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 6C875C43458 for ; Fri, 3 Jul 2026 03:03:26 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=9KIw1JGQpC7MaKU2LH1yR3Wzmy24qmeDvk0zXFo5SAw=; b=c5eoPoyV8eVknp1twhnDqDDc/0 xiDm8Glr9s3QLNngByULCcql7aCgPCWRhgIYM/edGrjvAaQIaRo0r+Eveia8pg0Fa1LR3aTf42/an fpPDe+J8by6SXjfpShP6isomO+6kvzIuC9iRNUcITRc5WFZGO2FgyeYGXD4kPFfLHR+WfAjKtDOB3 s6Ti9QwgoWCT7ZbM4jG4IfYpRHM/8RD23I3Oohk1oPpt38jkjBk82BKYVHqkDbZD2leazKCbQrrD0 7W8G046sXekBq88kjxT1ouOlxC/QwzL1Qc2WMNW9zhdykvy+89dGirAW2IicA6ODrF41qrQxCUgFF G9pQXuFw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfUBT-00000005ut8-0yp3; Fri, 03 Jul 2026 03:03:19 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfUBR-00000005urx-05xZ for linux-arm-kernel@lists.infradead.org; Fri, 03 Jul 2026 03:03:18 +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 E48C422D7; Thu, 2 Jul 2026 20:03:08 -0700 (PDT) Received: from localhost (a079125.arm.com [10.164.21.37]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 8940F3F673; Thu, 2 Jul 2026 20:03:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1783047793; bh=efnEm+W+VtLCuut/dmb71mCG6+tWP/oTrs9sNNtx4cg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=UjTLuIAsvwzssMNef6cyBWug9GJal49GKFuVcxgfGednLxs1e+gG5uETzE3UevRJG +DU0XyVSa1Y29wcDwIHFWKVxrh9p0lS7vbrWqvRJAhxj+yHlqn6/wCF3Yhl4+tD/hu HRSfa/o/e0pTJRrtWJ6Pfl//U2V5lTpdxvcE809k= Date: Fri, 3 Jul 2026 08:33:09 +0530 From: Linu Cherian To: Mark Rutland Cc: Catalin Marinas , Will Deacon , Ryan Roberts , Kevin Brodsky , Anshuman Khandual , Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 5/5] arm64: cpufeature: Extend bbml3 support list Message-ID: References: <20260701094131.677636-1-linu.cherian@arm.com> <20260701094131.677636-6-linu.cherian@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260702_200317_294629_5EAE0017 X-CRM114-Status: GOOD ( 14.10 ) 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 Hi Mark, On Thu, Jul 02, 2026 at 11:47:04AM +0100, Mark Rutland wrote: > On Wed, Jul 01, 2026 at 03:11:31PM +0530, Linu Cherian wrote: > > Add below cpus to the midr list, which supports > > BBML3 but don't advertise through MMFR2 ID. > > > > Cortex A520(AE) > > Cortex A715 > > Cortex A720(AE) > > Cortex A725 > > Neoverse N3 > > C1-Nano > > C1-Pro > > C1-Ultra > > C1-Premium > > > > Signed-off-by: Linu Cherian > > --- > > arch/arm64/kernel/cpufeature.c | 9 +++++++++ > > 1 file changed, 9 insertions(+) > > > > diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c > > index d754b1b7da77..9b806c1c60aa 100644 > > --- a/arch/arm64/kernel/cpufeature.c > > +++ b/arch/arm64/kernel/cpufeature.c > > @@ -2142,6 +2142,15 @@ bool cpu_supports_bbml3(void) > > MIDR_ALL_VERSIONS(MIDR_NVIDIA_OLYMPUS), > > MIDR_ALL_VERSIONS(MIDR_AMPERE1), > > MIDR_ALL_VERSIONS(MIDR_AMPERE1A), > > + MIDR_ALL_VERSIONS(MIDR_CORTEX_A520AE), > > + MIDR_ALL_VERSIONS(MIDR_CORTEX_A715), > > + MIDR_ALL_VERSIONS(MIDR_CORTEX_A720AE), > > + MIDR_ALL_VERSIONS(MIDR_CORTEX_A725), > > + MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N3), > > + MIDR_ALL_VERSIONS(MIDR_C1_NANO), > > + MIDR_ALL_VERSIONS(MIDR_C1_PRO), > > + MIDR_REV_RANGE(MIDR_C1_ULTRA, 1, 1, 0xf), > > + MIDR_REV_RANGE(MIDR_C1_PREMIUM, 1, 1, 0xf), > > Why do these two have a range? The commit message didn't mention this. C1 ultra and C1 Premium has BBM related errata until r1p0. Will mention that in commit message. Thanks, Linu Cherian.