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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5D03AEB64DD for ; Thu, 20 Jul 2023 08:23:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=6GF90V+7dVEGFOGL0e6rqiwo1l9jtRxmBjcnW7I7b0A=; b=rrEsV1zQuviO/5 DpqQLPjuDuLjwfp6Gm/m+nSMYQvS8DoVANeqXnuOh1BGx+cxJMimjGsTyXGORjeEMICilDBbBBMzL 3/zOJmAznqB2G+Kd/st9GWCxSLhjv6cos4BgUG37YfskVGX9/lWei8YhYuy9opZmCbh5ukuPwSQtI kl2YAjI7lywZs6Gr5LzL4er1wd4y4HudmUHIKdp3a4/i8PG+GGUO6lMun6j3n9l73EdtdB/M0bisA X6pH14JyAiT0e79tMItiNpdJiW1hBiorlRvK6WQGgq11yq939/uydHe1LcIESLGXUcIQIUH7FTNdf YYpohx74wEdZc31vnx7g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qMOvx-00AI2u-1q; Thu, 20 Jul 2023 08:22:49 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qMOvv-00AI2C-12 for linux-arm-kernel@lists.infradead.org; Thu, 20 Jul 2023 08:22:48 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 6B09B6732D; Thu, 20 Jul 2023 10:22:42 +0200 (CEST) Date: Thu, 20 Jul 2023 10:22:42 +0200 From: Christoph Hellwig To: Petr =?utf-8?B?VGVzYcWZw61r?= Cc: Christoph Hellwig , Petr Tesarik , Stefano Stabellini , Russell King , Thomas Bogendoerfer , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , "H. Peter Anvin" , Greg Kroah-Hartman , "Rafael J. Wysocki" , Juergen Gross , Oleksandr Tyshchenko , Marek Szyprowski , Robin Murphy , Petr Tesarik , Jonathan Corbet , Andy Shevchenko , Hans de Goede , James Seo , James Clark , Kees Cook , "moderated list:XEN HYPERVISOR ARM" , "moderated list:ARM PORT" , open list , "open list:MIPS" , "open list:XEN SWIOTLB SUBSYSTEM" , Roberto Sassu , Kefeng Wang Subject: Re: [PATCH v4 8/8] swiotlb: search the software IO TLB only if a device makes use of it Message-ID: <20230720082242.GA6932@lst.de> References: <20230720064744.GA4395@lst.de> <20230720100238.58f11c06@meshulam.tesarici.cz> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230720100238.58f11c06@meshulam.tesarici.cz> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230720_012247_522192_E9136E94 X-CRM114-Status: GOOD ( 18.10 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVGh1LCBKdWwgMjAsIDIwMjMgYXQgMTA6MDI6MzhBTSArMDIwMCwgUGV0ciBUZXNhxZnDrWsg d3JvdGU6Cj4gT24gVGh1LCAyMCBKdWwgMjAyMyAwODo0Nzo0NCArMDIwMAo+IENocmlzdG9waCBI ZWxsd2lnIDxoY2hAbHN0LmRlPiB3cm90ZToKPiAKPiA+IEFueSByZWFzb24gdGhpcyBjYW4ndCBq dXN0IGRvIGEgbGlzdF9lbXB0eV9jYXJlZnVsIG9uIHRoZSBsaXN0Cj4gPiBpbnN0ZWFkIG9mIGFk ZGluZyB5ZXQgYW5vdGhlciBmaWVsZCB0aGF0IGdyb3dzIHN0cnVjdCBkZXZpY2U/Cj4gCj4gT24g d2hpY2ggbGlzdD8KCmRldi0+ZG1hX2lvX3RsYl9tZW0tPnBvb2xzPwoKPiAKPiBUaGUgZG1hX2lv X3RsYl9wb29scyBsaXN0IG9ubHkgY29udGFpbnMgdHJhbnNpZW50IHBvb2xzLCBidXQgYSBkZXZp Y2UKPiBtYXkgdXNlIGJvdW5jZSBidWZmZXJzIGZyb20gYSByZWd1bGFyIHBvb2wuCgpPaCwgdHJ1 ZS4KCj4gVGhlIGRtYV9pb190bGJfbWVtLnBvb2xzIGxpc3Qgd2lsbCBhbHdheXMgYmUgbm9uLWVt cHR5LCB1bmxlc3MgdGhlCj4gc3lzdGVtIHJ1bnMgd2l0aG91dCBTV0lPVExCLgo+IAo+IE9uIGEg c3lzdGVtIHdoaWNoIGRvZXMgaGF2ZSBhIFNXSU9UTEIsIHRoZSBmbGFnIGFsbG93cyB0byBkaWZm ZXJlbnRpYXRlCj4gYmV0d2VlbiBkZXZpY2VzIHRoYXQgYWN0dWFsbHkgdXNlIGJvdW5jZSBidWZm ZXJzIGFuZCBkZXZpY2VzIHRoYXQgZG8KPiBub3QgKGUuZy4gYmVjYXVzZSB0aGV5IGRvIG5vdCBo YXZlIGFueSBhZGRyZXNzaW5nIGxpbWl0YXRpb25zKS4KCk9rLgoKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxp c3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZy YWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=