linux-kernel - [PATCH] dmaengine: xilinx

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250314134717.703287-1-thomas.gessler@brueckmann-gmbh.de>
Date: Fri, 14 Mar 2025 14:47:15 +0100
From: Thomas Gessler <thomas.gessler@...eckmann-gmbh.de>
To: dmaengine@...r.kernel.org
Cc: Thomas Gessler <thomas.gessler@...eckmann-gmbh.de>,
	Vinod Koul <vkoul@...nel.org>,
	Michal Simek <michal.simek@....com>,
	Marek Vasut <marex@...x.de>,
	Radhey Shyam Pandey <radhey.shyam.pandey@....com>,
	Uwe Kleine-König <u.kleine-koenig@...libre.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] dmaengine: xilinx_dma: Set max segment size

Set the maximumg DMA segment size from the actual core configuration
value. Without this setting, the default value of 64 KiB is reported,
and larger sizes cannot be used for IIO DMAEngine buffers.

Signed-off-by: Thomas Gessler <thomas.gessler@...eckmann-gmbh.de>
---
 drivers/dma/xilinx/xilinx_dma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 108a7287f4cd..4b4a299e3807 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -3114,6 +3114,8 @@ static int xilinx_dma_probe(struct platform_device *pdev)
 		}
 	}
 
+	dma_set_max_seg_size(xdev->dev, xdev->max_buffer_len);
+
 	if (xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) {
 		xdev->has_axistream_connected =
 			of_property_read_bool(node, "xlnx,axistream-connected");
-- 
2.43.0