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Documentation fix #1507

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merged 2 commits into from
May 23, 2024
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Documentation fix #1507

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2c0abe6
More clear documentation on resetting up your environment
eddierichter-amd May 23, 2024
c515807
Update Building.md
eddierichter-amd May 23, 2024
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7 changes: 7 additions & 0 deletions docs/Building.md
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Expand Up @@ -118,6 +118,11 @@ and llvm.
source utils/env_setup.sh <mlir-aie>/install <llvm dir>/install
```

Note that when coming back to this install with a fresh environment, it is necessary to rerun the `utils/env_setup.sh` script to setup your environment as well as activate the Python virtual environment using the following command.
```
source sandbox/bin/activate
```

## Building on X86 targetting the VCK5000

In order to build and run on PCIe cards, you first have to build and install the aie-rt library. We chose to install the library in /opt/xaiengine but it is not required for the tools to be installed there. Just ensure that when building mlir-aie and mlir-air, that you point to the directory in which the aie-rt library was installed.
Expand Down Expand Up @@ -147,6 +152,8 @@ Then, set `${ROCM_ROOT}` to the ROCm install from the previous path. Then, run t

The PCIe AIR runtime requires the use of the [AIR PCIe kernel driver](https://github.com/Xilinx/ROCm-air-platforms/tree/main/driver). The driver directory in the [ROCm-air-platforms](https://github.com/Xilinx/ROCm-air-platforms) repository contains documentation on how to compile and load the AIR PCIe kernel driver.

After this is complete, refer back to Step 5 of `Building on X86 for mlir-aie development` to setup the rest of your environment.

### Sysroot
Since the AIE tools are cross-compiling, in order to actually compile code, we need a 'sysroot' directory,
containing an ARM rootfs. This rootfs must match what will be available in the runtime environment.
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