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2021-01-30ARM: dts: imx6: RDU2: adjust audio devices nomenclatureCory Tusar
This adds a "HPA1" prefix to the amplifiers on both audio cards, this is done in order to get more consistency for userspace running on RDU2 and RDU3, where we have two amplifiers on a single card device in the "Zest" configuration. Also adjust the card names to the new standard expected by userspace. Signed-off-by: Cory Tusar <cory.tusar@zii.aero> [adjusted commit message] Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-30ARM: dts: imx6: RDU2: only trigger IRQ on falling edge ucs1002 ALERT pinLucas Stach
The ALERT signaling happens on the falling edge of the signal, as rising edge doesn't really have any notion, as it may happen much later (due to shared IRQ line) or too early if the chip resolves the fault itself. So only trigger the IRQ on the edge we are actually interested in. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-30ARM: dts: imx6: RDU2: enable RMI4 reduced reportingLucas Stach
To use the reduced reporting mode the threshold values need to be set explicitly. Configure the threshold to be less than 0.5% of the full touchscreen range. This seems to be a good compromise between system load and input accurancy. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-30ARM: dts: imx6: RDU2: reduce i2c drive-strengthLucas Stach
The current 25 Ohm drive-strength is much too strong, resulting in significant overshoot of the signal. Reduce the drive-strength to 75 Ohm to get rid of those issues. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-30ARM: dts: imx6: rdu2: enable WDOG1Philipp Zabel
Enable the i.MX6 WDOG1 internal watchdog for warm reboots. This allows to issue emergency restarts without clearing the RAM, so collecting oops logs from ramoops pstore in barebox becomes feasible. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-29ARM: dts: imx6-sr-som: increase at8035 PHY gigabit Tw parameterRussell King
Increase the SmartEEE Tw parameter for Atheros PHYs to stop gigabit links from sporadically dropping. Jon Nettleton found that a value of 23 was the minimum to give a stable link, but testing with the Com Express 7 module shows 24 is the minimum - so 23 may still be on the margins. Use 24 instead for consistency across SolidRun platforms. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-29Merge tag 'imx-fixes-5.11-2' into imx/dtShawn Guo
i.MX fixes for 5.11, round 2: - Fix pcf2127 reset for imx7d-flex-concentrator board. - Fix i.MX6 suspend with Thumb-2 kernel. - Fix ethernet-phy address issue on imx6qdl-sr-som board. - Fix GPIO3 `gpio-ranges` on i.MX8MP. - Select SOC_BUS for IMX_SCU driver to fix build issue.
2021-01-18ARM: dts: imx6: add wakeup support via magic packetJoakim Zhang
Add wakeup support via magic packet on i.MX platforms. Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18arm64: dts: imx8mp: Correct the gpio ranges of gpio3Jacky Bai
On i.MX8MP, The GPIO3's secondary gpio-ranges's 'gpio controller offset' cell value should be 26, so correct it. Signed-off-by: Jacky Bai <ping.bai@nxp.com> Fixes: 6d9b8d20431f ("arm64: dts: freescale: Add i.MX8MP dtsi support") Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx6qdl-sr-som: fix some cubox-i platformsRussell King
The PHY address bit 2 is configured by the LED pin. Attaching a LED to this pin is not sufficient to guarantee this configuration pin is correctly read. This leads to some platforms having their PHY at address 0 and others at address 4. If there is no phy-handle specified, the FEC driver will scan the PHY bus for a PHY and use that. Consequently, adding the DT configuration of the PHY and the phy properties to the FEC driver broke some boards. Fix this by removing the phy-handle property, and listing two PHY entries for both possible PHY addresses, so that the DT configuration for the PHY can be found by the PHY driver. Fixes: 86b08bd5b994 ("ARM: dts: imx6-sr-som: add ethernet PHY configuration") Reported-by: Christoph Mattheis <christoph.mattheis@arcor.de> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx: e60k02: add second uartAndreas Kemnade
There is another uart next to the console uart used by vendor uboot and kernel, enable it and document its location. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx6sl-tolino-shine3: correct console uart pinmuxAndreas Kemnade
Configuration was correct enough to work with the pre-configuration done by uboot. While at it, also document the location. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx6sl-tolino-shine2hd: add second uartAndreas Kemnade
There is another uart next to the console uart used by vendor uboot and kernel, enable it and document its location. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx6sl-tolino-shine2hd: correct console uart pinmuxAndreas Kemnade
Configuration was correct enough to work with the pre-configuration done by uboot. While at it, also document the location. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: imx: build suspend-imx6.S with arm instruction setMax Krummenacher
When the kernel is configured to use the Thumb-2 instruction set "suspend-to-memory" fails to resume. Observed on a Colibri iMX6ULL (i.MX 6ULL) and Apalis iMX6 (i.MX 6Q). It looks like the CPU resumes unconditionally in ARM instruction mode and then chokes on the presented Thumb-2 code it should execute. Fix this by using the arm instruction set for all code in suspend-imx6.S. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Fixes: df595746fa69 ("ARM: imx: add suspend in ocram support for i.mx6q") Acked-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx7d-flex-concentrator: fix pcf2127 resetBruno Thomsen
RTC pcf2127 device driver has changed default behaviour of the watchdog feature in v5.11-rc1. Now you need to explicitly enable it with a device tree property, "reset-source", when used in the board design. Fixes: 71ac13457d9d ("rtc: pcf2127: only use watchdog when explicitly available") Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Cc: Bruno Thomsen <bth@kamstrup.com> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: add Kverneland TGO boardOleksij Rempel
VICTGO is the Kverneland TGO IsoBus universal terminal for agricultural applications on tractors Co-Developed-by: David Jander <david@protonic.nl> Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: add Kverneland UT1, UT1Q and UT1POleksij Rempel
VICUT1(Q,P) is the Kverneland UT1(Q,P) IsoBus universal terminal for agricultural applications on tractors. Co-Developed-by: David Jander <david@protonic.nl> Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx6ul-14x14-evk: Add camera supportFabio Estevam
Add support for the OV5640 parallel camera module. Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx6ul-14x14-evk: Describe the KSZ8081 resetFabio Estevam
There are two KSZ8081 on the imx6ul-14x14-evk: one has the reset line controlled by the Q1 output of the 74LV595PW expander, and the other by the Q2 output. The KSZ8081 datasheet states that the tsr parameter (Stable supply voltage (VDDIO, VDDA_3.3) to reset high) to be 10ms minimum and "After the de-assertion of reset, wait a minimum of 100 µs before starting programming on the MIIM (MDC/MDIO) interface." Describe these parameters in the devicetree. Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx6ul-14x14-evk: Enable the GPIO expanderFabio Estevam
Currently the 74LV595PW GPIO expander is not functional because its OE pin is not driven low. Make it funcional by passing the 'enable-gpios' property inside the GPIO expander node. After putting the OE pin in low state, the outputs of the 74LV595PW all go low. The two KSZ8081 Ethernet PHYs reset lines are driven from the the GPIO expander and as they remain low, this causes the Ethernet PHYs not to be detected. There is one solution to this problem as suggested by Andrew Lunn: "Some devices will respond to MDIO while held in reset, some don't. If your PHYs don't you need to add a compatible of the form ethernet-phy-id[a-f0-9]{4}\\.[a-f0-9]{4}$ with the PHY ID. The PHY will then be probed, independent of if it can be found on the bus or not, and that probing will enable the GPIO." So pass the "ethernet-phy-id0022.1560" for the KSZ8081 PHYs so that they both can be functional after 74LV595PW is activated. Suggested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx6ul-14x14-evk: Fix SPI chipselect polarityFabio Estevam
The GPIO expander SPI chipselect is active low. Mark it as such to avoid the following warning: [ 6.839213] gpio@0 enforce active low on chipselect handle Signed-off-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18ARM: dts: imx7: Mark timer with arm,cpu-registers-not-fw-configuredMarek Vasut
There is no firmware to initialize the arch timer register on all iMX7 systems, add arm,cpu-registers-not-fw-configured to let Linux do it. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> To: linux-arm-kernel@lists.infradead.org Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-11ARM: dts: imx6qdl-gw52xx: fix duplicate regulator namingKoen Vandeputte
2 regulator descriptions carry identical naming. This leads to following boot warning: [ 0.173138] debugfs: Directory 'vdd1p8' with parent 'regulator' already present! Fix this by renaming the one used for audio. Fixes: 5051bff33102 ("ARM: dts: imx: ventana: add LTC3676 PMIC support") Signed-off-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com> Cc: stable@vger.kernel.org # v4.11 Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-11ARM: dts: add Protonic PRTI6G boardOleksij Rempel
Protonic PRTI6G is a reference platform for industrial, safety critical applications Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-11ARM: dts: imx6q(dl): Move 'port' nodes under 'ports' for HDMI encoderLaurent Pinchart
In preparation for the conversion of the DWC HDMI TX device tree bindings to YAML, move the HDMI encoder's 'port' nodes under a 'ports' node. The 'ports' node is optional in the OF graph implementation, but YAML bindings require it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-11ARM: dts: add Protonic MVT boardOleksij Rempel
PRTMVT is the reference platform for Protonic industrial touchscreen terminals. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-11ARM: dts: imx6qdl-kontron-samx6i: fix i2c_lcd/cam default statusMarco Felsch
Fix typo so the gpio i2c busses are really disabled. Fixes: 2125212785c9 ("ARM: dts: imx6qdl-kontron-samx6i: add Kontron SMARC SoM Support") Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-11ARM: dts: tbs2910: rename MMC node aliasesSoeren Moch
to be consistent with kernel versions up to v5.9 (mmc aliases not used here). usdhc1 is not wired up on this board and therefore cannot be used. Start mmc aliases with usdhc2. Signed-off-by: Soeren Moch <smoch@web.de> Cc: stable@vger.kernel.org # 5.10.x Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-10ARM: dts: imx6q-logicpd: Drop unused clock-names referenceAdam Ford
The wlf,wm8962 driver does not use the clock-names property. Drop it. Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-10arm64: dts: ls1028a: fix the offset of the reset registerMichael Walle
The offset of the reset request register is 0, the absolute address is 0x1e60000. Boards without PSCI support will fail to perform a reset: [ 26.734700] reboot: Restarting system [ 27.743259] Unable to restart system [ 27.746845] Reboot failed -- System halted Fixes: 8897f3255c9c ("arm64: dts: Add support for NXP LS1028A SoC") Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-07ARM: dts: imx28: add pinmux for USB1 overcurrent on pwm2Mans Rullgard
Add pinmux setting for USB1 overcurrent on pwm2 pad. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-07ARM: dts: add Plymovent BAS boardOleksij Rempel
Plymovent BAS is a base system controller produced for the Plymovent filter systems. Co-Developed-by: David Jander <david@protonic.nl> Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-07ARM: dts: add Plymovent M2M boardOleksij Rempel
Plymovent M2M is a control interface produced for the Plymovent filter systems. Co-Developed-by: David Jander <david@protonic.nl> Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-07arm64: dts: imx8mn: Fix duplicate node nameShengjiu Wang
Error log: sysfs: cannot create duplicate filename '/bus/platform/devices/30000000.bus' The spba bus name is duplicate with aips bus name. Refine spba bus name to fix this issue. Fixes: 970406eaef3a ("arm64: dts: imx8mn: Enable Asynchronous Sample Rate Converter") Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-05ARM: dts: imx6qdl-kontron-samx6i: fix pwms for lcd-backlightMarco Felsch
The pwms property have to specify the no-/inverted flag since commit fa28d8212ede ("ARM: dts: imx: default to #pwm-cells = <3> in the SoC dtsi files"). Fixes: fa28d8212ede ("ARM: dts: imx: default to #pwm-cells = <3> in the SoC dtsi files") Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-12-24Merge tag 'riscv-for-linus-5.11-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fix from Palmer Dabbelt "Avoid trying to initialize memory regions outside the usable range" * tag 'riscv-for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: RISC-V: Fix usage of memblock_enforce_memory_limit
2020-12-24Merge tag 'powerpc-5.11-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Four commits fixing various things in the new C VDSO code - One fix for a 32-bit VMAP stack bug - Two minor build fixes Thanks to Cédric Le Goater, Christophe Leroy, and Will Springer. * tag 'powerpc-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/32: Fix vmap stack - Properly set r1 before activating MMU on syscall too powerpc/vdso: Fix DOTSYM for 32-bit LE VDSO powerpc/vdso: Don't pass 64-bit ABI cflags to 32-bit VDSO powerpc/vdso: Block R_PPC_REL24 relocations powerpc/smp: Add __init to init_big_cores() powerpc/time: Force inlining of get_tb() powerpc/boot: Fix build of dts/fsl
2020-12-24Merge tag 'irq-core-2020-12-23' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "This is the second attempt after the first one failed miserably and got zapped to unblock the rest of the interrupt related patches. A treewide cleanup of interrupt descriptor (ab)use with all sorts of racy accesses, inefficient and disfunctional code. The goal is to remove the export of irq_to_desc() to prevent these things from creeping up again" * tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits) genirq: Restrict export of irq_to_desc() xen/events: Implement irq distribution xen/events: Reduce irq_info:: Spurious_cnt storage size xen/events: Only force affinity mask for percpu interrupts xen/events: Use immediate affinity setting xen/events: Remove disfunct affinity spreading xen/events: Remove unused bind_evtchn_to_irq_lateeoi() net/mlx5: Use effective interrupt affinity net/mlx5: Replace irq_to_desc() abuse net/mlx4: Use effective interrupt affinity net/mlx4: Replace irq_to_desc() abuse PCI: mobiveil: Use irq_data_get_irq_chip_data() PCI: xilinx-nwl: Use irq_data_get_irq_chip_data() NTB/msi: Use irq_has_action() mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc pinctrl: nomadik: Use irq_has_action() drm/i915/pmu: Replace open coded kstat_irqs() copy drm/i915/lpe_audio: Remove pointless irq_to_desc() usage s390/irq: Use irq_desc_kstat_cpu() in show_msi_interrupt() parisc/irq: Use irq_desc_kstat_cpu() in show_interrupts() ...
2020-12-24Merge tag 'efi_updates_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI updates from Borislav Petkov: "These got delayed due to a last minute ia64 build issue which got fixed in the meantime. EFI updates collected by Ard Biesheuvel: - Don't move BSS section around pointlessly in the x86 decompressor - Refactor helper for discovering the EFI secure boot mode - Wire up EFI secure boot to IMA for arm64 - Some fixes for the capsule loader - Expose the RT_PROP table via the EFI test module - Relax DT and kernel placement restrictions on ARM with a few followup fixes: - fix the build breakage on IA64 caused by recent capsule loader changes - suppress a type mismatch build warning in the expansion of EFI_PHYS_ALIGN on ARM" * tag 'efi_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi: arm: force use of unsigned type for EFI_PHYS_ALIGN efi: ia64: disable the capsule loader efi: stub: get rid of efi_get_max_fdt_addr() efi/efi_test: read RuntimeServicesSupported efi: arm: reduce minimum alignment of uncompressed kernel efi: capsule: clean scatter-gather entries from the D-cache efi: capsule: use atomic kmap for transient sglist mappings efi: x86/xen: switch to efi_get_secureboot_mode helper arm64/ima: add ima_arch support ima: generalize x86/EFI arch glue for other EFI architectures efi: generalize efi_get_secureboot efi/libstub: EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should not default to yes efi/x86: Only copy the compressed kernel image in efi_relocate_kernel() efi/libstub/x86: simplify efi_is_native()
2020-12-22Merge tag 'kbuild-v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Use /usr/bin/env for shebang lines in scripts - Remove useless -Wnested-externs warning flag - Update documents - Refactor log handling in modpost - Stop building modules without MODULE_LICENSE() tag - Make the insane combination of 'static' and EXPORT_SYMBOL an error - Improve genksyms to handle _Static_assert() * tag 'kbuild-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: Documentation/kbuild: Document platform dependency practises Documentation/kbuild: Document COMPILE_TEST dependencies genksyms: Ignore module scoped _Static_assert() modpost: turn static exports into error modpost: turn section mismatches to error from fatal() modpost: change license incompatibility to error() from fatal() modpost: turn missing MODULE_LICENSE() into error modpost: refactor error handling and clarify error/fatal difference modpost: rename merror() to error() kbuild: don't hardcode depmod path kbuild: doc: document subdir-y syntax kbuild: doc: clarify the difference between extra-y and always-y kbuild: doc: split if_changed explanation to a separate section kbuild: doc: merge 'Special Rules' and 'Custom kbuild commands' sections kbuild: doc: fix 'List directories to visit when descending' section kbuild: doc: replace arch/$(ARCH)/ with arch/$(SRCARCH)/ kbuild: doc: update the description about kbuild Makefiles Makefile.extrawarn: remove -Wnested-externs warning tweewide: Fix most Shebang lines
2020-12-22Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge KASAN updates from Andrew Morton. This adds a new hardware tag-based mode to KASAN. The new mode is similar to the existing software tag-based KASAN, but relies on arm64 Memory Tagging Extension (MTE) to perform memory and pointer tagging (instead of shadow memory and compiler instrumentation). By Andrey Konovalov and Vincenzo Frascino. * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (60 commits) kasan: update documentation kasan, mm: allow cache merging with no metadata kasan: sanitize objects when metadata doesn't fit kasan: clarify comment in __kasan_kfree_large kasan: simplify assign_tag and set_tag calls kasan: don't round_up too much kasan, mm: rename kasan_poison_kfree kasan, mm: check kasan_enabled in annotations kasan: add and integrate kasan boot parameters kasan: inline (un)poison_range and check_invalid_free kasan: open-code kasan_unpoison_slab kasan: inline random_tag for HW_TAGS kasan: inline kasan_reset_tag for tag-based modes kasan: remove __kasan_unpoison_stack kasan: allow VMAP_STACK for HW_TAGS mode kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK kasan: introduce set_alloc_info kasan: rename get_alloc/free_info kasan: simplify quarantine_put call site kselftest/arm64: check GCR_EL1 after context switch ...
2020-12-22Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linuxLinus Torvalds
Pull ARM updates from Russell King: - Rework phys/virt translation - Add KASan support - Move DT out of linear map region - Use more PC-relative addressing in assembly - Remove FP emulation handling while in kernel mode - Link with '-z norelro' - remove old check for GCC <= 4.2 in ARM unwinder code - disable big endian if using clang's linker * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (46 commits) ARM: 9027/1: head.S: explicitly map DT even if it lives in the first physical section ARM: 9038/1: Link with '-z norelro' ARM: 9037/1: uncompress: Add OF_DT_MAGIC macro ARM: 9036/1: uncompress: Fix dbgadtb size parameter name ARM: 9035/1: uncompress: Add be32tocpu macro ARM: 9033/1: arm/smp: Drop the macro S(x,s) ARM: 9032/1: arm/mm: Convert PUD level pgtable helper macros into functions ARM: 9031/1: hyp-stub: remove unused .L__boot_cpu_mode_offset symbol ARM: 9044/1: vfp: use undef hook for VFP support detection ARM: 9034/1: __div64_32(): straighten up inline asm constraints ARM: 9030/1: entry: omit FP emulation for UND exceptions taken in kernel mode ARM: 9029/1: Make iwmmxt.S support Clang's integrated assembler ARM: 9028/1: disable KASAN in call stack capturing routines ARM: 9026/1: unwind: remove old check for GCC <= 4.2 ARM: 9025/1: Kconfig: CPU_BIG_ENDIAN depends on !LD_IS_LLD ARM: 9024/1: Drop useless cast of "u64" to "long long" ARM: 9023/1: Spelling s/mmeory/memory/ ARM: 9022/1: Change arch/arm/lib/mem*.S to use WEAK instead of .weak ARM: kvm: replace open coded VA->PA calculations with adr_l call ARM: head.S: use PC relative insn sequence to calculate PHYS_OFFSET ...
2020-12-22Merge tag 'dma-mapping-5.11' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds
Pull dma-mapping updates from Christoph Hellwig: - support for a partial IOMMU bypass (Alexey Kardashevskiy) - add a DMA API benchmark (Barry Song) - misc fixes (Tiezhu Yang, tangjianqiang) * tag 'dma-mapping-5.11' of git://git.infradead.org/users/hch/dma-mapping: selftests/dma: add test application for DMA_MAP_BENCHMARK dma-mapping: add benchmark support for streaming DMA APIs dma-contiguous: fix a typo error in a comment dma-pool: no need to check return value of debugfs_create functions powerpc/dma: Fallback to dma_ops when persistent memory present dma-mapping: Allow mixing bypass and mapped DMA operation
2020-12-22x86/split-lock: Avoid returning with interrupts enabledAndi Kleen
When a split lock is detected always make sure to disable interrupts before returning from the trap handler. The kernel exit code assumes that all exits run with interrupts disabled, otherwise the SWAPGS sequence can race against interrupts and cause recursing page faults and later panics. The problem will only happen on CPUs with split lock disable functionality, so Icelake Server, Tiger Lake, Snow Ridge, Jacobsville. Fixes: ca4c6a9858c2 ("x86/traps: Make interrupt enable/disable symmetric in C code") Fixes: bce9b042ec73 ("x86/traps: Disable interrupts in exc_aligment_check()") # v5.8+ Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Tony Luck <tony.luck@intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-22kasan: allow VMAP_STACK for HW_TAGS modeAndrey Konovalov
Even though hardware tag-based mode currently doesn't support checking vmalloc allocations, it doesn't use shadow memory and works with VMAP_STACK as is. Change VMAP_STACK definition accordingly. Link: https://lkml.kernel.org/r/ecdb2a1658ebd88eb276dee2493518ac0e82de41.1606162397.git.andreyknvl@google.com Link: https://linux-review.googlesource.com/id/I3552cbc12321dec82cd7372676e9372a2eb452ac Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Marco Elver <elver@google.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-22kasan, arm64: unpoison stack only with CONFIG_KASAN_STACKAndrey Konovalov
There's a config option CONFIG_KASAN_STACK that has to be enabled for KASAN to use stack instrumentation and perform validity checks for stack variables. There's no need to unpoison stack when CONFIG_KASAN_STACK is not enabled. Only call kasan_unpoison_task_stack[_below]() when CONFIG_KASAN_STACK is enabled. Note, that CONFIG_KASAN_STACK is an option that is currently always defined when CONFIG_KASAN is enabled, and therefore has to be tested with #if instead of #ifdef. Link: https://lkml.kernel.org/r/d09dd3f8abb388da397fd11598c5edeaa83fe559.1606162397.git.andreyknvl@google.com Link: https://linux-review.googlesource.com/id/If8a891e9fe01ea543e00b576852685afec0887e3 Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Marco Elver <elver@google.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-22kasan, arm64: enable CONFIG_KASAN_HW_TAGSAndrey Konovalov
Hardware tag-based KASAN is now ready, enable the configuration option. Link: https://lkml.kernel.org/r/a6fa50d3bb6b318e05c6389a44095be96442b8b0.1606161801.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Alexander Potapenko <glider@google.com> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Marco Elver <elver@google.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-22kasan, arm64: print report from tag fault handlerAndrey Konovalov
Add error reporting for hardware tag-based KASAN. When CONFIG_KASAN_HW_TAGS is enabled, print KASAN report from the arm64 tag fault handler. SAS bits aren't set in ESR for all faults reported in EL1, so it's impossible to find out the size of the access the caused the fault. Adapt KASAN reporting code to handle this case. Link: https://lkml.kernel.org/r/b559c82b6a969afedf53b4694b475f0234067a1a.1606161801.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Co-developed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Alexander Potapenko <glider@google.com> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Marco Elver <elver@google.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-22kasan, arm64: implement HW_TAGS runtimeAndrey Konovalov
Provide implementation of KASAN functions required for the hardware tag-based mode. Those include core functions for memory and pointer tagging (tags_hw.c) and bug reporting (report_tags_hw.c). Also adapt common KASAN code to support the new mode. Link: https://lkml.kernel.org/r/cfd0fbede579a6b66755c98c88c108e54f9c56bf.1606161801.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Alexander Potapenko <glider@google.com> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Marco Elver <elver@google.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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