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 X-Spam-Level: X-Spam-Status: No, score=-8.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E412C04AB1 for ; Thu, 9 May 2019 19:05:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E8FF72089E for ; Thu, 9 May 2019 19:05:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557428727; bh=n6R/SMkEDuB4xZ6Ddy+01pQ8t9J5hnVCEn33UDP+TM8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=QTL1NnOEtZhNkqoO+k97/Wq72e2HDjWqc72mDySdTW5wfoM/hjF3YZudvDKKbhuC8 Zbpg8TLZ/CYYGeBTCMoj++2XVYvoUX8HCOjDfk8cQM8cOTBE8s8Wef9t7rfFJ9gB5Z asTEgZxwZNf3ZB0lmzdcMM3nZUgjQRea5eQbEJhU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726844AbfEITFV (ORCPT ); Thu, 9 May 2019 15:05:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:40520 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727874AbfEISrt (ORCPT ); Thu, 9 May 2019 14:47:49 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A9533217D7; Thu, 9 May 2019 18:47:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557427668; bh=n6R/SMkEDuB4xZ6Ddy+01pQ8t9J5hnVCEn33UDP+TM8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U0gSLRpLGzlrygrgVLNoX274O9PD91rfrNNcTYUjanFjJAHmyMBlFUz6z9MwPIsVP zfRSV3f9Bt8yIfA9N1Y7M/Hi2Sk8qaoMwWAOkp1gw+CWxzWUgs8+Lc5fqJZma+4TXR RBGtGtt65FQ9MAGUw8qHEhRwj/KENUjLL/zXmGdI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chong Qiao , Douglas Anderson , Daniel Thompson , Paul Burton , Ralf Baechle , James Hogan , Will Deacon , Christophe Leroy , linux-mips@vger.kernel.org, Sasha Levin Subject: [PATCH 4.19 26/66] MIPS: KGDB: fix kgdb support for SMP platforms. Date: Thu, 9 May 2019 20:42:01 +0200 Message-Id: <20190509181304.656350630@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190509181301.719249738@linuxfoundation.org> References: <20190509181301.719249738@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org [ Upstream commit ab8a6d821179ab9bea1a9179f535ccba6330c1ed ] KGDB_call_nmi_hook is called by other cpu through smp call. MIPS smp call is processed in ipi irq handler and regs is saved in handle_int. So kgdb_call_nmi_hook get regs by get_irq_regs and regs will be passed to kgdb_cpu_enter. Signed-off-by: Chong Qiao Reviewed-by: Douglas Anderson Acked-by: Daniel Thompson Signed-off-by: Paul Burton Cc: Ralf Baechle Cc: James Hogan Cc: Will Deacon Cc: Christophe Leroy Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: QiaoChong Signed-off-by: Sasha Levin --- arch/mips/kernel/kgdb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c index eb6c0d582626b..2c1e30ca7ee4e 100644 --- a/arch/mips/kernel/kgdb.c +++ b/arch/mips/kernel/kgdb.c @@ -33,6 +33,7 @@ #include #include #include +#include static struct hard_trap_info { unsigned char tt; /* Trap type code for MIPS R3xxx and R4xxx */ @@ -214,7 +215,7 @@ static void kgdb_call_nmi_hook(void *ignored) old_fs = get_fs(); set_fs(get_ds()); - kgdb_nmicallback(raw_smp_processor_id(), NULL); + kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs()); set_fs(old_fs); } -- 2.20.1