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| author | Oliver O'Halloran <oohall@gmail.com> | 2017-06-29 09:12:54 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-31 06:26:51 +0200 |
| commit | df52f6714071c49a1fb1f541d4c4ff929bd4594d (patch) | |
| tree | 6433af245d729eaac3a6c38d65c7b1dcd917a6df /arch/powerpc/boot/opal-calls.S | |
| parent | powerpc/smp: Use cpu_to_chip_id() to find core siblings (diff) | |
| download | linux-df52f6714071c49a1fb1f541d4c4ff929bd4594d.tar.xz linux-df52f6714071c49a1fb1f541d4c4ff929bd4594d.zip | |
powerpc/smp: Rework CPU topology construction
The CPU scheduler topology is constructed from a number of per-cpu
cpumasks which describe which sets of logical CPUs are related in some
fashion. Current code that handles constructing these masks when CPUs
are hot(un)plugged can be simplified a bit by exploiting the fact that
the scheduler requires higher levels of the toplogy (e.g package level
groupings) to be supersets of the lower levels (e.g. threas in a core).
This patch reworks the cpumask construction to be simpler and easier to
extend with extra topology levels.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
[mpe: Fix CONFIG_HOTPLUG_CPU=n build]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/boot/opal-calls.S')
0 files changed, 0 insertions, 0 deletions