Iio_dma_buffer_submit_block
WebImplement the two functions iio_dma_buffer_alloc_dmabuf() and iio_dma_buffer_enqueue_dmabuf(), as well as all the necessary bits to enable userspace access to the DMABUF objects. These two functions are exported as GPL symbols so that IIO buffer implementations can support the new DMABUF based userspace API. Web3 apr. 2024 · Commit Message Paul Cercueil April 3, 2024, 3:47 p.m. UTC Implement iio_dma_buffer_attach_dmabuf (), iio_dma_buffer_detach_dmabuf () and iio_dma_buffer_transfer_dmabuf (), which can then be used by the IIO DMA buffer implementations.
Iio_dma_buffer_submit_block
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Web*drivers/remoteproc/xlnx_r5_remoteproc.c:209:20: sparse: sparse: cast removes address space '__iomem' of expression @ 2024-03-29 15:30 kernel test robot 0 siblings, 0 ... WebTo request a channel dma_request_chan () API is used. Interface: struct dma_chan *dma_request_chan(struct device *dev, const char *name); Which will find and return the …
Webstatic int hw_submit_block(struct iio_dma_buffer_queue *queue, struct iio_dma_buffer_block *block) {block->block.bytes_used = block->block.size; return … WebUpdate the iio_dmaengine_buffer_submit() function to handle input buffers as well as output buffers. Signed-off-by: Paul Cercueil Reviewed-by: Alexandru Ardelean ---
Web3 apr. 2024 · Reset it here to the + * block's so that iio_dma_buffer_io () will work. + */ + block->bytes_used = block->size; + + /* + * If it's an input buffer, mark the block as queued, and + * iio_dma_buffer_enable () will submit it. WebVFIO Mediated devices. VFIO - “Virtual Function I/O”. Acceptance criteria for vfio-pci device specific driver variants. Virtio. Xilinx FPGA. Xillybus driver for generic FPGA interface. Writing Device Drivers for Zorro Devices. The Linux Hardware Timestamping Engine (HTE) Kernel subsystem documentation.
Webstruct iio_dma_buffer_block *block = data; unsigned long flags; spin_lock_irqsave (&block-> queue-> list_lock, flags); list_del (&block-> head); spin_unlock_irqrestore (&block-> …
Web13 mei 2024 · DMA buffer access inside an IIO driver Hawkes on May 13, 2024 Hi, I am using an AD9467 ADC with some DSP inside the PL part of a Zynq 7020. I have two … federal firearms licensed dealer locatorWebThe buffer-dma code was using two queues, incoming and outgoing, to manage the state of the blocks in use. While this totally works, it adds some complexity to the code, especially since the code only manages 2 blocks. easier to just check each block's state manually, and keep a counter for the next block to dequeue. decorating party suppliesWeb3 apr. 2024 · Use the functions provided by the buffer-dma core to implement the DMABUF userspace API in the buffer-dmaengine IIO buffer implementation. Since we want to be … decorating party tablesWebIntel Integrated Sensor Hub (ISH) A sensor hub enables the ability to offload sensor polling and algorithm processing to a dedicated low power co-processor. This allows the core processor to go into low power modes more often, resulting in increased battery life. There are many vendors providing external sensor hubs conforming to HID Sensor ... decorating patio ideasWebSince we want to be able to transfer an arbitrary number of bytes and not necesarily the full DMABUF, the associated scatterlist is converted to an array of DMA addresses + lengths, which is then passed to dmaengine_prep_slave_dma_array(). federal firearms licensees of illinoisfederal firearms licensed dealersWebThe generic IIO DMA buffer infrastructure is: 25 * used to manage the buffer memory and implement the IIO buffer operations: 26 ... static int iio_dmaengine_buffer_submit_block(struct iio_dma_buffer_queue *queue, 62: struct iio_dma_buffer_block *block) 63 {64: struct dmaengine_buffer *dmaengine_buffer = 65: decorating picture frames pinterest