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X-UUID: ed6921aaaf3e44569e2117d59d61f7c9-20200105 Received: from mtkexhb02.mediatek.inc [(172.21.101.103)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1008748616; Sun, 05 Jan 2020 18:47:02 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs07n2.mediatek.inc (172.21.101.141) 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 18:45:32 +0800 From: Chao Hao To: Joerg Roedel , Rob Herring , Matthias Brugger Subject: [PATCH v2 11/19] iommu/mediatek: Remove pgtable info in mtk_iommu_domain Date: Sun, 5 Jan 2020 18:45:15 +0800 Message-ID: <20200105104523.31006-12-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 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, Cui Zhang , linux-arm-kernel@lists.infradead.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" This patch will use mtk_iommu_pgtable to replace the part of pgtable in mtk_iommu_domain, so we can remove the information of pgtable in mtk_iommu_domain. Signed-off-by: Chao Hao --- drivers/iommu/mtk_iommu.c | 37 +++++++++++++++++-------------------- 1 file changed, 17 insertions(+), 20 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index cfefdd638f1a..b34bd3abccf8 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -111,9 +111,6 @@ #define MTK_M4U_TO_PORT(id) ((id) & 0x1f) struct mtk_iommu_domain { - struct io_pgtable_cfg cfg; - struct io_pgtable_ops *iop; - struct iommu_domain domain; }; @@ -373,6 +370,10 @@ static int mtk_iommu_attach_pgtable(struct mtk_iommu_data *data, /* binding to pgtable */ data->pgtable = pgtable; + /* update HW settings */ + writel(pgtable->cfg.arm_v7s_cfg.ttbr[0] & MMU_PT_ADDR_MASK, + data->base + REG_MMU_PT_BASE_ADDR); + dev_info(data->dev, "m4u%d attach_pgtable done!\n", data->m4u_id); return 0; @@ -398,8 +399,6 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type) if (iommu_get_dma_cookie(&dom->domain)) goto free_dom; - dom->cfg = pgtable->cfg; - dom->iop = pgtable->iop; /* Update our support page sizes bitmap */ dom->domain.pgsize_bitmap = pgtable->cfg.pgsize_bitmap; @@ -416,11 +415,12 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type) static void mtk_iommu_domain_free(struct iommu_domain *domain) { - struct mtk_iommu_domain *dom = to_mtk_domain(domain); + struct mtk_iommu_pgtable *pgtable = mtk_iommu_get_pgtable(); - free_io_pgtable_ops(dom->iop); iommu_put_dma_cookie(domain); kfree(to_mtk_domain(domain)); + free_io_pgtable_ops(pgtable->iop); + kfree(pgtable); } static int mtk_iommu_attach_device(struct iommu_domain *domain, @@ -433,11 +433,8 @@ static int mtk_iommu_attach_device(struct iommu_domain *domain, return -ENODEV; /* Update the pgtable base address register of the M4U HW */ - if (!data->m4u_dom) { + if (!data->m4u_dom) data->m4u_dom = dom; - writel(dom->cfg.arm_v7s_cfg.ttbr[0] & MMU_PT_ADDR_MASK, - data->base + REG_MMU_PT_BASE_ADDR); - } mtk_iommu_config(data, dev, true); return 0; @@ -457,7 +454,7 @@ static void mtk_iommu_detach_device(struct iommu_domain *domain, static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, size_t size, int prot, gfp_t gfp) { - struct mtk_iommu_domain *dom = to_mtk_domain(domain); + struct mtk_iommu_pgtable *pgtable = mtk_iommu_get_pgtable(); struct mtk_iommu_data *data = mtk_iommu_get_m4u_data(); /* The "4GB mode" M4U physically can not use the lower remap of Dram. */ @@ -465,16 +462,16 @@ static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova, paddr |= BIT_ULL(32); /* Synchronize with the tlb_lock */ - return dom->iop->map(dom->iop, iova, paddr, size, prot); + return pgtable->iop->map(pgtable->iop, iova, paddr, size, prot); } static size_t mtk_iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size, struct iommu_iotlb_gather *gather) { - struct mtk_iommu_domain *dom = to_mtk_domain(domain); + struct mtk_iommu_pgtable *pgtable = mtk_iommu_get_pgtable(); - return dom->iop->unmap(dom->iop, iova, size, gather); + return pgtable->iop->unmap(pgtable->iop, iova, size, gather); } static void mtk_iommu_flush_iotlb_all(struct iommu_domain *domain) @@ -498,11 +495,11 @@ static void mtk_iommu_iotlb_sync(struct iommu_domain *domain, static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) { - struct mtk_iommu_domain *dom = to_mtk_domain(domain); + struct mtk_iommu_pgtable *pgtable = mtk_iommu_get_pgtable(); struct mtk_iommu_data *data = mtk_iommu_get_m4u_data(); phys_addr_t pa; - pa = dom->iop->iova_to_phys(dom->iop, iova); + pa = pgtable->iop->iova_to_phys(pgtable->iop, iova); if (data->enable_4GB && pa >= MTK_IOMMU_4GB_MODE_REMAP_BASE) pa &= ~BIT_ULL(32); @@ -845,8 +842,8 @@ static int __maybe_unused mtk_iommu_suspend(struct device *dev) static int __maybe_unused mtk_iommu_resume(struct device *dev) { struct mtk_iommu_data *data = dev_get_drvdata(dev); + struct mtk_iommu_pgtable *pgtable = data->pgtable; struct mtk_iommu_suspend_reg *reg = &data->reg; - struct mtk_iommu_domain *m4u_dom = data->m4u_dom; void __iomem *base = data->base; int ret; @@ -864,8 +861,8 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev) writel_relaxed(reg->int_main_control, base + REG_MMU_INT_MAIN_CONTROL); writel_relaxed(reg->ivrp_paddr, base + REG_MMU_IVRP_PADDR); writel_relaxed(reg->vld_pa_rng, base + REG_MMU_VLD_PA_RNG); - if (m4u_dom) - writel(m4u_dom->cfg.arm_v7s_cfg.ttbr[0] & MMU_PT_ADDR_MASK, + if (pgtable) + writel(pgtable->cfg.arm_v7s_cfg.ttbr[0] & MMU_PT_ADDR_MASK, base + REG_MMU_PT_BASE_ADDR); return 0; } -- 2.18.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu