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Sun, 05 Jan 2020 02:56:31 -0800 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 5 Jan 2020 02:47:29 -0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 5 Jan 2020 18:46:35 +0800 Received: from localhost.localdomain (10.15.20.246) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Sun, 5 Jan 2020 18:45:30 +0800 From: Chao Hao To: Joerg Roedel , Rob Herring , "Matthias Brugger" Subject: [PATCH v2 10/19] iommu/mediatek: Remove mtk_iommu_domain_finalise Date: Sun, 5 Jan 2020 18:45:14 +0800 Message-ID: <20200105104523.31006-11-chao.hao@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200105104523.31006-1-chao.hao@mediatek.com> References: <20200105104523.31006-1-chao.hao@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200105_025633_419146_C130F845 X-CRM114-Status: GOOD ( 13.20 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [216.200.240.184 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 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 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: Anan Sun , devicetree@vger.kernel.org, Jun Yan , wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, Chao Hao , iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, Yong Wu , Cui Zhang , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org We already have global mtk_iommu_pgtable structure to describe page table and create it in group_device, "mtk_iommu_domain_finalise" is as the same as that, so so we will remove mtk_iommu_domain_finalise. Signed-off-by: Chao Hao --- drivers/iommu/mtk_iommu.c | 48 ++++++++------------------------------- 1 file changed, 10 insertions(+), 38 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 50c6a01eb517..cfefdd638f1a 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -323,40 +323,6 @@ static void mtk_iommu_config(struct mtk_iommu_data *data, } } -static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom) -{ - struct mtk_iommu_data *data = mtk_iommu_get_m4u_data(); - - if (data->pgtable) { - dom->cfg = data->pgtable->cfg; - dom->iop = data->pgtable->iop; - dom->domain.pgsize_bitmap = data->pgtable->cfg.pgsize_bitmap; - return 0; - } - - dom->cfg = (struct io_pgtable_cfg) { - .quirks = IO_PGTABLE_QUIRK_ARM_NS | - IO_PGTABLE_QUIRK_NO_PERMS | - IO_PGTABLE_QUIRK_TLBI_ON_MAP | - IO_PGTABLE_QUIRK_ARM_MTK_EXT, - .pgsize_bitmap = mtk_iommu_ops.pgsize_bitmap, - .ias = 32, - .oas = 34, - .tlb = &mtk_iommu_flush_ops, - .iommu_dev = data->dev, - }; - - dom->iop = alloc_io_pgtable_ops(ARM_V7S, &dom->cfg, data); - if (!dom->iop) { - dev_err(data->dev, "Failed to alloc io pgtable\n"); - return -EINVAL; - } - - /* Update our support page sizes bitmap */ - dom->domain.pgsize_bitmap = dom->cfg.pgsize_bitmap; - return 0; -} - static struct mtk_iommu_pgtable *create_pgtable(struct mtk_iommu_data *data) { struct mtk_iommu_pgtable *pgtable; @@ -414,11 +380,17 @@ static int mtk_iommu_attach_pgtable(struct mtk_iommu_data *data, static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type) { + struct mtk_iommu_pgtable *pgtable = mtk_iommu_get_pgtable(); struct mtk_iommu_domain *dom; if (type != IOMMU_DOMAIN_DMA) return NULL; + if (!pgtable) { + pr_err("%s, pgtable is not ready\n", __func__); + return NULL; + } + dom = kzalloc(sizeof(*dom), GFP_KERNEL); if (!dom) return NULL; @@ -426,8 +398,10 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type) if (iommu_get_dma_cookie(&dom->domain)) goto free_dom; - if (mtk_iommu_domain_finalise(dom)) - goto put_dma_cookie; + dom->cfg = pgtable->cfg; + dom->iop = pgtable->iop; + /* Update our support page sizes bitmap */ + dom->domain.pgsize_bitmap = pgtable->cfg.pgsize_bitmap; dom->domain.geometry.aperture_start = 0; dom->domain.geometry.aperture_end = DMA_BIT_MASK(32); @@ -435,8 +409,6 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type) return &dom->domain; -put_dma_cookie: - iommu_put_dma_cookie(&dom->domain); free_dom: kfree(dom); return NULL;