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 phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 606E5C4332F for ; Mon, 30 Oct 2023 08:28:30 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id C00428718F; Mon, 30 Oct 2023 09:28:27 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=fail (p=quarantine dis=none) header.from=andestech.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Received: by phobos.denx.de (Postfix, from userid 109) id 499068725E; Mon, 30 Oct 2023 09:28:26 +0100 (CET) Received: from Atcsqr.andestech.com (60-248-80-70.hinet-ip.hinet.net [60.248.80.70]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id A1C4187096 for ; Mon, 30 Oct 2023 09:28:18 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=fail (p=quarantine dis=none) header.from=andestech.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=ycliang@andestech.com Received: from mail.andestech.com (ATCPCS16.andestech.com [10.0.1.222]) by Atcsqr.andestech.com with ESMTP id 39U8S46p094356; Mon, 30 Oct 2023 16:28:04 +0800 (+08) (envelope-from ycliang@andestech.com) Received: from swlinux02 (10.0.15.183) by ATCPCS16.andestech.com (10.0.1.222) with Microsoft SMTP Server id 14.3.498.0; Mon, 30 Oct 2023 16:28:00 +0800 Date: Mon, 30 Oct 2023 16:24:22 +0800 From: Leo Liang To: Heinrich Schuchardt CC: Rick Chen , Sughosh Ganu , Anup Patel , Kautuk Consul , Chanho Park , Subject: Re: [RFC v2 1/2] riscv: allow resume after exception Message-ID: References: <20231029084533.44607-1-heinrich.schuchardt@canonical.com> <20231029084533.44607-2-heinrich.schuchardt@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20231029084533.44607-2-heinrich.schuchardt@canonical.com> User-Agent: Mutt/2.2.10 (e0e92c31) (2023-03-25) X-Originating-IP: [10.0.15.183] X-DNSRBL: X-MAIL: Atcsqr.andestech.com 39U8S46p094356 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean On Sun, Oct 29, 2023 at 09:45:32AM +0100, Heinrich Schuchardt wrote: > If CSRs like seed are readable by S-mode, may not be determinable by > S-mode. For safe driver probing allow to resume via a longjmp after an > exception. > > Signed-off-by: Heinrich Schuchardt > --- > v2: > new patch > --- > arch/riscv/lib/interrupts.c | 13 +++++++++++++ > include/interrupt.h | 22 ++++++++++++++++++++++ > 2 files changed, 35 insertions(+) > create mode 100644 include/interrupt.h Reviewed-by: Leo Yu-Chi Liang