From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1039) id A99B23858D39; Thu, 27 Jul 2023 15:43:42 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A99B23858D39 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1690472622; bh=87WbE8uhnp9LDuLXZQzwGPpz8ipSYI1+tOUGCZgxtL4=; h=From:To:Subject:Date:From; b=oP6BK3npMWPpiTsL1SHWDqlp3vfo8NEcrfwDzpSfU5yYzBiWyeRrmtlRUSx8uiwAs ycpzkq4wGc2DN1U20UTrPIUm2LJD2D3qVKognWGZfGiXLxS4SK1zxeyQjxn1YkNOET E+LKFvAScMTDiKKDQQMnN2d00YbTzEViAP90Ac28= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: H.J. Lu To: glibc-cvs@sourceware.org Subject: [glibc] : Add APX support X-Act-Checkin: glibc X-Git-Author: H.J. Lu X-Git-Refname: refs/heads/master X-Git-Oldrev: c8c8dbbf279b0ebaed3e871f626ba7dde876d247 X-Git-Newrev: 1547d6a64f4b981a06fd46ee446425a32558f2d0 Message-Id: <20230727154342.A99B23858D39@sourceware.org> Date: Thu, 27 Jul 2023 15:43:42 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1547d6a64f4b981a06fd46ee446425a32558f2d0 commit 1547d6a64f4b981a06fd46ee446425a32558f2d0 Author: H.J. Lu Date: Wed Jul 26 08:20:16 2023 -0700 : Add APX support Add support for Intel Advanced Performance Extensions: https://www.intel.com/content/www/us/en/developer/articles/technical/advanced-performance-extensions-apx.html to . Diff: --- manual/platform.texi | 3 +++ sysdeps/x86/bits/platform/x86.h | 1 + sysdeps/x86/cpu-features.c | 4 ++++ sysdeps/x86/include/cpu-features.h | 4 ++++ sysdeps/x86/tst-get-cpu-features.c | 2 ++ 5 files changed, 14 insertions(+) diff --git a/manual/platform.texi b/manual/platform.texi index c6ed73cb97..2a2d557067 100644 --- a/manual/platform.texi +++ b/manual/platform.texi @@ -209,6 +209,9 @@ The supported processor features are: @item @code{AMX_TILE} -- Tile architecture. +@item +@code{APX_F} -- The APX instruction extensions. + @item @code{ARCH_CAPABILITIES} -- IA32_ARCH_CAPABILITIES MSR. diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h index 6555f9b91d..88ca071aa7 100644 --- a/sysdeps/x86/bits/platform/x86.h +++ b/sysdeps/x86/bits/platform/x86.h @@ -312,6 +312,7 @@ enum x86_cpu_AVX_NE_CONVERT = x86_cpu_index_7_ecx_1_edx + 5, x86_cpu_AMX_COMPLEX = x86_cpu_index_7_ecx_1_edx + 8, x86_cpu_PREFETCHI = x86_cpu_index_7_ecx_1_edx + 14, + x86_cpu_APX_F = x86_cpu_index_7_ecx_1_edx + 21, x86_cpu_index_19_ebx = (CPUID_INDEX_19 * 8 * 4 * sizeof (unsigned int) diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c index 9ac195810f..badf088874 100644 --- a/sysdeps/x86/cpu-features.c +++ b/sysdeps/x86/cpu-features.c @@ -226,6 +226,10 @@ update_active (struct cpu_features *cpu_features) CPU_FEATURE_SET_ACTIVE (cpu_features, AMX_COMPLEX); } + /* APX is usable only if the APX state is supported by kernel. */ + if ((xcrlow & bit_APX_state) != 0) + CPU_FEATURE_SET_ACTIVE (cpu_features, APX_F); + /* These features are usable only when OSXSAVE is enabled. */ CPU_FEATURE_SET (cpu_features, XSAVE); CPU_FEATURE_SET_ACTIVE (cpu_features, XSAVEOPT); diff --git a/sysdeps/x86/include/cpu-features.h b/sysdeps/x86/include/cpu-features.h index c740e1a5fc..eb30d342a6 100644 --- a/sysdeps/x86/include/cpu-features.h +++ b/sysdeps/x86/include/cpu-features.h @@ -319,6 +319,7 @@ enum #define bit_cpu_AVX_NE_CONVERT (1u << 5) #define bit_cpu_AMX_COMPLEX (1u << 8) #define bit_cpu_PREFETCHI (1u << 14) +#define bit_cpu_APX_F (1u << 21) /* CPUID_INDEX_19. */ @@ -562,6 +563,7 @@ enum #define index_cpu_AVX_NE_CONVERT CPUID_INDEX_7_ECX_1 #define index_cpu_AMX_COMPLEX CPUID_INDEX_7_ECX_1 #define index_cpu_PREFETCHI CPUID_INDEX_7_ECX_1 +#define index_cpu_APX_F CPUID_INDEX_7_ECX_1 /* CPUID_INDEX_19. */ @@ -807,6 +809,7 @@ enum #define reg_AVX_NE_CONVERT edx #define reg_AMX_COMPLEX edx #define reg_PREFETCHI edx +#define reg_APX_F edx /* CPUID_INDEX_19. */ @@ -845,6 +848,7 @@ enum #define bit_ZMM16_31_state (1u << 7) #define bit_XTILECFG_state (1u << 17) #define bit_XTILEDATA_state (1u << 18) +#define bit_APX_state (1u << 19) enum cpu_features_kind { diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c index 1bd7e0be53..b27fa7324a 100644 --- a/sysdeps/x86/tst-get-cpu-features.c +++ b/sysdeps/x86/tst-get-cpu-features.c @@ -219,6 +219,7 @@ do_test (void) CHECK_CPU_FEATURE_PRESENT (AVX_NE_CONVERT); CHECK_CPU_FEATURE_PRESENT (AMX_COMPLEX); CHECK_CPU_FEATURE_PRESENT (PREFETCHI); + CHECK_CPU_FEATURE_PRESENT (APX_F); CHECK_CPU_FEATURE_PRESENT (AESKLE); CHECK_CPU_FEATURE_PRESENT (WIDE_KL); CHECK_CPU_FEATURE_PRESENT (PTWRITE); @@ -390,6 +391,7 @@ do_test (void) CHECK_CPU_FEATURE_ACTIVE (AVX_NE_CONVERT); CHECK_CPU_FEATURE_ACTIVE (AMX_COMPLEX); CHECK_CPU_FEATURE_ACTIVE (PREFETCHI); + CHECK_CPU_FEATURE_ACTIVE (APX_F); CHECK_CPU_FEATURE_ACTIVE (AESKLE); CHECK_CPU_FEATURE_ACTIVE (WIDE_KL); CHECK_CPU_FEATURE_ACTIVE (PTWRITE);