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| author |   Jisheng Zhang <jszhang@kernel.org> | 2021-05-12 22:55:45 +0800 |
|---|---|---|
| committer |   Palmer Dabbelt <palmerdabbelt@google.com> | 2021-05-25 22:56:57 -0700 |
| commit | 37a7a2a10ec525a79d733008bc7fe4ebbca34382 (patch) | |
| tree | c4d7257ecfe7a54eec0286b274de15ae56eb68a7 /tools/perf/scripts/python/stackcollapse.py | |
| parent | riscv: Optimize switch_mm by passing "cpu" to flush_icache_deferred() (diff) | |
| download | wireguard-linux-37a7a2a10ec525a79d733008bc7fe4ebbca34382.tar.xz wireguard-linux-37a7a2a10ec525a79d733008bc7fe4ebbca34382.zip | |
riscv: Turn has_fpu into a static key if FPU=y
The has_fpu check sits at hot code path: switch_to(). Currently, has_fpu
is a bool variable if FPU=y, switch_to() checks it each time, we can
optimize out this check by turning the has_fpu into a static key.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions