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=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 B31D7C433FF for ; Tue, 30 Jul 2019 08:08:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7AA8F2087F for ; Tue, 30 Jul 2019 08:08:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="epaSeSql" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730897AbfG3IIv (ORCPT ); Tue, 30 Jul 2019 04:08:51 -0400 Received: from merlin.infradead.org ([205.233.59.134]:55920 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730839AbfG3IIu (ORCPT ); Tue, 30 Jul 2019 04:08:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=y3iFGUlRLtMdNYNKd2rPyoY/5unGucudlv15bLsbMXQ=; b=epaSeSql5Ltv22UQ0FpT70mNB txTtD475/TBnKgqzZqFZNu9hwPS5tMfzbOtHpJUQngl6rt/7v6kvfj3+rYw3jsSTcOoI2mKrHtcDK AtrKAHVjM0WCx7GKyJRaolGHRFiDda8K2vFnSwWzvY9M18XGN2BmWxGBorYdrrcieQtg2/yGC8wC/ LRomltpyYrbTzBTqW5wA7k1NZJy/7XCV34DzizooFC+f+WX+nkRouPkkwmqWITg6wK4OZwQjw1tFM IdSVow4M0IleXzUzGO0RRsLxMZ84RVeQ1gHklKHrjbG5wBG2OFGYkcd/UcQVX7cwFDVLLVOpHjE8B 9fvvM2kzg==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hsNBc-0005JA-Fx; Tue, 30 Jul 2019 08:08:44 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 42CE320AFFE9F; Tue, 30 Jul 2019 10:08:43 +0200 (CEST) Date: Tue, 30 Jul 2019 10:08:43 +0200 From: Peter Zijlstra To: Alexey Dobriyan Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86: drop REG_OUT macro from hweight functions Message-ID: <20190730080843.GG31381@hirez.programming.kicks-ass.net> References: <20190728115140.GA32463@avx2> <20190729094329.GW31381@hirez.programming.kicks-ass.net> <20190729100447.GD31425@hirez.programming.kicks-ass.net> <20190729204417.GA2146@avx2> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190729204417.GA2146@avx2> 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 On Mon, Jul 29, 2019 at 11:44:17PM +0300, Alexey Dobriyan wrote: > On Mon, Jul 29, 2019 at 12:04:47PM +0200, Peter Zijlstra wrote: > > +#define _ASM_ARG1B __ASM_FORM_RAW(dil) > > +#define _ASM_ARG2B __ASM_FORM_RAW(sil) > > +#define _ASM_ARG3B __ASM_FORM_RAW(dl) > > +#define _ASM_ARG4B __ASM_FORM_RAW(cl) > > +#define _ASM_ARG5B __ASM_FORM_RAW(r8b) > > +#define _ASM_ARG6B __ASM_FORM_RAW(r9b) > > I preprocessed percpu code once to see what precisely it does because > it was easier than wading through forest of macroes. Per cpu is easy, try reading the tracepoint code ;-)