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