Pull "Renesas ARM64 Based SoC Defconfig Updates for v4.14" from Simon Horman:
* compile ak4613 and renesas sound as modules
This is intended to reduce the size of a kernel image compiled
using the defconfig. This is timely as it brings the kernel image
back below the size that can be booted in my environment, a limit
it crept over in v4.13-rc1.
* tag 'renesas-arm64-defconfig-for-v4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
arm64: defconfig: compile ak4613 and renesas sound as modules
commit cee22a1505 ("workqueues: Introduce new flag WQ_POWER_EFFICIENT
for power oriented workqueues") introduced the concept of power
efficient workqueues (4 years back), but it was never enabled in
upstream kernel configs.
Power efficient workqueues are simply marked as "unbound," so that jobs
queued to them can run on any CPU in the system. It leaves the target
CPU selection to the scheduler, which is the best place for such
decision making. This improves power efficiency for workqueues which are
otherwise pinned to a CPU.
Enable it for ARM64 platforms as ARM platforms were the main target for
the introduction of power efficient workqueues.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This patch enables these configs:
+CONFIG_SERIAL_DEV_BUS=y
+CONFIG_SERIAL_DEV_CTRL_TTYPORT=y
As example, a bluetooth device connected to UART port can be supported by
this.
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Enable HiSilicon SAS controller based on PCI device,
which is included in hip08 SoC.
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
The Allwinner A64 SoC is paired with the X-Powers AXP803 PMIC over the
Reduced Serial Bus (RSB). The regulators of this PMIC supply all power
rails of the SoC and many external peripherals.
Enable the driver for the regulators of this PMIC.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
[wens@csie.org: refined commit message]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
The Allwinner A64 SoC is paired with the X-Powers AXP803 PMIC over the
Reduced Serial Bus (RSB).
Enable the driver for this PMIC.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
[wens@csie.org: Refined commit message]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tests showed, that under certain conditions, the summary number of jiffies
spent on softirq/idle, which are counted by system statistics can be even
below 10% of expected value, resulting in false load presentation.
The issue was observed on the quad-core Marvell Armada 8k SoC, whose two
10G ports were bound into L2 bridge. Load was controlled by bidirectional
UDP traffic, produced by a packet generator. Under such condition,
the dominant load is softirq. With 100% single CPU occupation or without
any activity (all CPUs 100% idle), total number of jiffies is 10000 (2500
per each core) in 10s interval. Also with other kind of load this was
true.
However below a saturation threshold it was observed, that with CPU which
was occupied almost by softirqs only, the statistic were awkward. See
the mpstat output:
CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle
all 0.00 0.00 0.13 0.00 0.00 0.55 0.00 0.00 0.00 99.32
0 0.00 0.00 0.00 0.00 0.00 23.08 0.00 0.00 0.00 76.92
1 0.00 0.00 0.40 0.00 0.00 0.00 0.00 0.00 0.00 99.60
2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00
Above would mean basically no total load, debug CPU0 occupied in 25%.
Raw statistics, printed every 10s from /proc/stat unveiled a root
cause - summary idle/softirq jiffies on loaded CPU were below 200,
i.e. over 90% samples lost. All problems were gone after enabling
fine granulity IRQ time accounting.
This patch fixes possible wrong statistics processing by enabling
CONFIG_IRQ_TIME_ACCOUNTING for arm64 platfroms, which is by
default done on other architectures, e.g. x86 and arm. Tests
showed no noticeable performance penalty, nor stability impact.
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
The hardware spinlock drivers now depend on HWSPINLOCK (instead of
selecting it), so we need to explicitly enable it after commit
35fc8a07d7 ("Make HWSPINLOCK a menuconfig to ease disabling")
Without HWSPINLOCK, various drivers are left with unsatisfied
dependencies and Qcom boards using shared memory based communication
to request regulators are failing to boot and mount rootfs.
Fix this by explicitly enabling HWSPINLOCK in defconfig.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Compile the renesas sound and ak4613 drivers as modules to reduce the ARM64
kernel size. These modules are currently only used by Renesas platforms so
there should little risk of negative impact of this change on other users.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[simon: consolidated two patches into one]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull ARM SoC 64-bit updates from Arnd Bergmann:
"Changes to platform code for 64-bit ARM platforms.
Andreas Färber adds two new platforms with initial code: Realtek
RTD1295 and Action Semi S900. Both are fairly similar chips, used
mainly in set-top-boxes, but with other possible applications, and
additional members in the respective product families that could be
added in the future. The code here is fairly minimal, as all the
interesting parts are in device drivers and dts files.
The Broadcom Vulcan platform gets dropped, as no products ever became
available, and Cavium integrated the platform under a new name.
Among some other defconfig changes, Timur Tabi enables a number of
options that are typically required for server platforms"
* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: defconfig: remove duplicate entry
arm64: defconfig: enable Qualcomm Technologies EMAC and some PHY drivers
arm64: defconfig: enable QCOM_L2_PMU and QCOM_L3_PMU
arm64: defconfig: enable EDAC options
arm64: defconfig: enable APEI and GHES features
arm64: defconfig: enable support for PCIe hotplug
arm64: defconfig: enable EFI_CAPSULE_LOADER
arm64: defconfig: enable BLK_DEV_NVME
arm64: defconfig: enable ACPI_CPPC_CPUFREQ
arm64: marvell: enable ICU and GICP drivers
arm64: marvell: enable the Armada 7K/8K pinctrl driver
arm64: Prepare Actions Semi S900
ARM64: defconfig: enable meson SPICC as module
ARM64: defconfig: enable IR core, decoders and Meson IR device
arm64: defconfig: enable Simple Sound Card support
arm64: defconfig: Enable ARCH_BRCMSTB
arm64: defconfig: drop ARCH_VULCAN
arm64: disable Broadcom Vulcan platform
MAINTAINERS: Add Realtek section
ARM64: Prepare Realtek RTD1295
The EMAC is present on Qualcomm Technologies' server and some mobile
chips, and is used as the primary Ethernet interface.
Systems that have these SOCs typically have an Atheros 803x or
Marvell 88e1111 PHY in them, so enable those drivers too.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Now that the drivers are available, enable support for L2 and L3
performance monitoring Qualcomm Datacenter Technologies Centriq SoCs.
These PMU drivers provide support for performance optimization.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Enable EDAC (Error Detection and Correction) support for ARM64 server
systems that feature it, so that user space applications can be
notified of memory errors.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ARM64 server platforms can support ACPI Platform Error Interface (APEI)
and Generic Hardware Error Source (GHES) features, so enable them.
Platforms which support the firmware-first RAS error reporting model
require APEI and GHES functionality for the OS to receive and report
error records provided by the platform.
PCIe AER functionality is required for PCIe AER errors to be properly
reported and recovered from.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Some ARM64 server systems support PCIe hotplug, so enable the options
for that.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
CONFIG_EFI_CAPSULE_LOADER allows the user to update the EFI firmware,
which is useful on ARM64 server platforms.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
NVME is non-volatile storage media attached via PCIe. NVME devices
typically have much higher potential throughput than other block
devices, like SATA, NVME is a must-have requirement for ARM64 based
servers.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The CPPC CPUFreq driver is used on many ACPI-based ARM64 server systems.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Amlogic arm64 defconfig changes for v4.13
- enable meson SPICC as module
- enable IR core, decoders and Meson IR device
* tag 'amlogic-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
ARM64: defconfig: enable meson SPICC as module
ARM64: defconfig: enable IR core, decoders and Meson IR device
Signed-off-by: Olof Johansson <olof@lixom.net>
This pull request contains ARM64 defconfig changes for 4.13, please pull the
following:
- Florian enables ARCH_BRCMSTB in the arm64 defconfig to get more build coverage
* tag 'arm-soc/for-4.13/defconfig-arm64' of http://github.com/Broadcom/stblinux:
arm64: defconfig: Enable ARCH_BRCMSTB
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch enable the SPI Communications Controller driver as module for the
Amlogic platform.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This patch enables the MEDIA Infrared RC Decoders and Meson Infrared
decoder for ARM64 defconfig.
These drivers are selected as modules by default.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[khilman: make RC_CORE modular too]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
ARCH_BRCMSTB was one of the few platforms that were not enabled by
default, since we are now adding more and more drivers relevant to that
platform get some proper build coverage.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
ARCH_VULCAN (Broadcom Vulcan) has been discontinued and all its
dependencies have been moved to ARCH_THUNDER2. It can be dropped
from defconfig now.
Signed-off-by: Jayachandran C <jnair@caviumnetworks.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Enable some very core config options used on 64bit Rockchip socs.
As built-in driver enable the Rockchip spi driver as well as the
cros-ec-spi and cros-ec keyboard driver, as this may be helpful
in case an initrd does not work as expected and drops the user
into a shell. Another built-in is the fan53555 regulator driver,
as it and its register-compatible cousins Silergy syr827 and syr828
are often used on Rockchip socs as cpu-supply next to regular pmic.
The rest can be enabled as modules and contains the pcie host
controller and its phy, the sucessive approximation adc (saradc)
that gets often used for additional buttons on Rockchip boards
as well as the adc-keys Keyboard driver for these keys.
The cros-ec-pwm also can be a module, as it is normally only used to
drive display backlights as well as the Rockchip thermal controller
that allows to read the cpu and gpu temperatures and affect frequency
scaling if necessary.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
Enable Qualcomm drivers needed to boot Dragonboard 410c with HDMI. This
enables support for clocks, regulators, and USB PHY.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
[Olof: Turned off _RPM configs per follow-up email]
Signed-off-by: Olof Johansson <olof@lixom.net>
Sync the defconfig with savedefconfig as config options change/move over
time.
Generated with the following commands:
make defconfig
make savedefconfig
cp defconfig arch/arm64/configs/defconfig
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull ARM SoC 64-bit changes from Olof Johansson:
"Changes to platform code for 64-bit ARM platforms.
Most of these are small changes to the one defconfig we use on arm64
(no per-platform configs there), to enable new drivers.
There are also a few other changes. Broadcom sold off their 'Vulcan'
design to Cavium, where it is now called ThunderX2. While we normally
don't rename stuff based on marketing's whims, it seemed appropriate
to bring in renames on a few things such as MAINTAINERS, etc"
* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: sunxi: always enable reset controller
arm64: defconfig: enable the Safexcel crypto engine as a module
arm64: configs: enable SDHCI driver for Xenon
MAINTAINERS: Broadcom Vulcan is now Cavium ThunderX2
arm64: defconfig: add Allwinner USB PHY
arm64: defconfig: enable MVPP2
arm64: defconfig: Enable video, DRM and LPASS drivers for Exynos5433 and Exynos7
arm64: exynos: Enable Exynos PMU and PM domains drivers
arm64: only select PINCTRL for Allwinner platforms
arm64: set CONFIG_MMC_BCM2835=y in defconfig
arm64: defconfig: enable I2C_PXA
arm64: defconfig: enable MVNETA
ARM64: defconfig: enable the leds-pwm driver and default-on trigger
arm64: defconfig: Enable SH Mobile I2C controller
mvebu defconfig64 for 4.12 (part 2)
Select two new drivers for ARM64 mvebu SoCs:
- Xenon SDHCI controller on Armada 37xx and Armada 7K/8K
- Safexcel crypto engine on Armada 7K/8K
* tag 'mvebu-defconfig64-4.12-2' of git://git.infradead.org/linux-mvebu:
arm64: defconfig: enable the Safexcel crypto engine as a module
arm64: configs: enable SDHCI driver for Xenon
Signed-off-by: Olof Johansson <olof@lixom.net>
Samsung ARM64 update for v4.12:
1. Exynos power management drivers support now ARMv8 SoC - Exynos5433 - so
select them in ARCH_EXYNOS.
2. Enable few Exynos drivers for supported ARMv8 SoCs.
* tag 'samsung-soc64-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
arm64: defconfig: Enable video, DRM and LPASS drivers for Exynos5433 and Exynos7
arm64: exynos: Enable Exynos PMU and PM domains drivers
Signed-off-by: Olof Johansson <olof@lixom.net>
Allwinner arm64 config changes for 4.12
Two patches to change our Kconfig option and add new options in the
defconfig.
* tag 'sunxi-config64-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm64: defconfig: add Allwinner USB PHY
arm64: only select PINCTRL for Allwinner platforms
Signed-off-by: Olof Johansson <olof@lixom.net>
The Safexcel EIP197 cryptographic engine is used on some Marvell SoCs,
such as Armada 7040 and Armada 8040. Enable this driver as a module in
the ARM64 defconfig.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
This patch enables the driver for the SDHCI controller found on the
Marvell Armada 3700 and 7K/8K ARM64 SoCs.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Pull "Broadcom defconfig-arm64 changes for 4.12" from Florian Fainelli:
This pull request contains Broadcom ARM64-based SoCs defconfig updates for
4.12, please pull the following:
- Gerd enables the BCM2835 MMC driver which yields better performance than the
default one (iProc)
* tag 'arm-soc/for-4.12/defconfig-arm64' of http://github.com/Broadcom/stblinux:
arm64: set CONFIG_MMC_BCM2835=y in defconfig
Pull "mvebu defconfig64 for 4.12 (part 1)" from Gregory CLEMENT:
Update arm64 defconfig by adding MVPP2 for Marvell Armada 7K/8K and
MVNETA and I2C_PXA for Armada 37xx.
* tag 'mvebu-defconfig64-4.12-1' of git://git.infradead.org/linux-mvebu:
arm64: defconfig: enable MVPP2
arm64: defconfig: enable I2C_PXA
arm64: defconfig: enable MVNETA
Pull "Amlogic: defconfig changes for v4.12" from Kevin Hilman:
- enable PWM LEDs and LEDs default-on trigger
* tag 'amlogic-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
ARM64: defconfig: enable the leds-pwm driver and default-on trigger
The arm64 defconfig covers the Allwinner A64 SoC boards quite well,
but USB support is not enabled.
Add the PHY config symbol to allow defconfig kernels to use USB.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Enable drivers specific to Exynos5433 and Exynos7:
1. MFD Low Power Audio SubSystem (LPASS),
2. DRM drivers (DECON display, outputs),
3. Drivers for video-related sub-blocks (JPEG, Multi Format Codec,
GScaler).
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
