From patchwork Sat Apr 1 09:15:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiaxun Yang X-Patchwork-Id: 13196834 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 D2030C76196 for ; Sat, 1 Apr 2023 09:16:05 +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:MIME-Version:References:In-Reply-To: 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: List-Owner; bh=kzvTGrZtl/bWOFQQTX3DwoMDJ1utYOmNOvaHq+p0UWs=; b=3hG09b3952uYAW tyP5BvSjIR8yyNSYoIJaQt2tuLvLz9fwBg/KSBoO5KiG+gjnmvkwrv54wMcv7L6JaAaNHxDmQLoYV Bf0VyxOOwlH92Vfge36O7sDg/eD96CydUZLnVN7DwQ8JLE8YHh+lWaaBcaylsD5nW9036Z/gVDL92 xyv2cEQy83R4AKOoProsnqerINbhHT/o0rnuSTyBK0AlXhqbreCMS40GTMA5aIlykdoxBIvr1apKO hongCuDV4wgkORYbjuY02L19Wohm7oxmq1H4Lks5Ns36d6tGaRghOGA8YzjFXB499iSCSYEG4bH9b EYbQ097KgzXn0jiepfYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1piXKu-00A5R9-0C; Sat, 01 Apr 2023 09:15:48 +0000 Received: from out1-smtp.messagingengine.com ([66.111.4.25]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1piXKq-00A5PK-2t for linux-riscv@lists.infradead.org; Sat, 01 Apr 2023 09:15:46 +0000 Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 3CDED5C0209; Sat, 1 Apr 2023 05:15:42 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute2.internal (MEProxy); Sat, 01 Apr 2023 05:15:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=flygoat.com; h= cc:cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm3; t=1680340542; x= 1680426942; bh=6ZdUaz0bULSUdlfaxIi2pdkawZZOMF82ZopwMrFwfbc=; b=Z Yb64APEBRmQX6qnsbQ+gNGAqCe47A5ugfKPHsjoS0juWhirZbuCy5OqsbGVin0aQ MCprU8gXASeLV3u4fhQCB8Xmr6q9QR4w2HZJpdtlKTwu5UTiyxJEYkR+RtRyVRde UTwLtqN6qhUwO6xah+aI7dLJmA/yb8qsL05ZmqE47UppENL8RgKP+t5PLWHyEYgv sxhwSxbBQD+ye3z4TVmNgvmBGIE+aGU84qke6fbp70ckULSF34+i1MBOcxAd3u2K aob00h3PmgtGo76UIlwN0CqufBnhZt1E57/1uA+egkRWe6wX35P3VsqLKRW9J3oR P1NvJ1J8XM4zvQBVfbpog== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t=1680340542; x= 1680426942; bh=6ZdUaz0bULSUdlfaxIi2pdkawZZOMF82ZopwMrFwfbc=; b=n 2+Sns5MlCMh2CS5VbD4r4+tfWPBNZW4RfSSeYLJQ1wxvtWZeI+w//zhC/SBMe2wN Ue5yAxnK70ImQ5HLFWx9k1/JZJ3vvGMKku6U7/6tioBsUC5cTtJekxHafJNmyZMh hUfkRF+AkKbFh00IiA8DUKvrLFElH8m8uZF2yJcPjkaUmm3LnOm40eWxKN6e7AKe 6MGiQItIbp/g9gx/F0//fNfDMvpcMLTWiAdmoCfZpKcNQGBEeeNXWetaW27oUc1G KardIf3w6xRRk8YcR5R5mVHjbM/0sHBYN3d2fSqnbAGZkeleeQp9xCv24tHbLrut ukVhLPN80yCeH5PYfwmtw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrvdeifedgudegucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvfevufffkffojghfggfgsedtke ertdertddtnecuhfhrohhmpeflihgrgihunhcujggrnhhguceojhhirgiguhhnrdihrghn ghesfhhlhihgohgrthdrtghomheqnecuggftrfgrthhtvghrnhepfeeludefheegvdeuvd dvgeekgfdvtdettdelieeihfegtedugeekhfdvhfejfedtnecuvehluhhsthgvrhfuihii vgeptdenucfrrghrrghmpehmrghilhhfrhhomhepjhhirgiguhhnrdihrghnghesfhhlhi hgohgrthdrtghomh X-ME-Proxy: Feedback-ID: ifd894703:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sat, 1 Apr 2023 05:15:40 -0400 (EDT) From: Jiaxun Yang To: iommu@lists.linux.dev Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, tsbogend@alpha.franken.de, mpe@ellerman.id.au, paul.walmsley@sifive.com, palmer@dabbelt.com, robh+dt@kernel.org, hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, Jiaxun Yang Subject: [PATCH v4 1/3] dma-mapping: Provide a fallback dma_default_coherent Date: Sat, 1 Apr 2023 10:15:29 +0100 Message-Id: <20230401091531.47412-2-jiaxun.yang@flygoat.com> X-Mailer: git-send-email 2.39.2 (Apple Git-143) In-Reply-To: <20230401091531.47412-1-jiaxun.yang@flygoat.com> References: <20230401091531.47412-1-jiaxun.yang@flygoat.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230401_021545_342615_00F9B413 X-CRM114-Status: UNSURE ( 6.59 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org dma_default_coherent was decleared unconditionally at kernel/dma/mapping.c but only decleared when any of non-coherent options is enabled in dma-map-ops.h. Guard the declaration in mapping.c with non-coherent options and provide a fallback definition. Signed-off-by: Jiaxun Yang --- v3: Style fix --- include/linux/dma-map-ops.h | 2 ++ kernel/dma/mapping.c | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/include/linux/dma-map-ops.h b/include/linux/dma-map-ops.h index 41bf4bdb117a..31f114f486c4 100644 --- a/include/linux/dma-map-ops.h +++ b/include/linux/dma-map-ops.h @@ -269,6 +269,8 @@ static inline bool dev_is_dma_coherent(struct device *dev) return dev->dma_coherent; } #else +#define dma_default_coherent true + static inline bool dev_is_dma_coherent(struct device *dev) { return true; diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index 68106e3791f6..80f9663ffe26 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -17,7 +17,11 @@ #include "debug.h" #include "direct.h" +#if defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE) || \ + defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU) || \ + defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU_ALL) bool dma_default_coherent; +#endif /* * Managed DMA API From patchwork Sat Apr 1 09:15:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiaxun Yang X-Patchwork-Id: 13196832 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 EFE79C77B6C for ; Sat, 1 Apr 2023 09:15:58 +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:MIME-Version:References:In-Reply-To: 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: List-Owner; bh=0OqmHZWiUCYelNGGTQQTnc6pOSsn5pj3s0fJLCzZom8=; b=ppXP+jiveVv2YO NDl+bjxA4zXMo1kYHDBCZU+5avmIFWDOO9yAZheXnuKEWi0kiAPGHqdqMebHR9wlYG+BrqPIe7tbZ uo553MTtw6Jo2B4hZ5pXK5o8Fe0JS3QOPtc+GpNrNy1p1frAaawGx3S/VKEcj8OoU8/HjU/+3d96i WFCB6F8ZstZK9+nbDsO41njwm1JI0wHNG8zDrAArEEKzmlx/Mz6pHfuaRbMF1rkz1iPB86pO9YK2q 1oh2jFy7lG7JkrBvN1SU+0QI9K1m/4GiR+TOGsl3207U0l2U0OAx4ETXRn5dNSXqv0cP/tzoPZ3bT Va4gTtd2xiDD3QaIndbA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1piXKu-00A5RV-1p; Sat, 01 Apr 2023 09:15:48 +0000 Received: from out1-smtp.messagingengine.com ([66.111.4.25]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1piXKr-00A5PV-0e for linux-riscv@lists.infradead.org; Sat, 01 Apr 2023 09:15:46 +0000 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 9AD625C0214; Sat, 1 Apr 2023 05:15:44 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Sat, 01 Apr 2023 05:15:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=flygoat.com; h= cc:cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm3; t=1680340544; x= 1680426944; bh=JpbN5IRZb6DqYHnvTvcNliYuUkNmoAjg1AAlzmLaQmQ=; b=O fyvzn1NLcTeL8TgMDKC9oBdYsNDJMKT8IYUADTSvqInU+x3AqmRlydpc4vpEcSon E2pJu6k8iERJ5BxEgFQz8OhfeWanI/7RNa7U2i/mcH9CROnjq/PI4JX8kK8SXJ90 4YHAMc49Rzs6DZwzGnWwkYebD6VwUUiGB01N2yQ7XX5feoOncflpl7/4qHm77O/c 8siQ2c7XNf+UtwIwRCGoifjaqamZAgUdcGEkIFRSZGISpXWwUA8Dz187RCCIhH4l IeLBt5CQ/0Vx9r5hBnFsbwrJw7srcx+iQGs30W5Gg7XUXuhcIqnjEHDsG7K1aAGW sF7mP5B5fIWjnGJj1Fcyg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t=1680340544; x= 1680426944; bh=JpbN5IRZb6DqYHnvTvcNliYuUkNmoAjg1AAlzmLaQmQ=; b=b 3EU5viCN9n5Q/XcEG6kEHQ6OgJHwWYiwzDMw5NOElssD3rSPHT2rgcBZmNbqmX0D Vpb9rWZr8Ttxk2ZJtP0sdK8TMYz975B8Mlc5jRqdPMxN6mkrVOkpE4JZaSueUbSI SDwj+pY+usF1YFacNUCyBWcxBPhTnpXvyX/cvCknC5O4a1/hKNh8gQkLOYOxVZ1D SIOccPByKwESdya6Q56UgIE94/Z2QIxvof9WPfBLFlE+H82bQmakaPMoVlRCwvBb bDHfWa0mYr5+/iZ3pgKVXwV7Z4fgVheoBOidUAH6oBlHzsZkGYewioXIAfk5POgJ uES4bxkFy623qmPzgh6BQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrvdeifedgudegucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvfevufffkffojghfggfgsedtke ertdertddtnecuhfhrohhmpeflihgrgihunhcujggrnhhguceojhhirgiguhhnrdihrghn ghesfhhlhihgohgrthdrtghomheqnecuggftrfgrthhtvghrnhepfeeludefheegvdeuvd dvgeekgfdvtdettdelieeihfegtedugeekhfdvhfejfedtnecuvehluhhsthgvrhfuihii vgeptdenucfrrghrrghmpehmrghilhhfrhhomhepjhhirgiguhhnrdihrghnghesfhhlhi hgohgrthdrtghomh X-ME-Proxy: Feedback-ID: ifd894703:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sat, 1 Apr 2023 05:15:42 -0400 (EDT) From: Jiaxun Yang To: iommu@lists.linux.dev Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, tsbogend@alpha.franken.de, mpe@ellerman.id.au, paul.walmsley@sifive.com, palmer@dabbelt.com, robh+dt@kernel.org, hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, Jiaxun Yang Subject: [PATCH v4 2/3] dma-mapping: Provide CONFIG_ARCH_DMA_DEFAULT_COHERENT Date: Sat, 1 Apr 2023 10:15:30 +0100 Message-Id: <20230401091531.47412-3-jiaxun.yang@flygoat.com> X-Mailer: git-send-email 2.39.2 (Apple Git-143) In-Reply-To: <20230401091531.47412-1-jiaxun.yang@flygoat.com> References: <20230401091531.47412-1-jiaxun.yang@flygoat.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230401_021545_342635_781A1F71 X-CRM114-Status: UNSURE ( 7.84 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Provide a kconfig option to allow arches to manipulate default value of dma_default_coherent in Kconfig. Signed-off-by: Jiaxun Yang --- v3: Add comments --- kernel/dma/Kconfig | 7 +++++++ kernel/dma/mapping.c | 2 +- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig index 56866aaa2ae1..6677d0e64d27 100644 --- a/kernel/dma/Kconfig +++ b/kernel/dma/Kconfig @@ -76,6 +76,13 @@ config ARCH_HAS_DMA_PREP_COHERENT config ARCH_HAS_FORCE_DMA_UNENCRYPTED bool +# +# Select this option if the architecture assumes DMA devices are coherent +# by default. +# +config ARCH_DMA_DEFAULT_COHERENT + bool + config SWIOTLB bool select NEED_DMA_MAP_STATE diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index 80f9663ffe26..9a4db5cce600 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -20,7 +20,7 @@ #if defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE) || \ defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU) || \ defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU_ALL) -bool dma_default_coherent; +bool dma_default_coherent = IS_ENABLED(CONFIG_ARCH_DMA_DEFAULT_COHERENT); #endif /* From patchwork Sat Apr 1 09:15:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiaxun Yang X-Patchwork-Id: 13196833 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 CFB06C77B60 for ; Sat, 1 Apr 2023 09:16:00 +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:MIME-Version:References:In-Reply-To: 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: List-Owner; bh=Mdd5b2GZgV0m755UdkBVvbEJagIlrAXdOaWvULNxMRo=; b=Iy0/N6MvkRI75t WJNfYIwx+ZelXyfLKqkYbxxTqmjc7Gn7loHB8x9rCH8amuEI0EgmLY0p1EJgDJMtUDhYvrTVEs4uI GOaYkXNWlp7WtlJaGgYYBRRVc4sJ8Sa5PXB44OX195glF8lWV/6LTm0RHCzZu3tipQrlcX7Osa6Rq C56R1/Mz+n7X1gaudKMKwEsnWNhJGq0OWznemDKov/Iye/s8DH/rlZcUWQTVWgIsj7PWa0sEYUPlb lVRfzCYuaaXhlnziW59yxtDP7jahd3WGKovud+9CnPR0S99IblKIm3FkyyEYpIDax4UQLAWfRsdAM t9HZrYTWoJD48glwPrBQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1piXKw-00A5Sa-0M; Sat, 01 Apr 2023 09:15:50 +0000 Received: from out1-smtp.messagingengine.com ([66.111.4.25]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1piXKt-00A5Qt-1R for linux-riscv@lists.infradead.org; Sat, 01 Apr 2023 09:15:48 +0000 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id D4D1C5C0215; Sat, 1 Apr 2023 05:15:46 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Sat, 01 Apr 2023 05:15:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=flygoat.com; h= cc:cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm3; t=1680340546; x= 1680426946; bh=hcnHw+44/BST0LlazN+bGPEtcTMQwb2S8vINX4/AFbM=; b=B tjfwkOCgUBddKw0AfFN9aSDCGtJ7cj6iPzmn9lNGjgaMMuN2p0D1voxnc0b+D0t1 WSiLn6iLpMaHZL9npSONbVslZKur2IP/nHqDCz1MrLWnCa3fhjwkp3dDacdFwUdF O5R1AdhTwBel7MRg0GuwuXCrVBB5VEO8ICxl2wvVbQzHDhvPemaP7sQI/wEKMhN7 pYMQt0OWrOGaVEGMOQgzPhW002om69/yLvNYTPwqlEZ1UqUEiVVPLsS9Y42s1Mbx fMEBdeL9qaLdH6C45x+5kDiCS2AsIB3f6ebNnq6jzfA4z3bMrffYPnk9mDTVHqt+ GlJXIe8DxGkTlA5H+8W/A== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t=1680340546; x= 1680426946; bh=hcnHw+44/BST0LlazN+bGPEtcTMQwb2S8vINX4/AFbM=; b=R O5MclV+8iYZGEjTibnyUUa6zqcv/oOriD0wfapql6pJXDi33Z+FTOdEkg2RfemmH nf+BcjZLGWjZLyz0cQolPfXYoc86OC7UpeSMQNTd3A/qhOlbI5WMZWZNyy73PoS0 ob5+F7+ag7xUC/b8Vqdx4GrjcSsZe1jaL9Q1jadu158xshYBoJQbAfYnaBfsn76C 7Na7uwtKsJw6EQ6KNULJwiUfQslSJOV2wTSC1dPXbvHBEZxdfLwTeuvm98X+aK1c DDMY0TUlKFR89L8p4akclzvJJ4vmbj4gqGDhqrr9U68YpNsYJ2Zc0njLUJYnbnE3 Frz+qUvEF8vQaCEnVXUTg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrvdeifedgudegucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomheplfhirgig uhhnucgjrghnghcuoehjihgrgihunhdrhigrnhhgsehflhihghhorghtrdgtohhmqeenuc ggtffrrghtthgvrhhnpeefledufeehgedvuedvvdegkefgvddttedtleeiiefhgeetudeg kefhvdfhjeeftdenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfh hrohhmpehjihgrgihunhdrhigrnhhgsehflhihghhorghtrdgtohhm X-ME-Proxy: Feedback-ID: ifd894703:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sat, 1 Apr 2023 05:15:44 -0400 (EDT) From: Jiaxun Yang To: iommu@lists.linux.dev Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, tsbogend@alpha.franken.de, mpe@ellerman.id.au, paul.walmsley@sifive.com, palmer@dabbelt.com, robh+dt@kernel.org, hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, Jiaxun Yang , Rob Herring Subject: [PATCH v4 3/3] of: address: Always use dma_default_coherent for default coherency Date: Sat, 1 Apr 2023 10:15:31 +0100 Message-Id: <20230401091531.47412-4-jiaxun.yang@flygoat.com> X-Mailer: git-send-email 2.39.2 (Apple Git-143) In-Reply-To: <20230401091531.47412-1-jiaxun.yang@flygoat.com> References: <20230401091531.47412-1-jiaxun.yang@flygoat.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230401_021547_552629_D34F3FC4 X-CRM114-Status: GOOD ( 10.22 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org As for now all arches have dma_default_coherent reflecting default DMA coherency for of devices, so there is no need to have a standalone config option. Signed-off-by: Jiaxun Yang Reviewed-by: Rob Herring Acked-by: Michael Ellerman (powerpc) --- v3: Squash setting ARCH_DMA_DEFAULT_COHERENT into this patch. --- arch/powerpc/Kconfig | 2 +- arch/riscv/Kconfig | 2 +- drivers/of/Kconfig | 4 ---- drivers/of/address.c | 2 +- 4 files changed, 3 insertions(+), 7 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 26725cdef2be..6777f6158bdd 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -113,6 +113,7 @@ config PPC # select ARCH_32BIT_OFF_T if PPC32 select ARCH_DISABLE_KASAN_INLINE if PPC_RADIX_MMU + select ARCH_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE select ARCH_ENABLE_MEMORY_HOTPLUG select ARCH_ENABLE_MEMORY_HOTREMOVE select ARCH_HAS_COPY_MC if PPC64 @@ -273,7 +274,6 @@ config PPC select NEED_PER_CPU_PAGE_FIRST_CHUNK if PPC64 select NEED_SG_DMA_LENGTH select OF - select OF_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE select OF_EARLY_FLATTREE select OLD_SIGACTION if PPC32 select OLD_SIGSUSPEND diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 3fb099bfa232..5a28e36b1ef1 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -12,6 +12,7 @@ config 32BIT config RISCV def_bool y + select ARCH_DMA_DEFAULT_COHERENT select ARCH_ENABLE_HUGEPAGE_MIGRATION if HUGETLB_PAGE && MIGRATION select ARCH_ENABLE_SPLIT_PMD_PTLOCK if PGTABLE_LEVELS > 2 select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE @@ -122,7 +123,6 @@ config RISCV select MODULES_USE_ELF_RELA if MODULES select MODULE_SECTIONS if MODULES select OF - select OF_DMA_DEFAULT_COHERENT select OF_EARLY_FLATTREE select OF_IRQ select PCI_DOMAINS_GENERIC if PCI diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index 644386833a7b..e40f10bf2ba4 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -102,8 +102,4 @@ config OF_OVERLAY config OF_NUMA bool -config OF_DMA_DEFAULT_COHERENT - # arches should select this if DMA is coherent by default for OF devices - bool - endif # OF diff --git a/drivers/of/address.c b/drivers/of/address.c index 4c0b169ef9bf..23ade4919853 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -1103,7 +1103,7 @@ phys_addr_t __init of_dma_get_max_cpu_address(struct device_node *np) bool of_dma_is_coherent(struct device_node *np) { struct device_node *node; - bool is_coherent = IS_ENABLED(CONFIG_OF_DMA_DEFAULT_COHERENT); + bool is_coherent = dma_default_coherent; node = of_node_get(np);