diff options
| author | David Woodhouse <dwmw@amazon.co.uk> | 2020-10-24 22:35:28 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-10-28 20:26:28 +0100 |
| commit | b643128b917ca8f1c8b1e14af64ebdc81147b2d1 (patch) | |
| tree | 73f60f61e7ba60f41a21d5d5c2176e88f2d7cbe8 /arch/x86/kernel/apic/io_apic.c | |
| parent | c2a5881c28e5bb4cb901029423a1c7068c0afa2d (diff) | |
| download | linux-b643128b917ca8f1c8b1e14af64ebdc81147b2d1.tar.bz2 | |
x86/ioapic: Use irq_find_matching_fwspec() to find remapping irqdomain
All possible parent domains have a select method now. Make use of it.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201024213535.443185-29-dwmw2@infradead.org
Diffstat (limited to 'arch/x86/kernel/apic/io_apic.c')
| -rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index ea983da1a57f..443d2c9086b9 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -2320,36 +2320,37 @@ out: static int mp_irqdomain_create(int ioapic) { - struct irq_alloc_info info; struct irq_domain *parent; int hwirqs = mp_ioapic_pin_count(ioapic); struct ioapic *ip = &ioapics[ioapic]; struct ioapic_domain_cfg *cfg = &ip->irqdomain_cfg; struct mp_ioapic_gsi *gsi_cfg = mp_ioapic_gsi_routing(ioapic); struct fwnode_handle *fn; - char *name = "IO-APIC"; + struct irq_fwspec fwspec; if (cfg->type == IOAPIC_DOMAIN_INVALID) return 0; - init_irq_alloc_info(&info, NULL); - info.type = X86_IRQ_ALLOC_TYPE_IOAPIC_GET_PARENT; - info.devid = mpc_ioapic_id(ioapic); - parent = irq_remapping_get_irq_domain(&info); - if (!parent) - parent = x86_vector_domain; - else - name = "IO-APIC-IR"; - /* Handle device tree enumerated APICs proper */ if (cfg->dev) { fn = of_node_to_fwnode(cfg->dev); } else { - fn = irq_domain_alloc_named_id_fwnode(name, ioapic); + fn = irq_domain_alloc_named_id_fwnode("IO-APIC", ioapic); if (!fn) return -ENOMEM; } + fwspec.fwnode = fn; + fwspec.param_count = 1; + fwspec.param[0] = ioapic; + + parent = irq_find_matching_fwspec(&fwspec, DOMAIN_BUS_ANY); + if (!parent) { + if (!cfg->dev) + irq_domain_free_fwnode(fn); + return -ENODEV; + } + ip->irqdomain = irq_domain_create_linear(fn, hwirqs, cfg->ops, (void *)(long)ioapic); |