From patchwork Thu Aug 20 15:08:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Murphy X-Patchwork-Id: 11726635 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 27B5D109B for ; Thu, 20 Aug 2020 15:12:45 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 ECB932086A for ; Thu, 20 Aug 2020 15:12:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="HjmF56tT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ECB932086A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ZwjtS2UMWZt0oT09BM+6d/AyiGOrNDUZ9h8rgsRXJS8=; b=HjmF56tTbsDiYDw4aq9C1yZJH gNZS/CYTX10Q8t/UjRzotCepAvy4ARg2MY9ug/6ifdotvfGwc0BFQxb8Ws7tU02HDkqEdB5zWNS7Q 6pUrlT4LFjuJL5CodSGgznMFON4VrX2Qjx69z+0IpRUsaoetErVuTePWfw3XNqrWNiOjl66fzTnOp /hMEC8I3jvm9JjO+issbwKTbTTD00kQLEY4TX4SfbhIJKheRqcFI9H57B6f34JSdrVOWb+EpGo9KV QAD9SUfsIMIJhNU2NgW5/YYDd5UbbF8ekYT9njP1A9p9JNgK7hgn2E7eNNeoxAMo2yDkg0uZTiKRh bZZPf42Ng==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k8mF6-0004UJ-H1; Thu, 20 Aug 2020 15:12:40 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k8mCN-0002WJ-Sy; Thu, 20 Aug 2020 15:10:02 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D724B1516; Thu, 20 Aug 2020 08:09:50 -0700 (PDT) Received: from e121345-lin.cambridge.arm.com (e121345-lin.cambridge.arm.com [10.1.196.37]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 48CAB3F6CF; Thu, 20 Aug 2020 08:09:47 -0700 (PDT) From: Robin Murphy To: hch@lst.de, joro@8bytes.org, linux@armlinux.org.uk Subject: [PATCH 15/18] drm/nouveau/tegra: Clean up IOMMU workaround Date: Thu, 20 Aug 2020 16:08:34 +0100 Message-Id: <21d8d42edb9f91e62f9c72875cf2210afacff18c.1597931876.git.robin.murphy@arm.com> X-Mailer: git-send-email 2.28.0.dirty In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200820_110952_179190_323F0B66 X-CRM114-Status: GOOD ( 12.52 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: geert+renesas@glider.be, dri-devel@lists.freedesktop.org, bjorn.andersson@linaro.org, matthias.bgg@gmail.com, thierry.reding@gmail.com, laurent.pinchart@ideasonboard.com, digetx@gmail.com, s-anna@ti.com, will@kernel.org, m.szyprowski@samsung.com, linux-samsung-soc@vger.kernel.org, magnus.damm@gmail.com, kyungmin.park@samsung.com, jonathanh@nvidia.com, agross@kernel.org, yong.wu@mediatek.com, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, inki.dae@samsung.com, vdumpa@nvidia.com, linux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org, sw0312.kim@samsung.com, linux-kernel@vger.kernel.org, t-kristo@ti.com, iommu@lists.linux-foundation.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org Now that arch/arm is wired up for default domains and iommu-dma, we no longer need to work around the arch-private mapping. Signed-off-by: Robin Murphy --- drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c index d0d52c1d4aee..410ee1f83e0b 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -23,10 +23,6 @@ #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER #include "priv.h" -#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) -#include -#endif - static int nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev) { @@ -109,15 +105,6 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev) unsigned long pgsize_bitmap; int ret; -#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) - if (dev->archdata.mapping) { - struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); - - arm_iommu_detach_device(dev); - arm_iommu_release_mapping(mapping); - } -#endif - if (!tdev->func->iommu_bit) return;