From nobody Fri May 17 23:32:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1647877918; cv=none; d=zohomail.com; s=zohoarc; b=YcfxApNwZPAZiaFQmHKtrN8G73JlTJhZwftXo9lr+jHCoIsP12DHhcBN16NBwkhJYZ7sB1yBhHPALuh4XGMQalIXlgXH657VF8OsL9gOKuzKCY6mBYwNcvPs9LllE4IevHgmazLs9pB/Me6iHlIR4RMKVKxsrpPMyTb+FxeyzdE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1647877918; h=Content-Transfer-Encoding:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=ch3JUIFaC5U1zGaJfJVww21xjDrf8gh4RT7w5mO1zEc=; b=Y91GtNUuXi5PzVOpykdLyjVE0NwXGm4oUHbFmb3CG9+1jqCOE70Hh6TQDGK1Swgb8qjOqFh6Ly2I+J2lfeJFE/GupWafoKs6Pj8LWafX5g2/WaXyt7jd3sFzKsqR5a6qhAo+kuTxYYF5wGe5XnbY1va8HZX4CbkFJznDdAsEB/g= ARC-Authentication-Results: i=1; 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Mon, 21 Mar 2022 15:34:00 +0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 22LFMJcN36110714 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 21 Mar 2022 15:22:19 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 945C111C052; Mon, 21 Mar 2022 15:33:58 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 49EFC11C04C; Mon, 21 Mar 2022 15:33:58 +0000 (GMT) Received: from localhost.ibm.com (unknown [9.101.4.17]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 21 Mar 2022 15:33:58 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=ch3JUIFaC5U1zGaJfJVww21xjDrf8gh4RT7w5mO1zEc=; b=PvkjjNW04mGHL0Ip9gDTdBb0c3NlGehUj70dPzJ1Q9paJBiA7xFlzfhMYeVIqm+t9jBP 0nejS+wko7YWR2IgoSIOEeTtWnDqSGKw0ycC2wSslWkQrkHl9Yii9rWHtt/sBdj3Arj9 IqyPGUMu+L5TUh+MQ0fWmbsBv7OTtI4nnckZg6yKpYsoN4zH+HpYcIMvmxl4ID/iLcII hH6jLwWp7IRzlWjG5nhQPU6w8ukZ+fUvXqbWyXVp2MsbMJ+NrQ4Ht3+MERKxVxzAqzS0 J6eAj9fg1/wXCBKZ28CnLsFyX2a+xHfQ8468z+4FhCN/XVuMny2oFNUhxGtCIaUCQwK/ PQ== From: Frederic Barrat To: clg@kaod.org, danielhb413@gmail.com, mst@redhat.com, marcel.apfelbaum@gmail.com, qemu-ppc@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 1/2] pcie: Don't try triggering a LSI when not defined Date: Mon, 21 Mar 2022 16:33:56 +0100 Message-Id: <20220321153357.165775-2-fbarrat@linux.ibm.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220321153357.165775-1-fbarrat@linux.ibm.com> References: <20220321153357.165775-1-fbarrat@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: vjjoLgdcqgx7_ZNf2n4G69yxP9Q7uT5L X-Proofpoint-GUID: B5r8XPJoaMQg_zLUhRSnmLJbx3jCJ42C X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.850,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-03-21_06,2022-03-21_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 adultscore=0 mlxlogscore=605 spamscore=0 malwarescore=0 mlxscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2203210098 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=fbarrat@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1647877919878100001 Content-Type: text/plain; charset="utf-8" This patch skips [de]asserting a LSI interrupt if the device doesn't have any LSI defined. Doing so would trigger an assert in pci_irq_handler(). The PCIE root port implementation in qemu requests a LSI (INTA), but a subclass may want to change that behavior since it's a valid configuration. For example on the POWER8/POWER9/POWER10 systems, the root bridge doesn't request any LSI. Signed-off-by: Frederic Barrat --- hw/pci/pcie.c | 8 ++++++-- hw/pci/pcie_aer.c | 4 +++- 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index 67a5d67372..71c5194b80 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -354,7 +354,9 @@ static void hotplug_event_notify(PCIDevice *dev) } else if (msi_enabled(dev)) { msi_notify(dev, pcie_cap_flags_get_vector(dev)); } else { - pci_set_irq(dev, dev->exp.hpev_notified); + if (pci_intx(dev) !=3D -1) { + pci_set_irq(dev, dev->exp.hpev_notified); + } } } =20 @@ -362,7 +364,9 @@ static void hotplug_event_clear(PCIDevice *dev) { hotplug_event_update_event_status(dev); if (!msix_enabled(dev) && !msi_enabled(dev) && !dev->exp.hpev_notified= ) { - pci_irq_deassert(dev); + if (pci_intx(dev) !=3D -1) { + pci_irq_deassert(dev); + } } } =20 diff --git a/hw/pci/pcie_aer.c b/hw/pci/pcie_aer.c index e1a8a88c8c..d936bfca20 100644 --- a/hw/pci/pcie_aer.c +++ b/hw/pci/pcie_aer.c @@ -291,7 +291,9 @@ static void pcie_aer_root_notify(PCIDevice *dev) } else if (msi_enabled(dev)) { msi_notify(dev, pcie_aer_root_get_vector(dev)); } else { - pci_irq_assert(dev); + if (pci_intx(dev) !=3D -1) { + pci_irq_assert(dev); + } } } =20 --=20 2.35.1 From nobody Fri May 17 23:32:54 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1647878273; cv=none; d=zohomail.com; s=zohoarc; b=k/nAHdufOhuwy0j+xrsD8QYrIVCtqvkhe4TVTga3XSlsbLwGXzJDi4jvd3CR8Da44HQsGN+hwIA2VuVahmp+q4mwW3r+3PmDmALoDw5yk2sGjlvANfdd/A6/6SK1U5dFfAZmhyr47ScRI8ZpdcIFjAu2YjjKYBJr2VWNPaMBlho= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1647878273; h=Content-Transfer-Encoding:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=Z+N4Ro+fomzI/YRaHs7Y3py/LM4xJmW6r7WCrzT9nmQ=; 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Mon, 21 Mar 2022 15:34:01 +0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 22LFXxAs34079116 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 21 Mar 2022 15:33:59 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F02BD11C054; Mon, 21 Mar 2022 15:33:58 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A584611C04C; Mon, 21 Mar 2022 15:33:58 +0000 (GMT) Received: from localhost.ibm.com (unknown [9.101.4.17]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 21 Mar 2022 15:33:58 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=Z+N4Ro+fomzI/YRaHs7Y3py/LM4xJmW6r7WCrzT9nmQ=; b=CqJqm7umlqKuCEncwSf7R1O+C/QFScL3hGut47y0o7Uy9J7zEixGefbrTH5gDZgmyHaK D3hNswNXfRjRONKWG2Biy01qoD+t/Pw1mdklzU21TFovPsoC07hjhmqinRfTyof/z1nj oHYFwagWs37sdWuzP6+KFM/zVlNHUTQImkB40DMNqBziR+8DirIn0hmWkbhAGCskZN8T TIXJsjTselZ4kMdr4mx74USbspHqklttKoND962icYatooqHW07BsMh4bT1MVbEgYB9T L8MFHcETi03llXcweVqYO5H+U9T8NFRI420TFV3NuOWdYcRqt9dukoOihfdH4p1V7axA zA== From: Frederic Barrat To: clg@kaod.org, danielhb413@gmail.com, mst@redhat.com, marcel.apfelbaum@gmail.com, qemu-ppc@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 2/2] ppc/pnv: Remove LSI on the PCIE host bridge Date: Mon, 21 Mar 2022 16:33:57 +0100 Message-Id: <20220321153357.165775-3-fbarrat@linux.ibm.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220321153357.165775-1-fbarrat@linux.ibm.com> References: <20220321153357.165775-1-fbarrat@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: LOsQqPtY7JnwOUq5NNmeRnwnAuHviVN4 X-Proofpoint-ORIG-GUID: sQiTU_wnilz2eVIm0qLLLEegXh0gOiP3 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.850,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-03-21_07,2022-03-21_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 mlxlogscore=999 clxscore=1015 phishscore=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 suspectscore=0 impostorscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2203210098 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=fbarrat@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1647878275991100001 Content-Type: text/plain; charset="utf-8" The phb3/phb4/phb5 root ports inherit from the default PCIE root port implementation, which requests a LSI interrupt (#INTA). On real hardware (POWER8/POWER9/POWER10), there is no such LSI. This patch corrects it so that it matches the hardware. As a consequence, the device tree previously generated was bogus, as the root bridge LSI was not properly mapped. On some implementation (powernv9), it was leading to inconsistent interrupt controller (xive) data. With this patch, it is now clean. Signed-off-by: Frederic Barrat Reviewed-by: Daniel Henrique Barboza --- hw/pci-host/pnv_phb3.c | 1 + hw/pci-host/pnv_phb4.c | 1 + 2 files changed, 2 insertions(+) diff --git a/hw/pci-host/pnv_phb3.c b/hw/pci-host/pnv_phb3.c index ac801ac835..0d18c96117 100644 --- a/hw/pci-host/pnv_phb3.c +++ b/hw/pci-host/pnv_phb3.c @@ -1162,6 +1162,7 @@ static void pnv_phb3_root_port_realize(DeviceState *d= ev, Error **errp) error_propagate(errp, local_err); return; } + pci_config_set_interrupt_pin(pci->config, 0); } =20 static void pnv_phb3_root_port_class_init(ObjectClass *klass, void *data) diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c index b301762093..b66b75d4d7 100644 --- a/hw/pci-host/pnv_phb4.c +++ b/hw/pci-host/pnv_phb4.c @@ -1772,6 +1772,7 @@ static void pnv_phb4_root_port_reset(DeviceState *dev) pci_set_word(conf + PCI_PREF_MEMORY_LIMIT, 0xfff1); pci_set_long(conf + PCI_PREF_BASE_UPPER32, 0x1); /* Hack */ pci_set_long(conf + PCI_PREF_LIMIT_UPPER32, 0xffffffff); + pci_config_set_interrupt_pin(conf, 0); } =20 static void pnv_phb4_root_port_realize(DeviceState *dev, Error **errp) --=20 2.35.1