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 78