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 63unsigned long lapic_read(unsigned long reg); 64 65void lapic_write(unsigned long reg, unsigned long v); 66 67void enable_lapic(void); 68 69void disable_lapic(void); 70 71unsigned long lapicid(void); 72 73int lapic_remote_read(int apicid, int reg, unsigned long *pvalue); 74 75void lapic_setup(void); 76 77#endif 78