Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
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=SATLEXMB03.amd.com; pr=C
From:   Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam@amd.com>
To:     <vkoul@kernel.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <lars@metafoo.de>,
        <adrianml@alumnos.upm.es>
CC:     <dmaengine@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <michal.simek@amd.com>,
        <radhey.shyam.pandey@amd.com>, <anirudha.sarangi@amd.com>,
        <harini.katakam@amd.com>, <sarath.babu.naidu.gaddam@amd.com>,
        <git@xilinx.com>, <git@amd.com>
Subject: [RFC V3 PATCH 6/8] dmaengine: xilinx_dma: Use tasklet_hi_schedule for timing critical usecase
Date:   Tue, 20 Sep 2022 11:21:17 +0530
Message-ID: <20220920055119.12634-7-sarath.babu.naidu.gaddam@amd.com>
In-Reply-To: <20220920055119.12634-1-sarath.babu.naidu.gaddam@amd.com>
References: <20220920055119.12634-1-sarath.babu.naidu.gaddam@amd.com>
MIME-Version: 1.0
Content-Type: text/plain
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Sep 2022 05:52:25.7220
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 01ccae9e-a837-40ff-1798-08da9acc4b9d
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=[SATLEXMB03.amd.com]
X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT084.eop-nam11.prod.protection.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB6389
X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,
        RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham
        autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>

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 <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam@amd.com>
---
Changes in V2 and V3:
- 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 1488cc6a299a..8126a56980f2 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -1848,7 +1848,7 @@ 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;
 }
 
-- 
2.25.1