From patchwork Fri May 31 06:12:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stewart Smith X-Patchwork-Id: 1108074 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FZ8x6lQ4z9s00 for ; Fri, 31 May 2019 16:21:37 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FZ8x5nX2zDqbm for ; Fri, 31 May 2019 16:21:37 +1000 (AEST) X-Original-To: skiboot@lists.ozlabs.org Delivered-To: skiboot@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=linux.ibm.com (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=stewart@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FZ0K0fVkzDqXw for ; Fri, 31 May 2019 16:14:08 +1000 (AEST) Received: from pps.filterd (m0098409.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4V643H5060029 for ; Fri, 31 May 2019 02:14:07 -0400 Received: from e14.ny.us.ibm.com (e14.ny.us.ibm.com [129.33.205.204]) by mx0a-001b2d01.pphosted.com with ESMTP id 2stx4v99wy-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 31 May 2019 02:14:06 -0400 Received: from localhost by e14.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 31 May 2019 07:14:03 +0100 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp22034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x4V6E3nC26017894 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 31 May 2019 06:14:03 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F2BF8AC062 for ; Fri, 31 May 2019 06:14:02 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B0B31AC059 for ; Fri, 31 May 2019 06:14:02 +0000 (GMT) Received: from birb.localdomain (unknown [9.185.142.91]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP for ; Fri, 31 May 2019 06:14:02 +0000 (GMT) Received: by birb.localdomain (Postfix, from userid 1000) id ECF72503F6D; Fri, 31 May 2019 16:13:56 +1000 (AEST) From: Stewart Smith To: skiboot@lists.ozlabs.org Date: Fri, 31 May 2019 16:12:33 +1000 X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531061351.22973-1-stewart@linux.ibm.com> References: <20190531061351.22973-1-stewart@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19053106-0052-0000-0000-000003C97739 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00011189; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000286; SDB=6.01211088; UDB=6.00636341; IPR=6.00992124; MB=3.00027126; MTD=3.00000008; XFM=3.00000015; UTC=2019-05-31 06:14:04 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19053106-0053-0000-0000-0000611BF5E0 Message-Id: <20190531061351.22973-33-stewart@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-05-31_03:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=626 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905310040 Subject: [Skiboot] [PATCH 032/110] doc: Add example to OPAL_CEC_POWER_DOWN X-BeenThere: skiboot@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Mailing list for skiboot development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: skiboot-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Skiboot" Signed-off-by: Stewart Smith --- doc/opal-api/opal-cec-power-down-5.rst | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/doc/opal-api/opal-cec-power-down-5.rst b/doc/opal-api/opal-cec-power-down-5.rst index b4b236e2467c..7a84fce891f9 100644 --- a/doc/opal-api/opal-cec-power-down-5.rst +++ b/doc/opal-api/opal-cec-power-down-5.rst @@ -9,6 +9,24 @@ OPAL_CEC_POWER_DOWN int64 opal_cec_power_down(uint64 request) +As powering down the system is likely an asynchronous operation that we +have to wait for a service processor to do, :ref:`OPAL_CEC_POWER_DOWN` +should be called like the example code below: + +.. code-block:: c + + int rc = OPAL_BUSY; + + do { + rc = opal_cec_power_down(0); + if (rc == OPAL_BUSY_EVENT) + opal_poll_events(NULL); + } while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT); + + for (;;) + opal_poll_events(NULL); + + Arguments ---------