tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 */