From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id EA4922EC08B for ; Thu, 4 Sep 2025 11:07:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756984029; cv=none; b=sMlUIVjP26dwgXv8L0lBHwc+YH+xXPQGgi3lIsD2NjcOwKO6gN+6jUfQ5117c2YdLdSm5REhiO6Kc0r9jI2eLQKWJe5Z+Iq6mhEz7LMoN6L+BXdX/O0ZMRsOa9TDNB2FGYYwdoRrprRM8UJpMyCuwVBALf3tewvPpt3IlkNdi08= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756984029; c=relaxed/simple; bh=MWlqjpV2qVKmTm0NVzJ05O4+p98eyvHw2JmOhER1CWI=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=UFDfWSqOnr3sZp1aLTXjjtpHQXeNDWNvBy9f2+qyRDyVeLv+Gso1ou/OaKSSO17QXmGnPR7Ty9IAdFkAWH4mtIuknLR/Vnypj42ybaW6QiALOIzK+rPdTttAX+qxY3Sc8TlN47+Bh8oIzrQvoomFjevDQU+4CHkpU7DpcWHpAs8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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 E6A4D1756; Thu, 4 Sep 2025 04:06:58 -0700 (PDT) Received: from [10.1.37.179] (XHFQ2J9959.cambridge.arm.com [10.1.37.179]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 754B23F6A8; Thu, 4 Sep 2025 04:07:05 -0700 (PDT) Message-ID: Date: Thu, 4 Sep 2025 12:07:04 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 2/6] arm64: cpufeature: add AmpereOne to BBML2 allow list Content-Language: en-GB To: Yang Shi , Catalin Marinas , Will Deacon , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , Ard Biesheuvel , Dev Jain , scott@os.amperecomputing.com, cl@gentwo.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <20250829115250.2395585-1-ryan.roberts@arm.com> <20250829115250.2395585-3-ryan.roberts@arm.com> From: Ryan Roberts In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 29/08/2025 23:08, Yang Shi wrote: > > > On 8/29/25 4:52 AM, Ryan Roberts wrote: >> From: Yang Shi >> >> AmpereOne supports BBML2 without conflict abort, add to the allow list. >> >> Signed-off-by: Yang Shi >> Reviewed-by: Christoph Lameter (Ampere) >> Reviewed-by: Ryan Roberts > > I saw Catalin gave Reviewed-by to v6 of this patch, I think we can keep it. Sorry I missed that. I see Catalin and Rb'ed again. > > 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 9ad065f15f1d..b93f4ee57176 100644 >> --- a/arch/arm64/kernel/cpufeature.c >> +++ b/arch/arm64/kernel/cpufeature.c >> @@ -2234,6 +2234,8 @@ static bool has_bbml2_noabort(const struct >> arm64_cpu_capabilities *caps, int sco >>       static const struct midr_range supports_bbml2_noabort_list[] = { >>           MIDR_REV_RANGE(MIDR_CORTEX_X4, 0, 3, 0xf), >>           MIDR_REV_RANGE(MIDR_NEOVERSE_V3, 0, 2, 0xf), >> +        MIDR_ALL_VERSIONS(MIDR_AMPERE1), >> +        MIDR_ALL_VERSIONS(MIDR_AMPERE1A), >>           {} >>       }; >>   >