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| author | Max Filippov <jcmvbkbc@gmail.com> | 2018-12-21 08:26:20 -0800 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2019-01-26 02:02:13 -0800 |
| commit | 32a7726c4f4aadfabdb82440d84f88a5a2c8fe13 (patch) | |
| tree | 5cdf2947f361d0d90c3322f3121316f93870bd5c /drivers/staging/vt6655/power.c | |
| parent | 4fe8713b873fc881284722ce4ac47995de7cf62c (diff) | |
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 <jcmvbkbc@gmail.com>
Diffstat (limited to 'drivers/staging/vt6655/power.c')
0 files changed, 0 insertions, 0 deletions