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| author | Liav Rehana <[email protected]> | 2017-06-15 11:44:00 +0300 |
|---|---|---|
| committer | Vineet Gupta <[email protected]> | 2017-08-28 15:17:36 -0700 |
| commit | 28923f6b74060b183207a373ddae4ce4948cabea (patch) | |
| tree | c2c393d1e3821cd51942614d94146f2af9601d0e /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 5b2189ab6ee0717babac912f779dcd440e942173 (diff) | |
ARC: [plat-eznps] handle extra aux regs #2: kernel/entry exit
Preserve eflags and gpa1 aux during entry/exit into kernel as these
could be modified by kernel mode
These registers used by compare exchange instructions.
- GPA1 is used for compare value,
- EFLAGS got bit reflects atomic operation response.
EFLAGS is zeroed for each new user task so it won't get its
parent value.
Signed-off-by: Liav Rehana <[email protected]>
Signed-off-by: Noam Camus <[email protected]>
Signed-off-by: Vineet Gupta <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions