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Date: Thu, 21 Jun 2018 14:27:13 +0800
From: Yong Wu <yong.wu@...iatek.com>
To: Matthias Brugger <matthias.bgg@...il.com>
CC: Rob Herring <robh+dt@...nel.org>, Joerg Roedel <joro@...tes.org>,
"Robin Murphy" <robin.murphy@....com>,
Will Deacon <will.deacon@....com>,
"Tomasz Figa" <tfiga@...gle.com>,
<linux-mediatek@...ts.infradead.org>,
<srv_heupstream@...iatek.com>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<iommu@...ts.linux-foundation.org>, <arnd@...db.de>
Subject: Re: [PATCH v4] dt-bindings: mediatek: Add binding for mt2712 IOMMU
and SMI
Hi Matthias,
A gentle ping on this.
On Thu, 2018-05-24 at 20:35 +0800, Yong Wu wrote:
> This patch adds decriptions for mt2712 IOMMU and SMI.
>
> In order to balance the bandwidth, mt2712 has two M4Us, two
> smi-commons, 10 smi-larbs. and mt2712 is also MTK IOMMU gen2 which
> uses ARM Short-Descriptor translation table format.
>
> The mt2712 M4U-SMI HW diagram is as below:
>
> EMI
> |
> ------------------------------------
> | |
> M4U0 M4U1
> | |
> smi-common0 smi-common1
> | |
> ------------------------- --------------------------------
> | | | | | | | | | |
> | | | | | | | | | |
> larb0 larb1 larb2 larb3 larb6 larb4 larb5 larb7 larb8 larb9
> disp0 vdec cam venc jpg mdp1/disp1 mdp2/disp2 mdp3 vdo/nr tvd
>
> All the connections are HW fixed, SW can NOT adjust it.
>
> Signed-off-by: Yong Wu <yong.wu@...iatek.com>
> Acked-by: Rob Herring <robh@...nel.org>
> ---
> change notes:
> v4: change the license of the new file in this patch to SPDX.
>
> v3: http://lists.infradead.org/pipermail/linux-mediatek/2018-May/013279.html
> Add a new ECO port(DISP_RDMA2) in larb0/port7.
>
> v2:
> https://lists.linuxfoundation.org/pipermail/iommu/2017-August/023848.html
>
> v1:
> https://lists.linuxfoundation.org/pipermail/iommu/2017-August/023665.html
> ---
> .../devicetree/bindings/iommu/mediatek,iommu.txt | 6 +-
> .../memory-controllers/mediatek,smi-common.txt | 6 +-
> .../memory-controllers/mediatek,smi-larb.txt | 5 +-
> include/dt-bindings/memory/mt2712-larb-port.h | 95 ++++++++++++++++++++++
> 4 files changed, 106 insertions(+), 6 deletions(-)
> create mode 100644 include/dt-bindings/memory/mt2712-larb-port.h
>
> diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt b/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
> index 53c20ca..df5db73 100644
> --- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
> +++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
> @@ -40,6 +40,7 @@ video decode local arbiter, all these ports are according to the video HW.
> 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,mt8173-m4u" for mt8173 which uses generation two m4u HW.
> - reg : m4u register base and size.
> - interrupts : the interrupt of m4u.
> @@ -50,8 +51,9 @@ Required properties:
> according to the local arbiter index, like larb0, larb1, larb2...
> - iommu-cells : must be 1. This is the mtk_m4u_id according to the HW.
> Specifies the mtk_m4u_id as defined in
> - dt-binding/memory/mt2701-larb-port.h for mt2701 and
> - dt-binding/memory/mt8173-larb-port.h for mt8173
> + dt-binding/memory/mt2701-larb-port.h for mt2701,
> + dt-binding/memory/mt2712-larb-port.h for mt2712, and
> + dt-binding/memory/mt8173-larb-port.h for mt8173.
>
> Example:
> iommu: iommu@...05000 {
> diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.txt b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.txt
> index aa614b2..615abdd 100644
> --- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.txt
> +++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.txt
> @@ -2,8 +2,9 @@ SMI (Smart Multimedia Interface) Common
>
> The hardware block diagram please check bindings/iommu/mediatek,iommu.txt
>
> -Mediatek SMI have two generations of HW architecture, mt8173 uses the second
> -generation of SMI HW while mt2701 uses the first generation HW of SMI.
> +Mediatek SMI have two generations of HW architecture, mt2712 and mt8173 use
> +the second generation of SMI HW while mt2701 uses the first generation HW of
> +SMI.
>
> There's slight differences between the two SMI, for generation 2, the
> register which control the iommu port is at each larb's register base. But
> @@ -15,6 +16,7 @@ not needed for SMI generation 2.
> Required properties:
> - compatible : must be one of :
> "mediatek,mt2701-smi-common"
> + "mediatek,mt2712-smi-common"
> "mediatek,mt8173-smi-common"
> - reg : the register and size of the SMI block.
> - power-domains : a phandle to the power domain of this local arbiter.
> diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
> index ddf46b8..083155c 100644
> --- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
> +++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
> @@ -4,8 +4,9 @@ The hardware block diagram please check bindings/iommu/mediatek,iommu.txt
>
> Required properties:
> - compatible : must be one of :
> - "mediatek,mt8173-smi-larb"
> "mediatek,mt2701-smi-larb"
> + "mediatek,mt2712-smi-larb"
> + "mediatek,mt8173-smi-larb"
> - reg : the register and size of this local arbiter.
> - mediatek,smi : a phandle to the smi_common node.
> - power-domains : a phandle to the power domain of this local arbiter.
> @@ -15,7 +16,7 @@ Required properties:
> the register.
> - "smi" : It's the clock for transfer data and command.
>
> -Required property for mt2701:
> +Required property for mt2701 and mt2712:
> - mediatek,larb-id :the hardware id of this larb.
>
> Example:
> diff --git a/include/dt-bindings/memory/mt2712-larb-port.h b/include/dt-bindings/memory/mt2712-larb-port.h
> new file mode 100644
> index 0000000..6f9aa73
> --- /dev/null
> +++ b/include/dt-bindings/memory/mt2712-larb-port.h
> @@ -0,0 +1,95 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2017 MediaTek Inc.
> + * Author: Yong Wu <yong.wu@...iatek.com>
> + */
> +#ifndef __DTS_IOMMU_PORT_MT2712_H
> +#define __DTS_IOMMU_PORT_MT2712_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
> +
> +/* larb0 */
> +#define M4U_PORT_DISP_OVL0 MTK_M4U_ID(M4U_LARB0_ID, 0)
> +#define M4U_PORT_DISP_RDMA0 MTK_M4U_ID(M4U_LARB0_ID, 1)
> +#define M4U_PORT_DISP_WDMA0 MTK_M4U_ID(M4U_LARB0_ID, 2)
> +#define M4U_PORT_DISP_OD_R MTK_M4U_ID(M4U_LARB0_ID, 3)
> +#define M4U_PORT_DISP_OD_W MTK_M4U_ID(M4U_LARB0_ID, 4)
> +#define M4U_PORT_MDP_RDMA0 MTK_M4U_ID(M4U_LARB0_ID, 5)
> +#define M4U_PORT_MDP_WDMA MTK_M4U_ID(M4U_LARB0_ID, 6)
> +#define M4U_PORT_DISP_RDMA2 MTK_M4U_ID(M4U_LARB0_ID, 7)
> +
> +/* larb1 */
> +#define M4U_PORT_HW_VDEC_MC_EXT MTK_M4U_ID(M4U_LARB1_ID, 0)
> +#define M4U_PORT_HW_VDEC_PP_EXT MTK_M4U_ID(M4U_LARB1_ID, 1)
> +#define M4U_PORT_HW_VDEC_UFO_EXT MTK_M4U_ID(M4U_LARB1_ID, 2)
> +#define M4U_PORT_HW_VDEC_VLD_EXT MTK_M4U_ID(M4U_LARB1_ID, 3)
> +#define M4U_PORT_HW_VDEC_VLD2_EXT MTK_M4U_ID(M4U_LARB1_ID, 4)
> +#define M4U_PORT_HW_VDEC_AVC_MV_EXT MTK_M4U_ID(M4U_LARB1_ID, 5)
> +#define M4U_PORT_HW_VDEC_PRED_RD_EXT MTK_M4U_ID(M4U_LARB1_ID, 6)
> +#define M4U_PORT_HW_VDEC_PRED_WR_EXT MTK_M4U_ID(M4U_LARB1_ID, 7)
> +#define M4U_PORT_HW_VDEC_PPWRAP_EXT MTK_M4U_ID(M4U_LARB1_ID, 8)
> +#define M4U_PORT_HW_VDEC_TILE MTK_M4U_ID(M4U_LARB1_ID, 9)
> +#define M4U_PORT_HW_IMG_RESZ_EXT MTK_M4U_ID(M4U_LARB1_ID, 10)
> +
> +/* larb2 */
> +#define M4U_PORT_CAM_DMA0 MTK_M4U_ID(M4U_LARB2_ID, 0)
> +#define M4U_PORT_CAM_DMA1 MTK_M4U_ID(M4U_LARB2_ID, 1)
> +#define M4U_PORT_CAM_DMA2 MTK_M4U_ID(M4U_LARB2_ID, 2)
> +
> +/* larb3 */
> +#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_CUR_CHROMA MTK_M4U_ID(M4U_LARB3_ID, 5)
> +#define M4U_PORT_VENC_REF_CHROMA MTK_M4U_ID(M4U_LARB3_ID, 6)
> +#define M4U_PORT_VENC_CUR_LUMA MTK_M4U_ID(M4U_LARB3_ID, 7)
> +#define M4U_PORT_VENC_REF_LUMA MTK_M4U_ID(M4U_LARB3_ID, 8)
> +
> +/* larb4 */
> +#define M4U_PORT_DISP_OVL1 MTK_M4U_ID(M4U_LARB4_ID, 0)
> +#define M4U_PORT_DISP_RDMA1 MTK_M4U_ID(M4U_LARB4_ID, 1)
> +#define M4U_PORT_DISP_WDMA1 MTK_M4U_ID(M4U_LARB4_ID, 2)
> +#define M4U_PORT_DISP_OD1_R MTK_M4U_ID(M4U_LARB4_ID, 3)
> +#define M4U_PORT_DISP_OD1_W MTK_M4U_ID(M4U_LARB4_ID, 4)
> +#define M4U_PORT_MDP_RDMA1 MTK_M4U_ID(M4U_LARB4_ID, 5)
> +#define M4U_PORT_MDP_WROT1 MTK_M4U_ID(M4U_LARB4_ID, 6)
> +
> +/* larb5 */
> +#define M4U_PORT_DISP_OVL2 MTK_M4U_ID(M4U_LARB5_ID, 0)
> +#define M4U_PORT_DISP_WDMA2 MTK_M4U_ID(M4U_LARB5_ID, 1)
> +#define M4U_PORT_MDP_RDMA2 MTK_M4U_ID(M4U_LARB5_ID, 2)
> +#define M4U_PORT_MDP_WROT0 MTK_M4U_ID(M4U_LARB5_ID, 3)
> +
> +/* larb6 */
> +#define M4U_PORT_JPGDEC_WDMA_0 MTK_M4U_ID(M4U_LARB6_ID, 0)
> +#define M4U_PORT_JPGDEC_WDMA_1 MTK_M4U_ID(M4U_LARB6_ID, 1)
> +#define M4U_PORT_JPGDEC_BSDMA_0 MTK_M4U_ID(M4U_LARB6_ID, 2)
> +#define M4U_PORT_JPGDEC_BSDMA_1 MTK_M4U_ID(M4U_LARB6_ID, 3)
> +
> +/* larb7 */
> +#define M4U_PORT_MDP_RDMA3 MTK_M4U_ID(M4U_LARB7_ID, 0)
> +#define M4U_PORT_MDP_WROT2 MTK_M4U_ID(M4U_LARB7_ID, 1)
> +
> +/* larb8 */
> +#define M4U_PORT_VDO MTK_M4U_ID(M4U_LARB8_ID, 0)
> +#define M4U_PORT_NR MTK_M4U_ID(M4U_LARB8_ID, 1)
> +#define M4U_PORT_WR_CHANNEL0 MTK_M4U_ID(M4U_LARB8_ID, 2)
> +
> +/* larb9 */
> +#define M4U_PORT_TVD MTK_M4U_ID(M4U_LARB9_ID, 0)
> +#define M4U_PORT_WR_CHANNEL1 MTK_M4U_ID(M4U_LARB9_ID, 1)
> +
> +#endif
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