include/asm-i386/msidef.h

   1 #ifndef ASM_MSIDEF_H
   2 #define ASM_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) & MSI_DATA_VECTOR_MASK)
  15
  16 #define MSI_DATA_DELIVERY_MODE_SHIFT    8
  17 #define  MSI_DATA_DELIVERY_FIXED        (0 << MSI_DATA_DELIVERY_MODE_SHIFT)
  18 #define  MSI_DATA_DELIVERY_LOWPRI       (1 << MSI_DATA_DELIVERY_MODE_SHIFT)
  19
  20 #define MSI_DATA_LEVEL_SHIFT            14
  21 #define  MSI_DATA_LEVEL_DEASSERT        (0 << MSI_DATA_LEVEL_SHIFT)
  22 #define  MSI_DATA_LEVEL_ASSERT          (1 << MSI_DATA_LEVEL_SHIFT)
  23
  24 #define MSI_DATA_TRIGGER_SHIFT          15
  25 #define  MSI_DATA_TRIGGER_EDGE          (0 << MSI_DATA_TRIGGER_SHIFT)
  26 #define  MSI_DATA_TRIGGER_LEVEL         (1 << MSI_DATA_TRIGGER_SHIFT)
  27
  28 /*
  29  * Shift/mask fields for msi address
  30  */
  31
  32 #define MSI_ADDR_BASE_HI                0
  33 #define MSI_ADDR_BASE_LO                0xfee00000
  34
  35 #define MSI_ADDR_DEST_MODE_SHIFT        2
  36 #define  MSI_ADDR_DEST_MODE_PHYSICAL    (0 << MSI_ADDR_DEST_MODE_SHIFT)
  37 #define  MSI_ADDR_DEST_MODE_LOGICAL     (1 << MSI_ADDR_DEST_MODE_SHIFT)
  38
  39 #define MSI_ADDR_REDIRECTION_SHIFT      3
  40 #define  MSI_ADDR_REDIRECTION_CPU       (0 << MSI_ADDR_REDIRECTION_SHIFT) /* dedicated cpu */
  41 #define  MSI_ADDR_REDIRECTION_LOWPRI    (1 << MSI_ADDR_REDIRECTION_SHIFT) /* lowest priority */
  42
  43 #define MSI_ADDR_DEST_ID_SHIFT          12
  44 #define  MSI_ADDR_DEST_ID_MASK          0x00ffff0
  45 #define  MSI_ADDR_DEST_ID(dest)         (((dest) << MSI_ADDR_DEST_ID_SHIFT) & MSI_ADDR_DEST_ID_MASK)
  46
  47 #endif /* ASM_MSIDEF_H */