[PATCH v2 29/29] iommu/mediatek: mt8195: Enable multi banks for infra iommu
From: Yong Wu <yong.wu@mediatek.com>
Date: 2021-08-13 06:57:47
Also in:
linux-arm-kernel, linux-devicetree, linux-iommu, linux-mediatek
Subsystem:
iommu subsystem, mediatek iommu driver, the rest · Maintainers:
Joerg Roedel, Will Deacon, Yong Wu, Linus Torvalds
Enable the multi-bank functions for infra-iommu. We put PCIE in bank0 and USB in the last bank(bank4). and we don't use the other banks currently, disable them. Signed-off-by: Yong Wu <yong.wu@mediatek.com> --- drivers/iommu/mtk_iommu.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 3d474eedce3e..5c4905e70362 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c@@ -1283,8 +1283,11 @@ static const struct mtk_iommu_plat_data mt8195_data_infra = { .flags = WR_THROT_EN | DCM_DISABLE | MTK_IOMMU_TYPE_INFRA | IFA_IOMMU_PCIe_SUPPORT, .pericfg_comp_str = "mediatek,mt8195-pericfg_ao", - .bank_nr = 1, - .bank_enable = {true}, + .bank_nr = 5, + .bank_enable = {true, false, false, false, true}, + .bank_portmsk = {[0] = GENMASK(19, 16), /* PCIe */ + [4] = GENMASK(31, 20), /* USB */ + }, .inv_sel_reg = REG_MMU_INV_SEL_GEN2, .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain),
--
2.18.0