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| author | Cédric Le Goater <clg@kaod.org> | 2021-07-01 15:27:28 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-08-10 23:14:58 +1000 |
| commit | 174db9e7f775ce06fc6949c9abbe758b3eb8171c (patch) | |
| tree | 932b0b5520c37fcbc2526b13a435bffb982dcf7e /arch/powerpc/platforms/pseries/msi.c | |
| parent | 9a014f456881e947bf8cdd8c984a207097e6c096 (diff) | |
| download | linux-174db9e7f775ce06fc6949c9abbe758b3eb8171c.tar.gz linux-174db9e7f775ce06fc6949c9abbe758b3eb8171c.tar.bz2 linux-174db9e7f775ce06fc6949c9abbe758b3eb8171c.zip | |
powerpc/pseries/pci: Add support of MSI domains to PHB hotplug
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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210701132750.1475580-11-clg@kaod.org
Diffstat (limited to 'arch/powerpc/platforms/pseries/msi.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/msi.c | 10 |
1 files changed, 10 insertions, 0 deletions
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 */ |