x64, x2apic/intr-remap: fix the need for sequential array allocation of iommus

Clean up the intel-iommu code related to deferred iommu flush logic. There is
no need to allocate all the iommu's as a sequential array.

This will be used later in the interrupt-remapping patch series to
allocate iommu much early and individually for each device remapping
hardware unit.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: akpm@linux-foundation.org
Cc: arjan@linux.intel.com
Cc: andi@firstfloor.org
Cc: ebiederm@xmission.com
Cc: jbarnes@virtuousgeek.org
Cc: steiner@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/pci/intel-iommu.h b/drivers/pci/intel-iommu.h
index 9e5e98c76c05..75c63f65b3f5 100644
--- a/drivers/pci/intel-iommu.h
+++ b/drivers/pci/intel-iommu.h
@@ -182,6 +182,7 @@ struct intel_iommu {
         int             seg;
         u32             gcmd; /* Holds TE, EAFL. Don't need SRTP, SFL, WBF */
         spinlock_t      register_lock; /* protect register handling */
+        int             seq_id; /* sequence id of the iommu */
 
 #ifdef CONFIG_DMAR
         unsigned long   *domain_ids; /* bitmap of domains */
@@ -198,8 +199,7 @@ struct intel_iommu {
 
 extern struct dmar_drhd_unit * dmar_find_matched_drhd_unit(struct pci_dev *dev);
 
-extern struct intel_iommu *alloc_iommu(struct intel_iommu *iommu,
-                                       struct dmar_drhd_unit *drhd);
+extern struct intel_iommu *alloc_iommu(struct dmar_drhd_unit *drhd);
 extern void free_iommu(struct intel_iommu *iommu);
 
 #endif