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Date: Thu, 29 May 2014 07:44:31 +0100 From: "Jan Beulich" <jbeulich@...e.com> To: <linux@...izon.com>, <tim.c.chen@...ux.intel.com> Cc: <linux-kernel@...r.kernel.org> Subject: Re: [RFC PATCH] crypto: crc32c-pclmul - Use pmovzxdq to shrink K_table >>> "George Spelvin" <linux@...izon.com> 05/28/14 11:47 PM >>> >Jan Beulich <jbeulich@...e.com> wrote: >> "George Spelvin" <linux@...izon.com> 05/28/14 4:40 PM >>> Jan: Is support for SLE10's pre-2.18 binutils still required? >>> Your PEXTRD fix was only a year ago, so I expect, but I wanted to ask. > >> I'd much appreciate if I would be able to build the kernel that way for >> another while. > >Does it matter that the code I'm working on is 64-bit only? No. >It aready >uses crc32q instruction (added with SSE4.2) with no assembler workarounds, >so I figure pmovzxdq (part of SSE 4.1) doesn't make it any worse. If that's the case, then adding another (earlier) one shouldn't be an issue. Jan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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