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Thu, 1 Jul 2021 13:28:10 +0000 (GMT) Received: from smtp.tlslab.ibm.com (unknown [9.101.4.1]) by d06av25.portsmouth.uk.ibm.com (Postfix) with SMTP; Thu, 1 Jul 2021 13:28:10 +0000 (GMT) Received: from yukon.ibmuc.com (unknown [9.171.33.183]) by smtp.tlslab.ibm.com (Postfix) with ESMTP id 829122201CC; Thu, 1 Jul 2021 15:28:09 +0200 (CEST) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 27/32] powerpc/xics: Fix IRQ migration Date: Thu, 1 Jul 2021 15:27:45 +0200 Message-Id: <20210701132750.1475580-28-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-GUID: p4kyd6zXlGCsQU8cBl7sM_78QGYAnSbn X-Proofpoint-ORIG-GUID: p4kyd6zXlGCsQU8cBl7sM_78QGYAnSbn 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 priorityscore=1501 phishscore=0 lowpriorityscore=0 impostorscore=0 adultscore=0 spamscore=0 suspectscore=0 bulkscore=0 clxscore=1034 mlxscore=0 mlxlogscore=880 malwarescore=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" desc->irq_data points to the top level IRQ data descriptor which is not necessarily in the XICS IRQ domain. MSIs are in another domain for instance. Fix that by looking for a mapping on the low level XICS IRQ domain. Signed-off-by: C=C3=A9dric Le Goater --- arch/powerpc/sysdev/xics/xics-common.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev= /xics/xics-common.c index e82d0d4ddec0..0b8b49446992 100644 --- a/arch/powerpc/sysdev/xics/xics-common.c +++ b/arch/powerpc/sysdev/xics/xics-common.c @@ -183,6 +183,8 @@ void xics_migrate_irqs_away(void) unsigned int irq, virq; struct irq_desc *desc; =20 + pr_debug("%s: CPU %u\n", __func__, cpu); + /* If we used to be the default server, move to the new "boot_cpuid" */ if (hw_cpu =3D=3D xics_default_server) xics_update_irq_servers(); @@ -197,6 +199,7 @@ void xics_migrate_irqs_away(void) struct irq_chip *chip; long server; unsigned long flags; + struct irq_data *irqd; =20 /* We can't set affinity on ISA interrupts */ if (virq < NUM_ISA_INTERRUPTS) @@ -204,9 +207,11 @@ void xics_migrate_irqs_away(void) /* We only need to migrate enabled IRQS */ if (!desc->action) continue; - if (desc->irq_data.domain !=3D xics_host) + /* We need a mapping in the XICS IRQ domain */ + irqd =3D irq_domain_get_irq_data(xics_host, virq); + if (!irqd) continue; - irq =3D desc->irq_data.hwirq; + irq =3D irqd_to_hwirq(irqd); /* We need to get IPIs still. */ if (irq =3D=3D XICS_IPI || irq =3D=3D XICS_IRQ_SPURIOUS) continue; --=20 2.31.1