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 E6701ECAAA1 for ; Fri, 28 Oct 2022 18:52:57 +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=ZIZ5s2nHz+Wq9V nEsAx2O5KxQdjRP5MvJPmUgIRdo3ZAABDFK2fjA7hxkFk6Szxd2DadVWjdZb7xk06sJCOAc+lZ6Et Wrkiy6NQ7WpuE1rGf0Z/DSj7sLnWbVA9TFzyOpmaqfulgYcOLB6QI+CbR9jvPuaTbzFJyhCpQ0HRA TmywXb8cvPr2carpcwMQhU/8XE8K8OmSodEWM3urBGSKmmW5vTvf/mNIjnzuHMnUJOPklr4meELOg P/tWINEBqU3ovSubkqID59BhDPCxFJU5JFERrwQxqYNDAOfV+HKpGYe70itmwh0fDNYL81NHPm4Mb +rDfI7oLs4MlK4DL/DUg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ooUSS-001jI6-Qz; Fri, 28 Oct 2022 18:51:56 +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 1ooUSI-001jEa-7W for linux-arm-kernel@lists.infradead.org; Fri, 28 Oct 2022 18:51:47 +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 AD4D6B82C7B; Fri, 28 Oct 2022 18:51:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0FA8C43141; Fri, 28 Oct 2022 18:51:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666983103; bh=eXvVIaK1WoVbEDqH+qHY5uaGzBm7/shnB2HUwNFV4VA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nMfySMdSM6I/eNXpMX0NzrltznRT207kDbKJG4I+2SmSNoFgMTW5em/gfGR21Zmaa YFXwZd/7xtFEIbzcZnSanNSQw1mEOtmjbeipg+z38RT8Vb65+dDEOdRliOEyERFYPG hEQTfn8vd1m6T2JrCJ3w5th7g/58QOr7LQdLwM7aJWtgSd1UlH9bJYDUlXvJJ9RTn2 +aeaPQNQQZJisey8v0d2RWEjqHoKtLW92MgQ6JzD+eR6q6YOH0l7lScrHKRwYYGhOF pAco7pe6RjnhJFNvf7HuRDCThb7jYOEC3c/Ps7yctglwyWdB/AUgRn+OprZmXZoDqn fA+7ApqZ4pTuA== 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 v1 1/4] arm64/sme: Document ABI for TPIDR2 signal information Date: Fri, 28 Oct 2022 19:50:43 +0100 Message-Id: <20221028185046.1316730-2-broonie@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221028185046.1316730-1-broonie@kernel.org> References: <20221028185046.1316730-1-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/pANAwAKASTWi3JdVIfQAcsmYgBjXCSDqgZTCEeWJWX9IoHIVjYimCwKi3swBBjCu71s dXnY9xGJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCY1wkgwAKCRAk1otyXVSH0KYJB/ 9dIxQOxHgeo/9y9F+zFMQ7EwLcp1htLXavj83JXTBGwBjvrmIX5ivjlDofPXVNUL/9jlWIhtyN2ZoP QA4IYj7P522qoGlBCMH9OQLb8q/alflwjBCFhNGTnsAyJNpDRUvrSWqK7dtZQGX02OU3m65+AM8Vmd 4+UV76huXYnprbcIaaYt6KjbsxyR1XgzhI5+0r4skOTpNoGOlstZwYOTaG4gL1Zqy1PLnbb7TQAFcP LW6myWe2UYOknFuB6b4cfkfRLW1sKpWo0u+6QqyComoxyUO8Yr2aWT4ciz2ouAkcoPi/kk5NqQT5o4 B+GwkF7RV9YTCZhapoRhCdLquhvIsJ 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-20221028_115146_458434_88D0FE4B X-CRM114-Status: GOOD ( 10.58 ) 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