From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FAKE_REPLY_C,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 312A6C19759 for ; Thu, 1 Aug 2019 19:43:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E02F82084C for ; Thu, 1 Aug 2019 19:43:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="lAEEIYfd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388743AbfHATny (ORCPT ); Thu, 1 Aug 2019 15:43:54 -0400 Received: from mail-wm1-f65.google.com ([209.85.128.65]:33245 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388732AbfHATny (ORCPT ); Thu, 1 Aug 2019 15:43:54 -0400 Received: by mail-wm1-f65.google.com with SMTP id h19so4384433wme.0 for ; Thu, 01 Aug 2019 12:43:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=ip5LJvSWonzgpjcBCxCiwSmzzSy496hPUaAkxCkzgAQ=; b=lAEEIYfd7FgFY0bLugCEaeuMOFEgEKfx4fYCE/16KHfc9pkko9MT6Yr0JJK+byJ8fZ SPLPveSZifYUIdUpX6TsCgEA2c3D8pvzFQ6ey8/x7plN7y75cGK4Z1lwgDeQhdtzpDKX 6wVVwmqPx1AbltH8n68I2FGsYL0V/bOoOQFE8/E4VBW+qhcivY4tWYyzC1dXwG+wtos3 CrzcH1eP53hdfrjwkXed3/TdDwPbfGercCRmEJfM+M8ztKMAFFEW6jQOYnNjTN8sJucV mkuyZSl8RM68FdKhu7jMkLRCT07dIX6t9XjshvOvD94J2BWOXqcqs3PbCF9CeSWeI279 JUXg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=ip5LJvSWonzgpjcBCxCiwSmzzSy496hPUaAkxCkzgAQ=; b=FH1WnV7G2pePF9jpmGSBK2xBOM5aURSYZb6eLBWuixYRmDo0yLJhSRtVac0MSt+0qz SC8/rrL69XM8S49IA6UreURUl8ldtm5NAlkGbd0mLDZkhici8WtZPx81z+6zqOcLmP+C mvYeBWQ8CtxVhcj2FogHCPlUKAQgPaq8oU5RNe+LIUeKHHhFFqNga3SVnGQl27Un0fzz c/TS/qrdMYC2u5SpSUrkUW7DQ57VvYx4rfq8cWrus8kWytbHBwFUF0SouxKw0NPxwPjV qMeLg9gC5anbMOpL7APqoG2h+mOh/TP8u0z6yTvhgXHpyR8j2vDQOJ4irDt14jUqFfmI Or3g== X-Gm-Message-State: APjAAAXrNCVla7/u5GRFLmSNPGu2YRDIDWHAVAHFTgTuhiZUAXV/LhHr fD+IDqwLlQl2/FceH8oMGQjULhA= X-Google-Smtp-Source: APXvYqy4ScvSCxw5mWV8GWq21/bnYmYyqqSI5rIHg9gkYbqMG0uUEsUvNcqDsr0eUXvi9ZTowl9nJA== X-Received: by 2002:a7b:cd9a:: with SMTP id y26mr307345wmj.44.1564688631792; Thu, 01 Aug 2019 12:43:51 -0700 (PDT) Received: from avx2 ([46.53.248.54]) by smtp.gmail.com with ESMTPSA id o26sm143878055wro.53.2019.08.01.12.43.50 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Aug 2019 12:43:50 -0700 (PDT) Date: Thu, 1 Aug 2019 22:43:48 +0300 From: Alexey Dobriyan To: kirill.shutemov@linux.intel.com Cc: linux-kernel@vger.kernel.org, jing.lin@intel.com, bp@alien8.de, tony.luck@intel.com, x86@kernel.org Subject: Re: [PATCH] x86/asm: Add support for MOVDIR64B instruction Message-ID: <20190801194348.GA6059@avx2> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > +static inline void movdir64b(void *dst, const void *src) > +{ > + /* movdir64b [rdx], rax */ > + asm volatile(".byte 0x66, 0x0f, 0x38, 0xf8, 0x02" > + : "=m" (*(char *)dst) ^^^^^^^^^^ > + : "d" (src), "a" (dst)); > +} Probably needs fake 64-byte type, so that compiler knows what is dirty.