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=-8.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 1BDFEC4332E for ; Fri, 20 Mar 2020 18:02:24 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id CDFD820739 for ; Fri, 20 Mar 2020 18:02:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="OwP+gjS/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CDFD820739 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=l15AAAP4mMEu4kT7vqoPjRuXObxHQV2Hz6NxmP1O/dQ=; b=OwP+gjS/mGtb0J7+5vLHKLy4N hIkEKaDf9/FipzDtXtaKSt8u+ipDu3VCUdAFbqlN1gChxaarVqpfneGc8tDtDUQhA9Z9rP4JQ+skx SakvGGhordrDXQ2TwZyPk2TyNIHCBIJkWcDV7DUc8ShwRMseSFRcCSneHD5X/HRWPvqqiTSqXAsnp 3OkVocyZ5V66AUuguO6CQNlh+LaPgDRy6iMllV3zg44N3ag0/PyKO4T6YZ/GcOWQ5foOOtWFLlGf6 TZquYbgDxU8cPqsuBX1C7dV92N4PkRu2ZD3JBlLM3QDM+TerQBzjQrjPyKHrXjCQajYDZuYRqlq9B dWgOBSM5w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jFLyR-0005TY-B4; Fri, 20 Mar 2020 18:02:23 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jFLyO-0005Sj-6k for linux-arm-kernel@lists.infradead.org; Fri, 20 Mar 2020 18:02:21 +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 1BC5C1FB; Fri, 20 Mar 2020 11:02:19 -0700 (PDT) Received: from [10.37.12.158] (unknown [10.37.12.158]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A11EF3F305; Fri, 20 Mar 2020 11:02:17 -0700 (PDT) Subject: Re: [PATCH 2/6] arm64/cpufeature: Add DIT and CSV2 feature bits in ID_PFR0 register To: anshuman.khandual@arm.com, linux-arm-kernel@lists.infradead.org References: <1580215149-21492-1-git-send-email-anshuman.khandual@arm.com> <1580215149-21492-3-git-send-email-anshuman.khandual@arm.com> From: Suzuki K Poulose Message-ID: Date: Fri, 20 Mar 2020 18:07:01 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <1580215149-21492-3-git-send-email-anshuman.khandual@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200320_110220_291679_5BD71305 X-CRM114-Status: GOOD ( 15.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, catalin.marinas@arm.com, will@kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Cc: Mark Rutland On 01/28/2020 12:39 PM, Anshuman Khandual wrote: > Enable DIT and CSV2 feature bits in ID_PFR0 register as per ARM DDI 0487E.a > specification. Except RAS and AMU, all other feature bits are now enabled. > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Suzuki K Poulose > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Anshuman Khandual Reviewed-by: Suzuki K Poulose > --- > arch/arm64/include/asm/sysreg.h | 3 +++ > arch/arm64/kernel/cpufeature.c | 2 ++ > 2 files changed, 5 insertions(+) > > diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h > index 054aab7ebf1b..469d61c8fabf 100644 > --- a/arch/arm64/include/asm/sysreg.h > +++ b/arch/arm64/include/asm/sysreg.h > @@ -718,6 +718,9 @@ > #define ID_ISAR6_DP_SHIFT 4 > #define ID_ISAR6_JSCVT_SHIFT 0 > > +#define ID_PFR0_DIT_SHIFT 24 > +#define ID_PFR0_CSV2_SHIFT 16 > + > #define ID_PFR2_SSBS_SHIFT 4 > #define ID_PFR2_CSV3_SHIFT 0 > > diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c > index c1e837fc8f97..9e4dab15c608 100644 > --- a/arch/arm64/kernel/cpufeature.c > +++ b/arch/arm64/kernel/cpufeature.c > @@ -341,6 +341,8 @@ static const struct arm64_ftr_bits ftr_id_isar6[] = { > }; > > static const struct arm64_ftr_bits ftr_id_pfr0[] = { > + ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_PFR0_DIT_SHIFT, 4, 0), > + ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_PFR0_CSV2_SHIFT, 4, 0), > ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 12, 4, 0), /* State3 */ > ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 8, 4, 0), /* State2 */ > ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 4, 4, 0), /* State1 */ > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel