From patchwork Mon Dec 12 23:01:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nathan Lynch X-Patchwork-Id: 1715169 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=JBEj399H; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4NWHFr1BJqz23pD for ; Tue, 13 Dec 2022 10:02:23 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4NWHFp6Ny3z3bgK for ; Tue, 13 Dec 2022 10:02:22 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=JBEj399H; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=nathanl@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=JBEj399H; dkim-atps=neutral Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (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 4NWHFN6Hknz300l for ; Tue, 13 Dec 2022 10:02:00 +1100 (AEDT) Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2BCMoB08022679 for ; Mon, 12 Dec 2022 23:01:57 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : content-transfer-encoding : mime-version; s=pp1; bh=vM+I6OjeqoWtjSJDHQsFHMb66iJ/1wSriDm14TpEba4=; b=JBEj399H/lGK4mQQVegTwlUmi9jQ1hoQp3DOQbJrKZLPSVuWjv6YD/ZrJLxdh2RpCSgw dOcRiHyVlzkHNQxfN6x1eK+Nej7ltvX7MNCweotmjcYgjnCr4GoGCvdTE/U94JGstdOw rdLOT0qFWR1NHmcApfPcCadDb7wwS8RtkM7gb9mCzaYAcOovMCbEp0IO+S262rweNzxF t82lac/kkryNlMkYU12zttRwfQCGfZXmmVg5Dil8QCy6hSnW3v4OUMqPqPUKz2n1A+GV x4VLy2Q0EVI3GQpMkowsathNHkdRGRflfObV6RUYl00mpakv23NBKZLH9cui7DyTmL76 zQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3meden86xg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 12 Dec 2022 23:01:56 +0000 Received: from m0098419.ppops.net (m0098419.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 2BCMrjqs002013 for ; Mon, 12 Dec 2022 23:01:56 GMT Received: from ppma05wdc.us.ibm.com (1b.90.2fa9.ip4.static.sl-reverse.com [169.47.144.27]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3meden86x9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 12 Dec 2022 23:01:56 +0000 Received: from pps.filterd (ppma05wdc.us.ibm.com [127.0.0.1]) by ppma05wdc.us.ibm.com (8.17.1.19/8.16.1.2) with ESMTP id 2BCKrhOM011429; Mon, 12 Dec 2022 23:01:55 GMT Received: from smtprelay03.dal12v.mail.ibm.com ([9.208.130.98]) by ppma05wdc.us.ibm.com (PPS) with ESMTPS id 3mchr6fs14-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 12 Dec 2022 23:01:55 +0000 Received: from smtpav06.dal12v.mail.ibm.com (smtpav06.dal12v.mail.ibm.com [10.241.53.105]) by smtprelay03.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 2BCN1sZE4195046 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 12 Dec 2022 23:01:54 GMT Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B5939580B0; Mon, 12 Dec 2022 23:01:54 +0000 (GMT) Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9B43458043; Mon, 12 Dec 2022 23:01:54 +0000 (GMT) Received: from localhost (unknown [9.163.54.62]) by smtpav06.dal12v.mail.ibm.com (Postfix) with ESMTP; Mon, 12 Dec 2022 23:01:54 +0000 (GMT) From: Nathan Lynch To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 0/4] RTAS function table and tracepoints Date: Mon, 12 Dec 2022 17:01:50 -0600 Message-Id: <20221212230154.851325-1-nathanl@linux.ibm.com> X-Mailer: git-send-email 2.37.3 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: GBbWAv3OnxVPK8raUEgLBy65GhWK4HDi X-Proofpoint-GUID: r3Rxs65C7MtvCuoeqYmWiY3qg1kerOk_ X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-12_02,2022-12-12_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 suspectscore=0 mlxscore=0 adultscore=0 malwarescore=0 impostorscore=0 clxscore=1015 mlxlogscore=999 priorityscore=1501 lowpriorityscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2212120194 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tyreld@linux.ibm.com, nnac123@linux.ibm.com, ldufour@linux.ibm.com, ajd@linux.ibm.com, npiggin@gmail.com Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Resubmiting with revisions the remainder from the earlier "RTAS maintenance" series[1] for further comments. Components: * Improved function token lookups, including efficient "reverse" token-to-name mappings. * Static tracepoints for RTAS entry and exit. Changes: * Rebase on current powerpc/next. * Drop unnecessary cast for xa_load() key argument. (Nick Child) * Document RTAS_FN_FLAG_BANNED_FOR_SYSCALL_ON_LE. (Andrew Donnellan) * Skip tracepoints in unsafe contexts (real mode, CPU offline). (Nicholas Piggin) * Convert RTAS tracepoint definitions to unconditional variants (TRACE_EVENT_CONDITION() -> TRACE_EVENT()), dropping a cpu_online() check that duplicates work already done at the call site. [1] https://lore.kernel.org/linuxppc-dev/20221118150751.469393-1-nathanl@linux.ibm.com/ Nathan Lynch (4): powerpc/rtas: improve function information lookups powerpc/rtas: strengthen do_enter_rtas() type safety, drop inline powerpc/tracing: tracepoints for RTAS entry and exit powerpc/rtas: add tracepoints around RTAS entry arch/powerpc/include/asm/rtas.h | 87 ++++ arch/powerpc/include/asm/trace.h | 103 ++++ arch/powerpc/kernel/rtas.c | 806 ++++++++++++++++++++++++++----- 3 files changed, 874 insertions(+), 122 deletions(-)