March 9, 2016
9:16 a.m.
Hello, I have some sample code which uses 2 test application: 1. test application in kernel , which allocates buffer using kmalloc (GFP_KERNEL) 2. test application in userspace which allocates buffer using malloc In both cases the buffers are DMA through PCI. I don't understand how is it that the buffers are allocated with malloc/kmalloc for DMA. Is there any idea ? Regards, Ran