24 Sep
2021
24 Sep
'21
4:41 a.m.
On Mon, Aug 30, 2021 at 03:05:23PM +0200, Marek Vasut wrote:
ARMv8.0 has optional crc32 instruction for crc32 calculation. The instruction is mandatory since ARMv8.1. The crc32 calculation is faster using the dedicated instruction, e.g. 1.4 GHz iMX8MN gives:
=> time crc32 0x50000000 0x2000000 time: 0.126 seconds # crc32 instruction time: 0.213 seconds # software crc32
Add implementation using the compiler builtin wrapper for the crc32 instruction and enable it by default, since we don't support any platforms which do not implement this instruction.
Signed-off-by: Marek Vasut marex@denx.de Cc: Simon Glass sjg@chromium.org Cc: Tom Rini trini@konsulko.com
Applied to u-boot/next, thanks!
--
Tom