[PATCH v4 07/11] iommu/mediatek: mt8186: Add iova_region_larb_msk
From: Yong Wu <yong.wu@mediatek.com>
Date: 2023-02-15 06:28:12
Also in:
linux-devicetree, linux-iommu, linux-media, linux-mediatek, lkml
Subsystem:
iommu subsystem, mediatek iommu driver, the rest · Maintainers:
Joerg Roedel, Will Deacon, Yong Wu, Linus Torvalds
Add iova_region_larb_msk for mt8186. We separate the 16GB iova regions by each device's larbid/portid. Note: larb5/6/10/12/14/15/18 connect nothing in this SoC. Refer to include/dt-bindings/memory/mt8186-memory-port.h Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> --- drivers/iommu/mtk_iommu.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 0e387345e1c3..fbfc5e4e56a8 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c@@ -1529,6 +1529,18 @@ static const struct mtk_iommu_plat_data mt8183_data = { .larbid_remap = {{0}, {4}, {5}, {6}, {7}, {2}, {3}, {1}}, }; +static const unsigned int mt8186_larb_region_msk[MT8192_MULTI_REGION_NR_MAX][MTK_LARB_NR_MAX] = { + [0] = {~0, ~0, ~0}, /* Region0: all ports for larb0/1/2 */ + [1] = {0, 0, 0, 0, ~0, 0, 0, ~0}, /* Region1: larb4/7 */ + [2] = {0, 0, 0, 0, 0, 0, 0, 0, /* Region2: larb8/9/11/13/16/17/19/20 */ + ~0, ~0, 0, ~0, 0, ~(u32)(BIT(9) | BIT(10)), 0, 0, + /* larb13: the other ports except port9/10 */ + ~0, ~0, 0, ~0, ~0}, + [3] = {0}, + [4] = {[13] = BIT(9) | BIT(10)}, /* larb13 port9/10 */ + [5] = {[14] = ~0}, /* larb14 */ +}; + static const struct mtk_iommu_plat_data mt8186_data_mm = { .m4u_plat = M4U_MT8186, .flags = HAS_BCLK | HAS_SUB_COMM_2BITS | OUT_ORDER_WR_EN |
@@ -1541,6 +1553,7 @@ static const struct mtk_iommu_plat_data mt8186_data_mm = { .banks_enable = {true}, .iova_region = mt8192_multi_dom, .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom), + .iova_region_larb_msk = mt8186_larb_region_msk, }; static const unsigned int mt8192_larb_region_msk[MT8192_MULTI_REGION_NR_MAX][MTK_LARB_NR_MAX] = {
--
2.18.0
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