CI: allow specifying custom driver versions in test matrix #2176
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| # SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved. | ||
| # | ||
| # SPDX-License-Identifier: Apache-2.0 | ||
| # | ||
| # configure_driver_mode.ps1 -- set the NVIDIA driver mode on a Windows CI | ||
| # runner and cycle the display devices so the new mode takes effect | ||
| # without rebooting. Always runs (whether or not install_gpu_driver.ps1 | ||
| # just ran). When install_gpu_driver.ps1 has run, this single device | ||
| # cycle also activates the freshly-installed driver. | ||
| # | ||
| # Inputs (env): | ||
| # DRIVER_MODE One of WDDM, TCC, MCDM. | ||
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| function Set-DriverMode { | ||
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| # Map matrix DRIVER_MODE to nvidia-smi -fdm code. | ||
| # This assumes we have the prior knowledge on which GPU can use which mode. | ||
| $driver_mode = $env:DRIVER_MODE | ||
| if ($driver_mode -eq "WDDM") { | ||
| Write-Output "Setting driver mode to WDDM..." | ||
| nvidia-smi -fdm 0 | ||
| } elseif ($driver_mode -eq "TCC") { | ||
| Write-Output "Setting driver mode to TCC..." | ||
| nvidia-smi -fdm 1 | ||
| } elseif ($driver_mode -eq "MCDM") { | ||
| Write-Output "Setting driver mode to MCDM..." | ||
| nvidia-smi -fdm 2 | ||
| } else { | ||
| Write-Output "Unknown driver mode: $driver_mode" | ||
| exit 1 | ||
| } | ||
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| # Only restart NVIDIA display adapters, not other display devices (e.g. QEMU VGA) | ||
| $nvidia_devices = Get-PnpDevice -Class Display -FriendlyName "NVIDIA*" | ||
| foreach ($device in $nvidia_devices) { | ||
| Write-Output "Restarting device: $($device.FriendlyName) ($($device.InstanceId))" | ||
| pnputil /disable-device "$($device.InstanceId)" | ||
| pnputil /enable-device "$($device.InstanceId)" | ||
| } | ||
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| # Poll nvidia-smi until NVML can initialize, or give up after ~60s. | ||
| # A fixed sleep is not enough on slower-coming-back-up multi-GPU rows | ||
| # (e.g. 2x H100 MCDM) where pnputil enable returns before NVML is | ||
| # ready. Pattern borrowed from the runner-team `nvgha-driver.ps1`. | ||
| Write-Output "Waiting for nvidia-smi/NVML to come back up after device cycle..." | ||
| $deadline = (Get-Date).AddSeconds(60) | ||
| do { | ||
| Start-Sleep -Seconds 2 | ||
| & nvidia-smi.exe 2>&1 | Out-Null | ||
| } while ($LASTEXITCODE -ne 0 -and (Get-Date) -lt $deadline) | ||
| if ($LASTEXITCODE -ne 0) { | ||
| Write-Error "nvidia-smi did not return cleanly within 60s of the device cycle" | ||
| exit 1 | ||
| } | ||
| } | ||
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| # Run the functions | ||
| Set-DriverMode | ||
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