From patchwork Thu May 9 18:41:50 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 10937553 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 310A276 for ; Thu, 9 May 2019 18:59:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 227DB2893F for ; Thu, 9 May 2019 18:59:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1637D28A01; Thu, 9 May 2019 18:59:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6BBAD2893F for ; Thu, 9 May 2019 18:59:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728756AbfEISwm (ORCPT ); Thu, 9 May 2019 14:52:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:46874 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728749AbfEISwm (ORCPT ); Thu, 9 May 2019 14:52:42 -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 B2D4B217F5; Thu, 9 May 2019 18:52:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557427961; bh=NMYyZT0F0YGxz2ey2INVI3Xw3PP5AjmNPCWm6Y2eH8U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=N1/jjW6rlUSLUXeFynj1CI7MUf4dDnMHsSjo9ihhlSLx8t7lx8qmm2iPqdf+vjFEN XTT04+8pBayaBKVfiy+jz+uoyQxIUjKu4Rm1MV+V2HUNGs5xXdIabG6xh+p43Oujbf F4U7OYTQVj7emrKigNtB+kN6fS3iItHT9msAmN4I= 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 5.0 33/95] MIPS: KGDB: fix kgdb support for SMP platforms. Date: Thu, 9 May 2019 20:41:50 +0200 Message-Id: <20190509181311.612414702@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190509181309.180685671@linuxfoundation.org> References: <20190509181309.180685671@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP [ 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 149100e1bc7c4..90f37626100fe 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 @@ 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); }