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>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/pci/intr_remapping.h b/drivers/pci/intr_remapping.h
index 63a263c18415..5662fecfee60 100644
--- a/drivers/pci/intr_remapping.h
+++ b/drivers/pci/intr_remapping.h
@@ -7,4 +7,11 @@ struct ioapic_scope {
         unsigned int devfn;     /* PCI devfn number */
 };
 
+struct hpet_scope {
+        struct intel_iommu *iommu;
+        u8 id;
+        unsigned int bus;
+        unsigned int devfn;
+};
+
 #define IR_X2APIC_MODE(mode) (mode ? (1 << 11) : 0)