[PATCH 0/4] arm64 topology support
Mark Brown
broonie at kernel.org
Thu Dec 19 15:06:11 EST 2013
From: Mark Brown <broonie at linaro.org>
Another spin of the arm64 topology work - this should incorporate most
of the feedback from Lorenzo, there's a few things that were still under
discussion the main ones being:
- Should we have a smp_store_cpu_info(); like I say I like the errors
it generates for omitted cores and the reuse of the SMP enumeration
code (and cross-check with that I guess - make sure we don't get
confused about which CPUs are getting enabled).
- Should we update the binding to allow cores in the root cpu_map node
(since it's less effort in code and not a meaningful difference
semantically), warn if we find cores in the cpu_map node or actively
reject such DTs?
In both cases I don't much mind but I think what's there is reasonable
so I've left the code as-is pending further feedback. I also didn't
update the code to get more reuse of the iteration code, like I said I
did look at that when writing the code but couldn't find anything that
actually made things more pleasant but if someone has some ideas...
Everything else raised should be addressed I think.
Mark Brown (4):
arm64: topology: Implement basic CPU topology support
arm64: topology: Add support for topology DT bindings
arm64: topology: Tell the scheduler about the relative power of cores
arm64: topology: Provide relative power numbers for cores
arch/arm64/Kconfig | 24 +++
arch/arm64/include/asm/topology.h | 39 ++++
arch/arm64/kernel/Makefile | 1 +
arch/arm64/kernel/smp.c | 12 ++
arch/arm64/kernel/topology.c | 384 ++++++++++++++++++++++++++++++++++++++
5 files changed, 460 insertions(+)
create mode 100644 arch/arm64/include/asm/topology.h
create mode 100644 arch/arm64/kernel/topology.c
--
1.8.5.2
More information about the linux-arm-kernel
mailing list