489074fbfd
The PM4 release_mem packet is used as a DMA fence in the driver. It specifies which queue the interrupt came from by encoding the me, pipe, and queue fields from the map_queue packet into the interrupt ring ID. Currently these fields are incorrect because (1) the order in the bitfield is backwards, (2) the queue constructor assigns a pointer to the PM4MapQueue packet containing this data to the dmaBuffer which gets deleted in short order, and (3) the order of the encoding of ring ID is incorrect. This change fixes these issues by (1) placing the struct vales in correct order, (2) creating a const copy of the dmaBuffer on construction, and (3) using the ring ID encoding expected by the driver: https://github.com/RadeonOpenCompute/ROCK-Kernel-Driver/blob/roc-4.3.x/ drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c#L5989 Change-Id: I72c382980e57573f8a8a6879912c4139c7e2f505 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/65095 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com> Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
This is the gem5 simulator. The main website can be found at http://www.gem5.org A good starting point is http://www.gem5.org/about, and for more information about building the simulator and getting started please see http://www.gem5.org/documentation and http://www.gem5.org/documentation/learning_gem5/introduction. To build gem5, you will need the following software: g++ or clang, Python (gem5 links in the Python interpreter), SCons, zlib, m4, and lastly protobuf if you want trace capture and playback support. Please see http://www.gem5.org/documentation/general_docs/building for more details concerning the minimum versions of these tools. Once you have all dependencies resolved, type 'scons build/<CONFIG>/gem5.opt' where CONFIG is one of the options in build_opts like ARM, NULL, MIPS, POWER, SPARC, X86, Garnet_standalone, etc. This will build an optimized version of the gem5 binary (gem5.opt) with the the specified configuration. See http://www.gem5.org/documentation/general_docs/building for more details and options. The main source tree includes these subdirectories: - build_opts: pre-made default configurations for gem5 - build_tools: tools used internally by gem5's build process. - configs: example simulation configuration scripts - ext: less-common external packages needed to build gem5 - include: include files for use in other programs - site_scons: modular components of the build system - src: source code of the gem5 simulator - system: source for some optional system software for simulated systems - tests: regression tests - util: useful utility programs and files To run full-system simulations, you may need compiled system firmware, kernel binaries and one or more disk images, depending on gem5's configuration and what type of workload you're trying to run. Many of those resources can be downloaded from http://resources.gem5.org, and/or from the git repository here: https://gem5.googlesource.com/public/gem5-resources/ If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.