diff options
Diffstat (limited to 'drivers/pci/msi.h')
| -rw-r--r-- | drivers/pci/msi.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/pci/msi.h b/drivers/pci/msi.h new file mode 100644 index 00000000..65c42f80 --- /dev/null +++ b/drivers/pci/msi.h @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2003-2004 Intel + * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) + */ + +#ifndef MSI_H +#define MSI_H + +#define msi_control_reg(base) (base + PCI_MSI_FLAGS) +#define msi_lower_address_reg(base) (base + PCI_MSI_ADDRESS_LO) +#define msi_upper_address_reg(base) (base + PCI_MSI_ADDRESS_HI) +#define msi_data_reg(base, is64bit) \ + (base + ((is64bit == 1) ? PCI_MSI_DATA_64 : PCI_MSI_DATA_32)) +#define msi_mask_reg(base, is64bit) \ + (base + ((is64bit == 1) ? PCI_MSI_MASK_64 : PCI_MSI_MASK_32)) +#define is_64bit_address(control) (!!(control & PCI_MSI_FLAGS_64BIT)) +#define is_mask_bit_support(control) (!!(control & PCI_MSI_FLAGS_MASKBIT)) + +#define msix_table_offset_reg(base) (base + PCI_MSIX_TABLE) +#define msix_pba_offset_reg(base) (base + PCI_MSIX_PBA) +#define msix_table_size(control) ((control & PCI_MSIX_FLAGS_QSIZE)+1) +#define multi_msix_capable(control) msix_table_size((control)) + +#endif /* MSI_H */ |