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Fri, 9 Apr 2021 10:57:40 -0700 Envelope-to: git@xilinx.com, robh+dt@kernel.org, vkoul@kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Received: from [172.23.64.106] (port=33307 helo=xhdvnc125.xilinx.com) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1lUvNz-00030x-Ne; Fri, 09 Apr 2021 10:57:39 -0700 Received: by xhdvnc125.xilinx.com (Postfix, from userid 13245) id 4BB8112216C; Fri, 9 Apr 2021 23:26:20 +0530 (IST) From: Radhey Shyam Pandey To: , , CC: , , , , , Radhey Shyam Pandey Subject: [RFC v2 PATCH 6/7] dmaengine: xilinx_dma: Use tasklet_hi_schedule for timing critical usecase Date: Fri, 9 Apr 2021 23:26:04 +0530 Message-ID: <1617990965-35337-7-git-send-email-radhey.shyam.pandey@xilinx.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1617990965-35337-1-git-send-email-radhey.shyam.pandey@xilinx.com> References: <1617990965-35337-1-git-send-email-radhey.shyam.pandey@xilinx.com> MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: fe9219f8-d50b-4f80-b8b3-08d8fb80fe2d X-MS-TrafficTypeDiagnostic: CY4PR02MB2581: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:1751; 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X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Apr 2021 17:57:51.0900 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fe9219f8-d50b-4f80-b8b3-08d8fb80fe2d X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.62.198];Helo=[xsj-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: SN1NAM02FT051.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR02MB2581 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Schedule tasklet with high priority to ensure that callback processing is prioritized. It improves throughput for netdev dma clients. Signed-off-by: Radhey Shyam Pandey -- Changes for v2: - None --- drivers/dma/xilinx/xilinx_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c index f2305a73cb91..a2ea2d649332 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -1829,7 +1829,7 @@ static irqreturn_t xilinx_mcdma_irq_handler(int irq, void *data) spin_unlock(&chan->lock); } - tasklet_schedule(&chan->tasklet); + tasklet_hi_schedule(&chan->tasklet); return IRQ_HANDLED; } -- 2.7.4