From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3974CC433EF for ; Tue, 4 Jan 2022 15:55:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=sujFIY0QpgG6vrv3yC8S9DGghoZSgXjMr8vCxmEQfCM=; b=nudJx1QQoG8uPS6v/d/uqPNRr4 vTGQR8ZEPxEkKiyqsrCzru9dKK48hfIrWTTk3ooTy+DiGOekgGfkdTKu22CV9h8bQ4DxsRd4YyylJ k4FPozKIbDwI61ixBS7le43x/K1n2bhbDa1D+9J1jLt+ipXUEwMHwromczebNI/UzbbIH4/KrO7gD OxmI+ve3ijWpfRHtZ4ahxWW8iKd/12EYjjViL4Z/CVcLQhor16lPGnicRTb3drCbP0ZAzGM3g/fDu 4PtEXUgKLc2mKfZMiu0imwRxINGnBy4H73aGkq1kjY3ZuMo21eBh4syJqkMzeeb6IoAyC5x72YIZI VDPpuJUQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n4m9y-00C587-Jr; Tue, 04 Jan 2022 15:55:38 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1n4m8n-00C470-DO; Tue, 04 Jan 2022 15:54:27 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: kholk11) with ESMTPSA id 5FF1A1F43593 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1641311664; bh=z8b4JgrEINeDdHaIUQNnWliGF0ifNcQlBrAvNR4lIjA=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=RIApkZCMkaFcib0aBu9CH9SoagjUf5BxhxJF4rMLq9d8min2nzflzYPa4uPoCn6Bz xQtr2frS8nyypu+J5vauINYYcwtNZA3CJ9SzP7gmHS2YTTWR9qyRTyBnl+LojUmG1S t6K7SXfjZ1LwtD6QCJPb41VsanF6DZrzmQJB1eIPniiBMHkdLzykaThTLtCd3O6IEY WYh2OaowGW6mYrkQmK3qzAfWT6XtHQiHOUrC71BUx4eVdPDo4DMknqv8L5gw31fQgY NY9U4jmNYy8qxqW6x1j1/hV25zioi207s+3xItCCFFBRKzBvXByWQnPmp6tDVtskmg g0iPgonHSmZuQ== Subject: Re: [PATCH v3 27/33] iommu/mediatek: Initialise bank HW for each a bank To: Yong Wu , Joerg Roedel , Rob Herring , Matthias Brugger , Will Deacon , Robin Murphy Cc: Krzysztof Kozlowski , Tomasz Figa , 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, Hsin-Yi Wang , youlin.pei@mediatek.com, anan.sun@mediatek.com, chao.hao@mediatek.com, yen-chang.chen@mediatek.com References: <20210923115840.17813-1-yong.wu@mediatek.com> <20210923115840.17813-28-yong.wu@mediatek.com> From: AngeloGioacchino Del Regno Message-ID: Date: Tue, 4 Jan 2022 16:54:20 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210923115840.17813-28-yong.wu@mediatek.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220104_075425_658705_8A9A350E X-CRM114-Status: GOOD ( 14.04 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Il 23/09/21 13:58, Yong Wu ha scritto: > The mt8195 IOMMU HW max support 5 banks, and regarding the banks' > registers, it looks like: > > ---------------------------------------- > |bank0 | bank1 | bank2 | bank3 | bank4| > ---------------------------------------- > |global | > |control| null > |regs | > ----------------------------------------- > |bank |bank |bank |bank |bank | > |regs |regs |regs |regs |regs | > | | | | | | > ----------------------------------------- > > Each bank has some special bank registers and it share bank0's global > control registers. this patch initialise the bank hw with the bankid. > > In the hw_init, we always initialise bank0's control register since > we don't know if the bank0 is initialised. > > Additionally, About each bank's register base, always delta 0x1000. > like bank[x + 1] = bank[x] + 0x1000. > > Signed-off-by: Yong Wu Reviewed-by: AngeloGioacchino Del Regno _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek