projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | ||
| 1da177e4 | 9 | #define PCI_MSIX_ENTRY_SIZE 16 |
| 70549ad9 GKH |
10 | #define PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET 0 |
| 11 | #define PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET 4 | |
| 12 | #define PCI_MSIX_ENTRY_DATA_OFFSET 8 | |
| 13 | #define PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET 12 | |
| 1da177e4 LT |
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 | ( (is64bit == 1) ? base+PCI_MSI_DATA_64 : base+PCI_MSI_DATA_32 ) | |
| 20 | #define msi_mask_bits_reg(base, is64bit) \ | |
| 21 | ( (is64bit == 1) ? base+PCI_MSI_MASK_BIT : base+PCI_MSI_MASK_BIT-4) | |
| 22 | #define msi_disable(control) control &= ~PCI_MSI_FLAGS_ENABLE | |
| 23 | #define multi_msi_capable(control) \ | |
| 24 | (1 << ((control & PCI_MSI_FLAGS_QMASK) >> 1)) | |
| 25 | #define multi_msi_enable(control, num) \ | |
| 26 | control |= (((num >> 1) << 4) & PCI_MSI_FLAGS_QSIZE); | |
| dd159eec EB |
27 | #define is_64bit_address(control) (!!(control & PCI_MSI_FLAGS_64BIT)) |
| 28 | #define is_mask_bit_support(control) (!!(control & PCI_MSI_FLAGS_MASKBIT)) | |
| 1da177e4 LT |
29 | #define msi_enable(control, num) multi_msi_enable(control, num); \ |
| 30 | control |= PCI_MSI_FLAGS_ENABLE | |
| 31 | ||
| 1da177e4 LT |
32 | #define msix_table_offset_reg(base) (base + 0x04) |
| 33 | #define msix_pba_offset_reg(base) (base + 0x08) | |
| 34 | #define msix_enable(control) control |= PCI_MSIX_FLAGS_ENABLE | |
| 35 | #define msix_disable(control) control &= ~PCI_MSIX_FLAGS_ENABLE | |
| 36 | #define msix_table_size(control) ((control & PCI_MSIX_FLAGS_QSIZE)+1) | |
| 37 | #define multi_msix_capable msix_table_size | |
| 38 | #define msix_unmask(address) (address & ~PCI_MSIX_FLAGS_BITMASK) | |
| 39 | #define msix_mask(address) (address | PCI_MSIX_FLAGS_BITMASK) | |
| 40 | #define msix_is_pending(address) (address & PCI_MSIX_FLAGS_PENDMASK) | |
| 41 | ||
| 1da177e4 | 42 | #endif /* MSI_H */ |