Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v4.19.112 2018-06-26T20:37:37+00:00 2018-06-26T20:37:37+00:00 Alan Douglas adouglas@cadence.com 2018-06-22T16:17:17+00:00 urn:sha1:68bb22e9d561ad7c20274eee92058048ac689b98 The endpoint library must be initialized before its users, which are in drivers/pci/controllers. The endpoint initialization currently depends on link order. This corrects a kernel crash when loading the Cadence EP driver, since it calls devm_pci_epc_create() and this is only valid once the endpoint library has been initialized. Fixes: 6e0832fa432e ("PCI: Collect all native drivers under drivers/pci/controller/") Signed-off-by: Alan Douglas <adouglas@cadence.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> 2018-06-08T12:50:11+00:00 Shawn Lin shawn.lin@rock-chips.com 2018-05-31T01:12:37+00:00 urn:sha1:6e0832fa432ec99c94caee733c8f5851cf85560b Native PCI drivers for root complex devices were originally all in drivers/pci/host/. Some of these devices can also be operated in endpoint mode. Drivers for endpoint mode didn't seem to fit in the "host" directory, so we put both the root complex and endpoint drivers in per-device directories, e.g., drivers/pci/dwc/, drivers/pci/cadence/, etc. These per-device directories contain trivial Kconfig and Makefiles and clutter drivers/pci/. Make a new drivers/pci/controllers/ directory and collect all the device-specific drivers there. No functional change intended. Link: https://lkml.kernel.org/r/1520304202-232891-1-git-send-email-shawn.lin@rock-chips.com Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> 2018-04-24T21:47:16+00:00 Alexander Duyck alexander.h.duyck@intel.com 2018-04-24T21:47:16+00:00 urn:sha1:a8ccf8a666639ca9184e8b23d515d9fbe722a27d Some SR-IOV PF devices provide no functionality other than acting as a means of enabling VFs. For these devices, we want to enable the VFs and assign them to guest virtual machines, but there's no need to have a driver for the PF itself. Add a new pci-pf-stub driver to claim those PF devices and provide the generic VF enable functionality. An administrator can use the sysfs "sriov_numvfs" file to enable VFs, then assign them to guests. For now I only have one example ID provided by Amazon in terms of devices that require this functionality. The general idea is that in the future we will see other devices added as vendors come up with devices where the PF is more or less just a lightweight shim used to allocate VFs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Greg Rose <gvrose8192@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> 2018-03-19T19:20:41+00:00 Bjorn Helgaas bhelgaas@google.com 2018-03-09T19:09:29+00:00 urn:sha1:3133e6dd07ed4b21a19ccdbbe4f033a2e4e9aad3 Indent things so they line up neatly and remove extra blank lines and superfluous comments. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> 2018-01-31T11:13:27+00:00 Cyrille Pitchen cyrille.pitchen@free-electrons.com 2018-01-30T20:56:59+00:00 urn:sha1:37dddf14f1aecd9fa89a5136b38b33cab54b9195 This patch adds support to the Cadence PCIe controller in endpoint mode. Since pieces of source code are shared with the host driver (Root Complex mode), we create a new directory under drivers/pci dedicated to the Cadence PCIe controller. The common code is placed into drivers/pci/cadence/pcie-cadence.c and used by both the host and endpoint controller drivers. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> 2018-01-31T11:09:20+00:00 Cyrille Pitchen cyrille.pitchen@free-electrons.com 2018-01-30T20:56:49+00:00 urn:sha1:9de0eec29c07a65c21323f934d84ce164b0d9205 Clean up drivers/Makefile by moving the pci/endpoint and pci/dwc entries from drivers/Makefile into drivers/pci/Makefile. Since we don't want to introduce any dependency between CONFIG_PCI and CONFIG_PCI_ENDPOINT, we now always execute drivers/pci/Makefile. Hence all Makefiles in drivers/pci/ were updated accordingly so no file is compiled when CONFIG_PCI is not defined. Also, we add a comment to reinforce that EPC and EPF libraries must be initialized before their users. Hence built-in EPC drivers, such as those of Designware, are linked after the endpoint core libraries. Finally, we add another comment to explain why obj-y has been chosen instead of obj-$(CONFIG_PCIE_DW) to parse the dwc/ sub-folder. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> 2017-11-26T22:11:54+00:00 Linus Torvalds torvalds@linux-foundation.org 2017-11-26T22:11:54+00:00 urn:sha1:02fc87b117a9b9ec325089d098fce86ed11966bd Pull misc x86 fixes from Ingo Molnar: - topology enumeration fixes - KASAN fix - two entry fixes (not yet the big series related to KASLR) - remove obsolete code - instruction decoder fix - better /dev/mem sanity checks, hopefully working better this time - pkeys fixes - two ACPI fixes - 5-level paging related fixes - UMIP fixes that should make application visible faults more debuggable - boot fix for weird virtualization environment * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) x86/decoder: Add new TEST instruction pattern x86/PCI: Remove unused HyperTransport interrupt support x86/umip: Fix insn_get_code_seg_params()'s return value x86/boot/KASLR: Remove unused variable x86/entry/64: Add missing irqflags tracing to native_load_gs_index() x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow x86/entry/64: Fix entry_SYSCALL_64_after_hwframe() IRQ tracing x86/pkeys/selftests: Fix protection keys write() warning x86/pkeys/selftests: Rename 'si_pkey' to 'siginfo_pkey' x86/mpx/selftests: Fix up weird arrays x86/pkeys: Update documentation about availability x86/umip: Print a warning into the syslog if UMIP-protected instructions are used x86/smpboot: Fix __max_logical_packages estimate x86/topology: Avoid wasting 128k for package id array perf/x86/intel/uncore: Cache logical pkg id in uncore driver x86/acpi: Reduce code duplication in mp_override_legacy_irq() x86/acpi: Handle SCI interrupts above legacy space gracefully x86/boot: Fix boot failure when SMP MP-table is based at 0 x86/mm: Limit mmap() of /dev/mem to valid physical addresses x86/selftests: Add test for mapping placement for 5-level paging ... 2017-11-23T19:18:18+00:00 Bjorn Helgaas bhelgaas@google.com 2017-11-22T22:13:37+00:00 urn:sha1:fd2fa6c18b729e19c51240453a521f76c766247e There are no in-tree callers of ht_create_irq(), the driver interface for HyperTransport interrupts, left. Remove the unused entry point and all the supporting code. See 8b955b0dddb3 ("[PATCH] Initial generic hypertransport interrupt support"). Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-pci@vger.kernel.org Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Link: https://lkml.kernel.org/r/20171122221337.3877.23362.stgit@bhelgaas-glaptop.roam.corp.google.com 2017-11-15T23:01:28+00:00 Linus Torvalds torvalds@linux-foundation.org 2017-11-15T23:01:28+00:00 urn:sha1:1b6115fbe3b3db746d7baa11399dd617fc75e1c4 Pull PCI updates from Bjorn Helgaas: - detach driver before tearing down procfs/sysfs (Alex Williamson) - disable PCIe services during shutdown (Sinan Kaya) - fix ASPM oops on systems with no Root Ports (Ard Biesheuvel) - fix ASPM LTR_L1.2_THRESHOLD programming (Bjorn Helgaas) - fix ASPM Common_Mode_Restore_Time computation (Bjorn Helgaas) - fix portdrv MSI/MSI-X vector allocation (Dongdong Liu, Bjorn Helgaas) - report non-fatal AER errors only to the affected endpoint (Gabriele Paoloni) - distribute bus numbers, MMIO, and I/O space among hotplug bridges to allow more devices to be hot-added (Mika Westerberg) - fix pciehp races during initialization and surprise link down (Mika Westerberg) - handle surprise-removed devices in PME handling (Qiang) - support resizable BARs for large graphics devices (Christian König) - expose SR-IOV offset, stride, and VF device ID via sysfs (Filippo Sironi) - create SR-IOV virtfn/physfn sysfs links before attaching driver (Stuart Hayes) - fix SR-IOV "ARI Capable Hierarchy" restore issue (Tony Nguyen) - enforce Kconfig IOV/REALLOC dependency (Sascha El-Sharkawy) - avoid slot reset if bridge itself is broken (Jan Glauber) - clean up pci_reset_function() path (Jan H. Schönherr) - make pci_map_rom() fail if the option ROM is invalid (Changbin Du) - convert timers to timer_setup() (Kees Cook) - move PCI_QUIRKS to PCI bus Kconfig menu (Randy Dunlap) - constify pci_dev_type and intel_mid_pci_ops (Bhumika Goyal) - remove unnecessary pci_dev, pci_bus, resource, pcibios_set_master() declarations (Bjorn Helgaas) - fix endpoint framework overflows and BUG()s (Dan Carpenter) - fix endpoint framework issues (Kishon Vijay Abraham I) - avoid broken Cavium CN8xxx bus reset behavior (David Daney) - extend Cavium ACS capability quirks (Vadim Lomovtsev) - support Synopsys DesignWare RC in ECAM mode (Ard Biesheuvel) - turn off dra7xx clocks cleanly on shutdown (Keerthy) - fix Faraday probe error path (Wei Yongjun) - support HiSilicon STB SoC PCIe host controller (Jianguo Sun) - fix Hyper-V interrupt affinity issue (Dexuan Cui) - remove useless ACPI warning for Hyper-V pass-through devices (Vitaly Kuznetsov) - support multiple MSI on iProc (Sandor Bodo-Merle) - support Layerscape LS1012a and LS1046a PCIe host controllers (Hou Zhiqiang) - fix Layerscape default error response (Minghuan Lian) - support MSI on Tango host controller (Marc Gonzalez) - support Tegra186 PCIe host controller (Manikanta Maddireddy) - use generic accessors on Tegra when possible (Thierry Reding) - support V3 Semiconductor PCI host controller (Linus Walleij) * tag 'pci-v4.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (85 commits) PCI/ASPM: Add L1 Substates definitions PCI/ASPM: Reformat ASPM register definitions PCI/ASPM: Use correct capability pointer to program LTR_L1.2_THRESHOLD PCI/ASPM: Account for downstream device's Port Common_Mode_Restore_Time PCI: xgene: Rename xgene_pcie_probe_bridge() to xgene_pcie_probe() PCI: xilinx: Rename xilinx_pcie_link_is_up() to xilinx_pcie_link_up() PCI: altera: Rename altera_pcie_link_is_up() to altera_pcie_link_up() PCI: Fix kernel-doc build warning PCI: Fail pci_map_rom() if the option ROM is invalid PCI: Move pci_map_rom() error path PCI: Move PCI_QUIRKS to the PCI bus menu alpha/PCI: Make pdev_save_srm_config() static PCI: Remove unused declarations PCI: Remove redundant pci_dev, pci_bus, resource declarations PCI: Remove redundant pcibios_set_master() declarations PCI/PME: Handle invalid data when reading Root Status PCI: hv: Use effective affinity mask PCI: pciehp: Do not clear Presence Detect Changed during initialization PCI: pciehp: Fix race condition handling surprise link down PCI: Distribute available resources to hotplug-capable bridges ... 2017-11-07T00:48:58+00:00 Mika Westerberg mika.westerberg@linux.intel.com 2017-10-13T18:35:41+00:00 urn:sha1:95e3ba9772331502cc33f1e1d4a96f3310e2f31e There is not much point of having a file with a single function in it. Instead we can just move pci_hp_add_bridge() to drivers/pci/probe.c and make it available always when PCI core is enabled. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> [bhelgaas: convert printk to dev_err()] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>