tree 9a8bfbd02e0c56187a98959fe15ac00ed96f0f49
parent 8b91ac6f8d82cc02660adad3513f03c41413435c
author Matthew Poremba <matthew.poremba@amd.com> 1682122948 -0500
committer Matthew Poremba <matthew.poremba@amd.com> 1682642915 +0000

dev-amdgpu: Enable more GPUs with device specific registers

Currently gem5 assumes the amdgpu device to be Vega10. In order to
support more devices we need to handle situations where different
registers and addresses have the same functionality but different
offsets on different devices.

This changeset adds an NBIO class to handle device discovery and driver
initialization related tasks, pulling them out of the AMDGPUDevice
class. The offsets used for MMIOs are reworked slightly to use offsets
rather than absolute addresses. This is because we cannot determine the
absolute address in the constructor since the BAR has not been assigned
by the OS yet.

Change-Id: I14b364374e086e185978334425a4e265cf2760d0
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/70041
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>