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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The original dwmac-sun8i DT bindings have some issue on how to handle
integrated PHY and was reverted in last RC of 4.13.
But now we have a solution so we need to get back that was reverted.
This patch restore arm64 DT about dwmac-sun8i for H5
This reverts a part of commit 87e1f5e8bb4b ("arm64: dts: allwinner: Revert EMAC changes")
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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stmmac bindings docs said that its mdio node must have
compatible = "snps,dwmac-mdio";
Since dwmac-sun8i does not have any good reasons to not doing it, all
their MDIO node must have it.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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The original dwmac-sun8i DT bindings have some issue on how to handle
integrated PHY and was reverted in last RC of 4.13.
But now we have a solution so we need to get back that was reverted.
This patch restore arm64 DT about dwmac-sun8i for A64
This reverts commit 87e1f5e8bb4b ("arm64: dts: allwinner: Revert EMAC changes")
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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The vdso tries to check for a NULL res pointer in __kernel_clock_getres,
but only checks the lower 32 bits as is uses CBZ on the W register the
res pointer is held in.
Thus, if the res pointer happened to be aligned to a 4GiB boundary, we'd
spuriously skip storing the timespec to it, while returning a zero error code
to the caller.
Prevent this by checking the whole pointer, using CBZ on the X register
the res pointer is held in.
Fixes: 9031fefde6f2ac1d ("arm64: VDSO support")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: Andrew Pinski <apinski@cavium.com>
Reported-by: Mark Salyzyn <salyzyn@android.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Fill ESPRESSObin uart0 node with pinctrl information like in the
Armada-3720-DB device tree (which uses the same node).
Also explain how to enable the second UART port available on the
headers. This second port is not enabled by default because both
headers are dedicated to expose general purpose pins and remapping
some of them to use the second UART would break existing users.
Suggested-by: László ÁSHIN <laszlo@ashin.hu>
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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Enable Armada-3720-DB second UART port by adding the corresponding
device tree node in the board DTS and enabling it.
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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Add a node in Armada 37xx DTSI file for the second UART, with a
different compatible due to its extended IP which has some
differences with the first UART already in place.
Make use of this commit to also fully describe the first port and
use the same clear and named interrupt bindings for both ports.
The standard UART (UART0) uses level-interrupts while the extended
UART (UART1) uses edge-triggered interrupts.
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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Add the missing clock property to armada-3700 UART node.
This clock will be used to derive the prescaler value to comply with
the requested baudrate.
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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binutils 2.27
Upon upgrading to binutils 2.27, we found that our lz4 and gzip
compressed kernel images were significantly larger, resulting is 10ms
boot time regressions.
As noted by Rahul:
"aarch64 binaries uses RELA relocations, where each relocation entry
includes an addend value. This is similar to x86_64. On x86_64, the
addend values are also stored at the relocation offset for relative
relocations. This is an optimization: in the case where code does not
need to be relocated, the loader can simply skip processing relative
relocations. In binutils-2.25, both bfd and gold linkers did this for
x86_64, but only the gold linker did this for aarch64. The kernel build
here is using the bfd linker, which stored zeroes at the relocation
offsets for relative relocations. Since a set of zeroes compresses
better than a set of non-zero addend values, this behavior was resulting
in much better lz4 compression.
The bfd linker in binutils-2.27 is now storing the actual addend values
at the relocation offsets. The behavior is now consistent with what it
does for x86_64 and what gold linker does for both architectures. The
change happened in this upstream commit:
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=1f56df9d0d5ad89806c24e71f296576d82344613
Since a bunch of zeroes got replaced by non-zero addend values, we see
the side effect of lz4 compressed image being a bit bigger.
To get the old behavior from the bfd linker, "--no-apply-dynamic-relocs"
flag can be used:
$ LDFLAGS="--no-apply-dynamic-relocs" make
With this flag, the compressed image size is back to what it was with
binutils-2.25.
If the kernel is using ASLR, there aren't additional runtime costs to
--no-apply-dynamic-relocs, as the relocations will need to be applied
again anyway after the kernel is relocated to a random address.
If the kernel is not using ASLR, then presumably the current default
behavior of the linker is better. Since the static linker performed the
dynamic relocs, and the kernel is not moved to a different address at
load time, it can skip applying the relocations all over again."
Some measurements:
$ ld -v
GNU ld (binutils-2.25-f3d35cf6) 2.25.51.20141117
^
$ ls -l vmlinux
-rwxr-x--- 1 ndesaulniers eng 300652760 Oct 26 11:57 vmlinux
$ ls -l Image.lz4-dtb
-rw-r----- 1 ndesaulniers eng 16932627 Oct 26 11:57 Image.lz4-dtb
$ ld -v
GNU ld (binutils-2.27-53dd00a1) 2.27.0.20170315
^
pre patch:
$ ls -l vmlinux
-rwxr-x--- 1 ndesaulniers eng 300376208 Oct 26 11:43 vmlinux
$ ls -l Image.lz4-dtb
-rw-r----- 1 ndesaulniers eng 18159474 Oct 26 11:43 Image.lz4-dtb
post patch:
$ ls -l vmlinux
-rwxr-x--- 1 ndesaulniers eng 300376208 Oct 26 12:06 vmlinux
$ ls -l Image.lz4-dtb
-rw-r----- 1 ndesaulniers eng 16932466 Oct 26 12:06 Image.lz4-dtb
By Siqi's measurement w/ gzip:
binutils 2.27 with this patch (with --no-apply-dynamic-relocs):
Image 41535488
Image.gz 13404067
binutils 2.27 without this patch (without --no-apply-dynamic-relocs):
Image 41535488
Image.gz 14125516
Any compression scheme should be able to get better results from the
longer runs of zeros, not just GZIP and LZ4.
10ms boot time savings isn't anything to get excited about, but users of
arm64+compression+bfd-2.27 should not have to pay a penalty for no
runtime improvement.
Reported-by: Gopinath Elanchezhian <gelanchezhian@google.com>
Reported-by: Sindhuri Pentyala <spentyala@google.com>
Reported-by: Wei Wang <wvw@google.com>
Suggested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Suggested-by: Rahul Chaudhry <rahulchaudhry@google.com>
Suggested-by: Siqi Lin <siqilin@google.com>
Suggested-by: Stephen Hines <srhines@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
[will: added comment to Makefile]
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Enable the GPIO controller driver used for UniPhier SoC family.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt
Pull "Amlogic 64-bit DT updates for v4.15, round 2" from Kevin Hilman:
- add support for new GPIO IRQ driver
* tag 'amlogic-dt64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
ARM64: dts: meson-gx: add external PHY interrupt on some platforms
ARM64: dts: meson-gx: add gpio interrupt controller
ARM64: meson: enable MESON_IRQ_GPIO in Kconfig
ARM64: dts: meson-gxbb-odroidc2: fix usb1 power supply
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt
Pull "Freescale arm64 device tree updates for 4.15" from Shawn Guo:
- Add GICv3 ITS node and PCIe devcies for LS1088A support.
- Enable PCIe support for LS2088A SoC.
- Add OP-TEE support for various Layerscape SoCs, LS1012A, LS1043A,
LS1046A, LS1088A and LS208XA.
- Update DPAA QBMan nodes to use constant defines in the interrupt
description.
- Add DSPI device to support SPI-NOR on LS1012A based boards.
* tag 'imx-dt64-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
arm64: dts: update the DPAA QBMan nodes
arm64: dts: ls1088a: add PCIe controller DT nodes
arm64: dts: ls1088a: add gicv3 ITS DT node
arm64: dts: ls2088a: add pcie support
arm64: dts: ls: Add optee node
dt-bindings: mtd: add sst25wf040b and en25s64 to sip-nor list
dt-bindings: spi: Add fsl,ls1012a-dspi compatible string
arm64: dts: ls1012a: add the DTS node for DSPI support
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next/dt
Pull "Mediatek: 64-bit DT update for v4.15" from Matthias Brugger:
- mt2712: add cpuidle support
* tag 'v4.14-next-dts64' of https://github.com/mbgg/linux-mediatek:
arm64: dts: mediatek: Add cpuidle support for MT2712
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git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt
Pull "Amlogic 64-bit platforms: DT updates for v4.15" from Kevin Hilman:
- new SoC support: A113D
- new boards: Tronsmart Vega S96, Khadas vim2
- reserved memory fixups
- gpio-names cleanups
- MMC cleanups, enable high-speed modes
- misc cleanups
* tag 'amlogic-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
arm64: dts: meson-axg: add initial A113D SoC DT support
dt-bindings: arm: amlogic: Add Meson AXG binding
ARM64: dts: meson-gx: remove unnecessary uart compatible
ARM64: dts: meson-gx: remove unnecessary clocks properties
ARM64: dts: meson-gxl: Add alternate ARM Trusted Firmware reserved memory zone
ARM64: dts: meson-gxm: enable HS400 on the vim2
ARM64: dts: meson-gxbb-nexbox-a95x: Enable USB Nodes
dt-bindings: arm: amlogic: Add Tronsmart Vega S96 binding
ARM64: dts: meson-gxm: Add Vega S96 board
ARM64: dts: meson-gxm: Add support for Khadas VIM2
ARM64: dts: meson-gxl: Take eMMC data strobe out of eMMC pins
ARM64: dts: meson-gxl: adjust libretech-cc gpio-line-names
ARM64: dts: meson-gxl: adjust kvim gpio-line-names
ARM64: dts: meson-gxbb: adjust odroid-c2 gpio-line-names
ARM64: dts: meson-gxbb: adjust nanopi-k2 gpio-line-names
ARM64: dts: meson-gx: adjust gpio-ranges for TEST_N
ARM64: dts: meson-gx: remove gpio offset
ARM: dts: meson8: remove gpio offset
ARM64: dts: meson-gxl-libretech-cc: enable internal phy leds
ARM64: dts: meson-gxl-libretech-cc: enable saradc
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next/dt
Pull "mvebu dt64 for 4.15 (part 1)" from Gregory CLEMENT:
On Armada 7K/8k:
- Improve network support at SoC and board level
- Enable watchdog
- Add UART muxing
- On 7040 DB: add CD SDIO and NAND support
- On 8040 DB: add PCIE more ports and SPI1
On Armada 37xx:
- Fix UART register size
- Add vmmc regulator for SD on 3720 DB
* tag 'mvebu-dt64-4.15-1' of git://git.infradead.org/linux-mvebu:
arm64: dts: marvell: 7040-db: Add the carrier detect pin for SD card on CP
arm64: dts: marvell: 7040-db: Document the gpio expander
arm64: dts: marvell: enable additional PCIe ports on Armada 8040 DB
arm64: dts: marvell: add NAND support on the 7040-DB board
arm64: dts: marvell: Enable Armada-8040-DB CPS SPI1
arm64: dts: marvell: 8040-db: enable the SFP ports
arm64: dts: marvell: 7040-db: enable the SFP port
arm64: dts: marvell: 7040-db: add comphy reference to Ethernet port
arm64: dts: marvell: mcbin: add comphy references to Ethernet ports
arm64: dts: marvell: 37xx: remove empty line
arm64: dts: marvell: cp110: add PPv2 port interrupts
arm64: dts: marvell: add comphy nodes on cp110 master and slave
arm64: dts: marvell: extend the cp110 syscon register area length
arm64: dts: marvell: enable AP806 watchdog
arm64: dts: marvell: Fix A37xx UART0 register size
arm64: dts: marvell: armada-3720-db: Add vmmc regulator for SD slot
arm64: dts: marvell: add UART muxing on Armada 7K/8K
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/dt
Pull "arm64: tegra: Device tree changes for v4.15-rc1" from Thierry Reding:
Enables host1x, VIC, PCIe and the BPMP thermal sensor on Tegra186.
* tag 'tegra-for-4.15-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
arm64: tegra: Add BPMP thermal sensor to Tegra186
arm64: tegra: Enable PCIe on Jetson TX2
arm64: tegra: Add PCIe node for Tegra186
arm64: tegra: Add VIC on Tegra186
arm64: tegra: Add host1x on Tegra186
arm64: tegra: Add #power-domain-cells for BPMP
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https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
Pull "Second Round of Renesas ARM64 Based SoC DT Updates for v4.15" from Simon Horman:
* r8a7795 (H3) and r8a7796 (M3-W) SoCs
- Use R-Car Gen 3 fallback compat string for GPIO
Simon Horman says "Use newly added R-Car GPIO Gen 1, 2 and 3 fallback
compat strings in peace of now deprecated non-generation specific R-Car
GPIO fallback compat string in the DT of Renesas ARM and arm64 based
SoCs.
* r8a7795 (H3) and r8a7796 (M3-W) Salvator boards
- Add dr_mode property for USB2.0 channel 0
Shimoda-san says "Since Salvator-X[S] have a USB2.0 dual-role channel
(CN9), this patch
adds dr_mode property for USB2.0 channel 0 (EHCI/OHCI and HS-USB)
as "otg".
Using dual-role channel (or not) is related to the type of USB receptor
on board specification. So, I added the property into the
salvator-common.dtsi."
- Add pfc node for USB3.0 channel 0
Shimoda-san says "Since a R-Car Gen3 bootloader enables the PFC of
USB3.0 channel 0, the USB3.0 host controller works without this setting
on the kernel. But, this setting should have salvator-common.dtsi. So,
this patch adds the pfc node for USB3.0 channel 0."
* r8a7795 (H3) and r8a7796 (M3-W) Salvator and ULCB boards
- Correct audio_clkout
Morimoto-san says ""audio_clkout" is dummy clock of <&rcar_sound 0> to
avoid clock loop which invites probe conflct. Thus <&rcar_sound 0> and
"audio_clkout" should be same value."
* r8a7795 (H3) and r8a7796 (M3-W) Salvator and ULCB, and
r8a77995 (D3) Draak boards
- Drop "avb_phy_int" from avb_pins
Shimoda-san says "Since the Ethernet AVB driver doesn't support
AVB_PHY_INT handling and it will be handled by a phy driver as a gpio
pin, this patch removes the "avb_phy_int" from the avb_pins node."
* r8a77995 (D3) Draak board
- Enable PWM channels
Shimoda-san says "Each channel connects to LTC2644 for brightness
control."
* r8a77970 (V3M) Eagle and ULCB Kingfisher boards
- Add initial device tree support
* tag 'renesas-arm64-dt2-for-v4.15' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (31 commits)
arm64: dts: renesas: salvator-common: add dr_mode property for USB2.0 channel 0
arm64: dts: r8a7796: Use R-Car GPIO Gen3 fallback compat string
arm64: dts: r8a7795: Use R-Car GPIO Gen3 fallback compat string
arm64: renesas: ulcb: fixup audio_clkout
arm64: renesas: salvator-common: fixup audio_clkout
arm64: dts: renesas: eagle: add EtherAVB support
arm64: dts: r8a77995: Add INTC-EX device node
arm64: dts: r8a77970: Add INTC-EX device node
arm64: dts: r8a7796: Add INTC-EX device node
arm64: dts: ulcb-kf: hog USB3 hub control gpios
arm64: dts: ulcb-kf: enable PCA9548 on I2C4
arm64: dts: ulcb-kf: enable PCA9548 on I2C2
arm64: dts: ulcb-kf: enable TCA9539 on I2C4
arm64: dts: ulcb-kf: enable TCA9539 on I2C2
arm64: dts: ulcb-kf: enable USB3.0 Host
arm64: dts: ulcb-kf: enable PCIE0/1
arm64: dts: ulcb-kf: enable USB2.0 Host channel 0
arm64: dts: ulcb-kf: enable HSUSB
arm64: dts: ulcb-kf: enable CAN0/1
arm64: dts: ulcb-kf: enable SCIF1
...
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier into next/dt
Pull "UniPhier ARM64 SoC DT updates for v4.15" from Masahiro Yamada:
- add thermal monitor and thermal zone nodes
- add efuse nodes
- fix W=2 warnings
- add GPIO controller nodes and related properties
- add resets properties
* tag 'uniphier-dt64-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier:
arm64: dts: uniphier: add resets properties
arm64: dts: uniphier: add eMMC hardware reset provider node
arm64: dts: uniphier: add GPIO hog definition
arm64: dts: uniphier: route on-board device IRQ to GPIO controller
arm64: dts: uniphier: add GPIO controller nodes
arm64: dts: uniphier: fix W=2 build warnings
arm64: dts: uniphier: enable NAND for PXs3 reference board
arm64: dts: uniphier: add efuse node for LD11, LD20, and PXs3
arm64: dts: uniphier: add nodes of thermal monitor and thermal zone for LD20
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https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt
Pull "Allwinner arm64 DT changes for 4.15" from Maxime Ripard:
Most notable changes:
- SPI and DMA support on the a64
- New boards: NanoPi NEO Plus2
* tag 'sunxi-dt64-for-4.15' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm: allwinner: Correct unit name in devicetree binding example
arm64: allwinner: a64: add dma controller references to spi nodes
arm64: allwinner: a64: Add device node for DMA controller
arm64: allwinner: a64: Fix node with unit name and no reg property
arm64: allwinner: a64: Fix simple-bus unit address format error
arm64: allwinner: h5: add NanoPi NEO Plus2 DT support
arm64: allwinner: a64: add SPI nodes
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The generic pte_access_permitted() implementation only checks for
pte_present() (together with the write permission where applicable).
However, for both kernel ptes and PROT_NONE mappings pte_present() also
returns true on arm64 even though such mappings are not user accessible.
Additionally, arm64 now supports execute-only user permission
(PROT_EXEC) which is implemented by clearing the PTE_USER bit.
With this patch the arm64 implementation of pte_access_permitted()
checks for the PTE_VALID and PTE_USER bits together with writable access
if applicable.
Cc: <stable@vger.kernel.org>
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt
Pull "Allwinner DT changes for 4.15" from Maxime Ripard:
The most notable changes are:
- Conversion to the last SoC (A10, A20) to the new clock framework
- HDMI and dual pipeline support for the A10, A20 and A31 DRM driver
- Support for the various power supplies on a number of boards
- Fix of DTC warnings on a number of SoCs, but most of them still need
some work
- New boards: A20-OLinuXino-MICRO-eMMC, TBS A711, Banana Pi M2 Berry,
Banana Pi M2 Ultra
- New R40 SoC support
* tag 'sunxi-dt-for-4.15' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: (63 commits)
ARM: sun8i: r40: enable USB host for Banana Pi M2 Ultra
ARM: sun8i: v40: add 5V regulator for Banana Pi M2 Berry
ARM: sun8i: r40: add 5V regulator for Banana Pi M2 Ultra
ARM: sun8i: r40: add USB host port nodes for R40
ARM: dts: sun4i: Enable HDMI support on some A10 devices
ARM: dts: sun7i: Enable HDMI support on some A20 devices
ARM: dts: sun7i: Add device nodes for display pipelines
ARM: dts: sun4i: Add device nodes for display pipelines
ARM: dts: sun8i: r40: add watchdog device node
ARM: dts: sun5i: reference-design-tablet: Enable AXP209 AC and battery
ARM: dts: sun9i: Change node names to remove underscores
ARM: dts: sun9i: Change node names to remove underscores
ARM: dts: sun4i: Remove underscores from nodes names
ARM: dts: sun4i: Provide default muxing for relevant controllers
ARM: dts: sun4i: Change pinctrl nodes to avoid warning
ARM: dts: sun6i: Enable HDMI support on some A31/A31s devices
ARM: dts: sun6i: Add device node for HDMI controller
ARM: dts: sun4i: Change LRADC node names to avoid warnings
ARM: dts: sun4i: Remove skeleton and memory to avoid warnings
ARM: dts: sun4i: Remove gpio-keys warnings
...
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next/soc
Pull "mvebu arm64 for 4.15 (part 1)" from Gregory CLEMENT:
For Armada 7K/8K, enable NAND, RTC, comphy and 10G PHY in the
defconfig
* tag 'mvebu-arm64-4.15-1' of git://git.infradead.org/linux-mvebu:
arm64: defconfig: enable RTC on Armada 7K/8K SoCs
arm64: defconfig: enable NAND on Armada 7K/8K SoCs
arm64: defconfig: enable Marvell CP110 comphy
arm64: defconfig: enable the Marvell 10G PHY as a module
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/soc
Pull "arm64: tegra: Default configuration updates for v4.15-rc1" from Thierry Reding:
This enables the PCI host controller on 64-bit ARM. It is supported and
enabled via device tree on Tegra210 and Tegra186.
* tag 'tegra-for-4.15-arm64-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
arm64: defconfig: Enable Tegra PCI controller
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier into fixes
Pull "UniPhier ARM SoC fixes for v4.14" from Masahiro Yamada:
- Add necessary clock to EHCI node
* tag 'uniphier-fixes-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier:
arm64: dts: uniphier: add STDMAC clock to EHCI nodes
ARM: dts: uniphier: add STDMAC clock to EHCI nodes
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Add the external PHY interrupt on the nanopi-k2, odroid-c2, p200, p230
and q200
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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Add gpio interrupt controller to Amlogic GX family SoCs
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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select MESON_IRQ_GPIO in Kconfig for Amlogic's meson SoC family
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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Looking at the schematics, the USB Power Supply is shared between the
two USB interfaces,
If the usb0 fails to initialize, the second one won't have power.
Fixes: 5a0803bd5ae2 ("ARM64: dts: meson-gxbb-odroidc2: Enable USB Nodes")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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PSTATE.Q only exists for AArch32, which can be referred to using
COMPAT_PSR_Q_BIT. Remove PSR_Q_BIT, since the native bit doesn't exist
in the architecture
Tested-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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We can decode the PSTATE easily enough, so pretty-print it in register
dumps.
Tested-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Printing raw pointer values in backtraces has potential security
implications and are of questionable value anyway.
This patch follows x86's lead and removes the "Exception stack:" dump
from kernel backtraces, as well as converting PC/LR values to symbols
such as "sysrq_handle_crash+0x20/0x30".
Tested-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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When we take a fault we can't handle, we try to dump some relevant
information, but we're not consistent about doing so.
In do_mem_abort(), we log the full ESR, but don't dump a page table
walk. In __do_kernel_fault, we dump an attempted decoding of the ESR
(but not the ESR itself) along with a page table walk.
Let's try to make things more consistent by dumping the full ESR in
mem_abort_decode(), and having do_mem_abort dump a page table walk. The
existing dump of the ESR in do_mem_abort() is rendered redundant, and
removed.
Tested-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Julien Thierry <julien.thierry@arm.com>
Cc: Kristina Martsenko <kristina.martsenko@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Add an initial Device Tree for MeLE V9 Media Player.
Cc: meleservice@mele.cn
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Prepares for RTD1293 and RTD1296.
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Currently ASM_BUG() and its constituent macros define local
assembler labels 0, 1 and 2 internally, which carries a high risk
of clash with callers' labels and consequent mis-assembly.
This patch gives the labels a big random offset to minimise the
chance of such errors.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Software Step exception is missing after stepping a trapped instruction.
Ensure SPSR.SS gets set to 0 after emulating/skipping a trapped instruction
before doing ERET.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[will: replaced AARCH32_INSN_SIZE with 4]
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Literal values are being used to set single stepping in mdscr from assembly
code. There are already existing defines representing those values, use
those instead of the literal values.
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Now that the qrwlock can make use of WFE, remove our homebrewed rwlock
code in favour of the generic queued implementation.
Tested-by: Waiman Long <longman@redhat.com>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Adam Wallis <awallis@codeaurora.org>
Tested-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Jeremy.Linton@arm.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: boqun.feng@gmail.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: paulmck@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1507810851-306-5-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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__memcpy_{to,from}io fall back to byte-at-a-time copying if both the
source and destination pointers are not 8-byte aligned. Since one of the
pointers always points at normal memory, this is unnecessary and
detrimental to performance, so only do byte copying until we hit an 8-byte
boundary for the device pointer.
This change was motivated by performance issues in the pstore driver.
On a test platform, measuring probe time for pstore, console buffer
size of 1/4MB and pmsg of 1/2MB, was in the 90-107ms region. Change
managed to reduce it to 10-25ms, an improvement in boot time.
Cc: Kees Cook <keescook@chromium.org>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Merge in ARM PMU and perf updates for 4.15:
- Support for the Statistical Profiling Extension
- Support for Hisilicon's SoC PMU
Signed-off-by: Will Deacon <will.deacon@arm.com>
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This adds the definition for eFuse that is found on RK3368 SoCs with the
corresponding data cells.
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Add resets properties to all nodes that have reset lines.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Add mmc-pwrseq-emmc node to perform standard eMMC hardware reset
procedure.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Interrupt lines from on-board devices are connected to the GPIO
controller. Add GPIO hogging so that the corresponding GPIO line
is automatically requested.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Interrupt lines from on-board devices are connected to the GPIO
controller. Handle this correctly.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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The GPIO controller also acts as an interrupt controller and the
interrupt lines are connected to the AIDET block.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Fix warnings like follows:
Warning (node_name_chars_strict): Character '_' not recommended in ...
Commit 8654cb8d0371 ("dtc: update warning settings for new bus and
node/property name checks") says these checks are a bit subjective,
but Rob also says to not add new W=2 warnings.
The exising warnings should be fixed in order to catch new ones
easily.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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