Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "The irq departement delivers:

   - Rework the irqdomain core infrastructure to accomodate ACPI based
     systems.  This is required to support ARM64 without creating
     artificial device tree nodes.

   - Sanitize the ACPI based ARM GIC initialization by making use of the
     new firmware independent irqdomain core

   - Further improvements to the generic MSI management

   - Generalize the irq migration on CPU hotplug

   - Improvements to the threaded interrupt infrastructure

   - Allow the migration of "chained" low level interrupt handlers

   - Allow optional force masking of interrupts in disable_irq[_nosysnc]

   - Support for two new interrupt chips - Sigh!

   - A larger set of errata fixes for ARM gicv3

   - The usual pile of fixes, updates, improvements and cleanups all
     over the place"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
  Document that IRQ_NONE should be returned when IRQ not actually handled
  PCI/MSI: Allow the MSI domain to be device-specific
  PCI: Add per-device MSI domain hook
  of/irq: Use the msi-map property to provide device-specific MSI domain
  of/irq: Split of_msi_map_rid to reuse msi-map lookup
  irqchip/gic-v3-its: Parse new version of msi-parent property
  PCI/MSI: Use of_msi_get_domain instead of open-coded "msi-parent" parsing
  of/irq: Use of_msi_get_domain instead of open-coded "msi-parent" parsing
  of/irq: Add support code for multi-parent version of "msi-parent"
  irqchip/gic-v3-its: Add handling of PCI requester id.
  PCI/MSI: Add helper function pci_msi_domain_get_msi_rid().
  of/irq: Add new function of_msi_map_rid()
  Docs: dt: Add PCI MSI map bindings
  irqchip/gic-v2m: Add support for multiple MSI frames
  irqchip/gic-v3: Fix translation of LPIs after conversion to irq_fwspec
  irqchip/mxs: Add Alphascale ASM9260 support
  irqchip/mxs: Prepare driver for hardware with different offsets
  irqchip/mxs: Panic if ioremap or domain creation fails
  irqdomain: Documentation updates
  irqdomain/msi: Use fwnode instead of of_node
  ...

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 6ffd91438560..574450c257a4 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -23,6 +23,7 @@
 
 #define MIDR_CORTEX_A53 MIDR_CPU_PART(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53)
 #define MIDR_CORTEX_A57 MIDR_CPU_PART(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57)
+#define MIDR_THUNDERX	MIDR_CPU_PART(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
 
 #define CPU_MODEL_MASK (MIDR_IMPLEMENTOR_MASK | MIDR_PARTNUM_MASK | \
 			MIDR_ARCHITECTURE_MASK)
@@ -82,6 +83,14 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 		MIDR_RANGE(MIDR_CORTEX_A53, 0x00, 0x04),
 	},
 #endif
+#ifdef CONFIG_CAVIUM_ERRATUM_23154
+	{
+	/* Cavium ThunderX, pass 1.x */
+		.desc = "Cavium erratum 23154",
+		.capability = ARM64_WORKAROUND_CAVIUM_23154,
+		MIDR_RANGE(MIDR_THUNDERX, 0x00, 0x01),
+	},
+#endif
 	{
 	}
 };