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
