Re: [PATCH v3 3/3] x86/delay: Introduce TPAUSE delay

[Peter Zijlstra]

On Fri, Apr 10, 2020 at 04:29:55PM -0700, Kyung Min Park wrote:
> +static inline void __tpause(u32 ecx, u32 edx, u32 eax)
> +{
> +	/* "tpause %ecx, %edx, %eax;" */
> +	asm volatile(".byte 0x66, 0x0f, 0xae, 0xf1\t\n"
> +		     :
> +		     : "c"(ecx), "d"(edx), "a"(eax));
> +}

Can we please get a comment stating from what binutils version this
opcode has a mnemonic? That way, when we raise the minimum binutils
version we can easily grep and find such things.