From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from DU2PR03CU002.outbound.protection.outlook.com (mail-northeuropeazon11011046.outbound.protection.outlook.com [52.101.65.46]) (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 DA5BE4C8FED; Wed, 8 Jul 2026 18:35:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.65.46 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783535744; cv=fail; b=SXuYeYDq/I6cBo7vEvQU1/Fz0EOk789Aeksi/5TiarhvRZIzvzHQDa66h9+cs61T95tPwC9wiyx772tyJxXOxJtbvtAJtaBW3dPZZiTaVP51G3f2sr+onj87x2kzrsxQDeM/dmm9iCTq9tFz9iuy/otG/laXM6ok79haNADldAo= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783535744; c=relaxed/simple; bh=63u36oIWW499CxCVD3CUgF2pj86oGpHE6a4veN4CLu4=; h=From:Date:Subject:Content-Type:Message-Id:References:In-Reply-To: To:Cc:MIME-Version; b=BlXhJ+DfInGo+wi4pdaOB22/0Vv3nnAirraNY+wV/LeAnZsYR9uVDWNMlmjiwCujneehNqnPxY+CpbNGSdfqIWlc7maoxURcx3JucsWuSpre8ceyUzg4lEo0ENvfpAJUHAj5T+8AsiGZxUcCHxVKP6wOxyIFp6FqqbnlYZeuO7U= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com; spf=pass smtp.mailfrom=oss.nxp.com; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b=SHMXa9Nh; arc=fail smtp.client-ip=52.101.65.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="SHMXa9Nh" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=uAMO0DpXSEGi8+dgyoAlymNIIOlSyeFFMksS9JlB5+rZVu4Q3t5l2FknpHocudfgmjxO5Pg8lwPu1ltrxNlgkYj0xh18E51HhwbMcJgRIUo0HW/ip69yTfsbRCI73w4VXtcG5gARDt+50GdqrpNGEEbTv+lgfBMfA9uEK9J+3dCtsas3IlDVdkDizug0eoFLJQob3P6wcAIkbK9u3ETM5RHVphgPPT1eql83Fm7ke8NT1vIAQ1GuSNlnrRj4QLTu8pHyIAa9H+rx9vIK87eCEbylVsA4U7ObCAcxsyi0xdVeW29ghNp1kv/m9dF3LwfcUE2F12f5Q7OLURB9mwgUhg== 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=oxheSaLiwGk/Z55GRV8TcDjvGiFBVTuuLT0jCpc35Iw=; b=lbwXN4iouvKdvECHS8uoi1e9oUTAqg9lW8GTZPYbb7jYIBjCCDYv++8z7kP6auF+ekN3bkISUBz+V2eHCejl3t8o+Fc/yHmHd1lyKbi20YkPxc7cDWqR3V4PopJW0r8Ir3r6FcIAhXsyaY5kqDnsjGaU0RNwyMxB25cU0TVEInVuuq9uCxmqSPF8PLKYC9NmMXc0SmLUmzC4okvZmjqfWFS3bBl+TYhZ9LpNg33a3ZlJ16wEtWXkGTwWzv71ftW/L7MmHzKeKzLjWeEQWp+RsgF66a93LGP4ZVvfec241tkNEiPnhOxFpGNUzSOTbHBzL7/pTeImID8bNtzHfm2lKg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com; dkim=pass header.d=oss.nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com; s=selector1-NXP1-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=oxheSaLiwGk/Z55GRV8TcDjvGiFBVTuuLT0jCpc35Iw=; b=SHMXa9Nh+Q3Tk/KjOReFCLUrRi0wmeBuLrQPWbmlHvjgMNlNL/JueL8QJEJPbFbfMxA4DF5e1inrPHiU7iu16Tjloaoqxin/waEMzv2uV+BqRTWPDknrm7Zhrcro7Azcmz5Q1k2k1yX0/cR1esbH6jsID3Lb2LKgQ3KcPylaYds3FEj1kaHsByfvqUrgBEHbylLS918CFLZge8br7k5YxzjDACSey982orsY9DOoZ9sN/YACXGdA704hPGaCSBhziFR/wHsxK0WyCVQVO1AswHSyVI7eX3LhtTj5PU66ciT1pT9hitBvvNomt4o7/hxkA2tYFTw8YkyKBeFxVh3sEQ== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from GV2PR04MB11799.eurprd04.prod.outlook.com (2603:10a6:150:2cf::9) by VI1PR04MB9810.eurprd04.prod.outlook.com (2603:10a6:800:1df::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.181.10; Wed, 8 Jul 2026 18:35:39 +0000 Received: from GV2PR04MB11799.eurprd04.prod.outlook.com ([fe80::2146:83a2:5329:b7c]) by GV2PR04MB11799.eurprd04.prod.outlook.com ([fe80::2146:83a2:5329:b7c%6]) with mapi id 15.21.0159.007; Wed, 8 Jul 2026 18:35:39 +0000 From: Frank.Li@oss.nxp.com Date: Wed, 08 Jul 2026 14:35:06 -0400 Subject: [PATCH v4 06/10] dmaengine: dw-edma: Add callbacks to fill link list entries Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260708-edma_ll-v4-6-cc128f0afb61@nxp.com> References: <20260708-edma_ll-v4-0-cc128f0afb61@nxp.com> In-Reply-To: <20260708-edma_ll-v4-0-cc128f0afb61@nxp.com> To: Manivannan Sadhasivam , Vinod Koul , Gustavo Pimentel , Kees Cook , "Gustavo A. R. Silva" , Manivannan Sadhasivam , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Kishon Vijay Abraham I , Bjorn Helgaas , Christoph Hellwig , Niklas Cassel Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, linux-pci@vger.kernel.org, linux-nvme@lists.infradead.org, Koichiro Den , imx@lists.linux.dev, "Verma, Devendra" , Frank Li X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1783535707; l=6410; i=Frank.Li@nxp.com; s=20240130; h=from:subject:message-id; bh=nGpsMS8wEDHjpy4/wW160YouUvzq4Rld0wqWY/q9z50=; b=j5zj071oh6jkgQs+koi79ixR+77uJWl9yQsKWvSfnAUddNsGdadDGl24ITy9F7Pgf4As/PvZS bSBfFhQwUI2DnazeC97joR3bH79xzZbOCWr0EDNlTSzocRzAPfyMIY3 X-Developer-Key: i=Frank.Li@nxp.com; a=ed25519; pk=I0L1sDUfPxpAkRvPKy7MdauTuSENRq+DnA+G4qcS94Q= X-ClientProxiedBy: SA0PR11CA0136.namprd11.prod.outlook.com (2603:10b6:806:131::21) To GV2PR04MB11799.eurprd04.prod.outlook.com (2603:10a6:150:2cf::9) Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: GV2PR04MB11799:EE_|VI1PR04MB9810:EE_ X-MS-Office365-Filtering-Correlation-Id: db46316f-f69c-48ac-bd16-08dedd1fb5bd X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|366016|19092799006|376014|1800799024|23010399003|56012099006|22082099003|11063799006|18002099003|921020; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:GV2PR04MB11799.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(7416014)(366016)(19092799006)(376014)(1800799024)(23010399003)(56012099006)(22082099003)(11063799006)(18002099003)(921020);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?QVBIb0s3UkJMSXhXY1BWYzFkOS9kRnRiUURVWTkwWWxLYmFvbEpYN0V4WnNG?= =?utf-8?B?YmQ0Y05TZ002S2Q3WWl6bER6L0V0dGdHUGI5dWdKa0wvcW5Qd2RyZjhtSGM5?= =?utf-8?B?NVg3ZkRyM3poOTdxc2F4TGVvOThLS3E5Zkd5a1ZlelkvY1BkTG5lbmpuM3NG?= =?utf-8?B?Z2ViTi80T0FVOHZ6bHE4OWlzcFkzQnNiRENWS0FGNDJETU1XajNWNnh4dVZI?= =?utf-8?B?SmNQQWZEdlpZVWU3b21QcWF4clk3cmF3TmQ0cVdWNVgwUE9UaWxXQkVMWjNR?= =?utf-8?B?L2dmK1ViQzZMVzNQOUhXaWJaWXdsSmIwWVVqYlRIMzZPekFnaHc5U2Y5YXBw?= =?utf-8?B?Skx4aHhGdVJjTTczSlovcmN4RXJPSWxqT21GbXlpYTRQak16ZUlCWThpZkhV?= =?utf-8?B?WjZSTGxRa0pIb0NTbmZsL0NoSCtna3hyaDI0KzBEak1Va3hic3BXYXlGbm9K?= =?utf-8?B?aDZrMGJvNXFXUnFhdTB4T3RtSC8vbkRZRE1uT1F1SVJTK3B6d2xURnc2QSsv?= =?utf-8?B?b2hhWk5HSEY1Nm5UMlZHTmpLdEc2NTBOZmVXZmVHTm5Weml1ZFFVMUpId2pM?= =?utf-8?B?S2FHc2hibS85T1RvRWdSeWdJeW9kWVpBTytlRmgyMTBvR3Y0NUJYUWpFcjFI?= =?utf-8?B?ZzhqM2k1OXJHdmIybXNKNDR6M0VzZzg3R05PRlBVSyszanpkRzBRYVJWaklY?= =?utf-8?B?UHNqTEhncTR2L1pBRVorRldCYTd6V2s5eEhvRU9zSUx0SXR4M3FjY0FZM1Fv?= =?utf-8?B?YU5BWWpRc1JtUzlocnR2UUNMbnNZTVdNeCtZY0NQN0liTHlhYmo2ZHlZT3BV?= =?utf-8?B?Qmc4dUZxd0FWTXZsei9DMUZubnBoRk5hTnc3OHhpYVJNcjd1d3BkaERROE95?= =?utf-8?B?RENkUTFNMGwwK3hqMWdrN3RyWUhZNDV1VkcrbHAxVFZSTEgwK0VlVkR1d1o1?= =?utf-8?B?dGlZZy93d3ovNjdQVmJ4d3lWVm9TRG5YaitCQTlNd1A5V0QrOFhrSUJwY01O?= =?utf-8?B?cjg5NHZzUWJiMHhWdEVxUmExaWRQRUd2VTIxN011OEJnbHVqSmVOQ2dvSVc3?= =?utf-8?B?UVBnVk5BYmhGMFRIaVcwR0Z1OGljdGY3T3FueEJaM1Jjd1B6Rlh5TndzN1FC?= =?utf-8?B?Zjk1c0NNcncxWU9meWpQWTRiTWVXckdhSzM1Sm02YmVNdWFaU0RPRG9zZ2tP?= =?utf-8?B?TkFqbHM3K3Z1VjA2LzZ2VjQxQnRUSDVOTU1vU0JlV0UwQURFNG1BZEtPRnhI?= =?utf-8?B?cDRuRFdKMk9GQ3VSck84Z2RUR0hzMjJTY2pPdmphN0M5TXFvNzN3ZXVyZjhk?= =?utf-8?B?L215N3ZMclFQOEdkcXVpcDVZbllwZ21ZQ1ZKZms3NkJPQzNpNHJMdkRubWxG?= =?utf-8?B?T1AxSGhTVDFvYlF6Yk0vbXZRallLUGlJaUUwaUZGb1ZnYjVjdTBVN0RzMWo0?= =?utf-8?B?YVFEUGlSbGllazZ5bUFrMU1uaU9lRi8vQi9sVTh4OFB4MlpveVZucDJzOUNS?= =?utf-8?B?b01Na2Q2bVFYZ0EyT0c3RlpuMURLMUJ4QWx6NkwyUzNxYXljSkwveUtaYXB5?= =?utf-8?B?TUxhWS9iSEJJMGhWSm45eG1ZZWF2YWx3bjFiSThRb1l5aVZqRXJDY1lLOHRm?= =?utf-8?B?NFlHVUYwUXNodDY4VFRwcElOeWpFelZLT2E3S1FveEZqOCtSeDlvYk1ZOCs0?= =?utf-8?B?MHhSUG1QVHNyc05EOWY5bGlrb2VUeVhGbGd3MklVZ1hLc3Z0bUxQMTNpZGFZ?= =?utf-8?B?RWI1dHFFV2Zlay9xdHJlY05pWWtEZTFDMUw2Y3RYenhjM1BJamJqVUk4WFZB?= =?utf-8?B?VmIzaDdXTHp4Rlh0OHNXRnhJR3M2VEduYVZyTFhWalpieDhsQXZuSVY2M2VM?= =?utf-8?B?dlZ3VWNiL0lGbXo4bFo1VEEvd2ZzblBkditRRnlEczUreVc5bCtSY3EvQXRL?= =?utf-8?B?N3pUciswV1lJdUpudWQ3Wm42dklwdDkvU1FFSVlKRFQvTlFvbVJLbXV1WjhD?= =?utf-8?B?OUswR1RxR1NsL3ZrclU1OUhaeVJQMExIZWUzVWVlQVF4UzlSd0N0Q0FuU0E3?= =?utf-8?B?cEY0L21scndVMkkwVTc2QWZ6YVFGRzdING5HTGliTGYzRHRxbTA5RW1vK2R2?= =?utf-8?B?M2p0Z0FVRVpTSWlPb2FJRVM3NnNNaVJ2YjFZTk5uV0NhbTNIZ0VFRytQcTdz?= =?utf-8?B?aldvc1ROOUV6S0cyV3VQaFdWbzhHVWpVQzhhM2xUMnRZOUxodEx3OEdNSHVp?= =?utf-8?B?ZFZBRk4zakwvTmZvKzloNnh4aTErYko5UGZtZEJrVGdBRW9SSTc5MEFHZUQ4?= =?utf-8?B?dkF3emRBSGU4UjIzMUZ0d085ampxZVAzcG5UamgvbFFwNjZUTnlwR0dvZmxY?= =?utf-8?Q?6mCZVza2ELQv5zGl2/ePLLg8c4CUXzxR2JkG4?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: db46316f-f69c-48ac-bd16-08dedd1fb5bd X-MS-Exchange-CrossTenant-AuthSource: GV2PR04MB11799.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Jul 2026 18:35:39.8235 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: eklt6a4cxh6/X0g1LsErN2Km2QO+sj8MWrP/C9nZgQDtyVgs0c6ucEQYsUU0/zGi442wsMviHu4YG5sy5KeRps9M2vtYtjlbcLaVvfKJTM+4meb+QPf5F4kDE3+Aj4bS X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB9810 From: Frank Li Introduce four new callbacks to fill link list entries in preparation for replacing dw_(edma|hdma)_v0_core_start(). Filling link list entries is expected to become more complex, and without this abstraction both eDMA and HDMA paths would need to duplicate the same logic. Add fill-entry callbacks so the code can be shared cleanly between eDMA and HDMA implementations. Tested-by: Koichiro Den Signed-off-by: Frank Li --- Change in v4 - use argument in dw_(hdma|edma)_v0_core_ll_link(addr) to set link to addr report by sashiko - Add Koichiro tested by tags change in v2 - update commit message - use eDMA and HDMI - keep inline to avoid build warnings. dw-edma-v0-core.c also include dw-edma-core.h --- drivers/dma/dw-edma/dw-edma-core.h | 29 ++++++++++++++++++++++ drivers/dma/dw-edma/dw-edma-v0-core.c | 46 +++++++++++++++++++++++++++++++++++ drivers/dma/dw-edma/dw-hdma-v0-core.c | 38 +++++++++++++++++++++++++++++ 3 files changed, 113 insertions(+) diff --git a/drivers/dma/dw-edma/dw-edma-core.h b/drivers/dma/dw-edma/dw-edma-core.h index b96089baf0f9c..bab4d49c92feb 100644 --- a/drivers/dma/dw-edma/dw-edma-core.h +++ b/drivers/dma/dw-edma/dw-edma-core.h @@ -126,6 +126,12 @@ struct dw_edma_core_ops { irqreturn_t (*handle_int)(struct dw_edma_irq *dw_irq, enum dw_edma_dir dir, dw_edma_handler_t done, dw_edma_handler_t abort); void (*start)(struct dw_edma_chunk *chunk, bool first); + void (*ll_data)(struct dw_edma_chan *chan, struct dw_edma_burst *burst, + u32 idx, bool cb, bool irq); + void (*ll_link)(struct dw_edma_chan *chan, u32 idx, bool cb, u64 addr); + void (*ch_doorbell)(struct dw_edma_chan *chan); + void (*ch_enable)(struct dw_edma_chan *chan); + void (*ch_config)(struct dw_edma_chan *chan); void (*debugfs_on)(struct dw_edma *dw); void (*ack_emulated_irq)(struct dw_edma *dw); @@ -204,6 +210,29 @@ void dw_edma_core_ch_config(struct dw_edma_chan *chan) chan->dw->core->ch_config(chan); } +static inline void +dw_edma_core_ll_data(struct dw_edma_chan *chan, struct dw_edma_burst *burst, + u32 idx, bool cb, bool irq) +{ + chan->dw->core->ll_data(chan, burst, idx, cb, irq); +} + +static inline void +dw_edma_core_ll_link(struct dw_edma_chan *chan, u32 idx, bool cb, u64 addr) +{ + chan->dw->core->ll_link(chan, idx, cb, addr); +} + +static inline void dw_edma_core_ch_doorbell(struct dw_edma_chan *chan) +{ + chan->dw->core->ch_doorbell(chan); +} + +static inline void dw_edma_core_ch_enable(struct dw_edma_chan *chan) +{ + chan->dw->core->ch_enable(chan); +} + static inline void dw_edma_core_debugfs_on(struct dw_edma *dw) { diff --git a/drivers/dma/dw-edma/dw-edma-v0-core.c b/drivers/dma/dw-edma/dw-edma-v0-core.c index 8d38867cd9983..c0746e5351410 100644 --- a/drivers/dma/dw-edma/dw-edma-v0-core.c +++ b/drivers/dma/dw-edma/dw-edma-v0-core.c @@ -509,6 +509,48 @@ static void dw_edma_v0_core_ch_config(struct dw_edma_chan *chan) } } +static void +dw_edma_v0_core_ll_data(struct dw_edma_chan *chan, struct dw_edma_burst *burst, + u32 idx, bool cb, bool irq) +{ + u32 control = 0; + + if (cb) + control |= DW_EDMA_V0_CB; + + if (irq) { + control |= DW_EDMA_V0_LIE; + + if (!(chan->dw->chip->flags & DW_EDMA_CHIP_LOCAL)) + control |= DW_EDMA_V0_RIE; + } + + dw_edma_v0_write_ll_data(chan, idx, control, burst->sz, burst->sar, + burst->dar); +} + +static void +dw_edma_v0_core_ll_link(struct dw_edma_chan *chan, u32 idx, bool cb, u64 addr) +{ + u32 control = DW_EDMA_V0_LLP | DW_EDMA_V0_TCB; + + if (!cb) + control |= DW_EDMA_V0_CB; + + dw_edma_v0_write_ll_link(chan, idx, control, addr); +} + +static void dw_edma_v0_core_ch_doorbell(struct dw_edma_chan *chan) +{ + struct dw_edma *dw = chan->dw; + + dw_edma_v0_sync_ll_data(chan); + + /* Doorbell */ + SET_RW_32(dw, chan->dir, doorbell, + FIELD_PREP(EDMA_V0_DOORBELL_CH_MASK, chan->id)); +} + /* eDMA debugfs callbacks */ static void dw_edma_v0_core_debugfs_on(struct dw_edma *dw) { @@ -540,6 +582,10 @@ static const struct dw_edma_core_ops dw_edma_v0_core = { .ch_status = dw_edma_v0_core_ch_status, .handle_int = dw_edma_v0_core_handle_int, .start = dw_edma_v0_core_start, + .ll_data = dw_edma_v0_core_ll_data, + .ll_link = dw_edma_v0_core_ll_link, + .ch_doorbell = dw_edma_v0_core_ch_doorbell, + .ch_enable = dw_edma_v0_core_ch_enable, .ch_config = dw_edma_v0_core_ch_config, .debugfs_on = dw_edma_v0_core_debugfs_on, .ack_emulated_irq = dw_edma_v0_core_ack_emulated_irq, diff --git a/drivers/dma/dw-edma/dw-hdma-v0-core.c b/drivers/dma/dw-edma/dw-hdma-v0-core.c index 31bbdc6a40642..16fe3ef43948d 100644 --- a/drivers/dma/dw-edma/dw-hdma-v0-core.c +++ b/drivers/dma/dw-edma/dw-hdma-v0-core.c @@ -348,6 +348,40 @@ static void dw_hdma_v0_core_ch_config(struct dw_edma_chan *chan) SET_CH_32(dw, chan->dir, chan->id, msi_msgdata, chan->msi.data); } +static void +dw_hdma_v0_core_ll_data(struct dw_edma_chan *chan, struct dw_edma_burst *burst, + u32 idx, bool cb, bool irq) +{ + u32 control = 0; + + if (cb) + control |= DW_HDMA_V0_CB; + + dw_hdma_v0_write_ll_data(chan, idx, control, burst->sz, burst->sar, + burst->dar); +} + +static void +dw_hdma_v0_core_ll_link(struct dw_edma_chan *chan, u32 idx, bool cb, u64 addr) +{ + u32 control = DW_HDMA_V0_LLP | DW_HDMA_V0_TCB; + + if (!cb) + control |= DW_HDMA_V0_CB; + + dw_hdma_v0_write_ll_link(chan, idx, control, addr); +} + +static void dw_hdma_v0_core_ch_doorbell(struct dw_edma_chan *chan) +{ + struct dw_edma *dw = chan->dw; + + dw_hdma_v0_sync_ll_data(chan); + + /* Doorbell */ + SET_CH_32(dw, chan->dir, chan->id, doorbell, HDMA_V0_DOORBELL_START); +} + /* HDMA debugfs callbacks */ static void dw_hdma_v0_core_debugfs_on(struct dw_edma *dw) { @@ -366,6 +400,10 @@ static const struct dw_edma_core_ops dw_hdma_v0_core = { .ch_status = dw_hdma_v0_core_ch_status, .handle_int = dw_hdma_v0_core_handle_int, .start = dw_hdma_v0_core_start, + .ll_data = dw_hdma_v0_core_ll_data, + .ll_link = dw_hdma_v0_core_ll_link, + .ch_doorbell = dw_hdma_v0_core_ch_doorbell, + .ch_enable = dw_hdma_v0_core_ch_enable, .ch_config = dw_hdma_v0_core_ch_config, .debugfs_on = dw_hdma_v0_core_debugfs_on, .db_offset = dw_hdma_v0_core_db_offset, -- 2.43.0