aboutsummaryrefslogtreecommitdiffstats
path: root/arch
AgeCommit message (Collapse)AuthorFilesLines
2021-09-13arm64: zynqmp: Sync psgtr node location with zcu104-revAMichal Simek2-14/+14
zcu104-revA has node below pinctrl which is not the same on revC. Sync location for easier comparison. Also zc1751-dc1 is not using this position. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/4b691bab5ba83b5352d4669bd54bcdb8273b2156.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Add reset description for sataMichal Simek1-0/+1
Sata needs to get reset before configuration that's why add property for it there. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/b7f61daa2fe1a2300767af73c46b8082088f741a.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Move rtc to different location on zcu104-revAMichal Simek1-4/+4
Move it the same location as is on zcu104-revC for easier comparison. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/fe6c3f96fbd359409b7fef85d2c2ada584b3d0cc.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Wire qspi on multiple boardsMichal Simek9-2/+121
Couple of boards have qspi on the board that's why enable controller and describe them. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/01a69ee6590245b5bee70a2553f6faac0d31ca76.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Remove information about dma clock on zcu106Michal Simek1-1/+0
Clock setting is not static anymore that's why it depends on firmware setup that's why remove this comment. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/17973ffda4e163a4b89d4732fe6fc7e089962ae7.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Update rtc calibration valueSrinivas Neeli1-1/+1
As per the design specification "The 16-bit Seconds Calibration Value represents the number of Oscillator Ticks that are required to measure the largest time period that is less than or equal to 1 second. For an oscillator that is 32.768 KHz, this value will be 0x7FFF." Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/0d36d9fe999ff82f10d42ab5fc0d1e907c26ac34.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Add note about UHS mode on some boardsMichal Simek4-1/+15
Add note about UHS mode and add no-1-8-v property to zc1751-dc1 board. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/462b95844e7aedb00768035913265d7af90c3b2f.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Move DP nodes to the end of file on zcu106Michal Simek1-11/+11
This location is used by others DTs files that's why this move. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/d14404afd846f975a421023e9e9b6ad18585719f.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Remove can aliases from zc1751Michal Simek1-2/+0
Networking subsystem is not using aliases that's why remove them for can devices. There is also no any other Xilinx ZynqMP DT file with them. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/475a60fc4d01ba9c61579801fb84620b6905dcad.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Add reset-on-timeout to all boards and modify default timeout valueMounika Grace Akula1-1/+2
This patch adds reset-on-timeout to FPD WDT which will trigger an interrupt to PMU when watchdog expiry happens and PMU takes the necessary action. If this property is not enabled, reason will not be known when watchdog expiry happens. This patch also modifies the default timeout to 60 seconds. Reason is that if u-boot enables WDT, it will set the timeout to 10 seconds and this is not enough to boot till Linux and start the WDT application in Linux. 60 seconds is the maximum safest value to boot till Linux and start the WDT application. Users need to change this timeout value to fit their needs. Signed-off-by: Mounika Grace Akula <mounika.grace.akula@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/5848a81447921240fddfe2f5749ae0746fcbbdbd.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: List reset property for ethernet phyMichal Simek2-1/+3
Add information about reset gpio for ethernet phy in case someone wants to use it. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/e153f0cda37a2a6ea1c6e11fb0a4af1d400f29e2.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Add nvmem alises for eepromsMichal Simek5-1/+6
Use nvmem alias to point to eeprom memory which contains information about board. The change is done based on discussion in the link below. Link: https://lore.kernel.org/r/CAL_JsqLMDqpkyg-Q7mUfw-XH67-v068Q6e9wTq2UOoN=0-_coQ@mail.gmail.com Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/9b860b47ec3ca64340b4d29317e92b667236d7d1.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Move clock node to zynqmp-clk-ccf.dtsiMichal Simek2-16/+12
Using clock firmware driver is not the only one option how to configure clock. In past fixed clocks were also used and that configuration is still valid that's why move clock firmware node to the same file where zynqmp_clk references are used. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/48bfd8cf0de4d10b9c4d745218595f28954f70d5.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Remove additional newlineMichal Simek1-1/+0
This is sync between Linux and U-Boot. Trivial change. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/16f6f41c8d748d3c7cd4f49b2839e63a5b41c944.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Enable nand driver for dc2 and dc3Michal Simek2-1/+34
Add description for nand devices on zc1751 dc2 and dc3 boards. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/e103821bdb717132559e780f1a4f4f6fefc95688.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Wire DP and DPDMA for dc1/dc4Michal Simek2-1/+17
Enable Display Port and Display Port DMA for zc1751 dc1 and dc4. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/dbbd212bcc587e835d6df2f91622f5baa124bff5.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Add missing mio-bank properties to dc1 and dc5Michal Simek2-0/+3
Add missing mio-bank properties to zc1751 dc1 and dc5 boards. The same change was done by commit 63481699d6e3 ("arm64: dts: zynqmp: Add missing mio-bank properties to sdhcis"). Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/2b2ab31639c706651dfd319f5b6bc59e68f111b6.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Add missing SMID for pcie to zynqmp.dtsiStefano Stabellini1-0/+2
The SMMU is disabled in device tree so this change has no impact. The benefit is that this way it is in sync with xen.dtsi. Xen enables the SMMU and makes use of it. Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/43f21f5033f7806fba049474bced6131c8cb98ba.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Disable WP on zcu111Michal Simek1-0/+1
On this board there is SD slot without WP connected. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/88e41d4f5c6a7353762bd5ad38b92ce352c3a123.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Add phy description for usb3.0Michal Simek6-0/+21
usb3.0 requires serdes setting that's why also wire it up. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/cd856e5f87bc967373691d04e79de3d0022ef424.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Correct psgtr description for zcu100-revCMichal Simek1-4/+5
Enable psgtr node and also fix clock names to be aligned with other zynqmp boards. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/bd35fdaac08208578b2bb5059ba2c59bb4e66dac.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Wire psgtr for zc1751-xm015Michal Simek1-0/+31
Add psgtr description for SATA and USB. Display Port could be also added but it wasn't tested yet. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/3fb11fdb9ade828fa174379515e45ba02bc17247.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Correct zcu111 psgtr descriptionMichal Simek1-3/+3
DP and SATA psgtrs are swapped. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/d47cbf374423cb71bb4be5e45e3d834da0c4673a.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Add pinctrl description for all boardsMichal Simek10-11/+2340
The commit 1dccb5ec0123 ("dt-bindings: pinctrl: Add binding for ZynqMP pinctrl driver") and commit 8b242ca700f8 ("pinctrl: Add Xilinx ZynqMP pinctrl driver support") add support for Xilinx ZynqMP pinctrl driver that's why describe pins configuration for current boards. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/d8bc42600da85f5a23d977d4b61e6528720573e5.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Fix irps5401 device nodesMichal Simek2-7/+12
- Add compatible string for irps5401 chip. - Do not use irps54012 as device node which is not correct. - Fix addresses of irps5401/u180 on zcu104 revisions. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/10bf5f9e7a18579626fb1850e3a8a7476ba6f2ed.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Enable fpd_dma for zcu104 platformsMichal Simek1-0/+32
Enable fpd_dma for this board. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/76d330bf2b2414efa2e98965a3ca7f7c43e3645f.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Do not duplicate flash partition label propertyAmit Kumar Mahapatra1-2/+2
In kernel 5.4, support has been added for reading MTD devices via the nvmem API. For this the mtd devices are registered as read-only NVMEM providers under sysfs with the same name as the flash partition label property. So if flash partition label property of multiple flash devices are identical then the second mtd device fails to get registered as a NVMEM provider. This patch fixes the issue by having different label property for different flashes. Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/6c4b9b9232b93d9e316a63c086540fd5bf6b8687.1623684253.git.michal.simek@xilinx.com
2021-09-13arm64: zynqmp: Disable CCI by defaultMichal Simek1-0/+1
There is no reason to have CCI no enabled by default. Enable it when your system configuration requires it. In Xilinx configuration flow this is work for Device Tree Generator which reads information from HW Design configuration. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/f507d45fbaa0bd31f641e758efa40a2532466ced.1623684253.git.michal.simek@xilinx.com
2021-09-13MIPS: JZ4780: CI20: DTS: add SPI controller configArtur Rojek2-15/+38
1. Add nodes for the two SPI controllers found in MIPS Creator CI20. 2. Reparent SPI clock source to effectively use MPLL and set its clock rate to 54MHz. NOTE: To use the SPI controllers, `pinctrl-0` property must be set in order to configure the used pins. As SPI functionality is multiplexed on multiple pin groups, this choice is left to the user. An example configuration: ``` &spi0 { pinctrl-0 = <&pins_spi0>; } pins_spi0: spi0 { function = "ssi0"; groups = "ssi0-dt-e", "ssi0-dr-e", "ssi0-clk-e", "ssi0-ce0-e", "ssi0-ce1-e"; bias-disable; }; ``` Consult the CI20 pinout description for more details. Signed-off-by: Artur Rojek <contact@artur-rojek.eu> Link: https://lore.kernel.org/r/20210830230139.21476-4-contact@artur-rojek.eu Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-12Merge tag 'smp-urgent-2021-09-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds4-20/+8
Pull CPU hotplug updates from Thomas Gleixner: "Updates for the SMP and CPU hotplug: - Remove DEFINE_SMP_CALL_CACHE_FUNCTION() which is a left over of the original hotplug code and now causing trouble with the ARM64 cache topology setup due to the pointless SMP function call. It's not longer required as the hotplug callbacks are guaranteed to be invoked on the upcoming CPU. - Remove the deprecated and now unused CPU hotplug functions - Rewrite the CPU hotplug API documentation" * tag 'smp-urgent-2021-09-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation: core-api/cpuhotplug: Rewrite the API section cpu/hotplug: Remove deprecated CPU-hotplug functions. thermal: Replace deprecated CPU-hotplug functions. drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()
2021-09-11Merge tag 'riscv-for-linus-5.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds8-14/+20
Pull more RISC-V updates from Palmer Dabbelt: - A pair of defconfig additions, for NVMe and the EFI filesystem localization options. - A larger address space for stack randomization. - A cleanup to our install rules. - A DTS update for the Microchip Icicle board, to fix the serial console. - Support for build-time table sorting, which allows us to have __ex_table read-only. * tag 'riscv-for-linus-5.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Move EXCEPTION_TABLE to RO_DATA segment riscv: Enable BUILDTIME_TABLE_SORT riscv: dts: microchip: mpfs-icicle: Fix serial console riscv: move the (z)install rules to arch/riscv/Makefile riscv: Improve stack randomisation on RV64 riscv: defconfig: enable NLS_CODEPAGE_437, NLS_ISO8859_1 riscv: defconfig: enable BLK_DEV_NVME
2021-09-11x86/hyperv: remove on-stack cpumask from hv_send_ipi_mask_allbutselfWei Liu1-17/+26
It is not a good practice to allocate a cpumask on stack, given it may consume up to 1 kilobytes of stack space if the kernel is configured to have 8192 cpus. The internal helper functions __send_ipi_mask{,_ex} need to loop over the provided mask anyway, so it is not too difficult to skip `self' there. We can thus do away with the on-stack cpumask in hv_send_ipi_mask_allbutself. Adjust call sites of __send_ipi_mask as needed. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Suggested-by: Michael Kelley <mikelley@microsoft.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Fixes: 68bb7bfb7985d ("X86/Hyper-V: Enable IPI enlightenments") Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210910185714.299411-3-wei.liu@kernel.org
2021-09-10riscv: Move EXCEPTION_TABLE to RO_DATA segmentJisheng Zhang2-3/+2
_ex_table section is read-only, so move it to RO_DATA. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: Enable BUILDTIME_TABLE_SORTJisheng Zhang1-0/+1
Enable BUILDTIME_TABLE_SORT to sort the exception table at build time rather than during boot. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: dts: microchip: mpfs-icicle: Fix serial consoleGeert Uytterhoeven1-1/+5
Currently, nothing is output on the serial console, unless "console=ttyS0,115200n8" or "earlycon" are appended to the kernel command line. Enable automatic console selection using chosen/stdout-path by adding a proper alias, and configure the expected serial rate. While at it, add aliases for the other three serial ports, which are provided on the same micro-USB connector as the first one. Fixes: 0fa6107eca4186ad ("RISC-V: Initial DTS for Microchip ICICLE board") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: move the (z)install rules to arch/riscv/MakefileMasahiro Yamada2-10/+5
Currently, the (z)install targets in arch/riscv/Makefile descend into arch/riscv/boot/Makefile to invoke the shell script, but there is no good reason to do so. arch/riscv/Makefile can run the shell script directly. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: Improve stack randomisation on RV64Kefeng Wang1-0/+3
This enlarges the bits availiable for stack randomisation on RV64 from the default of 8MiB to 1GiB, to match arm64 and x86. Also, update the documentation to reflect our support for stack randomisation. Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> [Palmer: commit text] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: defconfig: enable NLS_CODEPAGE_437, NLS_ISO8859_1Heinrich Schuchardt1-0/+2
The EFI system partition uses the FAT file system. Many distributions add an entry in /etc/fstab for the ESP. We must ensure that mounting does not fail. The default code page for FAT is 437 (cf. CONFIG_FAT_DEFAULT_CODEPAGE). The default IO character set is "iso8859-1" (cf. CONFIG_NLS_ISO8859_1). So let's enable NLS_CODEPAGE_437 and NLS_ISO8859_1 in defconfig. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: defconfig: enable BLK_DEV_NVMEHeinrich Schuchardt1-0/+2
NVMe is a non-volatile storage media attached via PCIe. As NVMe has much higher throughput than other block devices like SATA it is a must have for RISC-V. Enable CONFIG_BLK_DEV_NVME. The HiFive Unmatched is a board providing M.2 slots for NVMe drives. Enable CONFIG_PCIE_FU740. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-11Merge branch 'linus' into smp/urgentThomas Gleixner1236-21943/+38496
Ensure that all usage sites of get/put_online_cpus() except for the struggler in drivers/thermal are gone. So the last user and the deprecated inlines can be removed.
2021-09-10Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds1-1/+21
Pull arm64 fixes from Catalin Marinas: - Limit the linear region to 51-bit when KVM is running in nVHE mode. Otherwise, depending on the placement of the ID map, kernel-VA to hyp-VA translations may produce addresses that either conflict with other HYP mappings or generate addresses outside of the 52-bit addressable range. - Instruct kmemleak not to scan the memory reserved for kdump as this range is removed from the kernel linear map and therefore not accessible. * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: kdump: Skip kmemleak scan reserved memory for kdump arm64: mm: limit linear region to 51 bits for KVM in nVHE mode
2021-09-10Merge tag 'for-5.15/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds13-170/+93
Pull parisc fixes from Helge Deller: - Build warning fixes in Makefile and Dino PCI driver - Fix when sched_clock is marked unstable - Drop strnlen_user() in favour of generic version - Prevent kernel to write outside userspace signal stack - Remove CONFIG_SET_FS including KERNEL_DS and USER_DS from parisc and switch to __get/put_kernel_nofault() * tag 'for-5.15/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Implement __get/put_kernel_nofault() parisc: Mark sched_clock unstable only if clocks are not syncronized parisc: Move pci_dev_is_behind_card_dino to where it is used parisc: Reduce sigreturn trampoline to 3 instructions parisc: Check user signal stack trampoline is inside TASK_SIZE parisc: Drop useless debug info and comments from signal.c parisc: Drop strnlen_user() in favour of generic version parisc: Add missing FORCE prerequisite in Makefile
2021-09-10arm64: kdump: Skip kmemleak scan reserved memory for kdumpChen Wandun1-0/+6
Trying to boot with kdump + kmemleak, command will result in a crash: "echo scan > /sys/kernel/debug/kmemleak" crashkernel reserved: 0x0000000007c00000 - 0x0000000027c00000 (512 MB) Kernel command line: BOOT_IMAGE=(hd1,gpt2)/vmlinuz-5.14.0-rc5-next-20210809+ root=/dev/mapper/ao-root ro rd.lvm.lv=ao/root rd.lvm.lv=ao/swap crashkernel=512M Unable to handle kernel paging request at virtual address ffff000007c00000 Mem abort info: ESR = 0x96000007 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x07: level 3 translation fault Data abort info: ISV = 0, ISS = 0x00000007 CM = 0, WnR = 0 swapper pgtable: 64k pages, 48-bit VAs, pgdp=00002024f0d80000 [ffff000007c00000] pgd=1800205ffffd0003, p4d=1800205ffffd0003, pud=1800205ffffd0003, pmd=1800205ffffc0003, pte=0068000007c00f06 Internal error: Oops: 96000007 [#1] SMP pstate: 804000c9 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : scan_block+0x98/0x230 lr : scan_block+0x94/0x230 sp : ffff80008d6cfb70 x29: ffff80008d6cfb70 x28: 0000000000000000 x27: 0000000000000000 x26: 00000000000000c0 x25: 0000000000000001 x24: 0000000000000000 x23: ffffa88a6b18b398 x22: ffff000007c00ff9 x21: ffffa88a6ac7fc40 x20: ffffa88a6af6a830 x19: ffff000007c00000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffffffffffffffff x14: ffffffff00000000 x13: ffffffffffffffff x12: 0000000000000020 x11: 0000000000000000 x10: 0000000001080000 x9 : ffffa88a6951c77c x8 : ffffa88a6a893988 x7 : ffff203ff6cfb3c0 x6 : ffffa88a6a52b3c0 x5 : ffff203ff6cfb3c0 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000001 x1 : ffff20226cb56a40 x0 : 0000000000000000 Call trace: scan_block+0x98/0x230 scan_gray_list+0x120/0x270 kmemleak_scan+0x3a0/0x648 kmemleak_write+0x3ac/0x4c8 full_proxy_write+0x6c/0xa0 vfs_write+0xc8/0x2b8 ksys_write+0x70/0xf8 __arm64_sys_write+0x24/0x30 invoke_syscall+0x4c/0x110 el0_svc_common+0x9c/0x190 do_el0_svc+0x30/0x98 el0_svc+0x28/0xd8 el0t_64_sync_handler+0x90/0xb8 el0t_64_sync+0x180/0x184 The reserved memory for kdump will be looked up by kmemleak, this area will be set invalid when kdump service is bring up. That will result in crash when kmemleak scan this area. Fixes: a7259df76702 ("memblock: make memblock_find_in_range method private") Signed-off-by: Chen Wandun <chenwandun@huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20210910064844.3827813-1-chenwandun@huawei.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-09-09parisc: Implement __get/put_kernel_nofault()Helge Deller6-86/+62
Remove CONFIG_SET_FS from parisc, so we need to add __get_kernel_nofault() and __put_kernel_nofault(), define HAVE_GET_KERNEL_NOFAULT and remove set_fs(), get_fs(), load_sr2(), thread_info->addr_limit, KERNEL_DS and USER_DS. The nice side-effect of this patch is that we now can directly access userspace via sr3 without the need to use a temporary sr2 which is either copied from sr3 or set to zero (for kernel space). Signed-off-by: Helge Deller <deller@gmx.de> Suggested-by: Arnd Bergmann <arnd@kernel.org>
2021-09-09Merge tag 'for-linus-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds7-33/+111
Pull UML updates from Richard Weinberger: - Support for VMAP_STACK - Support for splice_write in hostfs - Fixes for virt-pci - Fixes for virtio_uml - Various fixes * tag 'for-linus-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: fix stub location calculation um: virt-pci: fix uapi documentation um: enable VMAP_STACK um: virt-pci: don't do DMA from stack hostfs: support splice_write um: virtio_uml: fix memory leak on init failures um: virtio_uml: include linux/virtio-uml.h lib/logic_iomem: fix sparse warnings um: make PCI emulation driver init/exit static
2021-09-09Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds23-289/+268
Pull ARM development updates from Russell King: - Rename "mod_init" and "mod_exit" so that initcall debug output is actually useful (Randy Dunlap) - Update maintainers entries for linux-arm-kernel to indicate it is moderated for non-subscribers (Randy Dunlap) - Move install rules to arch/arm/Makefile (Masahiro Yamada) - Drop unnecessary ARCH_NR_GPIOS definition (Linus Walleij) - Don't warn about atags_to_fdt() stack size (David Heidelberg) - Speed up unaligned copy_{from,to}_kernel_nofault (Arnd Bergmann) - Get rid of set_fs() usage (Arnd Bergmann) - Remove checks for GCC prior to v4.6 (Geert Uytterhoeven) * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9118/1: div64: Remove always-true __div64_const32_is_OK() duplicate ARM: 9117/1: asm-generic: div64: Remove always-true __div64_const32_is_OK() ARM: 9116/1: unified: Remove check for gcc < 4 ARM: 9110/1: oabi-compat: fix oabi epoll sparse warning ARM: 9113/1: uaccess: remove set_fs() implementation ARM: 9112/1: uaccess: add __{get,put}_kernel_nofault ARM: 9111/1: oabi-compat: rework fcntl64() emulation ARM: 9114/1: oabi-compat: rework sys_semtimedop emulation ARM: 9108/1: oabi-compat: rework epoll_wait/epoll_pwait emulation ARM: 9107/1: syscall: always store thread_info->abi_syscall ARM: 9109/1: oabi-compat: add epoll_pwait handler ARM: 9106/1: traps: use get_kernel_nofault instead of set_fs() ARM: 9115/1: mm/maccess: fix unaligned copy_{from,to}_kernel_nofault ARM: 9105/1: atags_to_fdt: don't warn about stack size ARM: 9103/1: Drop ARCH_NR_GPIOS definition ARM: 9102/1: move theinstall rules to arch/arm/Makefile ARM: 9100/1: MAINTAINERS: mark all linux-arm-kernel@infradead list as moderated ARM: 9099/1: crypto: rename 'mod_init' & 'mod_exit' functions to be module-specific
2021-09-09Merge tag 's390-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds17-49/+63
Pull more s390 updates from Heiko Carstens: "Except for the xpram device driver removal it is all about fixes and cleanups. - Fix topology update on cpu hotplug, so notifiers see expected masks. This bug was uncovered with SCHED_CORE support. - Fix stack unwinding so that the correct number of entries are omitted like expected by common code. This fixes KCSAN selftests. - Add kmemleak annotation to stack_alloc to avoid false positive kmemleak warnings. - Avoid layering violation in common I/O code and don't unregister subchannel from child-drivers. - Remove xpram device driver for which no real use case exists since the kernel is 64 bit only. Also all hypervisors got required support removed in the meantime, which means the xpram device driver is dead code. - Fix -ENODEV handling of clp_get_state in our PCI code. - Enable KFENCE in debug defconfig. - Cleanup hugetlbfs s390 specific Kconfig dependency. - Quite a lot of trivial fixes to get rid of "W=1" warnings, and and other simple cleanups" * tag 's390-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: hugetlbfs: s390 is always 64bit s390/ftrace: remove incorrect __va usage s390/zcrypt: remove incorrect kernel doc indicators scsi: zfcp: fix kernel doc comments s390/sclp: add __nonstring annotation s390/hmcdrv_ftp: fix kernel doc comment s390: remove xpram device driver s390/pci: read clp_list_pci_req only once s390/pci: fix clp_get_state() handling of -ENODEV s390/cio: fix kernel doc comment s390/ctrlchar: fix kernel doc comment s390/con3270: use proper type for tasklet function s390/cpum_cf: move array from header to C file s390/mm: fix kernel doc comments s390/topology: fix topology information when calling cpu hotplug notifiers s390/unwind: use current_frame_address() to unwind current task s390/configs: enable CONFIG_KFENCE in debug_defconfig s390/entry: make oklabel within CHKSTG macro local s390: add kmemleak annotation in stack_alloc() s390/cio: dont unregister subchannel from child-drivers
2021-09-09arm64: mm: limit linear region to 51 bits for KVM in nVHE modeArd Biesheuvel1-1/+15
KVM in nVHE mode divides up its VA space into two equal halves, and picks the half that does not conflict with the HYP ID map to map its linear region. This worked fine when the kernel's linear map itself was guaranteed to cover precisely as many bits of VA space, but this was changed by commit f4693c2716b35d08 ("arm64: mm: extend linear region for 52-bit VA configurations"). The result is that, depending on the placement of the ID map, kernel-VA to hyp-VA translations may produce addresses that either conflict with other HYP mappings (including the ID map itself) or generate addresses outside of the 52-bit addressable range, neither of which is likely to lead to anything useful. Given that 52-bit capable cores are guaranteed to implement VHE, this only affects configurations such as pKVM where we opt into non-VHE mode even if the hardware is VHE capable. So just for these configurations, let's limit the kernel linear map to 51 bits and work around the problem. Fixes: f4693c2716b3 ("arm64: mm: extend linear region for 52-bit VA configurations") Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20210826165613.60774-1-ardb@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-09-09parisc: Mark sched_clock unstable only if clocks are not syncronizedHelge Deller2-6/+3
We check at runtime if the cr16 clocks are stable across CPUs. Only mark the sched_clock unstable by calling clear_sched_clock_stable() if we know that we run on a system which isn't syncronized across CPUs. Signed-off-by: Helge Deller <deller@gmx.de>
2021-09-09parisc: Reduce sigreturn trampoline to 3 instructionsHelge Deller3-9/+8
We can move the INSN_LDI_R20 instruction into the branch delay slot. Signed-off-by: Helge Deller <deller@gmx.de>
Copyright © 1996 – 2026 Jason A. Donenfeld. All Rights Reverse Engineered.