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 7CB8A34A78F for ; Wed, 8 Jul 2026 14:44:01 +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=1783521843; cv=none; b=CDDysauCtrWySxtRcrf0t0RMsqW/yXGYTfEWVvb7kGSrC5bdN+sQ0Q1/GHWpJvKDnYaLh0sQnMe8bTDbeR93wJnn+Xlp+05ia4E2Y/PPKwLsxOOO4no2Dt9buaD28mEAs7VoceUosmEFDVSELUfsMoiUmky8TLcToDOKEATLB0I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783521843; c=relaxed/simple; bh=PHN32ex2ufL8mW+siWwXKAxwSV8HYJONz7jukXjGBKI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=BEZPQfpNl+7TXBR6MR6oOGAuJvQYGUkrcq4IG4vwWaRx5+C8oGWdsasVkl81UC6Hyw4FAbR0cA4dtTaubat33PSCq3pSNIDEGy1d2vB4LC1uXo6GFN5R2iXdcUR/4cowebL5m9g2FqBDri9QINod+/DI0eb8oer1Z/2od767CsE= 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; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=KIeiA2ZT; 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 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="KIeiA2ZT" 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 A24AC1CDD; Wed, 8 Jul 2026 07:43:56 -0700 (PDT) Received: from a079125.blr.arm.com (a079125.arm.com [10.164.21.43]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 203113F7B4; Wed, 8 Jul 2026 07:43:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1783521840; bh=PHN32ex2ufL8mW+siWwXKAxwSV8HYJONz7jukXjGBKI=; h=From:To:Cc:Subject:Date:From; b=KIeiA2ZTN8KfIxqM14f5juJxThtYcmvICWu/A3cggH0s7uZYmqBVrvZWLmwn5Jebj 39VxVSrEIUdzMQJ7cfXfJ/yOqWV2Y6njS21WRz3NoCa17BrP56pCkyXgRc/NoaoLX8 1HJ4QiQ6Nr1ok+3OwdpgfTVzexqtEVE4g/6mIbYM= From: Linu Cherian To: Catalin Marinas , Will Deacon , Ryan Roberts , Kevin Brodsky , Anshuman Khandual , Suzuki K Poulose , Mark Rutland Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Linu Cherian Subject: [PATCH v2 0/6] Add BBML3 cpu feature Date: Wed, 8 Jul 2026 20:13:25 +0530 Message-ID: <20260708144331.679816-1-linu.cherian@arm.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit - Patches 1, 2 and 3 adds more cpus to the bbml2_noabort support list. bbml2_noabort would eventually gets renamed to bbml3 in a subsequent patch as they are functionally equivalent. - Patches 4, 5 & 6 introduces BBML3 cpu feature Changelog from v1: * Patches associated with adding cpus to BBML2_NOABORT, support list, were kept at bottom in v1 is now moved up in this version, for ease of backporting. * Adding BBM_3 definition in sysreg moved into a separate patch * MMFR2_ID check for BBM_3 has been changed from == BBM_3 to >= BBM_3, so that BBML3 cpu feature gets enabled for BBM_4 as well. * For feature detection, MMFR2_ID check comes first followed by midr check for code readability * Errata details for C1-Ultra and C1-Premium added to commit message Linu Cherian (6): arm64: cputype: Add Cortex-A520AE definitions arm64: cputype: Add C1-Nano definitions arm64: cpufeature: Extend bbml2_noabort support list arm64: sysreg: Add BBM_3 arm64: cpufeature: Add BBML3 arm64: cpufeature: Detect BBML3 based on MMFR2 ID arch/arm64/include/asm/cpufeature.h | 6 ++-- arch/arm64/include/asm/cputype.h | 4 +++ arch/arm64/kernel/cpufeature.c | 54 ++++++++++++++--------------- arch/arm64/mm/contpte.c | 21 +++++------ arch/arm64/mm/mmu.c | 52 +++++++++++++-------------- arch/arm64/mm/proc.S | 4 +-- arch/arm64/tools/cpucaps | 2 +- arch/arm64/tools/sysreg | 1 + 8 files changed, 71 insertions(+), 73 deletions(-) -- 2.43.0