diff options
Diffstat (limited to 'Documentation')
20 files changed, 118 insertions, 53 deletions
diff --git a/Documentation/admin-guide/bootconfig.rst b/Documentation/admin-guide/bootconfig.rst index b342a6796392..cf2edcd09183 100644 --- a/Documentation/admin-guide/bootconfig.rst +++ b/Documentation/admin-guide/bootconfig.rst @@ -62,6 +62,30 @@ Or more shorter, written as following:: In both styles, same key words are automatically merged when parsing it at boot time. So you can append similar trees or key-values. +Same-key Values +--------------- + +It is prohibited that two or more values or arrays share a same-key. +For example,:: + + foo = bar, baz + foo = qux # !ERROR! we can not re-define same key + +If you want to append the value to existing key as an array member, +you can use ``+=`` operator. For example:: + + foo = bar, baz + foo += qux + +In this case, the key ``foo`` has ``bar``, ``baz`` and ``qux``. + +However, a sub-key and a value can not co-exist under a parent key. +For example, following config is NOT allowed.:: + + foo = value1 + foo.bar = value2 # !ERROR! subkey "bar" and value "value1" can NOT co-exist + + Comments -------- @@ -102,9 +126,13 @@ Boot Kernel With a Boot Config ============================== Since the boot configuration file is loaded with initrd, it will be added -to the end of the initrd (initramfs) image file. The Linux kernel decodes -the last part of the initrd image in memory to get the boot configuration -data. +to the end of the initrd (initramfs) image file with size, checksum and +12-byte magic word as below. + +[initrd][bootconfig][size(u32)][checksum(u32)][#BOOTCONFIG\n] + +The Linux kernel decodes the last part of the initrd image in memory to +get the boot configuration data. Because of this "piggyback" method, there is no need to change or update the boot loader and the kernel image itself. diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index b0beae9b9e36..144c1305a4f8 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -136,6 +136,10 @@ dynamic table installation which will install SSDT tables to /sys/firmware/acpi/tables/dynamic. + acpi_no_watchdog [HW,ACPI,WDT] + Ignore the ACPI-based watchdog interface (WDAT) and let + a native driver control the watchdog device instead. + acpi_rsdp= [ACPI,EFI,KEXEC] Pass the RSDP address to the kernel, mostly used on machines running EFI runtime service to boot the diff --git a/Documentation/arm64/memory.rst b/Documentation/arm64/memory.rst index 02e02175e6f5..cf03b3290800 100644 --- a/Documentation/arm64/memory.rst +++ b/Documentation/arm64/memory.rst @@ -129,7 +129,7 @@ this logic. As a single binary will need to support both 48-bit and 52-bit VA spaces, the VMEMMAP must be sized large enough for 52-bit VAs and -also must be sized large enought to accommodate a fixed PAGE_OFFSET. +also must be sized large enough to accommodate a fixed PAGE_OFFSET. Most code in the kernel should not need to consider the VA_BITS, for code that does need to know the VA size the variables are diff --git a/Documentation/arm64/tagged-address-abi.rst b/Documentation/arm64/tagged-address-abi.rst index d4a85d535bf9..4a9d9c794ee5 100644 --- a/Documentation/arm64/tagged-address-abi.rst +++ b/Documentation/arm64/tagged-address-abi.rst @@ -44,8 +44,15 @@ The AArch64 Tagged Address ABI has two stages of relaxation depending how the user addresses are used by the kernel: 1. User addresses not accessed by the kernel but used for address space - management (e.g. ``mmap()``, ``mprotect()``, ``madvise()``). The use - of valid tagged pointers in this context is always allowed. + management (e.g. ``mprotect()``, ``madvise()``). The use of valid + tagged pointers in this context is allowed with the exception of + ``brk()``, ``mmap()`` and the ``new_address`` argument to + ``mremap()`` as these have the potential to alias with existing + user addresses. + + NOTE: This behaviour changed in v5.6 and so some earlier kernels may + incorrectly accept valid tagged pointers for the ``brk()``, + ``mmap()`` and ``mremap()`` system calls. 2. User addresses accessed by the kernel (e.g. ``write()``). This ABI relaxation is disabled by default and the application thread needs to diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst index 7cd56a1993b1..607758a66a99 100644 --- a/Documentation/dev-tools/kunit/usage.rst +++ b/Documentation/dev-tools/kunit/usage.rst @@ -551,6 +551,7 @@ options to your ``.config``: Once the kernel is built and installed, a simple .. code-block:: bash + modprobe example-test ...will run the tests. diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml index 86ad617d2327..5ff9cf26ca38 100644 --- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml +++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml @@ -43,9 +43,13 @@ properties: - enum: - allwinner,sun8i-h3-tcon-tv - allwinner,sun50i-a64-tcon-tv - - allwinner,sun50i-h6-tcon-tv - const: allwinner,sun8i-a83t-tcon-tv + - items: + - enum: + - allwinner,sun50i-h6-tcon-tv + - const: allwinner,sun8i-r40-tcon-tv + reg: maxItems: 1 diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml index 9af873b43acd..8453ee340b9f 100644 --- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml +++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml @@ -33,24 +33,40 @@ properties: maxItems: 1 clocks: - minItems: 2 - maxItems: 3 - items: - - description: The CSI interface clock - - description: The CSI ISP clock - - description: The CSI DRAM clock + oneOf: + - items: + - description: The CSI interface clock + - description: The CSI DRAM clock + + - items: + - description: The CSI interface clock + - description: The CSI ISP clock + - description: The CSI DRAM clock clock-names: - minItems: 2 - maxItems: 3 - items: - - const: bus - - const: isp - - const: ram + oneOf: + - items: + - const: bus + - const: ram + + - items: + - const: bus + - const: isp + - const: ram resets: maxItems: 1 + # FIXME: This should be made required eventually once every SoC will + # have the MBUS declared. + interconnects: + maxItems: 1 + + # FIXME: This should be made required eventually once every SoC will + # have the MBUS declared. + interconnect-names: + const: dma-mem + # See ./video-interfaces.txt for details port: type: object diff --git a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-emc.yaml b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-emc.yaml index dd1843489ad1..3e0a8a92d652 100644 --- a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-emc.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-emc.yaml @@ -347,6 +347,7 @@ examples: interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>; #iommu-cells = <1>; + #reset-cells = <1>; }; external-memory-controller@7001b000 { @@ -363,20 +364,23 @@ examples: timing-0 { clock-frequency = <12750000>; - nvidia,emc-zcal-cnt-long = <0x00000042>; - nvidia,emc-auto-cal-interval = <0x001fffff>; - nvidia,emc-ctt-term-ctrl = <0x00000802>; - nvidia,emc-cfg = <0x73240000>; - nvidia,emc-cfg-2 = <0x000008c5>; - nvidia,emc-sel-dpd-ctrl = <0x00040128>; - nvidia,emc-bgbias-ctl0 = <0x00000008>; nvidia,emc-auto-cal-config = <0xa1430000>; nvidia,emc-auto-cal-config2 = <0x00000000>; nvidia,emc-auto-cal-config3 = <0x00000000>; - nvidia,emc-mode-reset = <0x80001221>; + nvidia,emc-auto-cal-interval = <0x001fffff>; + nvidia,emc-bgbias-ctl0 = <0x00000008>; + nvidia,emc-cfg = <0x73240000>; + nvidia,emc-cfg-2 = <0x000008c5>; + nvidia,emc-ctt-term-ctrl = <0x00000802>; nvidia,emc-mode-1 = <0x80100003>; nvidia,emc-mode-2 = <0x80200008>; nvidia,emc-mode-4 = <0x00000000>; + nvidia,emc-mode-reset = <0x80001221>; + nvidia,emc-mrs-wait-cnt = <0x000e000e>; + nvidia,emc-sel-dpd-ctrl = <0x00040128>; + nvidia,emc-xm2dqspadctrl2 = <0x0130b118>; + nvidia,emc-zcal-cnt-long = <0x00000042>; + nvidia,emc-zcal-interval = <0x00000000>; nvidia,emc-configuration = < 0x00000000 /* EMC_RC */ diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt index 19f5508a7569..4a9145ef15d6 100644 --- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt +++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt @@ -124,7 +124,7 @@ not every application needs SDIO irq, e.g. MMC cards. pinctrl-1 = <&mmc1_idle>; pinctrl-2 = <&mmc1_sleep>; ... - interrupts-extended = <&intc 64 &gpio2 28 GPIO_ACTIVE_LOW>; + interrupts-extended = <&intc 64 &gpio2 28 IRQ_TYPE_LEVEL_LOW>; }; mmc1_idle : pinmux_cirq_pin { diff --git a/Documentation/devicetree/bindings/net/mdio.yaml b/Documentation/devicetree/bindings/net/mdio.yaml index 5d08d2ffd4eb..50c3397a82bc 100644 --- a/Documentation/devicetree/bindings/net/mdio.yaml +++ b/Documentation/devicetree/bindings/net/mdio.yaml @@ -56,7 +56,6 @@ patternProperties: examples: - | davinci_mdio: mdio@5c030000 { - compatible = "ti,davinci_mdio"; reg = <0x5c030000 0x1000>; #address-cells = <1>; #size-cells = <0>; diff --git a/Documentation/filesystems/zonefs.txt b/Documentation/filesystems/zonefs.txt index 935bf22031ca..d54fa98ac158 100644 --- a/Documentation/filesystems/zonefs.txt +++ b/Documentation/filesystems/zonefs.txt @@ -134,7 +134,7 @@ Sequential zone files can only be written sequentially, starting from the file end, that is, write operations can only be append writes. Zonefs makes no attempt at accepting random writes and will fail any write request that has a start offset not corresponding to the end of the file, or to the end of the last -write issued and still in-flight (for asynchrnous I/O operations). +write issued and still in-flight (for asynchronous I/O operations). Since dirty page writeback by the page cache does not guarantee a sequential write pattern, zonefs prevents buffered writes and writeable shared mappings @@ -142,7 +142,7 @@ on sequential files. Only direct I/O writes are accepted for these files. zonefs relies on the sequential delivery of write I/O requests to the device implemented by the block layer elevator. An elevator implementing the sequential write feature for zoned block device (ELEVATOR_F_ZBD_SEQ_WRITE elevator feature) -must be used. This type of elevator (e.g. mq-deadline) is the set by default +must be used. This type of elevator (e.g. mq-deadline) is set by default for zoned block devices on device initialization. There are no restrictions on the type of I/O used for read operations in @@ -196,7 +196,7 @@ additional conditions that result in I/O errors. may still happen in the case of a partial failure of a very large direct I/O operation split into multiple BIOs/requests or asynchronous I/O operations. If one of the write request within the set of sequential write requests - issued to the device fails, all write requests after queued after it will + issued to the device fails, all write requests queued after it will become unaligned and fail. * Delayed write errors: similarly to regular block devices, if the device side @@ -207,7 +207,7 @@ additional conditions that result in I/O errors. causing all data to be dropped after the sector that caused the error. All I/O errors detected by zonefs are notified to the user with an error code -return for the system call that trigered or detected the error. The recovery +return for the system call that triggered or detected the error. The recovery actions taken by zonefs in response to I/O errors depend on the I/O type (read vs write) and on the reason for the error (bad sector, unaligned writes or zone condition change). @@ -222,7 +222,7 @@ condition change). * A zone condition change to read-only or offline also always triggers zonefs I/O error recovery. -Zonefs minimal I/O error recovery may change a file size and a file access +Zonefs minimal I/O error recovery may change a file size and file access permissions. * File size changes: @@ -237,7 +237,7 @@ permissions. A file size may also be reduced to reflect a delayed write error detected on fsync(): in this case, the amount of data effectively written in the zone may be less than originally indicated by the file inode size. After such I/O - error, zonefs always fixes a file inode size to reflect the amount of data + error, zonefs always fixes the file inode size to reflect the amount of data persistently stored in the file zone. * Access permission changes: @@ -281,11 +281,11 @@ Further notes: permissions to read-only applies to all files. The file system is remounted read-only. * Access permission and file size changes due to the device transitioning zones - to the offline condition are permanent. Remounting or reformating the device + to the offline condition are permanent. Remounting or reformatting the device with mkfs.zonefs (mkzonefs) will not change back offline zone files to a good state. * File access permission changes to read-only due to the device transitioning - zones to the read-only condition are permanent. Remounting or reformating + zones to the read-only condition are permanent. Remounting or reformatting the device will not re-enable file write access. * File access permission changes implied by the remount-ro, zone-ro and zone-offline mount options are temporary for zones in a good condition. @@ -301,13 +301,13 @@ Mount options zonefs define the "errors=<behavior>" mount option to allow the user to specify zonefs behavior in response to I/O errors, inode size inconsistencies or zone -condition chages. The defined behaviors are as follow: +condition changes. The defined behaviors are as follow: * remount-ro (default) * zone-ro * zone-offline * repair -The I/O error actions defined for each behavior is detailed in the previous +The I/O error actions defined for each behavior are detailed in the previous section. Zonefs User Space Tools diff --git a/Documentation/hwmon/xdpe12284.rst b/Documentation/hwmon/xdpe12284.rst index 6b7ae98cc536..67d1f87808e5 100644 --- a/Documentation/hwmon/xdpe12284.rst +++ b/Documentation/hwmon/xdpe12284.rst @@ -24,6 +24,7 @@ This driver implements support for Infineon Multi-phase XDPE122 family dual loop voltage regulators. The family includes XDPE12284 and XDPE12254 devices. The devices from this family complaint with: + - Intel VR13 and VR13HC rev 1.3, IMVP8 rev 1.2 and IMPVP9 rev 1.3 DC-DC converter specification. - Intel SVID rev 1.9. protocol. diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst index 0e0eb2c8da7d..6bc126a14b3d 100644 --- a/Documentation/kbuild/makefiles.rst +++ b/Documentation/kbuild/makefiles.rst @@ -765,7 +765,7 @@ is not sufficient this sometimes needs to be explicit. Example:: #arch/x86/boot/Makefile - subdir- := compressed/ + subdir- := compressed The above assignment instructs kbuild to descend down in the directory compressed/ when "make clean" is executed. @@ -1379,9 +1379,6 @@ See subsequent chapter for the syntax of the Kbuild file. in arch/$(ARCH)/include/(uapi/)/asm, Kbuild will automatically generate a wrapper of the asm-generic one. - The convention is to list one subdir per line and - preferably in alphabetic order. - 8 Kbuild Variables ================== diff --git a/Documentation/networking/phy.rst b/Documentation/networking/phy.rst index 1e4735cc0553..256106054c8c 100644 --- a/Documentation/networking/phy.rst +++ b/Documentation/networking/phy.rst @@ -487,8 +487,9 @@ phy_register_fixup_for_id():: The stubs set one of the two matching criteria, and set the other one to match anything. -When phy_register_fixup() or \*_for_uid()/\*_for_id() is called at module, -unregister fixup and free allocate memory are required. +When phy_register_fixup() or \*_for_uid()/\*_for_id() is called at module load +time, the module needs to unregister the fixup and free allocated memory when +it's unloaded. Call one of following function before unloading module:: diff --git a/Documentation/power/index.rst b/Documentation/power/index.rst index 002e42745263..ced8a8007434 100644 --- a/Documentation/power/index.rst +++ b/Documentation/power/index.rst @@ -13,7 +13,6 @@ Power Management drivers-testing energy-model freezing-of-tasks - interface opp pci pm_qos_interface diff --git a/Documentation/process/embargoed-hardware-issues.rst b/Documentation/process/embargoed-hardware-issues.rst index 33edae654599..a19d084f9b2c 100644 --- a/Documentation/process/embargoed-hardware-issues.rst +++ b/Documentation/process/embargoed-hardware-issues.rst @@ -244,23 +244,23 @@ disclosure of a particular issue, unless requested by a response team or by an involved disclosed party. The current ambassadors list: ============= ======================================================== - ARM + ARM Grant Likely <grant.likely@arm.com> AMD Tom Lendacky <tom.lendacky@amd.com> IBM Intel Tony Luck <tony.luck@intel.com> Qualcomm Trilok Soni <tsoni@codeaurora.org> - Microsoft Sasha Levin <sashal@kernel.org> + Microsoft James Morris <jamorris@linux.microsoft.com> VMware Xen Andrew Cooper <andrew.cooper3@citrix.com> - Canonical Tyler Hicks <tyhicks@canonical.com> + Canonical John Johansen <john.johansen@canonical.com> Debian Ben Hutchings <ben@decadent.org.uk> Oracle Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Red Hat Josh Poimboeuf <jpoimboe@redhat.com> SUSE Jiri Kosina <jkosina@suse.cz> - Amazon Peter Bowen <pzb@amzn.com> + Amazon Google Kees Cook <keescook@chromium.org> ============= ======================================================== diff --git a/Documentation/sphinx/parallel-wrapper.sh b/Documentation/sphinx/parallel-wrapper.sh index 7daf5133bdd3..e54c44ce117d 100644 --- a/Documentation/sphinx/parallel-wrapper.sh +++ b/Documentation/sphinx/parallel-wrapper.sh @@ -30,4 +30,4 @@ if [ -n "$parallel" ] ; then parallel="-j$parallel" fi -exec "$sphinx" "$parallel" "$@" +exec "$sphinx" $parallel "$@" diff --git a/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst b/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst index b93f1af68261..88273ebe7823 100644 --- a/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst +++ b/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst @@ -183,7 +183,7 @@ CVE分配 VMware Xen Andrew Cooper <andrew.cooper3@citrix.com> - Canonical Tyler Hicks <tyhicks@canonical.com> + Canonical John Johansen <john.johansen@canonical.com> Debian Ben Hutchings <ben@decadent.org.uk> Oracle Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Red Hat Josh Poimboeuf <jpoimboe@redhat.com> diff --git a/Documentation/virt/kvm/arm/hyp-abi.rst b/Documentation/virt/kvm/arm/hyp-abi.rst index d1fc27d848e9..d9eba93aa364 100644 --- a/Documentation/virt/kvm/arm/hyp-abi.rst +++ b/Documentation/virt/kvm/arm/hyp-abi.rst @@ -11,6 +11,11 @@ hypervisor when running as a guest (under Xen, KVM or any other hypervisor), or any hypervisor-specific interaction when the kernel is used as a host. +Note: KVM/arm has been removed from the kernel. The API described +here is still valid though, as it allows the kernel to kexec when +booted at HYP. It can also be used by a hypervisor other than KVM +if necessary. + On arm and arm64 (without VHE), the kernel doesn't run in hypervisor mode, but still needs to interact with it, allowing a built-in hypervisor to be either installed or torn down. diff --git a/Documentation/x86/index.rst b/Documentation/x86/index.rst index a8de2fbc1caa..265d9e9a093b 100644 --- a/Documentation/x86/index.rst +++ b/Documentation/x86/index.rst @@ -19,7 +19,6 @@ x86-specific Documentation tlb mtrr pat - intel_mpx intel-iommu intel_txt amd-memory-encryption |