From patchwork Mon May 9 17:43:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Scott Cheloha X-Patchwork-Id: 571199 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 59D06C433F5 for ; Mon, 9 May 2022 17:45:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239771AbiEIRtH (ORCPT ); Mon, 9 May 2022 13:49:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35068 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239768AbiEIRtH (ORCPT ); Mon, 9 May 2022 13:49:07 -0400 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DAF432878F1 for ; Mon, 9 May 2022 10:45:12 -0700 (PDT) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 249Ge8Z4012590; Mon, 9 May 2022 17:44:58 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=9Wz59AQv5F9c35eNRR5Beoc6oCxG/HJCCp9oNBfcVNc=; b=LIpae4zjVq9hBmpLzsJ+eeK8VMlu313bcqIL7HpRbOu06dtLea3FkMqmVcXZHzDryXFn 73Sm5Tk6s13zR1juqu8zyg26PIhKmWgMWSGaMFesxpmNj1KIH1adeTz/DhQ5lReWwgEV orilTZq9Cyv067mdB7laEqksdv0e5nVoRfi6S+yU/LHpOxEH0Xh0JAi7jW1bIVsPLIaA hLNKGApWbJ+3ZABoUAtPouaiCiY1X0NN5NhKR8rGseG8JkxIt6660WqlFj8NvuUlea1p T+FzHOa/lcjkZAa/QurEs+8b3A1HhnVsv3dMb3SHJgl4ga50q9CWdDmPaKFPtQECnZx5 JA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3fy3thn73v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 09 May 2022 17:44:58 +0000 Received: from m0098421.ppops.net (m0098421.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 249HNKUH010626; Mon, 9 May 2022 17:44:57 GMT Received: from ppma04wdc.us.ibm.com (1a.90.2fa9.ip4.static.sl-reverse.com [169.47.144.26]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3fy3thn73t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 09 May 2022 17:44:57 +0000 Received: from pps.filterd (ppma04wdc.us.ibm.com [127.0.0.1]) by ppma04wdc.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 249HhbN9009307; Mon, 9 May 2022 17:44:57 GMT Received: from b03cxnp07028.gho.boulder.ibm.com (b03cxnp07028.gho.boulder.ibm.com [9.17.130.15]) by ppma04wdc.us.ibm.com with ESMTP id 3fwgd9fqv3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 09 May 2022 17:44:57 +0000 Received: from b03ledav006.gho.boulder.ibm.com (b03ledav006.gho.boulder.ibm.com [9.17.130.237]) by b03cxnp07028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 249Hit4c26804620 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 9 May 2022 17:44:55 GMT Received: from b03ledav006.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 29819C6061; Mon, 9 May 2022 17:44:55 +0000 (GMT) Received: from b03ledav006.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 096AEC605A; Mon, 9 May 2022 17:44:55 +0000 (GMT) Received: from localhost (unknown [9.41.178.126]) by b03ledav006.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 9 May 2022 17:44:54 +0000 (GMT) From: Scott Cheloha To: linux-watchdog@vger.kernel.org Cc: linux@roeck-us.net, tzungbi@kernel.org, brking@linux.ibm.com, nathanl@linux.ibm.com, aik@ozlabs.ru, npiggin@gmail.com, vaishnavi@linux.ibm.com, wvoigt@us.ibm.com, Scott Cheloha Subject: [RFC v2 1/2] powerpc/pseries: hvcall.h: add H_WATCHDOG opcode, H_NOOP return code Date: Mon, 9 May 2022 12:43:56 -0500 Message-Id: <20220509174357.5448-2-cheloha@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220509174357.5448-1-cheloha@linux.ibm.com> References: <20220509174357.5448-1-cheloha@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: S0h120tj9cGNMpOEvhqmAzzIUvSRaDYD X-Proofpoint-ORIG-GUID: a89uzh8YWUkg87hc4PgXJ2ELCD82FAbY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.858,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-05-09_05,2022-05-09_02,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 impostorscore=0 adultscore=0 mlxlogscore=999 clxscore=1015 mlxscore=0 priorityscore=1501 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2205090092 Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org PAPR v2.12 defines a new hypercall, H_WATCHDOG. The hypercall permits guest control of one or more virtual watchdog timers. This patch adds the opcode for the H_WATCHDOG hypercall. It also defines H_NOOP, a possible return code for H_WATCHDOG. Signed-off-by: Scott Cheloha --- arch/powerpc/include/asm/hvcall.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index d92a20a85395..4b4f69c35b4f 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -87,6 +87,7 @@ #define H_P7 -60 #define H_P8 -61 #define H_P9 -62 +#define H_NOOP -63 #define H_TOO_BIG -64 #define H_UNSUPPORTED -67 #define H_OVERLAP -68 @@ -324,7 +325,8 @@ #define H_RPT_INVALIDATE 0x448 #define H_SCM_FLUSH 0x44C #define H_GET_ENERGY_SCALE_INFO 0x450 -#define MAX_HCALL_OPCODE H_GET_ENERGY_SCALE_INFO +#define H_WATCHDOG 0x45C +#define MAX_HCALL_OPCODE H_WATCHDOG /* Scope args for H_SCM_UNBIND_ALL */ #define H_UNBIND_SCOPE_ALL (0x1)