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Date: Mon, 11 Jan 2021 19:19:04 +0800 From: Yong Wu <yong.wu@...iatek.com> To: Joerg Roedel <joro@...tes.org>, Rob Herring <robh+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>, Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com> CC: Krzysztof Kozlowski <krzk@...nel.org>, Evan Green <evgreen@...omium.org>, Tomasz Figa <tfiga@...gle.com>, <linux-mediatek@...ts.infradead.org>, <srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <iommu@...ts.linux-foundation.org>, <yong.wu@...iatek.com>, <youlin.pei@...iatek.com>, Nicolas Boichat <drinkcat@...omium.org>, <anan.sun@...iatek.com>, <chao.hao@...iatek.com> Subject: [PATCH v6 23/33] iommu/mediatek: Adjust the structure Add "struct mtk_iommu_data *" in the "struct mtk_iommu_domain", reduce the call mtk_iommu_get_m4u_data(). No functional change. Signed-off-by: Yong Wu <yong.wu@...iatek.com> --- drivers/iommu/mtk_iommu.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index f3666b0d7577..f1941608ccb7 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -126,6 +126,7 @@ struct mtk_iommu_domain { struct io_pgtable_cfg cfg; struct io_pgtable_ops *iop; + struct mtk_iommu_data *data; struct iommu_domain domain; }; @@ -351,6 +352,7 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom) return -EINVAL; } + dom->data = data; /* Update our support page sizes bitmap */ dom->domain.pgsize_bitmap = dom->cfg.pgsize_bitmap; return 0; @@ -442,10 +444,9 @@ 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_data *data = mtk_iommu_get_m4u_data(); /* The "4GB mode" M4U physically can not use the lower remap of Dram. */ - if (data->enable_4GB) + if (dom->data->enable_4GB) paddr |= BIT_ULL(32); /* Synchronize with the tlb_lock */ @@ -468,36 +469,37 @@ static size_t mtk_iommu_unmap(struct iommu_domain *domain, static void mtk_iommu_flush_iotlb_all(struct iommu_domain *domain) { - mtk_iommu_tlb_flush_all(mtk_iommu_get_m4u_data()); + struct mtk_iommu_domain *dom = to_mtk_domain(domain); + + mtk_iommu_tlb_flush_all(dom->data); } static void mtk_iommu_iotlb_sync(struct iommu_domain *domain, struct iommu_iotlb_gather *gather) { - struct mtk_iommu_data *data = mtk_iommu_get_m4u_data(); + struct mtk_iommu_domain *dom = to_mtk_domain(domain); size_t length = gather->end - gather->start + 1; mtk_iommu_tlb_flush_range_sync(gather->start, length, gather->pgsize, - data); + dom->data); } static void mtk_iommu_sync_map(struct iommu_domain *domain, unsigned long iova, size_t size) { - struct mtk_iommu_data *data = mtk_iommu_get_m4u_data(); + struct mtk_iommu_domain *dom = to_mtk_domain(domain); - mtk_iommu_tlb_flush_range_sync(iova, size, size, data); + mtk_iommu_tlb_flush_range_sync(iova, size, size, dom->data); } 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_data *data = mtk_iommu_get_m4u_data(); phys_addr_t pa; pa = dom->iop->iova_to_phys(dom->iop, iova); - if (data->enable_4GB && pa >= MTK_IOMMU_4GB_MODE_REMAP_BASE) + if (dom->data->enable_4GB && pa >= MTK_IOMMU_4GB_MODE_REMAP_BASE) pa &= ~BIT_ULL(32); return pa; -- 2.18.0
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