ircd::info: Fix leaf for avx2/avx512f; additional tsc related.

matrix-construct · Mar 27, 2023 · ffecc8b · ffecc8b
1 parent d4b3a0d
commit ffecc8b
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Showing 2 changed files with 20 additions and 7 deletions.
diff --git a/include/ircd/info.h b/include/ircd/info.h
@@ -124,7 +124,7 @@ namespace ircd::info::hardware::x86
 	extern const string_view vendor;
 	extern const bool sse, sse2, sse3, ssse3, sse4a, sse4_1, sse4_2;
 	extern const bool avx, avx2, avx512f;
-	extern const bool tsc, tsc_constant;
+	extern const bool tsc, tsc_constant, tsc_nonstop;
 }
 
 namespace ircd::info::hardware::arm

diff --git a/ircd/info.cc b/ircd/info.cc
@@ -175,7 +175,7 @@ ircd::info::dump_cpu_info_x86()
 	const auto append{[&support]
 	(const string_view &name, const bool &avail, const int &enable)
 	{
-		strlcat(support, fmt::bsprintf<64>
+		strlcat(support, fmt::bsprintf<32>
 		{
 			" %s:%c%s",
 			name,
@@ -193,7 +193,14 @@ ircd::info::dump_cpu_info_x86()
 	append("avx", hardware::x86::avx, simd::support::avx);
 	append("avx2", hardware::x86::avx2, simd::support::avx2);
 	append("avx512f", hardware::x86::avx512f, simd::support::avx512f);
-	append("constant_tsc", hardware::x86::tsc_constant, -1);
+
+	strlcat(support, fmt::bsprintf<32>
+	{
+		"%s%s%s",
+		hardware::x86::tsc? " tsc": "",
+		hardware::x86::tsc_constant? ":constant": "",
+		hardware::x86::tsc_nonstop?  ":nonstop": "",
+	});
 
 	log::info
 	{
@@ -415,25 +422,31 @@ ircd::info::hardware::x86::avx
 decltype(ircd::info::hardware::x86::avx2)
 ircd::info::hardware::x86::avx2
 {
-	bool(features & (uint128_t(1) << (32 + 5)))
+	bool(extended_features & (uint128_t(1) << (32 + 5)))
 };
 
 decltype(ircd::info::hardware::x86::avx512f)
 ircd::info::hardware::x86::avx512f
 {
-	bool(features & (uint128_t(1) << (32 + 16)))
+	bool(extended_features & (uint128_t(1) << (32 + 16)))
 };
 
 decltype(ircd::info::hardware::x86::tsc)
 ircd::info::hardware::x86::tsc
 {
-	bool(features & (uint128_t(1) << 4))
+	bool(features & (uint128_t(1) << (96 + 4)))
 };
 
 decltype(ircd::info::hardware::x86::tsc_constant)
 ircd::info::hardware::x86::tsc_constant
 {
-	bool(_apmi & (uint128_t(1) << (8)))
+	bool(_apmi & (uint128_t(1) << (96 + 8)))
+};
+
+decltype(ircd::info::hardware::x86::tsc_nonstop)
+ircd::info::hardware::x86::tsc_nonstop
+{
+	bool(_apmi & (uint128_t(1) << (96 + 24)))
 };
 
 #ifdef __x86_64__