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[69.181.90.243]) by smtp.gmail.com with ESMTPSA id n16sm6923410pfo.150.2020.10.08.09.12.33 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Oct 2020 09:12:33 -0700 (PDT) Received: from gnu-cfl-2.localdomain (localhost [IPv6:::1]) by gnu-cfl-2.localdomain (Postfix) with ESMTP id D94FD1A021F for ; Thu, 8 Oct 2020 09:12:32 -0700 (PDT) To: libc-alpha@sourceware.org Subject: [PATCH 3/5] : Add AVX-VNNI support Date: Thu, 8 Oct 2020 09:12:30 -0700 Message-Id: <20201008161232.135513-4-hjl.tools@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201008161232.135513-1-hjl.tools@gmail.com> References: <20201008161232.135513-1-hjl.tools@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-3040.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: "H.J. Lu via Libc-alpha" From: "H.J. Lu" Reply-To: "H.J. Lu" Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" Add AVX-VNNI support to . --- manual/platform.texi | 3 +++ sysdeps/x86/cpu-features.c | 2 ++ sysdeps/x86/sys/platform/x86.h | 3 +++ sysdeps/x86/tst-get-cpu-features.c | 2 ++ 4 files changed, 10 insertions(+) diff --git a/manual/platform.texi b/manual/platform.texi index 4f5fdff9d9..283f255679 100644 --- 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 4ecb8cee2c..b0fac22c27 100644 --- 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 00cd151199..276de1eb6b 100644 --- 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 7262c3a3fa..e87158d45b 100644 --- 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);