From patchwork Tue Mar 21 11:08:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiaxun Yang X-Patchwork-Id: 13182578 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D777C7618D for ; Tue, 21 Mar 2023 11:09:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230228AbjCULJC (ORCPT ); Tue, 21 Mar 2023 07:09:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229627AbjCULId (ORCPT ); Tue, 21 Mar 2023 07:08:33 -0400 Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E094E1A1; Tue, 21 Mar 2023 04:08:28 -0700 (PDT) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id DBDC25C01B6; Tue, 21 Mar 2023 07:08:27 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Tue, 21 Mar 2023 07:08:27 -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=1679396907; x= 1679483307; bh=34g1rJ4eKpg7Mv3jK1Pi5YCKoRtvBAJ5vAexAPGkFH0=; b=Y K+9dSwiWN5z6O7qjaYxoOOE1GCx05bPaiar5IBe0GjOE2Gg72p2f1IvsY/C//OWx p7gSbGBNOoVVoloLCrHjB4SPaKQarMqBkqpg1FkmXpAYD0a9QUllqA+t/Zo5vaI/ laKToT9DVbZp+Aq6xcH5Dn2+4uzMuFhnBzMzTRW/uvE7iuDXF228IBsD5u9Iz+e3 bS96ZBzP00NWoXYZYiFBMW4xzi1+TMNAxsn81ZvIpwBF73jmbDczEyDK1jCTteAm KMqVvasp6Ub2ZXkViwPfjvitj4I2bu6zgxR7/5uZngv9z+Yg2ynUTvo7zOglVgc6 v4fvrc5XV5TUVhAUuYVig== 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=1679396907; x= 1679483307; bh=34g1rJ4eKpg7Mv3jK1Pi5YCKoRtvBAJ5vAexAPGkFH0=; b=W OwhmSW5w8OdUB4dg8PnaHDyMCfwhHm5a8sgXyqO0PVSFhO1MDiYQADBuCXpN7zk5 pIYVpmA+kPdwRYhzhrn8dVTWB8GyioN19BZ5CxJu67Gs+EE0H0KFo7qWXHCmQ/vr vGGMnfuYBiOQKw2h5lSL8yQmvxH+IgJRd2JBa8bPLNI/6ucTd2xKPdK6vPai++Ex s7soBPUCCq5+8cZGQcgskcxjWoFOcykPujeauciWTd/oIA+gpah/wLNbT3e/BUBI zzhjGOmJ97oV+jghV+2ihL/1QGxZt3gex5MxlL5qMK0QXYhcmg3n+Jc82s2Dp2VR tK+HB0so+lUgPj9tsFPzA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrvdegtddgvdegucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvfevufffkffojghfggfgsedtke ertdertddtnecuhfhrohhmpeflihgrgihunhcujggrnhhguceojhhirgiguhhnrdihrghn ghesfhhlhihgohgrthdrtghomheqnecuggftrfgrthhtvghrnhepfeeludefheegvdeuvd dvgeekgfdvtdettdelieeihfegtedugeekhfdvhfejfedtnecuvehluhhsthgvrhfuihii vgeptdenucfrrghrrghmpehmrghilhhfrhhomhepjhhirgiguhhnrdihrghnghesfhhlhi hgohgrthdrtghomh X-ME-Proxy: Feedback-ID: ifd894703:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 21 Mar 2023 07:08:26 -0400 (EDT) From: Jiaxun Yang To: linux-mips@vger.kernel.org Cc: 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, Jiaxun Yang Subject: [PATCH v3 2/4] dma-mapping: Provide a fallback dma_default_coherent Date: Tue, 21 Mar 2023 11:08:11 +0000 Message-Id: <20230321110813.26808-3-jiaxun.yang@flygoat.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20230321110813.26808-1-jiaxun.yang@flygoat.com> References: <20230321110813.26808-1-jiaxun.yang@flygoat.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.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