From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [103.22.144.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 99E9E1A02DE for ; Thu, 10 Mar 2016 19:46:25 +1100 (AEDT) Date: Thu, 10 Mar 2016 19:46:21 +1100 From: Paul Mackerras To: Alexey Kardashevskiy Cc: linuxppc-dev@lists.ozlabs.org, Alex Williamson , David Gibson , kvm-ppc@vger.kernel.org, kvm@vger.kernel.org Subject: Re: [PATCH kernel 4/9] powerpc/powernv/iommu: Add real mode version of xchg() Message-ID: <20160310084621.GD1230@fergus.ozlabs.ibm.com> References: <1457322077-26640-1-git-send-email-aik@ozlabs.ru> <1457322077-26640-5-git-send-email-aik@ozlabs.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1457322077-26640-5-git-send-email-aik@ozlabs.ru> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, Mar 07, 2016 at 02:41:12PM +1100, Alexey Kardashevskiy wrote: > In real mode, TCE tables are invalidated using different > cache-inhibited store instructions which is different from > the virtual mode. I suggest "In real mode, TCE tables are invalidated using special cache-inhibited store instructions which are not available in virtual mode". Also, the subject could make people think it's about the kernel xchg() function defined in . Paul.