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path: root/drivers/misc/pci_endpoint_test.c
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2024-01-15Merge branch 'pci/misc'Bjorn Helgaas1-2/+12
- Drop unused struct pci_driver.node member (Mathias Krause) - Fix documentation typos (Attreyee Mukherjee) - Use a unique test pattern for each BAR in the pci_endpoint_test to make it easier to debug address translation issues (Niklas Cassel) - Fix kernel-doc issues (Bjorn Helgaas) * pci/misc: PCI: Fix kernel-doc issues misc: pci_endpoint_test: Use a unique test pattern for each BAR docs: PCI: Fix typos PCI: Remove unused 'node' member from struct pci_driver
2024-01-15Merge branch 'pci/remove-old-api'Bjorn Helgaas1-3/+3
- In dw-xdata-pcie, pci_endpoint_test, and vmd, replace usage of deprecated ida_simple_*() API with ida_alloc() and ida_free() (Christophe JAILLET) * pci/remove-old-api: dw-xdata: Remove usage of the deprecated ida_simple_*() API misc: pci_endpoint_test: Remove usage of the deprecated ida_simple_*() API PCI: vmd: Remove usage of the deprecated ida_simple_*() API
2024-01-06misc: pci_endpoint_test: Use a unique test pattern for each BARNiklas Cassel1-2/+12
Use a unique test pattern for each BAR in. This makes it easier to detect/debug address translation issues, since a developer can dump the backing memory on the EP side, using e.g. devmem, to verify that the address translation for each BAR is actually correct. Link: https://lore.kernel.org/linux-pci/20231215105952.1531683-1-nks@flawful.org Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2023-12-31misc: pci_endpoint_test: Remove usage of the deprecated ida_simple_*() APIChristophe JAILLET1-3/+3
ida_alloc() and ida_free() should be preferred to the deprecated ida_simple_get() and ida_simple_remove() functions. This is also less verbose. Link: https://lore.kernel.org/linux-pci/47a30441242c4d5f0e00555cbddd7783350ff1b2.1702966523.git.christophe.jaillet@wanadoo.fr Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2023-12-18misc: pci_endpoint_test: Use INTX instead of LEGACYDamien Le Moal1-15/+15
In the root complex pci endpoint test function driver, change macros and functions names using the term "legacy" to use "intx" instead to match the term used in the PCI specifications. Link: https://lore.kernel.org/r/20231122060406.14695-6-dlemoal@kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-11-04Merge tag 'char-misc-6.7-rc1' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem changes for 6.7-rc1. Included in here are: - IIO subsystem driver updates and additions (largest part of this pull request) - FPGA subsystem driver updates - Counter subsystem driver updates - ICC subsystem driver updates - extcon subsystem driver updates - mei driver updates and additions - nvmem subsystem driver updates and additions - comedi subsystem dependency fixes - parport driver fixups - cdx subsystem driver and core updates - splice support for /dev/zero and /dev/full - other smaller driver cleanups All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (326 commits) cdx: add sysfs for subsystem, class and revision cdx: add sysfs for bus reset cdx: add support for bus enable and disable cdx: Register cdx bus as a device on cdx subsystem cdx: Create symbol namespaces for cdx subsystem cdx: Introduce lock to protect controller ops cdx: Remove cdx controller list from cdx bus system dts: ti: k3-am625-beagleplay: Add beaglecc1352 greybus: Add BeaglePlay Linux Driver dt-bindings: net: Add ti,cc1352p7 dt-bindings: eeprom: at24: allow NVMEM cells based on old syntax dt-bindings: nvmem: SID: allow NVMEM cells based on old syntax Revert "nvmem: add new config option" MAINTAINERS: coresight: Add missing Coresight files misc: pci_endpoint_test: Add deviceID for J721S2 PCIe EP device support firmware: xilinx: Move EXPORT_SYMBOL_GPL next to zynqmp_pm_feature definition uacce: make uacce_class constant ocxl: make ocxl_class constant cxl: make cxl_class constant misc: phantom: make phantom_class constant ...
2023-10-27misc: pci_endpoint_test: Add deviceID for J721S2 PCIe EP device supportSiddharth Vadapalli1-0/+4
Add DEVICE_ID for J721S2 and enable support for endpoints configured with this DEVICE_ID in the pci_endpoint_test driver. Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com> Cc: stable <stable@kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20231020120248.3168406-1-s-vadapalli@ti.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-10-23misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controllerYoshihiro Shimoda1-0/+4
Add Renesas R8A779F0 in pci_device_id table so that pci-epf-test can be used for testing PCIe EP on R-Car S4-8. Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-16-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Acked-by: Manivannan Sadhasivam <mani@kernel.org>
2023-06-23misc: pci_endpoint_test: Simplify pci_endpoint_test_msi_irq()Damien Le Moal1-8/+4
Simplify the code of pci_endpoint_test_msi_irq() by correctly using booleans: remove the msix comparison to false as that variable is already a boolean, and directly return the result of the comparison of the raised interrupt number. Link: https://lore.kernel.org/r/20230415023542.77601-18-dlemoal@kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
2023-06-23misc: pci_endpoint_test: Do not write status in IRQ handlerDamien Le Moal1-3/+0
pci_endpoint_test_irqhandler() always rewrites the status register when an IRQ is raised, either as-is if STATUS_IRQ_RAISED is not set, or with STATUS_IRQ_RAISED cleared if that flag is set. The first case creates a race window with the endpoint side, meaning that the host side test driver may end up reading what it just wrote, thus losing the real status as set by the endpoint side before raising the next interrupt. This can prevent detecting that the STATUS_IRQ_RAISED flag was set by the endpoint. Remove this race window by not clearing the STATUS_IRQ_RAISED status flag and not rewriting that register for every IRQ received. Link: https://lore.kernel.org/r/20230415023542.77601-17-dlemoal@kernel.org Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
2023-06-23misc: pci_endpoint_test: Re-init completion for every testDamien Le Moal1-0/+4
The irq_raised completion used to detect the end of a test case is initialized when the test device is probed, but never reinitialized again before a test case. As a result, the irq_raised completion synchronization is effective only for the first ioctl test case executed. Any subsequent call to wait_for_completion() by another ioctl() call will immediately return, potentially too early, leading to false positive failures. Fix this by reinitializing the irq_raised completion before starting a new ioctl() test command. Link: https://lore.kernel.org/r/20230415023542.77601-16-dlemoal@kernel.org Fixes: 2c156ac71c6b ("misc: Add host side PCI driver for PCI test function device") Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Cc: stable@vger.kernel.org
2023-06-23misc: pci_endpoint_test: Free IRQs before removing the deviceDamien Le Moal1-3/+3
In pci_endpoint_test_remove(), freeing the IRQs after removing the device creates a small race window for IRQs to be received with the test device memory already released, causing the IRQ handler to access invalid memory, resulting in an oops. Free the device IRQs before removing the device to avoid this issue. Link: https://lore.kernel.org/r/20230415023542.77601-15-dlemoal@kernel.org Fixes: e03327122e2c ("pci_endpoint_test: Add 2 ioctl commands") Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Cc: stable@vger.kernel.org
2023-02-22Merge branch 'pci/misc'Bjorn Helgaas1-1/+1
- Drop bogus kernel-doc marker in pci_endpoint_test.c (Randy Dunlap) - Fix epf_ntb_mw_bar_clear() kernel-doc (Yang Yingliang) - Constify struct kobj_type pci_slot_ktype (Thomas Weißschuh) * pci/misc: PCI: hv: Drop duplicate PCI_MSI dependency PCI/sysfs: Constify struct kobj_type pci_slot_ktype PCI: endpoint: pci-epf-vntb: Add epf_ntb_mw_bar_clear() num_mws kernel-doc misc: pci_endpoint_test: Drop initial kernel-doc marker
2023-01-17misc: pci_endpoint_test: Drop initial kernel-doc markerRandy Dunlap1-1/+1
This beginning comment is not kernel-doc, so change the "/**" to a normal "/*" comment to prevent a kernel-doc warning: drivers/misc/pci_endpoint_test.c:3: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Link: https://lore.kernel.org/r/20230113063937.20912-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Lorenzo Pieralisi <lpieralisi@kernel.org> Cc: Krzysztof Wilczyński <kw@linux.com> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: Kishon Vijay Abraham I <kishon@kernel.org> Cc: linux-pci@vger.kernel.org Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-16misc: pci_endpoint_test: Add i.MX8 PCIe EP device supportRichard Zhu1-0/+2
Set the DEVICE_ID of i.MX8 PCIe and add i.MX8 PCIE EP device support in pci_endpoint_test driver. Link: https://lore.kernel.org/r/1673847684-31893-11-git-send-email-hongxing.zhu@nxp.com Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
2022-09-09misc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panicShunsuke Mie1-0/+5
The dma_map_single() doesn't permit zero length mapping. It causes a follow panic. A panic was reported on arm64: [ 60.137988] ------------[ cut here ]------------ [ 60.142630] kernel BUG at kernel/dma/swiotlb.c:624! [ 60.147508] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 60.152992] Modules linked in: dw_hdmi_cec crct10dif_ce simple_bridge rcar_fdp1 vsp1 rcar_vin videobuf2_vmalloc rcar_csi2 v4l 2_mem2mem videobuf2_dma_contig videobuf2_memops pci_endpoint_test videobuf2_v4l2 videobuf2_common rcar_fcp v4l2_fwnode v4l2_asyn c videodev mc gpio_bd9571mwv max9611 pwm_rcar ccree at24 authenc libdes phy_rcar_gen3_usb3 usb_dmac display_connector pwm_bl [ 60.186252] CPU: 0 PID: 508 Comm: pcitest Not tainted 6.0.0-rc1rpci-dev+ #237 [ 60.193387] Hardware name: Renesas Salvator-X 2nd version board based on r8a77951 (DT) [ 60.201302] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 60.208263] pc : swiotlb_tbl_map_single+0x2c0/0x590 [ 60.213149] lr : swiotlb_map+0x88/0x1f0 [ 60.216982] sp : ffff80000a883bc0 [ 60.220292] x29: ffff80000a883bc0 x28: 0000000000000000 x27: 0000000000000000 [ 60.227430] x26: 0000000000000000 x25: ffff0004c0da20d0 x24: ffff80000a1f77c0 [ 60.234567] x23: 0000000000000002 x22: 0001000040000010 x21: 000000007a000000 [ 60.241703] x20: 0000000000200000 x19: 0000000000000000 x18: 0000000000000000 [ 60.248840] x17: 0000000000000000 x16: 0000000000000000 x15: ffff0006ff7b9180 [ 60.255977] x14: ffff0006ff7b9180 x13: 0000000000000000 x12: 0000000000000000 [ 60.263113] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 [ 60.270249] x8 : 0001000000000010 x7 : ffff0004c6754b20 x6 : 0000000000000000 [ 60.277385] x5 : ffff0004c0da2090 x4 : 0000000000000000 x3 : 0000000000000001 [ 60.284521] x2 : 0000000040000000 x1 : 0000000000000000 x0 : 0000000040000010 [ 60.291658] Call trace: [ 60.294100] swiotlb_tbl_map_single+0x2c0/0x590 [ 60.298629] swiotlb_map+0x88/0x1f0 [ 60.302115] dma_map_page_attrs+0x188/0x230 [ 60.306299] pci_endpoint_test_ioctl+0x5e4/0xd90 [pci_endpoint_test] [ 60.312660] __arm64_sys_ioctl+0xa8/0xf0 [ 60.316583] invoke_syscall+0x44/0x108 [ 60.320334] el0_svc_common.constprop.0+0xcc/0xf0 [ 60.325038] do_el0_svc+0x2c/0xb8 [ 60.328351] el0_svc+0x2c/0x88 [ 60.331406] el0t_64_sync_handler+0xb8/0xc0 [ 60.335587] el0t_64_sync+0x18c/0x190 [ 60.339251] Code: 52800013 d2e00414 35fff45c d503201f (d4210000) [ 60.345344] ---[ end trace 0000000000000000 ]--- To fix it, this patch adds a checking the payload length if it is zero. Fixes: 343dc693f7b7 ("misc: pci_endpoint_test: Prevent some integer overflows") Cc: stable <stable@kernel.org> Signed-off-by: Shunsuke Mie <mie@igel.co.jp> Link: https://lore.kernel.org/r/20220907020100.122588-2-mie@igel.co.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-09misc: pci_endpoint_test: Aggregate params checking for xferShunsuke Mie1-6/+23
Each transfer test functions have same parameter checking code. This patch unites those to an introduced function. Signed-off-by: Shunsuke Mie <mie@igel.co.jp> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20220907020100.122588-1-mie@igel.co.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-11misc: pci_endpoint_test: Terminate statement with semicolonMing Wang1-1/+1
Terminate the misc_device->fops assignment statement with a semicolon. Link: https://lore.kernel.org/r/1641632977-6588-1-git-send-email-wangming01@loongson.cn Fixes: 2c156ac71c6b ("misc: Add host side PCI driver for PCI test function device") Signed-off-by: Ming Wang <wangming01@loongson.cn> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-09-08Merge tag 'pci-v5.15-changes' of ↵Linus Torvalds1-0/+9
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Enumeration: - Convert controller drivers to generic_handle_domain_irq() (Marc Zyngier) - Simplify VPD (Vital Product Data) access and search (Heiner Kallweit) - Update bnx2, bnx2x, bnxt, cxgb4, cxlflash, sfc, tg3 drivers to use simplified VPD interfaces (Heiner Kallweit) - Run Max Payload Size quirks before configuring MPS; work around ASMedia ASM1062 SATA MPS issue (Marek Behún) Resource management: - Refactor pci_ioremap_bar() and pci_ioremap_wc_bar() (Krzysztof Wilczyński) - Optimize pci_resource_len() to reduce kernel size (Zhen Lei) PCI device hotplug: - Fix a double unmap in ibmphp (Vishal Aslot) PCIe port driver: - Enable Bandwidth Notification only if port supports it (Stuart Hayes) Sysfs/proc/syscalls: - Add schedule point in proc_bus_pci_read() (Krzysztof Wilczyński) - Return ~0 data on pciconfig_read() CAP_SYS_ADMIN failure (Krzysztof Wilczyński) - Return "int" from pciconfig_read() syscall (Krzysztof Wilczyński) Virtualization: - Extend "pci=noats" to also turn on Translation Blocking to protect against some DMA attacks (Alex Williamson) - Add sysfs mechanism to control the type of reset used between device assignments to VMs (Amey Narkhede) - Add support for ACPI _RST reset method (Shanker Donthineni) - Add ACS quirks for Cavium multi-function devices (George Cherian) - Add ACS quirks for NXP LX2xx0 and LX2xx2 platforms (Wasim Khan) - Allow HiSilicon AMBA devices that appear as fake PCI devices to use PASID and SVA (Zhangfei Gao) Endpoint framework: - Add support for SR-IOV Endpoint devices (Kishon Vijay Abraham I) - Zero-initialize endpoint test tool parameters so we don't use random parameters (Shunyong Yang) APM X-Gene PCIe controller driver: - Remove redundant dev_err() call in xgene_msi_probe() (ErKun Yang) Broadcom iProc PCIe controller driver: - Don't fail devm_pci_alloc_host_bridge() on missing 'ranges' because it's optional on BCMA devices (Rob Herring) - Fix BCMA probe resource handling (Rob Herring) Cadence PCIe driver: - Work around J7200 Link training electrical issue by increasing delays in LTSSM (Nadeem Athani) Intel IXP4xx PCI controller driver: - Depend on ARCH_IXP4XX to avoid useless config questions (Geert Uytterhoeven) Intel Keembay PCIe controller driver: - Add Intel Keem Bay PCIe controller (Srikanth Thokala) Marvell Aardvark PCIe controller driver: - Work around config space completion handling issues (Evan Wang) - Increase timeout for config access completions (Pali Rohár) - Emulate CRS Software Visibility bit (Pali Rohár) - Configure resources from DT 'ranges' property to fix I/O space access (Pali Rohár) - Serialize INTx mask/unmask (Pali Rohár) MediaTek PCIe controller driver: - Add MT7629 support in DT (Chuanjia Liu) - Fix an MSI issue (Chuanjia Liu) - Get syscon regmap ("mediatek,generic-pciecfg"), IRQ number ("pci_irq"), PCI domain ("linux,pci-domain") from DT properties if present (Chuanjia Liu) Microsoft Hyper-V host bridge driver: - Add ARM64 support (Boqun Feng) - Support "Create Interrupt v3" message (Sunil Muthuswamy) NVIDIA Tegra PCIe controller driver: - Use seq_puts(), move err_msg from stack to static, fix OF node leak (Christophe JAILLET) NVIDIA Tegra194 PCIe driver: - Disable suspend when in Endpoint mode (Om Prakash Singh) - Fix MSI-X address programming error (Om Prakash Singh) - Disable interrupts during suspend to avoid spurious AER link down (Om Prakash Singh) Renesas R-Car PCIe controller driver: - Work around hardware issue that prevents Link L1->L0 transition (Marek Vasut) - Fix runtime PM refcount leak (Dinghao Liu) Rockchip DesignWare PCIe controller driver: - Add Rockchip RK356X host controller driver (Simon Xue) TI J721E PCIe driver: - Add support for J7200 and AM64 (Kishon Vijay Abraham I) Toshiba Visconti PCIe controller driver: - Add Toshiba Visconti PCIe host controller driver (Nobuhiro Iwamatsu) Xilinx NWL PCIe controller driver: - Enable PCIe reference clock via CCF (Hyun Kwon) Miscellaneous: - Convert sta2x11 from 'pci_' to 'dma_' API (Christophe JAILLET) - Fix pci_dev_str_match_path() alloc while atomic bug (used for kernel parameters that specify devices) (Dan Carpenter) - Remove pointless Precision Time Management warning when PTM is present but not enabled (Jakub Kicinski) - Remove surplus "break" statements (Krzysztof Wilczyński)" * tag 'pci-v5.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (132 commits) PCI: ibmphp: Fix double unmap of io_mem x86/PCI: sta2x11: switch from 'pci_' to 'dma_' API PCI/VPD: Use unaligned access helpers PCI/VPD: Clean up public VPD defines and inline functions cxgb4: Use pci_vpd_find_id_string() to find VPD ID string PCI/VPD: Add pci_vpd_find_id_string() PCI/VPD: Include post-processing in pci_vpd_find_tag() PCI/VPD: Stop exporting pci_vpd_find_info_keyword() PCI/VPD: Stop exporting pci_vpd_find_tag() PCI: Set dma-can-stall for HiSilicon chips PCI: rockchip-dwc: Add Rockchip RK356X host controller driver PCI: dwc: Remove surplus break statement after return PCI: artpec6: Remove local code block from switch statement PCI: artpec6: Remove surplus break statement after return MAINTAINERS: Add entries for Toshiba Visconti PCIe controller PCI: visconti: Add Toshiba Visconti PCIe host controller driver PCI/portdrv: Enable Bandwidth Notification only if port supports it PCI: Allow PASID on fake PCIe devices without TLP prefixes PCI: mediatek: Use PCI domain to handle ports detection PCI: mediatek: Add new method to get irq number ...
2021-09-02Merge branch 'remotes/lorenzo/pci/endpoint'Bjorn Helgaas1-0/+1
- Add max-virtual-functions to endpoint binding (Kishon Vijay Abraham I) - Add pci_epf_add_vepf() API to add virtual function to endpoint (Kishon Vijay Abraham I) - Add pci_epf_vepf_link() to link virtual function to endpoint physical function (Kishon Vijay Abraham I) - Add virtual function number to pci_epc_ops endpoint ops interfaces (Kishon Vijay Abraham I) - Simplify register base address computation for endpoint BAR configuration (Kishon Vijay Abraham I) - Add support to configure virtual functions in cadence endpoint driver (Kishon Vijay Abraham I) - Add SR-IOV configuration to endpoint test driver (Kishon Vijay Abraham I) - Document configfs usage to create virtual functions for endpoints (Kishon Vijay Abraham I) * remotes/lorenzo/pci/endpoint: Documentation: PCI: endpoint/pci-endpoint-cfs: Guide to use SR-IOV misc: pci_endpoint_test: Populate sriov_configure ops to configure SR-IOV device PCI: cadence: Add support to configure virtual functions PCI: cadence: Simplify code to get register base address for configuring BAR PCI: endpoint: Add virtual function number in pci_epc ops PCI: endpoint: Add support to link a physical function to a virtual function PCI: endpoint: Add support to add virtual function in endpoint core dt-bindings: PCI: pci-ep: Add binding to specify virtual function
2021-08-19misc: pci_endpoint_test: Add deviceID for AM64 and J7200Kishon Vijay Abraham I1-0/+8
Add device ID specific to AM64 and J7200 in pci_endpoint_test so that endpoints configured with those deviceIDs can use pci_endpoint_test driver. Link: https://lore.kernel.org/r/20210811123336.31357-6-kishon@ti.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2021-08-19misc: pci_endpoint_test: Populate sriov_configure ops to configure SR-IOV deviceKishon Vijay Abraham I1-0/+1
Populate sriov_configure ops with pci_sriov_configure_simple to configure SR-IOV device. Link: https://lore.kernel.org/r/20210819123343.1951-8-kishon@ti.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2021-07-21misc: pci_endpoint_test: Ensure relationship between miscdev and PCIRichard Weinberger1-0/+1
Set the parent pointer of the misc device to ensure a relationship between PCI and misc dev. That way it is possible to see in /sys/class/misc/ which pci_endpoint_test instance serves what PCI device. Signed-off-by: Richard Weinberger <richard@nod.at> Link: https://lore.kernel.org/r/20210706154310.26773-1-richard@nod.at Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-23PCI: Add TI J721E device to PCI IDsKishon Vijay Abraham I1-1/+0
Add TI J721E device to the PCI ID database. Since this device has a configurable PCIe endpoint, it could be used with different drivers. Link: https://lore.kernel.org/r/20210201195809.7342-15-kishon@ti.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-12-09misc: pci_endpoint_test: fix return value of error branchXiongfeng Wang1-2/+6
We return 'err' in the error branch, but this variable may be set as zero before. Fix it by setting 'err' as a negative value before we goto the error label. Fixes: e03327122e2c ("pci_endpoint_test: Add 2 ioctl commands") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com> Link: https://lore.kernel.org/r/1605790158-6780-1-git-send-email-wangxiongfeng2@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-03misc: pci_endpoint_test: Remove unnecessary verificationGustavo Pimentel1-1/+1
The first condition of the if statement can never be true, because bar variable is an enum variable type defined between 0 and 5, and also bar variable acquires the value from arg function parameter which is an unsigned long variable. The constant 5 was replaced the the equivalent enum type, in this case BAR_5. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Link: https://lore.kernel.org/r/142cbbc215bed4243a219ea17b46f4256ceccb22.1603315690.git.gustavo.pimentel@synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-21Merge branch 'remotes/lorenzo/pci/rcar'Bjorn Helgaas1-2/+7
- Document R8A774A1, R8A774B1, R8A774E1 endpoint support in DT (Lad Prabhakar) - Add R8A774A1, R8A774B1, R8A774E1 (RZ/G2M, RZ/G2N, RZ/G2H) IDs to endpoint test (Lad Prabhakar) - Add device tree support for R8A7742 (Lad Prabhakar) - Use "fallthrough" pseudo-keyword (Gustavo A. R. Silva) * remotes/lorenzo/pci/rcar: dt-bindings: PCI: rcar: Add device tree support for r8a7742 PCI: rcar-gen2: Use fallthrough pseudo-keyword misc: pci_endpoint_test: Add Device ID for RZ/G2H PCIe controller dt-bindings: pci: rcar-pci-ep: Document r8a774e1 misc: pci_endpoint_test: Add Device ID for RZ/G2M and RZ/G2N PCIe controllers dt-bindings: pci: rcar-pci-ep: Document r8a774a1 and r8a774b1
2020-09-24misc: pci_endpoint_test: Add driver data for Layerscape PCIe controllersHou Zhiqiang1-2/+6
The commit 0a121f9bc3f5 ("misc: pci_endpoint_test: Use streaming DMA APIs for buffer allocation") changed to use streaming DMA APIs, however, dma_map_single() might not return a 4KB aligned address, so add the default_data as driver data for Layerscape PCIe controllers to make it 4KB aligned. Link: https://lore.kernel.org/r/20200918080024.13639-13-Zhiqiang.Hou@nxp.com Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Rob Herring <robh@kernel.org>
2020-09-24misc: pci_endpoint_test: Add LS1088a in pci_device_id tableXiaowei Bao1-0/+2
Add LS1088a in pci_device_id table so that pci-epf-test can be used for testing PCIe EP in LS1088a. Link: https://lore.kernel.org/r/20200918080024.13639-12-Zhiqiang.Hou@nxp.com Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Andrew Murray <andrew.murray@arm.com>
2020-09-07misc: pci_endpoint_test: Add Device ID for RZ/G2H PCIe controllerLad Prabhakar1-0/+2
Add Renesas R8A774E1 in pci_device_id table so that pci-epf-test can be used for testing PCIe EP on RZ/G2H. Link: https://lore.kernel.org/r/20200904103851.3946-4-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-07misc: pci_endpoint_test: Add Device ID for RZ/G2M and RZ/G2N PCIe controllersLad Prabhakar1-2/+5
Add Renesas R8A774A1 and R8A774B1 in pci_device_id table so that pci-epf-test can be used for testing PCIe EP on RZ/G2M and RZ/G2N. Link: https://lore.kernel.org/r/20200814173037.17822-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-08-03misc: pci_endpoint_test: Add J721E in pci_device_id tableKishon Vijay Abraham I1-0/+9
Add J721E in pci_device_id table so that pci-epf-test can be used for testing PCIe EP in J721E. Link: https://lore.kernel.org/r/20200722110317.4744-15-kishon@ti.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Rob Herring <robh@kernel.org>
2020-05-19misc: pci_endpoint_test: Add Device ID for RZ/G2E PCIe controllerLad Prabhakar1-0/+4
Add Renesas R8A774C0 in pci_device_id table so that pci-epf-test can be used for testing PCIe EP on RZ/G2E. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/1589493809-2602-1-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-02misc: pci_endpoint_test: remove duplicate macro PCI_ENDPOINT_TEST_STATUSLad Prabhakar1-1/+0
PCI_ENDPOINT_TEST_STATUS is already defined in pci_endpoint_test.c along with the status bits, drop the duplicate definition. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2020-04-02misc: pci_endpoint_test: Use full pci-endpoint-test name in request_irq()Kishon Vijay Abraham I1-6/+19
Use full pci-endpoint-test name in request_irq(), so that it's easy to profile the device that actually raised the interrupt. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2020-04-02misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devicesKishon Vijay Abraham I1-1/+1
Adding more than 10 pci-endpoint-test devices results in "kobject_add_internal failed for pci-endpoint-test.1 with -EEXIST, don't try to register things with the same name in the same directory". This is because commit 2c156ac71c6b ("misc: Add host side PCI driver for PCI test function device") limited the length of the "name" to 20 characters. Change the length of the name to 24 in order to support upto 10000 pci-endpoint-test devices. Fixes: 2c156ac71c6b ("misc: Add host side PCI driver for PCI test function device") Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: stable@vger.kernel.org # v4.14+
2020-04-02misc: pci_endpoint_test: Add ioctl to clear IRQKishon Vijay Abraham I1-0/+10
Add ioctl to clear IRQ which can be used to free the allocated IRQ vectors and free the requested IRQ. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2020-04-02misc: pci_endpoint_test: Avoid using module parameter to determine irqtypeKishon Vijay Abraham I1-3/+9
commit e03327122e2c ("pci_endpoint_test: Add 2 ioctl commands") uses module parameter 'irqtype' in pci_endpoint_test_set_irq() to check if IRQ vectors of a particular type (MSI or MSI-X or LEGACY) is already allocated. However with multi-function devices, 'irqtype' will not correctly reflect the IRQ type of the PCI device. Fix it here by adding 'irqtype' for each PCI device to show the IRQ type of a particular PCI device. Fixes: e03327122e2c ("pci_endpoint_test: Add 2 ioctl commands") Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: stable@vger.kernel.org # v4.19+
2020-04-02misc: pci_endpoint_test: Add support to get DMA option from userspaceKishon Vijay Abraham I1-3/+62
'pcitest' utility now uses '-d' option to allow the user to test DMA. Add support to parse option to use DMA from userspace application. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Tested-by: Alan Mikhak <alan.mikhak@sifive.com>
2020-04-02misc: pci_endpoint_test: Use streaming DMA APIs for buffer allocationKishon Vijay Abraham I1-21/+79
Use streaming DMA APIs (dma_map_single/dma_unmap_single) for buffers transmitted/received by the endpoint device instead of allocating a coherent memory. Also add default_data to set the alignment to 4KB since dma_map_single might not return a 4KB aligned address. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Tested-by: Alan Mikhak <alan.mikhak@sifive.com>
2019-10-14PCI: Add PCI_STD_NUM_BARS for the number of standard BARsDenis Efremov1-4/+4
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/
2019-07-17Merge tag 'dmaengine-5.3-rc1' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds1-1/+1
Pull dmaengine updates from Vinod Koul: - Add support in dmaengine core to do device node checks for DT devices and update bunch of drivers to use that and remove open coding from drivers - New driver/driver support for new hardware, namely: - MediaTek UART APDMA - Freescale i.mx7ulp edma2 - Synopsys eDMA IP core version 0 - Allwinner H6 DMA - Updates to axi-dma and support for interleaved cyclic transfers - Greg's debugfs return value check removals on drivers - Updates to stm32-dma, hsu, dw, pl330, tegra drivers * tag 'dmaengine-5.3-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (68 commits) dmaengine: Revert "dmaengine: fsl-edma: add i.mx7ulp edma2 version support" dmaengine: at_xdmac: check for non-empty xfers_list before invoking callback Documentation: dmaengine: clean up description of dmatest usage dmaengine: tegra210-adma: remove PM_CLK dependency dmaengine: fsl-edma: add i.mx7ulp edma2 version support dt-bindings: dma: fsl-edma: add new i.mx7ulp-edma dmaengine: fsl-edma-common: version check for v2 instead dmaengine: fsl-edma-common: move dmamux register to another single function dmaengine: fsl-edma: add drvdata for fsl-edma dmaengine: Revert "dmaengine: fsl-edma: support little endian for edma driver" dmaengine: rcar-dmac: Reject zero-length slave DMA requests dmaengine: dw: Enable iDMA 32-bit on Intel Elkhart Lake dmaengine: dw-edma: fix semicolon.cocci warnings dmaengine: sh: usb-dmac: Use [] to denote a flexible array member dmaengine: dmatest: timeout value of -1 should specify infinite wait dmaengine: dw: Distinguish ->remove() between DW and iDMA 32-bit dmaengine: fsl-edma: support little endian for edma driver dmaengine: hsu: Revert "set HSU_CH_MTSR to memory width" dmagengine: pl330: add code to get reset property dt-bindings: pl330: document the optional resets property ...
2019-06-10PCI: Add Synopsys endpoint EDDA Device IDGustavo Pimentel1-1/+1
Create and add Synopsys Endpoint EDDA Device ID to PCI ID list, since this ID is now being use on two different drivers (pci_endpoint_test.ko and dw-edma-pcie.ko). Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Joao Pinto <jpinto@synopsys.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 341Thomas Gleixner1-12/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 of the license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 8 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000437.144869442@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-01misc: pci_endpoint_test: Fix test_reg_bar to be updated in pci_endpoint_testKishon Vijay Abraham I1-0/+1
commit 834b90519925 ("misc: pci_endpoint_test: Add support for PCI_ENDPOINT_TEST regs to be mapped to any BAR") while adding test_reg_bar in order to map PCI_ENDPOINT_TEST regs to be mapped to any BAR failed to update test_reg_bar in pci_endpoint_test, resulting in test_reg_bar having invalid value when used outside probe. Fix it. Fixes: 834b90519925 ("misc: pci_endpoint_test: Add support for PCI_ENDPOINT_TEST regs to be mapped to any BAR") Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2019-05-01misc: pci_endpoint_test: Add support to test PCI EP in AM654xKishon Vijay Abraham I1-0/+17
TI's AM654x PCIe EP has a restriction that BAR_0 is mapped to application registers. "PCIe Inbound Address Translation" section in AM65x Sitara Processors TRM (SPRUID7 – April 2018) describes BAR0 as reserved. Configure pci_endpoint_test to use BAR_2 instead. Also set alignment to 64K since "PCIe Subsystem Address Translation" section in TRM indicates minimum ATU window size is 64K. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2019-02-21misc: pci_endpoint_test: Add the layerscape EP device supportXiaowei Bao1-0/+1
Add the layerscape EP device support in pci_endpoint_test driver. Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Minghuan Lian <minghuan.lian@nxp.com> Reviewed-by: Zhiqiang Hou <zhiqiang.hou@nxp.com> Reviewed-by: Greg KH <gregkh@linuxfoundation.org>
2018-07-19pci_endpoint_test: Add 2 ioctl commandsGustavo Pimentel1-47/+159
Add MSI-X support and update driver documentation accordingly. Add 2 new IOCTL commands: - Allow to reconfigure driver IRQ type in runtime. - Allow to retrieve current driver IRQ type configured. Add IRQ type validation before executing the READ/WRITE/COPY tests. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-07-19pci-epf-test/pci_endpoint_test: Add MSI-X supportGustavo Pimentel1-8/+21
Add MSI-X support and update driver documentation accordingly. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-07-19pci-epf-test/pci_endpoint_test: Use irq_type module parameterGustavo Pimentel1-9/+19
Add new driver parameter to allow interruption type selection. Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-03 10:33:25 +0300