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2020-12-14ARM: dts: lpc32xx: Remove unused and undocumented 'pnx,timeout'Rob Herring
'pnx,timeout' is unused, undocumented and 'pnx' is not a vendor prefix, so let's remove it. Acked-by: Vladimir Zapolskiy <vz@mleia.com> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Link: https://lore.kernel.org/r/20201210175238.2721550-1-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
2020-12-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
xdp_return_frame_bulk() needs to pass a xdp_buff to __xdp_return(). strlcpy got converted to strscpy but here it makes no functional difference, so just keep the right code. Conflicts: net/netfilter/nf_tables_api.c Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-11Add and use a generic version of devmem_is_allowed()Palmer Dabbelt
As part of adding STRICT_DEVMEM support to the RISC-V port, Zong provided an implementation of devmem_is_allowed() that's exactly the same as the version in a handful of other ports. Rather than duplicate code, I've put a generic version of this in lib/ and used it for the RISC-V port. * palmer/generic-devmem: arm64: Use the generic devmem_is_allowed() arm: Use the generic devmem_is_allowed() RISC-V: Use the new generic devmem_is_allowed() lib: Add a generic version of devmem_is_allowed()
2020-12-11arm: Use the generic devmem_is_allowed()Palmer Dabbelt
This is exactly the same as the arm64 version, which I recently copied into lib/ for use by the RISC-V port. Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-12-11Merge tag 'usb-serial-5.11-rc1' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for 5.11-rc1 Here are the USB-serial updates for 5.11-rc1, including: - keyspan_pda write-implementation fixes - digi_acceleport write-wakeup fix - mos7720 parport-restore fix - mos7720 parport-tasklet removal - cp210x termios-handling cleanups - option device-flag fix - ftdi_sio GPIO CBUS-configuration improvements - removal of in_interrupt() uses Included are also various clean ups. All have been in linux-next with no reported issues. * tag 'usb-serial-5.11-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: (30 commits) USB: serial: ftdi_sio: log the CBUS GPIO validity USB: serial: ftdi_sio: drop GPIO line checking dead code USB: serial: ftdi_sio: report the valid GPIO lines to gpiolib USB: serial: option: add interface-number sanity check to flag handling USB: serial: cp210x: clean up dtr_rts() USB: serial: cp210x: refactor flow-control handling USB: serial: cp210x: drop flow-control debugging USB: serial: cp210x: set terminal settings on open USB: serial: cp210x: clean up line-control handling USB: serial: cp210x: return early on unchanged termios USB: serial: mos7720: defer state restore to a workqueue USB: serial: mos7720: fix parallel-port state restore USB: serial: remove write wait queue USB: serial: digi_acceleport: fix write-wakeup deadlocks USB: serial: keyspan_pda: drop redundant usb-serial pointer USB: serial: keyspan_pda: use BIT() macro USB: serial: keyspan_pda: clean up comments and whitespace USB: serial: keyspan_pda: clean up xircom/entrega support USB: serial: keyspan_pda: add write-fifo support USB: serial: keyspan_pda: increase transmitter threshold ...
2020-12-10mtd: nand: ecc-hamming: Move Hamming code to the generic NAND layerMiquel Raynal
Hamming ECC code might be later re-used by the SPI NAND layer. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20200929230124.31491-12-miquel.raynal@bootlin.com
2020-12-09ARM: dts: mmp2-olpc-xo-1-75: clear the warnings when make dtbsZhen Lei
The check_spi_bus_bridge() in scripts/dtc/checks.c requires that the node have "spi-slave" property must with "#address-cells = <0>" and "#size-cells = <0>". But currently both "#address-cells" and "#size-cells" properties are deleted, the corresponding default values are 2 and 1. As a result, the check fails and below warnings is displayed. arch/arm/boot/dts/mmp2.dtsi:472.23-480.6: Warning (spi_bus_bridge): \ /soc/apb@d4000000/spi@d4037000: incorrect #address-cells for SPI bus also defined at arch/arm/boot/dts/mmp2-olpc-xo-1-75.dts:225.7-237.3 arch/arm/boot/dts/mmp2.dtsi:472.23-480.6: Warning (spi_bus_bridge): \ /soc/apb@d4000000/spi@d4037000: incorrect #size-cells for SPI bus also defined at arch/arm/boot/dts/mmp2-olpc-xo-1-75.dts:225.7-237.3 arch/arm/boot/dts/mmp2-olpc-xo-1-75.dtb: Warning (spi_bus_reg): \ Failed prerequisite 'spi_bus_bridge' Because the value of "#size-cells" is already defined as zero in the node "ssp3: spi@d4037000" in arch/arm/boot/dts/mmp2.dtsi. So we only need to explicitly add "#address-cells = <0>" and keep "#size-cells" no change. Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Link: https://lore.kernel.org/r/20201207084752.1665-2-thunder.leizhen@huawei.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09Merge tag 'zynq-dt-for-v5.10' of https://github.com/Xilinx/linux-xlnx into ↵Arnd Bergmann
arm/dt ARM: dts: zynq: DT changes for v5.11 - Adding support for Zturn-v5 - Small DT changes to clean errors from dt_binding_check * tag 'zynq-dt-for-v5.10' of https://github.com/Xilinx/linux-xlnx: ARM: zynq: Fix incorrect reference to XM013 instead of XM011 ARM: zynq: Convert at25 binding to new description on zc770-xm013 ARM: zynq: Fix OCM mapping to be aligned with binding on zc702 ARM: zynq: Fix leds subnode name for zc702/zybo-z7 ARM: zynq: Rename bus to be align with simple-bus yaml ARM: zynq: Fix compatible string for adi,adxl345 chip ARM: zynq: Add Z-turn board V5
2020-12-09Merge tag 'aspeed-5.11-devicetree' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed into arm/dt ASPEED device tree updates for 5.11 - New machines * Bytedance G220A, an AST2500 BMC for an x86 server * Facebook Galaxy100, an AST2400 BMC for a network switch * IBM Rainier 4U, an AST2600 BMC for a PowerPC server - Reworking of Facebook device trees to use common dtsi - A 64MB flash layout used by the G220A - Misc updates to tiogapass, ethanolx, s2600wf, tacoma and rainier * tag 'aspeed-5.11-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed: (25 commits) ARM: dts: aspeed: ast2600evb: Add MAC0 ARM: dts: aspeed: rainier: Don't shout addresses ARM: dts: aspeed: rainier: Mark FSI SPI controllers as restricted ARM: dts: tacoma: Add reserved memory for ramoops ARM: dts: rainier: Add reserved memory for ramoops ARM: dts: tacoma: Fix node vs reg mismatch for flash memory ARM: dts: aspeed: rainier: Add 4U device-tree arm: dts: aspeed: tiogapass: Enable second MAC ARM: dts: aspeed: minipack: Fixup I2C tree ARM: dts: aspeed: wedge400: Fix FMC flash0 layout ARM: dts: aspeed: Add Facebook Galaxy100 (AST2400) BMC ARM: dts: aspeed: wedge100: Use common dtsi ARM: dts: aspeed: wedge40: Use common dtsi ARM: dts: aspeed: Common dtsi for Facebook AST2400 Network BMCs ARM: dts: aspeed: amd-ethanolx: Add GPIO line names ARM: dts: aspeed: amd-ethanolx: Enable devices for the iKVM functionality ARM: dts: aspeed: amd-ethanolx: Enable KCS channel 3 ARM: dts: aspeed: tiogapass: Remove vuart ARM: dts: Fix label address for 64MiB OpenBMC flash layout ARM: dts: aspeed: g220a: Add some gpios ... Link: https://lore.kernel.org/r/CACPK8Xfd7AmuEaUdFfYLu4ktcrpTnYUgwQSxUbC-McB02hvo_g@mail.gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: mstar: SMP supportDaniel Palmer
This patch adds SMP support for MStar/Sigmastar chips that have a second core like those in the infinity2m family. So far only single and dual core chips have been found so this does the bare minimum to boot the second core. From what I can tell not having the "holding pen" code to handle multiple cores is fine if there is only one core the will get booted. This might need to be reconsidered if chips with more cores turn up. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Link: https://lore.kernel.org/r/20201201134330.3037007-11-daniel@0x0f.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: mstar: Wire up smpctrl for SSD201/SSD202DDaniel Palmer
Add the specific compat string for the smpctrl registers to the SSD201/SSD202D common dtsi. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Link: https://lore.kernel.org/r/20201201134330.3037007-10-daniel@0x0f.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: mstar: Add smp ctrl registers to infinity2m dtsiDaniel Palmer
Add the smpctrl registers to the infinity2m dtsi so that the second CPU can be enabled on chips in this family. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Link: https://lore.kernel.org/r/20201201134330.3037007-9-daniel@0x0f.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: mstar: Add dts for Honestar ssd201htv2Daniel Palmer
Add a dts for the Honestar ssd201htv2 devkit. This is for the board populated with a SSD202D. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Link: https://lore.kernel.org/r/20201201134330.3037007-8-daniel@0x0f.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: mstar: Add chip level dtsi for SSD202DDaniel Palmer
Add a chip level dtsi for the SigmaStar SSD202D Signed-off-by: Daniel Palmer <daniel@0x0f.com> Link: https://lore.kernel.org/r/20201201134330.3037007-7-daniel@0x0f.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: mstar: Add common dtsi for SSD201/SSD202DDaniel Palmer
The SSD201 and SSD202D are basically the same chip with a different DDR die packaged (64MB DDR2 or 128MB DDR3). This patch adds a shared dtsi for the common parts of these chips like gpio, pinctrl etc. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Link: https://lore.kernel.org/r/20201201134330.3037007-6-daniel@0x0f.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: mstar: Add infinity2m supportDaniel Palmer
The infinity2m series of chips are like the other Mstar/Sigmastar chips in that they have a Cortex A7 system with DDR memory integrated in a single package. The infinity2m chips are intended for recording the incoming streams from IP cameras. So instead of video encoders they have video decoders, instead of a camera interface they have display hardware and so on. Aside from the above points the big difference about these chips is that they include a second Cortex A7 core. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Link: https://lore.kernel.org/r/20201201134330.3037007-5-daniel@0x0f.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: mstar: Fill in GPIO controller properties for infinityDaniel Palmer
Fill in the properties needed to use the GPIO controller in the infinity and infinity3 chips. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20201129110803.2461700-6-daniel@0x0f.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: mstar: Add gpio controller to MStar base dtsiDaniel Palmer
The GPIO controller is at the same address in all of the currently known chips so create a node for it in the base dtsi. Some extra properties are needed to actually use it so disable it by default. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20201129110803.2461700-5-daniel@0x0f.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09Merge tag 'imx-soc-5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/soc i.MX SoC update for 5.11: - Add revision detection support for i.MX7ULP revision 2.2. - Add a little document for i.MX7ULP B2 silicon version. - Add serial number support for i.MX23, i.MX28 SoCs through soc_device. - Improve the identifying of i.MX6QP SoCs. * tag 'imx-soc-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: mxs: Add serial number support for i.MX23, i.MX28 SoCs ARM: imx: mach-imx6q: correctly identify i.MX6QP SoCs ARM: imx: imx7ulp: Add a comment explaining the B2 silicon version ARM: imx: Add revision support for i.MX7ULP revision 2.2 Link: https://lore.kernel.org/r/20201202142717.9262-2-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09Merge tag 'samsung-soc-5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc Samsung mach/soc changes for v5.11 1. Do not use of_machine_is_compatible() in early CPU hotplug core. Full device tree walk causes "suspicious RCU usage" warnings. 2. Clear prefetch bits in default l2c_aux_val of L310 L2C - they are not needed. 3. Extend cpuidle support to P4 Note boards (Exynos4412). * tag 'samsung-soc-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: exynos: extend cpuidle support to P4 Note boards ARM: exynos: clear prefetch bits in default l2c_aux_val ARM: exynos: Simplify code in Exynos3250 CPU core restart path Link: https://lore.kernel.org/r/20201201204404.22675-4-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09ARM: zynq: Fix incorrect reference to XM013 instead of XM011Michal Simek
Fix comment about targeted extension card. It was likely just c&p error. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/39e16e667aa8f132496092d4fa554935ddd5a55f.1606399500.git.michal.simek@xilinx.com
2020-12-09ARM: zynq: Convert at25 binding to new description on zc770-xm013Michal Simek
The commit f8f79fa6bb25 ("dt-bindings: at25: convert the binding document to yaml") converted binding to yaml and 3 deprecated properties pop up. The patch is fixing these warnings: .../zynq-zc770-xm013.dt.yaml: eeprom@2: 'pagesize' is a required property .../zynq-zc770-xm013.dt.yaml: eeprom@2: 'size' is a required property .../zynq-zc770-xm013.dt.yaml: eeprom@2: 'address-width' is a required property >From schema: .../Documentation/devicetree/bindings/eeprom/at25.yaml by converting them to new binding. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/be2c1125d98386033e182012eb08986924707a76.1606397101.git.michal.simek@xilinx.com
2020-12-09ARM: zynq: Fix OCM mapping to be aligned with binding on zc702Michal Simek
The commit f69629919942 ("dt-bindings: sram: Convert SRAM bindings to json-schema") converted binding to yaml and some missing required properties started to be reported. Align binding based on it. The patch is fixing these warnings: .../zynq-zc702.dt.yaml: sram@fffc0000: '#address-cells' is a required property .../zynq-zc702.dt.yaml: sram@fffc0000: '#size-cells' is a required property .../zynq-zc702.dt.yaml: sram@fffc0000: 'ranges' is a required property >From schema: .../Documentation/devicetree/bindings/sram/sram.yaml Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/87c02786ccd8d7827827a9d95a8737bb300caeb0.1606397101.git.michal.simek@xilinx.com
2020-12-09ARM: zynq: Fix leds subnode name for zc702/zybo-z7Michal Simek
Fix the leds subnode names to match (^led-[0-9a-f]$|led). Similar change has been also done by commit 9a19a39ee48b ("arm64: dts: zynqmp: Fix leds subnode name for zcu100/ultra96 v1"). The patch is fixing these warnings: .../zynq-zc702.dt.yaml: leds: 'ds23' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+' >From schema: .../Documentation/devicetree/bindings/leds/leds-gpio.yaml .../zynq-zybo-z7.dt.yaml: gpio-leds: 'ld4' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+' >From schema: .../Documentation/devicetree/bindings/leds/leds-gpio.yaml Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/607a66783b129294364abf09a6fc8abd241ff4ee.1606397101.git.michal.simek@xilinx.com
2020-12-09ARM: zynq: Rename bus to be align with simple-bus yamlMichal Simek
Rename amba to AXI. Based on Xilinx Zynq TRM (Chapter 5) chip is "AXI point-to-point channels for communicating addresses, data, and response transactions between master and slave clients. This ARM AMBA 3.0..." Issues are reported as: .. amba: $nodename:0: 'amba' does not match '^([a-z][a-z0-9\\-]+-bus|bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$' >From schema: ../github.com/devicetree-org/dt-schema/dtschema/schemas/simple-bus.yaml Similar change has been done for Xilinx ZynqMP SoC. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/8a4bc80debfbb79c296e76fc1e4c173e62657286.1606397101.git.michal.simek@xilinx.com
2020-12-09ARM: zynq: Fix compatible string for adi,adxl345 chipMichal Simek
The commit e359a29225dd ("dt-bindings: iio: accel: adxl345: switch to YAML bindings") switched binding to yaml and the following error pop up: ../zynq-zturn-v5.dt.yaml: accelerometer@53: compatible: 'oneOf' conditional failed, one must be fixed: ['adi,adxl345', 'adxl345', 'adi,adxl34x', 'adxl34x'] is too long Additional items are not allowed ('adi,adxl34x', 'adxl34x' were unexpected) Additional items are not allowed ('adxl345', 'adi,adxl34x', 'adxl34x' were unexpected) 'adi,adxl346' was expected 'adi,adxl345' was expected Use only one compatible string to be aligned with the binding. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/a9075ab54df13461380e46d3002302d3672325b5.1606397101.git.michal.simek@xilinx.com
2020-12-09efi: stub: get rid of efi_get_max_fdt_addr()Ard Biesheuvel
Now that ARM started following the example of arm64 and RISC-V, and no longer imposes any restrictions on the placement of the FDT in memory at boot, we no longer need per-arch implementations of efi_get_max_fdt_addr() to factor out the differences. So get rid of it. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Atish Patra <atish.patra@wdc.com> Link: https://lore.kernel.org/r/20201029134901.9773-1-ardb@kernel.org
2020-12-09efi: arm: reduce minimum alignment of uncompressed kernelArd Biesheuvel
Now that we reduced the minimum relative alignment between PHYS_OFFSET and PAGE_OFFSET to 2 MiB, we can take this into account when allocating memory for the decompressed kernel when booting via EFI. This minimizes the amount of unusable memory we may end up with due to the base of DRAM being occupied by firmware. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2020-12-09efi: capsule: clean scatter-gather entries from the D-cacheArd Biesheuvel
Scatter-gather lists passed to UpdateCapsule() should be cleaned from the D-cache to ensure that they are visible to the CPU after a warm reboot before the MMU is enabled. On ARM and arm64 systems, this implies a D-cache clean by virtual address to the point of coherency. However, due to the fact that the firmware itself is not able to map physical addresses back to virtual addresses when running under the OS, this must be done by the caller. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2020-12-09Merge tag 'omap-for-v5.11/genpd-drivers-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/drivers Driver changes for omaps for genpd for v5.11 merge window This series of changes allows booting am335x with genpd and device tree data without the legacy platform data. Also at least am437x can be booted with gendp with power domain and dts data. The SoC specific dts changes will be a separate pull request. We need the following driver changes merged before the dts changes can be done: - platform code needs a few improvments to probe l4_wkup first for clocks, and to bail out when there is no platform data - ti-sysc driver needs a non-urgent fix for asserting rstctrl reset only after disabling the clocks, to probe modules with no known control registers, and added quirk handling for gpmc devices - omap-prm driver needs a non-urgent fix for reset status bit, support added for pm_clk, and then we add the rest of am335x power domain data - clock driver for am335x needs to keep l3_main clock enabled with genpd for suspend and resume to work - wkup_m3 remoteproc driver needs support added for reset control if available instead of the legacy pdata callbacks - pm33xx driver needs PM runtime support added for genpd The am335x specific driver changes for the clock, wkup_m3, pm33xx and remoteproc drivers are quite trivial and have not caused merge conflicts in Linux next. I did not get acks for these changes except from Santosh but had already pushed out the branch already at that point. So I've added the related driver maintainers to Cc. * tag 'omap-for-v5.11/genpd-drivers-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: remoteproc/wkup_m3: Use reset control driver if available soc: ti: pm33xx: Enable basic PM runtime support for genpd soc: ti: omap-prm: am3: add genpd support for remaining PRM instances soc: ti: omap-prm: Add pm_clk for genpd clk: ti: am33xx: Keep am3 l3 main clock always on for genpd bus: ti-sysc: Implement GPMC debug quirk to drop platform data bus: ti-sysc: Support modules without control registers ARM: OMAP2+: Probe PRCM first to probe l4_wkup with simple-pm-bus ARM: OMAP2+: Check for inited flag bus: ti-sysc: Assert reset only after disabling clocks soc: ti: omap-prm: Do not check rstst bit on deassert if already deasserted bus: ti-sysc: Fix bogus resetdone warning on enable for cpsw bus: ti-sysc: Fix reset status check for modules with quirks ARM: OMAP2+: Fix missing select PM_GENERIC_DOMAINS_OF ARM: OMAP2+: Fix location for select PM_GENERIC_DOMAINS Link: https://lore.kernel.org/r/pull-1606806458-694517@atomide.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09Merge tag 'amlogic-dt64-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/dt arm64: dts: amlogic updates for v5.11, round 2 - audio support for several more boards - PHY timing fixes * tag 'amlogic-dt64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: arm64: dts: meson: add i2c3/rtc nodes and vrtc alias to GT-King/GT-King-Pro arm64: dts: meson: g12b: w400: fix PHY deassert timing requirements arm64: dts: meson: g12a: x96-max: fix PHY deassert timing requirements ARM: dts: meson: fix PHY deassert timing requirements arm64: dts: meson: fix PHY deassert timing requirements arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements arm64: dts: meson: minor fixups for Khadas VIM/VIM2 dts arm64: dts: meson: add audio playback to wetek-play2 arm64: dts: meson: add audio playback to wetek-hub arm64: dts: meson: add audio playback to odroid-c2 arm64: dts: meson: add audio playback to nanopi-k2 arm64: dts: meson: add audio playback to khadas-vim2 arm64: dts: meson: add audio playback to khadas-vim arm64: dts: meson: add audio playback to a95x arm64: dts: meson-axg: add GE2D node Link: https://lore.kernel.org/r/7ho8j4gkxo.fsf@baylibre.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09Merge tag 'samsung-dt-5.11-3' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dt Samsung DTS ARM changes for v5.11, part three 1. S3C bindings and DTS cleanup, 2. Correct the clock rates for SPI0 in Artik 5 which is a fix for recently introduced Ethernet on SPI on Artik 5 board. * tag 'samsung-dt-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: dts: exynos: Reduce assigned-clocks entries for SPI0 on Artik5 board ARM: dts: s3c6410: correct SMDK6410 board compatible ARM: dts: s3c24xx: add SMDK2416 board compatible dt-bindings: arm: samsung: document S3C6410-based boards binding dt-bindings: arm: samsung: document SMDK2416 board binding Link: https://lore.kernel.org/r/20201207074528.4475-2-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09Merge tag 'v5.11-rockchip-dts32-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/dt Veyron backlight fix, another fix for dtbs-check and some additions to the rk3288-based VMARC boards. * tag 'v5.11-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: ARM: dts: rockchip: Add SDIO0 node for VMARC SOM ARM: dts: rockchip: Add rtc node for VMARC SOM ARM: dts: rockchip: rename wdt nodename to watchdog on rv1108 ARM: dts: rockchip: Remove 0 point from brightness-levels on rk3288-veyron Link: https://lore.kernel.org/r/4582475.GXAFRqVoOG@phil Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09Merge tag 'at91-dt-5.11-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/dt AT91 DT for 5.11 #2: - switch to new TCB PWM bindings - rework ADC bindings - fix sama5d2 securam and can1 * tag 'at91-dt-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: dts: at91: sama5d2: fix CAN message ram offset and size ARM: dts: at91: sama5d2: map securam as device ARM: dts: at91: sam9x60ek: remove bypass property ARM: dts: at91: remove deprecated ADC properties ARM: dts: at91: at91sam9rl: fix ADC triggers ARM: dts: at91: sama5d3: use proper ADC compatible ARM: dts: at91: kizbox: switch to new pwm-atmel-tcb binding Link: https://lore.kernel.org/r/20201206013840.GA627225@piout.net Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'imx-dt-5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt i.MX device tree update for 5.11: - New board support: imx6dl-alti6p, imx6dl-lanmcu, mx6qp-prtwd3, imx6ul-phytec-segin and imx7d-flex-concentrator. - Fix schema warnings for pwm-leds, watchdog and GPIO hog devices. - A few patches from Krzysztof Kozlowski to correct compatibles for i.MX6/7 boards. - A series from Matthias Schiffer to polish imx7-mba7 board support. - Update i.MX6/7 device trees for fsl,stop-mode support. - Correct fsl,rcpm-wakeup of LS1021A to get flextimer wake-up work. - A series of patch from Stefan Riedmueller to update phytec and segin devices. - Other small and random changes. * tag 'imx-dt-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (40 commits) ARM: dts: imx28: Fix label name for L2 switch ARM: dts: add Protonic WD3 board ARM: dts: imx6qdl-kontron-samx6i: increase i2c-frequency ARM: dts: imx7: add support for kamstrup flex concentrator ARM: dts: ls1021a: update calibration table for TMU module ARM: dts: ls1021a: fix rcpm failed to claim resource ARM: dts: ls1021a: fix flextimer failed to wake system ARM: dts: imx50-kobo-aura: Enable eKTF2132 touchscreen ARM: dts: imx: Change flexcan node name to "can" ARM: dts: imx6q-pico: fix board compatibles ARM: dts: add Van der Laan LANMCU board ARM: dts: add Altesco I6P board ARM: dts: imx6ul: segin: peb-av-02: Mark stmpe touch as wakeup-source ARM: dts: imx6ul: phytec: Add support for optional PEB-AV-02 LCD adapter ARM: dts: imx6ul: segin: Add phyBOARD-Segin with eMMC phyCORE-i.MX6UL ARM: dts: imx50-kobo-aura: Add 'grp' suffix to pinctrl node names ARM: dts: imx: add usb alias ARM: dts: imx6/7: sync fsl,stop-mode with current flexcan driver ARM: dts: imx: Fix schema warnings for pwm-leds ARM: dts: imx7s-warp: correct vendor in compatible to Element14 ... Link: https://lore.kernel.org/r/20201202142717.9262-4-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'samsung-dt-5.11-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dt Samsung DTS ARM changes for v5.11, part two 1. Add devicetree of Samsung Galaxy Note 10.1 tablets (GT-N8010/GT-N8013), called P4 Note. These are quite old but still functional devices, based on Exynos4412. 2. Minor cleanups in Odroid XU3 Ethernet. 3. Minor fixes: ADC io-channel-ranges and P4 Note touchscreen GPIO polarity. * tag 'samsung-dt-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: dts: exynos: switch Atmel mxt reset GPIO to active low on P4 Note ARM: dts: s5pv210: Drop unneeded io-channel-ranges property in Aries ARM: dts: s5pv210: Drop incorrect use of io-channel-ranges property ARM: dts: exynos: Drop incorrect use of io-channel-ranges ARM: dts: exynos: add Samsung's Exynos4412-based P4 Note boards dt-bindings: arm: samsung: document bindings for P4 Note family board ARM: dts: exynos: Add an alias for the Ethernet interface on Odroid XU3 ARM: dts: exynos: Fix Ethernet interface description on Odroid XU3 Link: https://lore.kernel.org/r/20201201204404.22675-2-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'keystone_dts_for_5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into arm/dt ARM: dts: Keystone DTS update for v5.11 - HDMI Support - Analog Audio data support * tag 'keystone_dts_for_5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone: ARM: dts: keystone-k2g-evm: add HDMI and analog audio data Link: https://lore.kernel.org/r/1606851472-26593-1-git-send-email-santosh.shilimkar@oracle.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'qcom-dts-for-5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt Qualcomm DT updates for 5.11 This adds support for SD card, WiFi, LED, touchscreeni, touchkey and fuel gauge to the Samsung Galaxy S5. Nexus 5 also gains fuel gauge support. Finally IPQ6016 gains support for the QPIC NAND controller. * tag 'qcom-dts-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: arm64: dts: ipq6018: Add the QPIC peripheral nodes ARM: dts: qcom-pma8084: Drop incorrect use of io-channel-ranges ARM: dts: qcom: msm8974-lge-nexus5: Add fuel gauge ARM: dts: qcom: msm8974-klte: Add fuel gauge ARM: dts: qcom: msm8974-klte: Add support for SD card ARM: dts: qcom: msm8974-klte: Add support for wifi ARM: dts: qcom: msm8974-klte: Add gpio expander chip ARM: dts: qcom: msm8974-klte: Add support for led ARM: dts: qcom: msm8974-klte: Add support for touchscreen ARM: dts: qcom: msm8974-klte: Add support for touchkey ARM: dts: qcom: msm8974-klte: Merge pinctrl nodes Link: https://lore.kernel.org/r/20201130190148.345302-1-bjorn.andersson@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'mvebu-dt-5.11-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/dt mvebu dt for 5.11 (part 1) - Add support for MikroTik CRS3xx switches - Add support for RD-AC3X-48G4X2XL board : Armada 382 SoC connected to Prestera AC3X ASIC through PCI - Clean-up kirkwood device tree: replace "ok" by "okay" - Improve device tree for PCA953x gpio expander nodes - Use compliant node name for USB3 on armada 375 - 98dx3236 SoCs: - remove non-existent i2c1 - add i2c0 pinctrl information - Improve device tree for Turris Omnia * tag 'mvebu-dt-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu: ARM: dts: mvebu: Add device tree for RD-AC3X-48G4X2XL board arm: dts: marvell: armada-375: Harmonize DWC USB3 DT nodes name ARM: dts: turris-omnia: remove unneeded status = "okay" properties ARM: dts: turris-omnia: update ethernet-phy node and handle name ARM: dts: turris-omnia: add LED controller node ARM: dts: turris-omnia: add SFP node ARM: dts: turris-omnia: describe switch interrupt ARM: dts: turris-omnia: add comphy handle to eth2 ARM: dts: turris-omnia: enable HW buffer management ARM: dts: Add i2c0 pinctrl information for 98dx3236 ARM: dts: Remove non-existent i2c1 from 98dx3236 ARM: dts: armada: align GPIO hog names with dtschema ARM: dts: dove: fix PCA95xx GPIO expander properties on A510 ARM: dts: kirkwood: replace status value "ok" by "okay" ARM: dts: mvebu: Add CRS328-4C-20S-4S board ARM: dts: mvebu: Add CRS305-1G-4S board ARM: dts: mvebu: Add CRS326-24G-2S board Link: https://lore.kernel.org/r/87h7p6j0m7.fsf@BL-laptop Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'nuvoton-5.11-devicetree' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc into arm/dt Nuvoton device tree updates for 5.11 - New machines * Fii Kudo, a NPCM730 BMC * Quanta GSJ, a NPCM750 BMC * Qanta Olympus RunBMC, a NPCM750 BMC - Updates to the common device trees and NCPM750 EVB * tag 'nuvoton-5.11-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc: dt-bindings: vendor-prefixes: Add FII ARM: dts: nuvoton: Add Fii Kudo system ARM: dts: nuvoton: Add NPCM7xx RunBMC Olympus Quanta machine ARM: dts: nuvoton: Add Quanta GSJ BMC ARM: dts: nuvoton: Add Quanta GSJ BMC pinctrl ARM: dts: nuvoton: Add Nuvoton NPCM730 device tree ARM: dts: nuvoton: Add new device nodes to NPCM750 EVB ARM: dts: nuvoton: Add new device nodes ARM: dts: nuvoton: Add pinctrl and GPIO node ARM: dts: nuvoton: Modify timer register size ARM: dts: nuvoton: Modify clock parameters Link: https://lore.kernel.org/r/CACPK8Xd8RaLv_p6t9ckBwCwtZww+2YYOAoAYQdvni0dxc2mS7A@mail.gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'arm-soc/for-5.11/devicetree' of ↵Arnd Bergmann
https://github.com/Broadcom/stblinux into arm/dt This pull request contains Broadcom ARM-based SoCs changes for 5.11, please pull the following: - Vivek updates the Linksys EA9500 DTS by adding the two additional switch port nodes (5 & 7), providing a flash partition layout to make the device usable with OpenWrt, and finally switches to using the pin controller rather than using mdio-mux to get the same outcome. - Serge fixes the USB Device Tree nodes unit name to be conformant to the recommended name patterns. - Rafal re-arranges all the nodes that belonged to the CRU block to be under the CRU node (such as PLLs). He also disables the USB3 PHY node for devices that lack USB3 and adds USB3 support to the Luxul XWR-3150 DTS. - Jonathan drops the incorrect 'io-channel-ranges' from the Cygnus SoC DTSI. - Maxime disables the Wi-Fi frequencies (around 2.4GHz) for HDMI on the Raspberry Pi 4 due to some cross-talk between the two blocks. - Pavel updates the DWC2 USB controller RX FIFO sizes to be more accurate for all BCM283x (Raspberr Pi) SoCs. - Florian updates all BCM5301x and NSP Device Tree files to allow switching the Broadcom B53 Ethernet switch device tree binding to YAML. * tag 'arm-soc/for-5.11/devicetree' of https://github.com/Broadcom/stblinux: (22 commits) dt-bindings: net: dsa: b53: Add YAML bindings ARM: dts: NSP: Provide defaults ports container node ARM: dts: NSP: Add a SRAB compatible string for each board ARM: dts: NSP: Fix Ethernet switch SGMII register name ARM: dts: NSP: Update ethernet switch node name ARM: dts: BCM5301X: Provide defaults ports container node ARM: dts: BCM5301X: Add a default compatible for switch node ARM: dts: BCM5301X: Update Ethernet switch node name dt-bindings: net: dsa: Document sfp and managed properties dt-bindings: net: dsa: Extend switch nodes pattern ARM: dts: bcm283x: increase dwc2's RX FIFO size ARM: dts: rpi-4: disable wifi frequencies ARM: dts: Cygnus: Drop incorrect io-channel-ranges property. ARM: dts: BCM5301X: Enable USB 3 PHY on Luxul XWR-3150 ARM: dts: BCM5301X: Disable USB 3 PHY on devices without USB 3 ARM: dts: BCM5301X: Move CRU devices to the CRU node ARM: dts: BCM5301X: Linksys EA9500 make use of pinctrl ARM: dts: BCM5301X: Use corretc pinctrl compatible for 4709x ARM: dts: BCM5301X: Linksys EA9500 add fixed partitions ARM: dts: BCM5310X: Harmonize xHCI DT nodes name ... Link: https://lore.kernel.org/r/20201128163410.1691529-3-f.fainelli@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'sunxi-dt-for-5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/dt Our usual bunch of patches to support the Allwinner SoCs, this time adding: - Some nice pinephone additions - I2S support for the A64, H3, H5 and H6 - New boards: Elimo Impetus, Elimo Initium, FriendlyArm ZeroPi, NanoPi R1 * tag 'sunxi-dt-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: (21 commits) ARM: dts: sun8i-h2-plus-bananapi-m2-zero: add gpio-line-names ARM: dts: sun8i: h3: Add initial NanoPi R1 support arm64: dts: allwinner: pinephone: Use generic sensor node names ARM: dts: sun8i: s3: Add dts for the Elimo Initium SBC dt-bindings: arm: sunxi: add Elimo bindings ARM: dts: sun8i: s3: Add dtsi for the Elimo Impetus SoM arm64: dts: allwinner: pinephone: Add Bluetooth support arm64: dts: allwinner: pinephone: Add WiFi support arm64: dts: allwinner: pinephone: Add light/proximity sensor arm64: dts: allwinner: pinephone: Add LED flash arm64: dts: allwinner: pinephone: Set ALDO3 to exactly 3v0 arm64: dts: allwinner: pinephone: Remove AC power supply arm: dts: sunxi: h3/h5: Add I2S2 node arm64: dts: allwinner: a64: Add I2S2 node arm64: dts: allwinner: h6: Add I2S1 node arm64: dts: allwinner: h6: PineH64 model B: Add wifi ARM: dts: sun8i-v3s: Add I2C1 PB pins description ARM: dts: sun8i: V3/S3: Add UART1 pin definitions to the V3/S3 dtsi dt-bindings: vendors: add Elimo Engineering vendor prefix ARM: dts: sun8i: add FriendlyArm ZeroPi support ... Link: https://lore.kernel.org/r/551fdf4f-8a0b-4a22-ba49-b4f61520a9ab.lettre@localhost Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'at91-dt-5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/dt AT91 DT for 5.11: - fix USB host pinctrl - fix DT schema warnings * tag 'at91-dt-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: dts: at91: sama5d3_xplained: add pincontrol for USB Host ARM: dts: at91: sama5d4_xplained: add pincontrol for USB Host ARM: dts: at91: sam9x60: add pincontrol for USB Host ARM: dts: at91: at91-sama5d27_som1: fix EEPROM compatible ARM: dts: at91: Fix schema warnings for pwm-leds ARM: dts: at91: smartkiz: Reference led node directly Link: https://lore.kernel.org/r/20201127220403.GA1735041@piout.net Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08ARM: configs: drop unused BACKLIGHT_GENERIC optionAndrey Zhizhikin
Commit 7ecdea4a0226 ("backlight: generic_bl: Remove this driver as it is unused") removed geenric_bl driver from the tree, together with corresponding config option. Remove BACKLIGHT_GENERIC config item from all ARM configurations. Fixes: 7ecdea4a0226 ("backlight: generic_bl: Remove this driver as it is unused") Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Sam Ravnborg <sam@ravnborg.org> Link: https://lore.kernel.org/r/20201201222922.3183-2-andrey.zhizhikin@leica-geosystems.com' Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'samsung-defconfig-5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/defconfig Samsung defconfig changes for v5.11 1. Enable sound driver for Midas (Exynos4412 based) boards. 2. Enable ax88796c Ethernet driver for Artik5 (Exynos3250) board. 3. Enable Atmel touchscreen and STMPE ADC drivers for P4 Note board. 4. Build Samsung Exynos EHCI as module, to match the setting for the PHY driver. * tag 'samsung-defconfig-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: multi_v7_defconfig: make Samsung Exynos EHCI driver a module ARM: exynos_defconfig: compile Atmel MXT touchscreeen as module ARM: defconfig: add STMPE ADC driver for P4 Note ARM: defconfig: Enable ax88796c driver for Exynos boards ARM: multi_v7_defconfig: enable sound driver for Midas platform ARM: exynos_defconfig: enable sound driver for Midas platform Link: https://lore.kernel.org/r/20201201204404.22675-1-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'arm-soc/for-5.11/defconfig' of ↵Arnd Bergmann
https://github.com/Broadcom/stblinux into arm/defconfig This pull request contains ARM multi_v7_defconfig changes for 5.11, please pull the following: - Florian enables the ARM SCMI protocol, and the common clock, HWMON and CPU frequency scaling drivers since those are used by ARCH_BRCMSTB platforms * tag 'arm-soc/for-5.11/defconfig' of https://github.com/Broadcom/stblinux: ARM: multi_v7_defconfig: Enable ARM SCMI protocol and drivers Link: https://lore.kernel.org/r/20201128163410.1691529-1-f.fainelli@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'sunxi-config-for-5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/defconfig One patch to add the Realtek PHY driver to sunxi_defconfig * tag 'sunxi-config-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: ARM: configs: sunxi: enable Realtek PHY Link: https://lore.kernel.org/r/dffb8a7e-27ea-4025-868a-caa5868eb1ef.lettre@localhost Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08Merge tag 'at91-defconfig-5.11' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/defconfig AT91 defconfig for 5.11: - filter compiled media drivers * tag 'at91-defconfig-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: ARM: configs: at91_dt: resync with media changes ARM: configs: at91: sama5: resync with media changes Link: https://lore.kernel.org/r/20201127215517.GA1733715@piout.net Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-08ARM: 9034/1: __div64_32(): straighten up inline asm constraintsNicolas Pitre
The ARM version of __div64_32() encapsulates a call to __do_div64 with non-standard argument passing. In particular, __n is a 64-bit input argument assigned to r0-r1 and __rem is an output argument sharing half of that r0-r1 register pair. With __n being an input argument, the compiler is in its right to presume that r0-r1 would still hold the value of __n past the inline assembly statement. Normally, the compiler would have assigned non overlapping registers to __n and __rem if the value for __n is needed again. However, here we enforce our own register assignment and gcc fails to notice the conflict. In practice this doesn't cause any problem as __n is considered dead after the asm statement and *n is overwritten. However this is not always guaranteed and clang rightfully complains. Let's fix it properly by making __n into an input-output variable. This makes it clear that those registers representing __n have been modified. Then we can extract __rem as the high part of __n with plain C code. This asm constraint "abuse" was likely relied upon back when gcc didn't handle 64-bit values optimally. Turns out that gcc is now able to optimize things and produces the same code with this patch applied. Reported-by: Antony Yu <swpenim@gmail.com> Signed-off-by: Nicolas Pitre <nico@fluxnic.net> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2020-12-08ARM: 9030/1: entry: omit FP emulation for UND exceptions taken in kernel modeArd Biesheuvel
There are a couple of problems with the exception entry code that deals with FP exceptions (which are reported as UND exceptions) when building the kernel in Thumb2 mode: - the conditional branch to vfp_kmode_exception in vfp_support_entry() may be out of range for its target, depending on how the linker decides to arrange the sections; - when the UND exception is taken in kernel mode, the emulation handling logic is entered via the 'call_fpe' label, which means we end up using the wrong value/mask pairs to match and detect the NEON opcodes. Since UND exceptions in kernel mode are unlikely to occur on a hot path (as opposed to the user mode version which is invoked for VFP support code and lazy restore), we can use the existing undef hook machinery for any kernel mode instruction emulation that is needed, including calling the existing vfp_kmode_exception() routine for unexpected cases. So drop the call to call_fpe, and instead, install an undef hook that will get called for NEON and VFP instructions that trigger an UND exception in kernel mode. While at it, make sure that the PC correction is accurate for the execution mode where the exception was taken, by checking the PSR Thumb bit. Cc: Dmitry Osipenko <digetx@gmail.com> Cc: Kees Cook <keescook@chromium.org> Fixes: eff8728fe698 ("vmlinux.lds.h: Add PGO and AutoFDO input sections") Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
generated by cgit (git 2.34.1) at 2025-05-03 19:31:27 +0000