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From: "H.J. Lu" <hjl.tools@gmail.com>
To: libc-alpha@sourceware.org
Subject: [PATCH 16/19] <sys/platform/x86.h>: Add AVX-VNNI-INT8 support
Date: Wed,  5 Apr 2023 09:21:41 -0700	[thread overview]
Message-ID: <20230405162144.984598-17-hjl.tools@gmail.com> (raw)
In-Reply-To: <20230405162144.984598-1-hjl.tools@gmail.com>

Add AVX-VNNI-INT8 support to <sys/platform/x86.h>.
---
 manual/platform.texi               | 3 +++
 sysdeps/x86/bits/platform/x86.h    | 6 ++++++
 sysdeps/x86/cpu-features.c         | 2 ++
 sysdeps/x86/include/cpu-features.h | 7 +++++++
 sysdeps/x86/tst-get-cpu-features.c | 2 ++
 5 files changed, 20 insertions(+)

diff --git a/manual/platform.texi b/manual/platform.texi
index bfccd024a5..873ea0a84a 100644
--- a/manual/platform.texi
+++ b/manual/platform.texi
@@ -225,6 +225,9 @@ Leaf (EAX = 23H).
 @item
 @code{AVX_VNNI} -- The AVX-VNNI instruction extensions.
 
+@item
+@code{AVX_VNNI_INT8} -- The AVX-VNNI-INT8 instruction extensions.
+
 @item
 @code{AVX512_4FMAPS} -- The AVX512_4FMAPS instruction extensions.
 
diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h
index 57973e9a6c..7b239ef188 100644
--- a/sysdeps/x86/bits/platform/x86.h
+++ b/sysdeps/x86/bits/platform/x86.h
@@ -304,6 +304,12 @@ enum
   x86_cpu_LAM			= x86_cpu_index_7_ecx_1_eax + 26,
   x86_cpu_MSRLIST		= x86_cpu_index_7_ecx_1_eax + 27,
 
+  x86_cpu_index_7_ecx_1_edx
+    = (CPUID_INDEX_7_ECX_1 * 8 * 4 * sizeof (unsigned int)
+       + cpuid_register_index_edx * 8 * sizeof (unsigned int)),
+
+  x86_cpu_AVX_VNNI_INT8		= x86_cpu_index_7_ecx_1_edx + 4,
+
   x86_cpu_index_19_ebx
     = (CPUID_INDEX_19 * 8 * 4 * sizeof (unsigned int)
        + cpuid_register_index_ebx * 8 * sizeof (unsigned int)),
diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c
index 06fae443a8..f34f4884eb 100644
--- a/sysdeps/x86/cpu-features.c
+++ b/sysdeps/x86/cpu-features.c
@@ -143,6 +143,8 @@ update_active (struct cpu_features *cpu_features)
 	      CPU_FEATURE_SET_ACTIVE (cpu_features, AVX_IFMA);
 	      /* Determine if AVX-VNNI is usable.  */
 	      CPU_FEATURE_SET_ACTIVE (cpu_features, AVX_VNNI);
+	      /* Determine if AVX-VNNI-INT8 is usable.  */
+	      CPU_FEATURE_SET_ACTIVE (cpu_features, AVX_VNNI_INT8);
 	      /* Determine if FMA is usable.  */
 	      CPU_FEATURE_SET_ACTIVE (cpu_features, FMA);
 	      /* Determine if VAES is usable.  */
diff --git a/sysdeps/x86/include/cpu-features.h b/sysdeps/x86/include/cpu-features.h
index 1f4b6831f9..5e09c58d9c 100644
--- a/sysdeps/x86/include/cpu-features.h
+++ b/sysdeps/x86/include/cpu-features.h
@@ -314,6 +314,9 @@ enum
 #define bit_cpu_AVX_IFMA	(1u << 23)
 #define bit_cpu_LAM		(1u << 26)
 
+/* EDX.  */
+#define bit_cpu_AVX_VNNI_INT8	(1u << 4)
+
 /* CPUID_INDEX_19.  */
 
 /* EBX.  */
@@ -552,6 +555,7 @@ enum
 #define index_cpu_HRESET	CPUID_INDEX_7_ECX_1
 #define index_cpu_AVX_IFMA	CPUID_INDEX_7_ECX_1
 #define index_cpu_LAM		CPUID_INDEX_7_ECX_1
+#define index_cpu_AVX_VNNI_INT8	CPUID_INDEX_7_ECX_1
 
 /* CPUID_INDEX_19.  */
 
@@ -792,6 +796,9 @@ enum
 #define reg_AVX_IFMA		eax
 #define reg_LAM			eax
 
+/* EDX.  */
+#define reg_AVX_VNNI_INT8	edx
+
 /* CPUID_INDEX_19.  */
 
 /* EBX.  */
diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c
index 0c948c2b04..f0585cf330 100644
--- a/sysdeps/x86/tst-get-cpu-features.c
+++ b/sysdeps/x86/tst-get-cpu-features.c
@@ -215,6 +215,7 @@ do_test (void)
   CHECK_CPU_FEATURE_PRESENT (AVX_IFMA);
   CHECK_CPU_FEATURE_PRESENT (LAM);
   CHECK_CPU_FEATURE_PRESENT (MSRLIST);
+  CHECK_CPU_FEATURE_PRESENT (AVX_VNNI_INT8);
   CHECK_CPU_FEATURE_PRESENT (AESKLE);
   CHECK_CPU_FEATURE_PRESENT (WIDE_KL);
   CHECK_CPU_FEATURE_PRESENT (PTWRITE);
@@ -382,6 +383,7 @@ do_test (void)
   CHECK_CPU_FEATURE_ACTIVE (FSRCS);
   CHECK_CPU_FEATURE_ACTIVE (AMX_FP16);
   CHECK_CPU_FEATURE_ACTIVE (AVX_IFMA);
+  CHECK_CPU_FEATURE_ACTIVE (AVX_VNNI_INT8);
   CHECK_CPU_FEATURE_ACTIVE (AESKLE);
   CHECK_CPU_FEATURE_ACTIVE (WIDE_KL);
   CHECK_CPU_FEATURE_ACTIVE (PTWRITE);
-- 
2.39.2


  parent reply	other threads:[~2023-04-05 16:21 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-05 16:21 [PATCH 00/19] <sys/platform/x86.h>: Update CPUID features H.J. Lu
2023-04-05 16:21 ` [PATCH 01/19] <bits/platform/x86.h>: Rename to x86_cpu_INDEX_7_ECX_15 H.J. Lu
2023-04-05 21:02   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 02/19] platform.texi: Move LAM after LAHF64_SAHF64 H.J. Lu
2023-04-05 21:02   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 03/19] <sys/platform/x86.h>: Add LA57 support H.J. Lu
2023-04-05 18:19   ` Noah Goldstein
2023-04-05 18:38     ` H.J. Lu
2023-04-05 21:02       ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 04/19] <sys/platform/x86.h>: Add BUS_LOCK_DETECT support H.J. Lu
2023-04-05 18:20   ` Noah Goldstein
2023-04-05 21:03     ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 05/19] <sys/platform/x86.h>: Add SGX-KEYS support H.J. Lu
2023-04-05 18:21   ` Noah Goldstein
2023-04-05 18:39     ` H.J. Lu
2023-04-05 21:03       ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 06/19] <sys/platform/x86.h>: Add RTM_FORCE_ABORT support H.J. Lu
2023-04-05 21:03   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 07/19] <sys/platform/x86.h>: Add LBR support H.J. Lu
2023-04-05 21:03   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 08/19] <sys/platform/x86.h>: Add RAO-INT support H.J. Lu
2023-04-05 21:03   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 09/19] <sys/platform/x86.h>: Add LASS support H.J. Lu
2023-04-05 21:04   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 10/19] <sys/platform/x86.h>: Add CMPCCXADD support H.J. Lu
2023-04-05 21:04   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 11/19] <sys/platform/x86.h>: Add ArchPerfmonExt support H.J. Lu
2023-04-05 21:04   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 12/19] <sys/platform/x86.h>: Add WRMSRNS support H.J. Lu
2023-04-05 21:04   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 13/19] <sys/platform/x86.h>: Add AMX-FP16 support H.J. Lu
2023-04-05 21:04   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 14/19] <sys/platform/x86.h>: Add AVX-IFMA support H.J. Lu
2023-04-05 21:05   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 15/19] <sys/platform/x86.h>: Add MSRLIST support H.J. Lu
2023-04-05 21:05   ` Noah Goldstein
2023-04-05 16:21 ` H.J. Lu [this message]
2023-04-05 21:05   ` [PATCH 16/19] <sys/platform/x86.h>: Add AVX-VNNI-INT8 support Noah Goldstein
2023-04-05 16:21 ` [PATCH 17/19] <sys/platform/x86.h>: Add AVX-NE-CONVERT support H.J. Lu
2023-04-05 21:05   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 18/19] <sys/platform/x86.h>: Add AMX-COMPLEX support H.J. Lu
2023-04-05 21:05   ` Noah Goldstein
2023-04-05 16:21 ` [PATCH 19/19] <sys/platform/x86.h>: Add PREFETCHI support H.J. Lu
2023-04-05 21:05   ` Noah Goldstein

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