Messages in this thread | | | Date | Tue, 14 Apr 2020 12:31:06 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v3 3/3] x86/delay: Introduce TPAUSE delay |
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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.
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