Hello, I have some limitations when using a DMA on a ZCU111. I can’t allocate all the memory I need in my buffers when I use “allocate” function. After some research, I find this : " This buffer is allocated inside the kernel space using xlnk driver. The maximum allocatable memory is defined at ke…

Pynq & maximum allocatable memory (CMA)

dimiter August 4, 2020, 9:44am 5

Yep, that’s it.

Topic		Replies	Views
Unable to allocate more than 4KB of Contiguous Memory. ZCU111 Support	1	1165	November 8, 2021
Failed to allocate Memory when i use the fuction 'cma_alloc' Support	1	1294	June 14, 2019
How to increase the CMA Support	3	832	March 8, 2023
PYNQ Allocate() Max. Size? Support	6	226	August 12, 2024
ERROR downloading bitstream PYNQ OS for ZCU102 Support	8	1790	March 3, 2022