bc2b2d152051b83c714185f4da309754a974f2a6
[oweals/u-boot.git] / arch / x86 / include / asm / lapic.h
1 /*
2  * From coreboot file of same name
3  *
4  * Copyright (C) 2014 Google, Inc
5  *
6  * SPDX-License-Identifier:     GPL-2.0
7  */
8
9 #ifndef _ARCH_ASM_LAPIC_H
10 #define _ARCH_ASM_LAPIC_H
11
12 #define LAPIC_DEFAULT_BASE              0xfee00000
13
14 #define LAPIC_ID                        0x020
15 #define LAPIC_LVR                       0x030
16
17 #define LAPIC_TASKPRI                   0x080
18 #define LAPIC_TPRI_MASK                 0xff
19
20 #define LAPIC_RRR                       0x0c0
21
22 #define LAPIC_SPIV                      0x0f0
23 #define LAPIC_SPIV_ENABLE               0x100
24
25 #define LAPIC_ICR                       0x300
26 #define LAPIC_DEST_SELF                 0x40000
27 #define LAPIC_DEST_ALLINC               0x80000
28 #define LAPIC_DEST_ALLBUT               0xc0000
29 #define LAPIC_ICR_RR_MASK               0x30000
30 #define LAPIC_ICR_RR_INVALID            0x00000
31 #define LAPIC_ICR_RR_INPROG             0x10000
32 #define LAPIC_ICR_RR_VALID              0x20000
33 #define LAPIC_INT_LEVELTRIG             0x08000
34 #define LAPIC_INT_ASSERT                0x04000
35 #define LAPIC_ICR_BUSY                  0x01000
36 #define LAPIC_DEST_LOGICAL              0x00800
37 #define LAPIC_DM_FIXED                  0x00000
38 #define LAPIC_DM_LOWEST                 0x00100
39 #define LAPIC_DM_SMI                    0x00200
40 #define LAPIC_DM_REMRD                  0x00300
41 #define LAPIC_DM_NMI                    0x00400
42 #define LAPIC_DM_INIT                   0x00500
43 #define LAPIC_DM_STARTUP                0x00600
44 #define LAPIC_DM_EXTINT                 0x00700
45 #define LAPIC_VECTOR_MASK               0x000ff
46
47 #define LAPIC_ICR2                      0x310
48 #define GET_LAPIC_DEST_FIELD(x)         (((x) >> 24) & 0xff)
49 #define SET_LAPIC_DEST_FIELD(x)         ((x) << 24)
50
51 #define LAPIC_LVT0                      0x350
52 #define LAPIC_LVT1                      0x360
53 #define LAPIC_LVT_MASKED                (1 << 16)
54 #define LAPIC_LVT_LEVEL_TRIGGER         (1 << 15)
55 #define LAPIC_LVT_REMOTE_IRR            (1 << 14)
56 #define LAPIC_INPUT_POLARITY            (1 << 13)
57 #define LAPIC_SEND_PENDING              (1 << 12)
58 #define LAPIC_LVT_RESERVED_1            (1 << 11)
59 #define LAPIC_DELIVERY_MODE_MASK        (7 << 8)
60 #define LAPIC_DELIVERY_MODE_FIXED       (0 << 8)
61 #define LAPIC_DELIVERY_MODE_NMI         (4 << 8)
62 #define LAPIC_DELIVERY_MODE_EXTINT      (7 << 8)
63
64 unsigned long lapic_read(unsigned long reg);
65
66 void lapic_write(unsigned long reg, unsigned long v);
67
68 void enable_lapic(void);
69
70 void disable_lapic(void);
71
72 unsigned long lapicid(void);
73
74 int lapic_remote_read(int apicid, int reg, unsigned long *pvalue);
75
76 void lapic_setup(void);
77
78 #endif