Re: [PATCH 3/3] iommu/mediatek: Add support for mt8189
From: Yong Wu (吴勇) <Yong.Wu@mediatek.com>
Date: 2025-08-10 07:10:04
Also in:
linux-devicetree, linux-iommu, linux-mediatek, lkml
On Thu, 2025-08-07 at 17:57 +0800, zhengnan chen wrote:
From: "zhengnan chen" <redacted> Add support for mt8189 INFRA & APU & MM IOMMUs. Signed-off-by: zhengnan chen <redacted>
Splitting this into three patches(apu/mm/infra) may make the patch more readable.
--- drivers/iommu/mtk_iommu.c | 76 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+)
[snip]
+
+static const struct mtk_iommu_plat_data mt8189_data_mm = {
+ .m4u_plat = M4U_MT8189,
+ .flags = HAS_BCLK | HAS_SUB_COMM_3BITS |
OUT_ORDER_WR_EN |
+ WR_THROT_EN | IOVA_34_EN | MTK_IOMMU_TYPE_MM
|
+ PGTABLE_PA_35_EN | DL_WITH_MULTI_LARB,
+ .hw_list = &m4ulist,
+ .inv_sel_reg = REG_MMU_INV_SEL_GEN2,
+ .banks_num = 5,
+ .banks_enable = {true, false, false, false, true},
+ .iova_region = mt8192_multi_dom,
+ .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom),
+ .iova_region_larb_msk = mt8189_larb_region_msk,
+ .larbid_remap = {{0}, {1}, {21/*GCE_D*/, 21/*GCE_M*/, 2},Take care the format, Add space after '/*'
quoted hunk ↗ jump to hunk
+ {19, 20, 9, 11}, {7}, {4}, + {13, 17}, {14, 16}}, +}; + static const struct mtk_iommu_plat_data mt8192_data = { .m4u_plat = M4U_MT8192, .flags = HAS_BCLK | HAS_SUB_COMM_2BITS | OUT_ORDER_WR_EN |@@ -1826,6 +1899,9 @@ static const struct of_device_idmtk_iommu_of_ids[] = { { .compatible = "mediatek,mt8188-iommu-infra", .data = &mt8188_data_infra}, { .compatible = "mediatek,mt8188-iommu-vdo", .data = &mt8188_data_vdo}, { .compatible = "mediatek,mt8188-iommu-vpp", .data = &mt8188_data_vpp}, + { .compatible = "mediatek,mt8189-iommu-apu", .data = &mt8189_data_apu}, + { .compatible = "mediatek,mt8189-iommu-infra", .data = &mt8189_data_infra}, + { .compatible = "mediatek,mt8189-iommu-mm", .data = &mt8189_data_mm}, { .compatible = "mediatek,mt8192-m4u", .data = &mt8192_data}, { .compatible = "mediatek,mt8195-iommu-infra", .data = &mt8195_data_infra}, { .compatible = "mediatek,mt8195-iommu-vdo", .data = &mt8195_data_vdo},