nvidia-container-toolkit/vendor/github.com/NVIDIA/go-nvlib/pkg/nvlib/info/resolver.go

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/**
# Copyright 2024 NVIDIA CORPORATION
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
**/
package info
// Platform represents a supported plaform.
type Platform string
const (
PlatformAuto = Platform("auto")
PlatformNVML = Platform("nvml")
PlatformTegra = Platform("tegra")
PlatformWSL = Platform("wsl")
PlatformUnknown = Platform("unknown")
)
type platformResolver struct {
logger basicLogger
platform Platform
propertyExtractor PropertyExtractor
}
func (p platformResolver) ResolvePlatform() Platform {
if p.platform != PlatformAuto {
p.logger.Infof("Using requested platform '%s'", p.platform)
return p.platform
}
hasDXCore, reason := p.propertyExtractor.HasDXCore()
p.logger.Debugf("Is WSL-based system? %v: %v", hasDXCore, reason)
hasTegraFiles, reason := p.propertyExtractor.HasTegraFiles()
p.logger.Debugf("Is Tegra-based system? %v: %v", hasTegraFiles, reason)
hasNVML, reason := p.propertyExtractor.HasNvml()
p.logger.Debugf("Is NVML-based system? %v: %v", hasNVML, reason)
usesOnlyNVGPUModule, reason := p.propertyExtractor.UsesOnlyNVGPUModule()
p.logger.Debugf("Uses nvgpu kernel module? %v: %v", usesOnlyNVGPUModule, reason)
switch {
case hasDXCore:
return PlatformWSL
case (hasTegraFiles && !hasNVML), usesOnlyNVGPUModule:
return PlatformTegra
case hasNVML:
return PlatformNVML
default:
return PlatformUnknown
}
}