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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-08 03:48:15 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-08 03:48:15 +0200 |
commit | 049eb096da48db0421dd5e358b9b082a1a8a2025 (patch) | |
tree | 19c1713c656396b2fb9a861985aef80d8d521bec /drivers/pci/controller/pci-host-common.c | |
parent | Merge tag 'trace-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/roste... (diff) | |
parent | Merge branch 'pci/irq-error' (diff) | |
download | linux-049eb096da48db0421dd5e358b9b082a1a8a2025.tar.xz linux-049eb096da48db0421dd5e358b9b082a1a8a2025.zip |
Merge tag 'pci-v5.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Fix pci_cfg_wait queue locking problem (Bjorn Helgaas)
- Convert PCIe capability PCIBIOS errors to errno (Bolarinwa Olayemi
Saheed)
- Align PCIe capability and PCI accessor return values (Bolarinwa
Olayemi Saheed)
- Fix pci_create_slot() reference count leak (Qiushi Wu)
- Announce device after early fixups (Tiezhu Yang)
PCI device hotplug:
- Make rpadlpar functions static (Wei Yongjun)
Driver binding:
- Add device even if driver attach failed (Rajat Jain)
Virtualization:
- xen: Remove redundant initialization of irq (Colin Ian King)
IOMMU:
- Add pci_pri_supported() to check device or associated PF (Ashok Raj)
- Release IVRS table in AMD ACS quirk (Hanjun Guo)
- Mark AMD Navi10 GPU rev 0x00 ATS as broken (Kai-Heng Feng)
- Treat "external-facing" devices themselves as internal (Rajat Jain)
MSI:
- Forward MSI-X error code in pci_alloc_irq_vectors_affinity() (Piotr
Stankiewicz)
Error handling:
- Clear PCIe Device Status errors only if OS owns AER (Jonathan
Cameron)
- Log correctable errors as warning, not error (Matt Jolly)
- Use 'pci_channel_state_t' instead of 'enum pci_channel_state' (Luc
Van Oostenryck)
Peer-to-peer DMA:
- Allow P2PDMA on AMD Zen and newer CPUs (Logan Gunthorpe)
ASPM:
- Add missing newline in sysfs 'policy' (Xiongfeng Wang)
Native PCIe controllers:
- Convert to devm_platform_ioremap_resource_byname() (Dejin Zheng)
- Convert to devm_platform_ioremap_resource() (Dejin Zheng)
- Remove duplicate error message from devm_pci_remap_cfg_resource()
callers (Dejin Zheng)
- Fix runtime PM imbalance on error (Dinghao Liu)
- Remove dev_err() when handing an error from platform_get_irq()
(Krzysztof Wilczyński)
- Use pci_host_bridge.windows list directly instead of splicing in a
temporary list for cadence, mvebu, host-common (Rob Herring)
- Use pci_host_probe() instead of open-coding all the pieces for
altera, brcmstb, iproc, mobiveil, rcar, rockchip, tegra, v3,
versatile, xgene, xilinx, xilinx-nwl (Rob Herring)
- Default host bridge parent device to the platform device (Rob
Herring)
- Use pci_is_root_bus() instead of tracking root bus number
separately in aardvark, designware (imx6, keystone,
designware-host), mobiveil, xilinx-nwl, xilinx, rockchip, rcar (Rob
Herring)
- Set host bridge bus number in pci_scan_root_bus_bridge() instead of
each driver for aardvark, designware-host, host-common, mediatek,
rcar, tegra, v3-semi (Rob Herring)
- Move DT resource setup into devm_pci_alloc_host_bridge() (Rob
Herring)
- Set bridge map_irq and swizzle_irq to default functions; drivers
that don't support legacy IRQs (iproc) need to undo this (Rob
Herring)
ARM Versatile PCIe controller driver:
- Drop flag PCI_ENABLE_PROC_DOMAINS (Rob Herring)
Cadence PCIe controller driver:
- Use "dma-ranges" instead of "cdns,no-bar-match-nbits" property
(Kishon Vijay Abraham I)
- Remove "mem" from reg binding (Kishon Vijay Abraham I)
- Fix cdns_pcie_{host|ep}_setup() error path (Kishon Vijay Abraham I)
- Convert all r/w accessors to perform only 32-bit accesses (Kishon
Vijay Abraham I)
- Add support to start link and verify link status (Kishon Vijay
Abraham I)
- Allow pci_host_bridge to have custom pci_ops (Kishon Vijay Abraham I)
- Add new *ops* for CPU addr fixup (Kishon Vijay Abraham I)
- Fix updating Vendor ID and Subsystem Vendor ID register (Kishon
Vijay Abraham I)
- Use bridge resources for outbound window setup (Rob Herring)
- Remove private bus number and range storage (Rob Herring)
Cadence PCIe endpoint driver:
- Add MSI-X support (Alan Douglas)
HiSilicon PCIe controller driver:
- Remove non-ECAM HiSilicon hip05/hip06 driver (Rob Herring)
Intel VMD host bridge driver:
- Use Shadow MEMBAR registers for QEMU/KVM guests (Jon Derrick)
Loongson PCIe controller driver:
- Use DECLARE_PCI_FIXUP_EARLY for bridge_class_quirk() (Tiezhu Yang)
Marvell Aardvark PCIe controller driver:
- Indicate error in 'val' when config read fails (Pali Rohár)
- Don't touch PCIe registers if no card connected (Pali Rohár)
Marvell MVEBU PCIe controller driver:
- Setup BAR0 in order to fix MSI (Shmuel Hazan)
Microsoft Hyper-V host bridge driver:
- Fix a timing issue which causes kdump to fail occasionally (Wei Hu)
- Make some functions static (Wei Yongjun)
NVIDIA Tegra PCIe controller driver:
- Revert tegra124 raw_violation_fixup (Nicolas Chauvet)
- Remove PLL power supplies (Thierry Reding)
Qualcomm PCIe controller driver:
- Change duplicate PCI reset to phy reset (Abhishek Sahu)
- Add missing ipq806x clocks in PCIe driver (Ansuel Smith)
- Add missing reset for ipq806x (Ansuel Smith)
- Add ext reset (Ansuel Smith)
- Use bulk clk API and assert on error (Ansuel Smith)
- Add support for tx term offset for rev 2.1.0 (Ansuel Smith)
- Define some PARF params needed for ipq8064 SoC (Ansuel Smith)
- Add ipq8064 rev2 variant (Ansuel Smith)
- Support PCI speed set for ipq806x (Sham Muthayyan)
Renesas R-Car PCIe controller driver:
- Use devm_pci_alloc_host_bridge() (Rob Herring)
- Use struct pci_host_bridge.windows list directly (Rob Herring)
- Convert rcar-gen2 to use modern host bridge probe functions (Rob
Herring)
TI J721E PCIe driver:
- Add TI J721E PCIe host and endpoint driver (Kishon Vijay Abraham I)
Xilinx Versal CPM PCIe controller driver:
- Add Versal CPM Root Port driver and YAML schema (Bharat Kumar
Gogada)
MicroSemi Switchtec management driver:
- Add missing __iomem and __user tags to fix sparse warnings (Logan
Gunthorpe)
Miscellaneous:
- Replace http:// links with https:// (Alexander A. Klimov)
- Replace lkml.org, spinics, gmane with lore.kernel.org (Bjorn
Helgaas)
- Remove unused pci_lost_interrupt() (Heiner Kallweit)
- Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h (Huacai Chen)
- Fix kerneldoc warnings (Krzysztof Kozlowski)"
* tag 'pci-v5.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (113 commits)
PCI: Fix kerneldoc warnings
PCI: xilinx-cpm: Add Versal CPM Root Port driver
PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port
PCI: Set bridge map_irq and swizzle_irq to default functions
PCI: Move DT resource setup into devm_pci_alloc_host_bridge()
PCI: rcar-gen2: Convert to use modern host bridge probe functions
PCI: Remove dev_err() when handing an error from platform_get_irq()
MAINTAINERS: Add Kishon Vijay Abraham I for TI J721E SoC PCIe
misc: pci_endpoint_test: Add J721E in pci_device_id table
PCI: j721e: Add TI J721E PCIe driver
PCI: switchtec: Add missing __iomem tag to fix sparse warnings
PCI: switchtec: Add missing __iomem and __user tags to fix sparse warnings
PCI: rpadlpar: Make functions static
PCI/P2PDMA: Allow P2PDMA on AMD Zen and newer CPUs
PCI: Release IVRS table in AMD ACS quirk
PCI: Announce device after early fixups
PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken
PCI: Remove unused pci_lost_interrupt()
dt-bindings: PCI: Add EP mode dt-bindings for TI's J721E SoC
dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC
...
Diffstat (limited to 'drivers/pci/controller/pci-host-common.c')
-rw-r--r-- | drivers/pci/controller/pci-host-common.c | 57 |
1 files changed, 19 insertions, 38 deletions
diff --git a/drivers/pci/controller/pci-host-common.c b/drivers/pci/controller/pci-host-common.c index 953de57f6c57..6ce34a1deecb 100644 --- a/drivers/pci/controller/pci-host-common.c +++ b/drivers/pci/controller/pci-host-common.c @@ -21,39 +21,32 @@ static void gen_pci_unmap_cfg(void *ptr) } static struct pci_config_window *gen_pci_init(struct device *dev, - struct list_head *resources, const struct pci_ecam_ops *ops) + struct pci_host_bridge *bridge, const struct pci_ecam_ops *ops) { int err; struct resource cfgres; - struct resource *bus_range = NULL; + struct resource_entry *bus; struct pci_config_window *cfg; - /* Parse our PCI ranges and request their resources */ - err = pci_parse_request_of_pci_ranges(dev, resources, NULL, &bus_range); - if (err) - return ERR_PTR(err); - err = of_address_to_resource(dev->of_node, 0, &cfgres); if (err) { dev_err(dev, "missing \"reg\" property\n"); - goto err_out; + return ERR_PTR(err); } - cfg = pci_ecam_create(dev, &cfgres, bus_range, ops); - if (IS_ERR(cfg)) { - err = PTR_ERR(cfg); - goto err_out; - } + bus = resource_list_first_type(&bridge->windows, IORESOURCE_BUS); + if (!bus) + return ERR_PTR(-ENODEV); + + cfg = pci_ecam_create(dev, &cfgres, bus->res, ops); + if (IS_ERR(cfg)) + return cfg; err = devm_add_action_or_reset(dev, gen_pci_unmap_cfg, cfg); - if (err) { - goto err_out; - } - return cfg; + if (err) + return ERR_PTR(err); -err_out: - pci_free_resource_list(resources); - return ERR_PTR(err); + return cfg; } int pci_host_common_probe(struct platform_device *pdev) @@ -61,9 +54,7 @@ int pci_host_common_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct pci_host_bridge *bridge; struct pci_config_window *cfg; - struct list_head resources; const struct pci_ecam_ops *ops; - int ret; ops = of_device_get_match_data(&pdev->dev); if (!ops) @@ -76,7 +67,7 @@ int pci_host_common_probe(struct platform_device *pdev) of_pci_check_probe_only(); /* Parse and map our Configuration Space windows */ - cfg = gen_pci_init(dev, &resources, ops); + cfg = gen_pci_init(dev, bridge, ops); if (IS_ERR(cfg)) return PTR_ERR(cfg); @@ -84,32 +75,22 @@ int pci_host_common_probe(struct platform_device *pdev) if (!pci_has_flag(PCI_PROBE_ONLY)) pci_add_flags(PCI_REASSIGN_ALL_BUS); - list_splice_init(&resources, &bridge->windows); - bridge->dev.parent = dev; bridge->sysdata = cfg; - bridge->busnr = cfg->busr.start; bridge->ops = (struct pci_ops *)&ops->pci_ops; - bridge->map_irq = of_irq_parse_and_map_pci; - bridge->swizzle_irq = pci_common_swizzle; - ret = pci_host_probe(bridge); - if (ret < 0) { - pci_free_resource_list(&resources); - return ret; - } + platform_set_drvdata(pdev, bridge); - platform_set_drvdata(pdev, bridge->bus); - return 0; + return pci_host_probe(bridge); } EXPORT_SYMBOL_GPL(pci_host_common_probe); int pci_host_common_remove(struct platform_device *pdev) { - struct pci_bus *bus = platform_get_drvdata(pdev); + struct pci_host_bridge *bridge = platform_get_drvdata(pdev); pci_lock_rescan_remove(); - pci_stop_root_bus(bus); - pci_remove_root_bus(bus); + pci_stop_root_bus(bridge->bus); + pci_remove_root_bus(bridge->bus); pci_unlock_rescan_remove(); return 0; |