| commit | 5b9027d6d044d4917992119d184ab0bb616489cc | [log] [tgz] |
|---|---|---|
| author | Vineet Gupta <vgupta@synopsys.com> | Thu Oct 08 22:17:48 2015 +0530 |
| committer | Vineet Gupta <vgupta@synopsys.com> | Tue Nov 21 15:20:55 2017 -0800 |
| tree | 80b05c4295140b9d1828c1fb0475c3d5bd04f214 | |
| parent | 4d431290402c8d867af7ba45ee75407d68748c4a [diff] |
ARCv2: perf: optimize given that num counters <= 32 use ffz primitive which maps to ARCv2 instruction, vs. non atomic __test_and_set_bit It is unlikely if we will even have more than 32 counters, but still add a BUILD_BUG to catch that Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>