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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_MUTT autolearn=ham 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 85460C48BE3 for ; Thu, 20 Jun 2019 21:12:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 53A8521670 for ; Thu, 20 Jun 2019 21:12:53 +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="hSK4P6Q+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726353AbfFTVMw (ORCPT ); Thu, 20 Jun 2019 17:12:52 -0400 Received: from merlin.infradead.org ([205.233.59.134]:48528 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725905AbfFTVMv (ORCPT ); Thu, 20 Jun 2019 17:12:51 -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=0HS7QabWzOE0lGuJDgN7eO3a8AHNo77B8NNsl00ZW0o=; b=hSK4P6Q+aI2V2fmtzKj+TQxXo lrhLG1E7AMA1xbQLLK07+LL+mXPu8KhTZQ76R545mLSN9WmUWPt1E63AkTrbmoIb4wXqK7CJ6wC/5 054RxSHYBpNn1Grm+DlQH7ZrcGoMnHRT7XifZ6MN7HKdXRUEov1B+lY2/dGCnIQoRQBNHqQxeBk9T 7M2I64up3RntotM2+FGRXXIzcJHDpORozcAaWfGuGOumWnhi1Undr3aKlhSU2gczm3hzbq5ysJ7hG 1FiNUONvRUnzH7yNGCCJqEdkkjifRsFMcxbr0TauDBGulnw4+3BSwbiU4fqCfZgd0LUAvlzF5/KVr tB5VVvItA==; 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 1he4MO-0002m8-H1; Thu, 20 Jun 2019 21:12:44 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 30EE52021E583; Thu, 20 Jun 2019 23:12:42 +0200 (CEST) Date: Thu, 20 Jun 2019 23:12:42 +0200 From: Peter Zijlstra To: Eugeniy Paltsev Cc: "Vineet.Gupta1@synopsys.com" , "jbaron@redhat.com" , "linux-snps-arc@lists.infradead.org" , Alexey Brodkin , "linux-arch@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "pbonzini@redhat.com" , "ard.biesheuvel@linaro.org" Subject: Re: [PATCH] ARC: ARCv2: jump label: implement jump label patching Message-ID: <20190620211242.GB3436@hirez.programming.kicks-ass.net> References: <20190614164049.31626-1-Eugeniy.Paltsev@synopsys.com> <20190619081227.GL3419@hirez.programming.kicks-ass.net> <50a5120f512e7d6784efa403a7597c159074c8c1.camel@synopsys.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <50a5120f512e7d6784efa403a7597c159074c8c1.camel@synopsys.com> 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 Thu, Jun 20, 2019 at 06:34:29PM +0000, Eugeniy Paltsev wrote: > On Wed, 2019-06-19 at 10:12 +0200, Peter Zijlstra wrote: > > On Tue, Jun 18, 2019 at 04:16:20PM +0000, Vineet Gupta wrote: > > I'm assuming you've looked at what x86 currently does and found > > something like that doesn't work for ARC? > > To be honest I've mostly look at arm/arm64 implementation :) Yeah, but that's fixed instruction width RISC. They have it easy.