| What: /sys/kernel/dmabuf/buffers |
| Date: January 2021 |
| KernelVersion: v5.12 |
| Contact: Hridya Valsaraju <hridya@google.com> |
| Description: The /sys/kernel/dmabuf/buffers directory contains a |
| snapshot of the internal state of every DMA-BUF. |
| /sys/kernel/dmabuf/buffers/<inode_number> will contain the |
| statistics for the DMA-BUF with the unique inode number |
| <inode_number> |
| Users: kernel memory tuning/debugging tools |
| |
| What: /sys/kernel/dmabuf/buffers/<inode_number>/exporter_name |
| Date: January 2021 |
| KernelVersion: v5.12 |
| Contact: Hridya Valsaraju <hridya@google.com> |
| Description: This file is read-only and contains the name of the exporter of |
| the DMA-BUF. |
| |
| What: /sys/kernel/dmabuf/buffers/<inode_number>/size |
| Date: January 2021 |
| KernelVersion: v5.12 |
| Contact: Hridya Valsaraju <hridya@google.com> |
| Description: This file is read-only and specifies the size of the DMA-BUF in |
| bytes. |
