Update
This commit is contained in:
23
vendor/golang.org/x/sys/cpu/cpu.go
generated
vendored
23
vendor/golang.org/x/sys/cpu/cpu.go
generated
vendored
@@ -149,6 +149,18 @@ var ARM struct {
|
||||
_ CacheLinePad
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||||
}
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// The booleans in Loong64 contain the correspondingly named cpu feature bit.
|
||||
// The struct is padded to avoid false sharing.
|
||||
var Loong64 struct {
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_ CacheLinePad
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HasLSX bool // support 128-bit vector extension
|
||||
HasLASX bool // support 256-bit vector extension
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||||
HasCRC32 bool // support CRC instruction
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||||
HasLAM_BH bool // support AM{SWAP/ADD}[_DB].{B/H} instruction
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HasLAMCAS bool // support AMCAS[_DB].{B/H/W/D} instruction
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_ CacheLinePad
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}
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// MIPS64X contains the supported CPU features of the current mips64/mips64le
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// platforms. If the current platform is not mips64/mips64le or the current
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// operating system is not Linux then all feature flags are false.
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@@ -220,6 +232,17 @@ var RISCV64 struct {
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HasZba bool // Address generation instructions extension
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HasZbb bool // Basic bit-manipulation extension
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HasZbs bool // Single-bit instructions extension
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HasZvbb bool // Vector Basic Bit-manipulation
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HasZvbc bool // Vector Carryless Multiplication
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HasZvkb bool // Vector Cryptography Bit-manipulation
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HasZvkt bool // Vector Data-Independent Execution Latency
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HasZvkg bool // Vector GCM/GMAC
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HasZvkn bool // NIST Algorithm Suite (AES/SHA256/SHA512)
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HasZvknc bool // NIST Algorithm Suite with carryless multiply
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HasZvkng bool // NIST Algorithm Suite with GCM
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HasZvks bool // ShangMi Algorithm Suite
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HasZvksc bool // ShangMi Algorithm Suite with carryless multiplication
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HasZvksg bool // ShangMi Algorithm Suite with GCM
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_ CacheLinePad
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}
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12
vendor/golang.org/x/sys/cpu/cpu_arm64.s
generated
vendored
12
vendor/golang.org/x/sys/cpu/cpu_arm64.s
generated
vendored
@@ -9,31 +9,27 @@
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// func getisar0() uint64
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TEXT ·getisar0(SB),NOSPLIT,$0-8
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// get Instruction Set Attributes 0 into x0
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// mrs x0, ID_AA64ISAR0_EL1 = d5380600
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WORD $0xd5380600
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MRS ID_AA64ISAR0_EL1, R0
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MOVD R0, ret+0(FP)
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RET
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// func getisar1() uint64
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TEXT ·getisar1(SB),NOSPLIT,$0-8
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// get Instruction Set Attributes 1 into x0
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// mrs x0, ID_AA64ISAR1_EL1 = d5380620
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WORD $0xd5380620
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MRS ID_AA64ISAR1_EL1, R0
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MOVD R0, ret+0(FP)
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RET
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// func getpfr0() uint64
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TEXT ·getpfr0(SB),NOSPLIT,$0-8
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// get Processor Feature Register 0 into x0
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// mrs x0, ID_AA64PFR0_EL1 = d5380400
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WORD $0xd5380400
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MRS ID_AA64PFR0_EL1, R0
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MOVD R0, ret+0(FP)
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RET
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// func getzfr0() uint64
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TEXT ·getzfr0(SB),NOSPLIT,$0-8
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// get SVE Feature Register 0 into x0
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// mrs x0, ID_AA64ZFR0_EL1 = d5380480
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WORD $0xd5380480
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MRS ID_AA64ZFR0_EL1, R0
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MOVD R0, ret+0(FP)
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RET
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22
vendor/golang.org/x/sys/cpu/cpu_linux_loong64.go
generated
vendored
Normal file
22
vendor/golang.org/x/sys/cpu/cpu_linux_loong64.go
generated
vendored
Normal file
@@ -0,0 +1,22 @@
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// Copyright 2025 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cpu
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// HWCAP bits. These are exposed by the Linux kernel.
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const (
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hwcap_LOONGARCH_LSX = 1 << 4
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hwcap_LOONGARCH_LASX = 1 << 5
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)
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func doinit() {
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// TODO: Features that require kernel support like LSX and LASX can
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// be detected here once needed in std library or by the compiler.
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Loong64.HasLSX = hwcIsSet(hwCap, hwcap_LOONGARCH_LSX)
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Loong64.HasLASX = hwcIsSet(hwCap, hwcap_LOONGARCH_LASX)
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}
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func hwcIsSet(hwc uint, val uint) bool {
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return hwc&val != 0
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}
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2
vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go
generated
vendored
2
vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go
generated
vendored
@@ -2,7 +2,7 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build linux && !arm && !arm64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x && !riscv64
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//go:build linux && !arm && !arm64 && !loong64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x && !riscv64
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package cpu
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23
vendor/golang.org/x/sys/cpu/cpu_linux_riscv64.go
generated
vendored
23
vendor/golang.org/x/sys/cpu/cpu_linux_riscv64.go
generated
vendored
@@ -58,6 +58,15 @@ const (
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riscv_HWPROBE_EXT_ZBA = 0x8
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riscv_HWPROBE_EXT_ZBB = 0x10
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riscv_HWPROBE_EXT_ZBS = 0x20
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riscv_HWPROBE_EXT_ZVBB = 0x20000
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riscv_HWPROBE_EXT_ZVBC = 0x40000
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riscv_HWPROBE_EXT_ZVKB = 0x80000
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riscv_HWPROBE_EXT_ZVKG = 0x100000
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riscv_HWPROBE_EXT_ZVKNED = 0x200000
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riscv_HWPROBE_EXT_ZVKNHB = 0x800000
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riscv_HWPROBE_EXT_ZVKSED = 0x1000000
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riscv_HWPROBE_EXT_ZVKSH = 0x2000000
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riscv_HWPROBE_EXT_ZVKT = 0x4000000
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riscv_HWPROBE_KEY_CPUPERF_0 = 0x5
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riscv_HWPROBE_MISALIGNED_FAST = 0x3
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riscv_HWPROBE_MISALIGNED_MASK = 0x7
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@@ -99,6 +108,20 @@ func doinit() {
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RISCV64.HasZba = isSet(v, riscv_HWPROBE_EXT_ZBA)
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RISCV64.HasZbb = isSet(v, riscv_HWPROBE_EXT_ZBB)
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RISCV64.HasZbs = isSet(v, riscv_HWPROBE_EXT_ZBS)
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RISCV64.HasZvbb = isSet(v, riscv_HWPROBE_EXT_ZVBB)
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RISCV64.HasZvbc = isSet(v, riscv_HWPROBE_EXT_ZVBC)
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RISCV64.HasZvkb = isSet(v, riscv_HWPROBE_EXT_ZVKB)
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RISCV64.HasZvkg = isSet(v, riscv_HWPROBE_EXT_ZVKG)
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RISCV64.HasZvkt = isSet(v, riscv_HWPROBE_EXT_ZVKT)
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// Cryptography shorthand extensions
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RISCV64.HasZvkn = isSet(v, riscv_HWPROBE_EXT_ZVKNED) &&
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isSet(v, riscv_HWPROBE_EXT_ZVKNHB) && RISCV64.HasZvkb && RISCV64.HasZvkt
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RISCV64.HasZvknc = RISCV64.HasZvkn && RISCV64.HasZvbc
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RISCV64.HasZvkng = RISCV64.HasZvkn && RISCV64.HasZvkg
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RISCV64.HasZvks = isSet(v, riscv_HWPROBE_EXT_ZVKSED) &&
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isSet(v, riscv_HWPROBE_EXT_ZVKSH) && RISCV64.HasZvkb && RISCV64.HasZvkt
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RISCV64.HasZvksc = RISCV64.HasZvks && RISCV64.HasZvbc
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RISCV64.HasZvksg = RISCV64.HasZvks && RISCV64.HasZvkg
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}
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if pairs[1].key != -1 {
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v := pairs[1].value & riscv_HWPROBE_MISALIGNED_MASK
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38
vendor/golang.org/x/sys/cpu/cpu_loong64.go
generated
vendored
38
vendor/golang.org/x/sys/cpu/cpu_loong64.go
generated
vendored
@@ -8,5 +8,43 @@ package cpu
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const cacheLineSize = 64
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// Bit fields for CPUCFG registers, Related reference documents:
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// https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#_cpucfg
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const (
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// CPUCFG1 bits
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cpucfg1_CRC32 = 1 << 25
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// CPUCFG2 bits
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cpucfg2_LAM_BH = 1 << 27
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cpucfg2_LAMCAS = 1 << 28
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)
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func initOptions() {
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options = []option{
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{Name: "lsx", Feature: &Loong64.HasLSX},
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{Name: "lasx", Feature: &Loong64.HasLASX},
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{Name: "crc32", Feature: &Loong64.HasCRC32},
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{Name: "lam_bh", Feature: &Loong64.HasLAM_BH},
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{Name: "lamcas", Feature: &Loong64.HasLAMCAS},
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}
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// The CPUCFG data on Loong64 only reflects the hardware capabilities,
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// not the kernel support status, so features such as LSX and LASX that
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// require kernel support cannot be obtained from the CPUCFG data.
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//
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// These features only require hardware capability support and do not
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// require kernel specific support, so they can be obtained directly
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// through CPUCFG
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cfg1 := get_cpucfg(1)
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cfg2 := get_cpucfg(2)
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Loong64.HasCRC32 = cfgIsSet(cfg1, cpucfg1_CRC32)
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Loong64.HasLAMCAS = cfgIsSet(cfg2, cpucfg2_LAMCAS)
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Loong64.HasLAM_BH = cfgIsSet(cfg2, cpucfg2_LAM_BH)
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}
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func get_cpucfg(reg uint32) uint32
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func cfgIsSet(cfg uint32, val uint32) bool {
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return cfg&val != 0
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}
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13
vendor/golang.org/x/sys/cpu/cpu_loong64.s
generated
vendored
Normal file
13
vendor/golang.org/x/sys/cpu/cpu_loong64.s
generated
vendored
Normal file
@@ -0,0 +1,13 @@
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||||
// Copyright 2025 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
#include "textflag.h"
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||||
|
||||
// func get_cpucfg(reg uint32) uint32
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||||
TEXT ·get_cpucfg(SB), NOSPLIT|NOFRAME, $0
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||||
MOVW reg+0(FP), R5
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||||
// CPUCFG R5, R4 = 0x00006ca4
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||||
WORD $0x00006ca4
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||||
MOVW R4, ret+8(FP)
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||||
RET
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||||
12
vendor/golang.org/x/sys/cpu/cpu_riscv64.go
generated
vendored
12
vendor/golang.org/x/sys/cpu/cpu_riscv64.go
generated
vendored
@@ -16,5 +16,17 @@ func initOptions() {
|
||||
{Name: "zba", Feature: &RISCV64.HasZba},
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||||
{Name: "zbb", Feature: &RISCV64.HasZbb},
|
||||
{Name: "zbs", Feature: &RISCV64.HasZbs},
|
||||
// RISC-V Cryptography Extensions
|
||||
{Name: "zvbb", Feature: &RISCV64.HasZvbb},
|
||||
{Name: "zvbc", Feature: &RISCV64.HasZvbc},
|
||||
{Name: "zvkb", Feature: &RISCV64.HasZvkb},
|
||||
{Name: "zvkg", Feature: &RISCV64.HasZvkg},
|
||||
{Name: "zvkt", Feature: &RISCV64.HasZvkt},
|
||||
{Name: "zvkn", Feature: &RISCV64.HasZvkn},
|
||||
{Name: "zvknc", Feature: &RISCV64.HasZvknc},
|
||||
{Name: "zvkng", Feature: &RISCV64.HasZvkng},
|
||||
{Name: "zvks", Feature: &RISCV64.HasZvks},
|
||||
{Name: "zvksc", Feature: &RISCV64.HasZvksc},
|
||||
{Name: "zvksg", Feature: &RISCV64.HasZvksg},
|
||||
}
|
||||
}
|
||||
|
||||
170
vendor/golang.org/x/sys/cpu/cpu_x86.go
generated
vendored
170
vendor/golang.org/x/sys/cpu/cpu_x86.go
generated
vendored
@@ -64,6 +64,80 @@ func initOptions() {
|
||||
|
||||
func archInit() {
|
||||
|
||||
// From internal/cpu
|
||||
const (
|
||||
// eax bits
|
||||
cpuid_AVXVNNI = 1 << 4
|
||||
|
||||
// ecx bits
|
||||
cpuid_SSE3 = 1 << 0
|
||||
cpuid_PCLMULQDQ = 1 << 1
|
||||
cpuid_AVX512VBMI = 1 << 1
|
||||
cpuid_AVX512VBMI2 = 1 << 6
|
||||
cpuid_SSSE3 = 1 << 9
|
||||
cpuid_AVX512GFNI = 1 << 8
|
||||
cpuid_AVX512VAES = 1 << 9
|
||||
cpuid_AVX512VNNI = 1 << 11
|
||||
cpuid_AVX512BITALG = 1 << 12
|
||||
cpuid_FMA = 1 << 12
|
||||
cpuid_AVX512VPOPCNTDQ = 1 << 14
|
||||
cpuid_SSE41 = 1 << 19
|
||||
cpuid_SSE42 = 1 << 20
|
||||
cpuid_POPCNT = 1 << 23
|
||||
cpuid_AES = 1 << 25
|
||||
cpuid_OSXSAVE = 1 << 27
|
||||
cpuid_AVX = 1 << 28
|
||||
|
||||
// "Extended Feature Flag" bits returned in EBX for CPUID EAX=0x7 ECX=0x0
|
||||
cpuid_BMI1 = 1 << 3
|
||||
cpuid_AVX2 = 1 << 5
|
||||
cpuid_BMI2 = 1 << 8
|
||||
cpuid_ERMS = 1 << 9
|
||||
cpuid_AVX512F = 1 << 16
|
||||
cpuid_AVX512DQ = 1 << 17
|
||||
cpuid_ADX = 1 << 19
|
||||
cpuid_AVX512CD = 1 << 28
|
||||
cpuid_SHA = 1 << 29
|
||||
cpuid_AVX512BW = 1 << 30
|
||||
cpuid_AVX512VL = 1 << 31
|
||||
|
||||
// "Extended Feature Flag" bits returned in ECX for CPUID EAX=0x7 ECX=0x0
|
||||
cpuid_AVX512_VBMI = 1 << 1
|
||||
cpuid_AVX512_VBMI2 = 1 << 6
|
||||
cpuid_GFNI = 1 << 8
|
||||
cpuid_AVX512VPCLMULQDQ = 1 << 10
|
||||
cpuid_AVX512_BITALG = 1 << 12
|
||||
|
||||
// edx bits
|
||||
cpuid_FSRM = 1 << 4
|
||||
// edx bits for CPUID 0x80000001
|
||||
cpuid_RDTSCP = 1 << 27
|
||||
)
|
||||
// Additional constants not in internal/cpu
|
||||
const (
|
||||
// eax=1: edx
|
||||
cpuid_SSE2 = 1 << 26
|
||||
// eax=1: ecx
|
||||
cpuid_CX16 = 1 << 13
|
||||
cpuid_RDRAND = 1 << 30
|
||||
// eax=7,ecx=0: ebx
|
||||
cpuid_RDSEED = 1 << 18
|
||||
cpuid_AVX512IFMA = 1 << 21
|
||||
cpuid_AVX512PF = 1 << 26
|
||||
cpuid_AVX512ER = 1 << 27
|
||||
// eax=7,ecx=0: edx
|
||||
cpuid_AVX5124VNNIW = 1 << 2
|
||||
cpuid_AVX5124FMAPS = 1 << 3
|
||||
cpuid_AMXBF16 = 1 << 22
|
||||
cpuid_AMXTile = 1 << 24
|
||||
cpuid_AMXInt8 = 1 << 25
|
||||
// eax=7,ecx=1: eax
|
||||
cpuid_AVX512BF16 = 1 << 5
|
||||
cpuid_AVXIFMA = 1 << 23
|
||||
// eax=7,ecx=1: edx
|
||||
cpuid_AVXVNNIInt8 = 1 << 4
|
||||
)
|
||||
|
||||
Initialized = true
|
||||
|
||||
maxID, _, _, _ := cpuid(0, 0)
|
||||
@@ -73,90 +147,90 @@ func archInit() {
|
||||
}
|
||||
|
||||
_, _, ecx1, edx1 := cpuid(1, 0)
|
||||
X86.HasSSE2 = isSet(26, edx1)
|
||||
X86.HasSSE2 = isSet(edx1, cpuid_SSE2)
|
||||
|
||||
X86.HasSSE3 = isSet(0, ecx1)
|
||||
X86.HasPCLMULQDQ = isSet(1, ecx1)
|
||||
X86.HasSSSE3 = isSet(9, ecx1)
|
||||
X86.HasFMA = isSet(12, ecx1)
|
||||
X86.HasCX16 = isSet(13, ecx1)
|
||||
X86.HasSSE41 = isSet(19, ecx1)
|
||||
X86.HasSSE42 = isSet(20, ecx1)
|
||||
X86.HasPOPCNT = isSet(23, ecx1)
|
||||
X86.HasAES = isSet(25, ecx1)
|
||||
X86.HasOSXSAVE = isSet(27, ecx1)
|
||||
X86.HasRDRAND = isSet(30, ecx1)
|
||||
X86.HasSSE3 = isSet(ecx1, cpuid_SSE3)
|
||||
X86.HasPCLMULQDQ = isSet(ecx1, cpuid_PCLMULQDQ)
|
||||
X86.HasSSSE3 = isSet(ecx1, cpuid_SSSE3)
|
||||
X86.HasFMA = isSet(ecx1, cpuid_FMA)
|
||||
X86.HasCX16 = isSet(ecx1, cpuid_CX16)
|
||||
X86.HasSSE41 = isSet(ecx1, cpuid_SSE41)
|
||||
X86.HasSSE42 = isSet(ecx1, cpuid_SSE42)
|
||||
X86.HasPOPCNT = isSet(ecx1, cpuid_POPCNT)
|
||||
X86.HasAES = isSet(ecx1, cpuid_AES)
|
||||
X86.HasOSXSAVE = isSet(ecx1, cpuid_OSXSAVE)
|
||||
X86.HasRDRAND = isSet(ecx1, cpuid_RDRAND)
|
||||
|
||||
var osSupportsAVX, osSupportsAVX512 bool
|
||||
// For XGETBV, OSXSAVE bit is required and sufficient.
|
||||
if X86.HasOSXSAVE {
|
||||
eax, _ := xgetbv()
|
||||
// Check if XMM and YMM registers have OS support.
|
||||
osSupportsAVX = isSet(1, eax) && isSet(2, eax)
|
||||
osSupportsAVX = isSet(eax, 1<<1) && isSet(eax, 1<<2)
|
||||
|
||||
if runtime.GOOS == "darwin" {
|
||||
// Darwin requires special AVX512 checks, see cpu_darwin_x86.go
|
||||
osSupportsAVX512 = osSupportsAVX && darwinSupportsAVX512()
|
||||
} else {
|
||||
// Check if OPMASK and ZMM registers have OS support.
|
||||
osSupportsAVX512 = osSupportsAVX && isSet(5, eax) && isSet(6, eax) && isSet(7, eax)
|
||||
osSupportsAVX512 = osSupportsAVX && isSet(eax, 1<<5) && isSet(eax, 1<<6) && isSet(eax, 1<<7)
|
||||
}
|
||||
}
|
||||
|
||||
X86.HasAVX = isSet(28, ecx1) && osSupportsAVX
|
||||
X86.HasAVX = isSet(ecx1, cpuid_AVX) && osSupportsAVX
|
||||
|
||||
if maxID < 7 {
|
||||
return
|
||||
}
|
||||
|
||||
eax7, ebx7, ecx7, edx7 := cpuid(7, 0)
|
||||
X86.HasBMI1 = isSet(3, ebx7)
|
||||
X86.HasAVX2 = isSet(5, ebx7) && osSupportsAVX
|
||||
X86.HasBMI2 = isSet(8, ebx7)
|
||||
X86.HasERMS = isSet(9, ebx7)
|
||||
X86.HasRDSEED = isSet(18, ebx7)
|
||||
X86.HasADX = isSet(19, ebx7)
|
||||
X86.HasBMI1 = isSet(ebx7, cpuid_BMI1)
|
||||
X86.HasAVX2 = isSet(ebx7, cpuid_AVX2) && osSupportsAVX
|
||||
X86.HasBMI2 = isSet(ebx7, cpuid_BMI2)
|
||||
X86.HasERMS = isSet(ebx7, cpuid_ERMS)
|
||||
X86.HasRDSEED = isSet(ebx7, cpuid_RDSEED)
|
||||
X86.HasADX = isSet(ebx7, cpuid_ADX)
|
||||
|
||||
X86.HasAVX512 = isSet(16, ebx7) && osSupportsAVX512 // Because avx-512 foundation is the core required extension
|
||||
X86.HasAVX512 = isSet(ebx7, cpuid_AVX512F) && osSupportsAVX512 // Because avx-512 foundation is the core required extension
|
||||
if X86.HasAVX512 {
|
||||
X86.HasAVX512F = true
|
||||
X86.HasAVX512CD = isSet(28, ebx7)
|
||||
X86.HasAVX512ER = isSet(27, ebx7)
|
||||
X86.HasAVX512PF = isSet(26, ebx7)
|
||||
X86.HasAVX512VL = isSet(31, ebx7)
|
||||
X86.HasAVX512BW = isSet(30, ebx7)
|
||||
X86.HasAVX512DQ = isSet(17, ebx7)
|
||||
X86.HasAVX512IFMA = isSet(21, ebx7)
|
||||
X86.HasAVX512VBMI = isSet(1, ecx7)
|
||||
X86.HasAVX5124VNNIW = isSet(2, edx7)
|
||||
X86.HasAVX5124FMAPS = isSet(3, edx7)
|
||||
X86.HasAVX512VPOPCNTDQ = isSet(14, ecx7)
|
||||
X86.HasAVX512VPCLMULQDQ = isSet(10, ecx7)
|
||||
X86.HasAVX512VNNI = isSet(11, ecx7)
|
||||
X86.HasAVX512GFNI = isSet(8, ecx7)
|
||||
X86.HasAVX512VAES = isSet(9, ecx7)
|
||||
X86.HasAVX512VBMI2 = isSet(6, ecx7)
|
||||
X86.HasAVX512BITALG = isSet(12, ecx7)
|
||||
X86.HasAVX512CD = isSet(ebx7, cpuid_AVX512CD)
|
||||
X86.HasAVX512ER = isSet(ebx7, cpuid_AVX512ER)
|
||||
X86.HasAVX512PF = isSet(ebx7, cpuid_AVX512PF)
|
||||
X86.HasAVX512VL = isSet(ebx7, cpuid_AVX512VL)
|
||||
X86.HasAVX512BW = isSet(ebx7, cpuid_AVX512BW)
|
||||
X86.HasAVX512DQ = isSet(ebx7, cpuid_AVX512DQ)
|
||||
X86.HasAVX512IFMA = isSet(ebx7, cpuid_AVX512IFMA)
|
||||
X86.HasAVX512VBMI = isSet(ecx7, cpuid_AVX512_VBMI)
|
||||
X86.HasAVX5124VNNIW = isSet(edx7, cpuid_AVX5124VNNIW)
|
||||
X86.HasAVX5124FMAPS = isSet(edx7, cpuid_AVX5124FMAPS)
|
||||
X86.HasAVX512VPOPCNTDQ = isSet(ecx7, cpuid_AVX512VPOPCNTDQ)
|
||||
X86.HasAVX512VPCLMULQDQ = isSet(ecx7, cpuid_AVX512VPCLMULQDQ)
|
||||
X86.HasAVX512VNNI = isSet(ecx7, cpuid_AVX512VNNI)
|
||||
X86.HasAVX512GFNI = isSet(ecx7, cpuid_AVX512GFNI)
|
||||
X86.HasAVX512VAES = isSet(ecx7, cpuid_AVX512VAES)
|
||||
X86.HasAVX512VBMI2 = isSet(ecx7, cpuid_AVX512VBMI2)
|
||||
X86.HasAVX512BITALG = isSet(ecx7, cpuid_AVX512BITALG)
|
||||
}
|
||||
|
||||
X86.HasAMXTile = isSet(24, edx7)
|
||||
X86.HasAMXInt8 = isSet(25, edx7)
|
||||
X86.HasAMXBF16 = isSet(22, edx7)
|
||||
X86.HasAMXTile = isSet(edx7, cpuid_AMXTile)
|
||||
X86.HasAMXInt8 = isSet(edx7, cpuid_AMXInt8)
|
||||
X86.HasAMXBF16 = isSet(edx7, cpuid_AMXBF16)
|
||||
|
||||
// These features depend on the second level of extended features.
|
||||
if eax7 >= 1 {
|
||||
eax71, _, _, edx71 := cpuid(7, 1)
|
||||
if X86.HasAVX512 {
|
||||
X86.HasAVX512BF16 = isSet(5, eax71)
|
||||
X86.HasAVX512BF16 = isSet(eax71, cpuid_AVX512BF16)
|
||||
}
|
||||
if X86.HasAVX {
|
||||
X86.HasAVXIFMA = isSet(23, eax71)
|
||||
X86.HasAVXVNNI = isSet(4, eax71)
|
||||
X86.HasAVXVNNIInt8 = isSet(4, edx71)
|
||||
X86.HasAVXIFMA = isSet(eax71, cpuid_AVXIFMA)
|
||||
X86.HasAVXVNNI = isSet(eax71, cpuid_AVXVNNI)
|
||||
X86.HasAVXVNNIInt8 = isSet(edx71, cpuid_AVXVNNIInt8)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func isSet(bitpos uint, value uint32) bool {
|
||||
return value&(1<<bitpos) != 0
|
||||
func isSet(hwc uint32, value uint32) bool {
|
||||
return hwc&value != 0
|
||||
}
|
||||
|
||||
4
vendor/golang.org/x/sys/cpu/parse.go
generated
vendored
4
vendor/golang.org/x/sys/cpu/parse.go
generated
vendored
@@ -13,7 +13,7 @@ import "strconv"
|
||||
// https://golang.org/cl/209597.
|
||||
func parseRelease(rel string) (major, minor, patch int, ok bool) {
|
||||
// Strip anything after a dash or plus.
|
||||
for i := 0; i < len(rel); i++ {
|
||||
for i := range len(rel) {
|
||||
if rel[i] == '-' || rel[i] == '+' {
|
||||
rel = rel[:i]
|
||||
break
|
||||
@@ -21,7 +21,7 @@ func parseRelease(rel string) (major, minor, patch int, ok bool) {
|
||||
}
|
||||
|
||||
next := func() (int, bool) {
|
||||
for i := 0; i < len(rel); i++ {
|
||||
for i := range len(rel) {
|
||||
if rel[i] == '.' {
|
||||
ver, err := strconv.Atoi(rel[:i])
|
||||
rel = rel[i+1:]
|
||||
|
||||
Reference in New Issue
Block a user