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PCI MSI: Add support for multiple MSI
Add the new API pci_enable_msi_block() to allow drivers to request multiple MSI and reimplement pci_enable_msi in terms of pci_enable_msi_block. Ensure that the architecture back ends don't have to know about multiple MSI. Signed-off-by:Matthew Wilcox <willy@linux.intel.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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- Documentation/PCI/MSI-HOWTO.txt 39 additions, 6 deletionsDocumentation/PCI/MSI-HOWTO.txt
- arch/powerpc/kernel/msi.c 4 additions, 0 deletionsarch/powerpc/kernel/msi.c
- arch/x86/kernel/io_apic.c 4 additions, 0 deletionsarch/x86/kernel/io_apic.c
- drivers/pci/msi.c 64 additions, 27 deletionsdrivers/pci/msi.c
- drivers/pci/msi.h 0 additions, 6 deletionsdrivers/pci/msi.h
- include/linux/msi.h 1 addition, 0 deletionsinclude/linux/msi.h
- include/linux/pci.h 4 additions, 2 deletionsinclude/linux/pci.h
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