From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3vnm9T5xlxzDq7c for ; Wed, 22 Mar 2017 08:27:09 +1100 (AEDT) Message-ID: <1490131572.2504.56.camel@kernel.crashing.org> Subject: Re: Optimised memset64/memset32 for powerpc From: Benjamin Herrenschmidt To: Matthew Wilcox , Christophe LEROY Cc: paulus@samba.org, mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org Date: Wed, 22 Mar 2017 08:26:12 +1100 In-Reply-To: <20170321132910.GA4482@bombadil.infradead.org> References: <20170320211447.GB5073@bombadil.infradead.org> <18c572e8-a269-c76e-b3a1-e745ac20e5a7@c-s.fr> <20170321132910.GA4482@bombadil.infradead.org> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2017-03-21 at 06:29 -0700, Matthew Wilcox wrote: > > Well, those are the generic versions in the first patch: > > http://git.infradead.org/users/willy/linux-dax.git/commitdiff/538b977 > 6ac925199969bd5af4e994da776d461e7 > > so if those are good enough for you guys, there's no need for you to > do anything. > > Thanks for your time! I suspect on ppc64 we can do much better, if anything moving 64-bit at a time. Matthew, what are the main use cases of these ? Cheers, Ben.