Message ID | 20220301105311.885699-3-hch@lst.de (mailing list archive) |
---|---|
State | Handled Elsewhere |
Headers | show
Return-Path: <linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=jLl0j4bS; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=<UNKNOWN>) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4K7F5C1b3fz9sGF for <incoming@patchwork.ozlabs.org>; Tue, 1 Mar 2022 22:14:39 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4K7DfV4nHfz3cgS for <incoming@patchwork.ozlabs.org>; Tue, 1 Mar 2022 21:54:58 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=jLl0j4bS; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=bombadil.srs.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=batv+e5026ef6e36407c4b08a+6764+infradead.org+hch@bombadil.srs.infradead.org; receiver=<UNKNOWN>) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=jLl0j4bS; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4K7Dcy16c6z3bqr for <linuxppc-dev@lists.ozlabs.org>; Tue, 1 Mar 2022 21:53:35 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=8kkkqKTmx4an5HwtAkctrRmIlb8tNewwdnwFgQaeBs4=; b=jLl0j4bSOfVgHsr3MQ5Bv5W25W eBCL+ezlRGLhWYJUDEMLnfnY03XvNmRuJ3NVkaIN+j91e7hLR85KeZAUrre7FDsYIGG5LJVefqfFQ aBw4XS4clVWlj8OlW5+no9SoBD1TeUv7rQYDWrKf4OHZIcAUPacEQWejKAQpzWZV4sMB16ogBdJNd BYo+cef7t0HrzSLXHOj4597NsWHTixNewjzb8+eB6sepbzbOCAKRdiYjQ0SKHJwpHXjDNI+7jB/Nl V6d7NCk96h2kf6oMslvOoIEJGHn3fDqOVyBakQxgHeZAYF5ayU7+PWsZkl0kSLTP/USHzDRJXcvab v9YgSnow==; Received: from [2.53.44.23] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nP08A-00GCxm-Dw; Tue, 01 Mar 2022 10:53:23 +0000 From: Christoph Hellwig <hch@lst.de> To: iommu@lists.linux-foundation.org Subject: [PATCH 02/12] swiotlb: make swiotlb_exit a no-op if SWIOTLB_FORCE is set Date: Tue, 1 Mar 2022 12:53:01 +0200 Message-Id: <20220301105311.885699-3-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220301105311.885699-1-hch@lst.de> References: <20220301105311.885699-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from <hch@infradead.org> by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: Juergen Gross <jgross@suse.com>, Tom Lendacky <thomas.lendacky@amd.com>, linux-s390@vger.kernel.org, Stefano Stabellini <sstabellini@kernel.org>, linux-ia64@vger.kernel.org, Anshuman Khandual <anshuman.khandual@arm.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Robin Murphy <robin.murphy@arm.com>, Joerg Roedel <joro@8bytes.org>, x86@kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, tboot-devel@lists.sourceforge.net, linux-hyperv@vger.kernel.org, linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org, Boris Ostrovsky <boris.ostrovsky@oracle.com>, David Woodhouse <dwmw2@infradead.org>, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Lu Baolu <baolu.lu@linux.intel.com> Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org> |
Series |
[01/12] dma-direct: use is_swiotlb_active in dma_direct_map_page
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diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index bfc56cb217059..64b390136f9ef 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -378,6 +378,9 @@ void __init swiotlb_exit(void) unsigned long tbl_vaddr; size_t tbl_size, slots_size; + if (swiotlb_force == SWIOTLB_FORCE) + return; + if (!mem->nslabs) return;