intr-remap: generic support for remapping HPET MSIs
Generic support for remapping HPET MSI's by parsing the HPET timer block
device scope in the ACPI DRHD tables. This is needed for platforms
supporting interrupt-remapping and MSI capable HPET timer block.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Jay Fenlason <fenlason@redhat.com>
LKML-Reference: <20090804190729.477649000@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 4a2b162..69a6fba 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -126,7 +126,9 @@
extern int irq_remapped(int irq);
extern struct intel_iommu *map_dev_to_ir(struct pci_dev *dev);
extern struct intel_iommu *map_ioapic_to_ir(int apic);
+extern struct intel_iommu *map_hpet_to_ir(u8 id);
extern int set_ioapic_sid(struct irte *irte, int apic);
+extern int set_hpet_sid(struct irte *irte, u8 id);
extern int set_msi_sid(struct irte *irte, struct pci_dev *dev);
#else
static inline int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
@@ -158,10 +160,18 @@
{
return NULL;
}
+static inline struct intel_iommu *map_hpet_to_ir(unsigned int hpet_id)
+{
+ return NULL;
+}
static inline int set_ioapic_sid(struct irte *irte, int apic)
{
return 0;
}
+static inline int set_hpet_sid(struct irte *irte, u8 id)
+{
+ return -1;
+}
static inline int set_msi_sid(struct irte *irte, struct pci_dev *dev)
{
return 0;