Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: [PATCH 01/21] dt-binding: memory: mediatek: Add a common
 larb-port header file
To:     Yong Wu <yong.wu@mediatek.com>, Joerg Roedel <joro@8bytes.org>,
        Rob Herring <robh+dt@kernel.org>,
        Robin Murphy <robin.murphy@arm.com>
Cc:     Will Deacon <will@kernel.org>, Evan Green <evgreen@chromium.org>,
        Tomasz Figa <tfiga@google.com>,
        linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        iommu@lists.linux-foundation.org, youlin.pei@mediatek.com,
        Nicolas Boichat <drinkcat@chromium.org>, anan.sun@mediatek.com,
        cui.zhang@mediatek.com, chao.hao@mediatek.com,
        ming-fan.chen@mediatek.com
References: <20200711064846.16007-1-yong.wu@mediatek.com>
 <20200711064846.16007-2-yong.wu@mediatek.com>
From:   Matthias Brugger <matthias.bgg@gmail.com>
Message-ID: <9e21288c-07da-88b0-2dbb-bd9a2a4d529b@gmail.com>
Date:   Sun, 12 Jul 2020 20:06:17 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
 Thunderbird/68.9.0
MIME-Version: 1.0
In-Reply-To: <20200711064846.16007-2-yong.wu@mediatek.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk


On 11/07/2020 08:48, Yong Wu wrote:
> Put all the macros about smi larb/port togethers, this is a preparing
> patch for extending LARB_NR and adding new dom-id support.
> 
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> ---
>   include/dt-bindings/memory/mt2712-larb-port.h  |  2 +-
>   include/dt-bindings/memory/mt6779-larb-port.h  |  2 +-
>   include/dt-bindings/memory/mt8173-larb-port.h  |  2 +-
>   include/dt-bindings/memory/mt8183-larb-port.h  |  2 +-
>   include/dt-bindings/memory/mtk-smi-larb-port.h | 15 +++++++++++++++
>   5 files changed, 19 insertions(+), 4 deletions(-)
>   create mode 100644 include/dt-bindings/memory/mtk-smi-larb-port.h
> 
> diff --git a/include/dt-bindings/memory/mt2712-larb-port.h b/include/dt-bindings/memory/mt2712-larb-port.h
> index 6f9aa7349cef..b6b2c6bf4459 100644
> --- a/include/dt-bindings/memory/mt2712-larb-port.h
> +++ b/include/dt-bindings/memory/mt2712-larb-port.h
> @@ -6,7 +6,7 @@
>   #ifndef __DTS_IOMMU_PORT_MT2712_H
>   #define __DTS_IOMMU_PORT_MT2712_H
>   
> -#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
> +#include <dt-bindings/memory/mtk-smi-larb-port.h>
>   
>   #define M4U_LARB0_ID			0
>   #define M4U_LARB1_ID			1
> diff --git a/include/dt-bindings/memory/mt6779-larb-port.h b/include/dt-bindings/memory/mt6779-larb-port.h
> index 2ad0899fbf2f..60f57f54393e 100644
> --- a/include/dt-bindings/memory/mt6779-larb-port.h
> +++ b/include/dt-bindings/memory/mt6779-larb-port.h
> @@ -7,7 +7,7 @@
>   #ifndef _DTS_IOMMU_PORT_MT6779_H_
>   #define _DTS_IOMMU_PORT_MT6779_H_
>   
> -#define MTK_M4U_ID(larb, port)		 (((larb) << 5) | (port))
> +#include <dt-bindings/memory/mtk-smi-larb-port.h>
>   
>   #define M4U_LARB0_ID			 0
>   #define M4U_LARB1_ID			 1
> diff --git a/include/dt-bindings/memory/mt8173-larb-port.h b/include/dt-bindings/memory/mt8173-larb-port.h
> index 9f31ccfeca21..d8c99c946053 100644
> --- a/include/dt-bindings/memory/mt8173-larb-port.h
> +++ b/include/dt-bindings/memory/mt8173-larb-port.h
> @@ -6,7 +6,7 @@
>   #ifndef __DTS_IOMMU_PORT_MT8173_H
>   #define __DTS_IOMMU_PORT_MT8173_H
>   
> -#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
> +#include <dt-bindings/memory/mtk-smi-larb-port.h>
>   
>   #define M4U_LARB0_ID			0
>   #define M4U_LARB1_ID			1
> diff --git a/include/dt-bindings/memory/mt8183-larb-port.h b/include/dt-bindings/memory/mt8183-larb-port.h
> index 2c579f305162..275c095a6fd6 100644
> --- a/include/dt-bindings/memory/mt8183-larb-port.h
> +++ b/include/dt-bindings/memory/mt8183-larb-port.h
> @@ -6,7 +6,7 @@
>   #ifndef __DTS_IOMMU_PORT_MT8183_H
>   #define __DTS_IOMMU_PORT_MT8183_H
>   
> -#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
> +#include <dt-bindings/memory/mtk-smi-larb-port.h>
>   
>   #define M4U_LARB0_ID			0
>   #define M4U_LARB1_ID			1
> diff --git a/include/dt-bindings/memory/mtk-smi-larb-port.h b/include/dt-bindings/memory/mtk-smi-larb-port.h
> new file mode 100644
> index 000000000000..2ec7fe5ce4e9
> --- /dev/null
> +++ b/include/dt-bindings/memory/mtk-smi-larb-port.h
> @@ -0,0 +1,15 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Copyright (c) 2020 MediaTek Inc.
> + * Author: Yong Wu <yong.wu@mediatek.com>
> + */
> +#ifndef __DTS_MTK_IOMMU_PORT_H_
> +#define __DTS_MTK_IOMMU_PORT_H_
> +
> +#define MTK_LARB_NR_MAX			16

include/soc/mediatek/smi.h has the very same define.
Should smi.h include this file?

Regards,
Matthias

> +
> +#define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
> +#define MTK_M4U_TO_LARB(id)		(((id) >> 5) & 0xf)
> +#define MTK_M4U_TO_PORT(id)		((id) & 0x1f)
> +
> +#endif
>