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Re: [patch V2 34/46] PCI/MSI: Make arch_.*_msi_irq[s] fallbacks selectable
- To: Marc Zyngier <maz@xxxxxxxxxx>
- From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
- Date: Wed, 26 Aug 2020 23:27:41 +0200
- Cc: LKML <linux-kernel@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, Joerg Roedel <joro@xxxxxxxxxx>, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>, Jon Derrick <jonathan.derrick@xxxxxxxxx>, Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>, Wei Liu <wei.liu@xxxxxxxxxx>, "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx>, Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>, Steve Wahl <steve.wahl@xxxxxxx>, Dimitri Sivanich <sivanich@xxxxxxx>, Russ Anderson <rja@xxxxxxx>, linux-pci@xxxxxxxxxxxxxxx, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Juergen Gross <jgross@xxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, "Rafael J. Wysocki" <rafael@xxxxxxxxxx>, Megha Dey <megha.dey@xxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxxxxxx>, Dave Jiang <dave.jiang@xxxxxxxxx>, Alex Williamson <alex.williamson@xxxxxxxxxx>, Jacob Pan <jacob.jun.pan@xxxxxxxxx>, Baolu Lu <baolu.lu@xxxxxxxxx>, Kevin Tian <kevin.tian@xxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>
- Delivery-date: Wed, 26 Aug 2020 21:27:47 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Wed, Aug 26 2020 at 22:14, Marc Zyngier wrote:
> On Wed, 26 Aug 2020 12:17:02 +0100,
> Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>> @@ -103,6 +105,7 @@ config PCIE_XILINX_CPM
>> bool "Xilinx Versal CPM host bridge support"
>> depends on ARCH_ZYNQMP || COMPILE_TEST
>> select PCI_HOST_COMMON
>> + select PCI_MSI_ARCH_FALLBACKS
>
> This guy actually doesn't implement MSIs at all (it seems to delegate
> them to an ITS present in the system, if I read the DT binding
> correctly). However its older brother from the same silicon dealer
> seems to need it. The patchlet below should fix it.
Gah, at some point my eyes went squared and I lost track..
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