const golang.org/x/sys/unix.PERF_COUNT_HW_CACHE_OP_PREFETCH

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L1151: 	PERF_COUNT_HW_CACHE_OP_PREFETCH       = 0x2

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)