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 X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6C75DC0650F for ; Mon, 5 Aug 2019 07:56:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 41618217F4 for ; Mon, 5 Aug 2019 07:56:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="fp0Xe1C0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727744AbfHEH4y (ORCPT ); Mon, 5 Aug 2019 03:56:54 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:43446 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726394AbfHEH4v (ORCPT ); Mon, 5 Aug 2019 03:56:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; 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:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=mP2CgnPK3wGe7c/LAwYezyw+0OCXX14bjF2g7MdIhRE=; b=fp0Xe1C0a+H/6nttgaF4k3uKtL WLfrrCtSJHXTZ4A5bGnNFtgNisOpWgEuNm9708tROs/OZfy+0RlhgUewGUorDxLlkjIYYwkGZ4DJF 8e+FduwvByXTvEOvSIvSWhAi2nmlNeElOPHpk3d9pa9hpl/zkd0UYLMm8p3aDsssyWmkcEK8NULFy NiCH3y6ouOMGpuJB0glQjlQVVeGfckDR/pWytOAgFCxtw80gPdOCZgs51fKBp/QsvOY+W8pi6C/+v OgXoJKNRn/0ziOZtKZ6PE+yi6KcMwYqXDbyoAFhoOEL7QkjVdVXfDaGCiJVCBbqi3W74CRh3Ivv0L lm/9tp5g==; Received: from [195.167.85.94] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1huXrK-0000xQ-Dy; Mon, 05 Aug 2019 07:56:47 +0000 From: Christoph Hellwig To: Russell King - ARM Linux admin Cc: Roger Quadros , Vignesh Raghavendra , linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Konrad Rzeszutek Wilk Subject: [PATCH] arm: initialize the dma-remap atomic pool for LPAE configs Date: Mon, 5 Aug 2019 10:56:37 +0300 Message-Id: <20190805075637.5373-2-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190805075637.5373-1-hch@lst.de> References: <20190805075637.5373-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When we use the generic dma-direct + remap code we also need to initialize the atomic pool that is used for GFP_ATOMIC allocations on non-coherent devices. Fixes: ad3c7b18c5b3 ("arm: use swiotlb for bounce buffering on LPAE configs") Signed-off-by: Christoph Hellwig --- arch/arm/mm/dma-mapping.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 6774b03aa405..e509365cc9ca 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -2423,4 +2423,10 @@ void arch_dma_free(struct device *dev, size_t size, void *cpu_addr, { __arm_dma_free(dev, size, cpu_addr, dma_handle, attrs, false); } + +static int __init atomic_pool_init(void) +{ + return dma_atomic_pool_init(GFP_DMA, pgprot_noncached(PAGE_KERNEL)); +} +postcore_initcall(atomic_pool_init); #endif /* CONFIG_SWIOTLB */ -- 2.20.1