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authorLibravatar dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>2025-04-07 11:04:56 +0100
committerLibravatar GitHub <noreply@github.com>2025-04-07 11:04:56 +0100
commit920e20c2d2cff73d6dbdba108e19bc50261d3003 (patch)
tree79e302bd4102247a3f1b870120a2575d4f51a8a1 /vendor/golang.org/x/sys/cpu
parent[chore]: Bump codeberg.org/gruf/go-mutexes from 1.5.1 to 1.5.2 (#3976) (diff)
downloadgotosocial-920e20c2d2cff73d6dbdba108e19bc50261d3003.tar.xz
[chore]: Bump golang.org/x/crypto from 0.36.0 to 0.37.0 (#3975)
Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.36.0 to 0.37.0. - [Commits](https://github.com/golang/crypto/compare/v0.36.0...v0.37.0) --- updated-dependencies: - dependency-name: golang.org/x/crypto dependency-version: 0.37.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Diffstat (limited to 'vendor/golang.org/x/sys/cpu')
-rw-r--r--vendor/golang.org/x/sys/cpu/cpu.go12
-rw-r--r--vendor/golang.org/x/sys/cpu/cpu_linux_loong64.go22
-rw-r--r--vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go2
-rw-r--r--vendor/golang.org/x/sys/cpu/cpu_loong64.go38
-rw-r--r--vendor/golang.org/x/sys/cpu/cpu_loong64.s13
-rw-r--r--vendor/golang.org/x/sys/cpu/parse.go4
6 files changed, 88 insertions, 3 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu.go b/vendor/golang.org/x/sys/cpu/cpu.go
index 9c105f23a..2e73ee197 100644
--- a/vendor/golang.org/x/sys/cpu/cpu.go
+++ b/vendor/golang.org/x/sys/cpu/cpu.go
@@ -149,6 +149,18 @@ var ARM struct {
_ CacheLinePad
}
+// The booleans in Loong64 contain the correspondingly named cpu feature bit.
+// The struct is padded to avoid false sharing.
+var Loong64 struct {
+ _ CacheLinePad
+ HasLSX bool // support 128-bit vector extension
+ HasLASX bool // support 256-bit vector extension
+ HasCRC32 bool // support CRC instruction
+ HasLAM_BH bool // support AM{SWAP/ADD}[_DB].{B/H} instruction
+ HasLAMCAS bool // support AMCAS[_DB].{B/H/W/D} instruction
+ _ CacheLinePad
+}
+
// MIPS64X contains the supported CPU features of the current mips64/mips64le
// platforms. If the current platform is not mips64/mips64le or the current
// operating system is not Linux then all feature flags are false.
diff --git a/vendor/golang.org/x/sys/cpu/cpu_linux_loong64.go b/vendor/golang.org/x/sys/cpu/cpu_linux_loong64.go
new file mode 100644
index 000000000..4f3411432
--- /dev/null
+++ b/vendor/golang.org/x/sys/cpu/cpu_linux_loong64.go
@@ -0,0 +1,22 @@
+// 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.
+
+package cpu
+
+// HWCAP bits. These are exposed by the Linux kernel.
+const (
+ hwcap_LOONGARCH_LSX = 1 << 4
+ hwcap_LOONGARCH_LASX = 1 << 5
+)
+
+func doinit() {
+ // TODO: Features that require kernel support like LSX and LASX can
+ // be detected here once needed in std library or by the compiler.
+ Loong64.HasLSX = hwcIsSet(hwCap, hwcap_LOONGARCH_LSX)
+ Loong64.HasLASX = hwcIsSet(hwCap, hwcap_LOONGARCH_LASX)
+}
+
+func hwcIsSet(hwc uint, val uint) bool {
+ return hwc&val != 0
+}
diff --git a/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go b/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go
index 7d902b684..a428dec9c 100644
--- a/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go
+++ b/vendor/golang.org/x/sys/cpu/cpu_linux_noinit.go
@@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-//go:build linux && !arm && !arm64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x && !riscv64
+//go:build linux && !arm && !arm64 && !loong64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !s390x && !riscv64
package cpu
diff --git a/vendor/golang.org/x/sys/cpu/cpu_loong64.go b/vendor/golang.org/x/sys/cpu/cpu_loong64.go
index 558635850..45ecb29ae 100644
--- a/vendor/golang.org/x/sys/cpu/cpu_loong64.go
+++ b/vendor/golang.org/x/sys/cpu/cpu_loong64.go
@@ -8,5 +8,43 @@ 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
}
diff --git a/vendor/golang.org/x/sys/cpu/cpu_loong64.s b/vendor/golang.org/x/sys/cpu/cpu_loong64.s
new file mode 100644
index 000000000..71cbaf1ce
--- /dev/null
+++ b/vendor/golang.org/x/sys/cpu/cpu_loong64.s
@@ -0,0 +1,13 @@
+// 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"
+
+// func get_cpucfg(reg uint32) uint32
+TEXT ·get_cpucfg(SB), NOSPLIT|NOFRAME, $0
+ MOVW reg+0(FP), R5
+ // CPUCFG R5, R4 = 0x00006ca4
+ WORD $0x00006ca4
+ MOVW R4, ret+8(FP)
+ RET
diff --git a/vendor/golang.org/x/sys/cpu/parse.go b/vendor/golang.org/x/sys/cpu/parse.go
index 762b63d68..56a7e1a17 100644
--- a/vendor/golang.org/x/sys/cpu/parse.go
+++ b/vendor/golang.org/x/sys/cpu/parse.go
@@ -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:]