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| author | Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> | 2009-04-20 10:54:59 +0900 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-06-11 12:04:06 -0700 |
| commit | 67b5db6502ddd27d65dea43bf036abbd82d0dfc9 (patch) | |
| tree | c48ed504f52682b88f91e82a50586013410edd7f /include | |
| parent | 64f039d3d7f574943165b1afb72ee25caa1a9a91 (diff) | |
| download | lwn-67b5db6502ddd27d65dea43bf036abbd82d0dfc9.tar.gz lwn-67b5db6502ddd27d65dea43bf036abbd82d0dfc9.zip | |
PCI MSI: Define PCI_MSI_MASK_32/64
Impact: cleanup, improve readability
Define PCI_MSI_MASK_32/64 for 32/64bit devices, instead of using
implicit offset (-4), "PCI_MSI_MASK_BIT - 4" and "PCI_MSI_MASK_BIT".
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pci_regs.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h index dcba7668e0cd..83b02f5a25b2 100644 --- a/include/linux/pci_regs.h +++ b/include/linux/pci_regs.h @@ -295,8 +295,9 @@ #define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */ #define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */ #define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */ +#define PCI_MSI_MASK_32 12 /* Mask bits register for 32-bit devices */ #define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */ -#define PCI_MSI_MASK_BIT 16 /* Mask bits register */ +#define PCI_MSI_MASK_64 16 /* Mask bits register for 64-bit devices */ /* MSI-X registers (these are at offset PCI_MSIX_FLAGS) */ #define PCI_MSIX_FLAGS 2 |