drivers/pci/msi.h

   1 /*
   2  * Copyright (C) 2003-2004 Intel
   3  * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
   4  */
   5
   6 #ifndef MSI_H
   7 #define MSI_H
   8
   9 #define PCI_MSIX_ENTRY_SIZE             16
  10 #define  PCI_MSIX_ENTRY_LOWER_ADDR      0
  11 #define  PCI_MSIX_ENTRY_UPPER_ADDR      4
  12 #define  PCI_MSIX_ENTRY_DATA            8
  13 #define  PCI_MSIX_ENTRY_VECTOR_CTRL     12
  14
  15 #define msi_control_reg(base)           (base + PCI_MSI_FLAGS)
  16 #define msi_lower_address_reg(base)     (base + PCI_MSI_ADDRESS_LO)
  17 #define msi_upper_address_reg(base)     (base + PCI_MSI_ADDRESS_HI)
  18 #define msi_data_reg(base, is64bit)     \
  19         (base + ((is64bit == 1) ? PCI_MSI_DATA_64 : PCI_MSI_DATA_32))
  20 #define msi_mask_reg(base, is64bit)     \
  21         (base + ((is64bit == 1) ? PCI_MSI_MASK_64 : PCI_MSI_MASK_32))
  22 #define is_64bit_address(control)       (!!(control & PCI_MSI_FLAGS_64BIT))
  23 #define is_mask_bit_support(control)    (!!(control & PCI_MSI_FLAGS_MASKBIT))
  24
  25 #define msix_table_offset_reg(base)     (base + 0x04)
  26 #define msix_pba_offset_reg(base)       (base + 0x08)
  27 #define msix_table_size(control)        ((control & PCI_MSIX_FLAGS_QSIZE)+1)
  28 #define multi_msix_capable(control)     msix_table_size((control))
  29
  30 #endif /* MSI_H */