PCI: Add mask bit definition for MSI-X table
Then we can use it instead of magic number 1. Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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@ -168,8 +168,9 @@ static u32 __msix_mask_irq(struct msi_desc *desc, u32 flag)
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u32 mask_bits = desc->masked;
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unsigned offset = desc->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
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PCI_MSIX_ENTRY_VECTOR_CTRL;
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mask_bits &= ~1;
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mask_bits |= flag;
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mask_bits &= ~PCI_MSIX_ENTRY_CTRL_MASKBIT;
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if (flag)
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mask_bits |= PCI_MSIX_ENTRY_CTRL_MASKBIT;
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writel(mask_bits, desc->mask_base + offset);
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return mask_bits;
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@ -315,6 +315,7 @@
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#define PCI_MSIX_ENTRY_UPPER_ADDR 4
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#define PCI_MSIX_ENTRY_DATA 8
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#define PCI_MSIX_ENTRY_VECTOR_CTRL 12
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#define PCI_MSIX_ENTRY_CTRL_MASKBIT 1
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/* CompactPCI Hotswap Register */
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