On Mon, 2019-11-04 at 19:52 +0800, Chao Hao wrote: > This patch adds description for MT6779 IOMMU. > > MT6779 has two iommus, they are MM_IOMMU and APU_IOMMU which > use ARM Short-Descriptor translation format. > > The MT6779 IOMMU hardware diagram is as below, it is only a brief > diagram about iommu, it don't focus on the part of smi_larb, so > I don't describe the smi_larb detailedly. > > EMI > | > -------------------------------------- > | | > MM_IOMMU APU_IOMMU > | | > SMI_COMMOM----------- APU_BUS > | | | > SMI_LARB(0~11) SMI_LARB12(FAKE) SMI_LARB13(FAKE) > | | | > | | -------------- > | | | | | > Multimedia engine CCU VPU MDLA EMDA > > All the connections are hardware fixed, software can not adjust it. > > From the diagram above, MM_IOMMU provides mapping for multimedia engine, > but CCU is connected with smi_common directly, we can take them as larb12. > APU_IOMMU provides mapping for APU engine, we can take them larb13. > Larb12 and Larb13 are fake larbs. > > Signed-off-by: Chao Hao <chao.hao@xxxxxxxxxxxx> > --- > .../bindings/iommu/mediatek,iommu.txt | 2 + > include/dt-bindings/memory/mt6779-larb-port.h | 217 ++++++++++++++++++ > 2 files changed, 219 insertions(+) > create mode 100644 include/dt-bindings/memory/mt6779-larb-port.h > > diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt b/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt > index ce59a505f5a4..c1ccd8582eb2 100644 > --- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt > +++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt > @@ -58,6 +58,7 @@ Required properties: > - compatible : must be one of the following string: > "mediatek,mt2701-m4u" for mt2701 which uses generation one m4u HW. > "mediatek,mt2712-m4u" for mt2712 which uses generation two m4u HW. > + "mediatek,mt6779-m4u" for mt6779 which uses generation two m4u HW. > "mediatek,mt7623-m4u", "mediatek,mt2701-m4u" for mt7623 which uses > generation one m4u HW. > "mediatek,mt8173-m4u" for mt8173 which uses generation two m4u HW. > @@ -78,6 +79,7 @@ Required properties: > Specifies the mtk_m4u_id as defined in > dt-binding/memory/mt2701-larb-port.h for mt2701, mt7623 > dt-binding/memory/mt2712-larb-port.h for mt2712, > + dt-binding/memory/mt6779-larb-port.h for mt6779, > dt-binding/memory/mt8173-larb-port.h for mt8173, and > dt-binding/memory/mt8183-larb-port.h for mt8183. > > diff --git a/include/dt-bindings/memory/mt6779-larb-port.h b/include/dt-bindings/memory/mt6779-larb-port.h > new file mode 100644 > index 000000000000..8b7f2d2446ea > --- /dev/null > +++ b/include/dt-bindings/memory/mt6779-larb-port.h > @@ -0,0 +1,217 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* > + * Copyright (c) 2019 MediaTek Inc. > + * Author: Chao Hao <chao.hao@xxxxxxxxxxxx> > + */ > + > +#ifndef _DTS_IOMMU_PORT_MT6779_H_ > +#define _DTS_IOMMU_PORT_MT6779_H_ > + > +#define MTK_M4U_ID(larb, port) (((larb) << 5) | (port)) > + > +#define M4U_LARB0_ID 0 > +#define M4U_LARB1_ID 1 > +#define M4U_LARB2_ID 2 > +#define M4U_LARB3_ID 3 > +#define M4U_LARB4_ID 4 > +#define M4U_LARB5_ID 5 > +#define M4U_LARB6_ID 6 > +#define M4U_LARB7_ID 7 > +#define M4U_LARB8_ID 8 > +#define M4U_LARB9_ID 9 > +#define M4U_LARB10_ID 10 > +#define M4U_LARB11_ID 11 > +#define M4U_LARB12_ID 12 > +#define M4U_LARB13_ID 13 > + > +/* larb0 */ > +#define M4U_PORT_DISP_POSTMASK0 MTK_M4U_ID(M4U_LARB0_ID, 0) > +#define M4U_PORT_DISP_OVL0_HDR MTK_M4U_ID(M4U_LARB0_ID, 1) > +#define M4U_PORT_DISP_OVL1_HDR MTK_M4U_ID(M4U_LARB0_ID, 2) > +#define M4U_PORT_DISP_OVL0 MTK_M4U_ID(M4U_LARB0_ID, 3) > +#define M4U_PORT_DISP_OVL1 MTK_M4U_ID(M4U_LARB0_ID, 4) > +#define M4U_PORT_DISP_PVRIC0 MTK_M4U_ID(M4U_LARB0_ID, 5) > +#define M4U_PORT_DISP_RDMA0 MTK_M4U_ID(M4U_LARB0_ID, 6) > +#define M4U_PORT_DISP_WDMA0 MTK_M4U_ID(M4U_LARB0_ID, 7) > +#define M4U_PORT_DISP_FAKE0 MTK_M4U_ID(M4U_LARB0_ID, 8) > + > +/* larb1 */ > +#define M4U_PORT_DISP_OVL0_2L_HDR MTK_M4U_ID(M4U_LARB1_ID, 0) > +#define M4U_PORT_DISP_OVL1_2L_HDR MTK_M4U_ID(M4U_LARB1_ID, 1) > +#define M4U_PORT_DISP_OVL0_2L MTK_M4U_ID(M4U_LARB1_ID, 2) > +#define M4U_PORT_DISP_OVL1_2L MTK_M4U_ID(M4U_LARB1_ID, 3) > +#define M4U_PORT_DISP_RDMA1 MTK_M4U_ID(M4U_LARB1_ID, 4) > +#define M4U_PORT_MDP_PVRIC0 MTK_M4U_ID(M4U_LARB1_ID, 5) > +#define M4U_PORT_MDP_PVRIC1 MTK_M4U_ID(M4U_LARB1_ID, 6) > +#define M4U_PORT_MDP_RDMA0 MTK_M4U_ID(M4U_LARB1_ID, 7) > +#define M4U_PORT_MDP_RDMA1 MTK_M4U_ID(M4U_LARB1_ID, 8) > +#define M4U_PORT_MDP_WROT0_R MTK_M4U_ID(M4U_LARB1_ID, 9) > +#define M4U_PORT_MDP_WROT0_W MTK_M4U_ID(M4U_LARB1_ID, 10) > +#define M4U_PORT_MDP_WROT1_R MTK_M4U_ID(M4U_LARB1_ID, 11) > +#define M4U_PORT_MDP_WROT1_W MTK_M4U_ID(M4U_LARB1_ID, 12) > +#define M4U_PORT_DISP_FAKE1 MTK_M4U_ID(M4U_LARB1_ID, 13) > + > +/* larb2-VDEC */ > +#define M4U_PORT_HW_VDEC_MC_EXT MTK_M4U_ID(M4U_LARB2_ID, 0) > +#define M4U_PORT_HW_VDEC_UFO_EXT MTK_M4U_ID(M4U_LARB2_ID, 1) > +#define M4U_PORT_HW_VDEC_PP_EXT MTK_M4U_ID(M4U_LARB2_ID, 2) > +#define M4U_PORT_HW_VDEC_PRED_RD_EXT MTK_M4U_ID(M4U_LARB2_ID, 3) > +#define M4U_PORT_HW_VDEC_PRED_WR_EXT MTK_M4U_ID(M4U_LARB2_ID, 4) > +#define M4U_PORT_HW_VDEC_PPWRAP_EXT MTK_M4U_ID(M4U_LARB2_ID, 5) > +#define M4U_PORT_HW_VDEC_TILE_EXT MTK_M4U_ID(M4U_LARB2_ID, 6) > +#define M4U_PORT_HW_VDEC_VLD_EXT MTK_M4U_ID(M4U_LARB2_ID, 7) > +#define M4U_PORT_HW_VDEC_VLD2_EXT MTK_M4U_ID(M4U_LARB2_ID, 8) > +#define M4U_PORT_HW_VDEC_AVC_MV_EXT MTK_M4U_ID(M4U_LARB2_ID, 9) > +#define M4U_PORT_HW_VDEC_UFO_ENC_EXT MTK_M4U_ID(M4U_LARB2_ID, 10) > +#define M4U_PORT_HW_VDEC_RG_CTRL_DMA_EXT MTK_M4U_ID(M4U_LARB2_ID, 11) > + > +/*larb3-VENC*/ Normally add space before and after the word. Like: /* larb3-VENC */ below are the same. > +#define M4U_PORT_VENC_RCPU MTK_M4U_ID(M4U_LARB3_ID, 0) > +#define M4U_PORT_VENC_REC MTK_M4U_ID(M4U_LARB3_ID, 1) > +#define M4U_PORT_VENC_BSDMA MTK_M4U_ID(M4U_LARB3_ID, 2) > +#define M4U_PORT_VENC_SV_COMV MTK_M4U_ID(M4U_LARB3_ID, 3) > +#define M4U_PORT_VENC_RD_COMV MTK_M4U_ID(M4U_LARB3_ID, 4) > +#define M4U_PORT_VENC_NBM_RDMA MTK_M4U_ID(M4U_LARB3_ID, 5) > +#define M4U_PORT_VENC_NBM_RDMA_LITE MTK_M4U_ID(M4U_LARB3_ID, 6) > +#define M4U_PORT_JPGENC_Y_RDMA MTK_M4U_ID(M4U_LARB3_ID, 7) > +#define M4U_PORT_JPGENC_C_RDMA MTK_M4U_ID(M4U_LARB3_ID, 8) > +#define M4U_PORT_JPGENC_Q_TABLE MTK_M4U_ID(M4U_LARB3_ID, 9) > +#define M4U_PORT_JPGENC_BSDMA MTK_M4U_ID(M4U_LARB3_ID, 10) > +#define M4U_PORT_JPGDEC_WDMA MTK_M4U_ID(M4U_LARB3_ID, 11) > +#define M4U_PORT_JPGDEC_BSDMA MTK_M4U_ID(M4U_LARB3_ID, 12) > +#define M4U_PORT_VENC_NBM_WDMA MTK_M4U_ID(M4U_LARB3_ID, 13) > +#define M4U_PORT_VENC_NBM_WDMA_LITE MTK_M4U_ID(M4U_LARB3_ID, 14) > +#define M4U_PORT_VENC_CUR_LUMA MTK_M4U_ID(M4U_LARB3_ID, 15) > +#define M4U_PORT_VENC_CUR_CHROMA MTK_M4U_ID(M4U_LARB3_ID, 16) > +#define M4U_PORT_VENC_REF_LUMA MTK_M4U_ID(M4U_LARB3_ID, 17) > +#define M4U_PORT_VENC_REF_CHROMA MTK_M4U_ID(M4U_LARB3_ID, 18) > + > +/*larb4-dummy*/ > + > +/*larb5-IMG*/ [snip] > + > +#define M4U_PORT_VPU MTK_M4U_ID(M4U_LARB13_ID, 0) > +#define M4U_PORT_MDLA MTK_M4U_ID(M4U_LARB13_ID, 1) > +#define M4U_PORT_EDMA MTK_M4U_ID(M4U_LARB13_ID, 2) > + > +#define M4U_PORT_UNKNOWN (M4U_PORT_EDMA + 1) When do you need this UNKNOWN one? The other SoC doesn't have it. Please remove if it is unnecessary. > + > +#endif
