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>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
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..50195a900611 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 length 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 length 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
