From patchwork Mon Aug 26 12:19:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11114545 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C6CEE14E5 for ; Mon, 26 Aug 2019 12:22:07 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A3892217F5 for ; Mon, 26 Aug 2019 12:22:07 +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="ccx+/pUC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A3892217F5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1i2Dyr-0006U6-8D; Mon, 26 Aug 2019 12:20:17 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1i2Dyp-0006Tb-9f for xen-devel@lists.xenproject.org; Mon, 26 Aug 2019 12:20:15 +0000 X-Inumbo-ID: d3151526-c7fb-11e9-b95f-bc764e2007e4 Received: from bombadil.infradead.org (unknown [2607:7c80:54:e::133]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id d3151526-c7fb-11e9-b95f-bc764e2007e4; Mon, 26 Aug 2019 12:20:00 +0000 (UTC) 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=ZJgCE8VaT9ExMOoCkwFiJUHvSb4wx5RyTACIYTHpVAQ=; b=ccx+/pUC2Px9ZtFSoSgwf3fgQe MqQ62RGFxHrqG45mNd8ilMTmT4JrhEVAySuJy6LRSGtjnW3Hdh3a76KWYcGd7eF9mj/36vS3jh7cg IbF5puJUGBN0KCBAlfrGfxvFD5HCUO2eJn2A4KTo2IuQMUZh5TixAzSMkEe3GXaKRUPMmiwfDGZOX OWM7GWc2iB/J9WshSAIOdufyfr48m0oaA255syJMg7nBa+l6gQfX6MFGCYmqHU9+85QGgjglbtmPv AxOVXeiTzGEe+FjSFnGqXusM3izLelOWNSi8FgcAmgvNrDDOItvZPNMg+luCjfJjt2saMMOxH2Ndw 9cS5iyJg==; Received: from clnet-p19-102.ikbnet.co.at ([83.175.77.102] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1i2DyW-0002OV-UB; Mon, 26 Aug 2019 12:19:57 +0000 From: Christoph Hellwig To: Stefano Stabellini , Konrad Rzeszutek Wilk Date: Mon, 26 Aug 2019 14:19:37 +0200 Message-Id: <20190826121944.515-5-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190826121944.515-1-hch@lst.de> References: <20190826121944.515-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Subject: [Xen-devel] [PATCH 04/11] xen/arm: remove xen_dma_ops X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: x86@kernel.org, Julien Grall , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-arm-kernel@lists.infradead.org Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" arm and arm64 can just use xen_swiotlb_dma_ops directly like x86, no need for a pointer indirection. Signed-off-by: Christoph Hellwig Reviewed-by: Julien Grall Reviewed-by: Stefano Stabellini --- arch/arm/mm/dma-mapping.c | 3 ++- arch/arm/xen/mm.c | 4 ---- arch/arm64/mm/dma-mapping.c | 3 ++- include/xen/arm/hypervisor.h | 2 -- 4 files changed, 4 insertions(+), 8 deletions(-) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 738097396445..2661cad36359 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -35,6 +35,7 @@ #include #include #include +#include #include "dma.h" #include "mm.h" @@ -2360,7 +2361,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, #ifdef CONFIG_XEN if (xen_initial_domain()) - dev->dma_ops = xen_dma_ops; + dev->dma_ops = &xen_swiotlb_dma_ops; #endif dev->archdata.dma_ops_setup = true; } diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index 14210ebdea1a..9b3a6c0ca681 100644 --- a/arch/arm/xen/mm.c +++ b/arch/arm/xen/mm.c @@ -163,16 +163,12 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order) } EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region); -const struct dma_map_ops *xen_dma_ops; -EXPORT_SYMBOL(xen_dma_ops); - int __init xen_mm_init(void) { struct gnttab_cache_flush cflush; if (!xen_initial_domain()) return 0; xen_swiotlb_init(1, false); - xen_dma_ops = &xen_swiotlb_dma_ops; cflush.op = 0; cflush.a.dev_bus_addr = 0; diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index bd2b039f43a6..4b244a037349 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -8,6 +8,7 @@ #include #include #include +#include #include @@ -64,6 +65,6 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, #ifdef CONFIG_XEN if (xen_initial_domain()) - dev->dma_ops = xen_dma_ops; + dev->dma_ops = &xen_swiotlb_dma_ops; #endif } diff --git a/include/xen/arm/hypervisor.h b/include/xen/arm/hypervisor.h index 2982571f7cc1..43ef24dd030e 100644 --- a/include/xen/arm/hypervisor.h +++ b/include/xen/arm/hypervisor.h @@ -19,8 +19,6 @@ static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void) return PARAVIRT_LAZY_NONE; } -extern const struct dma_map_ops *xen_dma_ops; - #ifdef CONFIG_XEN void __init xen_early_init(void); #else