From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) (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 905042F2C7D for ; Thu, 3 Jul 2025 19:29:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751571001; cv=none; b=AY9JgAo0htLjluxjE7A+fz2tD4UNFS9RKG+UhZ1tWJ6QKPk8eg9MhZhMNooc2lOBLk0ussYwLrSaDKdNemeMbiZYL6f/rjvR+Q8q+W/fJ0hQxjaHTZuGEsOQClRSQ41m6r8Fu8psjVoMnVmXm/fBBLSgsaCaxh/EaMW2zH7K5Iw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751571001; c=relaxed/simple; bh=S5LofzUEXpq1vyCwo3YZcP+hQsGsFW0lU5QbNdytI7I=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ddFsB1lXEFPCKqemmiDmLq1jom80FdLVLrIcBWtLHqedmo+LuhjrFCFYflezQMRDfrNhtFjnf5i1+3v7Kmv1/IPQWWEEcNgXPlmfWaV4sFUV6lsT/HWQ+4fafYy9rVk7ZEQlEYCxK5VIj78QWM5Ywl/Pu4cvi+oKv6a8FfG1P5Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=cEiKHGt4; arc=none smtp.client-ip=198.175.65.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="cEiKHGt4" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1751571000; x=1783107000; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=S5LofzUEXpq1vyCwo3YZcP+hQsGsFW0lU5QbNdytI7I=; b=cEiKHGt4uhUoqQJrj50jHHAsYspKmgmVIW5/yhkQgN0oZ3VFin1bxYuZ KuxN9MuZwcBRR6ERl1mAOapcZRHczReK1F3gNZssOgYPXdHJ0/da0IarB lIZtT7WhJBUxuyvKQczAJKRrTZQI8diom5zjvxu65bgUVlHLiIhaxwDSD lcICqnP6LuG7mpqqSp4VdnvC0PqK8rF4YPnAb5lj+6Z7GCUze6T56YUdJ SdcUN/ywTaQkylBZNuW0Lr8MTq7T3V5BNqg7Pm9KvFEMh/GK4zNQRXiHK CDd1CkQJCS/4YwvMd6YchP7UjYQkyOg1VQhg3jBiCvppqFO76VsjWt/zq A==; X-CSE-ConnectionGUID: WGTmeNBLSCqFzyS/qJ3AuA== X-CSE-MsgGUID: bZ2qWoJcSwSIkRQ1FsHTIA== X-IronPort-AV: E=McAfee;i="6800,10657,11483"; a="54024336" X-IronPort-AV: E=Sophos;i="6.16,285,1744095600"; d="scan'208";a="54024336" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jul 2025 12:30:00 -0700 X-CSE-ConnectionGUID: gJ+8UEYCShSEF1UXpBmqjg== X-CSE-MsgGUID: ktih2KroQKWMHOuYOaJtxQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,285,1744095600"; d="scan'208";a="185399038" Received: from tassilo.jf.intel.com (HELO tassilo) ([10.54.38.190]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jul 2025 12:29:58 -0700 Date: Thu, 3 Jul 2025 12:29:57 -0700 From: Andi Kleen To: Lukas Wunner Cc: David Airlie , Bjorn Helgaas , Ben Hutchings , Joerg Roedel , Suravee Suthikulpanit , Ahmed Salem , Borislav Petkov , Hans de Goede , Thomas Gleixner , dri-devel@lists.freedesktop.org, iommu@lists.linux.dev, linux-pci@vger.kernel.org Subject: Re: [PATCH v2] agp/amd64: Check AGP Capability before binding to unsupported devices Message-ID: References: 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: I suspect these days it would be also reasonable to drop it this old hack. If any of these old chipsets are still missing I would rather adds its PCI-ID. There will be certainly not any new unknown ones for these old CPUs. Also there shouldn't be that many high speed devices that need the old 4GB IOMMU anyways, and for low speed ones it's fine to use swiotlb instead. -Andi