From: Benjamin Herrenschmidt <benh@kernel.crashing.org> To: linux-pci@vger.kernel.org Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Ard Biesheuvel <ard.biesheuvel@linaro.org>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Sinan Kaya <okaya@kernel.org>, Zeev Zilberman <zeev@amazon.com>, linux-arm-kernel <linux-arm-kernel@lists.infradead.org>, Bjorn Helgaas <helgaas@kernel.org>, Ali Saidi <alisaidi@amazon.com> Subject: [PATCH 1/4] arm64: pci: acpi: Use pci_assign_unassigned_root_bus_resources() Date: Sat, 15 Jun 2019 10:23:56 +1000 Message-ID: <20190615002359.29577-1-benh@kernel.crashing.org> (raw) Instead of the simpler pci_bus_size_bridges(bus); pci_bus_assign_resources(bus); Use pci_assign_unassigned_root_bus_resources(). This should have no effect as long as we are reassigning everything. Once we start honoring FW resource allocations, this will bring up the "reallocation" feature which can help making room for SR-IOV when necessary. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> --- arch/arm64/kernel/pci.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c index bb85e2f4603f..1419b1b4e9b9 100644 --- a/arch/arm64/kernel/pci.c +++ b/arch/arm64/kernel/pci.c @@ -193,8 +193,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) if (!bus) return NULL; - pci_bus_size_bridges(bus); - pci_bus_assign_resources(bus); + pci_assign_unassigned_root_bus_resources(bus); list_for_each_entry(child, &bus->children, node) pcie_bus_configure_settings(child); -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply index Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-06-15 0:23 Benjamin Herrenschmidt [this message] 2019-06-15 0:23 ` [PATCH 2/4] pci: acpi: Read _DSM #5 from ACPI on root bridges Benjamin Herrenschmidt 2019-06-21 20:07 ` Bjorn Helgaas 2019-06-15 0:23 ` [PATCH 3/4] pci: Do not auto-enable PCI reallocation when _DSM #5 returns 0 Benjamin Herrenschmidt 2019-06-21 20:07 ` Bjorn Helgaas 2019-06-15 0:23 ` [PATCH 4/4] arm64: pci: acpi: Preserve PCI resources configuration when asked by ACPI Benjamin Herrenschmidt 2019-06-21 14:57 ` Lorenzo Pieralisi 2019-06-21 23:07 ` Benjamin Herrenschmidt 2019-06-21 15:44 ` Ard Biesheuvel 2019-06-21 20:08 ` Bjorn Helgaas 2019-06-20 17:13 ` [PATCH 1/4] arm64: pci: acpi: Use pci_assign_unassigned_root_bus_resources() Lorenzo Pieralisi 2019-06-20 22:55 ` Benjamin Herrenschmidt 2019-06-21 20:06 ` Bjorn Helgaas 2019-06-21 20:48 ` Bjorn Helgaas 2019-06-21 22:58 ` Benjamin Herrenschmidt 2019-06-21 23:00 ` Benjamin Herrenschmidt 2019-06-21 23:15 ` Bjorn Helgaas
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