Disable the aarch64 NEON SIMD intrinsics for kernel builds. Safely
using them in the kernel context requires saving/restoring the FPU
registers which is not currently done.
Additionally, remove the aarch64 optimized PREFETCH_L1 and PREFETCH_L2
instruction. Rely on the more portable compiler built ins.
This lets us remove the problematic workaround in the aarch64_compat.h
header which undefines the __aarch64__ macro.
Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#17904Closes#17852
Sponsored-by: https://despairlabs.com/sponsor/
Signed-off-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
It's much nicer to import from upstream this way, and compiles
faster too.
Everything in lib/ is unmodified 1.4.5.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes#12978
