From patchwork Mon Jan 16 20:57:56 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vineet Gupta X-Patchwork-Id: 715919 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2001:1868:205::9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3v2QZV0WJmz9s3s for ; Tue, 17 Jan 2017 07:58:58 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cTEMi-0007wv-J0; Mon, 16 Jan 2017 20:58:56 +0000 Received: from smtprelay4.synopsys.com ([198.182.47.9] helo=smtprelay.synopsys.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cTEMf-0007sT-F2 for linux-snps-arc@lists.infradead.org; Mon, 16 Jan 2017 20:58:54 +0000 Received: from mailhost.synopsys.com (mailhost2.synopsys.com [10.13.184.66]) by smtprelay.synopsys.com (Postfix) with ESMTP id 5228124E01A1; Mon, 16 Jan 2017 12:58:35 -0800 (PST) Received: from mailhost.synopsys.com (localhost [127.0.0.1]) by mailhost.synopsys.com (Postfix) with ESMTP id 40C6EB58; Mon, 16 Jan 2017 12:58:35 -0800 (PST) Received: from US01WEHTC3.internal.synopsys.com (us01wehtc3.internal.synopsys.com [10.15.84.232]) by mailhost.synopsys.com (Postfix) with ESMTP id 36FFFB55; Mon, 16 Jan 2017 12:58:35 -0800 (PST) Received: from IN01WEHTCB.internal.synopsys.com (10.144.199.106) by US01WEHTC3.internal.synopsys.com (10.15.84.232) with Microsoft SMTP Server (TLS) id 14.3.266.1; Mon, 16 Jan 2017 12:58:34 -0800 Received: from IN01WEHTCA.internal.synopsys.com (10.144.199.103) by IN01WEHTCB.internal.synopsys.com (10.144.199.105) with Microsoft SMTP Server (TLS) id 14.3.266.1; Tue, 17 Jan 2017 02:28:32 +0530 Received: from vineetg-Latitude-E7450.internal.synopsys.com (10.10.161.70) by IN01WEHTCA.internal.synopsys.com (10.144.199.243) with Microsoft SMTP Server (TLS) id 14.3.266.1; Tue, 17 Jan 2017 02:28:31 +0530 From: Vineet Gupta To: , Subject: [PATCH 3/4] ARCv2: smp: MCIP: remove debug aid to halt all cores when one halts Date: Mon, 16 Jan 2017 12:57:56 -0800 Message-ID: <1484600277-32345-4-git-send-email-vgupta@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1484600277-32345-1-git-send-email-vgupta@synopsys.com> References: <1484600277-32345-1-git-send-email-vgupta@synopsys.com> MIME-Version: 1.0 X-Originating-IP: [10.10.161.70] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170116_125853_522893_62C25057 X-CRM114-Status: UNSURE ( 6.41 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -5.1 (-----) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-5.1 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [198.182.47.9 listed in wl.mailspike.net] -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [198.182.47.9 listed in list.dnswl.org] -3.2 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vineet Gupta , linux-kernel@vger.kernel.org Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org This was really usefull when doing initial bringup and also for occassional debug of software and hardware bugs. However in the new smp-boot regime, non masters will "self" halt even for run-on-reset configs. This will misinteract with the debug feature as in even master will get halted when the non masters self halt. Signed-off-by: Vineet Gupta --- arch/arc/kernel/mcip.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arc/kernel/mcip.c b/arch/arc/kernel/mcip.c index f39142acc89e..933382e0edd0 100644 --- a/arch/arc/kernel/mcip.c +++ b/arch/arc/kernel/mcip.c @@ -101,11 +101,6 @@ static void mcip_probe_n_setup(void) IS_AVAIL1(mp.gfrc, "GFRC")); cpuinfo_arc700[0].extn.gfrc = mp.gfrc; - - if (mp.dbg) { - __mcip_cmd_data(CMD_DEBUG_SET_SELECT, 0, 0xf); - __mcip_cmd_data(CMD_DEBUG_SET_MASK, 0xf, 0xf); - } } struct plat_smp_ops plat_smp_ops = {