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 322ACC02182 for ; Tue, 21 Jan 2025 09:53:35 +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-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:References :In-Reply-To:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=oRpDJX8Oag1tNj9jk6C+ODgubNoTxxz2/C8rH2mURZ0=; b=DW4LO909c1F+Ln 1iP/vQCLQux0ZPl/h95PiOhVES7aTRX+SY7or+tBhpgHMeKVU0fynXBR0Vw2v6atEe0ZM5hiC3M8r vC9k4youO9MbytiUmB21DhnfH55nqGKSKixpbb5rhGSXYGuRwT4UOrso2HcSiK4BgjPocZnM0SmNs Q9EaCVUHbzyGIQ1+17mqQjku/kGYAvfVXwuEjaTiLHFm9qFeGTaERltPH28H4IHMUNEJVedJZZqOJ EBL6vzQDNj43HU7gV969ac7YFoAAXjMFKyeZsa27N9euNJgGcvhAWzGWpTdVNlHDxv5kKcfT4sURK vhXRZwj9FQaECMDZhwLg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1taAwv-00000007TQ8-3K5T; Tue, 21 Jan 2025 09:53:33 +0000 Received: from relay9-d.mail.gandi.net ([2001:4b98:dc4:8::229]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1taAws-00000007TPa-3kgA for linux-mtd@lists.infradead.org; Tue, 21 Jan 2025 09:53:32 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id A2ED3FF811; Tue, 21 Jan 2025 09:53:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1737453207; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=G+c6kQoGMII5VVsutdEuxvBRff1dE5WdMaDtL/pUrqU=; b=DjwuNruNGDTiV/G6vejkSBTSpcBLSk3yVsf6RR7t/BviF9sNhEXHYAUC7FqQMu0pJwIDDF AziEnKbIk4Wrp0G201/tESCyRdTKQUw6yX7sWiF28of7bnTwlPAAcIHsTs+8BtffBV/tsS pfYex/+amlQ2HyWPl1ENdOucWoURjvSajsQDrh2AQy6QHU4zg1OG1wdFWnHcjYlHsJNbnt MrTz7Y/GDU+VA0uzBzDOgE4Kyu/F0dpHb55U0juMNGpa2F/0MmWjq4yCEodMr0k/euWV3i 3RXF/rrXcX+HxlldP6eeB84vha9yj2vKmlONYCgVfBphz83hzzr7Eg11vS75dw== From: Miquel Raynal To: niravkumar.l.rabara@intel.com Cc: Richard Weinberger , Vignesh Raghavendra , linux@treblig.org, Shen Lichuan , Jinjie Ruan , u.kleine-koenig@baylibre.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH v2 2/3] mtd: rawnand: cadence: use dma_map_resource for sdma address In-Reply-To: <20250116032154.3976447-3-niravkumar.l.rabara@intel.com> (niravkumar l. rabara's message of "Thu, 16 Jan 2025 11:21:53 +0800") References: <20250116032154.3976447-1-niravkumar.l.rabara@intel.com> <20250116032154.3976447-3-niravkumar.l.rabara@intel.com> User-Agent: mu4e 1.12.7; emacs 29.4 Date: Tue, 21 Jan 2025 10:53:26 +0100 Message-ID: <87ed0wpk6h.fsf@bootlin.com> MIME-Version: 1.0 X-GND-Sasl: miquel.raynal@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250121_015331_083114_E418AF4B X-CRM114-Status: UNSURE ( 6.33 ) X-CRM114-Notice: Please train this message. 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arc=none smtp.client-ip=217.70.183.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="DjwuNruN" Received: by mail.gandi.net (Postfix) with ESMTPSA id A2ED3FF811; Tue, 21 Jan 2025 09:53:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1737453207; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=G+c6kQoGMII5VVsutdEuxvBRff1dE5WdMaDtL/pUrqU=; b=DjwuNruNGDTiV/G6vejkSBTSpcBLSk3yVsf6RR7t/BviF9sNhEXHYAUC7FqQMu0pJwIDDF AziEnKbIk4Wrp0G201/tESCyRdTKQUw6yX7sWiF28of7bnTwlPAAcIHsTs+8BtffBV/tsS pfYex/+amlQ2HyWPl1ENdOucWoURjvSajsQDrh2AQy6QHU4zg1OG1wdFWnHcjYlHsJNbnt MrTz7Y/GDU+VA0uzBzDOgE4Kyu/F0dpHb55U0juMNGpa2F/0MmWjq4yCEodMr0k/euWV3i 3RXF/rrXcX+HxlldP6eeB84vha9yj2vKmlONYCgVfBphz83hzzr7Eg11vS75dw== From: Miquel Raynal To: niravkumar.l.rabara@intel.com Cc: Richard Weinberger , Vignesh Raghavendra , linux@treblig.org, Shen Lichuan , Jinjie Ruan , u.kleine-koenig@baylibre.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH v2 2/3] mtd: rawnand: cadence: use dma_map_resource for sdma address In-Reply-To: <20250116032154.3976447-3-niravkumar.l.rabara@intel.com> (niravkumar l. rabara's message of "Thu, 16 Jan 2025 11:21:53 +0800") References: <20250116032154.3976447-1-niravkumar.l.rabara@intel.com> <20250116032154.3976447-3-niravkumar.l.rabara@intel.com> User-Agent: mu4e 1.12.7; emacs 29.4 Date: Tue, 21 Jan 2025 10:53:26 +0100 Message-ID: <87ed0wpk6h.fsf@bootlin.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-GND-Sasl: miquel.raynal@bootlin.com Hello, On 16/01/2025 at 11:21:53 +08, niravkumar.l.rabara@intel.com wrote: > From: Niravkumar L Rabara > > Map the slave DMA I/O address using dma_map_resource. > When ARM SMMU is enabled, using a direct physical address of SDMA results > in DMA transaction failure. It is in general a better practice anyway. Drivers should be portable and always remap resources. > Fixes: ec4ba01e894d ("mtd: rawnand: Add new Cadence NAND driver to MTD su= bsystem") > Cc: stable@vger.kernel.org > Signed-off-by: Niravkumar L Rabara Thanks, Miqu=C3=A8l