iommu/mediatek: mt8195: Add iova_region_larb_msk

Add iova_region_larb_msk for mt8195. We separate the 16GB iova regions
by each device's larbid/portid.
Refer to include/dt-bindings/memory/mt8195-memory-port.h

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230411093144.2690-7-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index ed692c2..35e64f6 100644 (file)
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -1587,6 +1587,21 @@ static const struct mtk_iommu_plat_data mt8195_data_infra = {
        .iova_region_nr   = ARRAY_SIZE(single_domain),
 };
 
+static const unsigned int mt8195_larb_region_msk[MT8192_MULTI_REGION_NR_MAX][MTK_LARB_NR_MAX] = {
+       [0] = {~0, ~0, ~0, ~0},               /* Region0: all ports for larb0/1/2/3 */
+       [1] = {0, 0, 0, 0, 0, 0, 0, 0,
+              0, 0, 0, 0, 0, 0, 0, 0,
+              0, 0, 0, ~0, ~0, ~0, ~0, ~0,   /* Region1: larb19/20/21/22/23/24 */
+              ~0},
+       [2] = {0, 0, 0, 0, ~0, ~0, ~0, ~0,    /* Region2: the other larbs. */
+              ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0,
+              ~0, ~0, 0, 0, 0, 0, 0, 0,
+              0, ~0, ~0, ~0, ~0},
+       [3] = {0},
+       [4] = {[18] = BIT(0) | BIT(1)},       /* Only larb18 port0/1 */
+       [5] = {[18] = BIT(2) | BIT(3)},       /* Only larb18 port2/3 */
+};
+
 static const struct mtk_iommu_plat_data mt8195_data_vdo = {
        .m4u_plat       = M4U_MT8195,
        .flags          = HAS_BCLK | HAS_SUB_COMM_2BITS | OUT_ORDER_WR_EN |
@@ -1597,6 +1612,7 @@ static const struct mtk_iommu_plat_data mt8195_data_vdo = {
        .banks_enable   = {true},
        .iova_region    = mt8192_multi_dom,
        .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom),
+       .iova_region_larb_msk = mt8195_larb_region_msk,
        .larbid_remap   = {{2, 0}, {21}, {24}, {7}, {19}, {9, 10, 11},
                           {13, 17, 15/* 17b */, 25}, {5}},
 };
@@ -1611,6 +1627,7 @@ static const struct mtk_iommu_plat_data mt8195_data_vpp = {
        .banks_enable   = {true},
        .iova_region    = mt8192_multi_dom,
        .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom),
+       .iova_region_larb_msk = mt8195_larb_region_msk,
        .larbid_remap   = {{1}, {3},
                           {22, MTK_INVALID_LARBID, MTK_INVALID_LARBID, MTK_INVALID_LARBID, 23},
                           {8}, {20}, {12},