LXR linux/arch/x86/include/asm/msidef.h

   1#ifndef _ASM_X86_MSIDEF_H
   2#define _ASM_X86_MSIDEF_H
   3
   4/*
   5 * Constants for Intel APIC based MSI messages.
   6 */
   7
   8/*
   9 * Shifts for MSI data
  10 */
  11
  12#define MSI_DATA_VECTOR_SHIFT           0
  13#define  MSI_DATA_VECTOR_MASK           0x000000ff
  14#define  MSI_DATA_VECTOR(v)             (((v) << MSI_DATA_VECTOR_SHIFT) & \
  15                                         MSI_DATA_VECTOR_MASK)
  16
  17#define MSI_DATA_DELIVERY_MODE_SHIFT    8
  18#define  MSI_DATA_DELIVERY_FIXED        (0 << MSI_DATA_DELIVERY_MODE_SHIFT)
  19#define  MSI_DATA_DELIVERY_LOWPRI       (1 << MSI_DATA_DELIVERY_MODE_SHIFT)
  20
  21#define MSI_DATA_LEVEL_SHIFT            14
  22#define  MSI_DATA_LEVEL_DEASSERT        (0 << MSI_DATA_LEVEL_SHIFT)
  23#define  MSI_DATA_LEVEL_ASSERT          (1 << MSI_DATA_LEVEL_SHIFT)
  24
  25#define MSI_DATA_TRIGGER_SHIFT          15
  26#define  MSI_DATA_TRIGGER_EDGE          (0 << MSI_DATA_TRIGGER_SHIFT)
  27#define  MSI_DATA_TRIGGER_LEVEL         (1 << MSI_DATA_TRIGGER_SHIFT)
  28
  29/*
  30 * Shift/mask fields for msi address
  31 */
  32
  33#define MSI_ADDR_BASE_HI                0
  34#define MSI_ADDR_BASE_LO                0xfee00000
  35
  36#define MSI_ADDR_DEST_MODE_SHIFT        2
  37#define  MSI_ADDR_DEST_MODE_PHYSICAL    (0 << MSI_ADDR_DEST_MODE_SHIFT)
  38#define  MSI_ADDR_DEST_MODE_LOGICAL     (1 << MSI_ADDR_DEST_MODE_SHIFT)
  39
  40#define MSI_ADDR_REDIRECTION_SHIFT      3
  41#define  MSI_ADDR_REDIRECTION_CPU       (0 << MSI_ADDR_REDIRECTION_SHIFT)
  42                                        /* dedicated cpu */
  43#define  MSI_ADDR_REDIRECTION_LOWPRI    (1 << MSI_ADDR_REDIRECTION_SHIFT)
  44                                        /* lowest priority */
  45
  46#define MSI_ADDR_DEST_ID_SHIFT          12
  47#define  MSI_ADDR_DEST_ID_MASK          0x00ffff0
  48#define  MSI_ADDR_DEST_ID(dest)         (((dest) << MSI_ADDR_DEST_ID_SHIFT) & \
  49                                         MSI_ADDR_DEST_ID_MASK)
  50#define MSI_ADDR_EXT_DEST_ID(dest)      ((dest) & 0xffffff00)
  51
  52#define MSI_ADDR_IR_EXT_INT             (1 << 4)
  53#define MSI_ADDR_IR_SHV                 (1 << 3)
  54#define MSI_ADDR_IR_INDEX1(index)       ((index & 0x8000) >> 13)
  55#define MSI_ADDR_IR_INDEX2(index)       ((index & 0x7fff) << 5)
  56#endif /* _ASM_X86_MSIDEF_H */
  57