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(localhost [IPv6:::1]) by gnu-cfl-3.localdomain (Postfix) with ESMTP id 8879D7400A4 for ; Wed, 5 Apr 2023 09:21:44 -0700 (PDT) From: "H.J. Lu" To: libc-alpha@sourceware.org Subject: [PATCH 03/19] : Add LA57 support Date: Wed, 5 Apr 2023 09:21:28 -0700 Message-Id: <20230405162144.984598-4-hjl.tools@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230405162144.984598-1-hjl.tools@gmail.com> References: <20230405162144.984598-1-hjl.tools@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-3025.2 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=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Add 57-bit linear addresses and five-level paging (LA57) support to . --- manual/platform.texi | 3 +++ sysdeps/x86/bits/platform/x86.h | 2 +- sysdeps/x86/tst-get-cpu-features.c | 1 + 3 files changed, 5 insertions(+), 1 deletion(-) diff --git a/manual/platform.texi b/manual/platform.texi index c1cef570d2..9251b63e47 100644 --- a/manual/platform.texi +++ b/manual/platform.texi @@ -394,6 +394,9 @@ the indirect branch predictor barrier (IBPB). @item @code{L1D_FLUSH} -- IA32_FLUSH_CMD MSR. +@item +@code{LA57} -- 57-bit linear addresses and five-level paging. + @item @code{LAHF64_SAHF64} -- LAHF/SAHF available in 64-bit mode. diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h index 1ed24d7024..c9189fa248 100644 --- a/sysdeps/x86/bits/platform/x86.h +++ b/sysdeps/x86/bits/platform/x86.h @@ -182,7 +182,7 @@ enum x86_cpu_INDEX_7_ECX_13 = x86_cpu_index_7_ecx + 13, x86_cpu_AVX512_VPOPCNTDQ = x86_cpu_index_7_ecx + 14, x86_cpu_INDEX_7_ECX_15 = x86_cpu_index_7_ecx + 15, - x86_cpu_INDEX_7_ECX_16 = x86_cpu_index_7_ecx + 16, + x86_cpu_LA57 = x86_cpu_index_7_ecx + 16, /* Note: Bits 17-21: The value of MAWAU used by the BNDLDX and BNDSTX instructions in 64-bit mode. */ x86_cpu_RDPID = x86_cpu_index_7_ecx + 22, diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c index 1954698df8..5f5cd3e448 100644 --- a/sysdeps/x86/tst-get-cpu-features.c +++ b/sysdeps/x86/tst-get-cpu-features.c @@ -144,6 +144,7 @@ do_test (void) CHECK_CPU_FEATURE_PRESENT (AVX512_VNNI); CHECK_CPU_FEATURE_PRESENT (AVX512_BITALG); CHECK_CPU_FEATURE_PRESENT (AVX512_VPOPCNTDQ); + CHECK_CPU_FEATURE_PRESENT (LA57); CHECK_CPU_FEATURE_PRESENT (RDPID); CHECK_CPU_FEATURE_PRESENT (KL); CHECK_CPU_FEATURE_PRESENT (CLDEMOTE); -- 2.39.2