From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from PH0PR06CU001.outbound.protection.outlook.com (mail-westus3azon11011046.outbound.protection.outlook.com [40.107.208.46]) (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 D76344322E7; Thu, 13 Aug 2026 21:02:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.208.46 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786654962; cv=fail; b=R3yVHR2xngbdkBV1IGsbv5VBtPgtjNwpy9ajI8HKTFkSkWGjxF03XIwZGi2dqFfes8Frr5Xcj5HNeR0YiZEaarvj9rNu4khuO7LloKOzQpH/0UZnzvbWhrKeHN3SVvZDyx7JKqsp4KuEIXWRmF9W0CDbBGnPg/DMTm1+T9k/1xo= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786654962; c=relaxed/simple; bh=0r/FKFDIBkBEjU8e4ulCxxtc2+1FAFwrFcxDD53RrVk=; h=Message-ID:Date:MIME-Version:Subject:To:CC:References:From: In-Reply-To:Content-Type; b=tpDhJ1eGAsIaMB53QVrfHXywFrza0J7batPM7VTIrwUNbSwUqYV1T08PhP2GA1Lhm2/iZyulxdw7soqyf4Y/jYn+mJkDELXLSJmn5ZVxTcr0uLKDPlAIeW0Ck63R/r+yWWWy7+OOrucri4jYGAqDVs4mc+k4gH3q/1q82JSnBec= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=CKh4eK9K; arc=fail smtp.client-ip=40.107.208.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="CKh4eK9K" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=VZJ9x6+gf27kcKzcTLA4SCQBBOG3m82g9P4SXBNpLzjh4vqZU24zLRGC5106T5I9xRwPXGblQNYCDo81cHvpvchOEqgJi2+A+gvnX/1V/Uwh96Cu2Nn3rOfD1pdQvSpkKL1tTd48jrVrrU4fTE/8JAo59/mujpZecmtCx7tT8I6S8AQi1WZZmMpNSByD+TK39CfHwCzBVLAvjyUliDiltlvVH5vbVsHLvGgk6qBUzAN9noWLMwZDevoQ7m9vfBLZsYWBo0+Q/DxNYacRO4k6NtB2RKmheEBxGRHzULXqCMiX3RJ4MNXmJETH82xaZzHfDLkYkcqPOt5nohvymcvbHg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=NVnqbBE4wqikU6PFQ9OmS9gRKQjh/RFYL6OHqRlb+rg=; b=LNZtYpDAa3w9SuBLyHGlA1KjXUWz1YVOvhnY63iBQLnQpf9mvGhKwXZhoowus3YttFppje8N2VuOQZ7y08utz+Wcqwxt+sEz2t2dpduwrLbhtcwdQsnh2YG11rvSyiy9ZGM5Ip37EoyMpxi4cOq9cabWTJVMvTvarbajeys2DHmoEWFxb6iESW+SfHksXVCf/e4yNG7I9IMxgdETKFklL9oIDXKFRaV1pAyl/34QOkVDlQsWRd7HnpAAxW40iuarX8P1dClBeLbviJG1E/OiJeaGGeM9N1+s3N0BEjTefUNw+BeJOVVbQqMLyVB6blYS7gXWaQN0OLucFLWMMjJ8FQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=kaitmazov.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=NVnqbBE4wqikU6PFQ9OmS9gRKQjh/RFYL6OHqRlb+rg=; b=CKh4eK9KH/vIceArcJgAhdTSYcSpmQndZ3TVpMNU/4NAkvtDedkWNZHcZMotYhSPaIBxHkC3KUvmzRnhLv4ZLPop345OChCqNTZZiLynEICY6QcxwDsemmqIEeXqW/aVWrtkOUP1yZQLKSEDw3E6WmjDI+dfu1PYC371dNwyKHU= Received: from DS7P220CA0044.NAMP220.PROD.OUTLOOK.COM (2603:10b6:8:224::30) by BL1PR12MB5994.namprd12.prod.outlook.com (2603:10b6:208:39a::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.292.25; Thu, 13 Aug 2026 21:02:29 +0000 Received: from DS1PEPF00017099.namprd05.prod.outlook.com (2603:10b6:8:224:cafe::18) by DS7P220CA0044.outlook.office365.com (2603:10b6:8:224::30) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.315.15 via Frontend Transport; Thu, 13 Aug 2026 21:02:28 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C Received: from satlexmb07.amd.com (165.204.84.17) by DS1PEPF00017099.mail.protection.outlook.com (10.167.18.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.339.3 via Frontend Transport; Thu, 13 Aug 2026 21:02:28 +0000 Received: from satlexmb07.amd.com (10.181.42.216) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45; Thu, 13 Aug 2026 16:02:28 -0500 Received: from [172.19.71.207] (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server id 15.2.2562.45 via Frontend Transport; Thu, 13 Aug 2026 16:02:27 -0500 Message-ID: <9e7444c7-7a2a-5946-6197-86676de0cbb2@amd.com> Date: Thu, 13 Aug 2026 14:02:27 -0700 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v2 0/5] accel/amdxdna: honour the SYNC_BO range Content-Language: en-US To: Taimuraz Kaitmazov , Alex Deucher , =?UTF-8?Q?Christian_K=c3=b6nig?= CC: Min Ma , Oded Gabbay , "Sumit Semwal" , Max Zhen , Sonal Santan , , , References: <20260811231351.1011244-1-taimuraz@kaitmazov.com> <9420bbe5-46a3-84be-eae8-596bc42bddac@amd.com> <20260813195059.149991-1-taimuraz@kaitmazov.com> <20260813201416.158728-1-taimuraz@kaitmazov.com> From: Lizhi Hou In-Reply-To: <20260813201416.158728-1-taimuraz@kaitmazov.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF00017099:EE_|BL1PR12MB5994:EE_ X-MS-Office365-Filtering-Correlation-Id: d0539f4d-e167-46b3-325f-08def97e2ef9 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|23010399003|376014|36860700016|5023799004|56012099006|10067099003|11063799006|4143699003|18002099003|22082099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(23010399003)(376014)(36860700016)(5023799004)(56012099006)(10067099003)(11063799006)(4143699003)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: yOOdfDR7BYJhSxZuZsUJJK0toZZVTaRq6thU+szkA4RGMuKBIa8F/ohdzbLiT7sGZ4L1m6Lpb+DoP8RO653sVCiEfp/17Ni0b2DZWIxXrMiZF62pX5wdIySB7dFuYUSL0lDs6Z427alVtml3HgVZmfklrLwiTEpasxmpCv8Pdy/BLqN2H/hLUv2a9Vmkq/mOLDfL06uTlmygjZG3EZiSjDNuU9E39jIIcdJ94FPKl61nYBF8oHMmnm9bqa6zytbKhDFCbrTtkVMVY6JcVQElGZhW46ti481hBsKU5KVmoHSVJnDbADtvSae0qr/XmNgjcb1kLi9C6ZPGmKT9CVgCQ2vC5rx3oiPJn1LAtgKvM46nl87JYYivLmlIDqlBWjgXKwb8M95yGfaQ0bEhzng18NE3e1sTT/cRpoZgviN7gCW1PoAccfriyx5Y2trjM6Lm X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Aug 2026 21:02:28.2028 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d0539f4d-e167-46b3-325f-08def97e2ef9 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF00017099.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5994 On 8/13/26 13:14, Taimuraz Kaitmazov wrote: > On 8/13/26 23:06, Alex Deucher wrote: >> I wonder if there is some device config option to enable snooped vs. >> non-snooped DMAs? > I tried the PCIe one. Clearing Enable No Snoop in DevCtl, with lspci then showing NoSnoop-, changes nothing: same 20 out of 20 stale both ways. So the array either isn't carrying the attribute or isn't looking at it. Yes. It is known that the legacy hardware has problem to support snoop. In your case, the XRT's buffer::sync() could be used. Lizhi > > Taimuraz > >