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 B2DAEC2BB85 for ; Tue, 14 Apr 2020 21:31:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8EA152074D for ; Tue, 14 Apr 2020 21:31:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586899907; bh=ynVgzLldlXSD7JRhvJ+1I4Gwdp3ixcN/PSct1ncfw5M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=XvUWphctPnuG3Sv0YQ432LsuXbjYuvvBik8DntM9hwoMIJytnEcsYG90RqYWv0/f1 6il4MaLVtmGgqdwDq2JRQM7Y5wiZfraYEQH7Of5rUXUQMNOax3s/+lpny+RiZDj8Ss JKz6VUAaKwSarSbJaGsxh8igRz7fDIJ44TuQxj10= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2633857AbgDNVbn (ORCPT ); Tue, 14 Apr 2020 17:31:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:39922 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729492AbgDNVb1 (ORCPT ); Tue, 14 Apr 2020 17:31:27 -0400 Received: from localhost.localdomain (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7AD952076C; Tue, 14 Apr 2020 21:31:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586899886; bh=ynVgzLldlXSD7JRhvJ+1I4Gwdp3ixcN/PSct1ncfw5M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FYdLeCwqG1TOyCXSCcxsHcQEYajfZyEVr4aWB7AeGeLPI9XZA3qYtxrcjI3+RaeqI ClaK1PJ/ZcI4HuhBAIXg/Kc2JoBlWCVsXtYUg8VtapWVB/kXXbtIixq7W5ivlC1vKJ XSkvS4eXckzpNAb9HsYbNsXD1l+VpE3NsKSu2OII= From: Will Deacon To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu Cc: linux-kernel@vger.kernel.org, Will Deacon , Suzuki K Poulose , Mark Rutland , Marc Zyngier , Anshuman Khandual , Catalin Marinas , Sai Prakash Ranjan , Doug Anderson , kernel-team@android.com Subject: [PATCH 1/8] arm64: cpufeature: Relax check for IESB support Date: Tue, 14 Apr 2020 22:31:07 +0100 Message-Id: <20200414213114.2378-2-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200414213114.2378-1-will@kernel.org> References: <20200414213114.2378-1-will@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sai Prakash Ranjan We don't care if IESB is supported or not as we always set SCTLR_ELx.IESB and, if it works, that's really great. Relax the ID_AA64MMFR2.IESB cpufeature check so that we don't warn and taint if it's mismatched. Signed-off-by: Sai Prakash Ranjan [will: rewrote commit message] Signed-off-by: Will Deacon --- arch/arm64/kernel/cpufeature.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 9fac745aa7bb..63df28e6a425 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -247,7 +247,7 @@ static const struct arm64_ftr_bits ftr_id_aa64mmfr2[] = { ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_FWB_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_AT_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_LVA_SHIFT, 4, 0), - ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_IESB_SHIFT, 4, 0), + ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_IESB_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_LSM_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_UAO_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_CNP_SHIFT, 4, 0), -- 2.26.0.110.g2183baf09c-goog