From: "Cédric Le Goater" <clg@kaod.org>
To: linuxppc-dev@lists.ozlabs.org
Cc: "Cédric Le Goater" <clg@kaod.org>
Subject: [PATCH v2 10/32] powerpc/pseries/pci: Add support of MSI domains to PHB hotplug
Date: Thu, 1 Jul 2021 15:27:28 +0200 [thread overview]
Message-ID: <20210701132750.1475580-11-clg@kaod.org> (raw)
In-Reply-To: <20210701132750.1475580-1-clg@kaod.org>
Simply allocate or release the MSI domains when a PHB is inserted in
or removed from the machine.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
arch/powerpc/platforms/pseries/pseries.h | 1 +
arch/powerpc/platforms/pseries/msi.c | 10 ++++++++++
arch/powerpc/platforms/pseries/pci_dlpar.c | 4 ++++
3 files changed, 15 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index d9280262588b..3544778e06d0 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -86,6 +86,7 @@ int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
extern struct pci_controller_ops pseries_pci_controller_ops;
int pseries_msi_allocate_domains(struct pci_controller *phb);
+void pseries_msi_free_domains(struct pci_controller *phb);
unsigned long pseries_memory_block_size(void);
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index f9635b01b2bf..e2127a3f7ebd 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -733,6 +733,16 @@ int pseries_msi_allocate_domains(struct pci_controller *phb)
return __pseries_msi_allocate_domains(phb, count);
}
+void pseries_msi_free_domains(struct pci_controller *phb)
+{
+ if (phb->msi_domain)
+ irq_domain_remove(phb->msi_domain);
+ if (phb->dev_domain)
+ irq_domain_remove(phb->dev_domain);
+ if (phb->fwnode)
+ irq_domain_free_fwnode(phb->fwnode);
+}
+
static void rtas_msi_pci_irq_fixup(struct pci_dev *pdev)
{
/* No LSI -> leave MSIs (if any) configured */
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index a8f9140a24fa..90c9d3531694 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -33,6 +33,8 @@ struct pci_controller *init_phb_dynamic(struct device_node *dn)
pci_devs_phb_init_dynamic(phb);
+ pseries_msi_allocate_domains(phb);
+
/* Create EEH devices for the PHB */
eeh_phb_pe_create(phb);
@@ -74,6 +76,8 @@ int remove_phb_dynamic(struct pci_controller *phb)
}
}
+ pseries_msi_free_domains(phb);
+
/* Remove the PCI bus and unregister the bridge device from sysfs */
phb->bus = NULL;
pci_remove_bus(b);
--
2.31.1
next prev parent reply other threads:[~2021-07-01 13:32 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-01 13:27 [PATCH v2 00/32] powerpc: Add MSI IRQ domains to PCI drivers Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 01/32] powerpc/pseries/pci: Introduce __find_pe_total_msi() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 02/32] powerpc/pseries/pci: Introduce rtas_prepare_msi_irqs() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 03/32] powerpc/xive: Add support for IRQ domain hierarchy Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 04/32] powerpc/xive: Ease debugging of xive_irq_set_affinity() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 05/32] powerpc/pseries/pci: Add MSI domains Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 06/32] powerpc/xive: Drop unmask of MSIs at startup Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 07/32] powerpc/xive: Remove irqd_is_started() check when setting the affinity Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 08/32] powerpc/pseries/pci: Add a domain_free_irqs() handler Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 09/32] powerpc/pseries/pci: Add a msi_free() handler to clear XIVE data Cédric Le Goater
2021-07-01 13:27 ` Cédric Le Goater [this message]
2021-07-01 13:27 ` [PATCH v2 11/32] powerpc/powernv/pci: Introduce __pnv_pci_ioda_msi_setup() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 12/32] powerpc/powernv/pci: Add MSI domains Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 13/32] KVM: PPC: Book3S HV: Use the new IRQ chip to detect passthrough interrupts Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 14/32] KVM: PPC: Book3S HV: XIVE: Change interface of passthrough interrupt routines Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 15/32] KVM: PPC: Book3S HV: XIVE: Fix mapping of passthrough interrupts Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 16/32] powerpc/xics: Remove ICS list Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 17/32] powerpc/xics: Rename the map handler in a check handler Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 18/32] powerpc/xics: Give a name to the default XICS IRQ domain Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 19/32] powerpc/xics: Add debug logging to the set_irq_affinity handlers Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 20/32] powerpc/xics: Add support for IRQ domain hierarchy Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 21/32] powerpc/powernv/pci: Customize the MSI EOI handler to support PHB3 Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 22/32] powerpc/pci: Drop XIVE restriction on MSI domains Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 23/32] powerpc/xics: Drop unmask of MSIs at startup Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 24/32] powerpc/pseries/pci: Drop unused MSI code Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 25/32] powerpc/powernv/pci: " Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 26/32] powerpc/powernv/pci: Adapt is_pnv_opal_msi() to detect passthrough interrupt Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 27/32] powerpc/xics: Fix IRQ migration Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 28/32] powerpc/powernv/pci: Set the IRQ chip data for P8/CXL devices Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 29/32] powerpc/powernv/pci: Rework pnv_opal_pci_msi_eoi() Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 30/32] KVM: PPC: Book3S HV: XICS: Fix mapping of passthrough interrupts Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 31/32] powerpc/xive: Use XIVE domain under xmon and debugfs Cédric Le Goater
2021-07-01 13:27 ` [PATCH v2 32/32] genirq: Improve "hwirq" output in /proc and /sys/ Cédric Le Goater
2021-08-18 13:38 ` [PATCH v2 00/32] powerpc: Add MSI IRQ domains to PCI drivers Michael Ellerman
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