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2021-02-24Merge branch 'pci/layerscape'Bjorn Helgaas
- Add Layerscape LX2160A rev2 endpoint mode support (Hou Zhiqiang) - Convert layerscape to builtin_platform_driver() (Michael Walle) * pci/layerscape: PCI: layerscape: Convert to builtin_platform_driver() PCI: layerscape: Add LX2160A rev2 EP mode support dt-bindings: PCI: layerscape: Add LX2160A rev2 compatible strings
2021-02-24Merge branch 'pci/dwc'Bjorn Helgaas
- Always set DesignWare "TLP Digest" bit so generic code can enable ECRC via the AER Capability (Vidya Sagar) - Drop support for config space in DT 'ranges' (Rob Herring) - Increase width of outbound iATU size to u64 (Shradha Todi) - Add upper limit address for outbound iATU (Shradha Todi) - Allow dwc-based drivers that don't override any default ops (Jisheng Zhang) - Drop unnecessary dw_pcie_ops from the al driver (Jisheng Zhang) * pci/dwc: PCI: al: Remove useless dw_pcie_ops PCI: dwc: Don't assume the ops in dw_pcie always exist PCI: dwc: Add upper limit address for outbound iATU PCI: dwc: Change size to u64 for EP outbound iATU PCI: dwc: Drop support for config space in 'ranges' PCI: dwc: Work around ECRC configuration issue
2021-02-24Merge branch 'remotes/lorenzo/pci/cadence'Bjorn Helgaas
- Retrain Link to work around Gen2 training defect (Nadeem Athani) * remotes/lorenzo/pci/cadence: PCI: cadence: Retrain Link to work around Gen2 training defect
2021-02-24Merge branch 'remotes/lorenzo/pci/brcmstb'Bjorn Helgaas
- Add support for BCM4908 with external PERST# signal controller (Rafał Miłecki) * remotes/lorenzo/pci/brcmstb: PCI: brcmstb: support BCM4908 with external PERST# signal controller dt-bindings: PCI: brcmstb: add BCM4908 binding
2021-02-24Merge branch 'pci/misc'Bjorn Helgaas
- Align checking of syscall user config accessor return codes (Heiner Kallweit) - Fix "ordering" comment typos (Bjorn Helgaas) - Fix 'ARM/TEXAS INSTRUMENT KEYSTONE CLOCKSOURCE' capitalization in MAINTAINERS (Bjorn Helgaas) - Add Silicom Denmark vendor ID (Martin Hundebøll) - Apply CONFIG_PCI_DEBUG to entire drivers/pci hierarchy (Junhao He) - Remove WARN_ON(in_interrupt()) (Sebastian Andrzej Siewior) * pci/misc: PCI: Remove WARN_ON(in_interrupt()) PCI: Apply CONFIG_PCI_DEBUG to entire drivers/pci hierarchy PCI: Add Silicom Denmark vendor ID MAINTAINERS: Fix 'ARM/TEXAS INSTRUMENT KEYSTONE CLOCKSOURCE' capitalization Fix "ordering" comment typos PCI: Align checking of syscall user config accessors
2021-02-24Merge branch 'pci/host-probe-refactor'Bjorn Helgaas
- Fix merge botch in cdns_pcie_host_map_dma_ranges() (Krzysztof Wilczyński) * pci/host-probe-refactor: PCI: cadence: Fix DMA range mapping early return error
2021-02-24Merge branch 'pci/resource'Bjorn Helgaas
- Decline requests to resize BARs if platform requires us to preserve resource assignments (Ard Biesheuvel) * pci/resource: PCI: Decline to resize resources if boot config must be preserved
2021-02-24Merge branch 'pci/link'Bjorn Helgaas
- Remove bandwidth notification for now to avoid reporting spam (Bjorn Helgaas) * pci/link: PCI/LINK: Remove bandwidth notification
2021-02-24Merge branch 'pci/hotplug'Bjorn Helgaas
- Remove unused acpiphp_callback typedef (Chen Lin) * pci/hotplug: PCI: acpiphp: Remove unused acpiphp_callback typedef
2021-02-24Merge branch 'pci/error'Bjorn Helgaas
- Clear AER status of the reporting device (Keith Busch) - Clear AER status from Root Port when resetting Downstream Port (Keith Busch) - Retain status from error notification (Keith Busch) - Log the type of Port that was reset for error handling (Keith Busch) - Report reset for frozen channel (Keith Busch) * pci/error: PCI/portdrv: Report reset for frozen channel PCI/AER: Specify the type of Port that was reset PCI/ERR: Retain status from error notification PCI/AER: Clear AER status from Root Port when resetting Downstream Port PCI/ERR: Clear status of the reporting device
2021-02-24Merge branch 'pci/enumeration'Bjorn Helgaas
- Unexport acpi_pci_osc_control_set() (Bjorn Helgaas) - Remove unnecessary osc_lock mutex (Bjorn Helgaas) - Clarify _OSC failure message (Bjorn Helgaas) - Fix pci-bridge-emul array overruns and improve safety (Russell King) - Fix pci_register_io_range() memory leak (Geert Uytterhoeven) * pci/enumeration: PCI: Fix pci_register_io_range() memory leak PCI: pci-bridge-emul: Fix array overruns, improve safety PCI/ACPI: Clarify message about _OSC failure PCI/ACPI: Remove unnecessary osc_lock PCI/ACPI: Make acpi_pci_osc_control_set() static
2021-02-24PCI: al: Remove useless dw_pcie_opsJisheng Zhang
We have removed the assumption that dw_pcie_ops always exists in the dwc core driver, so we can remove the useless dw_pcie_ops now. Link: https://lore.kernel.org/r/20210128144324.2fa8577c@xhacker.debian Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Jonathan Chocron <jonnyc@amazon.com>
2021-02-24PCI: dwc: Don't assume the ops in dw_pcie always existJisheng Zhang
Some dwc-based device drivers, especially host-only drivers, may work well with the default read_dbi/write_dbi/link_up implementations in pcie-designware.c, so remove the assumption that every driver implements them to simplify those drivers. Link: https://lore.kernel.org/r/20210128144258.10329aa4@xhacker.debian Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-02-24PCI: dwc: Add upper limit address for outbound iATUShradha Todi
The size parameter is unsigned long type which can accept size > 4GB. In that case, the upper limit address must be programmed. Add support to program the upper limit address and set INCREASE_REGION_SIZE in case size > 4GB. Link: https://lore.kernel.org/r/1612250918-19610-1-git-send-email-shradha.t@samsung.com Signed-off-by: Shradha Todi <shradha.t@samsung.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Rob Herring <robh@kernel.org>
2021-02-24PCI: dwc: Change size to u64 for EP outbound iATUShradha Todi
Since outbound iATU permits size to be greater than 4GB for which the support is also available, allow EP function to send u64 size instead of truncating to u32. Link: https://lore.kernel.org/r/1609929900-19082-1-git-send-email-shradha.t@samsung.com Signed-off-by: Shradha Todi <shradha.t@samsung.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
2021-02-24PCI: dwc: Drop support for config space in 'ranges'Rob Herring
Since commit a0fd361db8e5 ("PCI: dwc: Move "dbi", "dbi2", and "addr_space" resource setup into common code"), the code setting dbi_base when the config space is defined in 'ranges' property instead of 'reg' is dead code as dbi_base is never NULL. Rather than fix this, let's just drop the code. Using ranges has been deprecated since 2014. The only platforms using this were exynos5440, i.MX6 and Spear13xx. Exynos5440 is dead and has been removed. i.MX6 and Spear13xx had PCIe support added just before this was deprecated and were fixed within a kernel release or 2. Link: https://lore.kernel.org/r/20201215194149.86831-1-robh@kernel.org Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-02-24PCI: layerscape: Convert to builtin_platform_driver()Michael Walle
fw_devlink will defer the probe until all suppliers are ready. We can't use builtin_platform_driver_probe() because it doesn't retry after probe deferral. Convert it to builtin_platform_driver(). Link: https://lore.kernel.org/r/20210120105246.23218-1-michael@walle.cc Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-02-24PCI: layerscape: Add LX2160A rev2 EP mode supportHou Zhiqiang
The LX2160A rev2 uses the same PCIe IP as LS2088A, but LX2160A rev2 PCIe controller is integrated with different stride between PFs' register address. Link: https://lore.kernel.org/r/20201026051448.1913-2-Zhiqiang.Hou@nxp.com Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-02-24dt-bindings: PCI: layerscape: Add LX2160A rev2 compatible stringsHou Zhiqiang
Add PCIe Endpoint mode compatible string "fsl,lx2160ar2-pcie-ep" Link: https://lore.kernel.org/r/20201026051448.1913-1-Zhiqiang.Hou@nxp.com Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rob Herring <robh@kernel.org>
2021-02-24PCI: dwc: Work around ECRC configuration issueVidya Sagar
DesignWare core has a TLP digest (TD) override bit in one of the control registers of ATU. This bit also needs to be programmed for proper ECRC functionality. This is currently identified as an issue with DesignWare IP version 4.90a. [bhelgaas: fix typos/grammar errors] Link: https://lore.kernel.org/r/20201230165723.673-1-vidyas@nvidia.com Signed-off-by: Vidya Sagar <vidyas@nvidia.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2021-02-23PCI/portdrv: Report reset for frozen channelKeith Busch
The PCI error recovery always resets the link for a frozen state, so the port driver should return that a reset is required for its result. This will get the .slot_reset() callback invoked, which is necessary to restore the port's config space. Without this, the driver had been relying on downstream drivers to return this status. Link: https://lore.kernel.org/r/20210104230300.1277180-6-kbusch@kernel.org Tested-by: Hedi Berriche <hedi.berriche@hpe.com> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Hedi Berriche <hedi.berriche@hpe.com>
2021-02-23PCI/AER: Specify the type of Port that was resetKeith Busch
The AER driver may be called upon to reset either a Downstream or a Root Port. Check which type it is to properly identify it when logging that the reset occurred. Link: https://lore.kernel.org/r/20210104230300.1277180-5-kbusch@kernel.org Tested-by: Hedi Berriche <hedi.berriche@hpe.com> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Hedi Berriche <hedi.berriche@hpe.com>
2021-02-23PCI/ERR: Retain status from error notificationKeith Busch
Overwriting the frozen detected status with the result of the link reset loses the NEED_RESET result that drivers are depending on for error handling to report the .slot_reset() callback. Retain this status so that subsequent error handling has the correct flow. Link: https://lore.kernel.org/r/20210104230300.1277180-4-kbusch@kernel.org Reported-by: Hinko Kocevar <hinko.kocevar@ess.eu> Tested-by: Hedi Berriche <hedi.berriche@hpe.com> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Sean V Kelley <sean.v.kelley@intel.com> Acked-by: Hedi Berriche <hedi.berriche@hpe.com>
2021-02-23PCI/AER: Clear AER status from Root Port when resetting Downstream PortKeith Busch
The pci_dev parameter given to aer_root_reset() may be a Downstream Port rather than the Root Port. Get the Root Port from the provided device in order to clear the root's AER status. Link: https://lore.kernel.org/r/20210104230300.1277180-3-kbusch@kernel.org Tested-by: Hedi Berriche <hedi.berriche@hpe.com> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Sean V Kelley <sean.v.kelley@intel.com> Acked-by: Hedi Berriche <hedi.berriche@hpe.com>
2021-02-23PCI/ERR: Clear status of the reporting deviceKeith Busch
Error handling operates on the first Downstream Port above the detected error, but the error may have been reported by a downstream device. Clear the AER status of the device that reported the error rather than the first Downstream Port. Link: https://lore.kernel.org/r/20210104230300.1277180-2-kbusch@kernel.org Tested-by: Hedi Berriche <hedi.berriche@hpe.com> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Sean V Kelley <sean.v.kelley@intel.com> Acked-by: Hedi Berriche <hedi.berriche@hpe.com>
2021-02-18PCI: acpiphp: Remove unused acpiphp_callback typedefChen Lin
Remove the 'acpiphp_callback' typedef as it is not used. Link: https://lore.kernel.org/r/1613443120-4279-1-git-send-email-chen45464546@163.com Signed-off-by: Chen Lin <chen.lin5@zte.com.cn> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-18PCI: cadence: Fix DMA range mapping early return errorKrzysztof Wilczyński
Function cdns_pcie_host_map_dma_ranges() iterates over a PCIe host bridge DMA ranges using the resource_list_for_each_entry() iterator, returning an error if cdns_pcie_host_bar_config() fails. 49e427e6bdd1 ("Merge branch 'pci/host-probe-refactor'") botched a merge so it *always* returned after the first DMA range, even if no error occurred. Fix the error checking so we return early only when an error occurs. [bhelgaas: commit log] Fixes: 49e427e6bdd1 ("Merge branch 'pci/host-probe-refactor'") Link: https://lore.kernel.org/r/20210216205935.3112661-1-kw@linux.com Signed-off-by: Krzysztof Wilczyński <kw@linux.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-02-17PCI: Fix pci_register_io_range() memory leakGeert Uytterhoeven
Kmemleak reports: unreferenced object 0xc328de40 (size 64): comm "kworker/1:1", pid 21, jiffies 4294938212 (age 1484.670s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 e0 d8 fc eb 00 00 00 00 ................ 00 00 10 fe 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ad758d10>] pci_register_io_range+0x3c/0x80 [<2c7f139e>] of_pci_range_to_resource+0x48/0xc0 [<f079ecc8>] devm_of_pci_get_host_bridge_resources.constprop.0+0x2ac/0x3ac [<e999753b>] devm_of_pci_bridge_init+0x60/0x1b8 [<a895b229>] devm_pci_alloc_host_bridge+0x54/0x64 [<e451ddb0>] rcar_pcie_probe+0x2c/0x644 In case a PCI host driver's probe is deferred, the same I/O range may be allocated again, and be ignored, causing a memory leak. Fix this by (a) letting logic_pio_register_range() return -EEXIST if the passed range already exists, so pci_register_io_range() will free it, and by (b) making pci_register_io_range() not consider -EEXIST an error condition. Link: https://lore.kernel.org/r/20210202100332.829047-1-geert+renesas@glider.be Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-02-17PCI: pci-bridge-emul: Fix array overruns, improve safetyRussell King
We allow up to PCI_EXP_SLTSTA2 registers to be accessed, but the pcie_cap_regs_behavior[] array only covers up to PCI_EXP_RTSTA. Expand this array to avoid walking off the end of it. Do the same for pci_regs_behavior for consistency[], and add a BUILD_BUG_ON() to also check the bridge->conf structure size. Fixes: 23a5fba4d941 ("PCI: Introduce PCI bridge emulated config space common logic") Link: https://lore.kernel.org/r/E1l6z9W-0006Re-MQ@rmk-PC.armlinux.org.uk Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Pali Rohár <pali@kernel.org>
2021-02-10PCI: Remove WARN_ON(in_interrupt())Sebastian Andrzej Siewior
WARN_ON(in_interrupt()) is used for historic reasons to ensure proper usage of down_read() and predates might_sleep() and lockdep. down_read() has might_sleep() which also catches users from preemption disabled regions while in_interrupt() does not. Remove WARN_ON(in_interrupt()) because there are now better debugging facilities. Link: https://lore.kernel.org/r/20210208194400.384003-1-bigeasy@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-02-10PCI: cadence: Retrain Link to work around Gen2 training defectNadeem Athani
Cadence controller will not initiate autonomous speed change if strapped as Gen2. The Retrain Link bit is set as quirk to enable this speed change. Link: https://lore.kernel.org/r/20210209144622.26683-3-nadeem@cadence.com Signed-off-by: Nadeem Athani <nadeem@cadence.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2021-02-09PCI: Apply CONFIG_PCI_DEBUG to entire drivers/pci hierarchyJunhao He
CONFIG_PCI_DEBUG=y adds -DDEBUG to CFLAGS, which enables things like pr_debug() and dev_dbg() (and hence pci_dbg()). Previously we added -DDEBUG for files in drivers/pci/, but not files in subdirectories of drivers/pci/. Add -DDEBUG to CFLAGS for all files below drivers/pci/ so CONFIG_PCI_DEBUG applies to the entire hierarchy. [bhelgaas: commit log] Link: https://lore.kernel.org/r/1612438215-33105-1-git-send-email-yangyicong@hisilicon.com Signed-off-by: Junhao He <hejunhao2@hisilicon.com> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
2021-02-09PCI: Add Silicom Denmark vendor IDMartin Hundebøll
Update pci_ids.h with the vendor ID for Silicom Denmark. The define is going to be referenced in driver(s) for FPGA accelerated smart NICs. Link: https://lore.kernel.org/r/20210208150158.2877414-1-mhu@silicom.dk Signed-off-by: Martin Hundebøll <mhu@silicom.dk> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Tom Rix <trix@redhat.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
2021-02-02PCI/LINK: Remove bandwidth notificationBjorn Helgaas
The PCIe Bandwidth Change Notification feature logs messages when the link bandwidth changes. Some users have reported that these messages occur often enough to significantly reduce NVMe performance. GPUs also seem to generate these messages. We don't know why the link bandwidth changes, but in the reported cases there's no indication that it's caused by hardware failures. Remove the bandwidth change notifications for now. Hopefully we can add this back when we have a better understanding of why this happens and how we can make the messages useful instead of overwhelming. Link: https://lore.kernel.org/r/20200115221008.GA191037@google.com/ Link: https://lore.kernel.org/r/155605909349.3575.13433421148215616375.stgit@gimli.home/ Link: https://bugzilla.kernel.org/show_bug.cgi?id=206197 Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-01-29MAINTAINERS: Fix 'ARM/TEXAS INSTRUMENT KEYSTONE CLOCKSOURCE' capitalizationBjorn Helgaas
Fix capitalization typo in 'ARM/TEXAS INSTRUMENT KEYSTONE CLOCKSOURCE'. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-01-29Fix "ordering" comment typosBjorn Helgaas
Fix comment typos in "ordering". Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Kalle Valo <kvalo@codeaurora.org> Acked-by: Vasily Gorbik <gor@linux.ibm.com> # s390
2021-01-27PCI: Align checking of syscall user config accessorsHeiner Kallweit
After 34e3207205ef ("PCI: handle positive error codes"), pci_user_read_config_*() and pci_user_write_config_*() return 0 or negative errno values, not PCIBIOS_* values like PCIBIOS_SUCCESSFUL or PCIBIOS_BAD_REGISTER_NUMBER. Remove comparisons with PCIBIOS_SUCCESSFUL and check only for non-zero. It happens that PCIBIOS_SUCCESSFUL is zero, so this is not a functional change, but it aligns this code with the user accessors. [bhelgaas: commit log] Fixes: 34e3207205ef ("PCI: handle positive error codes") Link: https://lore.kernel.org/r/f1220314-e518-1e18-bf94-8e6f8c703758@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-01-27PCI/ACPI: Clarify message about _OSC failureBjorn Helgaas
This message: acpi PNP0A08:02: _OSC failed (AE_NOT_FOUND); disabling ASPM is alarming and slightly misleading. Per the PCI Firmware Spec, r3.2, sec 4.5.1, _OSC is required for PCIe hierarchies. If _OSC is absent or fails, the OS must not attempt to use any of the features defined for _OSC. That includes native hotplug, native PME, AER, and other things as well as ASPM. Rephrase the message to: acpi PNP0A08:02: _OSC: platform retains control of PCIe features (AE_NOT_FOUND) Previous discussion at https://lore.kernel.org/r/20200602223618.GA845676@bjorn-Precision-5520/ Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Sinan Kaya <okaya@kernel.org> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Yicong Yang <yangyicong@hisilicon.com>
2021-01-27PCI/ACPI: Remove unnecessary osc_lockBjorn Helgaas
9778c14b4ca2 ("ACPI/PCI: Fix possible race condition on _OSC evaluation") added locking around _OSC calls to protect the acpi_osc_data_list that stored the results. 63f10f0f6df4 ("PCI/ACPI: move _OSC code to pci_root.c") moved the results from acpi_osc_data_list to the struct acpi_pci_root, where it no longer needs locking, but did not remove the lock. Remove the unnecessary locking around _OSC calls. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-01-27PCI/ACPI: Make acpi_pci_osc_control_set() staticBjorn Helgaas
acpi_pci_osc_control_set() is only called from pci_root.c, so stop exporting it and make it static. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-01-19PCI: brcmstb: support BCM4908 with external PERST# signal controllerRafał Miłecki
BCM4908 uses external MISC block for controlling PERST# signal. Use it as a reset controller. Link: https://lore.kernel.org/r/20201210180421.7230-3-zajec5@gmail.com Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com>
2021-01-19dt-bindings: PCI: brcmstb: add BCM4908 bindingRafał Miłecki
BCM4908 is a SoC family with PCIe controller sharing design with the one for STB. BCM4908 has different power management and memory controller so few tweaks are required. PERST# signal on BCM4908 is handled by an external MISC block so it needs specifying a reset phandle. Link: https://lore.kernel.org/r/20201210180421.7230-2-zajec5@gmail.com Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com>
2021-01-12PCI: Decline to resize resources if boot config must be preservedArd Biesheuvel
The _DSM #5 method in the ACPI host bridge object tells us whether the OS must preserve the resource assignments done by firmware. If this is the case, we should not permit drivers to resize BARs on the fly. Make pci_resize_resource() take this into account. Link: https://lore.kernel.org/r/20210109095353.13417-1-ardb@kernel.org Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org # v5.4+
2021-01-10Linux 5.11-rc3v5.11-rc3Linus Torvalds
2021-01-10Merge tag 'kbuild-fixes-v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Search for <ncurses.h> in the default header path of HOSTCC - Tweak the option order to be kind to old BSD awk - Remove 'kvmconfig' and 'xenconfig' shorthands - Fix documentation * tag 'kbuild-fixes-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: Documentation: kbuild: Fix section reference kconfig: remove 'kvmconfig' and 'xenconfig' shorthands lib/raid6: Let $(UNROLL) rules work with macOS userland kconfig: Support building mconf with vendor sysroot ncurses kconfig: config script: add a little user help MAINTAINERS: adjust GCC PLUGINS after gcc-plugin.sh removal
2021-01-10Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is two driver fixes (megaraid_sas and hisi_sas). The megaraid one is a revert of a previous revert of a cpu hotplug fix which exposed a bug in the block layer which has been fixed in this merge window. The hisi_sas performance enhancement comes from switching to interrupt managed completion queues, which depended on the addition of devm_platform_get_irqs_affinity() which is now upstream via the irq tree in the last merge window" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: hisi_sas: Expose HW queues for v2 hw Revert "Revert "scsi: megaraid_sas: Added support for shared host tagset for cpuhotplug""
2021-01-10Merge tag 'block-5.11-2021-01-10' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: - Missing CRC32 selections (Arnd) - Fix for a merge window regression with bdev inode init (Christoph) - bcache fixes - rnbd fixes - NVMe pull request from Christoph: - fix a race in the nvme-tcp send code (Sagi Grimberg) - fix a list corruption in an nvme-rdma error path (Israel Rukshin) - avoid a possible double fetch in nvme-pci (Lalithambika Krishnakumar) - add the susystem NQN quirk for a Samsung driver (Gopal Tiwari) - fix two compiler warnings in nvme-fcloop (James Smart) - don't call sleeping functions from irq context in nvme-fc (James Smart) - remove an unused argument (Max Gurtovoy) - remove unused exports (Minwoo Im) - Use-after-free fix for partition iteration (Ming) - Missing blk-mq debugfs flag annotation (John) - Bdev freeze regression fix (Satya) - blk-iocost NULL pointer deref fix (Tejun) * tag 'block-5.11-2021-01-10' of git://git.kernel.dk/linux-block: (26 commits) bcache: set bcache device into read-only mode for BCH_FEATURE_INCOMPAT_OBSO_LARGE_BUCKET bcache: introduce BCH_FEATURE_INCOMPAT_LOG_LARGE_BUCKET_SIZE for large bucket bcache: check unsupported feature sets for bcache register bcache: fix typo from SUUP to SUPP in features.h bcache: set pdev_set_uuid before scond loop iteration blk-mq-debugfs: Add decode for BLK_MQ_F_TAG_HCTX_SHARED block/rnbd-clt: avoid module unload race with close confirmation block/rnbd: Adding name to the Contributors List block/rnbd-clt: Fix sg table use after free block/rnbd-srv: Fix use after free in rnbd_srv_sess_dev_force_close block/rnbd: Select SG_POOL for RNBD_CLIENT block: pre-initialize struct block_device in bdev_alloc_inode fs: Fix freeze_bdev()/thaw_bdev() accounting of bd_fsfreeze_sb nvme: remove the unused status argument from nvme_trace_bio_complete nvmet-rdma: Fix list_del corruption on queue establishment failure nvme: unexport functions with no external caller nvme: avoid possible double fetch in handling CQE nvme-tcp: Fix possible race of io_work and direct send nvme-pci: mark Samsung PM1725a as IGNORE_DEV_SUBNQN nvme-fcloop: Fix sscanf type and list_first_entry_or_null warnings ...
2021-01-10Merge tag 'io_uring-5.11-2021-01-10' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull io_uring fixes from Jens Axboe: "A bit larger than I had hoped at this point, but it's all changes that will be directed towards stable anyway. In detail: - Fix a merge window regression on error return (Matthew) - Remove useless variable declaration/assignment (Ye Bin) - IOPOLL fixes (Pavel) - Exit and cancelation fixes (Pavel) - fasync lockdep complaint fix (Pavel) - Ensure SQPOLL is synchronized with creator life time (Pavel)" * tag 'io_uring-5.11-2021-01-10' of git://git.kernel.dk/linux-block: io_uring: stop SQPOLL submit on creator's death io_uring: add warn_once for io_uring_flush() io_uring: inline io_uring_attempt_task_drop() io_uring: io_rw_reissue lockdep annotations io_uring: synchronise ev_posted() with waitqueues io_uring: dont kill fasync under completion_lock io_uring: trigger eventfd for IOPOLL io_uring: Fix return value from alloc_fixed_file_ref_node io_uring: Delete useless variable ‘id’ in io_prep_async_work io_uring: cancel more aggressively in exit_work io_uring: drop file refs after task cancel io_uring: patch up IOPOLL overflow_flush sync io_uring: synchronise IOPOLL on task_submit fail
2021-01-10Merge tag 'usb-5.11-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a number of small USB driver fixes for 5.11-rc3. Include in here are: - USB gadget driver fixes for reported issues - new usb-serial driver ids - dma from stack bugfixes - typec bugfixes - dwc3 bugfixes - xhci driver bugfixes - other small misc usb driver bugfixes All of these have been in linux-next with no reported issues" * tag 'usb-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (35 commits) usb: dwc3: gadget: Clear wait flag on dequeue usb: typec: Send uevent for num_altmodes update usb: typec: Fix copy paste error for NVIDIA alt-mode description usb: gadget: enable super speed plus kcov, usb: hide in_serving_softirq checks in __usb_hcd_giveback_urb usb: uas: Add PNY USB Portable SSD to unusual_uas usb: gadget: configfs: Preserve function ordering after bind failure usb: gadget: select CONFIG_CRC32 usb: gadget: core: change the comment for usb_gadget_connect usb: gadget: configfs: Fix use-after-free issue with udc_name usb: dwc3: gadget: Restart DWC3 gadget when enabling pullup usb: usbip: vhci_hcd: protect shift size USB: usblp: fix DMA to stack USB: serial: iuu_phoenix: fix DMA from stack USB: serial: option: add LongSung M5710 module support USB: serial: option: add Quectel EM160R-GL USB: Gadget: dummy-hcd: Fix shift-out-of-bounds bug usb: gadget: f_uac2: reset wMaxPacketSize usb: dwc3: ulpi: Fix USB2.0 HS/FS/LS PHY suspend regression usb: dwc3: ulpi: Replace CPU-based busyloop with Protocol-based one ...
2021-01-10Merge tag 'staging-5.11-rc3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver fixes from Greg KH: "Here are some small staging driver fixes for 5.11-rc3. Nothing major, just resolving some reported issues: - cleanup some remaining mentions of the ION drivers that were removed in 5.11-rc1 - comedi driver bugfix - two error path memory leak fixes All have been in linux-next for a while with no reported issues" * tag 'staging-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: ION: remove some references to CONFIG_ION staging: mt7621-dma: Fix a resource leak in an error handling path Staging: comedi: Return -EFAULT if copy_to_user() fails staging: spmi: hisi-spmi-controller: Fix some error handling paths
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-02 12:10:53 +0000