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2020-06-08Merge tag 's390-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds1-0/+8
Pull s390 updates from Vasily Gorbik: - Add support for multi-function devices in pci code. - Enable PF-VF linking for architectures using the pdev->no_vf_scan flag (currently just s390). - Add reipl from NVMe support. - Get rid of critical section cleanup in entry.S. - Refactor PNSO CHSC (perform network subchannel operation) in cio and qeth. - QDIO interrupts and error handling fixes and improvements, more refactoring changes. - Align ioremap() with generic code. - Accept requests without the prefetch bit set in vfio-ccw. - Enable path handling via two new regions in vfio-ccw. - Other small fixes and improvements all over the code. * tag 's390-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (52 commits) vfio-ccw: make vfio_ccw_regops variables declarations static vfio-ccw: Add trace for CRW event vfio-ccw: Wire up the CRW irq and CRW region vfio-ccw: Introduce a new CRW region vfio-ccw: Refactor IRQ handlers vfio-ccw: Introduce a new schib region vfio-ccw: Refactor the unregister of the async regions vfio-ccw: Register a chp_event callback for vfio-ccw vfio-ccw: Introduce new helper functions to free/destroy regions vfio-ccw: document possible errors vfio-ccw: Enable transparent CCW IPL from DASD s390/pci: Log new handle in clp_disable_fh() s390/cio, s390/qeth: cleanup PNSO CHSC s390/qdio: remove q->first_to_kick s390/qdio: fix up qdio_start_irq() kerneldoc s390: remove critical section cleanup from entry.S s390: add machine check SIGP s390/pci: ioremap() align with generic code s390/ap: introduce new ap function ap_get_qdev() Documentation/s390: Update / remove developerWorks web links ...
2020-06-04Merge branch 'pci/misc'Bjorn Helgaas1-11/+16
- Clarify that platform_get_irq() should never return 0 (Bjorn Helgaas) - Check for platform_get_irq() failure consistently (Bjorn Helgaas) - Replace zero-length array with flexible-array (Gustavo A. R. Silva) - Unify pcie_find_root_port() and pci_find_pcie_root_port() (Yicong Yang) - Quirk Intel C620 MROMs, which have non-BARs in BAR locations (Xiaochun Lee) - Fix pcie_pme_resume() and pcie_pme_remove() kernel-doc (Jay Fang) - Rename _DSM constants to align with spec (Krzysztof Wilczyński) * pci/misc: PCI: Rename _DSM constants to align with spec PCI/PME: Fix kernel-doc of pcie_pme_resume() and pcie_pme_remove() x86/PCI: Mark Intel C620 MROMs as having non-compliant BARs PCI: Unify pcie_find_root_port() and pci_find_pcie_root_port() PCI: Replace zero-length array with flexible-array PCI: Check for platform_get_irq() failure consistently driver core: platform: Clarify that IRQ 0 is invalid
2020-06-04Merge branch 'pci/error'Bjorn Helgaas1-2/+0
- Log only ACPI_NOTIFY_DISCONNECT_RECOVER events for EDR, not all ACPI SYSTEM-level events (Kuppuswamy Sathyanarayanan) - Rely only on _OSC (not _OSC + HEST FIRMWARE_FIRST) to negotiate AER Capability ownership (Alexandru Gagniuc) - Remove HEST/FIRMWARE_FIRST parsing that was previously used to help intuit AER Capability ownership (Kuppuswamy Sathyanarayanan) - Remove redundant pci_is_pcie() and dev->aer_cap checks (Kuppuswamy Sathyanarayanan) - Print IRQ number used by DPC (Yicong Yang) * pci/error: PCI/DPC: Print IRQ number used by port PCI/AER: Use "aer" variable for capability offset PCI/AER: Remove redundant dev->aer_cap checks PCI/AER: Remove redundant pci_is_pcie() checks PCI/AER: Remove HEST/FIRMWARE_FIRST parsing for AER ownership PCI/AER: Use only _OSC to determine AER ownership PCI/EDR: Log only ACPI_NOTIFY_DISCONNECT_RECOVER events
2020-06-01PCI/AER: Remove HEST/FIRMWARE_FIRST parsing for AER ownershipKuppuswamy Sathyanarayanan1-2/+0
Commit c100beb9ccfb ("PCI/AER: Use only _OSC to determine AER ownership") removed the use of HEST in determining AER ownership, but the AER driver still used HEST to verify AER ownership in some of its APIs. Per the ACPI spec v6.3, sec 18.3.2.4, some HEST table entries contain a FIRMWARE_FIRST bit, but that bit does not tell us anything about ownership of the AER capability. Remove parsing of HEST to look for FIRMWARE_FIRST. Add pcie_aer_is_native() for the places that need to know whether the OS owns the AER capability. [bhelgaas: commit log, reorder patch, remove unused __aer_firmware_first] Link: https://lore.kernel.org/r/9a37f53a4e6ff4942ff8e18dbb20b00e16c47341.1590534843.git.sathyanarayanan.kuppuswamy@linux.intel.com Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-05-21PCI: Use bridge window names (PCI_BRIDGE_IO_WINDOW etc)Krzysztof Wilczynski1-1/+13
Use bridge resource definitions instead of using the PCI_BRIDGE_RESOURCES constant with an integer offeset. Link: https://lore.kernel.org/r/20200520183411.1534621-2-kw@linux.com Signed-off-by: Krzysztof Wilczynski <kw@linux.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-05-20PCI/IOV: Introduce pci_iov_sysfs_link() functionNiklas Schnelle1-0/+8
Currently pci_iov_add_virtfn() scans the SR-IOV BARs, adds the VF to the bus and also creates the sysfs links between the newly added VF and its parent PF. With pdev->no_vf_scan fencing off the entire pci_iov_add_virtfn() call s390 as the sole pdev->no_vf_scan user thus ends up missing these sysfs links which are required for example by QEMU/libvirt. Instead of duplicating the code refactor pci_iov_add_virtfn() to make sysfs link creation callable separately. Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Pierre Morel <pmorel@linux.ibm.com> Link: https://lore.kernel.org/r/20200506154139.90609-1-schnelle@linux.ibm.com Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-05-14PCI: Unify pcie_find_root_port() and pci_find_pcie_root_port()Yicong Yang1-9/+14
Previously we used pcie_find_root_port() to find a Root Port from a PCIe device and pci_find_pcie_root_port() to find a Root Port from a Conventional PCI device. Unify the two functions and use pcie_find_root_port() to find a Root Port from either a Conventional PCI device or a PCIe device. Then there is no need to distinguish the type of the device. Link: https://lore.kernel.org/r/1589019568-5216-1-git-send-email-yangyicong@hisilicon.com Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> # thunderbolt
2020-05-12PCI: Replace zero-length array with flexible-arrayGustavo A. R. Silva1-2/+2
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these as a flexible array member [1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that dynamic memory allocations won't be affected by this change: Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero. [1] sizeof(flexible-array-member) triggers a warning because flexible array members have incomplete type [1]. There are some instances of code in which the sizeof() operator is being incorrectly/erroneously applied to zero-length arrays, and the result is zero. Such instances may be hiding some bugs. So, this work (flexible-array member conversions) will also help to get completely rid of those sorts of issues. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Link: https://lore.kernel.org/r/20200507190544.GA15633@embeddedor Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-04-03Merge tag 'pci-v5.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds1-2/+8
Pull pci updates from Bjorn Helgaas: "Enumeration: - Revert sysfs "rescan" renames that broke apps (Kelsey Skunberg) - Add more 32 GT/s link speed decoding and improve the implementation (Yicong Yang) Resource management: - Add support for sizing programmable host bridge apertures and fix a related alpha Nautilus regression (Ivan Kokshaysky) Interrupts: - Add boot interrupt quirk mechanism for Xeon chipsets and document boot interrupts (Sean V Kelley) PCIe native device hotplug: - When possible, disable in-band presence detect and use PDS (Alexandru Gagniuc) - Add DMI table for devices that don't use in-band presence detection but don't advertise that correctly (Stuart Hayes) - Fix hang when powering slots up/down via sysfs (Lukas Wunner) - Fix an MSI interrupt race (Stuart Hayes) Virtualization: - Add ACS quirks for Zhaoxin devices (Raymond Pang) Error handling: - Add Error Disconnect Recover (EDR) support so firmware can report devices disconnected via DPC and we can try to recover (Kuppuswamy Sathyanarayanan) Peer-to-peer DMA: - Add Intel Sky Lake-E Root Ports B, C, D to the whitelist (Andrew Maier) ASPM: - Reduce severity of common clock config message (Chris Packham) - Clear the correct bits when enabling L1 substates, so we don't go to the wrong state (Yicong Yang) Endpoint framework: - Replace EPF linkup ops with notifier call chain and improve locking (Kishon Vijay Abraham I) - Fix concurrent memory allocation in OB address region (Kishon Vijay Abraham I) - Move PF function number assignment to EPC core to support multiple function creation methods (Kishon Vijay Abraham I) - Fix issue with clearing configfs "start" entry (Kunihiko Hayashi) - Fix issue with endpoint MSI-X ignoring BAR Indicator and Table Offset (Kishon Vijay Abraham I) - Add support for testing DMA transfers (Kishon Vijay Abraham I) - Add support for testing > 10 endpoint devices (Kishon Vijay Abraham I) - Add support for tests to clear IRQ (Kishon Vijay Abraham I) - Add common DT schema for endpoint controllers (Kishon Vijay Abraham I) Amlogic Meson PCIe controller driver: - Add DT bindings for AXG PCIe PHY, shared MIPI/PCIe analog PHY (Remi Pommarel) - Add Amlogic AXG PCIe PHY, AXG MIPI/PCIe analog PHY drivers (Remi Pommarel) Cadence PCIe controller driver: - Add Root Complex/Endpoint DT schema for Cadence PCIe (Kishon Vijay Abraham I) Intel VMD host bridge driver: - Add two VMD Device IDs that require bus restriction mode (Sushma Kalakota) Mobiveil PCIe controller driver: - Refactor and modularize mobiveil driver (Hou Zhiqiang) - Add support for Mobiveil GPEX Gen4 host (Hou Zhiqiang) Microsoft Hyper-V host bridge driver: - Add support for Hyper-V PCI protocol version 1.3 and PCI_BUS_RELATIONS2 (Long Li) - Refactor to prepare for virtual PCI on non-x86 architectures (Boqun Feng) - Fix memory leak in hv_pci_probe()'s error path (Dexuan Cui) NVIDIA Tegra PCIe controller driver: - Use pci_parse_request_of_pci_ranges() (Rob Herring) - Add support for endpoint mode and related DT updates (Vidya Sagar) - Reduce -EPROBE_DEFER error message log level (Thierry Reding) Qualcomm PCIe controller driver: - Restrict class fixup to specific Qualcomm devices (Bjorn Andersson) Synopsys DesignWare PCIe controller driver: - Refactor core initialization code for endpoint mode (Vidya Sagar) - Fix endpoint MSI-X to use correct table address (Kishon Vijay Abraham I) TI DRA7xx PCIe controller driver: - Fix MSI IRQ handling (Vignesh Raghavendra) TI Keystone PCIe controller driver: - Allow AM654 endpoint to raise MSI-X interrupt (Kishon Vijay Abraham I) Miscellaneous: - Quirk ASMedia XHCI USB to avoid "PME# from D0" defect (Kai-Heng Feng) - Use ioremap(), not phys_to_virt(), for platform ROM to fix video ROM mapping with CONFIG_HIGHMEM (Mikel Rychliski)" * tag 'pci-v5.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (96 commits) misc: pci_endpoint_test: remove duplicate macro PCI_ENDPOINT_TEST_STATUS PCI: tegra: Print -EPROBE_DEFER error message at debug level misc: pci_endpoint_test: Use full pci-endpoint-test name in request_irq() misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices tools: PCI: Add 'e' to clear IRQ misc: pci_endpoint_test: Add ioctl to clear IRQ misc: pci_endpoint_test: Avoid using module parameter to determine irqtype PCI: keystone: Allow AM654 PCIe Endpoint to raise MSI-X interrupt PCI: dwc: Fix dw_pcie_ep_raise_msix_irq() to get correct MSI-X table address PCI: endpoint: Fix ->set_msix() to take BIR and offset as arguments misc: pci_endpoint_test: Add support to get DMA option from userspace tools: PCI: Add 'd' command line option to support DMA misc: pci_endpoint_test: Use streaming DMA APIs for buffer allocation PCI: endpoint: functions/pci-epf-test: Print throughput information PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data PCI: pciehp: Fix MSI interrupt race PCI: pciehp: Fix indefinite wait on sysfs requests PCI: endpoint: Fix clearing start entry in configfs PCI: tegra: Add support for PCIe endpoint mode in Tegra194 PCI: sysfs: Revert "rescan" file renames ...
2020-04-02Merge branch 'pci/resource'Bjorn Helgaas1-1/+1
- Use ioremap(), not phys_to_virt() for platform ROM, to fix video ROM mapping with CONFIG_HIGHMEM (Mikel Rychliski) - Add support for root bus sizing so we don't have to assume host bridge windows are known a priori (Ivan Kokshaysky) - Fix alpha Nautilus PCI setup, which has been broken since we started enforcing window limits in resource allocation (Ivan Kokshaysky) * pci/resource: alpha: Fix nautilus PCI setup PCI: Add support for root bus sizing PCI: Use ioremap(), not phys_to_virt() for platform ROM
2020-04-02Merge branch 'pci/enumeration'Bjorn Helgaas1-1/+1
- Add PCIe 32 GT/s speed decoding for sysfs "max_link_speed" and dmesg notes about available bandwidth (Yicong Yang) - Simplify and unify PCI bus/link speed reporting (Yicong Yang) * pci/enumeration: PCI: Add PCIE_LNKCAP2_SLS2SPEED() macro PCI: Use pci_speed_string() for all PCI/PCI-X/PCIe strings PCI: Add pci_speed_string() PCI: Add 32 GT/s decoding in some macros
2020-03-30PCI: Add support for root bus sizingIvan Kokshaysky1-0/+1
In certain cases we should be able to enumerate IO and MEM ranges of all PCI devices installed in the system, and then set respective host bridge apertures basing on calculated size and alignment. Particularly when firmware is broken and fails to assign bridge windows properly, like on Alpha UP1500 platform. Actually, almost everything is already in place, and required changes are minimal: - add "size_windows" flag to struct pci_host_bridge: when set, it instructs __pci_bus_size_bridges() to continue with the root bus; - in the __pci_bus_size_bridges() path: add checks for bus->self, as it can legitimately be null for the root bus. Link: https://lore.kernel.org/r/20200314194355.GA12510@mail.rc.ru Tested-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-03-30PCI: Use ioremap(), not phys_to_virt() for platform ROMMikel Rychliski1-1/+0
On some EFI systems, the video BIOS is provided by the EFI firmware. The boot stub code stores the physical address of the ROM image in pdev->rom. Currently we attempt to access this pointer using phys_to_virt(), which doesn't work with CONFIG_HIGHMEM. On these systems, attempting to load the radeon module on a x86_32 kernel can result in the following: BUG: unable to handle page fault for address: 3e8ed03c #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page *pde = 00000000 Oops: 0000 [#1] PREEMPT SMP CPU: 0 PID: 317 Comm: systemd-udevd Not tainted 5.6.0-rc3-next-20200228 #2 Hardware name: Apple Computer, Inc. MacPro1,1/Mac-F4208DC8, BIOS MP11.88Z.005C.B08.0707021221 07/02/07 EIP: radeon_get_bios+0x5ed/0xe50 [radeon] Code: 00 00 84 c0 0f 85 12 fd ff ff c7 87 64 01 00 00 00 00 00 00 8b 47 08 8b 55 b0 e8 1e 83 e1 d6 85 c0 74 1a 8b 55 c0 85 d2 74 13 <80> 38 55 75 0e 80 78 01 aa 0f 84 a4 03 00 00 8d 74 26 00 68 dc 06 EAX: 3e8ed03c EBX: 00000000 ECX: 3e8ed03c EDX: 00010000 ESI: 00040000 EDI: eec04000 EBP: eef3fc60 ESP: eef3fbe0 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010206 CR0: 80050033 CR2: 3e8ed03c CR3: 2ec77000 CR4: 000006d0 Call Trace: r520_init+0x26/0x240 [radeon] radeon_device_init+0x533/0xa50 [radeon] radeon_driver_load_kms+0x80/0x220 [radeon] drm_dev_register+0xa7/0x180 [drm] radeon_pci_probe+0x10f/0x1a0 [radeon] pci_device_probe+0xd4/0x140 Fix the issue by updating all drivers which can access a platform provided ROM. Instead of calling the helper function pci_platform_rom() which uses phys_to_virt(), call ioremap() directly on the pdev->rom. radeon_read_platform_bios() previously directly accessed an __iomem pointer. Avoid this by calling memcpy_fromio() instead of kmemdup(). pci_platform_rom() now has no remaining callers, so remove it. Link: https://lore.kernel.org/r/20200319021623.5426-1-mikel@mikelr.com Signed-off-by: Mikel Rychliski <mikel@mikelr.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-28PCI/DPC: Add Error Disconnect Recover (EDR) supportKuppuswamy Sathyanarayanan1-0/+1
Error Disconnect Recover (EDR) is a feature that allows ACPI firmware to notify OSPM that a device has been disconnected due to an error condition (ACPI v6.3, sec 5.6.6). OSPM advertises its support for EDR on PCI devices via _OSC (see [1], sec 4.5.1, table 4-4). The OSPM EDR notify handler should invalidate software state associated with disconnected devices and may attempt to recover them. OSPM communicates the status of recovery to the firmware via _OST (sec 6.3.5.2). For PCIe, firmware may use Downstream Port Containment (DPC) to support EDR. Per [1], sec 4.5.1, table 4-6, even if firmware has retained control of DPC, OSPM may read/write DPC control and status registers during the EDR notification processing window, i.e., from the time it receives an EDR notification until it clears the DPC Trigger Status. Note that per [1], sec 4.5.1 and 4.5.2.4, 1. If the OS supports EDR, it should advertise that to firmware by setting OSC_PCI_EDR_SUPPORT in _OSC Support. 2. If the OS sets OSC_PCI_EXPRESS_DPC_CONTROL in _OSC Control to request control of the DPC capability, it must also set OSC_PCI_EDR_SUPPORT in _OSC Support. Add an EDR notify handler to attempt recovery. [1] Downstream Port Containment Related Enhancements ECN, Jan 28, 2019, affecting PCI Firmware Specification, Rev. 3.2 https://members.pcisig.com/wg/PCI-SIG/document/12888 [bhelgaas: squash add/enable patches into one] Link: https://lore.kernel.org/r/90f91fe6d25c13f9d2255d2ce97ca15be307e1bb.1585000084.git.sathyanarayanan.kuppuswamy@linux.intel.com Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Len Brown <lenb@kernel.org>
2020-03-28PCI/DPC: Move DPC data into struct pci_devBjorn Helgaas1-0/+5
We only need 25 bits of data for DPC, so I don't think it's worth the complexity of allocating and keeping track of the struct dpc_dev separately from the pci_dev. Move that data into the struct pci_dev. Link: https://lore.kernel.org/r/98323eaa18080adbe5bb30846862f09f8722d4b3.1585000084.git.sathyanarayanan.kuppuswamy@linux.intel.com Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-03-27PCI: Add new PCI_VPD_RO_KEYWORD_SERIALNO macroVasundhara Volam1-0/+1
This patch adds a new macro for serial number keyword. Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-10PCI: Add pci_speed_string()Bjorn Helgaas1-1/+1
Add pci_speed_string() to return a text description of the supplied bus or link speed. The slot code previously used the private pci_bus_speed_strings[] array for this purpose, but adding this interface will enable us to consolidate similar code elsewhere. Export pcie_link_speed[] and pci_speed_string() so they can be used by modules. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-03-05PCI: Introduce pci_get_dsnJacob Keller1-0/+5
Several device drivers read their Device Serial Number from the PCIe extended config space. Introduce a new helper function, pci_get_dsn(). This function reads the eight bytes of the DSN and returns them as a u64. If the capability does not exist for the device, the function returns 0. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Michael Chan <michael.chan@broadcom.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-04PCI: Add pci_status_get_and_clear_errorsHeiner Kallweit1-0/+1
Several drivers use the following code sequence: 1. Read PCI_STATUS 2. Mask out non-error bits 3. Action based on error bits set 4. Write back set error bits to clear them As this is a repeated pattern, add a helper to the PCI core. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-04PCI: Add constant PCI_STATUS_ERROR_BITSHeiner Kallweit1-0/+7
This collection of PCI error bits is used in more than one driver, so move it to the PCI core. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-29Merge branch 'pci/host-vmd'Bjorn Helgaas1-0/+1
- Save VMD's pci_dev in x86 struct pci_sysdata (Jon Derrick) - Add pci_real_dma_dev() for DMA aliases not on the same bus as requester (Jon Derrick) - Add IOMMU mappings for pci_real_dma_dev() (Jon Derrick) - Remove IOMMU sanity checks for VMD devices (Jon Derrick) - Remove VMD dma_map_ops overrides (Jon Derrick) - Remove unused X86_DEV_DMA_OPS (Christoph Hellwig) - Add VMD device IDs that need bus restriction mode (Sushma Kalakota) * pci/host-vmd: PCI: vmd: Add two VMD Device IDs x86/PCI: Remove X86_DEV_DMA_OPS PCI: vmd: Remove dma_map_ops overrides iommu/vt-d: Remove VMD child device sanity check iommu/vt-d: Use pci_real_dma_dev() for mapping PCI: Introduce pci_real_dma_dev() x86/PCI: Expose VMD's pci_dev in struct pci_sysdata x86/PCI: Add to_pci_sysdata() helper
2020-01-24PCI: Introduce pci_real_dma_dev()Jon Derrick1-0/+1
The current DMA alias implementation requires the aliased device be on the same PCI bus as the requester ID. Add an arch-specific mechanism to point to another PCI device when doing mapping and PCI DMA alias search. The default case returns the actual device. Link: https://lore.kernel.org/r/1579613871-301529-4-git-send-email-jonathan.derrick@intel.com Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Christoph Hellwig <hch@lst.de>
2019-12-18PCI: Add nr_devfns parameter to pci_add_dma_alias()James Sewart1-1/+1
Add a "nr_devfns" parameter to pci_add_dma_alias() so it can be used to create DMA aliases for a range of devfns. [bhelgaas: incorporate nr_devfns fix from James, update quirk_pex_vca_alias() and setup_aliases()] Signed-off-by: James Sewart <jamessewart@arista.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-12-03Merge tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds1-33/+26
Pull PCI updates from Bjorn Helgaas: "Enumeration: - Warn if a host bridge has no NUMA info (Yunsheng Lin) - Add PCI_STD_NUM_BARS for the number of standard BARs (Denis Efremov) Resource management: - Fix boot-time Embedded Controller GPE storm caused by incorrect resource assignment after ACPI Bus Check Notification (Mika Westerberg) - Protect pci_reassign_bridge_resources() against concurrent addition/removal (Benjamin Herrenschmidt) - Fix bridge dma_ranges resource list cleanup (Rob Herring) - Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control the MMIO and prefetchable MMIO window sizes of hotplug bridges independently (Nicholas Johnson) - Fix MMIO/MMIO_PREF window assignment that assigned more space than desired (Nicholas Johnson) - Only enforce bus numbers from bridge EA if the bridge has EA devices downstream (Subbaraya Sundeep) - Consolidate DT "dma-ranges" parsing and convert all host drivers to use shared parsing (Rob Herring) Error reporting: - Restore AER capability after resume (Mayurkumar Patel) - Add PoisonTLPBlocked AER counter (Rajat Jain) - Use for_each_set_bit() to simplify AER code (Andy Shevchenko) - Fix AER kernel-doc (Andy Shevchenko) - Add "pcie_ports=dpc-native" parameter to allow native use of DPC even if platform didn't grant control over AER (Olof Johansson) Hotplug: - Avoid returning prematurely from sysfs requests to enable or disable a PCIe hotplug slot (Lukas Wunner) - Don't disable interrupts twice when suspending hotplug ports (Mika Westerberg) - Fix deadlocks when PCIe ports are hot-removed while suspended (Mika Westerberg) Power management: - Remove unnecessary ASPM locking (Bjorn Helgaas) - Add support for disabling L1 PM Substates (Heiner Kallweit) - Allow re-enabling Clock PM after it has been disabled (Heiner Kallweit) - Add sysfs attributes for controlling ASPM link states (Heiner Kallweit) - Remove CONFIG_PCIEASPM_DEBUG, including "link_state" and "clk_ctl" sysfs files (Heiner Kallweit) - Avoid AMD FCH XHCI USB PME# from D0 defect that prevents wakeup on USB 2.0 or 1.1 connect events (Kai-Heng Feng) - Move power state check out of pci_msi_supported() (Bjorn Helgaas) - Fix incorrect MSI-X masking on resume and revert related nvme quirk for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan) - Always return devices to D0 when thawing to fix hibernation with drivers like mlx4 that used legacy power management (previously we only did it for drivers with new power management ops) (Dexuan Cui) - Clear PCIe PME Status even for legacy power management (Bjorn Helgaas) - Fix PCI PM documentation errors (Bjorn Helgaas) - Use dev_printk() for more power management messages (Bjorn Helgaas) - Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas) - Convert xen-platform from legacy to generic power management (Bjorn Helgaas) - Removed unused .resume_early() and .suspend_late() legacy power management hooks (Bjorn Helgaas) - Rearrange power management code for clarity (Rafael J. Wysocki) - Decode power states more clearly ("4" or "D4" really refers to "D3cold") (Bjorn Helgaas) - Notice when reading PM Control register returns an error (~0) instead of interpreting it as being in D3hot (Bjorn Helgaas) - Add missing link delays required by the PCIe spec (Mika Westerberg) Virtualization: - Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn Helgaas) - Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Allow VFs to use PASID (the PF PASID capability is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Disconnect PF and VF ATS enablement, since ATS in PFs and associated VFs can be enabled independently (Kuppuswamy Sathyanarayanan) - Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan) - Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas) - Consolidate ATS declarations in linux/pci-ats.h (Krzysztof Wilczynski) - Remove unused PRI and PASID stubs (Bjorn Helgaas) - Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID interfaces that are only used by built-in IOMMU drivers (Bjorn Helgaas) - Hide PRI and PASID state restoration functions used only inside the PCI core (Bjorn Helgaas) - Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski) - Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut) - Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George Cherian) - Fix the UPDCR register address in the Intel ACS quirk (Steffen Liebergeld) - Unify ACS quirk implementations (Bjorn Helgaas) Amlogic Meson host bridge driver: - Fix meson PERST# GPIO polarity problem (Remi Pommarel) - Add DT bindings for Amlogic Meson G12A (Neil Armstrong) - Fix meson clock names to match DT bindings (Neil Armstrong) - Add meson support for Amlogic G12A SoC with separate shared PHY (Neil Armstrong) - Add meson extended PCIe PHY functions for Amlogic G12A USB3+PCIe combo PHY (Neil Armstrong) - Add arm64 DT for Amlogic G12A PCIe controller node (Neil Armstrong) - Add commented-out description of VIM3 USB3/PCIe mux in arm64 DT (Neil Armstrong) Broadcom iProc host bridge driver: - Invalidate iProc PAXB address mapping before programming it (Abhishek Shah) - Fix iproc-msi and mvebu __iomem annotations (Ben Dooks) Cadence host bridge driver: - Refactor Cadence PCIe host controller to use as a library for both host and endpoint (Tom Joseph) Freescale Layerscape host bridge driver: - Add layerscape LS1028a support (Xiaowei Bao) Intel VMD host bridge driver: - Add VMD bus 224-255 restriction decode (Jon Derrick) - Add VMD 8086:9A0B device ID (Jon Derrick) - Remove Keith from VMD maintainer list (Keith Busch) Marvell ARMADA 3700 / Aardvark host bridge driver: - Use LTSSM state to build link training flag since Aardvark doesn't implement the Link Training bit (Remi Pommarel) - Delay before training Aardvark link in case PERST# was asserted before the driver probe (Remi Pommarel) - Fix Aardvark issues with Root Control reads and writes (Remi Pommarel) - Don't rely on jiffies in Aardvark config access path since interrupts may be disabled (Remi Pommarel) - Fix Aardvark big-endian support (Grzegorz Jaszczyk) Marvell ARMADA 370 / XP host bridge driver: - Make mvebu_pci_bridge_emul_ops static (Ben Dooks) Microsoft Hyper-V host bridge driver: - Add hibernation support for Hyper-V virtual PCI devices (Dexuan Cui) - Track Hyper-V pci_protocol_version per-hbus, not globally (Dexuan Cui) - Avoid kmemleak false positive on hv hbus buffer (Dexuan Cui) Mobiveil host bridge driver: - Change mobiveil csr_read()/write() function names that conflict with riscv arch functions (Kefeng Wang) NVIDIA Tegra host bridge driver: - Fix Tegra CLKREQ dependency programming (Vidya Sagar) Renesas R-Car host bridge driver: - Remove unnecessary header include from rcar (Andrew Murray) - Tighten register index checking for rcar inbound range programming (Marek Vasut) - Fix rcar inbound range alignment calculation to improve packing of multiple entries (Marek Vasut) - Update rcar MACCTLR setting to match documentation (Yoshihiro Shimoda) - Clear bit 0 of MACCTLR before PCIETCTLR.CFINIT per manual (Yoshihiro Shimoda) - Add Marek Vasut and Yoshihiro Shimoda as R-Car maintainers (Simon Horman) Rockchip host bridge driver: - Make rockchip 0V9 and 1V8 power regulators non-optional (Robin Murphy) Socionext UniPhier host bridge driver: - Set uniphier to host (RC) mode always (Kunihiko Hayashi) Endpoint drivers: - Fix endpoint driver sign extension problem when shifting page number to phys_addr_t (Alan Mikhak) Misc: - Add NumaChip SPDX header (Krzysztof Wilczynski) - Replace EXTRA_CFLAGS with ccflags-y (Krzysztof Wilczynski) - Remove unused includes (Krzysztof Wilczynski) - Removed unused sysfs attribute groups (Ben Dooks) - Remove PTM and ASPM dependencies on PCIEPORTBUS (Bjorn Helgaas) - Add PCIe Link Control 2 register field definitions to replace magic numbers in AMDGPU and Radeon CIK/SI (Bjorn Helgaas) - Fix incorrect Link Control 2 Transmit Margin usage in AMDGPU and Radeon CIK/SI PCIe Gen3 link training (Bjorn Helgaas) - Use pcie_capability_read_word() instead of pci_read_config_word() in AMDGPU and Radeon CIK/SI (Frederick Lawler) - Remove unused pci_irq_get_node() Greg Kroah-Hartman) - Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig (Palmer Dabbelt, Michal Simek) - Read all 64 bits of Switchtec part_event_bitmap (Logan Gunthorpe) - Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn Helgaas) - Fix bridge emulation big-endian support (Grzegorz Jaszczyk) - Fix dwc find_next_bit() usage (Niklas Cassel) - Fix pcitest.c fd leak (Hewenliang) - Fix typos and comments (Bjorn Helgaas) - Fix Kconfig whitespace errors (Krzysztof Kozlowski)" * tag 'pci-v5.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (160 commits) PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist asm-generic: Make msi.h a mandatory include/asm header Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T" PCI/MSI: Fix incorrect MSI-X masking on resume PCI/MSI: Move power state check out of pci_msi_supported() PCI/MSI: Remove unused pci_irq_get_node() PCI: hv: Avoid a kmemleak false positive caused by the hbus buffer PCI: hv: Change pci_protocol_version to per-hbus PCI: hv: Add hibernation support PCI: hv: Reorganize the code in preparation of hibernation MAINTAINERS: Remove Keith from VMD maintainer PCI/ASPM: Remove PCIEASPM_DEBUG Kconfig option and related code PCI/ASPM: Add sysfs attributes for controlling ASPM link states PCI: Fix indentation drm/radeon: Prefer pcie_capability_read_word() drm/radeon: Replace numbers with PCI_EXP_LNKCTL2 definitions drm/radeon: Correct Transmit Margin masks drm/amdgpu: Prefer pcie_capability_read_word() PCI: uniphier: Set mode register to host mode drm/amdgpu: Replace numbers with PCI_EXP_LNKCTL2 definitions ...
2019-11-28Merge branch 'remotes/lorenzo/pci/mmio-dma-ranges'Bjorn Helgaas1-3/+6
- Consolidate DT "dma-ranges" parsing and convert all host drivers to use shared parsing (Rob Herring) * remotes/lorenzo/pci/mmio-dma-ranges: PCI: Make devm_of_pci_get_host_bridge_resources() static PCI: rcar: Use inbound resources for setup PCI: iproc: Use inbound resources for setup PCI: xgene: Use inbound resources for setup PCI: v3-semi: Use inbound resources for setup PCI: ftpci100: Use inbound resources for setup PCI: of: Add inbound resource parsing to helpers PCI: versatile: Enable COMPILE_TEST PCI: versatile: Remove usage of PHYS_OFFSET PCI: versatile: Use pci_parse_request_of_pci_ranges() PCI: xilinx-nwl: Use pci_parse_request_of_pci_ranges() PCI: xilinx: Use pci_parse_request_of_pci_ranges() PCI: xgene: Use pci_parse_request_of_pci_ranges() PCI: v3-semi: Use pci_parse_request_of_pci_ranges() PCI: rockchip: Drop storing driver private outbound resource data PCI: rockchip: Use pci_parse_request_of_pci_ranges() PCI: mobiveil: Use pci_parse_request_of_pci_ranges() PCI: mediatek: Use pci_parse_request_of_pci_ranges() PCI: iproc: Use pci_parse_request_of_pci_ranges() PCI: faraday: Use pci_parse_request_of_pci_ranges() PCI: dwc: Use pci_parse_request_of_pci_ranges() PCI: altera: Use pci_parse_request_of_pci_ranges() PCI: aardvark: Use pci_parse_request_of_pci_ranges() PCI: Export pci_parse_request_of_pci_ranges() resource: Add a resource_list_first_type helper # Conflicts: # drivers/pci/controller/pcie-rcar.c
2019-11-28Merge branch 'pci/virtualization'Bjorn Helgaas1-15/+3
- Fix erroneous intel-iommu dependency on CONFIG_AMD_IOMMU (Bjorn Helgaas) - Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI (Bjorn Helgaas) - Allow VFs to use PRI (the PF PRI is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Allow VFs to use PASID (the PF PASID capability is shared by the VFs, but the code previously didn't recognize that) (Kuppuswamy Sathyanarayanan) - Disconnect PF and VF ATS enablement, since ATS in PFs and associated VFs can be enabled independently (Kuppuswamy Sathyanarayanan) - Cache PRI and PASID capability offsets (Kuppuswamy Sathyanarayanan) - Cache the PRI PRG Response PASID Required bit (Bjorn Helgaas) - Consolidate ATS declarations in linux/pci-ats.h (Krzysztof Wilczynski) - Remove unused PRI and PASID stubs (Bjorn Helgaas) - Removed unnecessary EXPORT_SYMBOL_GPL() from ATS, PRI, and PASID interfaces that are only used by built-in IOMMU drivers (Bjorn Helgaas) - Hide PRI and PASID state restoration functions used only inside the PCI core (Bjorn Helgaas) - Fix the UPDCR register address in the Intel ACS quirk (Steffen Liebergeld) - Add a DMA alias quirk for the Intel VCA NTB (Slawomir Pawlowski) - Serialize sysfs sriov_numvfs reads vs writes (Pierre Crégut) - Update Cavium ACS quirk for ThunderX2 and ThunderX3 (George Cherian) - Unify ACS quirk implementations (Bjorn Helgaas) * pci/virtualization: PCI: Unify ACS quirk desired vs provided checking PCI: Make ACS quirk implementations more uniform PCI: Apply Cavium ACS quirk to ThunderX2 and ThunderX3 PCI/IOV: Serialize sysfs sriov_numvfs reads vs writes PCI: Add DMA alias quirk for Intel VCA NTB PCI: Fix Intel ACS quirk UPDCR register address PCI/ATS: Make pci_restore_pri_state(), pci_restore_pasid_state() private PCI/ATS: Remove unnecessary EXPORT_SYMBOL_GPL() PCI/ATS: Remove unused PRI and PASID stubs PCI/ATS: Consolidate ATS declarations in linux/pci-ats.h PCI/ATS: Cache PRI PRG Response PASID Required bit PCI/ATS: Cache PASID Capability offset PCI/ATS: Cache PRI Capability offset PCI/ATS: Disable PF/VF ATS service independently PCI/ATS: Handle sharing of PF PASID Capability with all VFs PCI/ATS: Handle sharing of PF PRI Capability with all VFs PCI/ATS: Move pci_prg_resp_pasid_required() to CONFIG_PCI_PRI iommu/vt-d: Select PCI_PRI for INTEL_IOMMU_SVM
2019-11-28Merge branch 'pci/resource'Bjorn Helgaas1-1/+1
- Protect pci_reassign_bridge_resources() against concurrent addition/removal (Benjamin Herrenschmidt) - Fix bridge dma_ranges resource list cleanup (Rob Herring) - Add PCI_STD_NUM_BARS for the number of standard BARs (Denis Efremov) - Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters to control the MMIO and prefetchable MMIO window sizes of hotplug bridges independently (Nicholas Johnson) - Fix MMIO/MMIO_PREF window assignment that assigned more space than desired (Nicholas Johnson) - Only enforce bus numbers from bridge EA if the bridge has EA devices downstream (Subbaraya Sundeep) * pci/resource: PCI: Do not use bus number zero from EA capability PCI: Avoid double hpmemsize MMIO window assignment PCI: Add "pci=hpmmiosize" and "pci=hpmmioprefsize" parameters PCI: Add PCI_STD_NUM_BARS for the number of standard BARs PCI: Fix missing bridge dma_ranges resource list cleanup PCI: Protect pci_reassign_bridge_resources() against concurrent addition/removal
2019-11-28Merge branch 'pci/pm'Bjorn Helgaas1-5/+9
- Always return devices to D0 when thawing to fix hibernation with drivers like mlx4 that used legacy power management (previously we only did it for drivers with new power management ops) (Dexuan Cui) - Clear PCIe PME Status even for legacy power management (Bjorn Helgaas) - Fix PCI PM documentation errors (Bjorn Helgaas) - Use dev_printk() for more power management messages (Bjorn Helgaas) - Apply D2 delay as milliseconds, not microseconds (Bjorn Helgaas) - Convert xen-platform from legacy to generic power management (Bjorn Helgaas) - Removed unused .resume_early() and .suspend_late() legacy power management hooks (Bjorn Helgaas) - Rearrange power management code for clarity (Rafael J. Wysocki) - Decode power states more clearly ("4" or "D4" really refers to "D3cold") (Bjorn Helgaas) - Notice when reading PM Control register returns an error (~0) instead of interpreting it as being in D3hot (Bjorn Helgaas) - Add missing link delays required by the PCIe spec (Mika Westerberg) * pci/pm: PCI/PM: Move pci_dev_wait() definition earlier PCI/PM: Add missing link delays required by the PCIe spec PCI/PM: Add pcie_wait_for_link_delay() PCI/PM: Return error when changing power state from D3cold PCI/PM: Decode D3cold power state correctly PCI/PM: Fold __pci_complete_power_transition() into its caller PCI/PM: Avoid exporting __pci_complete_power_transition() PCI/PM: Fold __pci_start_power_transition() into its caller PCI/PM: Use pci_power_up() in pci_set_power_state() PCI/PM: Move power state update away from pci_power_up() PCI/PM: Remove unused pci_driver.suspend_late() hook PCI/PM: Remove unused pci_driver.resume_early() hook xen-platform: Convert to generic power management PCI/PM: Simplify pci_set_power_state() PCI/PM: Expand PM reset messages to mention D3hot (not just D3) PCI/PM: Apply D2 delay as milliseconds, not microseconds PCI/PM: Use pci_WARN() to include device information PCI/PM: Use PCI dev_printk() wrappers for consistency PCI/PM: Wrap long lines in documentation PCI/PM: Note that PME can be generated from D0 PCI/PM: Make power management op coding style consistent PCI/PM: Run resume fixups before disabling wakeup events PCI/PM: Clear PCIe PME Status even for legacy power management PCI/PM: Correct pci_pm_thaw_noirq() documentation PCI/PM: Always return devices to D0 when thawing
2019-11-28Merge branch 'pci/msi'Bjorn Helgaas1-6/+0
- Remove unused pci_irq_get_node() Greg Kroah-Hartman) - Move power state check out of pci_msi_supported() (Bjorn Helgaas) - Fix incorrect MSI-X masking on resume and revert related nvme quirk for Kingston NVME SSD running FW E8FK11.T (Jian-Hong Pan) - Make asm/msi.h mandatory and simplify PCI_MSI_IRQ_DOMAIN Kconfig (Palmer Dabbelt, Michal Simek) * pci/msi: PCI: Remove PCI_MSI_IRQ_DOMAIN architecture whitelist asm-generic: Make msi.h a mandatory include/asm header Revert "nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T" PCI/MSI: Fix incorrect MSI-X masking on resume PCI/MSI: Move power state check out of pci_msi_supported() PCI/MSI: Remove unused pci_irq_get_node()
2019-11-26Merge tag 'sound-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds1-0/+2
Pull sound updates from Takashi Iwai: "There have been some significant changes in the core side, both for ALSA and ASoC, while lots of development have been seen in SOF, as well as many small fixes/improvements for ASoC codecs and platforms. Below is a highlight in this cycle: Core: - The unification of PCM vmalloc buffer allocation helpers into the standard API - Clean up of the default PCM mmap handling for vmalloc & SG-buffer - Fix potential races at ALSA timer open - A few new PCM API extensions; just preliminary core changes, the actual changes in drivers will be merged in 5.6 - Continued ASoC componentization works; now almost everything is a common ASoC component object. A lot of refactoring and simplification have been done along with it. ASoC: - Many fixes to the Sound Open Firmware (SOF) code - Wake on voice support for Chromebooks - SPI support and trigger word detection for RT5677 - New drivers for Analog Devices ADAU7118, Intel Cannonlake systems with RT1011 and RT5682, Texas Instruments TAS2562 and TAS2770 HD-audio: - Improved Intel DSP configuration / probe code for SOF - Plumbing the legacy HD-audio driver with Intel SOF HDMI - DP-MST support for Nvidia HDMI codecs - Realtek quirks cleanups and new additions as usual Others: - Lots of refactoring and cleanups for FireWire; period-size sharing, h/w IRQ interval configuration, clock recovery improvements, etc - USB-audio: Scarlett mixer quirks - Cleanups of PCM calls in various drivers (including media and USB) to adapt the core API changes" * tag 'sound-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (497 commits) ALSA: usb-audio: Fix Focusrite Scarlett 6i6 gen1 - input handling ALSA: hda/realtek - Enable internal speaker of ASUS UX431FLC ALSA: aloop: Fix dependency on timer API ASoC: DMI long name - avoid to add board name if matches with product name ASoC: improve the DMI long card code in asoc-core ASoC: rsnd: fix DALIGN register for SSIU ALSA: aloop: Avoid unexpected timer event callback tasklets ALSA: aloop: Remove redundant locking in timer open function ASoC: component: Add sync_stop PCM ops ASoC: pcm: Make ioctl ops optional ALSA: hda/hdmi - Clear codec->relaxed_resume flag at unbinding ALSA: hda - Disable audio component for legacy Nvidia HDMI codecs ALSA: cs4236: fix error return comparison of an unsigned integer ALSA: usb-audio: Fix NULL dereference at parsing BADD ALSA: usb-audio: Fix Scarlett 6i6 Gen 2 port data ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop ALSA: hda/realtek - Move some alc236 pintbls to fallback table ALSA: hda/realtek - Move some alc256 pintbls to fallback table ALSA: docs: Update about the new PCM sync_stop ops ALSA: pcm: Add card sync_irq field ...
2019-11-26PCI/MSI: Remove unused pci_irq_get_node()Greg Kroah-Hartman1-6/+0
The function pci_irq_get_node() is not used by anyone in the tree, so just delete it. Link: https://lore.kernel.org/r/20191014100452.GA6699@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Andrew Murray <andrew.murray@arm.com>
2019-11-20PCI/PM: Avoid exporting __pci_complete_power_transition()Rafael J. Wysocki1-1/+1
Notice that radeon_set_suspend(), which is the only caller of __pci_complete_power_transition() outside of pci.c, really only cares about the pci_platform_power_transition() invoked by it, so export the latter instead of it, update the radeon driver to call pci_platform_power_transition() directly and make __pci_complete_power_transition() static. Code rearrangement, no intentional functional impact. Link: https://lore.kernel.org/r/1731661.ykamz2Tiuf@kreacher Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2019-11-20PCI/PM: Remove unused pci_driver.suspend_late() hookBjorn Helgaas1-2/+0
The struct pci_driver.suspend_late() hook is one of the legacy PCI power management callbacks, and there are no remaining users of it. Remove it. Link: https://lore.kernel.org/r/20191101204558.210235-7-helgaas@kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-11-20PCI/PM: Remove unused pci_driver.resume_early() hookBjorn Helgaas1-2/+0
The struct pci_driver.resume_early() hook is one of the legacy PCI power management callbacks, and there are no remaining users of it. Remove it. Link: https://lore.kernel.org/r/20191101204558.210235-6-helgaas@kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-11-20PCI/PM: Use pci_WARN() to include device informationBjorn Helgaas1-0/+8
Add and use pci_WARN() wrappers so warnings include device information. Link: https://lore.kernel.org/r/20191017212851.54237-3-helgaas@kernel.org Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-11-20PCI: of: Add inbound resource parsing to helpersRob Herring1-3/+6
Extend devm_of_pci_get_host_bridge_resources() and pci_parse_request_of_pci_ranges() helpers to also parse the inbound addresses from DT 'dma-ranges' and populate a resource list with the translated addresses. This will help ensure 'dma-ranges' is always parsed in a consistent way. Tested-by: Srinath Mannam <srinath.mannam@broadcom.com> Tested-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> # for AArdvark Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Srinath Mannam <srinath.mannam@broadcom.com> Reviewed-by: Andrew Murray <andrew.murray@arm.com> Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Cc: Jingoo Han <jingoohan1@gmail.com> Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Will Deacon <will@kernel.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Toan Le <toan@os.amperecomputing.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Tom Joseph <tjoseph@cadence.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: Ryder Lee <ryder.lee@mediatek.com> Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in> Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Cc: Simon Horman <horms@verge.net.au> Cc: Shawn Lin <shawn.lin@rock-chips.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Michal Simek <michal.simek@xilinx.com> Cc: rfi@lists.rocketboards.org Cc: linux-mediatek@lists.infradead.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org
2019-10-21PCI: Fix missing inline for pci_pr3_present()Takashi Iwai1-1/+1
The inline prefix was missing in the dummy function pci_pr3_present() definition. Fix it. Reported-by: kbuild test robot <lkp@intel.com> Fixes: 52525b7a3cf8 ("PCI: Add a helper to check Power Resource Requirements _PR3 existence") Link: https://lore.kernel.org/r/201910212111.qHm6OcWx%lkp@intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-21PCI: Add a helper to check Power Resource Requirements _PR3 existenceKai-Heng Feng1-0/+2
A driver may want to know the existence of _PR3, to choose different runtime suspend behavior. A user will be add in next patch. This is mostly the same as nouveau_pr3_present(). Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20191018073848.14590-1-kai.heng.feng@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-15PCI/ATS: Consolidate ATS declarations in linux/pci-ats.hKrzysztof Wilczynski1-14/+0
Move ATS function prototypes from include/linux/pci.h to include/linux/pci-ats.h as the ATS, PRI, and PASID interfaces are related and are used only by the IOMMU drivers. This effectively reverts ff9bee895c4d ("PCI: Move ATS declarations to linux/pci.h so they're all together"). Also, remove surplus forward declaration of struct pci_ats from include/linux/pci.h, as it is no longer needed, since struct pci_ats was embedded directly into struct pci_dev by d544d75ac96a ("PCI: Embed ATS info directly into struct pci_dev"). No functional changes intended. Link: https://lore.kernel.org/r/20190914213032.22314-1-kw@linux.com Signed-off-by: Krzysztof Wilczynski <kw@linux.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-10-15PCI/ATS: Cache PRI PRG Response PASID Required bitBjorn Helgaas1-0/+1
The PRG Response PASID Required bit in the PRI Capability is read-only. Read it once when we enumerate the device and cache the value so we don't need to read it again. Based-on-patch-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-10-15PCI/ATS: Cache PASID Capability offsetKuppuswamy Sathyanarayanan1-0/+1
Previously each PASID interface searched for the PASID Capability. Cache the capability offset the first time we use it instead of searching each time. [bhelgaas: commit log, reorder patch to later, call pci_pasid_init() from pci_init_capabilities()] Link: https://lore.kernel.org/r/4957778959fa34eab3e8b3065d1951989c61cb0f.1567029860.git.sathyanarayanan.kuppuswamy@linux.intel.com Link: https://lore.kernel.org/r/20190905193146.90250-6-helgaas@kernel.org Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-10-15PCI/ATS: Cache PRI Capability offsetKuppuswamy Sathyanarayanan1-0/+1
Previously each PRI interface searched for the PRI Capability. Cache the capability offset the first time we use it instead of searching each time. [bhelgaas: commit log, reorder patch to later, call pci_pri_init() from pci_init_capabilities()] Link: https://lore.kernel.org/r/0c5495d376faf6dbb8eb2165204c474438aaae65.156 7029860.git.sathyanarayanan.kuppuswamy@linux.intel.com Link: https://lore.kernel.org/r/20190905193146.90250-5-helgaas@kernel.org Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-10-15PCI/ATS: Disable PF/VF ATS service independentlyKuppuswamy Sathyanarayanan1-1/+0
Previously we didn't disable the PF ATS until all associated VFs had disabled it. But per PCIe spec r5.0, sec 9.3.7.8, the ATS Capability in VFs and associated PFs may be enabled independently. Leaving ATS enabled in the PF unnecessarily may have power and performance impacts. Remove this dependency logic in the ATS enable/disable code. [bhelgaas: commit log] Suggested-by: Ashok Raj <ashok.raj@intel.com> Link: https://lore.kernel.org/r/8163ab8fa66afd2cba514ae95d29ab12104781aa.1567029860.git.sathyanarayanan.kuppuswamy@linux.intel.com Link: https://lore.kernel.org/r/20190905193146.90250-4-helgaas@kernel.org Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Ashok Raj <ashok.raj@intel.com> Cc: Keith Busch <keith.busch@intel.com>
2019-10-15PCI/ASPM: Add L1 PM substate support to pci_disable_link_state()Heiner Kallweit1-3/+7
Add support for disabling states L1.1 and L1.2 to pci_disable_link_state(). Allow separate control of ASPM and PCI PM L1 substates. Link: https://lore.kernel.org/r/d81f8036-c236-6463-48e7-ebcdcda85bba@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2019-10-14PCI: Add PCI_STD_NUM_BARS for the number of standard BARsDenis Efremov1-1/+1
Code that iterates over all standard PCI BARs typically uses PCI_STD_RESOURCE_END. However, that requires the unusual test "i <= PCI_STD_RESOURCE_END" rather than something the typical "i < PCI_STD_NUM_BARS". Add a definition for PCI_STD_NUM_BARS and change loops to use the more idiomatic C style to help avoid fencepost errors. Link: https://lore.kernel.org/r/20190927234026.23342-1-efremov@linux.com Link: https://lore.kernel.org/r/20190927234308.23935-1-efremov@linux.com Link: https://lore.kernel.org/r/20190916204158.6889-3-efremov@linux.com Signed-off-by: Denis Efremov <efremov@linux.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Sebastian Ott <sebott@linux.ibm.com> # arch/s390/ Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> # video/fbdev/ Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> # pci/controller/dwc/ Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com> # scsi/pm8001/ Acked-by: Martin K. Petersen <martin.petersen@oracle.com> # scsi/pm8001/ Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # memstick/
2019-10-10crypto: inside-secure - Remove #ifdef checksArnd Bergmann1-0/+1
When both PCI and OF are disabled, no drivers are registered, and we get some unused-function warnings: drivers/crypto/inside-secure/safexcel.c:1221:13: error: unused function 'safexcel_unregister_algorithms' [-Werror,-Wunused-function] static void safexcel_unregister_algorithms(struct safexcel_crypto_priv *priv) drivers/crypto/inside-secure/safexcel.c:1307:12: error: unused function 'safexcel_probe_generic' [-Werror,-Wunused-function] static int safexcel_probe_generic(void *pdev, drivers/crypto/inside-secure/safexcel.c:1531:13: error: unused function 'safexcel_hw_reset_rings' [-Werror,-Wunused-function] static void safexcel_hw_reset_rings(struct safexcel_crypto_priv *priv) It's better to make the compiler see what is going on and remove such ifdef checks completely. In case of PCI, this is trivial since pci_register_driver() is defined to an empty function that makes the compiler subsequently drop all unused code silently. The global pcireg_rc/ofreg_rc variables are not actually needed here since the driver registration does not fail in ways that would make it helpful. For CONFIG_OF, an IS_ENABLED() check is still required, since platform drivers can exist both with and without it. A little change to linux/pci.h is needed to ensure that pcim_enable_device() is visible to the driver. Moving the declaration outside of ifdef would be sufficient here, but for consistency with the rest of the file, adding an inline helper is probably best. Fixes: 212ef6f29e5b ("crypto: inside-secure - Fix unused variable warning when CONFIG_PCI=n") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci.h Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-23Merge tag 'pci-v5.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds1-84/+49
Pull PCI updates from Bjorn Helgaas: "Enumeration: - Consolidate _HPP/_HPX stuff in pci-acpi.c and simplify it (Krzysztof Wilczynski) - Fix incorrect PCIe device types and remove dev->has_secondary_link to simplify code that deals with upstream/downstream ports (Mika Westerberg) - After suspend, restore Resizable BAR size bits correctly for 1MB BARs (Sumit Saxena) - Enable PCI_MSI_IRQ_DOMAIN support for RISC-V (Wesley Terpstra) Virtualization: - Add ACS quirks for iProc PAXB (Abhinav Ratna), Amazon Annapurna Labs (Ali Saidi) - Move sysfs SR-IOV functions to iov.c (Kelsey Skunberg) - Remove group write permissions from sysfs sriov_numvfs, sriov_drivers_autoprobe (Kelsey Skunberg) Hotplug: - Simplify pciehp indicator control (Denis Efremov) Peer-to-peer DMA: - Allow P2P DMA between root ports for whitelisted bridges (Logan Gunthorpe) - Whitelist some Intel host bridges for P2P DMA (Logan Gunthorpe) - DMA map P2P DMA requests that traverse host bridge (Logan Gunthorpe) Amazon Annapurna Labs host bridge driver: - Add DT binding and controller driver (Jonathan Chocron) Hyper-V host bridge driver: - Fix hv_pci_dev->pci_slot use-after-free (Dexuan Cui) - Fix PCI domain number collisions (Haiyang Zhang) - Use instance ID bytes 4 & 5 as PCI domain numbers (Haiyang Zhang) - Fix build errors on non-SYSFS config (Randy Dunlap) i.MX6 host bridge driver: - Limit DBI register length (Stefan Agner) Intel VMD host bridge driver: - Fix config addressing issues (Jon Derrick) Layerscape host bridge driver: - Add bar_fixed_64bit property to endpoint driver (Xiaowei Bao) - Add CONFIG_PCI_LAYERSCAPE_EP to build EP/RC drivers separately (Xiaowei Bao) Mediatek host bridge driver: - Add MT7629 controller support (Jianjun Wang) Mobiveil host bridge driver: - Fix CPU base address setup (Hou Zhiqiang) - Make "num-lanes" property optional (Hou Zhiqiang) Tegra host bridge driver: - Fix OF node reference leak (Nishka Dasgupta) - Disable MSI for root ports to work around design problem (Vidya Sagar) - Add Tegra194 DT binding and controller support (Vidya Sagar) - Add support for sideband pins and slot regulators (Vidya Sagar) - Add PIPE2UPHY support (Vidya Sagar) Misc: - Remove unused pci_block_cfg_access() et al (Kelsey Skunberg) - Unexport pci_bus_get(), etc (Kelsey Skunberg) - Hide PM, VC, link speed, ATS, ECRC, PTM constants and interfaces in the PCI core (Kelsey Skunberg) - Clean up sysfs DEVICE_ATTR() usage (Kelsey Skunberg) - Mark expected switch fall-through (Gustavo A. R. Silva) - Propagate errors for optional regulators and PHYs (Thierry Reding) - Fix kernel command line resource_alignment parameter issues (Logan Gunthorpe)" * tag 'pci-v5.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (112 commits) PCI: Add pci_irq_vector() and other stubs when !CONFIG_PCI arm64: tegra: Add PCIe slot supply information in p2972-0000 platform arm64: tegra: Add configuration for PCIe C5 sideband signals PCI: tegra: Add support to enable slot regulators PCI: tegra: Add support to configure sideband pins PCI: vmd: Fix shadow offsets to reflect spec changes PCI: vmd: Fix config addressing when using bus offsets PCI: dwc: Add validation that PCIe core is set to correct mode PCI: dwc: al: Add Amazon Annapurna Labs PCIe controller driver dt-bindings: PCI: Add Amazon's Annapurna Labs PCIe host bridge binding PCI: Add quirk to disable MSI-X support for Amazon's Annapurna Labs Root Port PCI/VPD: Prevent VPD access for Amazon's Annapurna Labs Root Port PCI: Add ACS quirk for Amazon Annapurna Labs root ports PCI: Add Amazon's Annapurna Labs vendor ID MAINTAINERS: Add PCI native host/endpoint controllers designated reviewer PCI: hv: Use bytes 4 and 5 from instance ID as the PCI domain numbers dt-bindings: PCI: tegra: Add PCIe slot supplies regulator entries dt-bindings: PCI: tegra: Add sideband pins configuration entries PCI: tegra: Add Tegra194 PCIe support PCI: Get rid of dev->has_secondary_link flag ...
2019-09-23Merge branch 'pci/trivial'Bjorn Helgaas1-2/+2
- Fix typos and whitespace errors (Bjorn Helgaas, Krzysztof Wilczynski) - Remove unnecessary "return" statements (Krzysztof Wilczynski) - Correct of_irq_parse_pci() function documentation (Lubomir Rintel) * pci/trivial: PCI: Remove unnecessary returns PCI: OF: Correct of_irq_parse_pci() documentation PCI: Fix typos and whitespace errors
2019-09-23Merge branch 'pci/resource'Bjorn Helgaas1-16/+0
- Convert pci_resource_to_user() to a weak function to remove HAVE_ARCH_PCI_RESOURCE_TO_USER #defines (Denis Efremov) - Use PCI_SRIOV_NUM_BARS for idiomatic loop structure (Denis Efremov) - Fix Resizable BAR size suspend/restore for 1MB BARs (Sumit Saxena) - Correct "pci=resource_alignment" example in documentation (Alexey Kardashevskiy) * pci/resource: PCI: Correct pci=resource_alignment parameter example PCI: Restore Resizable BAR size bits correctly for 1MB BARs PCI: Use PCI_SRIOV_NUM_BARS in loops instead of PCI_IOV_RESOURCE_END PCI: Convert pci_resource_to_user() to a weak function # Conflicts: # drivers/pci/pci.c
2019-09-23Merge branch 'pci/misc'Bjorn Helgaas1-13/+29
- Use devm_add_action_or_reset() helper (Fuqian Huang) - Mark expected switch fall-through (Gustavo A. R. Silva) - Convert sysfs device attributes from __ATTR() to DEVICE_ATTR() (Kelsey Skunberg) - Convert sysfs file permissions from S_IRUSR etc to octal (Kelsey Skunberg) - Move SR-IOV sysfs functions to iov.c (Kelsey Skunberg) - Add pci_info_ratelimited() to ratelimit PCI messages separately (Krzysztof Wilczynski) - Fix "'static' not at beginning of declaration" warnings (Krzysztof Wilczynski) - Clean up resource_alignment parameter to not require static buffer (Logan Gunthorpe) - Add ACS quirk for iProc PAXB (Abhinav Ratna) - Add pci_irq_vector() and other stubs for !CONFIG_PCI (Herbert Xu) * pci/misc: PCI: Add pci_irq_vector() and other stubs when !CONFIG_PCI PCI: Add ACS quirk for iProc PAXB PCI: Force trailing new line to resource_alignment_param in sysfs PCI: Move pci_[get|set]_resource_alignment_param() into their callers PCI: Clean up resource_alignment parameter to not require static buffer PCI: Use static const struct, not const static struct PCI: Add pci_info_ratelimited() to ratelimit PCI separately PCI/IOV: Remove group write permission from sriov_numvfs, sriov_drivers_autoprobe PCI/IOV: Move sysfs SR-IOV functions to iov.c PCI: sysfs: Change permissions from symbolic to octal PCI: sysfs: Change DEVICE_ATTR() to DEVICE_ATTR_WO() PCI: sysfs: Define device attributes with DEVICE_ATTR*() PCI: Mark expected switch fall-through PCI: Use devm_add_action_or_reset()
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