[20/21] iommu/mediatek: Add mt8192 support

Commit Message

Yong Wu (吴勇) July 11, 2020, 6:48 a.m. UTC

Add mt8192 iommu support.

Signed-off-by: Yong Wu <[e-mail]>
---
 drivers/iommu/mtk_iommu.c | 20 ++++++++++++++++++++
 drivers/iommu/mtk_iommu.h |  1 +
 2 files changed, 21 insertions(+)

Patch

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index a4ac41e60c4f..da7d055af919 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -168,6 +168,14 @@  static const struct mtk_iommu_iova_region single_domain[] = {
 	{.iova_base = 0, .size = SZ_4G},
 };
 
+static const struct mtk_iommu_iova_region mt8192_multi_dom[] = {
+	{ .iova_base = 0x0, .size = SZ_4G},	      /* disp : 0 ~ 4G */
+	{ .iova_base = SZ_4G, .size = SZ_4G},         /* vdec : 4G ~ 8G */
+	{ .iova_base = SZ_4G * 2, .size = SZ_4G},     /* CAM/MDP: 8G ~ 12G */
+	{ .iova_base = 0x240000000ULL, .size = 0x4000000}, /* CCU0 */
+	{ .iova_base = 0x244000000ULL, .size = 0x4000000}, /* CCU1 */
+};
+
 /*
  * There may be 1 or 2 M4U HWs, But we always expect they are in the same domain
  * for the performance.
@@ -991,11 +999,23 @@  static const struct mtk_iommu_plat_data mt8183_data = {
 	.larbid_remap = {{0}, {4}, {5}, {6}, {7}, {2}, {3}, {1}},
 };
 
+static const struct mtk_iommu_plat_data mt8192_data = {
+	.m4u_plat       = M4U_MT8192,
+	.flags          = HAS_SUB_COMM | OUT_ORDER_WR_EN | WR_THROT_EN
+			  | IOVA_34_EN,
+	.inv_sel_reg    = REG_MMU_INV_SEL_GEN2,
+	.iova_region    = mt8192_multi_dom,
+	.iova_region_nr = ARRAY_SIZE(mt8192_multi_dom),
+	.larbid_remap   = {{0}, {1}, {4, 5}, {7}, {2}, {9, 11, 19, 20},
+			   {0, 14, 16}, {0, 13, 18, 17}},
+};
+
 static const struct of_device_id mtk_iommu_of_ids[] = {
 	{ .compatible = "mediatek,mt2712-m4u", .data = &mt2712_data},
 	{ .compatible = "mediatek,mt6779-m4u", .data = &mt6779_data},
 	{ .compatible = "mediatek,mt8173-m4u", .data = &mt8173_data},
 	{ .compatible = "mediatek,mt8183-m4u", .data = &mt8183_data},
+	{ .compatible = "mediatek,mt8192-m4u", .data = &mt8192_data},
 	{}
 };
 
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index 11795b8d82ff..d42a250156bd 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -41,6 +41,7 @@  enum mtk_iommu_plat {
 	M4U_MT6779,
 	M4U_MT8173,
 	M4U_MT8183,
+	M4U_MT8192,
 };
 
 struct mtk_iommu_iova_region;