From: Louis Chauvet <louis.chauvet@bootlin.com>
To: Lizhi Hou <lizhi.hou@amd.com>, Brian Xu <brian.xu@amd.com>,
Raj Kumar Rampelli <raj.kumar.rampelli@amd.com>,
Vinod Koul <vkoul@kernel.org>,
Michal Simek <michal.simek@amd.com>,
Jan Kuliga <jankul@alatek.krakow.pl>,
Miquel Raynal <miquel.raynal@bootlin.com>
Cc: dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Louis Chauvet <louis.chauvet@bootlin.com>
Subject: [PATCH 1/3] dmaengine: xilinx: xdma: Fix wrong offsets in the buffers addresses in dma descriptor
Date: Wed, 27 Mar 2024 10:58:48 +0100 [thread overview]
Message-ID: <20240327-digigram-xdma-fixes-v1-1-45f4a52c0283@bootlin.com> (raw)
In-Reply-To: <20240327-digigram-xdma-fixes-v1-0-45f4a52c0283@bootlin.com>
From: Miquel Raynal <miquel.raynal@bootlin.com>
The addition of interleaved transfers slightly changed the way
addresses inside DMA descriptors are derived, breaking cyclic
transfers.
Fixes: 3e184e64c2e5 ("dmaengine: xilinx: xdma: Prepare the introduction of interleaved DMA transfers")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
---
drivers/dma/xilinx/xdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/xilinx/xdma.c b/drivers/dma/xilinx/xdma.c
index 170017ff2aad..b9788aa8f6b7 100644
--- a/drivers/dma/xilinx/xdma.c
+++ b/drivers/dma/xilinx/xdma.c
@@ -704,7 +704,7 @@ xdma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t address,
desc_num = 0;
for (i = 0; i < periods; i++) {
desc_num += xdma_fill_descs(sw_desc, *src, *dst, period_size, desc_num);
- addr += i * period_size;
+ addr += period_size;
}
tx_desc = vchan_tx_prep(&xdma_chan->vchan, &sw_desc->vdesc, flags);
--
2.43.0
next prev parent reply other threads:[~2024-03-27 9:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-27 9:58 [PATCH 0/3] dmaengine: xilinx: xdma: Various fixes for xdma Louis Chauvet
2024-03-27 9:58 ` Louis Chauvet [this message]
2024-03-27 9:58 ` [PATCH 2/3] dmaengine: xilinx: xdma: Fix synchronization issue Louis Chauvet
2024-03-27 17:46 ` Lizhi Hou
2024-03-28 0:23 ` Miquel Raynal
2024-03-28 16:49 ` Lizhi Hou
2024-03-28 1:09 ` kernel test robot
2024-03-27 9:58 ` [PATCH 3/3] dmaengine: xilinx: xdma: Clarify kdoc in XDMA driver Louis Chauvet
2024-04-07 16:38 ` [PATCH 0/3] dmaengine: xilinx: xdma: Various fixes for xdma Vinod Koul
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