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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 9EA68C433DF for ; Thu, 20 Aug 2020 15:11:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7AB442086A for ; Thu, 20 Aug 2020 15:11:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728790AbgHTPJw (ORCPT ); Thu, 20 Aug 2020 11:09:52 -0400 Received: from foss.arm.com ([217.140.110.172]:41146 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728757AbgHTPJk (ORCPT ); Thu, 20 Aug 2020 11:09:40 -0400 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 81AC414BF; Thu, 20 Aug 2020 08:09:39 -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 DFEF43F6CF; Thu, 20 Aug 2020 08:09:35 -0700 (PDT) From: Robin Murphy To: hch@lst.de, joro@8bytes.org, linux@armlinux.org.uk Cc: will@kernel.org, inki.dae@samsung.com, sw0312.kim@samsung.com, kyungmin.park@samsung.com, m.szyprowski@samsung.com, agross@kernel.org, bjorn.andersson@linaro.org, thierry.reding@gmail.com, jonathanh@nvidia.com, vdumpa@nvidia.com, digetx@gmail.com, matthias.bgg@gmail.com, yong.wu@mediatek.com, geert+renesas@glider.be, magnus.damm@gmail.com, t-kristo@ti.com, s-anna@ti.com, laurent.pinchart@ideasonboard.com, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, linux-samsung-soc@vger.kernel.org, linux-tegra@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mediatek@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 12/18] iommu/tegra-gart: Add IOMMU_DOMAIN_DMA support Date: Thu, 20 Aug 2020 16:08:31 +0100 Message-Id: <516b33118d489e56499ff8c64c019709b744110c.1597931876.git.robin.murphy@arm.com> X-Mailer: git-send-email 2.28.0.dirty In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Now that arch/arm is wired up for default domains and iommu-dma, implement the corresponding driver-side support for DMA domains. Signed-off-by: Robin Murphy --- drivers/iommu/tegra-gart.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index fac720273889..e081387080f6 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -9,6 +9,7 @@ #define dev_fmt(fmt) "gart: " fmt +#include #include #include #include @@ -145,16 +146,22 @@ static struct iommu_domain *gart_iommu_domain_alloc(unsigned type) { struct iommu_domain *domain; - if (type != IOMMU_DOMAIN_UNMANAGED) + if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA) return NULL; domain = kzalloc(sizeof(*domain), GFP_KERNEL); - if (domain) { - domain->geometry.aperture_start = gart_handle->iovmm_base; - domain->geometry.aperture_end = gart_handle->iovmm_end - 1; - domain->geometry.force_aperture = true; + if (!domain) + return NULL; + + if (type == IOMMU_DOMAIN_DMA && iommu_get_dma_cookie(domain)) { + kfree(domain); + return NULL; } + domain->geometry.aperture_start = gart_handle->iovmm_base; + domain->geometry.aperture_end = gart_handle->iovmm_end - 1; + domain->geometry.force_aperture = true; + return domain; } -- 2.28.0.dirty 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 BEA74C433E3 for ; Thu, 20 Aug 2020 15:09:44 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 8F882208C7 for ; Thu, 20 Aug 2020 15:09:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F882208C7 Authentication-Results: mail.kernel.org; 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Thu, 20 Aug 2020 15:09:41 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 8FE7B87F72 for ; Thu, 20 Aug 2020 15:09:41 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3unr0R38gb4H for ; Thu, 20 Aug 2020 15:09:40 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by whitealder.osuosl.org (Postfix) with ESMTP id 4F6F687F3E for ; Thu, 20 Aug 2020 15:09:40 +0000 (UTC) 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 81AC414BF; Thu, 20 Aug 2020 08:09:39 -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 DFEF43F6CF; Thu, 20 Aug 2020 08:09:35 -0700 (PDT) From: Robin Murphy To: hch@lst.de, joro@8bytes.org, linux@armlinux.org.uk Subject: [PATCH 12/18] iommu/tegra-gart: Add IOMMU_DOMAIN_DMA support Date: Thu, 20 Aug 2020 16:08:31 +0100 Message-Id: <516b33118d489e56499ff8c64c019709b744110c.1597931876.git.robin.murphy@arm.com> X-Mailer: git-send-email 2.28.0.dirty In-Reply-To: References: MIME-Version: 1.0 Cc: geert+renesas@glider.be, dri-devel@lists.freedesktop.org, matthias.bgg@gmail.com, thierry.reding@gmail.com, laurent.pinchart@ideasonboard.com, digetx@gmail.com, will@kernel.org, linux-samsung-soc@vger.kernel.org, magnus.damm@gmail.com, kyungmin.park@samsung.com, jonathanh@nvidia.com, agross@kernel.org, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, inki.dae@samsung.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 X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Now that arch/arm is wired up for default domains and iommu-dma, implement the corresponding driver-side support for DMA domains. Signed-off-by: Robin Murphy --- drivers/iommu/tegra-gart.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index fac720273889..e081387080f6 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -9,6 +9,7 @@ #define dev_fmt(fmt) "gart: " fmt +#include #include #include #include @@ -145,16 +146,22 @@ static struct iommu_domain *gart_iommu_domain_alloc(unsigned type) { struct iommu_domain *domain; - if (type != IOMMU_DOMAIN_UNMANAGED) + if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA) return NULL; domain = kzalloc(sizeof(*domain), GFP_KERNEL); - if (domain) { - domain->geometry.aperture_start = gart_handle->iovmm_base; - domain->geometry.aperture_end = gart_handle->iovmm_end - 1; - domain->geometry.force_aperture = true; + if (!domain) + return NULL; + + if (type == IOMMU_DOMAIN_DMA && iommu_get_dma_cookie(domain)) { + kfree(domain); + return NULL; } + domain->geometry.aperture_start = gart_handle->iovmm_base; + domain->geometry.aperture_end = gart_handle->iovmm_end - 1; + domain->geometry.force_aperture = true; + return domain; } -- 2.28.0.dirty _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu 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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 67BBEC433E1 for ; Thu, 20 Aug 2020 15:12:26 +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 2A2382086A for ; 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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k8mEg-00048n-Lr; Thu, 20 Aug 2020 15:12:14 +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 1k8mCC-0002Pb-K4; Thu, 20 Aug 2020 15:09:52 +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 81AC414BF; Thu, 20 Aug 2020 08:09:39 -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 DFEF43F6CF; Thu, 20 Aug 2020 08:09:35 -0700 (PDT) From: Robin Murphy To: hch@lst.de, joro@8bytes.org, linux@armlinux.org.uk Subject: [PATCH 12/18] iommu/tegra-gart: Add IOMMU_DOMAIN_DMA support Date: Thu, 20 Aug 2020 16:08:31 +0100 Message-Id: <516b33118d489e56499ff8c64c019709b744110c.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_110941_053520_258388D3 X-CRM114-Status: GOOD ( 15.92 ) 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Now that arch/arm is wired up for default domains and iommu-dma, implement the corresponding driver-side support for DMA domains. Signed-off-by: Robin Murphy --- drivers/iommu/tegra-gart.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index fac720273889..e081387080f6 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -9,6 +9,7 @@ #define dev_fmt(fmt) "gart: " fmt +#include #include #include #include @@ -145,16 +146,22 @@ static struct iommu_domain *gart_iommu_domain_alloc(unsigned type) { struct iommu_domain *domain; - if (type != IOMMU_DOMAIN_UNMANAGED) + if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA) return NULL; domain = kzalloc(sizeof(*domain), GFP_KERNEL); - if (domain) { - domain->geometry.aperture_start = gart_handle->iovmm_base; - domain->geometry.aperture_end = gart_handle->iovmm_end - 1; - domain->geometry.force_aperture = true; + if (!domain) + return NULL; + + if (type == IOMMU_DOMAIN_DMA && iommu_get_dma_cookie(domain)) { + kfree(domain); + return NULL; } + domain->geometry.aperture_start = gart_handle->iovmm_base; + domain->geometry.aperture_end = gart_handle->iovmm_end - 1; + domain->geometry.force_aperture = true; + return domain; } -- 2.28.0.dirty _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek 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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 7CE15C433E3 for ; Thu, 20 Aug 2020 15:13:37 +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 32D19208C7 for ; 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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k8mEQ-0003w6-5P; Thu, 20 Aug 2020 15:11:58 +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 1k8mCC-0002Pb-K4; Thu, 20 Aug 2020 15:09:52 +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 81AC414BF; Thu, 20 Aug 2020 08:09:39 -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 DFEF43F6CF; Thu, 20 Aug 2020 08:09:35 -0700 (PDT) From: Robin Murphy To: hch@lst.de, joro@8bytes.org, linux@armlinux.org.uk Subject: [PATCH 12/18] iommu/tegra-gart: Add IOMMU_DOMAIN_DMA support Date: Thu, 20 Aug 2020 16:08:31 +0100 Message-Id: <516b33118d489e56499ff8c64c019709b744110c.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_110941_053520_258388D3 X-CRM114-Status: GOOD ( 15.92 ) X-BeenThere: linux-arm-kernel@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, 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, 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Now that arch/arm is wired up for default domains and iommu-dma, implement the corresponding driver-side support for DMA domains. Signed-off-by: Robin Murphy --- drivers/iommu/tegra-gart.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index fac720273889..e081387080f6 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -9,6 +9,7 @@ #define dev_fmt(fmt) "gart: " fmt +#include #include #include #include @@ -145,16 +146,22 @@ static struct iommu_domain *gart_iommu_domain_alloc(unsigned type) { struct iommu_domain *domain; - if (type != IOMMU_DOMAIN_UNMANAGED) + if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA) return NULL; domain = kzalloc(sizeof(*domain), GFP_KERNEL); - if (domain) { - domain->geometry.aperture_start = gart_handle->iovmm_base; - domain->geometry.aperture_end = gart_handle->iovmm_end - 1; - domain->geometry.force_aperture = true; + if (!domain) + return NULL; + + if (type == IOMMU_DOMAIN_DMA && iommu_get_dma_cookie(domain)) { + kfree(domain); + return NULL; } + domain->geometry.aperture_start = gart_handle->iovmm_base; + domain->geometry.aperture_end = gart_handle->iovmm_end - 1; + domain->geometry.force_aperture = true; + return domain; } -- 2.28.0.dirty _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 20078C433E4 for ; Thu, 20 Aug 2020 15:09:42 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 D790D208C7 for ; Thu, 20 Aug 2020 15:09:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D790D208C7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2FA426E964; Thu, 20 Aug 2020 15:09:41 +0000 (UTC) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by gabe.freedesktop.org (Postfix) with ESMTP id 2210F6E964 for ; Thu, 20 Aug 2020 15:09:40 +0000 (UTC) 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 81AC414BF; Thu, 20 Aug 2020 08:09:39 -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 DFEF43F6CF; Thu, 20 Aug 2020 08:09:35 -0700 (PDT) From: Robin Murphy To: hch@lst.de, joro@8bytes.org, linux@armlinux.org.uk Subject: [PATCH 12/18] iommu/tegra-gart: Add IOMMU_DOMAIN_DMA support Date: Thu, 20 Aug 2020 16:08:31 +0100 Message-Id: <516b33118d489e56499ff8c64c019709b744110c.1597931876.git.robin.murphy@arm.com> X-Mailer: git-send-email 2.28.0.dirty In-Reply-To: References: MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development 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, 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Now that arch/arm is wired up for default domains and iommu-dma, implement the corresponding driver-side support for DMA domains. Signed-off-by: Robin Murphy --- drivers/iommu/tegra-gart.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index fac720273889..e081387080f6 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -9,6 +9,7 @@ #define dev_fmt(fmt) "gart: " fmt +#include #include #include #include @@ -145,16 +146,22 @@ static struct iommu_domain *gart_iommu_domain_alloc(unsigned type) { struct iommu_domain *domain; - if (type != IOMMU_DOMAIN_UNMANAGED) + if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA) return NULL; domain = kzalloc(sizeof(*domain), GFP_KERNEL); - if (domain) { - domain->geometry.aperture_start = gart_handle->iovmm_base; - domain->geometry.aperture_end = gart_handle->iovmm_end - 1; - domain->geometry.force_aperture = true; + if (!domain) + return NULL; + + if (type == IOMMU_DOMAIN_DMA && iommu_get_dma_cookie(domain)) { + kfree(domain); + return NULL; } + domain->geometry.aperture_start = gart_handle->iovmm_base; + domain->geometry.aperture_end = gart_handle->iovmm_end - 1; + domain->geometry.force_aperture = true; + return domain; } -- 2.28.0.dirty _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel