From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
To: linux-pci@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Tanmay Inamdar <tinamdar@apm.com>, Arnd Bergmann <arnd@arndb.de>,
Will Deacon <will.deacon@arm.com>,
Russell King <linux@armlinux.org.uk>,
Pratyush Anand <pratyush.anand@gmail.com>,
Jingoo Han <jingoohan1@gmail.com>, Rob Herring <robh@kernel.org>,
Simon Horman <horms@verge.net.au>,
Mingkai Hu <mingkai.hu@freescale.com>,
Murali Karicheri <m-karicheri2@ti.com>,
Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>,
Wenrui Li <wenrui.li@rock-chips.com>,
Shawn Lin <shawn.lin@rock-chips.com>,
Minghuan Lian <minghuan.Lian@freescale.com>,
Gabriele Paoloni <gabriele.paoloni@huawei.com>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Joao Pinto <Joao.Pinto@synopsys.com>,
Thierry Reding <thierry.reding@gmail.com>,
Michal Simek <michal.simek@xilinx.com>,
Stanimir Varbanov <svarbanov@mm-sol.com>,
Zhou Wang <wangzhou1@hisilicon.com>,
Roy Zang <tie-fei.zang@freescale.com>,
Matthew Minter <matt@masarand.com>,
Linus Walleij <linus.walleij@linaro.org>
Subject: [RFT PATCH v2 19/42] PCI: xgene: Convert PCI scan API to pci_scan_root_bus_bridge()
Date: Thu, 8 Jun 2017 15:13:19 +0100 [thread overview]
Message-ID: <20170608141342.2018-20-lorenzo.pieralisi@arm.com> (raw)
In-Reply-To: <20170608141342.2018-1-lorenzo.pieralisi@arm.com>
The introduction of pci_scan_root_bus_bridge() provides a PCI core
API to scan a PCI root bus backed by an already initialized
struct pci_host_bridge object, which simplifies the bus scan
interface and makes the PCI scan root bus interface easier to
generalize as members are added to the struct pci_host_bridge.
Convert PCI xgene host code to pci_scan_root_bus_bridge() to
improve the PCI root bus scanning interface.
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Tanmay Inamdar <tinamdar@apm.com>
---
drivers/pci/host/pci-xgene.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index 8cae013..262bedf 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -636,13 +636,16 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev)
struct xgene_pcie_port *port;
resource_size_t iobase = 0;
struct pci_bus *bus, *child;
+ struct pci_host_bridge *bridge;
int ret;
LIST_HEAD(res);
- port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL);
- if (!port)
+ bridge = devm_pci_alloc_host_bridge(dev, sizeof(*port));
+ if (!bridge)
return -ENOMEM;
+ port = pci_host_bridge_priv(bridge);
+
port->node = of_node_get(dn);
port->dev = dev;
@@ -670,11 +673,17 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev)
if (ret)
goto error;
- bus = pci_create_root_bus(dev, 0, &xgene_pcie_ops, port, &res);
- if (!bus) {
- ret = -ENOMEM;
+ list_splice_init(&res, &bridge->windows);
+ bridge->dev.parent = dev;
+ bridge->sysdata = port;
+ bridge->busnr = 0;
+ bridge->ops = &xgene_pcie_ops;
+
+ ret = pci_scan_root_bus_bridge(bridge);
+ if (ret < 0)
goto error;
- }
+
+ bus = bridge->bus;
pci_scan_child_bus(bus);
pci_assign_unassigned_bus_resources(bus);
--
2.10.0
next prev parent reply other threads:[~2017-06-08 14:14 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-08 14:13 [RFT PATCH v2 00/42] PCI: ARM/ARM64: remove pci_fixup_irqs() usage Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 01/42] PCI: xilinx-nwl: Remove nwl_pcie_enable_msi() unused bus parameter Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 02/42] drivers: pci: host: iproc: Convert link check to raw PCI config accessors Lorenzo Pieralisi
[not found] ` <0eb77019-9945-592c-375d-e2de742b3237@broadcom.com>
2017-06-08 16:36 ` Lorenzo Pieralisi
2017-06-11 4:12 ` Oza Oza
2017-06-12 16:13 ` Lorenzo Pieralisi
[not found] ` <CAMSpPPc0uwV0JZYkegrCaemuoJ-wfWwkSXd7TMtFwENoLRXdBQ@mail.gmail.com>
[not found] ` <403daa9b-c0f6-971d-9312-ef103460d738@broadcom.com>
[not found] ` <CAMSpPPdDLjRURZowWAzSvagmmhmojwYFYoHVu3xYcH6i-guviQ@mail.gmail.com>
[not found] ` <3d90daa1-7090-337a-b5c1-967b7eaeb2d9@broadcom.com>
2017-06-14 13:39 ` Lorenzo Pieralisi
2017-06-21 14:39 ` Oza Oza
[not found] ` <CAMSpPPdzmQBOvhz2Cx+TnnNoX-N-0cr92O07GTzWwp1TKidPcw@mail.gmail.com>
2017-07-19 17:48 ` Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 03/42] drivers: pci: host: ftpci100: convert IRQ masking " Lorenzo Pieralisi
2017-06-16 9:05 ` Linus Walleij
2017-06-08 14:13 ` [RFT PATCH v2 04/42] PCI: Initialize bridge release function at bridge allocation Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 05/42] PCI: Add pci_free_host_bridge interface Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 06/42] PCI: Add devm_pci_alloc_host_bridge() interface Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 07/42] drivers: pci: host: ftpci100: Fix host bridge memory leakage Lorenzo Pieralisi
2017-06-16 9:02 ` Linus Walleij
2017-06-08 14:13 ` [RFT PATCH v2 08/42] drivers: pci: host: tegra: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 09/42] PCI: Introduce pci_scan_root_bus_bridge() Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 10/42] PCI: Make pci_register_host_bridge() PCI core internal Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 11/42] ARM: PCI: bios32: Convert PCI scan API to pci_scan_root_bus_bridge() Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 12/42] PCI: designware: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 13/42] PCI: aardvark: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 14/42] PCI: rcar: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 15/42] PCI: iproc: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 16/42] PCI: versatile: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 17/42] PCI: altera: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 18/42] PCI: xilinx: " Lorenzo Pieralisi
2017-06-08 14:13 ` Lorenzo Pieralisi [this message]
2017-06-08 14:13 ` [RFT PATCH v2 20/42] PCI: host-common: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 21/42] PCI: rockchip: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 22/42] PCI: xilinx-nwl: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 23/42] PCI: Remove pci_scan_root_bus_msi() Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 24/42] PCI: Build setup-irq.o on all arches Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 25/42] PCI: Add IRQ mapping function pointers to pci_host_bridge struct Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 26/42] PCI: Add pci_assign_irq() function and have pci_fixup_irqs() use it Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 27/42] OF/PCI: Update of_irq_parse_and_map_pci() comment Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 28/42] PCI: Add a call to pci_assign_irq() in pci_device_probe() Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 29/42] ARM: PCI: Remove pci_fixup_irqs() call for bios32 host controllers Lorenzo Pieralisi
2017-07-01 14:06 ` Lorenzo Pieralisi
2017-07-02 21:19 ` Bjorn Helgaas
2017-07-03 10:26 ` Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 30/42] PCI: tegra: Drop pci_fixup_irqs() Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 31/42] PCI: xilinx: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 32/42] PCI: rcar: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 33/42] PCI: iproc: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 34/42] PCI: designware-host: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 35/42] PCI: ftpci100: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 36/42] PCI: host-common: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 37/42] PCI: versatile: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 38/42] PCI: altera: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 39/42] PCI: xgene: Move to struct pci_host_bridge IRQ mapping functions Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 40/42] PCI: rockchip: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 41/42] PCI: xilinx-nwl: " Lorenzo Pieralisi
2017-06-08 14:13 ` [RFT PATCH v2 42/42] ARM64: PCI: Drop DT IRQ allocation from pcibios_alloc_irq() Lorenzo Pieralisi
2017-06-12 15:45 ` [RFT PATCH v2 00/42] PCI: ARM/ARM64: remove pci_fixup_irqs() usage Will Deacon
2017-06-12 16:20 ` Lorenzo Pieralisi
2017-06-19 23:12 ` Bjorn Helgaas
2017-06-20 14:44 ` Lorenzo Pieralisi
2017-06-21 8:39 ` Linus Walleij
2017-06-21 9:50 ` Lorenzo Pieralisi
2017-06-21 10:30 ` Lorenzo Pieralisi
2017-06-21 10:45 ` Lorenzo Pieralisi
2017-06-21 14:51 ` Linus Walleij
2017-06-21 15:14 ` Linus Walleij
2017-06-21 15:41 ` Lorenzo Pieralisi
2017-06-21 16:28 ` Linus Walleij
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