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iommu/mediatek: Set dma_mask for PGTABLE_PA_35_EN
author
Yong Wu
<yong.wu@mediatek.com>
Thu, 16 Mar 2023 10:14:45 +0000
(18:14 +0800)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Thu, 11 May 2023 14:03:33 +0000
(23:03 +0900)
[ Upstream commit
f045e9df6537175d02565f21616ac1a9dd59b61c
]
When we enable PGTABLE_PA_35_EN, the PA for pgtable may be 35bits.
Thus add dma_mask for it.
Fixes:
301c3ca12576
("iommu/mediatek: Allow page table PA up to 35bit")
Signed-off-by: Chengci.Xu <chengci.xu@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link:
https://lore.kernel.org/r/20230316101445.12443-1-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/iommu/mtk_iommu.c
patch
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diff --git
a/drivers/iommu/mtk_iommu.c
b/drivers/iommu/mtk_iommu.c
index
56d0075
..
e93ca9d
100644
(file)
--- a/
drivers/iommu/mtk_iommu.c
+++ b/
drivers/iommu/mtk_iommu.c
@@
-1237,6
+1237,14
@@
static int mtk_iommu_probe(struct platform_device *pdev)
return PTR_ERR(data->bclk);
}
+ if (MTK_IOMMU_HAS_FLAG(data->plat_data, PGTABLE_PA_35_EN)) {
+ ret = dma_set_mask(dev, DMA_BIT_MASK(35));
+ if (ret) {
+ dev_err(dev, "Failed to set dma_mask 35.\n");
+ return ret;
+ }
+ }
+
pm_runtime_enable(dev);
if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_MM)) {