]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/pci/msi.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
[net-next-2.6.git] / drivers / pci / msi.h
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1da177e4
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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
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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
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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) \
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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))
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22#define is_64bit_address(control) (!!(control & PCI_MSI_FLAGS_64BIT))
23#define is_mask_bit_support(control) (!!(control & PCI_MSI_FLAGS_MASKBIT))
1da177e4 24
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25#define msix_table_offset_reg(base) (base + PCI_MSIX_TABLE)
26#define msix_pba_offset_reg(base) (base + PCI_MSIX_PBA)
1da177e4 27#define msix_table_size(control) ((control & PCI_MSIX_FLAGS_QSIZE)+1)
04846b5b 28#define multi_msix_capable(control) msix_table_size((control))
1da177e4 29
1da177e4 30#endif /* MSI_H */