This series is aimed to conserve on othewise wasted interrupt resources for 10 of 16 unused MSI vectors for AHCI devices on Intel chipsets. Changes from v1: - roundup_pow_of_two() and is_power_of_2() functions used - patch 2/6 generic pci_get_msi_cap() interface introduced - patch 4/6 MMC reg. value used to initialize multiple MSIs; Fallback to single MSI mode is simplified - patch 5/6 sanity check for MRSM bit added Alexander Gordeev (6): 1/6 PCI/MSI: Introduce pci_enable_msi_block_part() interface 2/6 PCI/MSI: Factor out pci_get_msi_cap() interface 3/6 MSI/x86: Support pci_enable_msi_block_part() interface 4/6 AHCI: Conserve interrupts with pci_enable_msi_block_part() interface 5/6 AHCI: Check MRSM bit when multiple MSIs enabled 6/6 PCI/MSI: Get rid of pci_enable_msi_block_auto() interface Documentation/PCI/MSI-HOWTO.txt | 68 ++++++++++++++++------- arch/mips/pci/msi-octeon.c | 2 +- arch/powerpc/kernel/msi.c | 4 +- arch/s390/pci/pci.c | 2 +- arch/x86/include/asm/pci.h | 8 ++- arch/x86/include/asm/x86_init.h | 3 +- arch/x86/kernel/apic/io_apic.c | 3 +- drivers/ata/ahci.c | 60 ++++++++++++++------ drivers/ata/ahci.h | 1 + drivers/iommu/irq_remapping.c | 14 +++--- drivers/pci/msi.c | 115 ++++++++++++++++++++++----------------- include/linux/msi.h | 5 +- include/linux/pci.h | 13 ++++- 13 files changed, 188 insertions(+), 110 deletions(-) -- 1.7.7.6 -- Regards, Alexander Gordeev agordeev@xxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
