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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator into arm/dt
Versatile DTS changes for the v5.9 kernel cycle, essentially
just a single patch fixing up the node names for schema.
* tag 'versatile-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
ARM: dts: arm-realview: Align L2 cache-controller nodename with dtschema
Link: https://lore.kernel.org/r/CACRpkdbkM9ZmuG2FnBmO7upcJfnqq2oSLDCFDXC5b3K+dtps9Q@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt
i.MX arm64 device tree update for 5.9:
- Update i.MX8M OCOTP device node name to match .yaml schema.
- Add ftm_alarm0 device support for layerscape SoCs.
- Add DSPI controller support for lx2160a device.
- A series from Peng Fan to add aliases for various devices on i.MX8
SoCs.
- Add Hantro G1/G2 VPU device support for imx8mq.
- Add more thermal zone support for ls1028a, ls1043a and ls1046a.
- Other small random changes.
* tag 'imx-dt64-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (26 commits)
arm64: dts: lx2160a-rdb: fix shunt-resistor value
arm64: dts: ls1028a-qds: Add DSPI flash nodes
arm64: dts: lx2160a: Increase configuration space size
arm64: dts: zii-ultra: update MDIO speed and preamble
arm64: dts: ls1043a: update USB nodes status to match board config
arm64: dts: imx8mn-evk: add pca9450 for i.mx8mn-evk board
arm64: dts: imx8mp: add ddr pmu device node
arm64: dts: ls1043a: add more thermal zone support
arm64: dts: ls1046a: add more thermal zone support
arm64: dts: layerscape: add ftm_alarm0 node
arm64: dts: ls1028a: Add ftm_alarm0 DT node
arm64: dts: lx2160a: add ftm_alarm0 DT node
arm64: dts: lx2160a: add DT node for all DSPI controller
arm64: dts: lx2160a: add dspi controller DT nodes
arm64: dts: imx8mp: Add fallback compatible to ocotp node
arm64: dts: imx8qxp: Add ethernet alias
arm64: dts: imx8qxp: add i2c aliases
arm64: dts: imx8qxp: add alias for lsio MU
arm64: dts: imx8m: add mu node
arm64: dts: imx8m: change ocotp node name on i.MX8M SoCs
...
Link: https://lore.kernel.org/r/20200720085536.24138-4-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt
i.MX device tree update for 5.9:
- New board support: Protonic PRTI6Q/WD2/VT7/RVT and MYiR MYS-6ULX SBC.
- Update IIM, OCOTP and SD/MMC device node name to match .yaml bindings.
- Make tempmon node as child of anatop node according to hardware
architecture.
- The vf610-zii device update: configure fiber port to 1000BaseX, add
switch watchdog, MDIO speed and preamble.
- A series from Fabio Estevam to update imx6qdl-sabresd and
imx6q-tbs2910 for using MDIO node and reset-assert-us.
- Align L2 cache-controller device node name with .yaml schema.
- Enable SATA support for imx6qp-sabreauto and imx6qp-sabresd board.
- A series of patches from Shengjiu Wang to enable various audio
support on i.MX6 devices.
- Add Gateworks System Controller support for imx6qdl-gw devices.
- Change default #pwm-cells setting to <3> in the SoC dtsi files.
- Other small random changes.
* tag 'imx-dt-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (43 commits)
ARM: dts: vf610-zii-ssmb-spu3: Add node for switch watchdog
ARM: dts: vf610-zii-ssmb-dtu: Add no-sdio/no-sd properties
ARM: dts: imx6q-tbs2910: Pass reset-assert-us
ARM: dts: imx6q-tbs2910: Add an mdio node
ARM: dts: imx6qdl-sabresd: Pass reset-assert-us
ARM: dts: imx6qdl-sabresd: Add an mdio node
ARM: dts: imx6qdl-gw: add Gateworks System Controller support
ARM: dts: imx6ull: add MYiR MYS-6ULX SBC
ARM: dts: vf610-zii-spb4: Add node for switch watchdog
ARM: dts: colibri-imx6: remove pinctrl-names orphan
ARM: dts: imx: default to #pwm-cells = <3> in the SoC dtsi files
ARM: dts: vf610-zii-scu4-aib: Configure fibre ports to 1000BaseX
ARM: dts: vf610-zii-dev-rev-c: Configure fiber port to 1000BaseX
ARM: dts: ZII: update MDIO speed and preamble
ARM: dts: vfxxx: Add node for CAAM
ARM: dts: imx6qp-sabresd: enable sata
ARM: dts: imx6qp-sabreauto: enable sata
ARM: dts: add Protonic RVT board
ARM: dts: add Protonic VT7 board
ARM: dts: add Protonic WD2 board
...
Link: https://lore.kernel.org/r/20200720085536.24138-3-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt
i.MX DT bindings for 5.9:
- Add compatible for Protonic PRTI6Q, WD2, RVT, VT7 boards.
- Add compatible for MYiR Tech iMX6ULL Evaluation Board
* tag 'imx-bindings-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
dt-bindings: arm: fsl: Add MYiR Tech boards
dt-bindings: arm: fsl: add different Protonic boards
Link: https://lore.kernel.org/r/20200720085536.24138-2-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/dt
SoCFPGA DTS updates for v5.9
- Populate clock entries for Agilex platform
- Add "reset-names" to SPI entries
- Add Maxim max1619 temperature sensor to Arria10 devkit
* tag 'socfpga_dts_update_for_v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
ARM: dts: socfpga: add the temperature sensor to the Arria10 devkit
arm: dts: socfpga: add reset-names to spi node
arm64: dts: agilex: add nand clocks
arm64: dts: agilex: populate clock dts entries for Intel SoCFPGA Agilex
Link: https://lore.kernel.org/r/20200719011804.15599-1-dinguyen@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 5.8, round 3:
- A couple of FEC2 phy-mode fixes on imx6sx-sabreauto and imx6sx-sdb
board.
- One fix on imx6qdl-icore pin muxing to get USB OTG_ID and SD card
detect work correctly.
* tag 'imx-fixes-5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6qdl-icore: Fix OTG_ID pin and sdcard detect
ARM: dts: imx6sx-sabreauto: Fix the phy-mode on fec2
ARM: dts: imx6sx-sdb: Fix the phy-mode on fec2
Link: https://lore.kernel.org/r/20200720040148.GA20462@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes
Two fixes for the Allwinner SoCs, one to relax the CMA allocation ranges that
were failing on older SoCs and one to fix Cedrus on the H6.
* tag 'sunxi-fixes-for-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm64: dts: allwinner: h6: Fix Cedrus IOMMU usage
ARM: dts sunxi: Relax a bit the CMA pool allocation range
Link: https://lore.kernel.org/r/e24f0608-6a4f-4163-b99e-a5f48e796184.lettre@localhost
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/defconfig
i.MX defconfig update for 5.9:
- Enable PCA9450 regulator driver in arm64 defconfig.
- Enable RV8803 RTC and FSL_SAI audio support in arm64 defconfig to make
it useful for Kontron sl28 boards.
- Enable i.MX8MM clock and pinctrl driver in imx_v6_v7_defconfig to get
AARCH32 mode kernel work on AARCH64 hardware.
* tag 'imx-defconfig-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx_v6_v7_defconfig: Support i.MX8MM
arm64: defconfig: enable RTC and audio support on Kontron sl28 boards
arm64: defconfig: add pca9450 pmic driver
Link: https://lore.kernel.org/r/20200720085536.24138-5-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/defconfig
Qualcomm ARM64 defconfig updates for v5.9
Enable the Qualcomm RPM power-domain, RTC and IPCC drivers, the SDM845
video clock controller driver and the SM8250 TLMM pinctrl driver.
* tag 'qcom-arm64-defconfig-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
arm64: defconfig: Enable Qualcomm IPCC driver
arm64: defconfig: Enable Qualcomm SM8250 pinctrl driver
arm64: defconfig: Add CONFIG_QCOM_RPMPD
arm64: defconfig: Enable the PM8xxx RTC driver
arm64: defconfig: Enable SDM845 video clock controller
Link: https://lore.kernel.org/r/20200721044848.3429874-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This patch adds support to enable PCIe for RockPI N10.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Link: https://lore.kernel.org/r/20200720110230.367985-3-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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This patch adds support to enable HDMI out for
N10 and N8 combinations SBCs.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Suniel Mahesh <sunil@amarulasolutions.com>
Link: https://lore.kernel.org/r/20200720110230.367985-2-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Radxa dalang carrier board has 2x USB 2.0 and 1x USB 3.0
ports.
This patch adds support to enable all these USB ports for
N10 and N8 combinations SBCs.
Note that the USB 3.0 port on RockPI N8 combination works
as USB 2.0 OTG since it is driven from RK3288.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Link: https://lore.kernel.org/r/20200720110230.367985-1-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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rk3288 and rk3288w have a usb host0 ohci controller.
Although rk3288 ohci doesn't actually work on hardware, but
rk3288w ohci can work well.
So add usb host0 ohci node in rk3288 dtsi and boards
can then enable it if supported.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Cc: William Wu <william.wu@rock-chips.com>
Link: https://lore.kernel.org/r/20200720105846.367776-1-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media into master
Pull media fixes from Mauro Carvalho Chehab:
"A series of fixes for the upcoming atomisp driver. They solve issues
when probing atomisp on devices with multiple cameras and get rid of
warnings when built with W=1.
The diffstat is a bit long, as this driver has several abstractions.
The patches that solved the issues with W=1 had to get rid of some
duplicated code (there used to have 2 versions of the same code, one
for ISP2401 and another one for ISP2400).
As this driver is not in 5.7, such changes won't cause regressions"
* tag 'media/v5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (38 commits)
Revert "media: atomisp: keep the ISP powered on when setting it"
media: atomisp: fix mask and shift operation on ISPSSPM0
media: atomisp: move system_local consts into a C file
media: atomisp: get rid of version-specific system_local.h
media: atomisp: move global stuff into a common header
media: atomisp: remove non-used 32-bits consts at system_local
media: atomisp: get rid of some unused static vars
media: atomisp: Fix error code in ov5693_probe()
media: atomisp: Replace trace_printk by pr_info
media: atomisp: Fix __func__ style warnings
media: atomisp: fix help message for ISP2401 selection
media: atomisp: i2c: atomisp-ov2680.c: fixed a brace coding style issue.
media: atomisp: make const arrays static, makes object smaller
media: atomisp: Clean up non-existing folders from Makefile
media: atomisp: Get rid of ACPI specifics in gmin_subdev_add()
media: atomisp: Provide Gmin subdev as parameter to gmin_subdev_add()
media: atomisp: Use temporary variable for device in gmin_subdev_add()
media: atomisp: Refactor PMIC detection to a separate function
media: atomisp: Deduplicate return ret in gmin_i2c_write()
media: atomisp: Make pointer to PMIC client global
...
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git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat into master
Pull exfat fixes from Namjae Jeon:
- fix overflow issue at sector calculation
- fix wrong hint_stat initialization
- fix wrong size update of stream entry
- fix endianness of upname in name_hash computation
* tag 'exfat-for-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: fix name_hash computation on big endian systems
exfat: fix wrong size update of stream entry by typo
exfat: fix wrong hint_stat initialization in exfat_find_dir_entry()
exfat: fix overflow issue in exfat_cluster_to_sector()
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As syzkaller detected, wlan-ng driver does not do sanity check of
endpoints in prism2sta_probe_usb(), add check for xfer direction and type
Reported-and-tested-by: syzbot+c2a1fa67c02faa0de723@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?extid=c2a1fa67c02faa0de723
Signed-off-by: Rustam Kovhaev <rkovhaev@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200722161052.999754-1-rkovhaev@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit ec411e02b7a2e785a4ed9ed283207cd14f48699d.
Patrick reported that this commit broke hybrid graphics on a ThinkPad X1
Extreme 2nd with Intel UHD Graphics 630 and NVIDIA GeForce GTX 1650 Mobile:
nouveau 0000:01:00.0: fifo: PBDMA0: 01000000 [] ch 0 [00ff992000 DRM] subc 0 mthd 0008 data 00000000
Karol reported that this commit broke Nouveau firmware loading on a Lenovo
P1G2 with Intel UHD Graphics 630 and NVIDIA TU117GLM [Quadro T1000 Mobile]:
nouveau 0000:01:00.0: acr: AHESASC binary failed
In both cases, reverting ec411e02b7a2 solved the problem. Unfortunately,
this revert will reintroduce the "Thunderbolt bridges take long time to
resume from D3cold" problem:
https://bugzilla.kernel.org/show_bug.cgi?id=206837
Link: https://lore.kernel.org/r/CAErSpo5sTeK_my1dEhWp7aHD0xOp87+oHYWkTjbL7ALgDbXo-Q@mail.gmail.com
Link: https://lore.kernel.org/r/CACO55tsAEa5GXw5oeJPG=mcn+qxNvspXreJYWDJGZBy5v82JDA@mail.gmail.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=208597
Reported-by: Patrick Volkerding <volkerdi@gmail.com>
Reported-by: Karol Herbst <kherbst@redhat.com>
Fixes: ec411e02b7a2 ("PCI/PM: Assume ports without DLL Link Active train links in 100 ms")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The "virtio_mmio.device=" command line argument allows a user to specify
the size, address, and IRQ of a virtio device. Previously the only
requirement for the IRQ was that it be an unsigned integer.
Zero is an unsigned integer but an invalid IRQ number, and after
a85a6c86c25be ("driver core: platform: Clarify that IRQ 0 is invalid"),
attempts to use IRQ 0 cause warnings.
If the user specifies IRQ 0, return failure instead of registering a device
with IRQ 0.
Fixes: a85a6c86c25be ("driver core: platform: Clarify that IRQ 0 is invalid")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
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The device may be torn down, but the domain should still be valid. Lets
use that as the tlb flush ops cookie.
Fixes a problem reported in [1]
[1] https://lkml.org/lkml/2020/7/20/104
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: 09b5dfff9ad6 ("iommu/qcom: Use accessor functions for iommu private data")
Link: https://lore.kernel.org/r/20200720155217.274994-1-robdclark@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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It doesn't make sense to add zero shifted by 15. It's still zero.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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The value returned by read_tod_clock() will overflow on September 17th 2042.
To avoid that system time jumps back select CLOCKSOURCE_VALIDATE_LAST_CYCLE
which enables a sanity check in order to prevent negative "delta" values.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Make use of CLOCKSOURCE_MASK instead of open-coding it.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Acked-By: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200719200623.61524-1-grandmaster@al2klimov.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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Activity Monitor Event Type Registers are named as AMEVTYPER{0,1}<n>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20200721091259.102756-1-vladimir.murzin@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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In pfkey_dump() dplen and splen can both be specified to access the
xfrm_address_t structure out of bounds in__xfrm_state_filter_match()
when it calls addr_match() with the indexes. Return EINVAL if either
are out of range.
Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: kernel-team@android.com
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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My colleague Codrin Ciubotariu, now, maintains this driver internally.
Then I handover the mainline maintenance to him.
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Drop the doubled word "be" in a comment.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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There are few issues on Zynq SOC observed in the stress tests causing
timeout errors. Even though all the data is received, timeout error
is thrown. This is due to an IP bug in which the COMP bit in ISR is
not set at end of transfer and completion interrupt is not generated.
This bug is seen on Zynq platforms when the following condition occurs:
Master read & HOLD bit set & Transfer size register reaches '0'.
One workaround is to clear the HOLD bit before the transfer size
register reaches '0'. The current implementation checks for this at
the start of the loop and also only for less than FIFO DEPTH case
(ignoring the equal to case).
So clear the HOLD bit when the data yet to receive is less than or
equal to the FIFO DEPTH. This avoids the IP bug condition.
Signed-off-by: Raviteja Narayanam <raviteja.narayanam@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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This reverts commit d358def706880defa4c9e87381c5bf086a97d5f9.
There are two issues with "i2c: cadence: Fix the hold bit setting" commit.
1. In case of combined message request from user space, when the HOLD
bit is cleared in cdns_i2c_mrecv function, a STOP condition is sent
on the bus even before the last message is started. This is because when
the HOLD bit is cleared, the FIFOS are empty and there is no pending
transfer. The STOP condition should occur only after the last message
is completed.
2. The code added by the commit is redundant. Driver is handling the
setting/clearing of HOLD bit in right way before the commit.
The setting of HOLD bit based on 'bus_hold_flag' is taken care in
cdns_i2c_master_xfer function even before cdns_i2c_msend/cdns_i2c_recv
functions.
The clearing of HOLD bit is taken care at the end of cdns_i2c_msend and
cdns_i2c_recv functions based on bus_hold_flag and byte count.
Since clearing of HOLD bit is done after the slave address is written to
the register (writing to address register triggers the message transfer),
it is ensured that STOP condition occurs at the right time after
completion of the pending transfer (last message).
Signed-off-by: Raviteja Narayanam <raviteja.narayanam@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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As expected, this requires the same quirk as the SSL2+ in order for the
clock to sync. This was suggested by, and tested on an SSL2, by Dmitry.
Suggested-by: Dmitry <dpavlushko@gmail.com>
Signed-off-by: Laurence Tratt <laurie@tratt.net>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200621075005.52mjjfc6dtdjnr3h@overdrive.tratt.net
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The word "Zhoaxin" is incorrect and the right one is "Zhaoxin".
Signed-off-by: Hu Haowen <xianfengting221@163.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200719105007.57649-1-xianfengting221@163.com
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Drop the repeated word "the" in a comment.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200719003027.20798-1-rdunlap@infradead.org
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This option now correctly depends on CPU_FREQ_THERMAL, so select it on the
architectures that implement the required functions,
arch_set_thermal_pressure() and arch_get_thermal_pressure().
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lkml.kernel.org/r/20200712165917.9168-4-valentin.schneider@arm.com
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As Russell pointed out [1], this option is severely lacking in the
documentation department, and figuring out if one has the required
dependencies to benefit from turning it on is not straightforward.
Make it non user-visible, and add a bit of help to it. While at it, make it
depend on CPU_FREQ_THERMAL.
[1]: https://lkml.kernel.org/r/20200603173150.GB1551@shell.armlinux.org.uk
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200712165917.9168-3-valentin.schneider@arm.com
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The following commit:
14533a16c46d ("thermal/cpu-cooling, sched/core: Move the arch_set_thermal_pressure() API to generic scheduler code")
moved the definition of arch_set_thermal_pressure() to sched/core.c, but
kept its declaration in linux/arch_topology.h. When building e.g. an x86
kernel with CONFIG_SCHED_THERMAL_PRESSURE=y, cpufreq_cooling.c ends up
getting the declaration of arch_set_thermal_pressure() from
include/linux/arch_topology.h, which is somewhat awkward.
On top of this, sched/core.c unconditionally defines
o The thermal_pressure percpu variable
o arch_set_thermal_pressure()
while arch_scale_thermal_pressure() does nothing unless redefined by the
architecture.
arch_*() functions are meant to be defined by architectures, so revert the
aforementioned commit and re-implement it in a way that keeps
arch_set_thermal_pressure() architecture-definable, and doesn't define the
thermal pressure percpu variable for kernels that don't need
it (CONFIG_SCHED_THERMAL_PRESSURE=n).
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200712165917.9168-2-valentin.schneider@arm.com
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Change "It it" to "It is".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/25305c1d-4ee8-e091-d20f-e700ddad49fd@infradead.org
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Drop doubled words "to" and "that".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/927ea8d8-3f6c-9b65-4c2b-63ab4bd59ef1@infradead.org
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The get_option() maybe return 0, it means that the nr_cpus is
not initialized. Then we will use the stale nr_cpus to initialize
the nr_cpu_ids. So fix it.
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200716070457.53255-1-songmuchun@bytedance.com
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idle_cpus are equal
In slow path, when selecting idlest group, if both groups have type
group_has_spare, only idle_cpus count gets compared.
As a result, if multiple tasks are created in a tight loop,
and go back to sleep immediately
(while waiting for all tasks to be created),
they may be scheduled on the same core, because CPU is back to idle
when the new fork happen.
For example:
sudo perf record -e sched:sched_wakeup_new -- \
sysbench threads --threads=4 run
...
total number of events: 61582
...
sudo perf script
sysbench 129378 [006] 74586.633466: sched:sched_wakeup_new:
sysbench:129380 [120] success=1 CPU:007
sysbench 129378 [006] 74586.634718: sched:sched_wakeup_new:
sysbench:129381 [120] success=1 CPU:007
sysbench 129378 [006] 74586.635957: sched:sched_wakeup_new:
sysbench:129382 [120] success=1 CPU:007
sysbench 129378 [006] 74586.637183: sched:sched_wakeup_new:
sysbench:129383 [120] success=1 CPU:007
This may have negative impact on performance for workloads with frequent
creation of multiple threads.
In this patch we are using group_util to select idlest group if both groups
have equal number of idle_cpus. Comparing the number of idle cpu is
not enough in this case, because the newly forked thread sleeps
immediately and before we select the cpu for the next one.
This is shown in the trace where the same CPU7 is selected for
all wakeup_new events.
That's why, looking at utilization when there is the same number of
CPU is a good way to see where the previous task was placed. Using
nr_running doesn't solve the problem because the newly forked task is not
running and the cpu would not have been idle in this case and an idle
CPU would have been selected instead.
With this patch newly created tasks would be better distributed.
With this patch:
sudo perf record -e sched:sched_wakeup_new -- \
sysbench threads --threads=4 run
...
total number of events: 74401
...
sudo perf script
sysbench 129455 [006] 75232.853257: sched:sched_wakeup_new:
sysbench:129457 [120] success=1 CPU:008
sysbench 129455 [006] 75232.854489: sched:sched_wakeup_new:
sysbench:129458 [120] success=1 CPU:009
sysbench 129455 [006] 75232.855732: sched:sched_wakeup_new:
sysbench:129459 [120] success=1 CPU:010
sysbench 129455 [006] 75232.856980: sched:sched_wakeup_new:
sysbench:129460 [120] success=1 CPU:011
We tested this patch with following benchmarks:
master: 'commit b3a9e3b9622a ("Linux 5.8-rc1")'
100 iterations of: perf bench -f simple futex wake -s -t 128 -w 1
Lower result is better
| | BASELINE | +PATCH | DELTA (%) |
|---------|------------|----------|-------------|
| mean | 0.33 | 0.313 | +5.152 |
| std (%) | 10.433 | 7.563 | |
100 iterations of: sysbench threads --threads=8 run
Higher result is better
| | BASELINE | +PATCH | DELTA (%) |
|---------|------------|----------|-------------|
| mean | 5235.02 | 5863.73 | +12.01 |
| std (%) | 8.166 | 10.265 | |
100 iterations of: sysbench mutex --mutex-num=1 --threads=8 run
Lower result is better
| | BASELINE | +PATCH | DELTA (%) |
|---------|------------|----------|-------------|
| mean | 0.413 | 0.404 | +2.179 |
| std (%) | 3.791 | 1.816 | |
Signed-off-by: Peter Puhov <peter.puhov@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200714125941.4174-1-peter.puhov@linaro.org
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The "ticks" parameter was added in commit 0f004f5a696a ("sched: Cure more
NO_HZ load average woes") since calc_global_nohz() was called and needed
the "ticks" argument.
But in commit c308b56b5398 ("sched: Fix nohz load accounting -- again!")
it became unused as the function calc_global_nohz() dropped using "ticks".
Fixes: c308b56b5398 ("sched: Fix nohz load accounting -- again!")
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1593628458-32290-1-git-send-email-paul.gortmaker@windriver.com
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Dave hit the problem fixed by commit:
b6e13e85829f ("sched/core: Fix ttwu() race")
and failed to understand much of the code involved. Per his request a
few comments to (hopefully) clarify things.
Requested-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200702125211.GQ4800@hirez.programming.kicks-ass.net
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There is apparently one site that violates the rule that only current
and ttwu() will modify task->state, namely ptrace_{,un}freeze_traced()
will change task->state for a remote task.
Oleg explains:
"TASK_TRACED/TASK_STOPPED was always protected by siglock. In
particular, ttwu(__TASK_TRACED) must be always called with siglock
held. That is why ptrace_freeze_traced() assumes it can safely do
s/TASK_TRACED/__TASK_TRACED/ under spin_lock(siglock)."
This breaks the ordering scheme introduced by commit:
dbfb089d360b ("sched: Fix loadavg accounting race")
Specifically, the reload not matching no longer implies we don't have
to block.
Simply things by noting that what we need is a LOAD->STORE ordering
and this can be provided by a control dependency.
So replace:
prev_state = prev->state;
raw_spin_lock(&rq->lock);
smp_mb__after_spinlock(); /* SMP-MB */
if (... && prev_state && prev_state == prev->state)
deactivate_task();
with:
prev_state = prev->state;
if (... && prev_state) /* CTRL-DEP */
deactivate_task();
Since that already implies the 'prev->state' load must be complete
before allowing the 'prev->on_rq = 0' store to become visible.
Fixes: dbfb089d360b ("sched: Fix loadavg accounting race")
Reported-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Tested-by: Christian Brauner <christian.brauner@ubuntu.com>
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On x86-32 the idt_table with 256 entries needs only 2048 bytes. It is
page-aligned, but the end of the .bss..page_aligned section is not
guaranteed to be page-aligned.
As a result, objects from other .bss sections may end up on the same 4k
page as the idt_table, and will accidentially get mapped read-only during
boot, causing unexpected page-faults when the kernel writes to them.
This could be worked around by making the objects in the page aligned
sections page sized, but that's wrong.
Explicit sections which store only page aligned objects have an implicit
guarantee that the object is alone in the page in which it is placed. That
works for all objects except the last one. That's inconsistent.
Enforcing page sized objects for these sections would wreckage memory
sanitizers, because the object becomes artificially larger than it should
be and out of bound access becomes legit.
Align the end of the .bss..page_aligned and .data..page_aligned section on
page-size so all objects places in these sections are guaranteed to have
their own page.
[ tglx: Amended changelog ]
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200721093448.10417-1-joro@8bytes.org
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Convert the qcom,smd-rpm.txt document to YAML schema
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kathiravan T <kathirav@codeaurora.org>
Link: https://lore.kernel.org/r/1595225543-12127-4-git-send-email-kathirav@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This patch adds a compatible for the rpm on the Qualcomm IPQ6018 platform.
Signed-off-by: Kathiravan T <kathirav@codeaurora.org>
Link: https://lore.kernel.org/r/1595225543-12127-3-git-send-email-kathirav@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This patch adds the dt-binding for the rpm on the Qualcomm IPQ6018
platform.
Signed-off-by: Kathiravan T <kathirav@codeaurora.org>
Link: https://lore.kernel.org/r/1595225543-12127-2-git-send-email-kathirav@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Adding maximum speed property for DWC3 USB node which can be used
for setting interconnect bandwidth.
Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/1595317489-18432-3-git-send-email-sanm@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Add "arm,coresight-loses-context-with-cpu" property to coresight
ETM nodes to avoid failure of trace session because of losing
context on entering deep idle states.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/20200721071343.2898-1-saiprakash.ranjan@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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