From 9bdfe4c175c8a9ea4959f7ad087e3d66d3917bc8 Mon Sep 17 00:00:00 2001 From: Yong Wu Date: Mon, 11 Jan 2021 19:18:56 +0800 Subject: [PATCH] iommu/mediatek: Update oas for v7s This patch only updates oas in different SoCs. If the SoC supports 4GB-mode and current dram size is 4GB, the oas is 33. otherwise, it's still 32. In the lastest SoC, the oas is 35bits. Signed-off-by: Yong Wu Reviewed-by: Tomasz Figa Link: https://lore.kernel.org/r/20210111111914.22211-16-yong.wu@mediatek.com Signed-off-by: Will Deacon --- drivers/iommu/mtk_iommu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index bf1277d581210..1c4af574f5f74 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -301,10 +301,14 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom) IO_PGTABLE_QUIRK_ARM_MTK_EXT, .pgsize_bitmap = mtk_iommu_ops.pgsize_bitmap, .ias = MTK_IOMMU_HAS_FLAG(data->plat_data, IOVA_34_EN) ? 34 : 32, - .oas = 35, .iommu_dev = data->dev, }; + if (MTK_IOMMU_HAS_FLAG(data->plat_data, HAS_4GB_MODE)) + dom->cfg.oas = data->enable_4GB ? 33 : 32; + else + dom->cfg.oas = 35; + dom->iop = alloc_io_pgtable_ops(ARM_V7S, &dom->cfg, data); if (!dom->iop) { dev_err(data->dev, "Failed to alloc io pgtable\n"); -- 2.30.2