Direct memory access (DMA) is a feature of modern computers and microprocessors that allows certain hardware subsystems within the computer to access system memory for reading and/or writing independently of the central processing unit.
I read that if DMA is available, then processor can route long read or write requests of disk blocks to …
hardware processor dmaIs the DMA address returned from this call the same as the physical address? LDD3 says the DMA address should …
linux-kernel linux-device-driver dmaMy question is this: how can I determine when it is safe to disable cache snooping when I am correctly …
linux linux-kernel kernel dmaI want to allocate a large DMA buffer, about 40 MB in size. When I use dma_alloc_coherent(), it fails …
linux-kernel dmaI have STM32F4407VGT6 controller on board STM32F4 Discovery. I try to read data from the AD7683 ADC …
spi dma stm32f4discovery adcGiven the starting memory address & word count DMA controller transfers data while the CPU works on some other process. …
io hardware dmaI am working on a DMA routine to transfer data from PC to a FPGA on a PCIe card. I …
linux-kernel linux-device-driver fpga dma pci-eWhat is DMA mapping and DMA engine in context of linux kernel? When DMA mapping API and DMA engine API …
linux linux-kernel linux-device-driver dma pci-e