Aleksandr Bezzubikov 7498bd6058 PCI: shpchp: Enable bridge bus mastering if MSI is enabled ...

commit 48b79a14505349a29b3e20f03619ada9b33c4b17 upstream.

An SHPC may generate MSIs to notify software about slot or controller
events (SHPC spec r1.0, sec 4.7).  A PCI device can only generate an MSI if
it has bus mastering enabled.

Enable bus mastering if the bridge contains an SHPC that uses MSI for event
notifications.

Signed-off-by: Aleksandr Bezzubikov <zuban32s@gmail.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-09-27 11:00:16 +02:00

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acpi_pcihp.c

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acpiphp_core.c

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acpiphp_glue.c

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acpiphp_ibm.c

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acpiphp.h

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cpci_hotplug_core.c

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cpci_hotplug_pci.c

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cpci_hotplug.h

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cpcihp_generic.c

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cpcihp_zt5550.c

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cpcihp_zt5550.h

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cpqphp_core.c

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cpqphp_ctrl.c

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cpqphp_nvram.c

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cpqphp_nvram.h

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cpqphp_pci.c

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cpqphp_sysfs.c

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cpqphp.h

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ibmphp_core.c

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ibmphp_ebda.c

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ibmphp_hpc.c

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ibmphp_pci.c

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ibmphp_res.c

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ibmphp.h

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Kconfig

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Makefile

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pci_hotplug_core.c

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pciehp_core.c

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pciehp_ctrl.c

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pciehp_hpc.c

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pciehp_pci.c

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pciehp.h

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pcihp_skeleton.c

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rpadlpar_core.c

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rpadlpar_sysfs.c

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rpadlpar.h

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rpaphp_core.c

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rpaphp_pci.c

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rpaphp_slot.c

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rpaphp.h

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s390_pci_hpc.c

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sgi_hotplug.c

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shpchp_core.c

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shpchp_ctrl.c

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shpchp_hpc.c

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shpchp_pci.c

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shpchp_sysfs.c

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shpchp.h

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