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Gate AVX-512BW gen1/gen2 behind slow_avx512() to avoid double-pumped shuffle penalties

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Andrea Mazzoleni 2026-06-04 09:41:53 +02:00
parent bc686928ec
commit 9e1652673d
1 changed files with 2 additions and 2 deletions
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4
raid/x86.c
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@ -3187,9 +3187,9 @@ void raid_register_x86(void)
#ifdef CONFIG_X86_64
if (raid_cpu_has_avx512bw()) {
raid_gen_register(RAID_ALGO_CAUCHY_PAR1, "avx512", raid_gen1_avx512bw);
raid_gen_register(RAID_ALGO_CAUCHY_PAR2, "avx512", raid_gen2_avx512bw);
if (!raid_cpu_has_slow_avx512()) {
raid_gen_register(RAID_ALGO_CAUCHY_PAR1, "avx512", raid_gen1_avx512bw);
raid_gen_register(RAID_ALGO_CAUCHY_PAR2, "avx512", raid_gen2_avx512bw);
raid_gen_register(RAID_ALGO_CAUCHY_PAR3, "avx512", raid_gen3_avx512bw);
raid_gen_register(RAID_ALGO_CAUCHY_PAR4, "avx512", raid_gen4_avx512bw);
raid_gen_register(RAID_ALGO_CAUCHY_PAR5, "avx512", raid_gen5_avx512bw);