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x86/MSI: Simplify the way to deal with remapped MSI interrupts

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Simplify the way to deal with remapped MSI interrupts, so we can remove
irq_chip.irq_print_chip later. We simply change the name when the
setup detects that the parent domain is remapping.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Link: http://lkml.kernel.org/r/1428905519-23704-25-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu 2015-04-13 14:11:46 +08:00 committed by Thomas Gleixner
parent 81dabe2e73
commit 68682a2687
1 changed files with 24 additions and 4 deletions
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28
arch/x86/kernel/apic/msi.c
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@ -77,7 +77,6 @@ static struct irq_chip pci_msi_controller = {
.irq_ack = irq_chip_ack_parent,
.irq_set_affinity = msi_domain_set_affinity,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.irq_print_chip = irq_remapping_print_chip,
.irq_compose_msi_msg = irq_msi_compose_msg,
.irq_write_msi_msg = pci_msi_domain_write_msg,
.flags = IRQCHIP_SKIP_SET_WAKE,
@ -143,7 +142,7 @@ static struct msi_domain_ops pci_msi_domain_ops = {
static struct msi_domain_info pci_msi_domain_info = {
.flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX,
MSI_FLAG_PCI_MSIX,
.ops = &pci_msi_domain_ops,
.chip = &pci_msi_controller,
.handler = handle_edge_irq,
@ -162,9 +161,29 @@ void arch_init_msi_domain(struct irq_domain *parent)
}
#ifdef CONFIG_IRQ_REMAP
static struct irq_chip pci_msi_ir_controller = {
.name = "IR-PCI-MSI",
.irq_unmask = pci_msi_unmask_irq,
.irq_mask = pci_msi_mask_irq,
.irq_ack = irq_chip_ack_parent,
.irq_set_affinity = msi_domain_set_affinity,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.irq_write_msi_msg = pci_msi_domain_write_msg,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
static struct msi_domain_info pci_msi_ir_domain_info = {
.flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX,
.ops = &pci_msi_domain_ops,
.chip = &pci_msi_ir_controller,
.handler = handle_edge_irq,
.handler_name = "edge",
};
struct irq_domain *arch_create_msi_irq_domain(struct irq_domain *parent)
{
return msi_create_irq_domain(NULL, &pci_msi_domain_info, parent);
return pci_msi_create_irq_domain(NULL, &pci_msi_ir_domain_info, parent);
}
#endif
@ -325,7 +344,6 @@ static struct irq_chip hpet_msi_controller = {
.irq_ack = irq_chip_ack_parent,
.irq_set_affinity = hpet_msi_set_affinity,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.irq_print_chip = irq_remapping_print_chip,
.irq_compose_msi_msg = irq_msi_compose_msg,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
@ -402,6 +420,8 @@ struct irq_domain *hpet_create_irq_domain(int hpet_id)
parent = irq_remapping_get_ir_irq_domain(&info);
if (parent == NULL)
parent = x86_vector_domain;
else
hpet_msi_controller.name = "IR-HPET-MSI";
return irq_domain_add_hierarchy(parent, 0, 0, NULL, &hpet_domain_ops,
(void *)(long)hpet_id);