siarheivolkau / mxu-tests Goto Github PK

This repo contains tests for Ingenic MXU version 1 release 2 - MIPS SIMD extension. It consists of 114 instructions aimed to speedup multimedia applications. These tests aimed to verify emulation implementation of the MXU ASE in the QEMU project.

In order to build these tests you have to use GCC toolchain modified to support MXU ASE as well. The patches for GCC 12.2.0 and binutils 2.38 are provided in this repo, see patches/ subfolder.

As of me, I use OpenDingux buildroot to build full toolchain as a part of build process. Full toolchain provides sysroot, which is used to run tests in QEMU. In order to build OpenDingux you have to clone it from there and copy patches to respective folders in buildroot/board/opendingux/patches/gcc and buildroot/board/opendingux/patches/binutils. IMPORTANT NOTE: remove existing patches in these folders as they inflict problems.

Then build RS90 variant by running CONFIG=rs90 ./rebuild.sh RS90 CPU - jz4725b supports MIPS32R1 + MXU1 release 2 a.k.a. XBurstR1 alias in QEMU. The toolchain can be found in buildroot/output/rs90/images/rs90-toolchain-<date>.tar.xz on successful build. Unpack it somewhere and launch ./relocate-sdk.sh script. Now the toolchain is ready to use.

Additionally you can build GCW0 toolchain variant by running CONFIG=gcw0 ./rebuild.sh GCW0 CPU - jz4770 supports MIPS32R2 + MXU1 release 2 a.k.a. XBurstR2 alias in QEMU.

In order to build testapp application you have to provide CROSS_COMPILE option to make utility, e.g. make CROSS_COMPILE=/path/to/rs90-toolchain/bin/mipsel-linux- as a result of build testapp binary will appear.

Only OpenDingux device is reviewed here as it was the base for running tests. However, it might be run on any Ingenic MXU capable hardware with respect to the toolchain compatibility. To launch testapp on hardware device, copy it by any way to the device, it can be done easily by using SSH e.g. scp -O testapp [email protected]:~ when the device configured it's USB interface in the network mode and password for user is set (empty password also ok). Then you can simply run copied binary ./testapp

For launching testapp in QEMU you have to use OpenDingux toolchain as it have suitable linux sysroot. The simple command is like: qemu-mipsel -cpu XBurstR1 -L /path/to/rs90-toolchain/mipsel-rs90-linux-musl/sysroot/ ./testapp

for GCW0 the command is like: qemu-mipsel -cpu XBurstR2 -L /path/to/gcw0-toolchain/mipsel-gcw0-linux-uclibc/sysroot/ ./testapp