Jeremy Linton a64241ba49 arm64: topology: Use PPTT to determine if PE is a thread
Commit 98dc19902a upstream.

ACPI 6.3 adds a thread flag to represent if a CPU/PE is
actually a thread. Given that the MPIDR_MT bit may not
represent this information consistently on homogeneous machines
we should prefer the PPTT flag if its available.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Robert Richter <rrichter@marvell.com>
[will: made acpi_cpu_is_threaded() return 'bool']
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-10-17 13:45:35 -07:00
2019-10-11 18:21:44 +02:00
2019-10-11 18:21:44 +02:00

Linux kernel
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