From nobody Sun May 10 09:55:34 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC90BC433EF for ; Mon, 9 May 2022 13:41:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236217AbiEINpM (ORCPT ); Mon, 9 May 2022 09:45:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236246AbiEINoy (ORCPT ); Mon, 9 May 2022 09:44:54 -0400 Received: from laurent.telenet-ops.be (laurent.telenet-ops.be [IPv6:2a02:1800:110:4::f00:19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02FEC2670A8 for ; Mon, 9 May 2022 06:40:33 -0700 (PDT) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed40:8886:2b92:63eb:2922]) by laurent.telenet-ops.be with bizsmtp id UdgX2700W0moLbn01dgX70; Mon, 09 May 2022 15:40:32 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1no3cl-003XlI-El; Mon, 09 May 2022 15:40:31 +0200 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1no3ck-003LGQ-TH; Mon, 09 May 2022 15:40:30 +0200 From: Geert Uytterhoeven To: Catalin Marinas , Will Deacon , Mark Brown Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH] arm64: ARM Scalable Matrix Extension is ARMv9-A Date: Mon, 9 May 2022 15:40:30 +0200 Message-Id: X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The help text for the config option to enable support for the ARM Scalable Matrix Extension does not mention the specification baseline for this extension. Make it clear this is an extension for the ARMv9-A architecture, so users know when it is safe to disable this option, which is enabled by default. Fixes: a1f4ccd25cc25625 ("arm64/sme: Provide Kconfig for SME") Signed-off-by: Geert Uytterhoeven --- arch/arm64/Kconfig | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 0e9bbeb1262d0ca8..f3a0d0cff3fb5265 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1964,9 +1964,9 @@ config ARM64_SME default y depends on ARM64_SVE help - The Scalable Matrix Extension (SME) is an extension to the AArch64 - execution state which utilises a substantial subset of the SVE - instruction set, together with the addition of new architectural + The Scalable Matrix Extension (SME) is an ARMv9-A extension to the + AArch64 execution state which utilises a substantial subset of the + SVE instruction set, together with the addition of new architectural register state capable of holding two dimensional matrix tiles to enable various matrix operations. =20 --=20 2.25.1