These options are selectable when some of the kernel debug options like
KERNEL_SOFTLOCKUP_DETECTOR are selected.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The default value for CONFIG_RCU_CPU_STALL_TIMEOUT was changed from 60
seconds to 21 seconds in 2012 in the upstream kernel. Some targets
already use 21 seconds.
This patch changes the default value in the generic configuration to 21
seconds and removes the target specific configuration options.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Rui Salvaterra <rsalvaterra@gmail.com>
CONFIG_RCU_{NEED_SEGCBLIST,STALL_COMMON} are set basically everywhere. Move them
to the generic kconfigs. And resort the generic kconfigs while at it.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Based on the existing documentation [1][2], I dare anyone to demonstrate that
we need to fine-tune these RCU parameters. The (performance) breakage potential
for doing so is immense, so let's just please put down this loaded footgun.
Disable CONFIG_RCU_EXPERT and its dependent symbols. Additionally, remove the
CONFIG_RCU_EXPERT symbol from the target kconfigs which contain it.
[1] https://www.kernel.org/doc/Documentation/RCU/Design/Data-Structures/Data-Structures.html
[2] https://lwn.net/Articles/777214/
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Run `make kernel_oldconfig CONFIG_TARGET=subtarget`
This mostly aims at getting rid of redundant/unneeded symbols.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Some targets select HZ=100, others HZ=250. There's no reason to select a higher
timer frequency (and 100 Hz are available in every architecture), so change all
targets to 100 Hz.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
For the targets which enable ubifs, these symbols are already part of the
generic kconfigs. Drop them from the target kconfigs.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Respect the generic kernel config setting, which is "enabled" tree-wide, as
previously done for sunxi.
Ref: 247ef4d98b ("sunxi: enable CONFIG_BPF_SYSCALL and CONFIG_EMBEDDED")
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
The option was introduced in upstream linux commit a6484045 ("[TCP]: Do
not present confusing congestion control options by default.").
The option is set to y in generic config and to the moment does not
incur additional size increment. Make it y for all so that packages
such as kmod-tcp-bbr do not have to set it on every occasion
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
At this moment layerscape images are ext4 only. It causes problem with
save changes durring sysupgrade and make "firstboot" and failsafe mode
useless.
This patch changes sd-card images to squashfs + f2fs combined images.
To make place, for saving config, kernel space ar now ext4 partition
with fit kernel.
This method of image generation is similar to rest of OpenWrt sd-card
targets.
Reviewed-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
[reword README, reword DEVICE_COMPAT_MESSAGE, keep original indent]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The vDSO is used to accelerate some syscalls. It should work fine wherever it's
available, so enable it globally for all targets.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Remove support for kernel 4.14, and NXP Layerscape SDK
had not supported kernel 4.14 since LSDK-20.04 either.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
The Freescale IFC NAND/NOR controllers options were disabled
in default in previous running make kernel_oldconfig.
So re-enable them.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
All patches of LSDK 19.03 were ported to Openwrt kernel.
We still used an all-in-one patch for each IP/feature for
OpenWrt.
Below are the changes this patch introduced.
- Updated original IP/feature patches to LSDK 19.03.
- Added new IP/feature patches for eTSEC/PTP/TMU.
- Squashed scattered patches into IP/feature patches.
- Updated config-4.14 correspondingly.
- Refreshed all patches.
More info about LSDK and the kernel:
- https://lsdk.github.io/components.html
- https://source.codeaurora.org/external/qoriq/qoriq-components/linux
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Some targets deactivated CONFIG_SYN_COOKIES, for unknown reasons, use
the default setting from the generic configuration which activates
CONFIG_SYN_COOKIES.
This should prevent SYN flooding.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
CONFIG_COMPAT_BRK disables the heap randomization which is only needed
for very old and ancient user space applications, I am not aware that we
run any of these, just deactivate this option for these targets to allow
heap randomization.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This patch is to upgrade kernel to 4.14 for layerscape.
patches-4.14 for layerscape included two categories.
- NXP Layerscape SDK kernel-4.14 patches
All patches on tag LSDK-18.09-V4.14 were ported to OpenWrt
kernel. Since there were hundreds patches, we had to make
an all-in-one patch for each IP/feature.
See below links for LSDK kernel.
https://lsdk.github.io/components.htmlhttps://source.codeaurora.org/external/qoriq/qoriq-components/linux
- Non-LSDK kernel patches
Other patches which were not in LSDK were just put in patches-4.14.
Kept below patches from patches-4.9.
303-dts-layerscape-add-traverse-ls1043.patch
821-add-esdhc-vsel-to-ls1043.patch
822-rgmii-fixed-link.patch
Renamed and rebase them as below in patches-4.14,
303-add-DTS-for-Traverse-LS1043-Boards.patch
712-sdk-dpaa-rgmii-fixed-link.patch
824-mmc-sdhci-of-esdhc-add-voltage-switch-support-for-ls.patch
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Buildbot revealed some subtargets are still missing the new symbol.
Fixes: dfbf836a52 ("kernel: bump 4.9 to 4.9.143")
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Compaction is the only memory management component to form high order (larger
physically contiguous) memory blocks reliably. The page allocator relies on
compaction heavily and the lack of the feature can lead to unexpected OOM
killer invocations for high order memory requests. You shouldn't disable this
option unless there really is a strong reason for it.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Michal Hrusecky <michal.hrusecky@nic.cz>
The feature flags say that this target supports USB so packages
depending on USB are being build, but actually the kernel configuration
misses USB support. It looks like this SoC supports USB, so activate it.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The NXP TWR-LS1021A module is a development system based
on the QorIQ LS1021A processor.
- This feature-rich, high-performance processor module can
be used standalone or as part of an assembled Tower System
development platform.
- Incorporating dual Arm Cortex-A7 cores running up to 1 GHz,
the TWR-LS1021A delivers an outstanding level of performance.
- The TWR-LS1021A offers HDMI, SATA3 and USB3 connectors as
well as a complete Linux software developer's package.
- The module provides a comprehensive level of security that
includes support for secure boot, Trust Architecture and
tamper detection in both standby and active power modes,
safeguarding the device from manufacture to deployment.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
