The harden branch predictor was backported for arm64 with 4.9.92-96.
Fixes: 9aa196e0f2 ("kernel: bump 4.9 to bump 4.9.96")
Signed-off-by: Mathias Kresin <dev@kresin.me>
Disable CONFIG_PROC_PAGE_MONITOR in most places and only keep it enabled
for virtual targets such as malta or potent ones like x86.
This saves up to 4KB of uncompressed kernel size and significantly
decreases CPU load under certain workloads.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
While bumping 4.14, the kernel build failed due to missing CONFIG_KASAN
symbol. Move it to generic config instead of defining it for all arm64
and x86/64 targets.
It was only added in 4.0, so not needed in config-3.18.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
CONFIG_SG_POOL symbol is selected only by CONFIG_SCSI, since the last
one is disabled by default then disable CONFIG_SG_POOL by default too.
And explicitly enable it only for platforms that use CONFIG_SCSI.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
With cpufreq disabled, the CPU stays locked at the frequency set by the
bootloader. This severely degrades performance as the bootloader sets
the CPU at the lowest frequency by default.
Enable cpufreq for all subtargets and use the ondemand governor.
Tested bcm2708 on RPi0W. Tested bcm2709 and bcm2710 on RPi3.
Reported-by: Bryan Mayland <bmayland@capnbry.net>
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
This fixes:
Thermal sensors on bcm2835 SoC (BCM2835_THERMAL) [N/m/y/?] (NEW) aborted!
This symbol depends on ARCH_BCM2835 so it should be OK to disable it at
brcm2708 target only.
Fixes: 7d32caa61fb0 ("brcm2708: backport upstream sdhost controller driver")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
As usual these patches were extracted and rebased from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.9.y
- Remove led1 from diag.sh for RPi3 since it causes boot issues.
- Fix modules.mk typos.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
64 bit support for Raspberry Pi 3 is experimental. However, bcm2709 subtarget
should serve as a stable and compatible 32 bit support.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Mathias Kresin
Christo Nedev
Jo-Philipp Wich
Stijn Tintel
Sergey Ryazanov
Rafał Miłecki
Álvaro Fernández Rojas