diff options
Diffstat (limited to 'vendor/github.com/minio/sha256-simd/cpuid_other.go')
| -rw-r--r-- | vendor/github.com/minio/sha256-simd/cpuid_other.go | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/vendor/github.com/minio/sha256-simd/cpuid_other.go b/vendor/github.com/minio/sha256-simd/cpuid_other.go deleted file mode 100644 index 97af6a1..0000000 --- a/vendor/github.com/minio/sha256-simd/cpuid_other.go +++ /dev/null | |||
| @@ -1,50 +0,0 @@ | |||
| 1 | // Minio Cloud Storage, (C) 2021 Minio, Inc. | ||
| 2 | // | ||
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| 4 | // you may not use this file except in compliance with the License. | ||
| 5 | // You may obtain a copy of the License at | ||
| 6 | // | ||
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 | ||
| 8 | // | ||
| 9 | // Unless required by applicable law or agreed to in writing, software | ||
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, | ||
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| 12 | // See the License for the specific language governing permissions and | ||
| 13 | // limitations under the License. | ||
| 14 | // | ||
| 15 | |||
| 16 | package sha256 | ||
| 17 | |||
| 18 | import ( | ||
| 19 | "bytes" | ||
| 20 | "io/ioutil" | ||
| 21 | "runtime" | ||
| 22 | |||
| 23 | "github.com/klauspost/cpuid/v2" | ||
| 24 | ) | ||
| 25 | |||
| 26 | var ( | ||
| 27 | hasIntelSha = runtime.GOARCH == "amd64" && cpuid.CPU.Supports(cpuid.SHA, cpuid.SSSE3, cpuid.SSE4) | ||
| 28 | hasAvx512 = cpuid.CPU.Supports(cpuid.AVX512F, cpuid.AVX512DQ, cpuid.AVX512BW, cpuid.AVX512VL) | ||
| 29 | ) | ||
| 30 | |||
| 31 | func hasArmSha2() bool { | ||
| 32 | if cpuid.CPU.Has(cpuid.SHA2) { | ||
| 33 | return true | ||
| 34 | } | ||
| 35 | if runtime.GOARCH != "arm64" || runtime.GOOS != "linux" { | ||
| 36 | return false | ||
| 37 | } | ||
| 38 | |||
| 39 | // Fall back to hacky cpuinfo parsing... | ||
| 40 | const procCPUInfo = "/proc/cpuinfo" | ||
| 41 | |||
| 42 | // Feature to check for. | ||
| 43 | const sha256Feature = "sha2" | ||
| 44 | |||
| 45 | cpuInfo, err := ioutil.ReadFile(procCPUInfo) | ||
| 46 | if err != nil { | ||
| 47 | return false | ||
| 48 | } | ||
| 49 | return bytes.Contains(cpuInfo, []byte(sha256Feature)) | ||
| 50 | } | ||