The NVIDIA /proc file system
interface can be used to obtain run-time information about the
NVIDIA kernel driver and about the NVIDIA GPUs present in the
system. It can also be used to control some aspects of the NVIDIA
driver's operation.
This information is contained in several files in /proc/driver/nvidia:
/proc/driver/nvidia/versionLists the installed driver revision and the version of the GNU C compiler used to build the Linux kernel module.
/proc/driver/nvidia/warningsThe NVIDIA graphics driver tries to detect potential problems
with the host system's kernel and warns about them using the
kernel's printk() mechanism,
typically logged by the system to /var/log/messages.
Important NVIDIA warning messages are also logged to dedicated
text files in this /proc
directory.
/proc/driver/nvidia/gpus/domain:bus:device.function/informationProvide information about each of the installed NVIDIA GPUs (model name, IRQ, BIOS version, etc.). Note that some of the information is only available when the GPUs have been initialized.
/proc/driver/nvidia/gpus/domain:bus:device.function/powerProvide information about the runtime D3 (RTD3) Power Management
status of each of the installed NVIDIA GPUs. Note that some of the
information is only available when the GPUs have been initialized.
Please see
Chapter 22, PCI-Express Runtime D3 (RTD3) Power
Management for the detailed description of this
/proc interface.
/proc/driver/nvidia/suspendNotify the NVIDIA kernel drivers of system power management
events, such as suspend and hibernate. Please see Chapter 21,
Configuring Power Management Support for a detailed
description of this /proc
interface.