From: Fabien Parent <fparent@xxxxxxxxxxxx> Until now the port ID was always encoded as a 5-bit data. On MT8365, the port ID is encoded as a 6-bit data. This requires to add extra macro F_MMU_INT_ID_LARB_ID_EXT, and F_MMU_INT_ID_PORT_ID_EXT in order to support 6-bit encoded port IDs. Signed-off-by: Fabien Parent <fparent@xxxxxxxxxxxx> Signed-off-by: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx> Signed-off-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx> --- drivers/iommu/mtk_iommu.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 5a4e00e4bbbc..35e9731c3441 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -108,8 +108,12 @@ #define F_MMU_INT_ID_SUB_COMM_ID(a) (((a) >> 7) & 0x3) #define F_MMU_INT_ID_COMM_ID_EXT(a) (((a) >> 10) & 0x7) #define F_MMU_INT_ID_SUB_COMM_ID_EXT(a) (((a) >> 7) & 0x7) +/* Macro for 5 bits lenght port ID field (default) */ #define F_MMU_INT_ID_LARB_ID(a) (((a) >> 7) & 0x7) #define F_MMU_INT_ID_PORT_ID(a) (((a) >> 2) & 0x1f) +/* Macro for 6 bits lenght port ID field */ +#define F_MMU_INT_ID_LARB_ID_EXT(a) (((a) >> 8) & 0x7) +#define F_MMU_INT_ID_PORT_ID_EXT(a) (((a) >> 2) & 0x3f) #define MTK_PROTECT_PA_ALIGN 256 #define MTK_IOMMU_BANK_SZ 0x1000 @@ -139,6 +143,7 @@ #define IFA_IOMMU_PCIE_SUPPORT BIT(16) #define PGTABLE_PA_35_EN BIT(17) #define TF_PORT_TO_ADDR_MT8173 BIT(18) +#define HAS_INT_ID_PORT_WIDTH_6 BIT(19) #define MTK_IOMMU_HAS_FLAG_MASK(pdata, _x, mask) \ ((((pdata)->flags) & (mask)) == (_x)) @@ -441,7 +446,11 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) fault_pa |= (u64)pa34_32 << 32; if (MTK_IOMMU_IS_TYPE(plat_data, MTK_IOMMU_TYPE_MM)) { - fault_port = F_MMU_INT_ID_PORT_ID(regval); + if (MTK_IOMMU_HAS_FLAG(plat_data, HAS_INT_ID_PORT_WIDTH_6)) { + fault_port = F_MMU_INT_ID_PORT_ID_EXT(regval); + } else { + fault_port = F_MMU_INT_ID_PORT_ID(regval); + } if (MTK_IOMMU_HAS_FLAG(plat_data, HAS_SUB_COMM_2BITS)) { fault_larb = F_MMU_INT_ID_COMM_ID(regval); sub_comm = F_MMU_INT_ID_SUB_COMM_ID(regval); @@ -449,7 +458,11 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) fault_larb = F_MMU_INT_ID_COMM_ID_EXT(regval); sub_comm = F_MMU_INT_ID_SUB_COMM_ID_EXT(regval); } else { - fault_larb = F_MMU_INT_ID_LARB_ID(regval); + if (MTK_IOMMU_HAS_FLAG(plat_data, HAS_INT_ID_PORT_WIDTH_6)) { + fault_larb = F_MMU_INT_ID_LARB_ID_EXT(regval); + } else { + fault_larb = F_MMU_INT_ID_LARB_ID(regval); + } } fault_larb = data->plat_data->larbid_remap[fault_larb][sub_comm]; } -- b4 0.10.1