On Mon, 7 Jul 2025, Mykyta Poturai wrote:
> Introduce an additional private data field in `dw_pcie_priv` to allow
> vendors to store custom data without interfering with bridge->priv.
> Also add get/set pair to make accesing that private data less
> cumbersome.
>
> Signed-off-by: Mykyta Poturai <mykyta_potu...@epam.com>
Acked-by: Stefano Stabellini <sstabell...@kernel.org>
> ---
> xen/arch/arm/pci/pci-designware.c | 12 ++++++++++++
> xen/arch/arm/pci/pci-designware.h | 4 ++++
> 2 files changed, 16 insertions(+)
>
> diff --git a/xen/arch/arm/pci/pci-designware.c
> b/xen/arch/arm/pci/pci-designware.c
> index 47dd2dd4c0..0bd67524ac 100644
> --- a/xen/arch/arm/pci/pci-designware.c
> +++ b/xen/arch/arm/pci/pci-designware.c
> @@ -403,3 +403,15 @@ dw_pcie_host_probe(struct dt_device_node *dev, const
> void *data,
>
> return bridge;
> }
> +
> +void *dw_pcie_get_priv(struct pci_host_bridge *bridge)
> +{
> + struct dw_pcie_priv *priv = bridge->priv;
> + return priv->priv;
> +}
> +
> +void dw_pcie_set_priv(struct pci_host_bridge *bridge, void *other)
> +{
> + struct dw_pcie_priv *priv = bridge->priv;
> + priv->priv = other;
> +}
> diff --git a/xen/arch/arm/pci/pci-designware.h
> b/xen/arch/arm/pci/pci-designware.h
> index 7efb1dc9a2..b9deb3b138 100644
> --- a/xen/arch/arm/pci/pci-designware.h
> +++ b/xen/arch/arm/pci/pci-designware.h
> @@ -66,8 +66,12 @@ struct dw_pcie_priv {
> bool iatu_unroll_enabled;
> void __iomem *atu_base;
> unsigned int version;
> + void *priv;
> };
>
> +void *dw_pcie_get_priv(struct pci_host_bridge *bridge);
> +void dw_pcie_set_priv(struct pci_host_bridge *bridge, void *other);
> +
> void dw_pcie_set_version(struct pci_host_bridge *bridge, unsigned int
> version);
>
> void __iomem *dw_pcie_child_map_bus(struct pci_host_bridge *bridge,
> --
> 2.34.1
>
