From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D69FBC11F64 for ; Thu, 1 Jul 2021 13:36:24 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 80C3E6141A for ; Thu, 1 Jul 2021 13:36:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 80C3E6141A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4GFzkv1dHjz3bYM for ; Thu, 1 Jul 2021 23:36:23 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=softfail (domain owner discourages use of this host) smtp.mailfrom=kaod.org (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=clg@kaod.org; receiver=) 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 4GFzYg53dsz3bX8 for ; Thu, 1 Jul 2021 23:28:23 +1000 (AEST) Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 161D4cRX047451; Thu, 1 Jul 2021 09:28:12 -0400 Received: from ppma05fra.de.ibm.com (6c.4a.5195.ip4.static.sl-reverse.com [149.81.74.108]) by mx0a-001b2d01.pphosted.com with ESMTP id 39hcxa3bbf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Jul 2021 09:28:11 -0400 Received: from pps.filterd (ppma05fra.de.ibm.com [127.0.0.1]) by ppma05fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 161DKIRo005592; Thu, 1 Jul 2021 13:28:09 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma05fra.de.ibm.com with ESMTP id 39ft8erqar-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Jul 2021 13:28:09 +0000 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 161DS6eS26280304 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 1 Jul 2021 13:28:07 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C6B305208B; Thu, 1 Jul 2021 13:28:06 +0000 (GMT) Received: from smtp.tlslab.ibm.com (unknown [9.101.4.1]) by d06av21.portsmouth.uk.ibm.com (Postfix) with SMTP id A2DD2520BE; Thu, 1 Jul 2021 13:28:06 +0000 (GMT) Received: from yukon.ibmuc.com (unknown [9.171.33.183]) by smtp.tlslab.ibm.com (Postfix) with ESMTP id 2946722016C; Thu, 1 Jul 2021 15:28:06 +0200 (CEST) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 20/32] powerpc/xics: Add support for IRQ domain hierarchy Date: Thu, 1 Jul 2021 15:27:38 +0200 Message-Id: <20210701132750.1475580-21-clg@kaod.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210701132750.1475580-1-clg@kaod.org> References: <20210701132750.1475580-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: xPpfn_YY42RuDUr80A-8MHkvxOqnRRaV X-Proofpoint-GUID: xPpfn_YY42RuDUr80A-8MHkvxOqnRRaV X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-07-01_07:2021-07-01, 2021-07-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1034 suspectscore=0 mlxlogscore=999 spamscore=0 mlxscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 adultscore=0 phishscore=0 bulkscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2107010082 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: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" XICS doesn't have any state associated with the IRQ. The support is straightforward and simpler than for XIVE. Signed-off-by: C=C3=A9dric Le Goater --- arch/powerpc/sysdev/xics/xics-common.c | 41 ++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev= /xics/xics-common.c index 419d91bffec3..e82d0d4ddec0 100644 --- a/arch/powerpc/sysdev/xics/xics-common.c +++ b/arch/powerpc/sysdev/xics/xics-common.c @@ -406,7 +406,48 @@ int xics_retrigger(struct irq_data *data) return 0; } =20 +#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY +static int xics_host_domain_translate(struct irq_domain *d, struct irq_f= wspec *fwspec, + unsigned long *hwirq, unsigned int *type) +{ + return xics_host_xlate(d, to_of_node(fwspec->fwnode), fwspec->param, + fwspec->param_count, hwirq, type); +} + +static int xics_host_domain_alloc(struct irq_domain *domain, unsigned in= t virq, + unsigned int nr_irqs, void *arg) +{ + struct irq_fwspec *fwspec =3D arg; + irq_hw_number_t hwirq; + unsigned int type =3D IRQ_TYPE_NONE; + int i, rc; + + rc =3D xics_host_domain_translate(domain, fwspec, &hwirq, &type); + if (rc) + return rc; + + pr_debug("%s %d/%lx #%d\n", __func__, virq, hwirq, nr_irqs); + + for (i =3D 0; i < nr_irqs; i++) + irq_domain_set_info(domain, virq + i, hwirq + i, xics_ics->chip, + xics_ics, handle_fasteoi_irq, NULL, NULL); + + return 0; +} + +static void xics_host_domain_free(struct irq_domain *domain, + unsigned int virq, unsigned int nr_irqs) +{ + pr_debug("%s %d #%d\n", __func__, virq, nr_irqs); +} +#endif + static const struct irq_domain_ops xics_host_ops =3D { +#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY + .alloc =3D xics_host_domain_alloc, + .free =3D xics_host_domain_free, + .translate =3D xics_host_domain_translate, +#endif .match =3D xics_host_match, .map =3D xics_host_map, .xlate =3D xics_host_xlate, --=20 2.31.1