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| author | Peter Zijlstra <peterz@infradead.org> | 2019-08-28 17:39:46 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-09-03 08:56:14 +0200 |
| commit | db4e919d9a119b7c54eb5e5ac9bee5d3eb4cb859 (patch) | |
| tree | ebeb54ead3a2f87b0efc5e63d5715fa5ed9a1fb9 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | 089cf7f6ecb266b6a4164919a2e69bd2f938374a (diff) | |
x86/math64: Provide a sane mul_u64_u32_div() implementation for x86_64
On x86_64 we can do a u64 * u64 -> u128 widening multiply followed by
a u128 / u64 -> u64 division to implement a sane version of
mul_u64_u32_div().
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions