cpu_linux_loong64.go

     1  // Copyright 2025 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package cpu
     6  
     7  // HWCAP bits. These are exposed by the Linux kernel.
     8  const (
     9  	hwcap_LOONGARCH_LSX  = 1 << 4
    10  	hwcap_LOONGARCH_LASX = 1 << 5
    11  )
    12  
    13  func doinit() {
    14  	// TODO: Features that require kernel support like LSX and LASX can
    15  	// be detected here once needed in std library or by the compiler.
    16  	Loong64.HasLSX = hwcIsSet(hwCap, hwcap_LOONGARCH_LSX)
    17  	Loong64.HasLASX = hwcIsSet(hwCap, hwcap_LOONGARCH_LASX)
    18  }
    19  
    20  func hwcIsSet(hwc uint, val uint) bool {
    21  	return hwc&val != 0
    22  }
    23
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