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 F3B4DC3ABD8 for ; Fri, 16 May 2025 07:06:18 +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:Content-Type:MIME-Version: References:In-Reply-To:Subject:Cc:To:From:Message-ID: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=yGTBJSMqk9HRB+Yf6qBFrPnv8KFjcvEAodpnrFhjLo8=; b=0DsSrhykjyTAR5qS3cazlEIkoa YX7BecFAXk0xbJsA6RGQ9Gw2vZXgH6AUvoU73j44p2xgNJmkj0XtJ/L6aFuRmMoiuboyZ7UKOr+Hn GYMePPeLwHCknv600axY6qKp4LVGDwyi0WUe25l+3vVMHFtRDguAV8lgBmtvdU8jT/JdKUDabB8Br Ws10HVZqJ2n3/hLxz5bAbD4fGPrMthObo7T2i5K9OMpDHb7ndc0YL//yZgebXDFOHodU/pHJxhzJb mI12QSFvO6Op0RylsjhxJaWuhQnzE21lpMytuLnDHuR57DDD9soaA+FBreYQotfb3ZrAJojkRiD6s X+BO/MHQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uFp90-00000002dRI-0xwa; Fri, 16 May 2025 07:06:10 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uFp6r-00000002dGD-2HN8 for linux-arm-kernel@lists.infradead.org; Fri, 16 May 2025 07:03:58 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 8981A5C3D04; Fri, 16 May 2025 07:01:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 78D05C4CEE4; Fri, 16 May 2025 07:03:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747379036; bh=BSOuz0Sa7NnM27jLiJyPK8CIt/5UN80833LDwnsMzN8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=N+Dv1/8Q1cgZN/Y++AHMGsWADynJKYdRP8jW01IKZ6dz3QrY9iC6aNokjBOa8iC6l /04aAzMecEWdquyQtHN8u2sL6c6nEE+NW+lvWw+os9sPeu2YBFPG19TeXY0DXq3zYf tPybNfh1OU/VNQMN8WNoDRWuSxcILXxK1LZ7NfByw2LLLvtwe/GQBLNSsN0QVF8a2h oG6XQahOhUEGS56gl8iI6NLCSo6pRFMklCccjeFVnH0erxDkunfbf2z53rJkMT/y+u O7mL0V1vgYPqDw1Wzz3O+nFAARBvnhMpWqHR7DHpXhFaFln8VjPrH2F4n8Oz8tsSAU U5LT5sy3KXyEA== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1uFp6o-00FTKu-4X; Fri, 16 May 2025 08:03:54 +0100 Date: Fri, 16 May 2025 08:03:53 +0100 Message-ID: <86h61lf352.wl-maz@kernel.org> From: Marc Zyngier To: adrianhoyin.ng@altera.com Cc: dinguyen@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] Add quirk to support address bus size limitation In-Reply-To: References: User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/30.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: adrianhoyin.ng@altera.com, dinguyen@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250516_000357_628443_FB3383CE X-CRM114-Status: GOOD ( 15.33 ) 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 Fri, 16 May 2025 05:13:31 +0100, adrianhoyin.ng@altera.com wrote: > > From: Adrian Ng Ho Yin > > This patch set adds support for the address bus size limitation by > allocating buffers with in a 32 bit address range. > > -Add device tree binding to enable a quirk to support a limited address > bus size. > -Update ITS node for Agilex5 with dma_32bit_quirk. > -Add implementation to configure gfp flags to allocate buffers within > 32 bit addressable range when quirk is set. No. Please join the pack of other totally broken integrations and reuse the *existing* infrastructure. You'll be in good company. M. -- Without deviation from the norm, progress is not possible.