Re: [RFC PATCH 0/4] ACPI based PCI host driver with generic ECAM

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On Fri, Mar 18, 2016 at 1:48 AM, Jayachandran C <jchandra@xxxxxxxxxxxx> wrote:
> Hi Bjorn,
>
> Here is a new patchset for the ACPI PCI controller driver based on the
> earlier discussion[1].
>
> The first two patches in the patchset implements pci/ecam.c for generic
> config space access and uses it in pci-host-generic.c and related files.
>
> The third patch implements the ACPI PCI host driver using the same ecam
> access functions. The fourth patch adds the implementation of raw
> operations.
>
> I have not used the pci_mmcfg_list or the region definitions from x86,
> but have used a much simpler approach here.
>
> This should apply cleanly on top of the current pci next tree, and
> can be reviewed as a patchset.  To use it on ARM64, we need to pull
> in about 7 patches more from Tomasz patchset that fixes various
> issues (like stub code in arm64 pci.c, ACPI companion setup,
> domain number assignment, IO resources fixup etc.).
>
> If you are okay with this approach, I will work with Tomasz and
> post the full patchset.
>
> This has been tested on qemu with OVMF for the ACPI part and with
> device tree for pci-host-generic code.

The full patchset is available at https://github.com/jchandra-brcm/linux.git on
branch arm64-acpi-pci, if anyone wants to try it.

Comments, suggestions and testing would be welcome.

Thanks,
JC.
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