dt-bindings: mediatek: Add binding for mt8192 IOMMU

This patch adds decriptions for mt8192 IOMMU and SMI.

mt8192 also is MTK IOMMU gen2 which uses ARM Short-Descriptor translation
table format. The M4U-SMI HW diagram is as below:

EMI
|
M4U
|
------------
SMI Common
------------
|
+-------+------+------+----------------------+-------+
| | | | ...... | |
| | | | | |
larb0 larb1 larb2 larb4 ...... larb19 larb20
disp0 disp1 mdp vdec IPE IPE

All the connections are HW fixed, SW can NOT adjust it.

mt8192 M4U support 0~16GB iova range. we preassign different engines
into different iova ranges:

domain-id module iova-range larbs
0 disp 0 ~ 4G larb0/1
1 vcodec 4G ~ 8G larb4/5/7
2 cam/mdp 8G ~ 12G larb2/9/11/13/14/16/17/18/19/20
3 CCU0 0x4000_0000 ~ 0x43ff_ffff larb13: port 9/10
4 CCU1 0x4400_0000 ~ 0x47ff_ffff larb14: port 4/5

The iova range for CCU0/1(camera control unit) is HW requirement.

Signed-off-by: Yong Wu <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Tomasz Figa <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Will Deacon <[e-mail]>

Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml

···
           - mediatek,mt8167-m4u  # generation two
           - mediatek,mt8173-m4u  # generation two
           - mediatek,mt8183-m4u  # generation two
+          - mediatek,mt8192-m4u  # generation two
 
       - description: mt7623 generation one
         items:
···
       dt-binding/memory/mt6779-larb-port.h for mt6779,
       dt-binding/memory/mt8167-larb-port.h for mt8167,
       dt-binding/memory/mt8173-larb-port.h for mt8173,
-      dt-binding/memory/mt8183-larb-port.h for mt8183.
+      dt-binding/memory/mt8183-larb-port.h for mt8183,
+      dt-binding/memory/mt8192-larb-port.h for mt8192.
+
+  power-domains:
+    maxItems: 1
 
 required:
   - compatible
···
               - mediatek,mt2701-m4u
               - mediatek,mt2712-m4u
               - mediatek,mt8173-m4u
+              - mediatek,mt8192-m4u
 
     then:
       required:
         - clocks
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - mediatek,mt8192-m4u
+
+    then:
+      required:
+        - power-domains
 
 additionalProperties: false
 

include/dt-bindings/memory/mt8192-larb-port.h

···
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020 MediaTek Inc.
+ *
+ * Author: Chao Hao <[e-mail]>
+ * Author: Yong Wu <[e-mail]>
+ */
+#ifndef _DT_BINDINGS_MEMORY_MT8192_LARB_PORT_H_
+#define _DT_BINDINGS_MEMORY_MT8192_LARB_PORT_H_
+
+#include <dt-bindings/memory/mtk-memory-port.h>
+
+/*
+ * MM IOMMU supports 16GB dma address.
+ *
+ * The address will preassign like this:
+ *
+ * modules    dma-address-region	larbs-ports
+ * disp         0 ~ 4G                   larb0/1
+ * vcodec      4G ~ 8G                  larb4/5/7
+ * cam/mdp     8G ~ 12G             larb2/9/11/13/14/16/17/18/19/20
+ * CCU0    0x4000_0000 ~ 0x43ff_ffff     larb13: port 9/10
+ * CCU1    0x4400_0000 ~ 0x47ff_ffff     larb14: port 4/5
+ *
+ * larb3/6/8/10/12/15 is null.
+ */
+
+/* larb0 */
+#define M4U_PORT_L0_DISP_POSTMASK0		MTK_M4U_ID(0, 0)
+#define M4U_PORT_L0_OVL_RDMA0_HDR		MTK_M4U_ID(0, 1)
+#define M4U_PORT_L0_OVL_RDMA0			MTK_M4U_ID(0, 2)
+#define M4U_PORT_L0_DISP_RDMA0			MTK_M4U_ID(0, 3)
+#define M4U_PORT_L0_DISP_WDMA0			MTK_M4U_ID(0, 4)
+#define M4U_PORT_L0_DISP_FAKE0			MTK_M4U_ID(0, 5)
+
+/* larb1 */
+#define M4U_PORT_L1_OVL_2L_RDMA0_HDR		MTK_M4U_ID(1, 0)
+#define M4U_PORT_L1_OVL_2L_RDMA2_HDR		MTK_M4U_ID(1, 1)
+#define M4U_PORT_L1_OVL_2L_RDMA0		MTK_M4U_ID(1, 2)
+#define M4U_PORT_L1_OVL_2L_RDMA2		MTK_M4U_ID(1, 3)
+#define M4U_PORT_L1_DISP_MDP_RDMA4		MTK_M4U_ID(1, 4)
+#define M4U_PORT_L1_DISP_RDMA4			MTK_M4U_ID(1, 5)
+#define M4U_PORT_L1_DISP_UFBC_WDMA0		MTK_M4U_ID(1, 6)
+#define M4U_PORT_L1_DISP_FAKE1			MTK_M4U_ID(1, 7)
+
+/* larb2 */
+#define M4U_PORT_L2_MDP_RDMA0			MTK_M4U_ID(2, 0)
+#define M4U_PORT_L2_MDP_RDMA1			MTK_M4U_ID(2, 1)
+#define M4U_PORT_L2_MDP_WROT0			MTK_M4U_ID(2, 2)
+#define M4U_PORT_L2_MDP_WROT1			MTK_M4U_ID(2, 3)
+#define M4U_PORT_L2_MDP_DISP_FAKE0		MTK_M4U_ID(2, 4)
+
+/* larb3: null */
+
+/* larb4 */
+#define M4U_PORT_L4_VDEC_MC_EXT			MTK_M4U_ID(4, 0)
+#define M4U_PORT_L4_VDEC_UFO_EXT		MTK_M4U_ID(4, 1)
+#define M4U_PORT_L4_VDEC_PP_EXT			MTK_M4U_ID(4, 2)
+#define M4U_PORT_L4_VDEC_PRED_RD_EXT		MTK_M4U_ID(4, 3)
+#define M4U_PORT_L4_VDEC_PRED_WR_EXT		MTK_M4U_ID(4, 4)
+#define M4U_PORT_L4_VDEC_PPWRAP_EXT		MTK_M4U_ID(4, 5)
+#define M4U_PORT_L4_VDEC_TILE_EXT		MTK_M4U_ID(4, 6)
+#define M4U_PORT_L4_VDEC_VLD_EXT		MTK_M4U_ID(4, 7)
+#define M4U_PORT_L4_VDEC_VLD2_EXT		MTK_M4U_ID(4, 8)
+#define M4U_PORT_L4_VDEC_AVC_MV_EXT		MTK_M4U_ID(4, 9)
+#define M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT	MTK_M4U_ID(4, 10)
+
+/* larb5 */
+#define M4U_PORT_L5_VDEC_LAT0_VLD_EXT		MTK_M4U_ID(5, 0)
+#define M4U_PORT_L5_VDEC_LAT0_VLD2_EXT		MTK_M4U_ID(5, 1)
+#define M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT	MTK_M4U_ID(5, 2)
+#define M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT	MTK_M4U_ID(5, 3)
+#define M4U_PORT_L5_VDEC_LAT0_TILE_EXT		MTK_M4U_ID(5, 4)
+#define M4U_PORT_L5_VDEC_LAT0_WDMA_EXT		MTK_M4U_ID(5, 5)
+#define M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT	MTK_M4U_ID(5, 6)
+#define M4U_PORT_L5_VDEC_UFO_ENC_EXT		MTK_M4U_ID(5, 7)
+
+/* larb6: null */
+
+/* larb7 */
+#define M4U_PORT_L7_VENC_RCPU			MTK_M4U_ID(7, 0)
+#define M4U_PORT_L7_VENC_REC			MTK_M4U_ID(7, 1)
+#define M4U_PORT_L7_VENC_BSDMA			MTK_M4U_ID(7, 2)
+#define M4U_PORT_L7_VENC_SV_COMV		MTK_M4U_ID(7, 3)
+#define M4U_PORT_L7_VENC_RD_COMV		MTK_M4U_ID(7, 4)
+#define M4U_PORT_L7_VENC_CUR_LUMA		MTK_M4U_ID(7, 5)
+#define M4U_PORT_L7_VENC_CUR_CHROMA		MTK_M4U_ID(7, 6)
+#define M4U_PORT_L7_VENC_REF_LUMA		MTK_M4U_ID(7, 7)
+#define M4U_PORT_L7_VENC_REF_CHROMA		MTK_M4U_ID(7, 8)
+#define M4U_PORT_L7_JPGENC_Y_RDMA		MTK_M4U_ID(7, 9)
+#define M4U_PORT_L7_JPGENC_Q_RDMA		MTK_M4U_ID(7, 10)
+#define M4U_PORT_L7_JPGENC_C_TABLE		MTK_M4U_ID(7, 11)
+#define M4U_PORT_L7_JPGENC_BSDMA		MTK_M4U_ID(7, 12)
+#define M4U_PORT_L7_VENC_SUB_R_LUMA		MTK_M4U_ID(7, 13)
+#define M4U_PORT_L7_VENC_SUB_W_LUMA		MTK_M4U_ID(7, 14)
+
+/* larb8: null */
+
+/* larb9 */
+#define M4U_PORT_L9_IMG_IMGI_D1			MTK_M4U_ID(9, 0)
+#define M4U_PORT_L9_IMG_IMGBI_D1		MTK_M4U_ID(9, 1)
+#define M4U_PORT_L9_IMG_DMGI_D1			MTK_M4U_ID(9, 2)
+#define M4U_PORT_L9_IMG_DEPI_D1			MTK_M4U_ID(9, 3)
+#define M4U_PORT_L9_IMG_ICE_D1			MTK_M4U_ID(9, 4)
+#define M4U_PORT_L9_IMG_SMTI_D1			MTK_M4U_ID(9, 5)
+#define M4U_PORT_L9_IMG_SMTO_D2			MTK_M4U_ID(9, 6)
+#define M4U_PORT_L9_IMG_SMTO_D1			MTK_M4U_ID(9, 7)
+#define M4U_PORT_L9_IMG_CRZO_D1			MTK_M4U_ID(9, 8)
+#define M4U_PORT_L9_IMG_IMG3O_D1		MTK_M4U_ID(9, 9)
+#define M4U_PORT_L9_IMG_VIPI_D1			MTK_M4U_ID(9, 10)
+#define M4U_PORT_L9_IMG_SMTI_D5			MTK_M4U_ID(9, 11)
+#define M4U_PORT_L9_IMG_TIMGO_D1		MTK_M4U_ID(9, 12)
+#define M4U_PORT_L9_IMG_UFBC_W0			MTK_M4U_ID(9, 13)
+#define M4U_PORT_L9_IMG_UFBC_R0			MTK_M4U_ID(9, 14)
+
+/* larb10: null */
+
+/* larb11 */
+#define M4U_PORT_L11_IMG_IMGI_D1		MTK_M4U_ID(11, 0)
+#define M4U_PORT_L11_IMG_IMGBI_D1		MTK_M4U_ID(11, 1)
+#define M4U_PORT_L11_IMG_DMGI_D1		MTK_M4U_ID(11, 2)
+#define M4U_PORT_L11_IMG_DEPI_D1		MTK_M4U_ID(11, 3)
+#define M4U_PORT_L11_IMG_ICE_D1			MTK_M4U_ID(11, 4)
+#define M4U_PORT_L11_IMG_SMTI_D1		MTK_M4U_ID(11, 5)
+#define M4U_PORT_L11_IMG_SMTO_D2		MTK_M4U_ID(11, 6)
+#define M4U_PORT_L11_IMG_SMTO_D1		MTK_M4U_ID(11, 7)
+#define M4U_PORT_L11_IMG_CRZO_D1		MTK_M4U_ID(11, 8)
+#define M4U_PORT_L11_IMG_IMG3O_D1		MTK_M4U_ID(11, 9)
+#define M4U_PORT_L11_IMG_VIPI_D1		MTK_M4U_ID(11, 10)
+#define M4U_PORT_L11_IMG_SMTI_D5		MTK_M4U_ID(11, 11)
+#define M4U_PORT_L11_IMG_TIMGO_D1		MTK_M4U_ID(11, 12)
+#define M4U_PORT_L11_IMG_UFBC_W0		MTK_M4U_ID(11, 13)
+#define M4U_PORT_L11_IMG_UFBC_R0		MTK_M4U_ID(11, 14)
+#define M4U_PORT_L11_IMG_WPE_RDMA1		MTK_M4U_ID(11, 15)
+#define M4U_PORT_L11_IMG_WPE_RDMA0		MTK_M4U_ID(11, 16)
+#define M4U_PORT_L11_IMG_WPE_WDMA		MTK_M4U_ID(11, 17)
+#define M4U_PORT_L11_IMG_MFB_RDMA0		MTK_M4U_ID(11, 18)
+#define M4U_PORT_L11_IMG_MFB_RDMA1		MTK_M4U_ID(11, 19)
+#define M4U_PORT_L11_IMG_MFB_RDMA2		MTK_M4U_ID(11, 20)
+#define M4U_PORT_L11_IMG_MFB_RDMA3		MTK_M4U_ID(11, 21)
+#define M4U_PORT_L11_IMG_MFB_RDMA4		MTK_M4U_ID(11, 22)
+#define M4U_PORT_L11_IMG_MFB_RDMA5		MTK_M4U_ID(11, 23)
+#define M4U_PORT_L11_IMG_MFB_WDMA0		MTK_M4U_ID(11, 24)
+#define M4U_PORT_L11_IMG_MFB_WDMA1		MTK_M4U_ID(11, 25)
+
+/* larb12: null */
+
+/* larb13 */
+#define M4U_PORT_L13_CAM_MRAWI			MTK_M4U_ID(13, 0)
+#define M4U_PORT_L13_CAM_MRAWO0			MTK_M4U_ID(13, 1)
+#define M4U_PORT_L13_CAM_MRAWO1			MTK_M4U_ID(13, 2)
+#define M4U_PORT_L13_CAM_CAMSV1			MTK_M4U_ID(13, 3)
+#define M4U_PORT_L13_CAM_CAMSV2			MTK_M4U_ID(13, 4)
+#define M4U_PORT_L13_CAM_CAMSV3			MTK_M4U_ID(13, 5)
+#define M4U_PORT_L13_CAM_CAMSV4			MTK_M4U_ID(13, 6)
+#define M4U_PORT_L13_CAM_CAMSV5			MTK_M4U_ID(13, 7)
+#define M4U_PORT_L13_CAM_CAMSV6			MTK_M4U_ID(13, 8)
+#define M4U_PORT_L13_CAM_CCUI			MTK_M4U_ID(13, 9)
+#define M4U_PORT_L13_CAM_CCUO			MTK_M4U_ID(13, 10)
+#define M4U_PORT_L13_CAM_FAKE			MTK_M4U_ID(13, 11)
+
+/* larb14 */
+#define M4U_PORT_L14_CAM_RESERVE1		MTK_M4U_ID(14, 0)
+#define M4U_PORT_L14_CAM_RESERVE2		MTK_M4U_ID(14, 1)
+#define M4U_PORT_L14_CAM_RESERVE3		MTK_M4U_ID(14, 2)
+#define M4U_PORT_L14_CAM_CAMSV0			MTK_M4U_ID(14, 3)
+#define M4U_PORT_L14_CAM_CCUI			MTK_M4U_ID(14, 4)
+#define M4U_PORT_L14_CAM_CCUO			MTK_M4U_ID(14, 5)
+
+/* larb15: null */
+
+/* larb16 */
+#define M4U_PORT_L16_CAM_IMGO_R1_A		MTK_M4U_ID(16, 0)
+#define M4U_PORT_L16_CAM_RRZO_R1_A		MTK_M4U_ID(16, 1)
+#define M4U_PORT_L16_CAM_CQI_R1_A		MTK_M4U_ID(16, 2)
+#define M4U_PORT_L16_CAM_BPCI_R1_A		MTK_M4U_ID(16, 3)
+#define M4U_PORT_L16_CAM_YUVO_R1_A		MTK_M4U_ID(16, 4)
+#define M4U_PORT_L16_CAM_UFDI_R2_A		MTK_M4U_ID(16, 5)
+#define M4U_PORT_L16_CAM_RAWI_R2_A		MTK_M4U_ID(16, 6)
+#define M4U_PORT_L16_CAM_RAWI_R3_A		MTK_M4U_ID(16, 7)
+#define M4U_PORT_L16_CAM_AAO_R1_A		MTK_M4U_ID(16, 8)
+#define M4U_PORT_L16_CAM_AFO_R1_A		MTK_M4U_ID(16, 9)
+#define M4U_PORT_L16_CAM_FLKO_R1_A		MTK_M4U_ID(16, 10)
+#define M4U_PORT_L16_CAM_LCESO_R1_A		MTK_M4U_ID(16, 11)
+#define M4U_PORT_L16_CAM_CRZO_R1_A		MTK_M4U_ID(16, 12)
+#define M4U_PORT_L16_CAM_LTMSO_R1_A		MTK_M4U_ID(16, 13)
+#define M4U_PORT_L16_CAM_RSSO_R1_A		MTK_M4U_ID(16, 14)
+#define M4U_PORT_L16_CAM_AAHO_R1_A		MTK_M4U_ID(16, 15)
+#define M4U_PORT_L16_CAM_LSCI_R1_A		MTK_M4U_ID(16, 16)
+
+/* larb17 */
+#define M4U_PORT_L17_CAM_IMGO_R1_B		MTK_M4U_ID(17, 0)
+#define M4U_PORT_L17_CAM_RRZO_R1_B		MTK_M4U_ID(17, 1)
+#define M4U_PORT_L17_CAM_CQI_R1_B		MTK_M4U_ID(17, 2)
+#define M4U_PORT_L17_CAM_BPCI_R1_B		MTK_M4U_ID(17, 3)
+#define M4U_PORT_L17_CAM_YUVO_R1_B		MTK_M4U_ID(17, 4)
+#define M4U_PORT_L17_CAM_UFDI_R2_B		MTK_M4U_ID(17, 5)
+#define M4U_PORT_L17_CAM_RAWI_R2_B		MTK_M4U_ID(17, 6)
+#define M4U_PORT_L17_CAM_RAWI_R3_B		MTK_M4U_ID(17, 7)
+#define M4U_PORT_L17_CAM_AAO_R1_B		MTK_M4U_ID(17, 8)
+#define M4U_PORT_L17_CAM_AFO_R1_B		MTK_M4U_ID(17, 9)
+#define M4U_PORT_L17_CAM_FLKO_R1_B		MTK_M4U_ID(17, 10)
+#define M4U_PORT_L17_CAM_LCESO_R1_B		MTK_M4U_ID(17, 11)
+#define M4U_PORT_L17_CAM_CRZO_R1_B		MTK_M4U_ID(17, 12)
+#define M4U_PORT_L17_CAM_LTMSO_R1_B		MTK_M4U_ID(17, 13)
+#define M4U_PORT_L17_CAM_RSSO_R1_B		MTK_M4U_ID(17, 14)
+#define M4U_PORT_L17_CAM_AAHO_R1_B		MTK_M4U_ID(17, 15)
+#define M4U_PORT_L17_CAM_LSCI_R1_B		MTK_M4U_ID(17, 16)
+
+/* larb18 */
+#define M4U_PORT_L18_CAM_IMGO_R1_C		MTK_M4U_ID(18, 0)
+#define M4U_PORT_L18_CAM_RRZO_R1_C		MTK_M4U_ID(18, 1)
+#define M4U_PORT_L18_CAM_CQI_R1_C		MTK_M4U_ID(18, 2)
+#define M4U_PORT_L18_CAM_BPCI_R1_C		MTK_M4U_ID(18, 3)
+#define M4U_PORT_L18_CAM_YUVO_R1_C		MTK_M4U_ID(18, 4)
+#define M4U_PORT_L18_CAM_UFDI_R2_C		MTK_M4U_ID(18, 5)
+#define M4U_PORT_L18_CAM_RAWI_R2_C		MTK_M4U_ID(18, 6)
+#define M4U_PORT_L18_CAM_RAWI_R3_C		MTK_M4U_ID(18, 7)
+#define M4U_PORT_L18_CAM_AAO_R1_C		MTK_M4U_ID(18, 8)
+#define M4U_PORT_L18_CAM_AFO_R1_C		MTK_M4U_ID(18, 9)
+#define M4U_PORT_L18_CAM_FLKO_R1_C		MTK_M4U_ID(18, 10)
+#define M4U_PORT_L18_CAM_LCESO_R1_C		MTK_M4U_ID(18, 11)
+#define M4U_PORT_L18_CAM_CRZO_R1_C		MTK_M4U_ID(18, 12)
+#define M4U_PORT_L18_CAM_LTMSO_R1_C		MTK_M4U_ID(18, 13)
+#define M4U_PORT_L18_CAM_RSSO_R1_C		MTK_M4U_ID(18, 14)
+#define M4U_PORT_L18_CAM_AAHO_R1_C		MTK_M4U_ID(18, 15)
+#define M4U_PORT_L18_CAM_LSCI_R1_C		MTK_M4U_ID(18, 16)
+
+/* larb19 */
+#define M4U_PORT_L19_IPE_DVS_RDMA		MTK_M4U_ID(19, 0)
+#define M4U_PORT_L19_IPE_DVS_WDMA		MTK_M4U_ID(19, 1)
+#define M4U_PORT_L19_IPE_DVP_RDMA		MTK_M4U_ID(19, 2)
+#define M4U_PORT_L19_IPE_DVP_WDMA		MTK_M4U_ID(19, 3)
+
+/* larb20 */
+#define M4U_PORT_L20_IPE_FDVT_RDA		MTK_M4U_ID(20, 0)
+#define M4U_PORT_L20_IPE_FDVT_RDB		MTK_M4U_ID(20, 1)
+#define M4U_PORT_L20_IPE_FDVT_WRA		MTK_M4U_ID(20, 2)
+#define M4U_PORT_L20_IPE_FDVT_WRB		MTK_M4U_ID(20, 3)
+#define M4U_PORT_L20_IPE_RSC_RDMA0		MTK_M4U_ID(20, 4)
+#define M4U_PORT_L20_IPE_RSC_WDMA		MTK_M4U_ID(20, 5)
+
+#endif