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| author | Matt Turner <mattst88@gmail.com> | 2026-09-05 15:29:28 -0400 |
|---|---|---|
| committer | Magnus Lindholm <linmag7@gmail.com> | 2026-09-11 16:29:39 +0200 |
| commit | d8df465bc46d1d6169a05dd55f82ec0dfa639a31 (patch) | |
| tree | 268f8330a36782b64eeba0b639446661a940bb7a /tools/perf/scripts/python/stackcollapse.py | |
| parent | b345db9e12089e0221e4ac9e36124affdf879443 (diff) | |
| download | linux-d8df465bc46d1d6169a05dd55f82ec0dfa639a31.tar.gz linux-d8df465bc46d1d6169a05dd55f82ec0dfa639a31.zip | |
alpha: select ARCH_HAS_FAST_MULTIPLIER
All Alpha CPUs have hardware integer multiply (MULL/MULQ). EV4 and EV5
implement it in microcode; EV56 and later have fast single-cycle
multiply. Since no EV4 system is likely to run a modern kernel, select
this unconditionally to enable multiply-based fast paths in hweight and
string routines.
Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Matt Turner <mattst88@gmail.com>
Tested-by: Magnus Lindholm <linmag7@gmail.com>
Reviewed-by: Magnus Lindholm <linmag7@gmail.com>
Link: https://lore.kernel.org/r/20260905-arch-kconfig-options-v2-v2-7-83e8245761a2@gmail.com
Signed-off-by: Magnus Lindholm <linmag7@gmail.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions