39#define	 MSI_ADDR_DEST_MODE_LOGICAL	(1 << MSI_ADDR_DEST_MODE_SHIFT)
40
41#define MSI_ADDR_REDIRECTION_SHIFT	3
42#define  MSI_ADDR_REDIRECTION_CPU	(0 << MSI_ADDR_REDIRECTION_SHIFT)
43					/* dedicated cpu */
44#define  MSI_ADDR_REDIRECTION_LOWPRI	(1 << MSI_ADDR_REDIRECTION_SHIFT)
45					/* lowest priority */
46
47#define MSI_ADDR_DEST_ID_SHIFT		12
48#define	 MSI_ADDR_DEST_ID_MASK		0x00ffff0
49#define  MSI_ADDR_DEST_ID(dest)		(((dest) << MSI_ADDR_DEST_ID_SHIFT) & \
50					 MSI_ADDR_DEST_ID_MASK)
51#define MSI_ADDR_EXT_DEST_ID(dest)	((dest) & 0xffffff00)
52
53#define MSI_ADDR_IR_EXT_INT		(1 << 4)
54#define MSI_ADDR_IR_SHV			(1 << 3)
55#define MSI_ADDR_IR_INDEX1(index)	((index & 0x8000) >> 13)
56#define MSI_ADDR_IR_INDEX2(index)	((index & 0x7fff) << 5)
57#endif /* _ASM_X86_MSIDEF_H */
58