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 msi_control_reg(base)           (base + PCI_MSI_FLAGS)
  10 #define msi_lower_address_reg(base)     (base + PCI_MSI_ADDRESS_LO)
  11 #define msi_upper_address_reg(base)     (base + PCI_MSI_ADDRESS_HI)
  12 #define msi_data_reg(base, is64bit)     \
  13         (base + ((is64bit == 1) ? PCI_MSI_DATA_64 : PCI_MSI_DATA_32))
  14 #define msi_mask_reg(base, is64bit)     \
  15         (base + ((is64bit == 1) ? PCI_MSI_MASK_64 : PCI_MSI_MASK_32))
  16 #define is_64bit_address(control)       (!!(control & PCI_MSI_FLAGS_64BIT))
  17 #define is_mask_bit_support(control)    (!!(control & PCI_MSI_FLAGS_MASKBIT))
  18
  19 #define msix_table_offset_reg(base)     (base + PCI_MSIX_TABLE)
  20 #define msix_pba_offset_reg(base)       (base + PCI_MSIX_PBA)
  21 #define msix_table_size(control)        ((control & PCI_MSIX_FLAGS_QSIZE)+1)
  22 #define multi_msix_capable(control)     msix_table_size((control))
  23
  24 #endif /* MSI_H */