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 <[email protected]> Tested-by: Magnus Lindholm <[email protected]> Reviewed-by: Magnus Lindholm <[email protected]> --- arch/alpha/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index d039b7135d18..2672971b83f3 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -7,6 +7,7 @@ config ALPHA select ARCH_32BIT_USTAT_F_TINODE select ARCH_HAS_CURRENT_STACK_POINTER select ARCH_HAS_DMA_OPS if PCI + select ARCH_HAS_FAST_MULTIPLIER select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_HAS_UBSAN select ARCH_MIGHT_HAVE_PC_PARPORT -- 2.54.0
