0001 What: /sys/kernel/dmabuf/buffers
0002 Date: May 2021
0003 KernelVersion: v5.13
0004 Contact: Hridya Valsaraju <hridya@google.com>
0005 Description: The /sys/kernel/dmabuf/buffers directory contains a
0006 snapshot of the internal state of every DMA-BUF.
0007 /sys/kernel/dmabuf/buffers/<inode_number> will contain the
0008 statistics for the DMA-BUF with the unique inode number
0009 <inode_number>
0010 Users: kernel memory tuning/debugging tools
0011
0012 What: /sys/kernel/dmabuf/buffers/<inode_number>/exporter_name
0013 Date: May 2021
0014 KernelVersion: v5.13
0015 Contact: Hridya Valsaraju <hridya@google.com>
0016 Description: This file is read-only and contains the name of the exporter of
0017 the DMA-BUF.
0018
0019 What: /sys/kernel/dmabuf/buffers/<inode_number>/size
0020 Date: May 2021
0021 KernelVersion: v5.13
0022 Contact: Hridya Valsaraju <hridya@google.com>
0023 Description: This file is read-only and specifies the size of the DMA-BUF in
0024 bytes.
