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>
These options are handled by generic configuration
Targets that need these options should select KERNEL_DEVMEM
and/or KERNEL_DEVKMEM options on OpenWRT's config
Signed-off-by: Luis Araneda <luaraneda@gmail.com>
Reboot the oxnas target based on Linux 4.14 by rebasing our support on
top of the now-existing upstream kernel support.
This commit brings oxnas support to the level of v4.17 having upstream
drivers for Ethernet, Serial and NAND flash.
Botch up OpenWrt's local drivers for EHCI, SATA and PCIe based on the
new platform code and device-tree.
Re-introduce base-files from old oxnas target which works for now but
needs further clean-up towards generic board support.
Functional issues:
* PCIe won't come up (hence no USB3 on Shuttle KD20)
* I2C bus of Akitio myCloud device is likely not to work (missing
debounce support in new pinctrl driver)
Code-style issues:
* plla/pllb needs further cleanup -- currently their users or writing
into the syscon regmap after acquireling the clk instead of using
defined clk_*_*() functions to setup multipliers and dividors.
* PCIe phy needs its own little driver.
* SATA driver is a monster and should be split into an mfd having
a raidctrl regmap, sata controller, sata ports and sata phy.
Tested on MitraStar STG-212 aka. Medion Akoya MD86xxx and Shuttle KD20.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
THIN_ARCHIVES option is enabled by default in the kernel configuration
and no one target config disables it. So enable it by default and remove
this symbol from target specific configs to keep them light.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
New FUTEX_PI configuration symbol enabled if FUTEX and RT_MUTEX symbols
are enabled. Both of these symbols are enabled by default in the
generic config, so enable FUTEX_PI by default too to keep platform
specific configs minimal.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
OVERLAY_FS config symbol selects EXPORTFS since 4.12 kernel, we have
OVERLAY_FS enabled by default, so enable EXPORTFS in the generic config
of 4.14 and remove this option from platform specific configs.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
DRM_LIB_RANDOM config symbol selected only by DRM_DEBUG_MM_SELFTEST
which is disable by default, so disable DRM_LIB_RANDOM by default too.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
These options do not used by any supported arch, so disable them by
default to make arch configs a bit more clean.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Only one arch (x86_64) enables this option. So disable
ARCH_WANTS_THP_SWAP by default and remove referencies to it from all
configs (except x86_64) to make them clean.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Since the D-Link devices boot from hard disk we need to
add the following changes to Gemini:
- Supply a bootarg in the device tree so we can boot from
the right partition (/dev/sda4 on DNS-313)
- Disable forced command line in config so the kernel picks
up the right bootargs from the device tree
- Enable EXT4 in the config as this is used for rootfs else
we get nowhere, we cannot load this as a module because,
well, it is supposed to be loaded from the root partition
(chicken and egg problem).
- Enable jbd2 and mbcache (needed by ext4)
Also clean out the premature attempts to dynamically
modify the command line in the Image makefile: we should
pass this with the device tree bootargs instead, it works
much better.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Roman Yeryomin <roman@advem.lv>
Disable video and input drivers - they are needed only for one
board and can be enabled via modules if/when UI will be available.
Use LED drivers from packages.
Cleanup other things unnecessarily overriding defaults.
Signed-off-by: Roman Yeryomin <roman@advem.lv>
This adds the patches to get fairly complete Gemini support
using kernel v4.14. It is mainly a backport of patches from
kernel v4.16 with omissions of things like graphics that require
substantial changes and will be better handled once we move
to the v4.16 kernel proper.
On top of this are some WIP patches for USB support.
Tested on Raidsonic NAS4220B and D-link DNS-313.
ChangeLog v4->v5:
- Fix ethernet single gmac usecase
- Fix USB reset (patch from Hans)
- Fix Raidsonic ethernet skew delay
- Fix kernel config (bridge, squashfs, jffs2, usb)
- Disable second usb port on Raidsonic board until fotg210_hcd is fixed
ChangeLog v3->v4:
- Make sure to use tabs rather than spaces in base-files.
- Use the dns313 image tool from the firmware-utils.
- Break out the addition of the v4.14 patches and the removal
of the v4.4 patches to separate (big) patches.
ChangeLog v2->v3:
- Update the kernel config as indicated by Hauke Martens:
- Regenerate again after rebasing using kernel_oldconfig
dropping a few optimization settings that are now generic
- Drop CFG80211 stuff (module)
- Drop CIFS stuff (module)
- Drop MAC80211 (module)
- Drop wireless drivers (module)
- Enabled OverlayFS
- Added proper DNS-313 boot image generation with the special
file header tool.
- Disable CMA in the kernel
- Enable LZMA compression of the kernel
- Consequently name the nas4220b images nas4220b
- Update preinit MAC detection script to handle also DNS-313
- Add board.d/03_hdparm to set the disk to spin down after
1 minute by default, if we have the hdparm tool installed
ChangeLog v1->v2:
- Processed config through kernel_oldconfig
- Processed patches through make target/linux/{clean,refresh} V=99
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Roman Yeryomin <roman@advem.lv>
Daniel Golle