From mboxrd@z Thu Jan 1 00:00:00 1970 From: s.temerkhanov@gmail.com (Sergey Temerkhanov) Date: Thu, 6 Apr 2017 11:47:11 +0000 Subject: [PATCH] arm64: acpi: Support PCI devices numa_node property in ACPI mode Message-ID: <20170406114711.17261-1-s.temerkhanov@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This commit modifies ARM64-specific ACPI PCI support functions to properly set the numa_node property on host bridges and thus on PCI devices. Such support requires _PXM objects to be set in DSDT/SSDT tables describing PCI root bridges Signed-off-by: Sergey Temerkhanov --- arch/arm64/kernel/pci.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c index 4f0e3ebfea4b..c45c7a26f984 100644 --- a/arch/arm64/kernel/pci.c +++ b/arch/arm64/kernel/pci.c @@ -81,7 +81,16 @@ int raw_pci_write(unsigned int domain, unsigned int bus, int pcibus_to_node(struct pci_bus *bus) { - return dev_to_node(&bus->dev); + struct pci_config_window *cfg = bus->sysdata; + struct acpi_device *adev = NULL; + struct device *dev; + + if (!acpi_disabled) + adev = to_acpi_device(cfg->parent); + + dev = adev ? &adev->dev : &bus->dev; + + return dev_to_node(dev); } EXPORT_SYMBOL(pcibus_to_node); @@ -186,6 +195,8 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) struct pci_bus *bus, *child; struct acpi_pci_root_ops *root_ops; + set_dev_node(&root->device->dev, node); + ri = kzalloc_node(sizeof(*ri), GFP_KERNEL, node); if (!ri) return NULL; -- 2.12.1