path: root/kernel/irq
diff options
authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-14 18:59:53 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-14 18:59:53 -0800
commit148842c98a24e508aecb929718818fbf4c2a6ff3 (patch)
tree671f6359790e4a3957966d9f1236ee57196bac29 /kernel/irq
parenteb0ea74120e0f14a6d6454109153d1b4ccf210fc (diff)
parent058df195c23403f91acc028e39ca2ad599d0af52 (diff)
Merge tag 'x86-apic-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic updates from Thomas Gleixner: "Yet another large set of x86 interrupt management updates: - Simplification and distangling of the MSI related functionality - Let IO/APIC construct the RTE entries from an MSI message instead of having IO/APIC specific code in the interrupt remapping drivers - Make the retrieval of the parent interrupt domain (vector or remap unit) less hardcoded and use the relevant irqdomain callbacks for selection. - Allow the handling of more than 255 CPUs without a virtualized IOMMU when the hypervisor supports it. This has made been possible by the above modifications and also simplifies the existing workaround in the HyperV specific virtual IOMMU. - Cleanup of the historical timer_works() irq flags related inconsistencies" * tag 'x86-apic-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits) x86/ioapic: Cleanup the timer_works() irqflags mess iommu/hyper-v: Remove I/O-APIC ID check from hyperv_irq_remapping_select() iommu/amd: Fix IOMMU interrupt generation in X2APIC mode iommu/amd: Don't register interrupt remapping irqdomain when IR is disabled iommu/amd: Fix union of bitfields in intcapxt support x86/ioapic: Correct the PCI/ISA trigger type selection x86/ioapic: Use I/O-APIC ID for finding irqdomain, not index x86/hyperv: Enable 15-bit APIC ID if the hypervisor supports it x86/kvm: Enable 15-bit extension when KVM_FEATURE_MSI_EXT_DEST_ID detected iommu/hyper-v: Disable IRQ pseudo-remapping if 15 bit APIC IDs are available x86/apic: Support 15 bits of APIC ID in MSI where available x86/ioapic: Handle Extended Destination ID field in RTE iommu/vt-d: Simplify intel_irq_remapping_select() x86: Kill all traces of irq_remapping_get_irq_domain() x86/ioapic: Use irq_find_matching_fwspec() to find remapping irqdomain x86/hpet: Use irq_find_matching_fwspec() to find remapping irqdomain iommu/hyper-v: Implement select() method on remapping irqdomain iommu/vt-d: Implement select() method on remapping irqdomain iommu/amd: Implement select() method on remapping irqdomain x86/apic: Add select() method on vector irqdomain ...
Diffstat (limited to 'kernel/irq')
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index e4ca69608f3b..e1c0ee725ab7 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -42,7 +42,16 @@ static inline void debugfs_add_domain_dir(struct irq_domain *d) { }
static inline void debugfs_remove_domain_dir(struct irq_domain *d) { }
-const struct fwnode_operations irqchip_fwnode_ops;
+static const char *irqchip_fwnode_get_name(const struct fwnode_handle *fwnode)
+ struct irqchip_fwid *fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
+ return fwid->name;
+const struct fwnode_operations irqchip_fwnode_ops = {
+ .get_name = irqchip_fwnode_get_name,