From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7C2A81AF0BB; Mon, 2 Mar 2026 22:59:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772492375; cv=none; b=mSw4l9pNvOlfObchjrjB6QHk+t0vCTY22/FnDbfRh7YEzojGD9eJ2KT2yxSyZ/PtjzOjs5YRBegRdTrrBoR3/2gByEsQOcbKi2nkYRMA00a23F/MeY7/tUFuXSVyS3dDSlkbdR25pM1/IYTrGGv8HyKdhi4dyvsiHMTvF0PY+Lo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772492375; c=relaxed/simple; bh=FaUBvjel+m4F6ioncCKqn+oV12A2Ri4kSItagqz6d+s=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=bEa3ZgL6kxAC29Eyk00tzsjpDoLhA6R3+oM2SoBDy99MJS+PXzx049fUaO9WaSn/tiIWidLJBxIXHfh1bClHxCdnDtr8JJMqob6IhkzSXGY1Nj+jdfHdnvPpebECcJv4AgQBXNIEvtg8jflJsxO8CwBviMDF+iMoAXVhd9bYRqk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hX8K38/Y; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hX8K38/Y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7C9B8C19423; Mon, 2 Mar 2026 22:59:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772492375; bh=FaUBvjel+m4F6ioncCKqn+oV12A2Ri4kSItagqz6d+s=; h=From:Subject:Date:To:Cc:From; b=hX8K38/YihbQUTenWnyulCNOsMi8mpp1rKjo5y7TcoDlMjVFQbYlXfDrnZjLUjhIV bLhdRSeE9YbBJa8rMPfzwTs7h+jGOUJMdmNVCSFXyFmyrpGkzBEd4gkAfVhAxYo2E+ XSVXXtzU5Wme2ETMx66S9V6ksdBQ2WPo+LvitF3FirkR100c0m6wPWzdjbDbI5W5A+ 5Gs0LmqErjvVSLoktXCNtjk+TLRYGRiPqEFfVzsJ++7bOnRVV28cJ9bwOyPQIm08rd fkiuDxbNMQK3rlW26wi1WplGwxGf9TUxZAHOF2rHT333hDRJi9Tu7+8jyldI2j284D 6hGcWq0aG9YTQ== From: Mark Brown Subject: [PATCH 0/8] arm64: Implement support for 2025 dpISA extensions Date: Mon, 02 Mar 2026 22:53:15 +0000 Message-Id: <20260302-arm64-dpisa-2025-v1-0-0855e7f41689@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIANsUpmkC/yXM0QqCQBCF4VeRuW5gNZugV4kupt2TTpDJjkogv rtbXX4Hzr+SIxucLtVKGYu5vYeC+lBR7HXowJaKqQmNhDoIa35Jy2k0Vy7jiZPI+agQjQCV25j xsM8veb397fP9iTh9O7RtO2/cHQF0AAAA X-Change-ID: 20260106-arm64-dpisa-2025-d6673ae6acee To: Catalin Marinas , Will Deacon , Jonathan Corbet , Shuah Khan Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, Mark Brown X-Mailer: b4 0.15-dev-38bf1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1868; i=broonie@kernel.org; h=from:subject:message-id; bh=FaUBvjel+m4F6ioncCKqn+oV12A2Ri4kSItagqz6d+s=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBpphZOvvoPDojwyp5nvchJkIbV5mZAOyGT+z9jc S0UvmvwFgmJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCaaYWTgAKCRAk1otyXVSH 0Oo9B/0QunqIb3ShHSa1I9yzEf/odlNOvTyIk7IcSk/6WExkdH455L8Nmu9qNPOLNQM5KdKSzFA opePWiQ5olY1MXC1qCkUwuYs/aZtTNA1HaeBaK1xEndW/tSfMo4hAEeyENVKcu96aVg6uZSbuOe 5nPa1W6vArNG4D0own4pStA0SURH/miR4bRjNO87I8e+jWD00u0zIHUQz9tUfSeBC3a1m7ARkoY i1Qrh44LHcY9nhPe1jXog8FFw4fVr9NyfQRwnByWiQq3fj25QC6w7i5A9PeaokYhQXhQqDivU0p 0BP8UF1Fnm64gTnvMKm5OKfBxGfftsWovR8TwCrU3o5uMFYr X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB The 2025 dpISA extensions introduce a number of architecture features all of which are fairly straightforward from a kernel point of view since they only introduce new instructions, not any architecture state. All the relevant newly added ID registers are already exported by KVM, all non-RES0 bits in ID_AA64ZFR0_EL1 and ID_AA64FPFR0_EL1 are writable and the updates to ID_AA64ISARx_EL1 are all additional values in already exported bitfields. Signed-off-by: Mark Brown --- Mark Brown (8): arm64/hwcap: Generate the KERNEL_HWCAP_ definitions for the hwcaps arm64/sysreg: Update ID_AA64ISAR0_EL1 description to DDI0601 2025-12 arm64/sysreg: Update ID_AA64ISAR2_EL1 description to DDI0601 2025-12 arm64/sysreg: Update ID_AA64FPFR0_EL1 description to DDI0601 2025-12 arm64/sysreg: Update ID_AA64ZFR0_EL1 description to DDI0601 2025-12 arm64/sysreg: Update ID_AA64SMFR0_EL1 description to DDI0601 2025-12 arm64/cpufeature: Define hwcaps for 2025 dpISA features kselftest/arm64: Add 2025 dpISA coverage to hwcaps Documentation/arch/arm64/elf_hwcaps.rst | 24 ++++++ arch/arm64/include/asm/hwcap.h | 120 +----------------------------- arch/arm64/include/uapi/asm/hwcap.h | 8 ++ arch/arm64/kernel/cpufeature.c | 11 +++ arch/arm64/kernel/cpuinfo.c | 8 ++ arch/arm64/tools/Makefile | 8 +- arch/arm64/tools/gen-kernel-hwcaps.sh | 23 ++++++ arch/arm64/tools/sysreg | 20 ++++- tools/testing/selftests/arm64/abi/hwcap.c | 116 +++++++++++++++++++++++++++++ 9 files changed, 217 insertions(+), 121 deletions(-) --- base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f change-id: 20260106-arm64-dpisa-2025-d6673ae6acee Best regards, -- Mark Brown