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charset="utf-8" From: Oleksandr Andrushchenko Some of the PCI host bridges require private data. Create a generic approach for that, so such bridges may request the private data to be allocated during initialization. Signed-off-by: Oleksandr Andrushchenko Signed-off-by: Mykyta Poturai --- v1->v2: * no change --- xen/arch/arm/include/asm/pci.h | 4 +++- xen/arch/arm/pci/pci-host-common.c | 18 +++++++++++++++++- xen/arch/arm/pci/pci-host-generic.c | 2 +- xen/arch/arm/pci/pci-host-zynqmp.c | 2 +- 4 files changed, 22 insertions(+), 4 deletions(-) diff --git a/xen/arch/arm/include/asm/pci.h b/xen/arch/arm/include/asm/pci.h index 7f77226c9b..44344ac8c1 100644 --- a/xen/arch/arm/include/asm/pci.h +++ b/xen/arch/arm/include/asm/pci.h @@ -66,6 +66,7 @@ struct pci_host_bridge { uint16_t segment; /* Segment number */ struct pci_config_window* cfg; /* Pointer to the bridge config windo= w */ const struct pci_ops *ops; + void *priv; /* Private data of the bridge. */ }; =20 struct pci_ops { @@ -95,7 +96,8 @@ struct pci_ecam_ops { extern const struct pci_ecam_ops pci_generic_ecam_ops; =20 int pci_host_common_probe(struct dt_device_node *dev, - const struct pci_ecam_ops *ops); + const struct pci_ecam_ops *ops, + size_t priv_sz); int pci_generic_config_read(struct pci_host_bridge *bridge, pci_sbdf_t sbd= f, uint32_t reg, uint32_t len, uint32_t *value); int pci_generic_config_write(struct pci_host_bridge *bridge, pci_sbdf_t sb= df, diff --git a/xen/arch/arm/pci/pci-host-common.c b/xen/arch/arm/pci/pci-host= -common.c index c0faf0f436..be7e6c3510 100644 --- a/xen/arch/arm/pci/pci-host-common.c +++ b/xen/arch/arm/pci/pci-host-common.c @@ -209,7 +209,8 @@ static int pci_bus_find_domain_nr(struct dt_device_node= *dev) } =20 int pci_host_common_probe(struct dt_device_node *dev, - const struct pci_ecam_ops *ops) + const struct pci_ecam_ops *ops, + size_t priv_sz) { struct pci_host_bridge *bridge; struct pci_config_window *cfg; @@ -241,11 +242,26 @@ int pci_host_common_probe(struct dt_device_node *dev, printk(XENLOG_ERR "Inconsistent \"linux,pci-domain\" property in D= T\n"); BUG(); } + bridge->segment =3D domain; + + if ( priv_sz ) + { + bridge->priv =3D xzalloc_bytes(priv_sz); + if ( !bridge->priv ) + { + err =3D -ENOMEM; + goto err_priv; + } + } + pci_add_host_bridge(bridge); =20 return 0; =20 +err_priv: + xfree(bridge->priv); + err_exit: xfree(bridge); =20 diff --git a/xen/arch/arm/pci/pci-host-generic.c b/xen/arch/arm/pci/pci-hos= t-generic.c index 46de6e43cc..cc4bc70684 100644 --- a/xen/arch/arm/pci/pci-host-generic.c +++ b/xen/arch/arm/pci/pci-host-generic.c @@ -29,7 +29,7 @@ static const struct dt_device_match __initconstrel gen_pc= i_dt_match[] =3D static int __init pci_host_generic_probe(struct dt_device_node *dev, const void *data) { - return pci_host_common_probe(dev, &pci_generic_ecam_ops); + return pci_host_common_probe(dev, &pci_generic_ecam_ops, 0); } =20 DT_DEVICE_START(pci_gen, "PCI HOST GENERIC", DEVICE_PCI_HOSTBRIDGE) diff --git a/xen/arch/arm/pci/pci-host-zynqmp.c b/xen/arch/arm/pci/pci-host= -zynqmp.c index 101edb8593..985a43c516 100644 --- a/xen/arch/arm/pci/pci-host-zynqmp.c +++ b/xen/arch/arm/pci/pci-host-zynqmp.c @@ -47,7 +47,7 @@ static const struct dt_device_match __initconstrel nwl_pc= ie_dt_match[] =3D static int __init pci_host_generic_probe(struct dt_device_node *dev, const void *data) { - return pci_host_common_probe(dev, &nwl_pcie_ops); + return pci_host_common_probe(dev, &nwl_pcie_ops, 0); } =20 DT_DEVICE_START(pci_gen, "PCI HOST ZYNQMP", DEVICE_PCI_HOSTBRIDGE) --=20 2.34.1