From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 962E61422A6; Mon, 1 Jul 2024 11:57:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719835050; cv=none; b=QAJkYmR7ziBWb5qZK3Uxv5cYz105jNx+VhFwG1T27VqkMzQCmP7u7rd1/k5MmfjSXHAGgNhPKRAQ/TbdcEA9PpyAtJfZQF7c9hFRteEKN1KEAtGHV8yQXFpwCE9lReDfADIdZjqHdyD6aB8kqLq1fKg+TPh20WuzNNjyyL6SUY8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719835050; c=relaxed/simple; bh=hzmzErIa14odgkFiGOmGNMUeyolu8zX2etABDTkla90=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=oqmAH+YzmQtlm5+q+szrCoYmxHw4DHRCrGx1T3F8JJMsmxwyBcVMvTQRmjU4h0EuBMfMiqY6thGCySgTVsb0V9RgH4wb+1Su1mgxJ2Ddxk38cThphurAMKJaevHCdnwrfqYcSm2xzSJ50x5MRgWqIYunEJvQB3Qe608pCpfQ840= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G56Y/Su9; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="G56Y/Su9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F873C116B1; Mon, 1 Jul 2024 11:57:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1719835050; bh=hzmzErIa14odgkFiGOmGNMUeyolu8zX2etABDTkla90=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=G56Y/Su9chR8vStNUMCKGsKq5ePJtlZMhhpmqlWbeUKuCdMezGkSAOL4jSl7YA/QL BzMU38h/Vrvdzs2VzOKYtvX3E1Tnxzi4KzFRIOpJprR+S4R9A8GCMi7TlJQ4WpF0+O Ldwkd4eNZelD9OF/h+XsnYXqqTbF8DlwOsI507GJThGgy/GeT6pB0N0Z359w/YY+TW INT+nuTow3N94NRCEx4hPHqbaVJDx0tyI39Ic0bkqavKJmG7ThRO9haz0UYUO4dAot tf1B97UsuPagnlL4mAiTJXOhGXN7Wajm1Itm8P3QpLtXVF2oJ8kMo+sevRAVYAciwO oH/sSRSmOsOYQ== Date: Mon, 1 Jul 2024 12:57:23 +0100 From: Will Deacon To: Jean-Philippe Brucker Cc: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzk+dt@kernel.org, conor+dt@kernel.org, liviu.dudau@arm.com, sudeep.holla@arm.com, joro@8bytes.org, robin.murphy@arm.com, nicolinc@nvidia.com, ketanp@nvidia.com, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org Subject: Re: [PATCH v2 0/3] Enable PCIe ATS for devicetree boot Message-ID: <20240701115723.GA1732@willie-the-truck> References: <20240607105415.2501934-2-jean-philippe@linaro.org> <20240701102400.GA2414@myrica> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240701102400.GA2414@myrica> User-Agent: Mutt/1.10.1 (2018-07-13) On Mon, Jul 01, 2024 at 11:24:00AM +0100, Jean-Philippe Brucker wrote: > On Fri, Jun 07, 2024 at 11:54:13AM +0100, Jean-Philippe Brucker wrote: > > Before enabling Address Translation Support (ATS) in endpoints, the OS > > needs to confirm that the Root Complex supports it. Obtain this > > information from the firmware description since there is no architected > > method. ACPI provides a bit via IORT tables, so add the devicetree > > equivalent. > > > > Since v1 [1] I added the review and ack tags, thanks all. This should be > > ready to go via the IOMMU tree. > > This series enables ATS for devicetree boot, and is needed on an Nvidia > system: https://lore.kernel.org/linux-arm-kernel/ZeJP6CwrZ2FSbTYm@Asurada-Nvidia/ > > Would you mind picking it up for v6.11? I'll take a look. Will