From patchwork Fri May 31 06:12:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stewart Smith X-Patchwork-Id: 1108085 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 45FZCV3GzVz9s00 for ; Fri, 31 May 2019 16:23:50 +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 45FZCV2J5gzDqcS for ; Fri, 31 May 2019 16:23:50 +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 45FZ0K65THzDqYB for ; Fri, 31 May 2019 16:14:09 +1000 (AEST) Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4V64E4p076135 for ; Fri, 31 May 2019 02:14:07 -0400 Received: from e31.co.us.ibm.com (e31.co.us.ibm.com [32.97.110.149]) by mx0a-001b2d01.pphosted.com with ESMTP id 2stvha4a4s-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 31 May 2019 02:14:07 -0400 Received: from localhost by e31.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 31 May 2019 07:14:06 +0100 Received: from b03cxnp08026.gho.boulder.ibm.com (9.17.130.18) by e31.co.us.ibm.com (192.168.1.131) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 31 May 2019 07:14:04 +0100 Received: from b03ledav005.gho.boulder.ibm.com (b03ledav005.gho.boulder.ibm.com [9.17.130.236]) by b03cxnp08026.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x4V6E3YC7864800 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 31 May 2019 06:14:03 GMT Received: from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 48E2BBE05B for ; Fri, 31 May 2019 06:14:03 +0000 (GMT) Received: from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 11C68BE058 for ; Fri, 31 May 2019 06:14:03 +0000 (GMT) Received: from birb.localdomain (unknown [9.185.142.91]) by b03ledav005.gho.boulder.ibm.com (Postfix) with ESMTP for ; Fri, 31 May 2019 06:14:03 +0000 (GMT) Received: by birb.localdomain (Postfix, from userid 1000) id 22978503F7E; Fri, 31 May 2019 16:13:57 +1000 (AEST) From: Stewart Smith To: skiboot@lists.ozlabs.org Date: Fri, 31 May 2019 16:12:42 +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: 19053106-8235-0000-0000-00000EA0F3A8 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 06:14:05 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19053106-8236-0000-0000-000045C9C0EB Message-Id: <20190531061351.22973-42-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=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905310040 Subject: [Skiboot] [PATCH 041/110] Document the long removed OPAL_REGISTER_OPAL_EXCEPTION_HANDLER call 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" I'm pretty sure this was removed in one of our first ever service packs. Fixes: https://github.com/open-power/skiboot/issues/98 Signed-off-by: Stewart Smith --- doc/opal-api/index.rst | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) diff --git a/doc/opal-api/index.rst b/doc/opal-api/index.rst index 003014fb9703..98fedee9f723 100644 --- a/doc/opal-api/index.rst +++ b/doc/opal-api/index.rst @@ -61,7 +61,7 @@ The OPAL API is the interface between an Operating System and OPAL. | :ref:`OPAL_GET_COMPLETION_TOKEN_STATUS` | 21 | Never | | Never | | | | | | Implemented | +---------------------------------------------+--------------+------------------------+----------+-----------------+ -| :ref:`OPAL_REGISTER_OPAL_EXCEPTION_HANDLER` | 22 | v1.0 (Initial Release) | POWER8 | | +| :ref:`OPAL_REGISTER_OPAL_EXCEPTION_HANDLER` | 22 | v1.0 (Initial Release) | | Removed | +---------------------------------------------+--------------+------------------------+----------+-----------------+ | :ref:`OPAL_PCI_EEH_FREEZE_STATUS` | 23 | v1.0 (Initial Release) | POWER8 | | +---------------------------------------------+--------------+------------------------+----------+-----------------+ @@ -386,6 +386,8 @@ removed and no longer supported. +---------------------------------------------+-------+-----------------------+-----------------------+ | :ref:`OPAL_OLD_I2C_REQUEST` | 106 | v4.0 | v4.0 | +---------------------------------------------+-------+-----------------------+-----------------------+ +| :ref:`OPAL_REGISTER_OPAL_EXCEPTION_HANDLER` | 22 | v1.0 Initial Release | :ref:`skiboot-5.0` | ++---------------------------------------------+-------+-----------------------+-----------------------+ | :ref:`OPAL_PCI_SET_HUB_TCE_MEMORY` | 11 | pre-v1.0 | :ref:`skiboot-5.2.0` | +---------------------------------------------+-------+-----------------------+-----------------------+ | :ref:`OPAL_PCI_SET_PHB_TCE_MEMORY` | 12 | pre-v1.0 | :ref:`skiboot-5.2.0` | @@ -416,6 +418,36 @@ OPAL_OLD_I2C_REQUEST Never used. Only existing briefly in the :ref:`skiboot-4.0` development cycle. + +.. _OPAL_REGISTER_OPAL_EXCEPTION_HANDLER: + +OPAL_REGISTER_OPAL_EXCEPTION_HANDLER +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +.. code-block:: c + + #define OPAL_REGISTER_OPAL_EXCEPTION_HANDLER 22 + + + int64_t opal_register_exc_handler(uint64_t opal_exception __unused, + uint64_t handler_address __unused, + uint64_t glue_cache_line __unused); + + +This call existed for a very short period of time and only ever worked with Big +Endian host operating systems. The idea was that OPAL would handle HMIs and +an OS could (if it chose to) register a handler for them. This call is not +required since the introduction of :ref:`OPAL_HANDLE_HMI` and all machines that +ever shipped without :ref:`OPAL_HANDLE_HMI` have a firmware update that +supports it. For IBM Tuleta machines, this was FW810.20 (released Oct 2014) +that had :ref:`OPAL_HANDLE_HMI` support. + +This call was removed in :ref:`skiboot-5.0` and now just +returns :ref:`OPAL_UNSUPPORTED`. + +Use of the :ref:`OPAL_HANDLE_HMI` call was introduced in Linux 3.17. + + .. _OPAL_PCI_SET_HUB_TCE_MEMORY: OPAL_PCI_SET_HUB_TCE_MEMORY