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2020-10-02bus/fsl-mc: Add dprc-reset-container supportBharat Bhushan
DPRC reset is required by VFIO-mc in order to stop a device to further generate DMA transactions. Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com> Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com> Link: https://lore.kernel.org/r/20200929085441.17448-7-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02bus/fsl-mc: Cache the DPRC API versionDiana Craciun
There are already firmware API commands that have multiple versions. For each multiple version command, another command to retrieve the API version is issued. This may introduce an important overhead. The version does not change while the system is running, so the DPRC API version can be safely cached. Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com> Link: https://lore.kernel.org/r/20200929085441.17448-6-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02bus/fsl-mc: Set the QMAN/BMAN region flagsDiana Craciun
The QMAN region is memory mapped, so it should be of type IORESOURCE_MEM. The region flags bits were wrongly used to pass additional information. Use the bus specific bits for this purpose. Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com> Link: https://lore.kernel.org/r/20200929085441.17448-5-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02bus/fsl-mc: add support for 'driver_override' in the mc-busBharat Bhushan
This patch is required for vfio-fsl-mc meta driver to successfully bind layerscape container devices for device passthrough. This patch adds a mechanism to allow a layerscape device to specify a driver rather than a layerscape driver provide a device match. Example to allow a device (dprc.1) to specifically bind with driver (vfio-fsl-mc):- - echo vfio-fsl-mc > /sys/bus/fsl-mc/devices/dprc.1/driver_override - echo dprc.1 > /sys/bus/fsl-mc/drivers/fsl_mc_dprc/unbind - echo dprc.1 > /sys/bus/fsl-mc/drivers/vfio-fsl-mc/bind Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com> Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com> Link: https://lore.kernel.org/r/20200929085441.17448-4-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02bus/fsl-mc: Add a new parameter to dprc_scan_objects functionDiana Craciun
Prepare the dprc_scan_objects function to be used by the VFIO mc driver code. The function is used to scan the mc objects by the bus driver. The same functionality is needed by the VFIO mc driver, but in this case the interrupt configuration is delayed until the userspace configures the interrupts. In order to use the same function in both drivers add a new parameter. Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com> Link: https://lore.kernel.org/r/20200929085441.17448-3-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02bus/fsl-mc: Do no longer export the total number of irqs outside ↵Diana Craciun
dprc_scan_objects The total number of interrupts is only used for some checks outside the dprc_scan_objects function. Furthermore, in some situations the check is made twice. Move the bounds check inside the function for all situations. Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com> Link: https://lore.kernel.org/r/20200929085441.17448-2-diana.craciun@oss.nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02mic: vop: copy data to kernel space then write to io memorySherry Sun
Read and write io memory should address align on ARCH ARM. Change to use memcpy_toio to avoid kernel panic caused by the address un-align issue. Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Link: https://lore.kernel.org/r/20200929091106.24624-5-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02misc: vop: add round_up(x,4) for vring_size to avoid kernel panicSherry Sun
Since struct _mic_vring_info and vring are allocated together and follow vring, if the vring_size() is not four bytes aligned, which will cause the start address of struct _mic_vring_info is not four byte aligned. For example, when vring entries is 128, the vring_size() will be 5126 bytes. The _mic_vring_info struct layout in ddr looks like: 0x90002400: 00000000 00390000 EE010000 0000C0FF Here 0x39 is the avail_idx member, and 0xC0FFEE01 is the magic member. When EP use ioread32(magic) to reads the magic in RC's share memory, it will cause kernel panic on ARM64 platform due to the cross-byte io read. Here read magic in user space use le32toh(vr0->info->magic) will meet the same issue. So add round_up(x,4) for vring_size, then the struct _mic_vring_info will store in this way: 0x90002400: 00000000 00000000 00000039 C0FFEE01 Which will avoid kernel panic when read magic in struct _mic_vring_info. Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Link: https://lore.kernel.org/r/20200929091106.24624-4-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02misc: vop: build VOP based on CONFIG_VOPSherry Sun
Build module or builtin VOP based on CONFIG_VOP macro. Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Link: https://lore.kernel.org/r/20200929091106.24624-3-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02w1: mxc_w1: Fix timeout resolution problem leading to bus errorMartin Fuzzey
On my platform (i.MX53) bus access sometimes fails with w1_search: max_slave_count 64 reached, will continue next search. The reason is the use of jiffies to implement a 200us timeout in mxc_w1_ds2_touch_bit(). On some platforms the jiffies timer resolution is insufficient for this. Fix by replacing jiffies by ktime_get(). For consistency apply the same change to the other use of jiffies in mxc_w1_ds2_reset_bus(). Fixes: f80b2581a706 ("w1: mxc_w1: Optimize mxc_w1_ds2_touch_bit()") Cc: stable <stable@vger.kernel.org> Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group> Link: https://lore.kernel.org/r/1601455030-6607-1-git-send-email-martin.fuzzey@flowbird.group Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02misc: vop: set VIRTIO_F_ACCESS_PLATFORM for vop driverSherry Sun
Set VIRTIO_F_ACCESS_PLATFORM feature for vop driver, as the DMA mapping details shouldn't decide on the virtio implementation, but the host PCIe implementation. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Link: https://lore.kernel.org/r/20200929084944.24146-1-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02fbcon: remove no-op fbcon_set_origin()Tetsuo Handa
We don't need to call vc->vc_sw->con_set_origin() from set_origin() if it is no-op. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Link: https://lore.kernel.org/r/20200915000019.3422-3-penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02regmap: debugfs: use semicolons rather than commas to separate statementsJulia Lawall
Replace commas with semicolons. What is done is essentially described by the following Coccinelle semantic patch (http://coccinelle.lip6.fr/): // <smpl> @@ expression e1,e2; @@ e1 -, +; e2 ... when any // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Link: https://lore.kernel.org/r/1601233948-11629-15-git-send-email-Julia.Lawall@inria.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02platform/x86: intel_pmc_core: do not create a static struct deviceGreg Kroah-Hartman
A struct device is a dynamic structure, with reference counting. "Tricking" the kernel to make a dynamic structure static, by working around the driver core release detection logic, is not nice. Because of this, this code has been used as an example for others on "how to do things", which is just about the worst thing possible to have happen. Fix this all up by making the platform device dynamic and providing a real release function. Fixes: b02f6a2ef0a1 ("platform/x86: intel_pmc_core: Attach using APCI HID "INT33A1"") Cc: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com> Cc: Vishwanath Somayaji <vishwanath.somayaji@intel.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Andy Shevchenko <andy@infradead.org> Reported-by: Maximilian Luz <luzmaximilian@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rajat Jain <rajatja@google.com> Link: https://lore.kernel.org/r/20200923184803.192265-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02USB: core: remove polling for /sys/kernel/debug/usb/devicesSergey Korolev
The latest reference to usbfs_conn_disc_event() removed in commit fb28d58b72aa ("USB: remove CONFIG_USB_DEVICEFS") in 2012 and now a user poll() waits infinitely for content changes. Signed-off-by: Sergey Korolev <s.korolev@ndmsystems.com> Link: https://lore.kernel.org/r/20200809161233.13135-1-s.korolev@ndmsystems.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02usb: typec: add support for STUSB160x Type-C controller familyAmelie Delaunay
STMicroelectronics USB Type-C port controllers use I2C interface to configure, control and read the operation status of the device. All ST USB Type-C port controllers are based on the same I2C register map. That's why this driver can be used with all ST USB Type-C ICs. Some ST USB Type-C port controllers are Dual Role Port (DRP), only Sink or Source, some supports USB Power Delivery. This can be configured through connector device tree bindings. This driver is a basic Type-C port controller driver, with no power delivery support. It allows to configure ST USB Type-C port controller. Interrupt is supported and enables CC connection events, to detect attach and detach and update Type-C subsystem accordingly as well as usb role switch. ST USB Type-C port controller can be supplied in three different ways depending on the target application: - through VDD pin only (so VDD is the main supply) - through VSYS pin only (so VSYS is the main supply) - through VDD and VSYS pins. When both VDD and VSYS power supplies are present, the low power supply VSYS is selected as main supply when VSYS voltage is above 3.1V, else VDD is selected as main supply. In case of Source or Dual port type, if VDD supply is present, it has to be enabled in case of Source power role to provide Vbus. When interrupt support is available, VDD supply is dynamically managed upon attach/detach interrupt. When there is no interrupt support, VDD supply is enabled by default. Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Link: https://lore.kernel.org/r/20200924090049.9041-5-amelie.delaunay@st.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02usb: typec: add typec_find_pwr_opmodeAmelie Delaunay
This patch adds a function that converts power operation mode string into power operation mode value. It is useful to configure power operation mode through device tree property, as power capabilities may be linked to hardware design. Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Link: https://lore.kernel.org/r/20200924090049.9041-3-amelie.delaunay@st.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02ALSA: hda/realtek - Add mute Led support for HP Elitebook 845 G7Qiu Wenbo
After installing archlinux, the mute led and micmute led are not working at all. This patch fix this issue by applying a fixup from similar model. These mute leds are confirmed working on HP Elitebook 845 G7. Signed-off-by: Qiu Wenbo <qiuwenbo@kylinos.com.cn> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20201002124454.7240-1-qiuwenbo@kylinos.com.cn Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-10-02usb: typec: hd3ss3220: Use OF graph API to get the connector fwnodeBiju Das
Some platforms have only super speed data bus connected to this device and high speed data bus directly connected to the SoC. In such platforms modelling connector as a child of this device is making it non compliant with usb connector bindings. By modelling connector node as standalone device node along with this device and the SoC data bus will make it compliant with usb connector bindings. Update the driver to handle this model by using OF graph API to get the connector fwnode and usb role switch class API to get role switch handle. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20200920134905.4370-5-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02dt-bindings: usb: renesas,usb3-peri: Document HS and SS data busBiju Das
Document HS and SS data bus for the "usb-role-switch" enabled case. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200920134905.4370-4-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02dt-bindings: usb: convert ti,hd3ss3220 bindings to json-schemaLad Prabhakar
Convert ti,hd3ss3220.txt to YAML. Updated the binding documentation as graph bindings of this device model Super Speed (SS) data bus to the Super Speed (SS) capable connector. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20200920134905.4370-3-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02tty/sysrq: Extend the sysrq_key_table to cover capital lettersAndrzej Pietrasiewicz
All slots in sysrq_key_table[] are either used, reserved or at least commented with their intended use. This patch adds capital letter versions available, which means adding 26 more entries. For already existing SysRq operations the user presses Alt-SysRq-<key>, and for the newly added ones Alt-Shift-SysRq-<key>. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://lore.kernel.org/r/20200818112825.6445-2-andrzej.p@collabora.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02media: admin-guide: update cardlistsMauro Carvalho Chehab
Update them according with the current support on drivers. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-02media: siano: rename a duplicated card stringMauro Carvalho Chehab
There are two different variants for Hauppauge WinTV MiniCard: [SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD] = { .name = "Hauppauge WinTV MiniCard", .type = SMS_NOVA_B0, .fw[DEVICE_MODE_DVBT_BDA] = SMS_FW_DVBT_HCW_55XXX, .default_mode = DEVICE_MODE_DVBT_BDA, .lna_ctrl = 29, .board_cfg.foreign_lna0_ctrl = 29, .rf_switch = 17, .board_cfg.rf_switch_uhf = 17, }, [SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2] = { .name = "Hauppauge WinTV MiniCard Rev 2", .type = SMS_NOVA_B0, .fw[DEVICE_MODE_DVBT_BDA] = SMS_FW_DVBT_HCW_55XXX, .default_mode = DEVICE_MODE_DVBT_BDA, .lna_ctrl = -1, }, As it can be seen, the RF part of the definitions are different. So, better to use different names in order to distinguish between them. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-02media: zoran: move documentation file to the right placeMauro Carvalho Chehab
The zoran revert patch misplaced the Zoran doc file. Move it to the right place. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-10-02Merge tag 'phy-for-5.10' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into usb-next Vinod writes: phy for 5.9 - Core: - New PHY attribute for max_link_rate - New phy drivers: - Rockchip dphy driver moved from staging - Socionext UniPhier AHCI PHY driver - Intel LGM SoC USB phy - Intel Keem Bay eMMC PHY driver - Updates: - Support for imx8mp usb phy - Support for DP Phy and USB3+DP combo phy in QMP driver - Support for Qualcomm sc7180 DP phy - Support for cadence torrent PCIe and USB single linke and multilink configurations along with USB, SGMII/QSGMII configurations * tag 'phy-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (72 commits) phy: qcom-qmp: initialize the pointer to NULL phy: qcom-qmp: Add support for sc7180 DP phy phy: qcom-qmp: Add support for DP in USB3+DP combo phy phy: qcom-qmp: Use devm_platform_ioremap_resource() to simplify phy: qcom-qmp: Get dp_com I/O resource by index phy: qcom-qmp: Move 'serdes' and 'cfg' into 'struct qcom_phy' phy: qcom-qmp: Remove 'initialized' in favor of 'init_count' phy: qcom-qmp: Move phy mode into struct qmp_phy dt-bindings: phy: qcom,qmp-usb3-dp: Add DP phy information dt-bindings: phy: ti,phy-j721e-wiz: fix bindings for torrent phy dt-bindings: phy: cdns,torrent-phy: add reset-names phy: rockchip-dphy-rx0: Include linux/delay.h phy: fix USB_LGM_PHY warning & build errors phy: cadence-torrent: Add USB + SGMII/QSGMII multilink configuration phy: cadence-torrent: Add PCIe + USB multilink configuration phy: cadence-torrent: Add single link USB register sequences phy: cadence-torrent: Add single link SGMII/QSGMII register sequences phy: cadence-torrent: Configure PHY_PLL_CFG as part of link_cmn_vals phy: cadence-torrent: Add PHY link configuration sequences for single link phy: cadence-torrent: Add clk changes for multilink configuration ...
2020-10-02bus: fsl-mc: MC control registers are not always availableLaurentiu Tudor
As per the device tree binding, in certain scenarios such as virtualization scenarios, the MC control registers are not available so don't error out if they are not present. Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Link: https://lore.kernel.org/r/20200914105459.27448-2-laurentiu.tudor@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02bus: fsl-mc: don't assume an iommu is always presentLaurentiu Tudor
There are certain scenarios where an iommu is not present, e.g. booting in a VM. Let's support these scenarios by dropping the check. Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Link: https://lore.kernel.org/r/20200914105459.27448-1-laurentiu.tudor@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02drivers core: node: Use a more typical macro definition style for ACCESS_ATTRJoe Perches
Remove the trailing semicolon from the macro and add it to its uses. Signed-off-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/faf51a671160cf884efa68fb458d3e8a44b1a7a7.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02drivers core: Use sysfs_emit for shared_cpu_map_show and shared_cpu_list_showJoe Perches
Do not indirect the bitmap printing of these shared_cpu show functions by using cpumap_print_to_pagebuf/bitmap_print_to_pagebuf. Use the more typical style with the vsnprintf %*pb and %*pbl extensions directly so there is no possible mixup about the use of offset_in_page(buf) by bitmap_print_to_pagebuf. Signed-off-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/80457b467ab6cde13a173cfd8a4f49cd8467a7fd.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02mm: and drivers core: Convert hugetlb_report_node_meminfo to sysfs_emitJoe Perches
Convert the unbound sprintf in hugetlb_report_node_meminfo to use sysfs_emit_at so that no possible overrun of a PAGE_SIZE buf can occur. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Mike Kravetz <mike.kravetz@oracle.com> Link: https://lore.kernel.org/r/894b351b82da6013cde7f36ff4b5493cd0ec30d0.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02Merge branch 'for-next/mte' into for-next/coreWill Deacon
Add userspace support for the Memory Tagging Extension introduced by Armv8.5. (Catalin Marinas and others) * for-next/mte: (30 commits) arm64: mte: Fix typo in memory tagging ABI documentation arm64: mte: Add Memory Tagging Extension documentation arm64: mte: Kconfig entry arm64: mte: Save tags when hibernating arm64: mte: Enable swap of tagged pages mm: Add arch hooks for saving/restoring tags fs: Handle intra-page faults in copy_mount_options() arm64: mte: ptrace: Add NT_ARM_TAGGED_ADDR_CTRL regset arm64: mte: ptrace: Add PTRACE_{PEEK,POKE}MTETAGS support arm64: mte: Allow {set,get}_tagged_addr_ctrl() on non-current tasks arm64: mte: Restore the GCR_EL1 register after a suspend arm64: mte: Allow user control of the generated random tags via prctl() arm64: mte: Allow user control of the tag check mode via prctl() mm: Allow arm64 mmap(PROT_MTE) on RAM-based files arm64: mte: Validate the PROT_MTE request via arch_validate_flags() mm: Introduce arch_validate_flags() arm64: mte: Add PROT_MTE support to mmap() and mprotect() mm: Introduce arch_calc_vm_flag_bits() arm64: mte: Tags-aware aware memcmp_pages() implementation arm64: Avoid unnecessary clear_user_page() indirection ...
2020-10-02Merge branch 'for-next/ghostbusters' into for-next/coreWill Deacon
Fix and subsequently rewrite Spectre mitigations, including the addition of support for PR_SPEC_DISABLE_NOEXEC. (Will Deacon and Marc Zyngier) * for-next/ghostbusters: (22 commits) arm64: Add support for PR_SPEC_DISABLE_NOEXEC prctl() option arm64: Pull in task_stack_page() to Spectre-v4 mitigation code KVM: arm64: Allow patching EL2 vectors even with KASLR is not enabled arm64: Get rid of arm64_ssbd_state KVM: arm64: Convert ARCH_WORKAROUND_2 to arm64_get_spectre_v4_state() KVM: arm64: Get rid of kvm_arm_have_ssbd() KVM: arm64: Simplify handling of ARCH_WORKAROUND_2 arm64: Rewrite Spectre-v4 mitigation code arm64: Move SSBD prctl() handler alongside other spectre mitigation code arm64: Rename ARM64_SSBD to ARM64_SPECTRE_V4 arm64: Treat SSBS as a non-strict system feature arm64: Group start_thread() functions together KVM: arm64: Set CSV2 for guests on hardware unaffected by Spectre-v2 arm64: Rewrite Spectre-v2 mitigation code arm64: Introduce separate file for spectre mitigations and reporting arm64: Rename ARM64_HARDEN_BRANCH_PREDICTOR to ARM64_SPECTRE_V2 KVM: arm64: Simplify install_bp_hardening_cb() KVM: arm64: Replace CONFIG_KVM_INDIRECT_VECTORS with CONFIG_RANDOMIZE_BASE arm64: Remove Spectre-related CONFIG_* options arm64: Run ARCH_WORKAROUND_2 enabling code on all CPUs ...
2020-10-02drivers core: Miscellaneous changes for sysfs_emitJoe Perches
Change additional instances that could use sysfs_emit and sysfs_emit_at that the coccinelle script could not convert. o macros creating show functions with ## concatenation o unbound sprintf uses with buf+len for start of output to sysfs_emit_at o returns with ?: tests and sprintf to sysfs_emit o sysfs output with struct class * not struct device * arguments Miscellanea: o remove unnecessary initializations around these changes o consistently use int len for return length of show functions o use octal permissions and not S_<FOO> o rename a few show function names so DEVICE_ATTR_<FOO> can be used o use DEVICE_ATTR_ADMIN_RO where appropriate o consistently use const char *output for strings o checkpatch/style neatening Signed-off-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/8bc24444fe2049a9b2de6127389b57edfdfe324d.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02drivers core: Reindent a couple uses around sysfs_emitJoe Perches
Just a couple of whitespace realignment to open parenthesis for multi-line statements. Signed-off-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/33224191421dbb56015eded428edfddcba997d63.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02drivers core: Remove strcat uses around sysfs_emit and neatenJoe Perches
strcat is no longer necessary for sysfs_emit and sysfs_emit_at uses. Convert the strcat uses to sysfs_emit calls and neaten other block uses of direct returns to use an intermediate const char *. Signed-off-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/5d606519698ce4c8f1203a2b35797d8254c6050a.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02drivers core: Use sysfs_emit and sysfs_emit_at for show(device *...) functionsJoe Perches
Convert the various sprintf fmaily calls in sysfs device show functions to sysfs_emit and sysfs_emit_at for PAGE_SIZE buffer safety. Done with: $ spatch -sp-file sysfs_emit_dev.cocci --in-place --max-width=80 . And cocci script: $ cat sysfs_emit_dev.cocci @@ identifier d_show; identifier dev, attr, buf; @@ ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf) { <... return - sprintf(buf, + sysfs_emit(buf, ...); ...> } @@ identifier d_show; identifier dev, attr, buf; @@ ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf) { <... return - snprintf(buf, PAGE_SIZE, + sysfs_emit(buf, ...); ...> } @@ identifier d_show; identifier dev, attr, buf; @@ ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf) { <... return - scnprintf(buf, PAGE_SIZE, + sysfs_emit(buf, ...); ...> } @@ identifier d_show; identifier dev, attr, buf; expression chr; @@ ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf) { <... return - strcpy(buf, chr); + sysfs_emit(buf, chr); ...> } @@ identifier d_show; identifier dev, attr, buf; identifier len; @@ ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf) { <... len = - sprintf(buf, + sysfs_emit(buf, ...); ...> return len; } @@ identifier d_show; identifier dev, attr, buf; identifier len; @@ ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf) { <... len = - snprintf(buf, PAGE_SIZE, + sysfs_emit(buf, ...); ...> return len; } @@ identifier d_show; identifier dev, attr, buf; identifier len; @@ ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf) { <... len = - scnprintf(buf, PAGE_SIZE, + sysfs_emit(buf, ...); ...> return len; } @@ identifier d_show; identifier dev, attr, buf; identifier len; @@ ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf) { <... - len += scnprintf(buf + len, PAGE_SIZE - len, + len += sysfs_emit_at(buf, len, ...); ...> return len; } @@ identifier d_show; identifier dev, attr, buf; expression chr; @@ ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf) { ... - strcpy(buf, chr); - return strlen(buf); + return sysfs_emit(buf, chr); } Signed-off-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/3d033c33056d88bbe34d4ddb62afd05ee166ab9a.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02Merge branches 'for-next/acpi', 'for-next/boot', 'for-next/bpf', ↵Will Deacon
'for-next/cpuinfo', 'for-next/fpsimd', 'for-next/misc', 'for-next/mm', 'for-next/pci', 'for-next/perf', 'for-next/ptrauth', 'for-next/sdei', 'for-next/selftests', 'for-next/stacktrace', 'for-next/svm', 'for-next/topology', 'for-next/tpyos' and 'for-next/vdso' into for-next/core Remove unused functions and parameters from ACPI IORT code. (Zenghui Yu via Lorenzo Pieralisi) * for-next/acpi: ACPI/IORT: Remove the unused inline functions ACPI/IORT: Drop the unused @ops of iort_add_device_replay() Remove redundant code and fix documentation of caching behaviour for the HVC_SOFT_RESTART hypercall. (Pingfan Liu) * for-next/boot: Documentation/kvm/arm: improve description of HVC_SOFT_RESTART arm64/relocate_kernel: remove redundant code Improve reporting of unexpected kernel traps due to BPF JIT failure. (Will Deacon) * for-next/bpf: arm64: Improve diagnostics when trapping BRK with FAULT_BRK_IMM Improve robustness of user-visible HWCAP strings and their corresponding numerical constants. (Anshuman Khandual) * for-next/cpuinfo: arm64/cpuinfo: Define HWCAP name arrays per their actual bit definitions Cleanups to handling of SVE and FPSIMD register state in preparation for potential future optimisation of handling across syscalls. (Julien Grall) * for-next/fpsimd: arm64/sve: Implement a helper to load SVE registers from FPSIMD state arm64/sve: Implement a helper to flush SVE registers arm64/fpsimdmacros: Allow the macro "for" to be used in more cases arm64/fpsimdmacros: Introduce a macro to update ZCR_EL1.LEN arm64/signal: Update the comment in preserve_sve_context arm64/fpsimd: Update documentation of do_sve_acc Miscellaneous changes. (Tian Tao and others) * for-next/misc: arm64/mm: return cpu_all_mask when node is NUMA_NO_NODE arm64: mm: Fix missing-prototypes in pageattr.c arm64/fpsimd: Fix missing-prototypes in fpsimd.c arm64: hibernate: Remove unused including <linux/version.h> arm64/mm: Refactor {pgd, pud, pmd, pte}_ERROR() arm64: Remove the unused include statements arm64: get rid of TEXT_OFFSET arm64: traps: Add str of description to panic() in die() Memory management updates and cleanups. (Anshuman Khandual and others) * for-next/mm: arm64: dbm: Invalidate local TLB when setting TCR_EL1.HD arm64: mm: Make flush_tlb_fix_spurious_fault() a no-op arm64/mm: Unify CONT_PMD_SHIFT arm64/mm: Unify CONT_PTE_SHIFT arm64/mm: Remove CONT_RANGE_OFFSET arm64/mm: Enable THP migration arm64/mm: Change THP helpers to comply with generic MM semantics arm64/mm/ptdump: Add address markers for BPF regions Allow prefetchable PCI BARs to be exposed to userspace using normal non-cacheable mappings. (Clint Sbisa) * for-next/pci: arm64: Enable PCI write-combine resources under sysfs Perf/PMU driver updates. (Julien Thierry and others) * for-next/perf: perf: arm-cmn: Fix conversion specifiers for node type perf: arm-cmn: Fix unsigned comparison to less than zero arm_pmu: arm64: Use NMIs for PMU arm_pmu: Introduce pmu_irq_ops KVM: arm64: pmu: Make overflow handler NMI safe arm64: perf: Defer irq_work to IPI_IRQ_WORK arm64: perf: Remove PMU locking arm64: perf: Avoid PMXEV* indirection arm64: perf: Add missing ISB in armv8pmu_enable_counter() perf: Add Arm CMN-600 PMU driver perf: Add Arm CMN-600 DT binding arm64: perf: Add support caps under sysfs drivers/perf: thunderx2_pmu: Fix memory resource error handling drivers/perf: xgene_pmu: Fix uninitialized resource struct perf: arm_dsu: Support DSU ACPI devices arm64: perf: Remove unnecessary event_idx check drivers/perf: hisi: Add missing include of linux/module.h arm64: perf: Add general hardware LLC events for PMUv3 Support for the Armv8.3 Pointer Authentication enhancements. (By Amit Daniel Kachhap) * for-next/ptrauth: arm64: kprobe: clarify the comment of steppable hint instructions arm64: kprobe: disable probe of fault prone ptrauth instruction arm64: cpufeature: Modify address authentication cpufeature to exact arm64: ptrauth: Introduce Armv8.3 pointer authentication enhancements arm64: traps: Allow force_signal_inject to pass esr error code arm64: kprobe: add checks for ARMv8.3-PAuth combined instructions Tonnes of cleanup to the SDEI driver. (Gavin Shan) * for-next/sdei: firmware: arm_sdei: Remove _sdei_event_unregister() firmware: arm_sdei: Remove _sdei_event_register() firmware: arm_sdei: Introduce sdei_do_local_call() firmware: arm_sdei: Cleanup on cross call function firmware: arm_sdei: Remove while loop in sdei_event_unregister() firmware: arm_sdei: Remove while loop in sdei_event_register() firmware: arm_sdei: Remove redundant error message in sdei_probe() firmware: arm_sdei: Remove duplicate check in sdei_get_conduit() firmware: arm_sdei: Unregister driver on error in sdei_init() firmware: arm_sdei: Avoid nested statements in sdei_init() firmware: arm_sdei: Retrieve event number from event instance firmware: arm_sdei: Common block for failing path in sdei_event_create() firmware: arm_sdei: Remove sdei_is_err() Selftests for Pointer Authentication and FPSIMD/SVE context-switching. (Mark Brown and Boyan Karatotev) * for-next/selftests: selftests: arm64: Add build and documentation for FP tests selftests: arm64: Add wrapper scripts for stress tests selftests: arm64: Add utility to set SVE vector lengths selftests: arm64: Add stress tests for FPSMID and SVE context switching selftests: arm64: Add test for the SVE ptrace interface selftests: arm64: Test case for enumeration of SVE vector lengths kselftests/arm64: add PAuth tests for single threaded consistency and differently initialized keys kselftests/arm64: add PAuth test for whether exec() changes keys kselftests/arm64: add nop checks for PAuth tests kselftests/arm64: add a basic Pointer Authentication test Implementation of ARCH_STACKWALK for unwinding. (Mark Brown) * for-next/stacktrace: arm64: Move console stack display code to stacktrace.c arm64: stacktrace: Convert to ARCH_STACKWALK arm64: stacktrace: Make stack walk callback consistent with generic code stacktrace: Remove reliable argument from arch_stack_walk() callback Support for ASID pinning, which is required when sharing page-tables with the SMMU. (Jean-Philippe Brucker) * for-next/svm: arm64: cpufeature: Export symbol read_sanitised_ftr_reg() arm64: mm: Pin down ASIDs for sharing mm with devices Rely on firmware tables for establishing CPU topology. (Valentin Schneider) * for-next/topology: arm64: topology: Stop using MPIDR for topology information Spelling fixes. (Xiaoming Ni and Yanfei Xu) * for-next/tpyos: arm64/numa: Fix a typo in comment of arm64_numa_init arm64: fix some spelling mistakes in the comments by codespell vDSO cleanups. (Will Deacon) * for-next/vdso: arm64: vdso: Fix unusual formatting in *setup_additional_pages() arm64: vdso32: Remove a bunch of #ifdef CONFIG_COMPAT_VDSO guards
2020-10-02usb: dwc2: Fix INTR OUT transfers in DDMA mode.Minas Harutyunyan
In DDMA mode if INTR OUT transfers mps not multiple of 4 then single packet corresponds to single descriptor. Descriptor limit set to mps and desc chain limit set to mps * MAX_DMA_DESC_NUM_GENERIC. On that descriptors complete, to calculate transfer size should be considered correction value for each descriptor. In start request function, if "continue" is true then dma buffer address should be incremmented by offset for all type of transfers, not only for Control DATA_OUT transfers. Fixes: cf77b5fb9b394 ("usb: dwc2: gadget: Transfer length limit checking for DDMA") Fixes: e02f9aa6119e0 ("usb: dwc2: gadget: EP 0 specific DDMA programming") Fixes: aa3e8bc81311e ("usb: dwc2: gadget: DDMA transfer start and complete") Signed-off-by: Minas Harutyunyan <hminas@synopsys.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCsAmelie Delaunay
If usb-role-switch is present in the device tree, it means that ID and Vbus signals are not connected to the OTG controller but to an external component (GPIOs, Type-C controller). In this configuration, usb role switch is used to force valid sessions on STM32MP15 SoCs. Acked-by: Minas Harutyunyan <hminas@synopsys.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02usb: dwc2: override PHY input signals with usb role switch supportAmelie Delaunay
This patch adds support for usb role switch to dwc2, by using overriding control of the PHY voltage valid and ID input signals. iddig signal (ID) can be overridden: - when setting GUSBCFG_FORCEHOSTMODE, iddig input pin is overridden with 1; - when setting GUSBCFG_FORCEDEVMODE, iddig input pin is overridden with 0. avalid/bvalid/vbusvalid signals can be overridden respectively with: - GOTGCTL_AVALOEN + GOTGCTL_AVALOVAL - GOTGCTL_BVALOEN + GOTGCTL_BVALOVAL - GOTGCTL_VBVALEN + GOTGCTL_VBVALOVAL It is possible to determine valid sessions thanks to usb role switch: - if USB_ROLE_NONE then !avalid && !bvalid && !vbusvalid - if USB_ROLE_DEVICE then !avalid && bvalid && vbusvalid - if USB_ROLE_HOST then avalid && !bvalid && vbusvalid Acked-by: Minas Harutyunyan <hminas@synopsys.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02dt-bindings: usb: dwc2: add optional usb-role-switch propertyAmelie Delaunay
This patch documents the usb-role-switch property in dwc2 bindings, now that usb-role-switch support is available in dwc2 driver. Acked-by: Minas Harutyunyan <hminas@synopsys.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02usb: dwc3: of-simple: Add compatible string for Intel Keem Bay platformWan Ahmad Zainie
Add compatible string to use this generic glue layer to support Intel Keem Bay platform's dwc3 controller. Signed-off-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02dt-bindings: usb: Add Intel Keem Bay USB controller bindingsWan Ahmad Zainie
Binding description for Intel Keem Bay USB controller. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02usb: dwc3: gadget: Support up to max stream idThinh Nguyen
DWC3 IPs can use the maximum stream id (up to 2^16) specified by the USB 3.x specs. Don't limit to stream id 2^15 only. Note that this does not reflect the number of concurrent streams the controller handles internally. Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs outputJoe Perches
Output defects can exist in sysfs content using sprintf and snprintf. sprintf does not know the PAGE_SIZE maximum of the temporary buffer used for outputting sysfs content and it's possible to overrun the PAGE_SIZE buffer length. Add a generic sysfs_emit function that knows that the size of the temporary buffer and ensures that no overrun is done. Add a generic sysfs_emit_at function that can be used in multiple call situations that also ensures that no overrun is done. Validate the output buffer argument to be page aligned. Validate the offset len argument to be within the PAGE_SIZE buf. Signed-off-by: Joe Perches <joe@perches.com> Link: https://lore.kernel.org/r/884235202216d464d61ee975f7465332c86f76b2.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02w1: w1_therm: Add support for GXCAS GX20MH01 device.Ivan Zaentsev
GX20MH01 device shares family number 0x28 with DS18B20. The device is generally compatible with DS18B20. Added are the lowest 2^-5, 2^-6 temperature bits in Config register; R2 bit in Config register enabling 13 and 14 bit resolutions. It is powered up in 14 bit mode. Signed-off-by: Ivan Zaentsev <ivan.zaentsev@wirenboard.ru> Link: https://lore.kernel.org/r/20200904160004.87710-2-ivan.zaentsev@wirenboard.ru Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02w1: w1_therm: Add sysfs entries to control conversion time and driver featuresIvan Zaentsev
The conversion time of common DS18B20 clones deviates from datasheet specs. Allow adjustment and automatic measure of the conversion time. Add 'conv_time' sysfs attribute: *read*: Current conversion time in milliseconds. *write*: '0': Set default conversion time. '1': Measure and set the conversion time. Make a single temperature conversion, poll and measure an actual value. Measured value is increased by 20% for temperature drift. A new conversion time is returned by reading the same attribute. other positive value: Set the conversion time in milliseconds. The setting is active until a resolution change. Then it is reset to default conversion time for a new resolution. Add 'features' sysfs attribute to control optional driver settings per device. Bit masks to read/write (logical OR): 1: Enable check for conversion success. If byte 6 of scratchpad memory is 0xC after conversion, and temperature reads 85.00 (powerup value) or 127.94 (insufficient power) - return a conversion error. 2: Enable poll for conversion completion. Generate read cycles after the conversion start and wait for 1's. In parasite power mode this feature is not available. There are some clones of DS18B20 with fixed 12 bit resolution. Make the driver verify the resolution by reading back the device after resolution change. Signed-off-by: Ivan Zaentsev <ivan.zaentsev@wirenboard.ru> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Link: https://lore.kernel.org/r/20200904160004.87710-1-ivan.zaentsev@wirenboard.ru Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02samples: mpssd: fix the build errors when enable DEBUG in mpssd.cSherry Sun
If enable DEBUG, will meet the following errors when build mpssd, so fix them here. Only one error is listed here, other errors are similar. mpssd.c: In function ‘virtio_net’: mpssd.c:615:21: error: incompatible type for argument 2 of ‘disp_iovec’ disp_iovec(mic, copy, __func__, __LINE__); ^~~~ mpssd.c:361:1: note: expected ‘struct mic_copy_desc *’ but argument is of type ‘struct mic_copy_desc’ disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy, ^~~~~~~~~~ Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Link: https://lore.kernel.org/r/20200925071831.8025-2-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02eeprom: ee1004: use module_i2c_driver to simplify the codeLiu Shixin
Use the module_i2c_driver() macro to make the code smaller and a bit simpler. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Link: https://lore.kernel.org/r/20200918030225.3902750-1-liushixin2@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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