root/include/asm-x86/msidef.h

INCLUDED FROM

#ifndef ASM_X86__MSIDEF_H
#define ASM_X86__MSIDEF_H

/*
 * Constants for Intel APIC based MSI messages.
 */

/*
 * Shifts for MSI data
 */

#define MSI_DATA_VECTOR_SHIFT           0
#define  MSI_DATA_VECTOR_MASK           0x000000ff
#define  MSI_DATA_VECTOR(v)             (((v) << MSI_DATA_VECTOR_SHIFT) & \
                                         MSI_DATA_VECTOR_MASK)

#define MSI_DATA_DELIVERY_MODE_SHIFT    8
#define  MSI_DATA_DELIVERY_FIXED        (0 << MSI_DATA_DELIVERY_MODE_SHIFT)
#define  MSI_DATA_DELIVERY_LOWPRI       (1 << MSI_DATA_DELIVERY_MODE_SHIFT)

#define MSI_DATA_LEVEL_SHIFT            14
#define  MSI_DATA_LEVEL_DEASSERT        (0 << MSI_DATA_LEVEL_SHIFT)
#define  MSI_DATA_LEVEL_ASSERT          (1 << MSI_DATA_LEVEL_SHIFT)

#define MSI_DATA_TRIGGER_SHIFT          15
#define  MSI_DATA_TRIGGER_EDGE          (0 << MSI_DATA_TRIGGER_SHIFT)
#define  MSI_DATA_TRIGGER_LEVEL         (1 << MSI_DATA_TRIGGER_SHIFT)

/*
 * Shift/mask fields for msi address
 */

#define MSI_ADDR_BASE_HI                0
#define MSI_ADDR_BASE_LO                0xfee00000

#define MSI_ADDR_DEST_MODE_SHIFT        2
#define  MSI_ADDR_DEST_MODE_PHYSICAL    (0 << MSI_ADDR_DEST_MODE_SHIFT)
#define  MSI_ADDR_DEST_MODE_LOGICAL     (1 << MSI_ADDR_DEST_MODE_SHIFT)

#define MSI_ADDR_REDIRECTION_SHIFT      3
#define  MSI_ADDR_REDIRECTION_CPU       (0 << MSI_ADDR_REDIRECTION_SHIFT)
                                        /* dedicated cpu */
#define  MSI_ADDR_REDIRECTION_LOWPRI    (1 << MSI_ADDR_REDIRECTION_SHIFT)
                                        /* lowest priority */

#define MSI_ADDR_DEST_ID_SHIFT          12
#define  MSI_ADDR_DEST_ID_MASK          0x00ffff0
#define  MSI_ADDR_DEST_ID(dest)         (((dest) << MSI_ADDR_DEST_ID_SHIFT) & \
                                         MSI_ADDR_DEST_ID_MASK)

#define MSI_ADDR_IR_EXT_INT             (1 << 4)
#define MSI_ADDR_IR_SHV                 (1 << 3)
#define MSI_ADDR_IR_INDEX1(index)       ((index & 0x8000) >> 13)
#define MSI_ADDR_IR_INDEX2(index)       ((index & 0x7fff) << 5)
#endif /* ASM_X86__MSIDEF_H */