1*4882a593SmuzhiyunWhat: /sys/kernel/dmabuf/buffers 2*4882a593SmuzhiyunDate: January 2021 3*4882a593SmuzhiyunKernelVersion: v5.12 4*4882a593SmuzhiyunContact: Hridya Valsaraju <hridya@google.com> 5*4882a593SmuzhiyunDescription: The /sys/kernel/dmabuf/buffers directory contains a 6*4882a593Smuzhiyun snapshot of the internal state of every DMA-BUF. 7*4882a593Smuzhiyun /sys/kernel/dmabuf/buffers/<inode_number> will contain the 8*4882a593Smuzhiyun statistics for the DMA-BUF with the unique inode number 9*4882a593Smuzhiyun <inode_number> 10*4882a593SmuzhiyunUsers: kernel memory tuning/debugging tools 11*4882a593Smuzhiyun 12*4882a593SmuzhiyunWhat: /sys/kernel/dmabuf/buffers/<inode_number>/exporter_name 13*4882a593SmuzhiyunDate: January 2021 14*4882a593SmuzhiyunKernelVersion: v5.12 15*4882a593SmuzhiyunContact: Hridya Valsaraju <hridya@google.com> 16*4882a593SmuzhiyunDescription: This file is read-only and contains the name of the exporter of 17*4882a593Smuzhiyun the DMA-BUF. 18*4882a593Smuzhiyun 19*4882a593SmuzhiyunWhat: /sys/kernel/dmabuf/buffers/<inode_number>/size 20*4882a593SmuzhiyunDate: January 2021 21*4882a593SmuzhiyunKernelVersion: v5.12 22*4882a593SmuzhiyunContact: Hridya Valsaraju <hridya@google.com> 23*4882a593SmuzhiyunDescription: This file is read-only and specifies the size of the DMA-BUF in 24*4882a593Smuzhiyun bytes. 25