diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2015-07-27 17:23:28 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2016-09-30 14:48:17 -0700 |
| commit | ce6365270ecd1216b48fb1440978e454ae0144de (patch) | |
| tree | 2e46017d408be15aa5834675cd11c06122fc353c /scripts/gcc-plugins/cyc_complexity_plugin.c | |
| parent | 26c01c49d559268527d78f45a6818fae0c204a45 (diff) | |
ARCv2: Implement atomic64 based on LLOCKD/SCONDD instructions
ARCv2 ISA provides 64-bit exclusive load/stores so use them to implement
the 64-bit atomics and elide the spinlock based generic 64-bit atomics
boot tested with atomic64 self-test (and GOD bless the person who wrote
them, I realized my inline assmebly is sloppy as hell)
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'scripts/gcc-plugins/cyc_complexity_plugin.c')
0 files changed, 0 insertions, 0 deletions