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 04E15CD3431 for ; Wed, 4 Sep 2024 10:40:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:CC:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=u4MwSTXsohCD+Bwq1qmj42jZwugtsKWFnbQOJvseaGo=; b=qjLLt+d8+S10kCqLYs4N/agWw9 sn5rt70hM9TZ/S262KriUTiXyF1Ams35++TQAOzgPRZSmutsRhiAUnqpMr5R33Hmor3Be9xUxKWIp JamL+k3wVPBo5Y++M0GVzmhAlvwbttd2z+QrRQf7Jd76Q40vjkjRR22bSEg42S4/Z2baB5GuXM+xL aQw6FWcfg5psJTUPX4M0BTbeB2SzkzYS+EuZXvAFsJw7AqHSYGi3rEJDM2WtjFnMkLp3+MHhlkkaY f/UedwXu0HnnlglPOsuWbTwe2zBOT4FBH7CXTJEn2T1VmFrr2pyXDi4eqGuPNAGmaPUAAVIcaDchW N1H8KwQw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1slnQd-00000003xgK-1AYM; Wed, 04 Sep 2024 10:39:59 +0000 Received: from fllv0016.ext.ti.com ([198.47.19.142]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sln4T-00000003rt3-1rkJ for linux-arm-kernel@lists.infradead.org; Wed, 04 Sep 2024 10:17:07 +0000 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 484AGwMr021180; Wed, 4 Sep 2024 05:16:58 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1725445018; bh=u4MwSTXsohCD+Bwq1qmj42jZwugtsKWFnbQOJvseaGo=; h=Date:From:To:CC:Subject:References:In-Reply-To; b=YV+mZJVhnAyqUI2XKuUDiaqi8JdCwHsZf4VaDoe8qqDXuscKYC5tqw1xqm7Eygh8Y 82gMZvUYpPBx7L4vV0zbk6xqac3OSF7mWJMXp9rDmCgeA/JN4vHEunT/WlMy+Crcj7 yuKyhnjAT7BrLO5+zVLk8qZDWYbb+N5ltv5HXDZc= Received: from DFLE104.ent.ti.com (dfle104.ent.ti.com [10.64.6.25]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 484AGv32029998 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 4 Sep 2024 05:16:58 -0500 Received: from DFLE100.ent.ti.com (10.64.6.21) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Wed, 4 Sep 2024 05:16:57 -0500 Received: from lelvsmtp5.itg.ti.com (10.180.75.250) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Wed, 4 Sep 2024 05:16:57 -0500 Received: from localhost (uda0492258.dhcp.ti.com [10.24.72.81]) by lelvsmtp5.itg.ti.com (8.15.2/8.15.2) with ESMTP id 484AGuOH041850; Wed, 4 Sep 2024 05:16:57 -0500 Date: Wed, 4 Sep 2024 15:46:56 +0530 From: Siddharth Vadapalli To: Jan Kiszka CC: Nishanth Menon , Santosh Shilimkar , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , , , , , Siddharth Vadapalli , Bao Cheng Su , Hua Qian Li , Diogo Ivo , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Bjorn Helgaas Subject: Re: [PATCH v4 2/7] dt-bindings: PCI: ti,am65: Extend for use with PVU Message-ID: <6d722868-271a-485b-a7af-e2449adc83ca@ti.com> References: <28d31a14fe9cc1867f023ebaddd6074459d15e40.1725444016.git.jan.kiszka@siemens.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <28d31a14fe9cc1867f023ebaddd6074459d15e40.1725444016.git.jan.kiszka@siemens.com> X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240904_031705_599413_E62562CF X-CRM114-Status: GOOD ( 16.89 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Sep 04, 2024 at 12:00:11PM +0200, Jan Kiszka wrote: > From: Jan Kiszka > > The PVU on the AM65 SoC is capable of restricting DMA from PCIe devices > to specific regions of host memory. Add the optional property > "memory-regions" to point to such regions of memory when PVU is used. > > Since the PVU deals with system physical addresses, utilizing the PVU > with PCIe devices also requires setting up the VMAP registers to map the > Requester ID of the PCIe device to the CBA Virtual ID, which in turn is > mapped to the system physical address. Hence, describe the VMAP > registers which are optionally unless the PVU shall used for PCIe. The last line above seems to be accidentally modified when compared to the one at: https://lore.kernel.org/r/ada462d5-157a-4e11-ba25-d412a2bb678f@ti.com/ "Hence, describe the VMAP registers which are optionally configured whenever PVU is used for PCIe." If you intended to modify it, then the sentence appears distorted. Regards, Siddharth.