From: Adrian Larumbe <adrian.martinezlarumbe@imgtec.com>
To: <vkoul@kernel.org>, <dmaengine@vger.kernel.org>
Cc: <michal.simek@xilinx.com>, <linux-arm-kernel@lists.infradead.org>,
<adrian.martinezlarumbe@imgtec.com>
Subject: [PATCH 0/4] Expand Xilinx CDMA functions
Date: Fri, 23 Apr 2021 02:19:09 +0100 [thread overview]
Message-ID: <20210423011913.13122-1-adrian.martinezlarumbe@imgtec.com> (raw)
Recently at Imgtec we had to provide GLES API buffers with DMA transfer
capabilities to device memory. We had access to a Xilinx CDMA IP module,
but even though the hardware supports scatter-gather operations,
the driver did not. This patch series' goal is to extend the driver
to support SG transfers on CDMA devices.
It also fixes a couple of issues I found in the driver: lack of support
for HW descriptors allocated in an extended address space (above 32 bits)
and an unusual race condition when closing a DMA channel.
Adrian Larumbe (4):
dmaengine: xilinx_dma: Add extended address support in CDMA
dmaengine: xilinx_dma: Add channel configuration setting callback
dmaengine: xilinx_dma: Add CDMA SG transfer support
dmaengine: xilinx_dma: Add device synchronisation callback
drivers/dma/xilinx/xilinx_dma.c | 186 ++++++++++++++++++++++++++++++--
1 file changed, 177 insertions(+), 9 deletions(-)
--
2.17.1
next reply other threads:[~2021-04-23 1:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-23 1:19 Adrian Larumbe [this message]
2021-04-23 1:19 ` [PATCH 1/4] dmaengine: xilinx_dma: Add extended address support in CDMA Adrian Larumbe
2021-04-23 1:19 ` [PATCH 2/4] dmaengine: xilinx_dma: Add channel configuration setting callback Adrian Larumbe
2021-04-23 1:19 ` [PATCH 3/4] dmaengine: xilinx_dma: Add CDMA SG transfer support Adrian Larumbe
2021-04-23 1:19 ` [PATCH 4/4] dmaengine: xilinx_dma: Add device synchronisation callback Adrian Larumbe
2021-04-23 6:33 ` Lars-Peter Clausen
2021-04-23 11:49 ` [EXTERNAL] " Adrian Larumbe
2021-04-23 9:17 ` [PATCH 0/4] Expand Xilinx CDMA functions Lars-Peter Clausen
2021-04-23 11:38 ` [EXTERNAL] " Adrian Larumbe
2021-04-23 13:24 ` Vinod Koul
2021-04-23 13:51 ` Lars-Peter Clausen
2021-04-23 14:36 ` [EXTERNAL] " Adrian Larumbe
2021-04-23 17:20 ` Vinod Koul
2021-06-01 10:29 ` radhey pandey
2021-07-02 14:23 ` [EXTERNAL] " Adrian Larumbe
2021-07-05 3:53 ` Vinod Koul
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