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vendor/golang.org/x/sys/cpu/cpu_loong64.go

@@ -8,43 +8,5 @@ package cpu
 
 const cacheLineSize = 64
 
-// Bit fields for CPUCFG registers, Related reference documents:
-// https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#_cpucfg
-const (
-	// CPUCFG1 bits
-	cpucfg1_CRC32 = 1 << 25
-
-	// CPUCFG2 bits
-	cpucfg2_LAM_BH = 1 << 27
-	cpucfg2_LAMCAS = 1 << 28
-)
-
 func initOptions() {
-	options = []option{
-		{Name: "lsx", Feature: &Loong64.HasLSX},
-		{Name: "lasx", Feature: &Loong64.HasLASX},
-		{Name: "crc32", Feature: &Loong64.HasCRC32},
-		{Name: "lam_bh", Feature: &Loong64.HasLAM_BH},
-		{Name: "lamcas", Feature: &Loong64.HasLAMCAS},
-	}
-
-	// The CPUCFG data on Loong64 only reflects the hardware capabilities,
-	// not the kernel support status, so features such as LSX and LASX that
-	// require kernel support cannot be obtained from the CPUCFG data.
-	//
-	// These features only require hardware capability support and do not
-	// require kernel specific support, so they can be obtained directly
-	// through CPUCFG
-	cfg1 := get_cpucfg(1)
-	cfg2 := get_cpucfg(2)
-
-	Loong64.HasCRC32 = cfgIsSet(cfg1, cpucfg1_CRC32)
-	Loong64.HasLAMCAS = cfgIsSet(cfg2, cpucfg2_LAMCAS)
-	Loong64.HasLAM_BH = cfgIsSet(cfg2, cpucfg2_LAM_BH)
-}
-
-func get_cpucfg(reg uint32) uint32
-
-func cfgIsSet(cfg uint32, val uint32) bool {
-	return cfg&val != 0
 }