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authorLinus Torvalds <torvalds@linux-foundation.org>2015-04-13 15:45:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-13 15:45:47 -0700
commit3be1b98e073bdd4c1bb3144201a927c4a21330ba (patch)
tree6eb0619a4715d8f83388e8fd7a56f58d1c99f6cf /arch/sparc
parent392b46f31f43a71c5391eb9cffe304979d2d6c30 (diff)
parent5468d5a64bf1e002e5081fa280186d0eba09fa0e (diff)
downloadlinux-3be1b98e073bdd4c1bb3144201a927c4a21330ba.tar.bz2
Merge tag 'pci-v4.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas: "Enumeration - Read capability list as dwords, not bytes (Sean O. Stalley) Resource management - Don't check for PNP overlaps with unassigned PCI BARs (Bjorn Helgaas) - Mark invalid BARs as unassigned (Bjorn Helgaas) - Show driver, BAR#, and resource on pci_ioremap_bar() failure (Bjorn Helgaas) - Fail pci_ioremap_bar() on unassigned resources (Bjorn Helgaas) - Assign resources before drivers claim devices (Yijing Wang) - Claim bus resources before pci_bus_add_devices() (Yijing Wang) Power management - Optimize device state transition delays (Aaron Lu) - Don't clear ASPM bits when the FADT declares it's unsupported (Matthew Garrett) Virtualization - Add ACS quirks for Intel 1G NICs (Alex Williamson) IOMMU - Add ptr to OF node arg to of_iommu_configure() (Murali Karicheri) - Move of_dma_configure() to device.c to help re-use (Murali Karicheri) - Fix size when dma-range is not used (Murali Karicheri) - Add helper functions pci_get[put]_host_bridge_device() (Murali Karicheri) - Add of_pci_dma_configure() to update DMA configuration (Murali Karicheri) - Update DMA configuration from DT (Murali Karicheri) - dma-mapping: limit IOMMU mapping size (Murali Karicheri) - Calculate device DMA masks based on DT dma-range size (Murali Karicheri) ARM Versatile host bridge driver - Check for devm_ioremap_resource() failures (Jisheng Zhang) Broadcom iProc host bridge driver - Add Broadcom iProc PCIe driver (Ray Jui) Marvell MVEBU host bridge driver - Add suspend/resume support (Thomas Petazzoni) Renesas R-Car host bridge driver - Fix position of MSI enable bit (Nobuhiro Iwamatsu) - Write zeroes to reserved PCIEPARL bits (Nobuhiro Iwamatsu) - Change PCIEPARL and PCIEPARH to PCIEPALR and PCIEPAUR (Nobuhiro Iwamatsu) - Verify that mem_res is 64K-aligned (Nobuhiro Iwamatsu) Samsung Exynos host bridge driver - Fix INTx enablement statement termination error (Jaehoon Chung) Miscellaneous - Make a shareable UUID for PCI firmware ACPI _DSM (Aaron Lu) - Clarify policy for vendor IDs in pci.txt (Michael S. Tsirkin)" * tag 'pci-v4.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (36 commits) PCI: Read capability list as dwords, not bytes PCI: layerscape: Simplify platform_get_resource_byname() failure checking PCI: keystone: Don't dereference possible NULL pointer PCI: versatile: Check for devm_ioremap_resource() failures PCI: Don't clear ASPM bits when the FADT declares it's unsupported PCI: Clarify policy for vendor IDs in pci.txt PCI/ACPI: Optimize device state transition delays PCI: Export pci_find_host_bridge() for use inside PCI core PCI: Make a shareable UUID for PCI firmware ACPI _DSM PCI: Fix typo in Thunderbolt kernel message PCI: exynos: Fix INTx enablement statement termination error PCI: iproc: Add Broadcom iProc PCIe support PCI: iproc: Add DT docs for Broadcom iProc PCIe driver PCI: Export symbols required for loadable host driver modules PCI: Add ACS quirks for Intel 1G NICs PCI: mvebu: Add suspend/resume support PCI: Cleanup control flow sparc/PCI: Claim bus resources before pci_bus_add_devices() PCI: Assign resources before drivers claim devices (pci_scan_root_bus()) PCI: Fail pci_ioremap_bar() on unassigned resources ...
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/kernel/leon_pci.c16
-rw-r--r--arch/sparc/kernel/pci.c3
-rw-r--r--arch/sparc/kernel/pcic.c4
3 files changed, 14 insertions, 9 deletions
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index 899b7203a4e4..4371f72ff025 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -34,15 +34,17 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info,
&resources);
- if (root_bus) {
- /* Setup IRQs of all devices using custom routines */
- pci_fixup_irqs(pci_common_swizzle, info->map_irq);
-
- /* Assign devices with resources */
- pci_assign_unassigned_resources();
- } else {
+ if (!root_bus) {
pci_free_resource_list(&resources);
+ return;
}
+
+ /* Setup IRQs of all devices using custom routines */
+ pci_fixup_irqs(pci_common_swizzle, info->map_irq);
+
+ /* Assign devices with resources */
+ pci_assign_unassigned_resources();
+ pci_bus_add_devices(root_bus);
}
void pcibios_fixup_bus(struct pci_bus *pbus)
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index b36365f49478..6f7251fd2eab 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -674,11 +674,10 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
}
pci_of_scan_bus(pbm, node, bus);
- pci_bus_add_devices(bus);
pci_bus_register_of_sysfs(bus);
pci_claim_bus_resources(bus);
-
+ pci_bus_add_devices(bus);
return bus;
}
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 6cc78c213c01..24384e1dc33d 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -391,12 +391,16 @@ static void __init pcic_pbm_scan_bus(struct linux_pcic *pcic)
struct linux_pbm_info *pbm = &pcic->pbm;
pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno, &pcic_ops, pbm);
+ if (!pbm->pci_bus)
+ return;
+
#if 0 /* deadwood transplanted from sparc64 */
pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
pci_record_assignments(pbm, pbm->pci_bus);
pci_assign_unassigned(pbm, pbm->pci_bus);
pci_fixup_irq(pbm, pbm->pci_bus);
#endif
+ pci_bus_add_devices(pbm->pci_bus);
}
/*