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 */