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| author | Nathan Lynch <nathanl@linux.ibm.com> | 2023-02-10 21:41:50 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-02-13 14:35:01 +0300 |
| commit | cc4b26eab1859fa1a70711872caaf6414809973f (patch) | |
| tree | 179fee8994ff35fca4cef62a643adbbde9698e8d /tools/perf/scripts/python/task-analyzer.py | |
| parent | 09d1ea72c88198ef5a9e6b8208f544fe18acbff1 (diff) | |
| download | linux-cc4b26eab1859fa1a70711872caaf6414809973f.tar.xz | |
powerpc/perf/hv-24x7: add missing RTAS retry status handling
The ibm,get-system-parameter RTAS function may return -2 or 990x,
which indicate that the caller should try again. read_24x7_sys_info()
ignores this, allowing transient failures in reporting processor
module information.
Move the RTAS call into a coventional rtas_busy_delay()-based loop,
along with the parsing of results on success.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Fixes: 8ba214267382 ("powerpc/hv-24x7: Add rtas call in hv-24x7 driver to get processor details")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230125-b4-powerpc-rtas-queue-v3-2-26929c8cce78@linux.ibm.com
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions