From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA190C43331 for ; Thu, 26 Mar 2020 08:03:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A2B4E20719 for ; Thu, 26 Mar 2020 08:03:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585209839; bh=mpkXm26SQEoTzZw6g3mgFIt2SYZiEqigpKUrXiXnX+E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=RpsvhSbf0/i07Ea76/W31NJltUlQ+pwrKQrMxSWbGaJ4xnN+/UAvYcBltUTdyo7Li puBNIC/yzgr4TrnVhW7Y9yMC+2kvVtpuEssDaMnCKUp/y9qFIadSuOAF7LUJAgnfgq ZO+kxX7PC6syFK9GIHYHOSxv89b2C0K6HLjF3tgk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727848AbgCZID6 (ORCPT ); Thu, 26 Mar 2020 04:03:58 -0400 Received: from conuserg-11.nifty.com ([210.131.2.78]:18758 "EHLO conuserg-11.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727773AbgCZIDy (ORCPT ); Thu, 26 Mar 2020 04:03:54 -0400 Received: from pug.e01.socionext.com (p14092-ipngnfx01kyoto.kyoto.ocn.ne.jp [153.142.97.92]) (authenticated) by conuserg-11.nifty.com with ESMTP id 02Q81Wpe002183; Thu, 26 Mar 2020 17:01:51 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-11.nifty.com 02Q81Wpe002183 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1585209712; bh=oRNT1Ac+rpRmk/HlvvcnBgH0h0mqbrwsbOfQN7oSRkw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y2NGdCpo6gDJztVAkZGJ9cgEmssJ+tinKKn97BUhZrrhXEo8dUDoNARtU5UnxZd4t IAMPQ0rGs+PS9DaKiD0RGFaDW2Mbw7zxRZLxHqTvSymi48n1RthpTYBn/Y/Tst7j1p k5tRovloRn7OcxEScSNd0KU9pU4U/d10ltFBwiD0Zw6vBvUVDKpV6KJWrTkcemn7QM YNRGC1eFwSdSckVMXgJDLWGQQz3/TV9V//WSdL+9tGa/dS//spKrJWypLfjY2JxKBq +lrb1qLCVcBpVKq9INH7A8C5l8mCG3LM8JyWi7MUE8jT5wIkyhLiM5+6CORQ3yskz+ NusKN/QEmPTdQ== X-Nifty-SrcIP: [153.142.97.92] From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: Thomas Gleixner , Nick Desaulniers , Borislav Petkov , Peter Zijlstra , "H . Peter Anvin" , x86@kernel.org, "Jason A . Donenfeld" , clang-built-linux@googlegroups.com, Masahiro Yamada , Ingo Molnar , linux-kernel@vger.kernel.org Subject: [PATCH v2 11/16] x86: add comments about the binutils version to support code in as-instr Date: Thu, 26 Mar 2020 17:00:59 +0900 Message-Id: <20200326080104.27286-12-masahiroy@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200326080104.27286-1-masahiroy@kernel.org> References: <20200326080104.27286-1-masahiroy@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We raise the minimal supported binutils version from time to time. The last bump was commit 1fb12b35e5ff ("kbuild: Raise the minimum required binutils version to 2.21"). We need to keep these as-instr checks because binutils 2.21 does not support them. I hope this will be a good hint which one can be dropped when we bump the minimal binutils version next time. As for the Clang/LLVM builds, we require very new LLVM version, so the LLVM integrated assembler supports all of them. Signed-off-by: Masahiro Yamada Acked-by: Jason A. Donenfeld --- Changes in v2: - Change the patch order and rebase arch/x86/Kconfig.assembler | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/x86/Kconfig.assembler b/arch/x86/Kconfig.assembler index 91230bf11a14..a5a1d2766b3a 100644 --- a/arch/x86/Kconfig.assembler +++ b/arch/x86/Kconfig.assembler @@ -3,15 +3,25 @@ config AS_AVX2 def_bool $(as-instr,vpbroadcastb %xmm0$(comma)%ymm1) + help + Supported by binutils >= 2.22 and LLVM integrated assembler config AS_AVX512 def_bool $(as-instr,vpmovm2b %k1$(comma)%zmm5) + help + Supported by binutils >= 2.25 and LLVM integrated assembler config AS_SHA1_NI def_bool $(as-instr,sha1msg1 %xmm0$(comma)%xmm1) + help + Supported by binutils >= 2.24 and LLVM integrated assembler config AS_SHA256_NI def_bool $(as-instr,sha256msg1 %xmm0$(comma)%xmm1) + help + Supported by binutils >= 2.24 and LLVM integrated assembler config AS_ADX def_bool $(as-instr,adox %eax$(comma)%eax) + help + Supported by binutils >= 2.23 and LLVM integrated assembler -- 2.17.1