From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f44.google.com (mail-ot1-f44.google.com [209.85.210.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 407AD7EEF2 for ; Mon, 29 Apr 2024 15:00:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714402859; cv=none; b=L7dBsxnz/CzLysH2NZhNBR2rIVAERizIp2tI+51TVARAmEjVGjn2TO5bLABr5tCfaK48NssN943LmbA891iwQeyaPz3ZZnoPL21eDasggkl74HbGEADrU6G7wZpBmKv7ggZINJoPMxIFZ3SKosuuGNIA5pbfB6iO62dxzZ/8vVg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714402859; c=relaxed/simple; bh=ptyag3zULY46EE3cfrjM8Ikvapm7FareWHtUvzj3mxc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=cJ8Xv6nOsgLyuQAnUI4t5CAsk5PPxt5a70SzMF441e00Q4SYokHlU9ou8uApebt6gtJfPp1oqPlKNbuyPjkhVCwOJW/zLzvles5hc48cieTIbJLRfQJbGk3tYkTAg7tAAcfYBbmScT8EKo9jmoUPl9qDwFnQkkZ/2MPrszYkY3M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ziepe.ca; spf=pass smtp.mailfrom=ziepe.ca; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b=aAZ4Ni5R; arc=none smtp.client-ip=209.85.210.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ziepe.ca Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ziepe.ca Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="aAZ4Ni5R" Received: by mail-ot1-f44.google.com with SMTP id 46e09a7af769-6ee4dcc4567so322527a34.3 for ; Mon, 29 Apr 2024 08:00:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; t=1714402857; x=1715007657; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=Zs9gDn4gEwMrdg5ATdgVAkw08vBW0VJzGDrdK3qnGyI=; b=aAZ4Ni5RU7GR/wPN8ZHh3zjSKkTeI5MzTtMpUBN1cmF+7RmslD7JS7lfoxiovHxgbb 6Jo8HDKHipzL4OQCy4DdP6qo+8O/64Anr2WbYdJwKALBu7XtLXsZhGARjpsT5qQtS8Ln ihXT7Pv6oUX9+zIsep5ODDS3Ozt+YRwXODegYXb4k8wrpuX3bkamJKE7AWsbRk6KOhjN JLoVBtSrC2odtUGQU41xya9qqhl5/thkC884EIT0sRQ3VHqHbFEOYYuAogbfLTR2jS3Z yYC1bhMEOAF2e+R9rtquXDo1z8LxtQ1K4A9H0BOL5XOWQTd882VcAfw2Dv2+KLKPnMtj ZswA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714402857; x=1715007657; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Zs9gDn4gEwMrdg5ATdgVAkw08vBW0VJzGDrdK3qnGyI=; b=XLAcdGlKm4OPI03+YEBTOH5fd+ErjZg5rbBs1msFxLGpoTjUEd7gebNCi8FGNCfJHW HaUqMj1kLlT0VyRkOlyahBKDQ7SCS/rKe9sdbF5/8oe3LCMfYV46yyPiAXvFgdqegI+S eAHfYcn6744Iv0Z+9Uy4OFiyRqQrpK8ve/sq0Vgg2M7E9MIsQcfTLrpKciChVetn0J5I KvFSQD+k7KrE7qtJiWBOPtk+HKpmjAtymHudWCsv4breaW5Rt/D4xHGGNZFjbpruFPmW U8JK0x8izshy+nllqYxRZDmuDZqhT/+HJ+NiXRO55ANi5xaEhyBBufGNKT9EQqZzJwIm aV0g== X-Forwarded-Encrypted: i=1; AJvYcCUJJn8eT9H7DaZVttW56XEgCJvhz+BNN/VgmsuapwXMguzv4Gbg/iGkMsuEmk2ukbM8HH8ouS+ZimFpg1nRx93AznyvUtLybfV/ X-Gm-Message-State: AOJu0YzmXNKRcgf39QZFHW7/0MeGm2p4z+AGrND58ggjrYCK2pzBITGF 1IZ15jrwfCgS4OASBRNzCEzfMHhK+ElGMCssr7CXCK4zi251JQi4lNdJfB89lOc= X-Google-Smtp-Source: AGHT+IHmbKK9Qyx4FAjBmnBgz0h7jK0zmwVhyAhO2G/acRzTXIKNs7HZYL8cXLLvumgIQCohXl67Tw== X-Received: by 2002:a9d:7a58:0:b0:6ee:4081:2e7 with SMTP id z24-20020a9d7a58000000b006ee408102e7mr2008732otm.0.1714402857407; Mon, 29 Apr 2024 08:00:57 -0700 (PDT) Received: from ziepe.ca (hlfxns017vw-142-68-80-239.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.68.80.239]) by smtp.gmail.com with ESMTPSA id o15-20020a05620a0d4f00b0078ee090baa3sm10508476qkl.10.2024.04.29.08.00.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Apr 2024 08:00:56 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.95) (envelope-from ) id 1s1SUy-001XRE-DN; Mon, 29 Apr 2024 12:00:56 -0300 Date: Mon, 29 Apr 2024 12:00:56 -0300 From: Jason Gunthorpe To: Jean-Philippe Brucker Cc: will@kernel.org, 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 2/3] iommu/of: Support ats-supported device-tree property Message-ID: <20240429150056.GP231144@ziepe.ca> References: <20240429113938.192706-2-jean-philippe@linaro.org> <20240429113938.192706-4-jean-philippe@linaro.org> 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: <20240429113938.192706-4-jean-philippe@linaro.org> On Mon, Apr 29, 2024 at 12:39:38PM +0100, Jean-Philippe Brucker wrote: > Device-tree declares whether a PCI root-complex supports ATS by setting > the "ats-supported" property. Copy this flag into device fwspec to let > IOMMU drivers quickly check if they can enable ATS for a device. > > Signed-off-by: Jean-Philippe Brucker > Tested-by: Ketan Patil > --- > drivers/iommu/of_iommu.c | 9 +++++++++ > 1 file changed, 9 insertions(+) Reviewed-by: Jason Gunthorpe Jason