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| author | Nathan Lynch <nathanl@linux.ibm.com> | 2023-02-10 21:41:55 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-02-13 14:35:02 +0300 |
| commit | d6f7fe3b25f26213953066ce8109ea47dbd33cfa (patch) | |
| tree | 46a9f8675480394b1287c641766ebfbb5b96de1b /tools/perf/scripts/python/task-analyzer.py | |
| parent | 836b5b9fcc8e09cea7e8a59a070349a00e818308 (diff) | |
| download | linux-d6f7fe3b25f26213953066ce8109ea47dbd33cfa.tar.xz | |
powerpc/pseries: drop RTAS-based timebase synchronization
The pseries platform has been LPAR-only for several generations, and
the PAPR spec:
* Guarantees that timebase synchronization is performed by
the platform ("The timebase registers are synchronized by the
platform before CPUs are given to the OS" - 7.3.8 SMP Support).
* Completely omits the RTAS freeze-time-base and thaw-time-base RTAS
functions, which are CHRP artifacts.
This code is effectively unused on currently supported models, so drop
it.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230125-b4-powerpc-rtas-queue-v3-7-26929c8cce78@linux.ibm.com
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
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