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| author | Max Filippov <[email protected]> | 2018-12-21 16:26:20 +0000 |
|---|---|---|
| committer | Max Filippov <[email protected]> | 2019-01-26 10:02:13 +0000 |
| commit | 32a7726c4f4aadfabdb82440d84f88a5a2c8fe13 (patch) | |
| tree | 5cdf2947f361d0d90c3322f3121316f93870bd5c /tools/perf/util/c++/clang.cpp | |
| parent | xtensa: SMP: fix ccount_timer_shutdown (diff) | |
| download | kernel-32a7726c4f4aadfabdb82440d84f88a5a2c8fe13.tar.gz kernel-32a7726c4f4aadfabdb82440d84f88a5a2c8fe13.zip | |
xtensa: SMP: fix secondary CPU initialization
- add missing memory barriers to the secondary CPU synchronization spin
loops; add comment to the matching memory barrier in the boot_secondary
and __cpu_die functions;
- use READ_ONCE/WRITE_ONCE to access cpu_start_id/cpu_start_ccount
instead of reading/writing them directly;
- re-initialize cpu_running every time before starting secondary CPU to
flush possible previous CPU startup results.
Signed-off-by: Max Filippov <[email protected]>
Diffstat (limited to 'tools/perf/util/c++/clang.cpp')
0 files changed, 0 insertions, 0 deletions