arch/x86/include/asm/lapic.h

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