diff options
Diffstat (limited to 'vendor/golang.org/x/sys/cpu/cpu_arm64.go')
| -rw-r--r-- | vendor/golang.org/x/sys/cpu/cpu_arm64.go | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu_arm64.go b/vendor/golang.org/x/sys/cpu/cpu_arm64.go index af2aa99f9..f449c679f 100644 --- a/vendor/golang.org/x/sys/cpu/cpu_arm64.go +++ b/vendor/golang.org/x/sys/cpu/cpu_arm64.go @@ -65,10 +65,10 @@ func setMinimalFeatures() { func readARM64Registers() { Initialized = true - parseARM64SystemRegisters(getisar0(), getisar1(), getpfr0()) + parseARM64SystemRegisters(getisar0(), getisar1(), getmmfr1(), getpfr0()) } -func parseARM64SystemRegisters(isar0, isar1, pfr0 uint64) { +func parseARM64SystemRegisters(isar0, isar1, mmfr1, pfr0 uint64) { // ID_AA64ISAR0_EL1 switch extractBits(isar0, 4, 7) { case 1: @@ -152,6 +152,22 @@ func parseARM64SystemRegisters(isar0, isar1, pfr0 uint64) { ARM64.HasI8MM = true } + // ID_AA64MMFR1_EL1 + switch extractBits(mmfr1, 12, 15) { + case 1, 2: + ARM64.HasHPDS = true + } + + switch extractBits(mmfr1, 16, 19) { + case 1: + ARM64.HasLOR = true + } + + switch extractBits(mmfr1, 20, 23) { + case 1, 2, 3: + ARM64.HasPAN = true + } + // ID_AA64PFR0_EL1 switch extractBits(pfr0, 16, 19) { case 0: |