diff options
| author | Yong Wu <yong.wu@mediatek.com> | 2021-01-11 14:18:56 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-02-01 14:31:17 +0300 |
| commit | 9bdfe4c175c8a9ea4959f7ad087e3d66d3917bc8 (patch) | |
| tree | 2eddafa887ade378066a10bca3aca028f0f6e25a /drivers/iommu/mtk_iommu.c | |
| parent | 2f317da4332a145be76ccd49d0a38803b499c39c (diff) | |
| download | linux-9bdfe4c175c8a9ea4959f7ad087e3d66d3917bc8.tar.xz | |
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 <yong.wu@mediatek.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Link: https://lore.kernel.org/r/20210111111914.22211-16-yong.wu@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/mtk_iommu.c')
| -rw-r--r-- | drivers/iommu/mtk_iommu.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index bf1277d58121..1c4af574f5f7 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"); |