From: wangyijing@huawei.com (Yijing Wang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 12/29] PCI: Introduce new scan function pci_scan_host_bridge()
Date: Fri, 6 Mar 2015 17:33:29 +0800 [thread overview]
Message-ID: <1425634426-437-13-git-send-email-wangyijing@huawei.com> (raw)
In-Reply-To: <1425634426-437-1-git-send-email-wangyijing@huawei.com>
Introduce new scan function pci_scan_host_bridge() to
support host bridge drivers that need to provide platform
own pci_host_bridge_ops.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/probe.c | 22 ++++++++++++++++++++++
include/linux/pci.h | 4 ++++
2 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index b76fca6..54557a1 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -2063,6 +2063,28 @@ static struct pci_bus *__pci_scan_root_bus(
return b;
}
+struct pci_host_bridge *pci_scan_host_bridge(struct device *parent,
+ u32 db, struct pci_ops *ops, void *sysdata,
+ struct list_head *resources,
+ struct pci_host_bridge_ops *phb_ops)
+{
+ struct pci_host_bridge *host;
+ struct pci_bus *bus;
+
+ host = pci_create_host_bridge(parent, db, resources,
+ sysdata, phb_ops);
+ if (!host)
+ return NULL;
+
+ bus = __pci_scan_root_bus(host, ops);
+ if (!bus)
+ pci_free_host_bridge(host);
+
+ return host;
+}
+EXPORT_SYMBOL(pci_scan_host_bridge);
+
+
struct pci_bus *pci_scan_root_bus(struct device *parent, u32 db,
struct pci_ops *ops, void *sysdata, struct list_head *resources)
{
diff --git a/include/linux/pci.h b/include/linux/pci.h
index e9922b1..28eafb5 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -790,6 +790,10 @@ void pci_bus_release_busn_res(struct pci_bus *b);
struct pci_bus *pci_scan_root_bus(struct device *parent, u32 dombus,
struct pci_ops *ops, void *sysdata,
struct list_head *resources);
+struct pci_host_bridge *pci_scan_host_bridge(struct device *parent,
+ u32 dombus, struct pci_ops *ops, void *sysdata,
+ struct list_head *resources,
+ struct pci_host_bridge_ops *phb_ops);
struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev,
int busnr);
void pcie_update_link_speed(struct pci_bus *bus, u16 link_status);
--
1.7.1
next prev parent reply other threads:[~2015-03-06 9:33 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-06 9:33 [PATCH v5 00/29] Refine PCI scan interfaces and make generic pci host bridge Yijing Wang
2015-03-06 9:33 ` [PATCH v5 01/29] PCI: Rip out pci_bus_add_devices() from pci_scan_bus() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 02/29] PCI: Rip out pci_bus_add_devices() from pci_scan_root_bus() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 03/29] xen/PCI: Don't use deprecated function pci_scan_bus_parented() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 04/29] PCI: Remove deprecated pci_scan_bus_parented() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 05/29] PCI: Combine PCI domain and bus number in u32 arg Yijing Wang
2015-03-06 9:33 ` [PATCH v5 06/29] PCI: Pass PCI domain number combined with root bus number Yijing Wang
2015-03-06 9:33 ` [PATCH v5 07/29] PCI: Introduce pci_host_assign_domain_nr() to assign domain Yijing Wang
2015-03-06 9:33 ` [PATCH v5 08/29] PCI: Separate pci_host_bridge creation out of pci_create_root_bus() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 09/29] PCI: Introduce pci_host_bridge_list to manage host bridges Yijing Wang
2015-03-06 9:33 ` [PATCH v5 10/29] PCI: Save sysdata in pci_host_bridge drvdata Yijing Wang
2015-03-06 9:33 ` [PATCH v5 11/29] PCI: Introduce pci_host_bridge_ops to support host specific operations Yijing Wang
2015-03-06 9:33 ` Yijing Wang [this message]
2015-03-06 9:33 ` [PATCH v5 13/29] x86/PCI: Refine pci_acpi_scan_root() with generic pci_host_bridge Yijing Wang
2015-03-06 9:33 ` [PATCH v5 14/29] ia64/PCI: " Yijing Wang
2015-03-06 9:33 ` [PATCH v5 15/29] powerpc/pci: Rename pcibios_root_bridge_prepare() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 16/29] powerpc/pci: Use pci_scan_host_bridge() for simplicity Yijing Wang
2015-03-06 14:19 ` Rob Herring
2015-03-09 2:47 ` Yijing Wang
2015-03-06 9:33 ` [PATCH v5 17/29] PCI: Remove weak pcibios_root_bridge_prepare() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 18/29] sparc/PCI: Claim bus resources before pci_bus_add_devices() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 19/29] sparc/PCI: Use pci_scan_host_bridge() for simplicity Yijing Wang
2015-03-06 9:33 ` [PATCH v5 20/29] PCI: Introduce pci_bus_child_max_busnr() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 21/29] parisc/PCI: Use pci_scan_root_bus() for simplicity Yijing Wang
2015-03-06 9:33 ` [PATCH v5 22/29] PCI/mvebu: Use pci_common_init_dev() to simplify code Yijing Wang
2015-03-06 9:33 ` [PATCH v5 23/29] PCI/tegra: Remove redundant tegra_pcie_scan_bus() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 24/29] PCI/designware: Use pci_scan_root_bus() for simplicity Yijing Wang
2015-03-06 9:33 ` [PATCH v5 25/29] PCI/xgene: Use pci_scan_root_bus() instead of pci_create_root_bus() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 26/29] PCI: Rename __pci_create_root_bus() to pci_create_root_bus() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 27/29] PCI: Export find_pci_host_bridge() and rename to pci_find_host_bridge() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 28/29] PCI: Remove platform specific pci_domain_nr() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 29/29] PCI: Remove pci_bus_assign_domain_nr() Yijing Wang
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