diff options
Diffstat (limited to 'vendor/github.com/klauspost/cpuid/cpuid_arm64.s')
| -rw-r--r-- | vendor/github.com/klauspost/cpuid/cpuid_arm64.s | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/vendor/github.com/klauspost/cpuid/cpuid_arm64.s b/vendor/github.com/klauspost/cpuid/cpuid_arm64.s new file mode 100644 index 0000000..8975ee8 --- /dev/null +++ b/vendor/github.com/klauspost/cpuid/cpuid_arm64.s @@ -0,0 +1,26 @@ +// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file. + +//+build arm64,!gccgo + +// See https://www.kernel.org/doc/Documentation/arm64/cpu-feature-registers.txt + +// func getMidr +TEXT ·getMidr(SB), 7, $0 + WORD $0xd5380000 // mrs x0, midr_el1 /* Main ID Register */ + MOVD R0, midr+0(FP) + RET + +// func getProcFeatures +TEXT ·getProcFeatures(SB), 7, $0 + WORD $0xd5380400 // mrs x0, id_aa64pfr0_el1 /* Processor Feature Register 0 */ + MOVD R0, procFeatures+0(FP) + RET + +// func getInstAttributes +TEXT ·getInstAttributes(SB), 7, $0 + WORD $0xd5380600 // mrs x0, id_aa64isar0_el1 /* Instruction Set Attribute Register 0 */ + WORD $0xd5380621 // mrs x1, id_aa64isar1_el1 /* Instruction Set Attribute Register 1 */ + MOVD R0, instAttrReg0+0(FP) + MOVD R1, instAttrReg1+8(FP) + RET + |