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 F2E6AC369D1 for ; Thu, 24 Apr 2025 11:25:10 +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=hdkOb1u6SKbn2gaJXEDTdzG7KsYlIXTHUx1hrfh1asA=; b=nI/3PPoKIjO9YBnKeopKKatG13 aKREvDfe41O/LJr8TA7fOufy0DLuV9r2UHdQKPI544/dsSyzjG97w1nDIvTo5diPU18mBXBbmpnss V3ogrEWb+VclyDT9lAMnEvw4ZDhesJDDnyQHBmtXiRGRP58okvVxfsPoGVOO9/UdCRbIZgZCKRBL6 xXhJtIwsLy8O04YKzA7G0RC+UtaW4jt71B2t3MrqVqlrNXDf5dGGYwCaVIJIolXGU0Vp/qI2PmXa0 gow7A2TaEC0Lr/LR+McuWdp2OjW1wmZNXwWqxMUpEA+oV5Huc6xtyjpHn0i4h2r2/BDHwZBMTI9Qx m0w5H3nQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u7uhP-0000000DqXx-3tQY; Thu, 24 Apr 2025 11:24:59 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u7tel-0000000DeEU-3bG7 for linux-arm-kernel@lists.infradead.org; Thu, 24 Apr 2025 10:18:13 +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 5D0531063; Thu, 24 Apr 2025 03:18:04 -0700 (PDT) Received: from J2N7QTR9R3 (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id ED32D3F66E; Thu, 24 Apr 2025 03:18:07 -0700 (PDT) Date: Thu, 24 Apr 2025 11:18:03 +0100 From: Mark Rutland To: linux-arm-kernel@lists.infradead.org, Catalin Marinas , Will Deacon Cc: broonie@kernel.org, daniel.kiss@arm.com, maz@kernel.org, richard.sandiford@arm.com, sander.desmalen@arm.com, tamas.petz@arm.com, yury.khrustalev@arm.com Subject: Re: [PATCH] arm64/fpsimd: signal: Clear TPIDR2 when delivering signals Message-ID: References: <20250417190113.3778111-1-mark.rutland@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250417190113.3778111-1-mark.rutland@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250424_031811_941956_74AB7BBC X-CRM114-Status: UNSURE ( 9.24 ) X-CRM114-Notice: Please train this message. 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 On Thu, Apr 17, 2025 at 08:01:13PM +0100, Mark Rutland wrote: > Hi Catalin, Will, > > This patch fixes a pretty nasty ABI issue with SME. As noted below, Arm > folk are working on updates to the relevant ABI specifications and > libraries. > Folk on CC are working on fixes for the remaining userspace issues, > including updates/fixes to the AAPCS64 specification and glibc. For reference, Richard Sandiford has posted the proposed AAPCS64 updates: https://github.com/ARM-software/abi-aa/pull/325 Mark.