From 920e20c2d2cff73d6dbdba108e19bc50261d3003 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 7 Apr 2025 11:04:56 +0100
Subject: [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>
---
 vendor/golang.org/x/sys/cpu/cpu_loong64.go | 38 ++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

(limited to 'vendor/golang.org/x/sys/cpu/cpu_loong64.go')

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
 }
-- 
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