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| author | Yong Wu <yong.wu@mediatek.com> | 2022-05-03 10:14:17 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-05-04 11:39:40 +0300 |
| commit | 9485a04a5bb97e2b9749277005e1f7c23b9ec8be (patch) | |
| tree | b3bec956cfaf641dad48d0d2f33cce1d042fbabc /drivers/iommu/mtk_iommu_v1.c | |
| parent | 634f57df1f3b61cc1b1441762718a14da28c27f8 (diff) | |
| download | linux-9485a04a5bb97e2b9749277005e1f7c23b9ec8be.tar.xz | |
iommu/mediatek: Separate mtk_iommu_data for v1 and v2
Prepare for adding the structure "mtk_iommu_bank_data". No functional
change. The mtk_iommu_domain in v1 and v2 are different, we could not add
current data as bank[0] in v1 simplistically.
Currently we have no plan to add new SoC for v1, in order to avoid affect
v1 when we add many new features for v2, I totally separate v1 and v2 in
this patch, there are many structures only for v2.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20220503071427.2285-27-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/mtk_iommu_v1.c')
| -rw-r--r-- | drivers/iommu/mtk_iommu_v1.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index ecff800656e6..6d1c09c91e1f 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -87,6 +87,21 @@ */ #define M2701_IOMMU_PGT_SIZE SZ_4M +struct mtk_iommu_data { + void __iomem *base; + int irq; + struct device *dev; + struct clk *bclk; + phys_addr_t protect_base; /* protect memory base */ + struct mtk_iommu_domain *m4u_dom; + + struct iommu_device iommu; + struct dma_iommu_mapping *mapping; + struct mtk_smi_larb_iommu larb_imu[MTK_LARB_NR_MAX]; + + struct mtk_iommu_suspend_reg reg; +}; + struct mtk_iommu_domain { spinlock_t pgtlock; /* lock for page table */ struct iommu_domain domain; @@ -95,6 +110,20 @@ struct mtk_iommu_domain { struct mtk_iommu_data *data; }; +static int mtk_iommu_bind(struct device *dev) +{ + struct mtk_iommu_data *data = dev_get_drvdata(dev); + + return component_bind_all(dev, &data->larb_imu); +} + +static void mtk_iommu_unbind(struct device *dev) +{ + struct mtk_iommu_data *data = dev_get_drvdata(dev); + + component_unbind_all(dev, &data->larb_imu); +} + static struct mtk_iommu_domain *to_mtk_domain(struct iommu_domain *dom) { return container_of(dom, struct mtk_iommu_domain, domain); |