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cpu.go
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cpu.go
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// Copyright (C) 2017 Google Inc.
//
// 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 device
var (
UnknownCPU = cpu("unknown", UnknownArchitecture)
// Arm
CortexA53 = cpu("Cortex A53", ARMv8a)
CortexA57 = cpu("Cortex A57", ARMv8a)
// Qualcomm
Scorpion = cpu("Scorpion", ARMv7a)
Krait = cpu("Krait", ARMv7a)
Kryo = cpu("Kryo", ARMv8a)
// Nvidia
Denver = cpu("Denver", ARMv8a)
)
var cpuByName = map[string]*CPU{}
func cpu(name string, arch Architecture) *CPU {
cpu := &CPU{
Name: name,
Architecture: arch,
}
cpuByName[name] = cpu
return cpu
}
// CPUByName looks up a CPU from a product name.
// If the product is not know, it returns an UnknownCPU.
func CPUByName(name string) *CPU {
cpu, ok := cpuByName[name]
if !ok {
cpu = &CPU{
Name: name,
Architecture: UnknownArchitecture,
}
}
return cpu
}
// SameAs returns true if the two CPU objects are a match.
func (c *CPU) SameAs(o *CPU) bool {
// If the cpu name is set, treat it as an authoratitive comparison point
if c.Name != "" && o.Name != "" {
return c.Name == o.Name
}
return c.Architecture == o.Architecture
}