Commit 850aae93 authored by Bjorn Helgaas's avatar Bjorn Helgaas
Browse files

Revert "x86/apic/msi: Enable PCI/IMS" 

This reverts commit 6e24c887.

IMS (Interrupt Message Store) support appeared in v6.2, but there are no
users yet.

Remove it for now.  We can add it back when a user comes along.

Link: https://lore.kernel.org/r/20240410221307.2162676-7-helgaas@kernel.org


Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 79f99aac

arch/x86/kernel/apic/msi.c

+0 −5
Original line number Diff line number Diff line
@@ -184,7 +184,6 @@ static int x86_msi_prepare(struct irq_domain *domain, struct device *dev, 
		alloc->type = X86_IRQ_ALLOC_TYPE_PCI_MSI;

		return 0;

	case DOMAIN_BUS_PCI_DEVICE_MSIX:

	case DOMAIN_BUS_PCI_DEVICE_IMS:

		alloc->type = X86_IRQ_ALLOC_TYPE_PCI_MSIX;

		return 0;

	default:
@@ -229,10 +228,6 @@ static bool x86_init_dev_msi_info(struct device *dev, struct irq_domain *domain, 
	case DOMAIN_BUS_PCI_DEVICE_MSI:

	case DOMAIN_BUS_PCI_DEVICE_MSIX:

		break;

	case DOMAIN_BUS_PCI_DEVICE_IMS:

		if (!(pops->supported_flags & MSI_FLAG_PCI_IMS))

			return false;

		break;

	default:

		WARN_ON_ONCE(1);

		return false;