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2016-10-03Merge branch 'pci/enumeration' into nextBjorn Helgaas
* pci/enumeration: PCI: tegra: Fix pci_remap_iospace() failure path PCI: generic: Fix pci_remap_iospace() failure path PCI: rcar: Fix pci_remap_iospace() failure path PCI: versatile: Fix pci_remap_iospace() failure path PCI: designware: Fix pci_remap_iospace() failure path PCI: aardvark: Fix pci_remap_iospace() failure path
2016-10-03Merge branch 'pci/aer' into nextBjorn Helgaas
* pci/aer: PCI/AER: Fix aer_probe() kernel-doc comment PCI/AER: Cache capability position PCI/AER: Avoid memory allocation in interrupt handling path ACPI / APEI: Send correct severity to calculate AER severity PCI/AER: Remove duplicate AER severity translation PCI/AER: Remove aerdriver.forceload kernel parameter PCI/AER: Remove aerdriver.nosourceid kernel parameter x86/PCI: VMD: Add quirk for AER to ignore source ID PCI/AER: Add bus flag to skip source ID matching Conflicts: drivers/pci/probe.c
2016-09-30PCI/AER: Fix aer_probe() kernel-doc commentCao jin
0516c8bcd252 ("PCI: PCIe portdrv: Simplily probe callback of service drivers") removed the "id" argument of aer_probe() but neglected to remove the kernel-doc comment. Update the comment. [bhelgaas: changelog] Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-09-27PCI/AER: Cache capability positionKeith Busch
Save the position of the error reporting capability so it doesn't need to be rediscovered during error handling. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Lukas Wunner <lukas@wunner.de>
2016-09-27PCI/AER: Avoid memory allocation in interrupt handling pathJon Derrick
When handling AER events, we previously allocated a struct aer_err_info, processed the error, and freed the struct. But aer_isr_one_error() is serialized by rpc_mutex, so we never need more than one copy of the struct, and the struct is only about 70 bytes, so we're not saving much by allocating it dynamically. Embed a struct aer_err_info directly in struct aer_rpc, which is allocated at probe-time by aer_probe(). [bhelgaas: changelog] Suggested-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-09-20ACPI / APEI: Send correct severity to calculate AER severityTyler Baicar
Currently the AER severity is calculated by calling cper_severity_to_aer(), but the parameter sent is actually the GHES severity. This causes the AER severity to be incorrect. Fix the parameter to be the CPER severity instead of the GHES severity. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Borislav Petkov <bp@suse.de>
2016-09-20PCI/AER: Remove duplicate AER severity translationTyler Baicar
Currently the AER severity is being translated twice in the code flow for PCIe errors. It is first translated in ghes_do_proc() before calling into the AER driver. Then it is translated again when the AER driver calls cper_print_aer(). This causes the severity that is used in cper_print_aer() to be incorrect. Remove the second translation that is in cper_print_aer() since this function is already receiving the correct AER severity. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Borislav Petkov <bp@suse.de>
2016-09-14PCI/AER: Remove aerdriver.forceload kernel parameterBjorn Helgaas
Per the PCI Firmware spec, r3.0, sec 4.5.1, on ACPI systems, the OS must not use AER unless _OSC is present and _OSC grants AER control to the OS. The aerdriver.forceload kernel parameter was a way to enable Linux AER support on ACPI systems that lack _OSC or fail to grant control the the OS. Enabling Linux AER support when the firmware doesn't want us to is a recipe for problems, e.g., the firmware might be handling AER itself. Remove the aerdriver.forceload kernel parameter and related supporting code. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-09-14PCI/AER: Remove aerdriver.nosourceid kernel parameterBjorn Helgaas
The aerdriver.nosourceid kernel parameter was intended for working around broken chipsets don't supply the source ID for AER events. We recently added PCI_BUS_FLAGS_NO_AERSID, which can be set by quirks for the same purpose. Remove the aerdriver.nosourceid kernel parameter. For anything other than debugging, asking users to find and use kernel parameters is a poor user experience. Instead, we should add PCI_BUS_FLAGS_NO_AERSID quirks for any hardware that needs it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-09-06x86/PCI: VMD: Add quirk for AER to ignore source IDJon Derrick
VMD root ports change all source ids to the VMD device ID. To find the sender of the AER notification, we need to scan all child devices for the AER sender, rather than relying on the source ID from the message. Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-09-06PCI/AER: Add bus flag to skip source ID matchingJon Derrick
Allow root port buses to choose to skip source id matching when finding the faulting device. Certain root port devices may return an incorrect source ID and recommend to scan child device registers for AER notifications. Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-09-06PCI: tegra: Fix pci_remap_iospace() failure pathLorenzo Pieralisi
On ARM/ARM64 architectures, PCI IO ports are emulated through memory mapped IO, by reserving a chunk of virtual address space starting at PCI_IOBASE and by mapping the PCI host bridges memory address space driving PCI IO cycles to it. PCI host bridge drivers that enable downstream PCI IO cycles map the host bridge memory address responding to PCI IO cycles to the fixed virtual address space through the pci_remap_iospace() API. This means that if the pci_remap_iospace() function fails, the corresponding host bridge PCI IO resource must be considered invalid, in that there is no way for the kernel to actually drive PCI IO transactions if the memory addresses responding to PCI IO cycles cannot be mapped into the CPU virtual address space. The PCI tegra host bridge driver adds the PCI IO resource retrieved from firmware to the host bridge resource windows even if the pci_remap_iospace() call fails; this is an actual bug in that the PCI host bridge would consider the PCI IO resource valid (and possibly assign it to downstream devices) even if the kernel was not able to map the PCI host bridge memory address driving IO cycle to the CPU virtual address space (ie pci_remap_iospace() failures). Add the PCI host bridge driver pci_remap_iospace() failure path and do not add the corresponding PCI host bridge PCI IO resources retrieved through firmware when the pci_remap_iospace() function call fails, fixing the issue. Fixes: e6e9f471f5fe ("PCI: tegra: Use generic pci_remap_iospace() rather than ARM32-specific one") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Thierry Reding <treding@nvidia.com>
2016-09-06PCI: generic: Fix pci_remap_iospace() failure pathLorenzo Pieralisi
On ARM/ARM64 architectures, PCI IO ports are emulated through memory mapped IO, by reserving a chunk of virtual address space starting at PCI_IOBASE and by mapping the PCI host bridges memory address space driving PCI IO cycles to it. PCI host bridge drivers that enable downstream PCI IO cycles map the host bridge memory address responding to PCI IO cycles to the fixed virtual address space through the pci_remap_iospace() API. This means that if the pci_remap_iospace() function fails, the corresponding host bridge PCI IO resource must be considered invalid, in that there is no way for the kernel to actually drive PCI IO transactions if the memory addresses responding to PCI IO cycles cannot be mapped into the CPU virtual address space. The PCI common host bridge driver does not remove the PCI IO resource from the host bridge resource windows if the pci_remap_iospace() call fails; this is an actual bug in that the PCI host bridge would consider the PCI IO resource valid (and possibly assign it to downstream devices) even if the kernel was not able to map the PCI host bridge memory address driving IO cycle to the CPU virtual address space (ie pci_remap_iospace() failures). Fix the PCI host bridge driver pci_remap_iospace() failure path, by destroying the PCI host bridge PCI IO resources retrieved through firmware when the pci_remap_iospace() function call fails, therefore preventing the kernel from adding the respective PCI IO resource to the list of PCI host bridge valid resources, fixing the issue. Fixes: 4e64dbe226e7 ("PCI: generic: Expose pci_host_common_probe() for use by other drivers") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Will Deacon <will.deacon@arm.com>
2016-09-06PCI: rcar: Fix pci_remap_iospace() failure pathLorenzo Pieralisi
On ARM/ARM64 architectures, PCI IO ports are emulated through memory mapped IO, by reserving a chunk of virtual address space starting at PCI_IOBASE and by mapping the PCI host bridges memory address space driving PCI IO cycles to it. PCI host bridge drivers that enable downstream PCI IO cycles map the host bridge memory address responding to PCI IO cycles to the fixed virtual address space through the pci_remap_iospace() API. This means that if the pci_remap_iospace() function fails, the corresponding host bridge PCI IO resource must be considered invalid, in that there is no way for the kernel to actually drive PCI IO transactions if the memory addresses responding to PCI IO cycles cannot be mapped into the CPU virtual address space. The PCI rcar host bridge driver does not remove the PCI IO resource from the host bridge resource windows if the pci_remap_iospace() call fails; this is an actual bug in that the PCI host bridge would consider the PCI IO resource valid (and possibly assign it to downstream devices) even if the kernel was not able to map the PCI host bridge memory address driving IO cycle to the CPU virtual address space (ie pci_remap_iospace() failures). Fix the PCI host bridge driver pci_remap_iospace() failure path, by destroying the PCI host bridge PCI IO resources retrieved through firmware when the pci_remap_iospace() function call fails, therefore preventing the kernel from adding the respective PCI IO resource to the list of PCI host bridge valid resources, fixing the issue. Fixes: 5d2917d469fa ("PCI: rcar: Convert to DT resource parsing API") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Phil Edworthy <phil.edworthy@renesas.com> CC: Simon Horman <horms+renesas@verge.net.au>
2016-09-06PCI: versatile: Fix pci_remap_iospace() failure pathLorenzo Pieralisi
On ARM/ARM64 architectures, PCI IO ports are emulated through memory mapped IO, by reserving a chunk of virtual address space starting at PCI_IOBASE and by mapping the PCI host bridges memory address space driving PCI IO cycles to it. PCI host bridge drivers that enable downstream PCI IO cycles map the host bridge memory address responding to PCI IO cycles to the fixed virtual address space through the pci_remap_iospace() API. This means that if the pci_remap_iospace() function fails, the corresponding host bridge PCI IO resource must be considered invalid, in that there is no way for the kernel to actually drive PCI IO transactions if the memory addresses responding to PCI IO cycles cannot be mapped into the CPU virtual address space. The PCI versatile host bridge driver does not remove the PCI IO resource from the host bridge resource windows if the pci_remap_iospace() call fails; this is an actual bug in that the PCI host bridge would consider the PCI IO resource valid (and possibly assign it to downstream devices) even if the kernel was not able to map the PCI host bridge memory address driving IO cycle to the CPU virtual address space (ie pci_remap_iospace() failures). Fix the PCI host bridge driver pci_remap_iospace() failure path, by destroying the PCI host bridge PCI IO resources retrieved through firmware when the pci_remap_iospace() function call fails, therefore preventing the kernel from adding the respective PCI IO resource to the list of PCI host bridge valid resources, fixing the issue. Fixes: b7e78170efd4 ("PCI: versatile: Add DT-based ARM Versatile PB PCIe host driver") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Rob Herring <robh@kernel.org>
2016-09-06PCI: designware: Fix pci_remap_iospace() failure pathLorenzo Pieralisi
On ARM/ARM64 architectures, PCI IO ports are emulated through memory mapped IO, by reserving a chunk of virtual address space starting at PCI_IOBASE and by mapping the PCI host bridges memory address space driving PCI IO cycles to it. PCI host bridge drivers that enable downstream PCI IO cycles map the host bridge memory address responding to PCI IO cycles to the fixed virtual address space through the pci_remap_iospace() API. This means that if the pci_remap_iospace() function fails, the corresponding host bridge PCI IO resource must be considered invalid, in that there is no way for the kernel to actually drive PCI IO transactions if the memory addresses responding to PCI IO cycles cannot be mapped into the CPU virtual address space. The PCI designware host bridge driver does not remove the PCI IO resource from the host bridge resource windows if the pci_remap_iospace() call fails; this is an actual bug in that the PCI host bridge would consider the PCI IO resource valid (and possibly assign it to downstream devices) even if the kernel was not able to map the PCI host bridge memory address driving IO cycle to the CPU virtual address space (ie pci_remap_iospace() failures). Fix the PCI host bridge driver pci_remap_iospace() failure path, by destroying the PCI host bridge PCI IO resources retrieved through firmware when the pci_remap_iospace() function call fails, therefore preventing the kernel from adding the respective PCI IO resource to the list of PCI host bridge valid resources, fixing the issue. Fixes: cbce7900598c ("PCI: designware: Make driver arch-agnostic") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Jingoo Han <jingoohan1@gmail.com> CC: Pratyush Anand <pratyush.anand@gmail.com>
2016-09-06PCI: aardvark: Fix pci_remap_iospace() failure pathLorenzo Pieralisi
On ARM/ARM64 architectures, PCI IO ports are emulated through memory mapped IO, by reserving a chunk of virtual address space starting at PCI_IOBASE and by mapping the PCI host bridge's memory address space driving PCI IO cycles to it. PCI host bridge drivers that enable downstream PCI IO cycles map the host bridge memory address responding to PCI IO cycles to the fixed virtual address space through the pci_remap_iospace() API. This means that if the pci_remap_iospace() function fails, the corresponding host bridge PCI IO resource must be considered invalid, in that there is no way for the kernel to actually drive PCI IO transactions if the memory addresses responding to PCI IO cycles cannot be mapped into the CPU virtual address space. The PCI aardvark host bridge driver does not remove the PCI IO resource from the host bridge resource windows if the pci_remap_iospace() call fails; this is an actual bug in that the PCI host bridge would consider the PCI IO resource valid (and possibly assign it to downstream devices) even if the kernel was not able to map the PCI host bridge memory address driving IO cycle to the CPU virtual address space (ie pci_remap_iospace() failures). Fix the PCI host bridge driver pci_remap_iospace() failure path, by destroying the PCI host bridge PCI IO resources retrieved through firmware when the pci_remap_iospace() function call fails, therefore preventing the kernel from adding the respective PCI IO resource to the list of PCI host bridge valid resources, fixing the issue. Fixes: 8c39d710363c ("PCI: aardvark: Add Aardvark PCI host controller driver") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-09-01Merge branch 'pci/ptm' into nextBjorn Helgaas
* pci/ptm: PCI: Add PTM clock granularity information PCI: Add pci_enable_ptm() for drivers to enable PTM on endpoints PCI: Add Precision Time Measurement (PTM) support
2016-09-01Merge branch 'pci/demodularize' into nextBjorn Helgaas
* pci/demodularize: PCI: pciehp: Make explicitly non-modular PCI: hotplug: Make core explicitly non-modular PCI: xilinx-nwl: Make explicitly non-modular PCI: xilinx: Make explicitly non-modular PCI: qcom: Make explicitly non-modular PCI: dra7xx: Make explicitly non-modular PCI/AER: Make explicitly non-modular PCI/PME: Make explicitly non-modular PCI: Make DPC explicitly non-modular PCI: generic: Make explicitly non-modular PCI: exynos: Make explicitly non-modular PCI: designware: Make explicitly non-modular PCI: spear: Make explicitly non-modular PCI: portdrv: Make explicitly non-modular PCI: imx6: Make explicitly non-modular PCI: altera: Make explicitly non-modular PCI: altera: Make MSI explicitly non-modular
2016-08-25PCI: Add PTM clock granularity informationBjorn Helgaas
The PTM Control register (PCIe r3.1, sec 7.32.3) contains an Effective Granularity field: This provides information relating to the expected accuracy of the PTM clock, but does not otherwise affect the PTM mechanism. Set the Effective Granularity based on the PTM Root and any intervening PTM Time Sources. This does not set Effective Granularity for Root Complex Integrated Endpoints because I don't know how to figure out clock granularity for them. The spec says: ... system software must set [Effective Granularity] to the value reported in the Local Clock Granularity field by the associated PTM Time Source. but I don't know how to identify the associated PTM Time Source. Normally it's the upstream bridge, but an integrated endpoint has no upstream bridge. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-08-24PCI: pciehp: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: obj-$(CONFIG_HOTPLUG_PCI_PCIE) += pciehp.o pciehp-objs := pciehp_core.o \ drivers/pci/pcie/Kconfig:config HOTPLUG_PCI_PCIE drivers/pci/pcie/Kconfig: bool "PCI Express Hotplug driver" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, module_init() translates to device_initcall(). One could argue that we should use subsys_initcall() here, but for now we stick with runtime equivalence. We delete module.h but we keep the moduleparam.h include, since we are keeping the module_param() that the file has as-is for now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Kristen Carlson Accardi <kristen@linux.intel.com>
2016-08-24PCI: hotplug: Make core explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: obj-$(CONFIG_HOTPLUG_PCI) += pci_hotplug.o [...] pci_hotplug-objs := pci_hotplug_core.o drivers/pci/hotplug/Kconfig:menuconfig HOTPLUG_PCI drivers/pci/hotplug/Kconfig: bool "Support for PCI Hotplug" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Remove orphaned exit function in cpci_hotplug_core.c. Note that for non-modular code, module_init() translates to device_initcall(). One could argue that we should use subsys_initcall() here, but for now we stick with runtime equivalence. We would delete module.h and just keep the moduleparam.h include (since the file does use module_param), but there is a try_module_get and module_put pairing that prevents us from doing that. [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Scott Murray <scott@spiteful.org> CC: Kristen Carlson Accardi <kristen@linux.intel.com>
2016-08-24PCI: xilinx-nwl: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_XILINX_NWL drivers/pci/host/Kconfig: bool "NWL PCIe Core" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Explicitly disallow driver unbind, since that doesn't have a sensible use case anyway, and it allows us to drop the ".remove" code for non-modular drivers. Delete several functions only used by the remove function. Note that for non-modular code, builtin_platform_driver() uses the same init level priority as module_platform_driver(), so this doesn't change init ordering. [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Michal Simek <michal.simek@xilinx.com> CC: "Sören Brinkmann" <soren.brinkmann@xilinx.com> CC: Marc Zyngier <marc.zyngier@arm.com> CC: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
2016-08-24PCI: xilinx: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_XILINX drivers/pci/host/Kconfig: bool "Xilinx AXI PCIe host bridge support" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, builtin_platform_driver() uses the same init level priority as module_platform_driver(), so this doesn't change init ordering. [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Michal Simek <michal.simek@xilinx.com> CC: "Sören Brinkmann" <soren.brinkmann@xilinx.com>
2016-08-24PCI: qcom: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_QCOM drivers/pci/host/Kconfig: bool "Qualcomm PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, MODULE_DEVICE_TABLE is a no-op and builtin_platform_driver() uses the same init level priority as module_platform_driver(), so this doesn't change init ordering. Explicitly disallow driver unbind, since that doesn't have a sensible use case anyway, and it allows us to drop the ".remove" code for non-modular drivers. [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Stanimir Varbanov <svarbanov@mm-sol.com>
2016-08-24PCI: dra7xx: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_DRA7XX drivers/pci/host/Kconfig: bool "TI DRA7xx PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, MODULE_DEVICE_TABLE is a no-op and builtin_platform_driver_probe() uses the same init level priority as module_platform_driver_probe(), so this doesn't change init ordering. Explicitly disallow driver unbind, since that doesn't have a sensible use case anyway, and it allows us to drop the ".remove" code for non-modular drivers. [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Kishon Vijay Abraham I <kishon@ti.com>
2016-08-24PCI/AER: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: obj-$(CONFIG_PCIEAER) += aerdriver.o aerdriver-objs := aerdrv_errprint.o aerdrv_core.o aerdrv.o drivers/pci/pcie/aer/Kconfig:config PCIEAER drivers/pci/pcie/aer/Kconfig: bool "Root Port Advanced Error Reporting support" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, module_init() translates to device_initcall(). [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Tom Long Nguyen <tom.l.nguyen@intel.com>
2016-08-24PCI/PME: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: config PCIE_PME def_bool y depends on PCIEPORTBUS && PM Remove traces of modularity so that when reading the driver there is no doubt it is builtin-only. Also delete the .remove function, since that doesn't seem to have a sensible use case. With "normal" endpoint drivers, we have in the past set the suppress_bind_attrs bit to make it clear that the use of ".remove" in a builtin driver was deleted, but here for PCI, it seems overkill to jump through the pcie_port_service_driver and into the struct device_driver in order to finally try and do something similar with the bind setting. Note that for non-modular code, module_init() translates to device_initcall(). Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-08-24PCI: Make DPC explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/pcie/Kconfig:config PCIE_DPC drivers/pci/pcie/Kconfig: bool "PCIe Downstream Port Containment support" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, module_init() translates to device_initcall(). [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Keith Busch <keith.busch@intel.com> CC: Mika Westerberg <mika.westerberg@linux.intel.com>
2016-08-24PCI: generic: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_HOST_COMMON drivers/pci/host/Kconfig: bool Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Will Deacon <will.deacon@arm.com>
2016-08-23PCI: exynos: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_EXYNOS drivers/pci/host/Kconfig: bool "Samsung Exynos PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, MODULE_DEVICE_TABLE is a no-op. [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> CC: Jingoo Han <jingoohan1@gmail.com> CC: Kukjin Kim <kgene@kernel.org>
2016-08-23PCI: designware: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_DW drivers/pci/host/Kconfig: bool Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Jingoo Han <jingoohan1@gmail.com> CC: Pratyush Anand <pratyush.anand@gmail.com>
2016-08-23PCI: spear: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_SPEAR13XX drivers/pci/host/Kconfig: bool "STMicroelectronics SPEAr PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, MODULE_DEVICE_TABLE is a no-op and module_init() translates to device_initcall(). [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Pratyush Anand <pratyush.anand@gmail.com>
2016-08-23PCI: portdrv: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: pcieportdrv-y := portdrv_core.o portdrv_pci.o portdrv_bus.o obj-$(CONFIG_PCIEPORTBUS) += pcieportdrv.o drivers/pci/pcie/Kconfig:config PCIEPORTBUS drivers/pci/pcie/Kconfig: bool "PCI Express Port Bus support" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, MODULE_DEVICE_TABLE is a no-op and module_init() translates to device_initcall(). [bhelgaas: changelog, remove unused DRIVER_* macros] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Tom Long Nguyen <tom.l.nguyen@intel.com>
2016-08-23PCI: imx6: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCI_IMX6 drivers/pci/host/Kconfig: bool "Freescale i.MX6 PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, MODULE_DEVICE_TABLE is a no-op and module_init() translates to device_initcall(). [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Richard Zhu <Richard.Zhu@freescale.com> CC: Lucas Stach <l.stach@pengutronix.de>
2016-08-23PCI: altera: Make explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_ALTERA drivers/pci/host/Kconfig: bool "Altera PCIe controller" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. Note that for non-modular code, MODULE_DEVICE_TABLE is a no-op and module_init() translates to device_initcall(). [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Ley Foon Tan <lftan@altera.com>
2016-08-23PCI: altera: Make MSI explicitly non-modularPaul Gortmaker
This code is not being built as a module by anyone: drivers/pci/host/Kconfig:config PCIE_ALTERA_MSI drivers/pci/host/Kconfig: bool "Altera PCIe MSI feature" Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(), etc., so that when reading the driver there is no doubt it is builtin-only. The information is preserved in comments at the top of the file. [bhelgaas: changelog] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Ley Foon Tan <lftan@altera.com>
2016-08-18PCI: Add pci_enable_ptm() for drivers to enable PTM on endpointsBjorn Helgaas
Add an pci_enable_ptm() interface so drivers can enable PTM. The PCI core enables PTM on PTM Roots and switches automatically, but we don't enable PTM on endpoints unless a driver requests it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-08-15PCI: Add Precision Time Measurement (PTM) supportJonathan Yong
Add Precision Time Measurement (PTM) support (see PCIe r3.1, sec 6.22). Enable PTM on PTM Root devices and switch ports. This does not enable PTM on endpoints. There currently are no PTM-capable devices on the market, but it is expected to be supported by the Intel Apollo Lake platform. [bhelgaas: complete rework] Signed-off-by: Jonathan Yong <jonathan.yong@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-08-07Linux 4.8-rc1v4.8-rc1Linus Torvalds
2016-08-07Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull more block fixes from Jens Axboe: "As mentioned in the pull the other day, a few more fixes for this round, all related to the bio op changes in this series. Two fixes, and then a cleanup, renaming bio->bi_rw to bio->bi_opf. I wanted to do that change right after or right before -rc1, so that risk of conflict was reduced. I just rebased the series on top of current master, and no new ->bi_rw usage has snuck in" * 'for-linus' of git://git.kernel.dk/linux-block: block: rename bio bi_rw to bi_opf target: iblock_execute_sync_cache() should use bio_set_op_attrs() mm: make __swap_writepage() use bio_set_op_attrs() block/mm: make bdev_ops->rw_page() take a bool for read/write
2016-08-07Merge tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm zpos property support from Dave Airlie: "This tree was waiting on some media stuff I hadn't had time to get a stable branchpoint off, so I just waited until it was all in your tree first. It's been around a bit on the list and shouldn't affect anything outside adding the generic API and moving some ARM drivers to using it" * tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux: drm: rcar: use generic code for managing zpos plane property drm/exynos: use generic code for managing zpos plane property drm: sti: use generic zpos for plane drm: add generic zpos property
2016-08-07block: rename bio bi_rw to bi_opfJens Axboe
Since commit 63a4cc24867d, bio->bi_rw contains flags in the lower portion and the op code in the higher portions. This means that old code that relies on manually setting bi_rw is most likely going to be broken. Instead of letting that brokeness linger, rename the member, to force old and out-of-tree code to break at compile time instead of at runtime. No intended functional changes in this commit. Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-07target: iblock_execute_sync_cache() should use bio_set_op_attrs()Jens Axboe
The original commit missed this function, it needs to mark it a write flush. Cc: Mike Christie <mchristi@redhat.com> Fixes: e742fc32fcb4 ("target: use bio op accessors") Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-07mm: make __swap_writepage() use bio_set_op_attrs()Jens Axboe
Cleaner than manipulating bio->bi_rw flags directly. Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-07block/mm: make bdev_ops->rw_page() take a bool for read/writeJens Axboe
Commit abf545484d31 changed it from an 'rw' flags type to the newer ops based interface, but now we're effectively leaking some bdev internals to the rest of the kernel. Since we only care about whether it's a read or a write at that level, just pass in a bool 'is_write' parameter instead. Then we can also move op_is_write() and friends back under CONFIG_BLOCK protection. Reviewed-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-07Merge tag 'doc-4.8-fixes' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation fixes from Jonathan Corbet: "Three fixes for the docs build, including removing an annoying warning on 'make help' if sphinx isn't present" * tag 'doc-4.8-fixes' of git://git.lwn.net/linux: DocBook: use DOCBOOKS="" to ignore DocBooks instead of IGNORE_DOCBOOKS=1 Documenation: update cgroup's document path Documentation/sphinx: do not warn about missing tools in 'make help'
2016-08-07Merge tag 'binfmt-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc Pull binfmt_misc update from James Bottomley: "This update is to allow architecture emulation containers to function such that the emulation binary can be housed outside the container itself. The container and fs parts both have acks from relevant experts. To use the new feature you have to add an F option to your binfmt_misc configuration" From the docs: "The usual behaviour of binfmt_misc is to spawn the binary lazily when the misc format file is invoked. However, this doesn't work very well in the face of mount namespaces and changeroots, so the F mode opens the binary as soon as the emulation is installed and uses the opened image to spawn the emulator, meaning it is always available once installed, regardless of how the environment changes" * tag 'binfmt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc: binfmt_misc: add F option description to documentation binfmt_misc: add persistent opened binary handler for containers fs: add filp_clone_open API
2016-08-07fs: return EPERM on immutable inodeEryu Guan
In most cases, EPERM is returned on immutable inode, and there're only a few places returning EACCES. I noticed this when running LTP on overlayfs, setxattr03 failed due to unexpected EACCES on immutable inode. So converting all EACCES to EPERM on immutable inode. Acked-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-07Merge branch 'for-linus-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more vfs updates from Al Viro: "Assorted cleanups and fixes. In the "trivial API change" department - ->d_compare() losing 'parent' argument" * 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: cachefiles: Fix race between inactivating and culling a cache object 9p: use clone_fid() 9p: fix braino introduced in "9p: new helper - v9fs_parent_fid()" vfs: make dentry_needs_remove_privs() internal vfs: remove file_needs_remove_privs() vfs: fix deadlock in file_remove_privs() on overlayfs get rid of 'parent' argument of ->d_compare() cifs, msdos, vfat, hfs+: don't bother with parent in ->d_compare() affs ->d_compare(): don't bother with ->d_inode fold _d_rehash() and __d_rehash() together fold dentry_rcuwalk_invalidate() into its only remaining caller