We choose 64 because the L1 Dcache of Loongson 3A5000 CPU is
4-way 256-line 64-byte-per-line.
Change-Id: Ifb9a9f993dd6f75b5adb4ff6e4d93e945b1b2a98
Reviewed-on: https://go-review.googlesource.com/c/go/+/408854
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Alex Rakoczy <alex@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com>