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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D91A2C74A5B for ; Fri, 17 Mar 2023 19:51:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229875AbjCQTvM (ORCPT ); Fri, 17 Mar 2023 15:51:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230045AbjCQTu6 (ORCPT ); Fri, 17 Mar 2023 15:50:58 -0400 Received: from mail-pf1-x44a.google.com (mail-pf1-x44a.google.com [IPv6:2607:f8b0:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1FD904B80A for ; Fri, 17 Mar 2023 12:50:45 -0700 (PDT) Received: by mail-pf1-x44a.google.com with SMTP id s11-20020a056a00194b00b0062586c7a2acso3154925pfk.23 for ; Fri, 17 Mar 2023 12:50:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; t=1679082644; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=Hs46drbFrMe/QjYAPPlOzCkDHxFYlL70DArAIx1RmJc=; b=NbzXEFw7Mlj4bG6afQF+3r0dWbsMFiy0FIWCXmT4PWOrbAaBFs4dSOoiGx4G2/QmUp 6LK+WOIw3Oj3qJ/98P0/CktYE42M0MRV7u0l8S5im0o2dTJpUnAzPoIMnygTlLehC4Og lnaQvmJweJQ0anq79VVIRDTsyAQF+DqCNkcqI7Q7SH9/Kc6a/RikoLzEkebzV5HAwwED 7eQllCYhwnjFI1FAuf8UNhgIYi6aYXzVdiVlyxkBustcQRlId1nEmHxCDqQz5TajuCpv dC6QH/+odHeEsVw2npt9bKOzTsOIRjtqmuprpIHmFltZXuePIr1qxpy1cpnNxg6BYDd8 EfTg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679082644; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Hs46drbFrMe/QjYAPPlOzCkDHxFYlL70DArAIx1RmJc=; b=EFHaFUWUmRKu/ONjhf9DZ+x292EaQs13B5/3LTCYVnMHdQ+0bg2HSHkcxGLOnSUnHX DbmKwddf7KktlrJYfXWqstIVzXUaCPOEqLYSyQO90XS9k9JRJ5q2MHzAgVGYFbvwZbj0 A9qmWxP4zPFKuVJSE/mZ7Irru1f0yWs8/+HpvmK56rhfrL8aVQjaS5Fu2PmLyyhyzmqI NPgybcuYUDX1ihZqpLeQChWg1YpX2TRYAjT2TmlszL0qRI+tgO04Klqg3EZ3OmtCSqn6 wD0+dAVgzAPuRFheeT5ncHD9V22rOxk3VEIdbhxNPlLxwow53eP5BVN7JgSqB87348Nl wv6Q== X-Gm-Message-State: AO0yUKXV3ip7xHUGepE1sayIddT+w8N9dyPdom7w0r3NEH7SH4pCtweo vORJpdN9WfVFiPzwvJZE0pVRSAEL6yHBI3o= X-Google-Smtp-Source: AK7set9trPZL48JvdiXaWxIDMEmwX0ed0iVpM51psO3L38jpxsm3EzslpiM67yKf/3yQSmT+4ZY7JoFNyLb5gsk= X-Received: from zaidcloud.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5325]) (user=zalbassam job=sendgmr) by 2002:a17:902:d50b:b0:19f:1dfc:9fd4 with SMTP id b11-20020a170902d50b00b0019f1dfc9fd4mr3483383plg.1.1679082644710; Fri, 17 Mar 2023 12:50:44 -0700 (PDT) Date: Fri, 17 Mar 2023 15:50:25 -0400 In-Reply-To: <20230317195027.3746949-1-zalbassam@google.com> Mime-Version: 1.0 References: <20230317195027.3746949-1-zalbassam@google.com> X-Mailer: git-send-email 2.40.0.rc2.332.ga46443480c-goog Message-ID: <20230317195027.3746949-7-zalbassam@google.com> Subject: [PATCH v4 6/8] ARM: Make CONFIG_CPU_V7 valid for 32bit ARMv8 implementations From: Zaid Al-Bassam To: Jesus Sanchez-Palencia , Russell King , Catalin Marinas , Will Deacon , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Marc Zyngier , James Morse , Suzuki K Poulose , Oliver Upton , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu, f.fainelli@gmail.com Cc: Marc Zyngier , Zaid Al-Bassam Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marc Zyngier ARMv8 is a superset of ARMv7, and all the ARMv8 features are discoverable with a set of ID registers. It means that we can use CPU_V7 to guard ARMv8 features at compile time. This commit simply amends the CPU_V7 configuration symbol comment to reflect that CPU_V7 also covers ARMv8. Signed-off-by: Marc Zyngier Signed-off-by: Zaid Al-Bassam Signed-off-by: Marc Zyngier --- arch/arm/mm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 8e2d75624f5c..dda78a69efba 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -403,7 +403,7 @@ config CPU_V6K select CPU_THUMB_CAPABLE select CPU_TLB_V6 if MMU -# ARMv7 +# ARMv7 and ARMv8 architectures config CPU_V7 bool select CPU_32v6K -- 2.40.0.rc2.332.ga46443480c-goog 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 68BCCC6FD1D for ; Fri, 17 Mar 2023 20:48:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:From:Subject:Message-ID: References:Mime-Version:In-Reply-To:Date:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=lsH3r5XdeIp+MnX1f50grZ9lXSFaJlRZYGvHgp1O/r8=; b=JukqzfxyufW5CLa4lGznXrR+u+ fJ4DRK4wfAuT9kR8Q5jarcDpn4PzPaVwqZX9MmaLrriUhmZb8oQnqWcLPuLUIBEGD3VUo5f41TC4B rQnjYetDcDPckBxFqgR+TAqXOR+imhfEduK1KUoSFyUbzTibeGTSiWJ/SC2NuzhnCVjgbVZQvCUGT s1TxXF4XjsjU3uBVHcM21WgElOqByq+rLT/FFpYgLsUyk7XHWDgb+dhgELb5c6Ktp644jQR71TJ7h ypefLDZ1YeIRuVVkhnUJLRpEYlsGP1khtGXSy2meP80+CrmDb6g+hyeCjxSEInhgJ09d/Ax/FvOVG 64C4neDA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pdGzf-003LRs-2F; Fri, 17 Mar 2023 20:48:07 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pdGze-003LRY-1I for linux-arm-kernel@bombadil.infradead.org; Fri, 17 Mar 2023 20:48:06 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Type:Cc:To:From:Subject: Message-ID:References:Mime-Version:In-Reply-To:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=Hs46drbFrMe/QjYAPPlOzCkDHxFYlL70DArAIx1RmJc=; b=BsOjPCirBfHNBQYX1f8k7kVsJs ZbyGZA29g/clrDlnn+VIkdrhLszbboZ7v0ygifag/II2Qw2AxoSEaykyy0KPZ4q+1rlpvJuJUue8x yCKDlWdXgcRF5vvd9V30pU84nkRvB4IbfsQJA2IF97VPdt74sL0mvT93J7/XrUdGjXXmd2ZXH3tA/ cPv7sQ5gFR/74zQjqGush3zbCRD0lP4KImoeBa6qjmdrGG5Hu9bz+fF7GJ/9PGyp3PZTa8uckO+vL x4S3IYYM6II8QRXmEnTNw9Het/ka+oLM0i0llKijJdEtPTjY18FfJpLPaPpkcGS7+42htrdbcgcPa qLmA/7gQ==; Received: from mail-pl1-x649.google.com ([2607:f8b0:4864:20::649]) by desiato.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pdG6C-002tPw-37 for linux-arm-kernel@lists.infradead.org; Fri, 17 Mar 2023 19:50:51 +0000 Received: by mail-pl1-x649.google.com with SMTP id u4-20020a170902bf4400b0019e30a57694so3272170pls.20 for ; Fri, 17 Mar 2023 12:50:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; t=1679082644; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=Hs46drbFrMe/QjYAPPlOzCkDHxFYlL70DArAIx1RmJc=; b=NbzXEFw7Mlj4bG6afQF+3r0dWbsMFiy0FIWCXmT4PWOrbAaBFs4dSOoiGx4G2/QmUp 6LK+WOIw3Oj3qJ/98P0/CktYE42M0MRV7u0l8S5im0o2dTJpUnAzPoIMnygTlLehC4Og lnaQvmJweJQ0anq79VVIRDTsyAQF+DqCNkcqI7Q7SH9/Kc6a/RikoLzEkebzV5HAwwED 7eQllCYhwnjFI1FAuf8UNhgIYi6aYXzVdiVlyxkBustcQRlId1nEmHxCDqQz5TajuCpv dC6QH/+odHeEsVw2npt9bKOzTsOIRjtqmuprpIHmFltZXuePIr1qxpy1cpnNxg6BYDd8 EfTg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679082644; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Hs46drbFrMe/QjYAPPlOzCkDHxFYlL70DArAIx1RmJc=; b=m6zpryCC5rIb76H0W2xBn8wPNlDq6r5Xqm4xtWfSlgT26MPRRbqpw0FFAY/ujGVelj h4ymOKEoBUrx/jb6qThs5ET90iYHCFnQ8TqUpT1CiyHYQoXJ0ZesZjwRiSmKlFQht1Qk N3WTy7xBM0BvX3QzMEzrOywk/G+0YfVrtybtRlmVytvkWb+pkP10wH2v+tnmdx8lQUhY dCAScTuvqhZocIaX2Dk+ORRpRxLHOpDv/yXfk+h7puvN5ZlJogKY6ATxwr9jgRcm/VyN ra4/NtVZgq091enjmEs4jRyhy71epOtTbpKYNXvV3VEfshkbKJuv0SwwMjbUJLFtvZW+ gXGA== X-Gm-Message-State: AO0yUKXEHS+TIYW0y0oReNT2RzRmbWn/OU7XUAOSq4Vc+ySDhkCjY2vY nU4KzpBxH0iGzMa/sVhEo6IwuzqKItlAr2c= X-Google-Smtp-Source: AK7set9trPZL48JvdiXaWxIDMEmwX0ed0iVpM51psO3L38jpxsm3EzslpiM67yKf/3yQSmT+4ZY7JoFNyLb5gsk= X-Received: from zaidcloud.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5325]) (user=zalbassam job=sendgmr) by 2002:a17:902:d50b:b0:19f:1dfc:9fd4 with SMTP id b11-20020a170902d50b00b0019f1dfc9fd4mr3483383plg.1.1679082644710; Fri, 17 Mar 2023 12:50:44 -0700 (PDT) Date: Fri, 17 Mar 2023 15:50:25 -0400 In-Reply-To: <20230317195027.3746949-1-zalbassam@google.com> Mime-Version: 1.0 References: <20230317195027.3746949-1-zalbassam@google.com> X-Mailer: git-send-email 2.40.0.rc2.332.ga46443480c-goog Message-ID: <20230317195027.3746949-7-zalbassam@google.com> Subject: [PATCH v4 6/8] ARM: Make CONFIG_CPU_V7 valid for 32bit ARMv8 implementations From: Zaid Al-Bassam To: Jesus Sanchez-Palencia , Russell King , Catalin Marinas , Will Deacon , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Marc Zyngier , James Morse , Suzuki K Poulose , Oliver Upton , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu, f.fainelli@gmail.com Cc: Marc Zyngier , Zaid Al-Bassam X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230317_195049_048017_8AB73967 X-CRM114-Status: GOOD ( 11.78 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Marc Zyngier ARMv8 is a superset of ARMv7, and all the ARMv8 features are discoverable with a set of ID registers. It means that we can use CPU_V7 to guard ARMv8 features at compile time. This commit simply amends the CPU_V7 configuration symbol comment to reflect that CPU_V7 also covers ARMv8. Signed-off-by: Marc Zyngier Signed-off-by: Zaid Al-Bassam Signed-off-by: Marc Zyngier --- arch/arm/mm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 8e2d75624f5c..dda78a69efba 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -403,7 +403,7 @@ config CPU_V6K select CPU_THUMB_CAPABLE select CPU_TLB_V6 if MMU -# ARMv7 +# ARMv7 and ARMv8 architectures config CPU_V7 bool select CPU_32v6K -- 2.40.0.rc2.332.ga46443480c-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel