From patchwork Sat Mar 29 03:44:07 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yicong Yang X-Patchwork-Id: 14032568 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 A5B1DC28B20 for ; Sat, 29 Mar 2025 03:46:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=tAHH9KrMEobkIlXW9ZawD+0mGx69oP+FIw5ULlaz1RU=; b=e2pXigIUfYZsvSYQ3vlPEY3Foh 7NEGGkjlHrb+9ngvpJIIacrSnQWhcJFQjzcFd96YcUSKvEQf78P9lf7+yXzl+EiYs3O8K6Y1XgE2/ xSG4UOcOIFZHitSD4GDAB8ZKGKbDlj14Xtyu9uT0ALyS3udVXwh5djt2AeEPFGqf99rvSh/OWgtW2 2w4ZPST8mXmKDwQ1AjyvOwSMoQrA3oEwAZhpLhZ7SSPnF7v9ejd8XkGaY6jlmsjh2lcAoXyH5aILZ MHBeJ45Phh4X1u93m6XUt9cB/xS9WSrJC8rQo7THRpDbjJ4PXcSszKuCtUWxDAwXYOkMR2T5v2K9i +U3hHLBw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.1 #2 (Red Hat Linux)) id 1tyN8r-0000000Eez2-2JGU; Sat, 29 Mar 2025 03:45:53 +0000 Received: from szxga05-in.huawei.com ([45.249.212.191]) by bombadil.infradead.org with esmtps (Exim 4.98.1 #2 (Red Hat Linux)) id 1tyN76-0000000Eeuv-3SqS for linux-arm-kernel@lists.infradead.org; Sat, 29 Mar 2025 03:44:06 +0000 Received: from mail.maildlp.com (unknown [172.19.162.112]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4ZPjmw5W58z1jBWW; Sat, 29 Mar 2025 11:39:12 +0800 (CST) Received: from kwepemd200014.china.huawei.com (unknown [7.221.188.8]) by mail.maildlp.com (Postfix) with ESMTPS id 7528A14013B; Sat, 29 Mar 2025 11:43:55 +0800 (CST) Received: from localhost.localdomain (10.50.165.33) by kwepemd200014.china.huawei.com (7.221.188.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.10; Sat, 29 Mar 2025 11:43:54 +0800 From: Yicong Yang To: , , , , , CC: , , , , , , , Subject: [PATCH 1/3] arm64/cpufeature: Add missing id_aa64mmfr4 feature reg update Date: Sat, 29 Mar 2025 11:44:07 +0800 Message-ID: <20250329034409.21354-2-yangyicong@huawei.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20250329034409.21354-1-yangyicong@huawei.com> References: <20250329034409.21354-1-yangyicong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.50.165.33] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemd200014.china.huawei.com (7.221.188.8) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250328_204405_046617_6D1C77A0 X-CRM114-Status: UNSURE ( 8.15 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Yicong Yang Add missing id_aa64mmfr4 feature register check and update in update_cpu_features(). Update the taint status as well. Signed-off-by: Yicong Yang --- arch/arm64/kernel/cpufeature.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 9c4d6d552b25..75ef319c1ef8 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -1403,6 +1403,8 @@ void update_cpu_features(int cpu, info->reg_id_aa64mmfr2, boot->reg_id_aa64mmfr2); taint |= check_update_ftr_reg(SYS_ID_AA64MMFR3_EL1, cpu, info->reg_id_aa64mmfr3, boot->reg_id_aa64mmfr3); + taint |= check_update_ftr_reg(SYS_ID_AA64MMFR4_EL1, cpu, + info->reg_id_aa64mmfr4, boot->reg_id_aa64mmfr4); taint |= check_update_ftr_reg(SYS_ID_AA64PFR0_EL1, cpu, info->reg_id_aa64pfr0, boot->reg_id_aa64pfr0);