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The CONFIG_MIPS_CPS SMP implementation should be able to handle all
cases the CONFIG_MIPS_CMP implementation does, but without requiring
bootloader assistance. It is also required in order to make use of
features such as hotplug & cpuidle core power gating. Enable it by
default for Malta configs that previously enabled the now deprecated
CONFIG_MIPS_CMP, and disable the latter. The local version suffix "cmp"
is removed rather than replaced with "cps" since there are other ways to
tell that the CPS SMP implementation is in use (the "VPE topology" line
in the boot log being one).
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
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The previous NR_CPUS=2 default is not an optimal default for current
Malta setups where it is common to have more than 2 CPUs available. It
makes sense to increase this to a number which covers all common setups
currently in use, such that all of those cores are usable. 8 seems to
fit that description.
If the user has less than 8 CPUs & they wish to have a more optimal
kernel they can simply reduce this in their config. It makes sense for
the default to work on as many systems as possible.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6580/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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For Malta defconfigs which may run on an SMP configuration without
hardware cache anti-aliasing, a 16KB page size is a safer default.
Most notably at the moment it will avoid cache aliasing issues for
multicore proAptiv systems.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6579/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Recent versions of udev and systemd require the kernel
to be compiled with CONFIG_DEVTMPFS in order to populate
the /dev directory. Most MIPS platforms have it enabled by
default, so enable it for Malta configs as well.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6582/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This patch simply regenerates the malta defconfigs such that they don't
change after being used & saved as a defconfig again. ie. it is the
result of running the following:
for cfg in arch/mips/configs/malta*; do
ARCH=mips make `basename ${cfg}`
ARCH=mips make savedefconfig
mv -v defconfig ${cfg}
done
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6578/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This patch accomplishes the following:
* Clean up wording on all MIPS MT configuration menu items.
* Simplify and neaten up options selected by MIPS_MT_SMP.
* Make MIPS_MT_SMTC support as deprecated.
* Make MIPS_CMP support to depend on MIPS_MT_SMP also.
* Remove redundant options selected by MIPS_CMP.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6019/
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Add in new Malta config files for SMVP, SMTC, and APRP. Also update
the original 'malta_defconfig' config file.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
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