From patchwork Wed May 4 11:40:07 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 9012621 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 07C7F9F1D3 for ; Wed, 4 May 2016 11:43:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 15319203A5 for ; Wed, 4 May 2016 11:43:21 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2A7872039D for ; Wed, 4 May 2016 11:43:20 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1axvBq-0002lB-1c; Wed, 04 May 2016 11:42:02 +0000 Received: from mail-wm0-x230.google.com ([2a00:1450:400c:c09::230]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1axvAj-0001Wo-Od for linux-arm-kernel@lists.infradead.org; Wed, 04 May 2016 11:40:56 +0000 Received: by mail-wm0-x230.google.com with SMTP id a17so88934030wme.0 for ; Wed, 04 May 2016 04:40:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=66Jc6C2dE0cc5iCOAGqTeuOVX+KyAvUJr1xSBfU7CqE=; b=cNQxgmh5PZWIsBdFyqvxSbr6OrYzvtVjPVno2162SH7H8fGULdqVACZ/iX8KqG0CIU 5IonrG4WFxhbG1BVqvhjR3DewxYttW8PZdQF+Gs6/H0M6Y3ufR1oxTFY5yl5cgR26PLW mDb5fcu7NTt1FXyXZzv5Ys/6Nd5fm2S2E5ntI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=66Jc6C2dE0cc5iCOAGqTeuOVX+KyAvUJr1xSBfU7CqE=; b=mMSsd8vl4xYu1NJnfBkmE65WKzLzjOONZO1tdNF9RBI5Bg3fk7LlhyUK31OJ/QEVgN MqhiNF5hieNrTMXUQB9YbCgiBXvJdnsvnb1PvBTZvaxpDfA+6DJjbhNh7qwlEHu+2M+/ rGk2GvhsMdI34NNRVLD8/rKiqN5o6lO/Zi9W3crIn4GDR/omuiU6jq+Bb66XZ5OUZ55Q EOUANmNkGAGSOyn+BVmS4hAuMhggArewMlKGLhYisZm9COSvj66mLo6hGvxyqnjXi24Y 39h7PDsbx0w/7KGXSMHJzy3Mcvf/BoP8K7i0aHnclbMurrevlZ9qDiSs+s+VFuFqxenH fPKw== X-Gm-Message-State: AOPr4FWjbUavBdIyQpocoO0wlqmWDitOtUjxRJkoGZVCI7vvOQsCO3h1/ZHJyXZTfeYfXCq/ X-Received: by 10.28.227.138 with SMTP id a132mr29255186wmh.35.1462362032135; Wed, 04 May 2016 04:40:32 -0700 (PDT) Received: from new-host-61.home (LMontsouris-657-1-37-90.w80-11.abo.wanadoo.fr. [80.11.198.90]) by smtp.gmail.com with ESMTPSA id u6sm3766963wjh.2.2016.05.04.04.40.30 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 04 May 2016 04:40:30 -0700 (PDT) From: Eric Auger To: eric.auger@st.com, eric.auger@linaro.org, robin.murphy@arm.com, alex.williamson@redhat.com, will.deacon@arm.com, joro@8bytes.org, tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com, christoffer.dall@linaro.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v9 8/8] iommu/arm-smmu: get/put the msi cookie Date: Wed, 4 May 2016 11:40:07 +0000 Message-Id: <1462362007-2753-9-git-send-email-eric.auger@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1462362007-2753-1-git-send-email-eric.auger@linaro.org> References: <1462362007-2753-1-git-send-email-eric.auger@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160504_044054_075953_7F537E63 X-CRM114-Status: GOOD ( 13.77 ) X-Spam-Score: -2.7 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: julien.grall@arm.com, patches@linaro.org, Jean-Philippe.Brucker@arm.com, p.fedin@samsung.com, linux-kernel@vger.kernel.org, Bharat.Bhushan@freescale.com, iommu@lists.linux-foundation.org, pranav.sawargaonkar@gmail.com, yehuday@marvell.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-6.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP For IOMMU_DOMAIN_UNMANAGED type we now also get the msi cookie in both arm-smmu and arm-smmu-v3. This initializes resources for MSI doorbell mapping. Signed-off-by: Eric Auger --- drivers/iommu/arm-smmu-v3.c | 16 ++++++++++++---- drivers/iommu/arm-smmu.c | 15 +++++++++++---- 2 files changed, 23 insertions(+), 8 deletions(-) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index bf222b5..b5d9826 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -22,6 +22,7 @@ #include #include +#include #include #include #include @@ -1411,15 +1412,21 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) return NULL; if (type == IOMMU_DOMAIN_DMA && - iommu_get_dma_cookie(&smmu_domain->domain)) { - kfree(smmu_domain); - return NULL; - } + iommu_get_dma_cookie(&smmu_domain->domain)) + goto err; + + if (type == IOMMU_DOMAIN_UNMANAGED && + iommu_get_msi_cookie(&smmu_domain->domain)) + goto err; + smmu_domain->domain.msi_geometry = msi_geometry; mutex_init(&smmu_domain->init_mutex); spin_lock_init(&smmu_domain->pgtbl_lock); return &smmu_domain->domain; +err: + kfree(smmu_domain); + return NULL; } static int arm_smmu_bitmap_alloc(unsigned long *map, int span) @@ -1445,6 +1452,7 @@ static void arm_smmu_domain_free(struct iommu_domain *domain) struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); struct arm_smmu_device *smmu = smmu_domain->smmu; + iommu_put_msi_cookie(domain); iommu_put_dma_cookie(domain); free_io_pgtable_ops(smmu_domain->pgtbl_ops); diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 55f429d..0908985 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -30,6 +30,7 @@ #include #include +#include #include #include #include @@ -990,10 +991,12 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) return NULL; if (type == IOMMU_DOMAIN_DMA && - iommu_get_dma_cookie(&smmu_domain->domain)) { - kfree(smmu_domain); - return NULL; - } + iommu_get_dma_cookie(&smmu_domain->domain)) + goto err; + + if (type == IOMMU_DOMAIN_UNMANAGED && + iommu_get_msi_cookie(&smmu_domain->domain)) + goto err; smmu_domain->domain.msi_geometry = msi_geometry; @@ -1001,6 +1004,9 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) spin_lock_init(&smmu_domain->pgtbl_lock); return &smmu_domain->domain; +err: + kfree(smmu_domain); + return NULL; } static void arm_smmu_domain_free(struct iommu_domain *domain) @@ -1011,6 +1017,7 @@ static void arm_smmu_domain_free(struct iommu_domain *domain) * Free the domain resources. We assume that all devices have * already been detached. */ + iommu_put_msi_cookie(domain); iommu_put_dma_cookie(domain); arm_smmu_destroy_domain_context(domain); kfree(smmu_domain);