From patchwork Tue Jul 23 11:06:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 13739917 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 9D003C3DA49 for ; Tue, 23 Jul 2024 11:07:42 +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-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=F/rvgT9Z3u6gcny5+kUuiCzQDFj83djGlUEj9qCTris=; b=XdN1sKMLXtWJjxCcGsJQJM+fNT mN1rh4OQQaDheYofpIBrWyDz0e+H/PoZeeM7lObiMkhq3VdrRJrw4S379D4ebSX0j/dEKwvV+Gk8B QWCWcqTXSlfNgOguzDXxQWucl4NsdYipgzLFa6TvXMShLC2jvmsAqKxbkqw+vmsmsZ5KgG8UidEMz VCrURK/l4+1o4cWlDQzjlYqJq17v+31e3szdJOY78EYTrXDqbi8M9fBuszQtMyn3ibY1JNEhSpuq7 ggBQaDXIiK1pGkp/qEPGqgvvlrBJIj6nT9DlUZQDBfUhUKC/i8louQa/uB2eBuy74+7ombQYrsFAS EcZHe60w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sWDMd-0000000CEGK-0ATe; Tue, 23 Jul 2024 11:07:27 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sWDLu-0000000CE8h-2mV2 for linux-arm-kernel@lists.infradead.org; Tue, 23 Jul 2024 11:06:44 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 80AB7139F; Tue, 23 Jul 2024 04:07:05 -0700 (PDT) Received: from a077893.arm.com (unknown [10.163.54.37]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 664573F73F; Tue, 23 Jul 2024 04:06:38 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: mark.rutland@arm.com, Anshuman Khandual Subject: [boot-wrapper 0/3] aarch64: Enable access for FEAT_D128 registers in EL1/EL2 Date: Tue, 23 Jul 2024 16:36:27 +0530 Message-Id: <20240723110630.483871-1-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240723_040642_760929_C9FC1A3D X-CRM114-Status: UNSURE ( 5.43 ) 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 This series enables access for FEAT_D128 relevant registers in EL1/EL2 via setting respective bits in SCR_EL3, when their corresponding features are detected. -------------------------------------------------------------- | FEAT_D128 | ID_AA64MMFR3_EL1_D128 | SCR_EL3_D128En | | FEAT_SCTLR2 | ID_AA64MMFR3_EL1_SCTLRX | SCR_EL3_SCTLR2En | | FEAT_THE | ID_AA64PFR1_EL1_THE | SCR_EL3_RCWMASKEn | -------------------------------------------------------------- Anshuman Khandual (3): aarch64: Enable access into 128 bit system registers from EL2 and below aarch64: Enable access into SCTLR2_ELx registers from EL2 and below aarch64: Enable access into RCW[S]MASK_EL1 registers from EL2 and below arch/aarch64/include/asm/cpu.h | 8 +++++++- arch/aarch64/init.c | 9 +++++++++ 2 files changed, 16 insertions(+), 1 deletion(-)