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Fri, 23 Apr 2021 02:19:25 +0100 From: Adrian Larumbe To: , CC: , , Subject: [PATCH 0/4] Expand Xilinx CDMA functions Date: Fri, 23 Apr 2021 02:19:09 +0100 Message-ID: <20210423011913.13122-1-adrian.martinezlarumbe@imgtec.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.100.70.86] X-ClientProxiedBy: HHMAIL05.hh.imgtec.org (10.100.10.120) To HHMAIL05.hh.imgtec.org (10.100.10.120) X-EXCLAIMER-MD-CONFIG: 15a78312-3e47-46eb-9010-2e54d84a9631 X-Proofpoint-GUID: K4xd7uJXluB4emH18StVvzK61Bk8ZGTc X-Proofpoint-ORIG-GUID: K4xd7uJXluB4emH18StVvzK61Bk8ZGTc X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210422_181936_148564_A6259816 X-CRM114-Status: GOOD ( 11.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel