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Thu, 1 Jul 2021 13:28:02 +0000 (GMT) Received: from smtp.tlslab.ibm.com (unknown [9.101.4.1]) by d06av23.portsmouth.uk.ibm.com (Postfix) with SMTP; Thu, 1 Jul 2021 13:28:02 +0000 (GMT) Received: from yukon.ibmuc.com (unknown [9.171.33.183]) by smtp.tlslab.ibm.com (Postfix) with ESMTP id E021F2201CC; Thu, 1 Jul 2021 15:28:01 +0200 (CEST) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 11/32] powerpc/powernv/pci: Introduce __pnv_pci_ioda_msi_setup() Date: Thu, 1 Jul 2021 15:27:29 +0200 Message-Id: <20210701132750.1475580-12-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: xOzwdvAwRkj3XcKIp7M-m8kBC4Y-G7jG X-Proofpoint-GUID: xOzwdvAwRkj3XcKIp7M-m8kBC4Y-G7jG 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 phishscore=0 suspectscore=0 bulkscore=0 mlxlogscore=686 malwarescore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 mlxscore=0 adultscore=0 impostorscore=0 clxscore=1034 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" It will be used as a 'compose_msg' handler of the MSI domain introduced later. Signed-off-by: C=C3=A9dric Le Goater --- arch/powerpc/platforms/powernv/pci-ioda.c | 28 +++++++++++++++++++---- 1 file changed, 23 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/pla= tforms/powernv/pci-ioda.c index 7de464679292..2922674cc934 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -2016,15 +2016,17 @@ bool is_pnv_opal_msi(struct irq_chip *chip) } EXPORT_SYMBOL_GPL(is_pnv_opal_msi); =20 -static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *d= ev, - unsigned int hwirq, unsigned int virq, - unsigned int is_64, struct msi_msg *msg) +static int __pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev = *dev, + unsigned int xive_num, + unsigned int is_64, struct msi_msg *msg) { struct pnv_ioda_pe *pe =3D pnv_ioda_get_pe(dev); - unsigned int xive_num =3D hwirq - phb->msi_base; __be32 data; int rc; =20 + dev_dbg(&dev->dev, "%s: setup %s-bit MSI for vector #%d\n", __func__, + is_64 ? "64" : "32", xive_num); + /* No PE assigned ? bail out ... no MSI for you ! */ if (pe =3D=3D NULL) return -ENXIO; @@ -2072,12 +2074,28 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb = *phb, struct pci_dev *dev, } msg->data =3D be32_to_cpu(data); =20 + return 0; +} + +static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *d= ev, + unsigned int hwirq, unsigned int virq, + unsigned int is_64, struct msi_msg *msg) +{ + struct pnv_ioda_pe *pe =3D pnv_ioda_get_pe(dev); + unsigned int xive_num =3D hwirq - phb->msi_base; + int rc; + + rc =3D __pnv_pci_ioda_msi_setup(phb, dev, xive_num, is_64, msg); + if (rc) + return rc; + + /* P8 only */ pnv_set_msi_irq_chip(phb, virq); =20 pr_devel("%s: %s-bit MSI on hwirq %x (xive #%d)," " address=3D%x_%08x data=3D%x PE# %x\n", pci_name(dev), is_64 ? "64" : "32", hwirq, xive_num, - msg->address_hi, msg->address_lo, data, pe->pe_number); + msg->address_hi, msg->address_lo, msg->data, pe->pe_number); =20 return 0; } --=20 2.31.1