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 4A9D8CCD193 for ; Wed, 15 Oct 2025 09:13:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=AK5JNO+tk0EUNoLAagtlVnkvBynllSeAX1mkYPchUeo=; b=wIIycOxa6SGXoFnApL96ctI4Z+ ccEKyMX1/n3ZiIJrPy0zJSgpxpD/9BPpegUINTQXRI4TvZNRP6vBPyVP0p5OeCrR+fHBvsY26C7mR HBWMJhYU91JUNDCj0rnIwI3I1zpVoCLdENQve8NP3Gpw0g69kHyKYCYdoE9Zj9nHo+c01n1L1pBwQ k5gSHgjCU5ynmmP8WIAU51sgJyaU9pxTc7Q8luDlvzlxJYoYiUwhY6zydOEv708zwl1T599Z28JfO J99zORQH7YAzayMVTqYNxbZWxuUEfjKWbetGQqEzctrm1v8qpTuP0ayeFQS4KIk7Fj8nGEYeCqeOw MzrG1Zcw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v8xZI-0000000140N-0ghk; Wed, 15 Oct 2025 09:13:12 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v8xZF-000000013zg-13E0 for linux-arm-kernel@lists.infradead.org; Wed, 15 Oct 2025 09:13:10 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id D36264172E; Wed, 15 Oct 2025 09:13:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D5DDC4CEF8; Wed, 15 Oct 2025 09:13:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760519588; bh=ywR7wdHo9iJDPAMnOLxx2KSfcpdMYgaVYoeQgeEMVE0=; h=From:To:Cc:Subject:Date:From; b=T/fn/Q7Et3W/XoUP2+BW/BncjyLdn9Q59dx4I+uKrVGVx83N3CoqpvJHFxWuqRsC+ XdbXTMel6OirvBhxiFjPLifrL1qZ1WA1GV0CfnbnyJ0gLcqjgJlrUBUk085bytleC1 Ps1/U8qadzNDPEXTFtbAw3rfhPCKp+JJvyNHVNWiVzxBuTqLX4e1h0uwpfnG6FXSGu ahv0t+DTPlJs6QFO33ojzLxd9DpyMUAoYg7u/ZEvqC360GdrnKWc4kvzqrKjjOzNyu sfpnfCdbcfzoWkUMqnORIpnF4VZ9xrYID8Bc3PCTstBRCa5sVe3z7x9f1ejmwsSTxY 9ePteT4berpfg== From: Leon Romanovsky To: Marek Szyprowski , Robin Murphy , Russell King , Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , Richard Henderson , Matt Turner , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Geoff Levand , "David S. Miller" , Andreas Larsson , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" Cc: iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, xen-devel@lists.xenproject.org, linux-alpha@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, Magnus Lindholm , Jason Gunthorpe Subject: [PATCH v5 00/14] Remove DMA map_page/map_resource and their unmap callbacks Date: Wed, 15 Oct 2025 12:12:46 +0300 Message-ID: <20251015-remove-map-page-v5-0-3bbfe3a25cdf@kernel.org> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Change-ID: 20251015-remove-map-page-a28302e6cc7d X-Mailer: b4 0.15-dev Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251015_021309_511212_08003681 X-CRM114-Status: GOOD ( 11.86 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series is a combination of previous two steps [1, 2] to reduce number of accesses to struct page in the code "below" DMA layer. In this series, the DMA .map_page/.map_resource/.unmap_page/.unmap_resource callbacks are converted to newly introduced .map_phys/.unmap_phys interfaces. Thanks [1] https://lore.kernel.org/all/cover.1758203802.git.leon@kernel.org [2] https://lore.kernel.org/all/cover.1759071169.git.leon@kernel.org --- Leon Romanovsky (14): dma-mapping: prepare dma_map_ops to conversion to physical address dma-mapping: convert dummy ops to physical address mapping ARM: dma-mapping: Reduce struct page exposure in arch_sync_dma*() ARM: dma-mapping: Switch to physical address mapping callbacks xen: swiotlb: Switch to physical address mapping callbacks dma-mapping: remove unused mapping resource callbacks alpha: Convert mapping routine to rely on physical address MIPS/jazzdma: Provide physical address directly parisc: Convert DMA map_page to map_phys interface powerpc: Convert to physical address DMA mapping sparc: Use physical address DMA mapping x86: Use physical address for DMA mapping xen: swiotlb: Convert mapping routine to rely on physical address dma-mapping: remove unused map_page callback arch/alpha/kernel/pci_iommu.c | 48 ++++----- arch/arm/mm/dma-mapping.c | 180 +++++++++---------------------- arch/mips/jazz/jazzdma.c | 20 ++-- arch/powerpc/include/asm/iommu.h | 8 +- arch/powerpc/kernel/dma-iommu.c | 22 ++-- arch/powerpc/kernel/iommu.c | 14 +-- arch/powerpc/platforms/ps3/system-bus.c | 33 +++--- arch/powerpc/platforms/pseries/ibmebus.c | 15 +-- arch/powerpc/platforms/pseries/vio.c | 21 ++-- arch/sparc/kernel/iommu.c | 30 ++++-- arch/sparc/kernel/pci_sun4v.c | 31 +++--- arch/sparc/mm/io-unit.c | 38 +++---- arch/sparc/mm/iommu.c | 46 ++++---- arch/x86/kernel/amd_gart_64.c | 19 ++-- drivers/parisc/ccio-dma.c | 54 +++++----- drivers/parisc/iommu-helpers.h | 10 +- drivers/parisc/sba_iommu.c | 54 +++++----- drivers/xen/grant-dma-ops.c | 20 ++-- drivers/xen/swiotlb-xen.c | 63 +++++------ include/linux/dma-map-ops.h | 14 +-- kernel/dma/dummy.c | 13 ++- kernel/dma/mapping.c | 26 +---- kernel/dma/ops_helpers.c | 12 ++- 23 files changed, 361 insertions(+), 430 deletions(-) --- base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787 change-id: 20251015-remove-map-page-a28302e6cc7d Best regards, -- Leon Romanovsky