<sys/platform/x86.h>: Add AVX-VNNI support

Add AVX-VNNI support to <sys/platform/x86.h>.

diff --git a/manual/platform.texi b/manual/platform.texi
index 4f5fdff9d9ef16fd6253fb80dd6e6ca8a06ac621..283f255679643d3ec01a789f1a6f2af454fa825e 100644 (file)
--- a/manual/platform.texi
+++ b/manual/platform.texi
@@ -198,6 +198,9 @@ The supported processor features are:
 @item
 @code{AVX2} -- The AVX2 instruction extensions.
 
+@item
+@code{AVX_VNNI} -- The AVX-VNNI instruction extensions.
+
 @item
 @code{AVX512_4FMAPS} -- The AVX512_4FMAPS instruction extensions.
 

diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c
index 4ecb8cee2cce3c68be3b241e44c82d93e26f93bc..b0fac22c27ee07eec457cb9d5cc8eb0454daac82 100644 (file)
--- a/sysdeps/x86/cpu-features.c
+++ b/sysdeps/x86/cpu-features.c
@@ -119,6 +119,8 @@ update_usable (struct cpu_features *cpu_features)
                  cpu_features->preferred[index_arch_AVX_Fast_Unaligned_Load]
                    |= bit_arch_AVX_Fast_Unaligned_Load;
                }
+             /* Determine if AVX-VNNI is usable.  */
+             CPU_FEATURE_SET_USABLE (cpu_features, AVX_VNNI);
              /* Determine if FMA is usable.  */
              CPU_FEATURE_SET_USABLE (cpu_features, FMA);
              /* Determine if VAES is usable.  */

diff --git a/sysdeps/x86/sys/platform/x86.h b/sysdeps/x86/sys/platform/x86.h
index 00cd1511999fed3524d1e4c37ccd881fad99ce5f..276de1eb6bab7ce9609c8ac136f6d4cb6d6118cc 100644 (file)
--- a/sysdeps/x86/sys/platform/x86.h
+++ b/sysdeps/x86/sys/platform/x86.h
@@ -311,6 +311,7 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int)
 /* COMMON_CPUID_INDEX_7_ECX_1.  */
 
 /* EAX.  */
+#define bit_cpu_AVX_VNNI       (1u << 4)
 #define bit_cpu_AVX512_BF16    (1u << 5)
 
 /* COMMON_CPUID_INDEX_19.  */
@@ -530,6 +531,7 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int)
 /* COMMON_CPUID_INDEX_7_ECX_1.  */
 
 /* EAX.  */
+#define index_cpu_AVX_VNNI     COMMON_CPUID_INDEX_7_ECX_1
 #define index_cpu_AVX512_BF16  COMMON_CPUID_INDEX_7_ECX_1
 
 /* COMMON_CPUID_INDEX_19.  */
@@ -749,6 +751,7 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int)
 /* COMMON_CPUID_INDEX_7_ECX_1.  */
 
 /* EAX.  */
+#define reg_AVX_VNNI           eax
 #define reg_AVX512_BF16                eax
 
 /* COMMON_CPUID_INDEX_19.  */

diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c
index 7262c3a3fa59d609c92f9edfd6a87eb684a2a1ed..e87158d45b72891f854496a7c331db0d23a749aa 100644 (file)
--- a/sysdeps/x86/tst-get-cpu-features.c
+++ b/sysdeps/x86/tst-get-cpu-features.c
@@ -221,6 +221,7 @@ do_test (void)
   CHECK_CPU_FEATURE (XFD);
   CHECK_CPU_FEATURE (INVARIANT_TSC);
   CHECK_CPU_FEATURE (WBNOINVD);
+  CHECK_CPU_FEATURE (AVX_VNNI);
   CHECK_CPU_FEATURE (AVX512_BF16);
   CHECK_CPU_FEATURE (AESKLE);
   CHECK_CPU_FEATURE (WIDE_KL);
@@ -376,6 +377,7 @@ do_test (void)
   CHECK_CPU_FEATURE_USABLE (XFD);
   CHECK_CPU_FEATURE_USABLE (INVARIANT_TSC);
   CHECK_CPU_FEATURE_USABLE (WBNOINVD);
+  CHECK_CPU_FEATURE_USABLE (AVX_VNNI);
   CHECK_CPU_FEATURE_USABLE (AVX512_BF16);
   CHECK_CPU_FEATURE_USABLE (AESKLE);
   CHECK_CPU_FEATURE_USABLE (WIDE_KL);