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 42C66FA3741 for ; Mon, 31 Oct 2022 20:41:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=QE3D5TeQpP2mdSEzVW0IsmCieNi6IrhNFmm5OVrZhKU=; b=TxnNBmgLMZQ49e zRDbfUlQxju6pDUSRKSTWHDjTzV2nB8IKxUCyp9nf2qk7WtYi30KhoR3ByzMWEqef6+PA2NU77u8S E01eZ5xgTnQt0Nh36E1S3qhknZOpPEqh9medAOG/iOAZ4vaW6TarJhm6X9+vpz2LZpzeQxycdtOUL vVoAVPGbyP/PysaJexpBfr+d61v7MRVGWWpW+q/OM0DoixKAetyisAMqCwNMTCIpq8FEzwfiUIad5 icZ/5ObtNHu8RYv/rrmgY9Ix8tGZeyRRbw3TDUmKopkfRd8lJbMmtFjwR7sSOp4GwC96+TA+unAVr Yql+M4Id9GuSCN2eV/gQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1opba2-00FFyT-Mo; Mon, 31 Oct 2022 20:40:22 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1opbZt-00FFwC-9w for linux-arm-kernel@lists.infradead.org; Mon, 31 Oct 2022 20:40:14 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id EBF26B81A64; Mon, 31 Oct 2022 20:40:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E128FC433C1; Mon, 31 Oct 2022 20:40:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1667248810; bh=eXvVIaK1WoVbEDqH+qHY5uaGzBm7/shnB2HUwNFV4VA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Fh4CYku6nTALLd6CDI801TQ5b8jZtMpKj9PkhPBK8DyG+jaKc9RkqSVEkV/0jRsq1 gHBXFhJPBf7F67CrvoOBWpKpFl7pDNZ/GbF9SeY2bXKXHQFZ96qydlSTErldZY/zLa s0JBrDU9u1CiR6ZzzjDq6Tjb3Od8zbKePMmp3adCxIzUkvzHh4s4DN1tG9hgMuGQ4I wM5nSSy83Ghs1sRF99Epd75AlB8sdx3AbXux0vBi+Meq34RqMUxmmZgt0gg3CIK5O3 7GOAc6y1OCSuXf1VkqmLEoYhmTi/g+x2JgSG7o5tNXq6Eg1UVbYHIiME0Lou3OC46H Ri/rzaw7ILFDA== From: Mark Brown To: Catalin Marinas , Will Deacon , Shuah Khan , Shuah Khan Cc: Szabolcs Nagy , linux-arm-kernel@lists.infradead.org, Mark Brown Subject: [PATCH v2 1/4] arm64/sme: Document ABI for TPIDR2 signal information Date: Mon, 31 Oct 2022 20:17:33 +0000 Message-Id: <20221031201736.894374-2-broonie@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221031201736.894374-1-broonie@kernel.org> References: <20221031201736.894374-1-broonie@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=815; i=broonie@kernel.org; h=from:subject; bh=eXvVIaK1WoVbEDqH+qHY5uaGzBm7/shnB2HUwNFV4VA=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBjYC1dqgZTCEeWJWX9IoHIVjYimCwKi3swBBjCu71s dXnY9xGJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCY2AtXQAKCRAk1otyXVSH0GvuB/ 0Q420CDgvjmvfFnrCNIF4Sovk/LK6aZXYRBNHHoO6XSO2y0hbpt4NzcsJYu6BMQTAjliVp8KZhHpc6 lFr+i/t6DBYrWi6jx+qTd+zRnmV4N7GWhW7GSx//6PRm1e85+tONvwSqX/3d41SP3xQpXQrTn1UlVC 0BVj+0Ckg6MMUd/iiR1ln8cvOliAGXQPGE1/o9DqmMx1OODvVZzvR0nbU0VpzVonD9dvLwOxtAhdyv QHTW2h1KE0W7Ak4XiayOGp43oIho588hCkk4rHrULP6WxsFu9Wwe4YVsj2DRb9WVhEG5YDF8/BJtZu 7v6QrUDQJ1yhI7isNziUQSPQh3y8Li X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221031_134013_515396_0BBF6FD4 X-CRM114-Status: GOOD ( 10.25 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org In order to allow access to TPIDR2 from signal handlers we need to add it to the signal context, document that we are doing so. Signed-off-by: Mark Brown --- Documentation/arm64/sme.rst | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/arm64/sme.rst b/Documentation/arm64/sme.rst index 16d2db4c2e2e..36b08a105dd1 100644 --- a/Documentation/arm64/sme.rst +++ b/Documentation/arm64/sme.rst @@ -111,6 +111,9 @@ be zeroed. * Signal handlers are invoked with streaming mode and ZA disabled. +* A new signal frame record TPIDR2_MAGIC is added formatted as a struct + tpidr2_context to allow access to TPIDR2_EL0 from signal handlers. + * A new signal frame record za_context encodes the ZA register contents on signal delivery. [1] -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel