diff options
| author | Yong Wu <yong.wu@mediatek.com> | 2021-01-11 12:19:13 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-02-01 12:31:19 +0100 |
| commit | 9e3489e06fb94a7908c3c8f098c191ff711a8182 (patch) | |
| tree | 1de4c3e7fc28678ec7b74f16a20d8c1aa3edafea /drivers/iommu | |
| parent | iommu/mediatek: Remove unnecessary check in attach_device (diff) | |
| download | linux-9e3489e06fb94a7908c3c8f098c191ff711a8182.tar.xz linux-9e3489e06fb94a7908c3c8f098c191ff711a8182.zip | |
iommu/mediatek: Add mt8192 support
Add mt8192 iommu support.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Link: https://lore.kernel.org/r/20210111111914.22211-33-yong.wu@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/mtk_iommu.c | 22 | ||||
| -rw-r--r-- | drivers/iommu/mtk_iommu.h | 1 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 084fb4394ffc..0ad14a7604b1 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -177,6 +177,16 @@ 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 */ + #if IS_ENABLED(CONFIG_ARCH_DMA_ADDR_T_64BIT) + { .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 */ + #endif +}; + /* * There may be 1 or 2 M4U HWs, But we always expect they are in the same domain * for the performance. @@ -1038,12 +1048,24 @@ 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_BCLK | 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,mt8167-m4u", .data = &mt8167_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 6f2168e3222d..f81fa8862ed0 100644 --- a/drivers/iommu/mtk_iommu.h +++ b/drivers/iommu/mtk_iommu.h @@ -45,6 +45,7 @@ enum mtk_iommu_plat { M4U_MT8167, M4U_MT8173, M4U_MT8183, + M4U_MT8192, }; struct mtk_iommu_iova_region; |