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charset=UTF-8 Date: Tue, 10 Mar 2026 16:44:46 +0900 Message-Id: Subject: Re: [PATCH v6 0/9] gpu: nova-core: gsp: add continuation record support From: "Alexandre Courbot" To: "Eliot Courtney" Cc: "Danilo Krummrich" , "Alice Ryhl" , "David Airlie" , "Simona Vetter" , "Miguel Ojeda" , "Boqun Feng" , "Gary Guo" , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , "Benno Lossin" , "Andreas Hindborg" , "Trevor Gross" , "Zhi Wang" , "John Hubbard" , "Alistair Popple" , "Joel Fernandes" , "Timur Tabi" , , , , References: <20260306-cmdq-continuation-v6-0-cc7b629200ee@nvidia.com> In-Reply-To: <20260306-cmdq-continuation-v6-0-cc7b629200ee@nvidia.com> X-ClientProxiedBy: TYCP286CA0016.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:263::6) To CH2PR12MB3990.namprd12.prod.outlook.com (2603:10b6:610:28::18) Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PR12MB3990:EE_|CH8PR12MB9816:EE_ X-MS-Office365-Filtering-Correlation-Id: 4f23a615-2dc4-488e-dd0b-08de7e78e818 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|1800799024|10070799003|366016; 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It also adds types > `SplitState` and `SplitCommand` which support splitting a large RPC > into smaller ones while transparently letting regular sized RPCs be sent > without extra copies. > > The send pathway uses `SplitState` to send all commands, but if > the command fits into 16 pages, it still writes directly into the > command queue. If it is larger than 16 pages and needs continuation > records, it writes into a staging buffer, so there is one copy. > > Signed-off-by: Eliot Courtney Merged to drm-rust-next, thanks!