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Re: [PATCH 4/7] xen/arm: add support for R-Car Gen4 PCI host controller
- To: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Mykyta Poturai <Mykyta_Poturai@xxxxxxxx>
- Date: Fri, 7 Mar 2025 08:48:37 +0000
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- Cc: Oleksandr Andrushchenko <Oleksandr_Andrushchenko@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Fri, 07 Mar 2025 08:48:46 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Thread-index: AQHbhp0OJEwwd7KbIUWidoI1k6AKJ7NmiwSAgADjMIA=
- Thread-topic: [PATCH 4/7] xen/arm: add support for R-Car Gen4 PCI host controller
On 06.03.25 21:15, Stewart Hildebrand wrote:
> On 2/24/25 04:18, Mykyta Poturai wrote:
>> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
>>
>> Add support for Renesas R-Car Gen4 PCI host controller.
>> S4 and V4H SoCs are supported.
>> Implement config read/write operations for both root and child buses.
>> For accessing the child bus, iATU is used for address translation.
>>
>> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@xxxxxxxx>
>> Signed-off-by: Mykyta Poturai <mykyta_poturai@xxxxxxxx>
>> ---
>> xen/arch/arm/pci/Makefile | 1 +
>> xen/arch/arm/pci/pci-host-rcar4.c | 529 ++++++++++++++++++++++++++++++
>> 2 files changed, 530 insertions(+)
>> create mode 100644 xen/arch/arm/pci/pci-host-rcar4.c
>
> Can any parts of this potentially be reused for other designware-based
> PCIe controllers? If so, could those parts be moved to a separate file?
Great idea! I will try to do a separation similar to how it's done in Linux.
--
Mykyta
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