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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,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 0A714C43219 for ; Sat, 27 Apr 2019 01:50:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C76A0206BA for ; Sat, 27 Apr 2019 01:50:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556329838; bh=m8Uv4mu0G420dZMTfAaTAzt4QTqiurP9GomMjd4p7P8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=DRirbzjd0X5ut5oMbC1sFr4YInB7j/yA6W93pRKA7zd/JsdvXNwkCFYdJ+9jEeQBL bV3uyZbXAmU3j+MR9Fy9LRmGVX/3eTXwhs86P623BeQeVd3+siKIYBMhrRuHkNtTSZ +HSR/kGQcAWrBUodcPckK314ltYqki4YcUbr2zPs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727670AbfD0BlZ (ORCPT ); Fri, 26 Apr 2019 21:41:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:45218 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728264AbfD0BlY (ORCPT ); Fri, 26 Apr 2019 21:41:24 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D692320C01; Sat, 27 Apr 2019 01:41:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556329284; bh=m8Uv4mu0G420dZMTfAaTAzt4QTqiurP9GomMjd4p7P8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UhsLBDh/sKUeel18zywKqX4u5pVsq0VQ4sG/oIW/6FMyt1x288ZP/9ZeKmDtPCTDv uXHHtN8sf+M+B3pNFIHbEh/9mAq6esllkrMGM/WdlmD+lAbv55dtjUfi6lj8M8dVaI xegMIY+z4ASTaGHtGBFdJ55JAmeqmnU4WWwysZfg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Chong Qiao , Paul Burton , Ralf Baechle , James Hogan , Will Deacon , Christophe Leroy , linux-mips@vger.kernel.org, Sasha Levin Subject: [PATCH AUTOSEL 4.19 21/53] MIPS: KGDB: fix kgdb support for SMP platforms. Date: Fri, 26 Apr 2019 21:40:18 -0400 Message-Id: <20190427014051.7522-21-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190427014051.7522-1-sashal@kernel.org> References: <20190427014051.7522-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: Chong Qiao [ 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 eb6c0d582626..2c1e30ca7ee4 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); } -- 2.19.1