[PATCH 04/12] iommu/mediatek: Add APU iommu data for mt8195
Flora Fu
flora.fu at mediatek.com
Fri Dec 10 09:52:15 PST 2021
Add hardware settins for support mt8195 apu iommu.
Signed-off-by: Yong Wu <yong.wu at mediatek.com>
Signed-off-by: Flora Fu <flora.fu at mediatek.com>
---
drivers/iommu/mtk_iommu.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 4bc7c76062e6..3fda9ad9f925 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -218,6 +218,13 @@ static const struct mtk_iommu_iova_region mt8192_multi_dom_apu[] = {
{ .iova_base = 0x70000000ULL, .size = 0x12600000}, /* APU REG */
};
+static const struct mtk_iommu_iova_region mt8195_multi_dom_apu[] = {
+ { .iova_base = 0x0, .size = SZ_4G}, /* APU DATA */
+ { .iova_base = 0x8000000ULL, .size = 0x8000000}, /* APU VLM */
+ { .iova_base = 0x20000000ULL, .size = 0xe0000000}, /* APU VPU */
+ { .iova_base = 0x70000000ULL, .size = 0x12600000}, /* APU REG */
+};
+
/* If 2 M4U share a domain(use the same hwlist), Put the corresponding info in first data.*/
static struct mtk_iommu_data *mtk_iommu_get_frst_data(struct list_head *hwlist)
{
@@ -1312,6 +1319,18 @@ static const struct mtk_iommu_plat_data mt8192_data_apu = {
.iova_region_nr = ARRAY_SIZE(mt8192_multi_dom_apu),
};
+static const struct mtk_iommu_plat_data mt8195_data_apu = {
+ .m4u_plat = M4U_MT8195,
+ .flags = DCM_DISABLE | MTK_IOMMU_TYPE_APU |
+ SHARE_PGTABLE,
+ .inv_sel_reg = REG_MMU_INV_SEL_GEN2,
+ .hw_list = &apulist,
+ .bank_nr = 1,
+ .bank_enable = {true},
+ .iova_region = mt8195_multi_dom_apu,
+ .iova_region_nr = ARRAY_SIZE(mt8195_multi_dom_apu),
+};
+
static const struct mtk_iommu_plat_data mt8195_data_infra = {
.m4u_plat = M4U_MT8195,
.flags = WR_THROT_EN | DCM_DISABLE |
@@ -1368,6 +1387,7 @@ static const struct of_device_id mtk_iommu_of_ids[] = {
{ .compatible = "mediatek,mt8183-m4u", .data = &mt8183_data},
{ .compatible = "mediatek,mt8192-m4u", .data = &mt8192_data},
{ .compatible = "mediatek,mt8192-iommu-apu", .data = &mt8192_data_apu},
+ { .compatible = "mediatek,mt8195-iommu-apu", .data = &mt8195_data_apu},
{ .compatible = "mediatek,mt8195-iommu-infra", .data = &mt8195_data_infra},
{ .compatible = "mediatek,mt8195-iommu-vdo", .data = &mt8195_data_vdo},
{ .compatible = "mediatek,mt8195-iommu-vpp", .data = &mt8195_data_vpp},
--
2.18.0
More information about the linux-arm-kernel
mailing list