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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 0EFA7C4338F for ; Wed, 4 Aug 2021 17:17:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E79D660E53 for ; Wed, 4 Aug 2021 17:17:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239800AbhHDRRi (ORCPT ); Wed, 4 Aug 2021 13:17:38 -0400 Received: from foss.arm.com ([217.140.110.172]:35322 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239965AbhHDRRL (ORCPT ); Wed, 4 Aug 2021 13:17:11 -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 410FD1063; Wed, 4 Aug 2021 10:16:58 -0700 (PDT) Received: from 010265703453.arm.com (unknown [10.57.36.146]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 83E653F66F; Wed, 4 Aug 2021 10:16:56 -0700 (PDT) From: Robin Murphy To: joro@8bytes.org, will@kernel.org Cc: iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, suravee.suthikulpanit@amd.com, baolu.lu@linux.intel.com, john.garry@huawei.com, dianders@chromium.org, rajatja@google.com, chenxiang66@hisilicon.com Subject: [PATCH v3 24/25] iommu/dma: Factor out flush queue init Date: Wed, 4 Aug 2021 18:15:52 +0100 Message-Id: <3b5284ee394f267ba966839173f874fc9a996bb2.1628094601.git.robin.murphy@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Factor out flush queue setup from the initial domain init so that we can potentially trigger it from sysfs later on in a domain's lifetime. Reviewed-by: Lu Baolu Reviewed-by: John Garry Signed-off-by: Robin Murphy --- drivers/iommu/dma-iommu.c | 30 ++++++++++++++++++++---------- include/linux/dma-iommu.h | 9 ++++++--- 2 files changed, 26 insertions(+), 13 deletions(-) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index 2e19505dddf9..f51b8dc99ac6 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -310,6 +310,25 @@ static bool dev_is_untrusted(struct device *dev) return dev_is_pci(dev) && to_pci_dev(dev)->untrusted; } +int iommu_dma_init_fq(struct iommu_domain *domain) +{ + struct iommu_dma_cookie *cookie = domain->iova_cookie; + + if (domain->type != IOMMU_DOMAIN_DMA_FQ) + return -EINVAL; + if (cookie->fq_domain) + return 0; + + if (init_iova_flush_queue(&cookie->iovad, iommu_dma_flush_iotlb_all, + iommu_dma_entry_dtor)) { + pr_warn("iova flush queue initialization failed\n"); + domain->type = IOMMU_DOMAIN_DMA; + return -ENODEV; + } + cookie->fq_domain = domain; + return 0; +} + /** * iommu_dma_init_domain - Initialise a DMA mapping domain * @domain: IOMMU domain previously prepared by iommu_get_dma_cookie() @@ -362,16 +381,7 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, } init_iova_domain(iovad, 1UL << order, base_pfn); - - if (domain->type == IOMMU_DOMAIN_DMA_FQ && !cookie->fq_domain) { - if (init_iova_flush_queue(iovad, iommu_dma_flush_iotlb_all, - iommu_dma_entry_dtor)) { - pr_warn("iova flush queue initialization failed\n"); - domain->type = IOMMU_DOMAIN_DMA; - } else { - cookie->fq_domain = domain; - } - } + iommu_dma_init_fq(domain); return iova_reserve_iommu_regions(dev, domain); } diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 758ca4694257..81ab647f1618 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -20,6 +20,7 @@ void iommu_put_dma_cookie(struct iommu_domain *domain); /* Setup call for arch DMA mapping code */ void iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 dma_limit); +int iommu_dma_init_fq(struct iommu_domain *domain); /* The DMA API isn't _quite_ the whole story, though... */ /* @@ -37,9 +38,6 @@ void iommu_dma_compose_msi_msg(struct msi_desc *desc, void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list); -void iommu_dma_free_cpu_cached_iovas(unsigned int cpu, - struct iommu_domain *domain); - extern bool iommu_dma_forcedac; #else /* CONFIG_IOMMU_DMA */ @@ -54,6 +52,11 @@ static inline void iommu_setup_dma_ops(struct device *dev, u64 dma_base, { } +static inline int iommu_dma_init_fq(struct iommu_domain *domain) +{ + return -EINVAL; +} + static inline int iommu_get_dma_cookie(struct iommu_domain *domain) { return -ENODEV; -- 2.25.1 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 25B36C4320A for ; Wed, 4 Aug 2021 17:17:02 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (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 E2BE860E53 for ; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Factor out flush queue setup from the initial domain init so that we can potentially trigger it from sysfs later on in a domain's lifetime. Reviewed-by: Lu Baolu Reviewed-by: John Garry Signed-off-by: Robin Murphy --- drivers/iommu/dma-iommu.c | 30 ++++++++++++++++++++---------- include/linux/dma-iommu.h | 9 ++++++--- 2 files changed, 26 insertions(+), 13 deletions(-) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index 2e19505dddf9..f51b8dc99ac6 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -310,6 +310,25 @@ static bool dev_is_untrusted(struct device *dev) return dev_is_pci(dev) && to_pci_dev(dev)->untrusted; } +int iommu_dma_init_fq(struct iommu_domain *domain) +{ + struct iommu_dma_cookie *cookie = domain->iova_cookie; + + if (domain->type != IOMMU_DOMAIN_DMA_FQ) + return -EINVAL; + if (cookie->fq_domain) + return 0; + + if (init_iova_flush_queue(&cookie->iovad, iommu_dma_flush_iotlb_all, + iommu_dma_entry_dtor)) { + pr_warn("iova flush queue initialization failed\n"); + domain->type = IOMMU_DOMAIN_DMA; + return -ENODEV; + } + cookie->fq_domain = domain; + return 0; +} + /** * iommu_dma_init_domain - Initialise a DMA mapping domain * @domain: IOMMU domain previously prepared by iommu_get_dma_cookie() @@ -362,16 +381,7 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, } init_iova_domain(iovad, 1UL << order, base_pfn); - - if (domain->type == IOMMU_DOMAIN_DMA_FQ && !cookie->fq_domain) { - if (init_iova_flush_queue(iovad, iommu_dma_flush_iotlb_all, - iommu_dma_entry_dtor)) { - pr_warn("iova flush queue initialization failed\n"); - domain->type = IOMMU_DOMAIN_DMA; - } else { - cookie->fq_domain = domain; - } - } + iommu_dma_init_fq(domain); return iova_reserve_iommu_regions(dev, domain); } diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 758ca4694257..81ab647f1618 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -20,6 +20,7 @@ void iommu_put_dma_cookie(struct iommu_domain *domain); /* Setup call for arch DMA mapping code */ void iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 dma_limit); +int iommu_dma_init_fq(struct iommu_domain *domain); /* The DMA API isn't _quite_ the whole story, though... */ /* @@ -37,9 +38,6 @@ void iommu_dma_compose_msi_msg(struct msi_desc *desc, void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list); -void iommu_dma_free_cpu_cached_iovas(unsigned int cpu, - struct iommu_domain *domain); - extern bool iommu_dma_forcedac; #else /* CONFIG_IOMMU_DMA */ @@ -54,6 +52,11 @@ static inline void iommu_setup_dma_ops(struct device *dev, u64 dma_base, { } +static inline int iommu_dma_init_fq(struct iommu_domain *domain) +{ + return -EINVAL; +} + static inline int iommu_get_dma_cookie(struct iommu_domain *domain) { return -ENODEV; -- 2.25.1 _______________________________________________ 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=-17.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 A20CAC4338F for ; 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Wed, 4 Aug 2021 10:16:56 -0700 (PDT) From: Robin Murphy To: joro@8bytes.org, will@kernel.org Cc: iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, suravee.suthikulpanit@amd.com, baolu.lu@linux.intel.com, john.garry@huawei.com, dianders@chromium.org, rajatja@google.com, chenxiang66@hisilicon.com Subject: [PATCH v3 24/25] iommu/dma: Factor out flush queue init Date: Wed, 4 Aug 2021 18:15:52 +0100 Message-Id: <3b5284ee394f267ba966839173f874fc9a996bb2.1628094601.git.robin.murphy@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210804_101658_913934_CDC27253 X-CRM114-Status: GOOD ( 12.89 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Factor out flush queue setup from the initial domain init so that we can potentially trigger it from sysfs later on in a domain's lifetime. Reviewed-by: Lu Baolu Reviewed-by: John Garry Signed-off-by: Robin Murphy --- drivers/iommu/dma-iommu.c | 30 ++++++++++++++++++++---------- include/linux/dma-iommu.h | 9 ++++++--- 2 files changed, 26 insertions(+), 13 deletions(-) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index 2e19505dddf9..f51b8dc99ac6 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -310,6 +310,25 @@ static bool dev_is_untrusted(struct device *dev) return dev_is_pci(dev) && to_pci_dev(dev)->untrusted; } +int iommu_dma_init_fq(struct iommu_domain *domain) +{ + struct iommu_dma_cookie *cookie = domain->iova_cookie; + + if (domain->type != IOMMU_DOMAIN_DMA_FQ) + return -EINVAL; + if (cookie->fq_domain) + return 0; + + if (init_iova_flush_queue(&cookie->iovad, iommu_dma_flush_iotlb_all, + iommu_dma_entry_dtor)) { + pr_warn("iova flush queue initialization failed\n"); + domain->type = IOMMU_DOMAIN_DMA; + return -ENODEV; + } + cookie->fq_domain = domain; + return 0; +} + /** * iommu_dma_init_domain - Initialise a DMA mapping domain * @domain: IOMMU domain previously prepared by iommu_get_dma_cookie() @@ -362,16 +381,7 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, } init_iova_domain(iovad, 1UL << order, base_pfn); - - if (domain->type == IOMMU_DOMAIN_DMA_FQ && !cookie->fq_domain) { - if (init_iova_flush_queue(iovad, iommu_dma_flush_iotlb_all, - iommu_dma_entry_dtor)) { - pr_warn("iova flush queue initialization failed\n"); - domain->type = IOMMU_DOMAIN_DMA; - } else { - cookie->fq_domain = domain; - } - } + iommu_dma_init_fq(domain); return iova_reserve_iommu_regions(dev, domain); } diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 758ca4694257..81ab647f1618 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -20,6 +20,7 @@ void iommu_put_dma_cookie(struct iommu_domain *domain); /* Setup call for arch DMA mapping code */ void iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 dma_limit); +int iommu_dma_init_fq(struct iommu_domain *domain); /* The DMA API isn't _quite_ the whole story, though... */ /* @@ -37,9 +38,6 @@ void iommu_dma_compose_msi_msg(struct msi_desc *desc, void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list); -void iommu_dma_free_cpu_cached_iovas(unsigned int cpu, - struct iommu_domain *domain); - extern bool iommu_dma_forcedac; #else /* CONFIG_IOMMU_DMA */ @@ -54,6 +52,11 @@ static inline void iommu_setup_dma_ops(struct device *dev, u64 dma_base, { } +static inline int iommu_dma_init_fq(struct iommu_domain *domain) +{ + return -EINVAL; +} + static inline int iommu_get_dma_cookie(struct iommu_domain *domain) { return -ENODEV; -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel