msidef.h

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#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_EXT_DEST_ID(dest)  ((dest) & 0xffffff00)

#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 */