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x64, x2apic/intr-remap: code re-structuring, to be used by both DMA and Interrupt remapping

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Allocate the iommu during the parse of DMA remapping hardware
definition structures. And also, introduce routines for device
scope initialization which will be explicitly called during
dma-remapping initialization.

These will be used for enabling interrupt remapping separately from the
existing DMA-remapping enabling sequence.

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>
This commit is contained in:
Suresh Siddha
2008-07-10 11:16:37 -07:00
committed by Ingo Molnar
parent c42d9f3244
commit 1886e8a90a
4 changed files with 88 additions and 23 deletions
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10
drivers/pci/intel-iommu.c
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@ -1665,11 +1665,8 @@ int __init init_dmars(void)
for_each_drhd_unit(drhd) {
if (drhd->ignored)
continue;
iommu = alloc_iommu(drhd);
if (!iommu) {
ret = -ENOMEM;
goto error;
}
iommu = drhd->iommu;
ret = iommu_init_domains(iommu);
if (ret)
@ -2324,6 +2321,9 @@ int __init intel_iommu_init(void)
if (dmar_table_init())
return -ENODEV;
if (dmar_dev_scope_init())
return -ENODEV;
iommu_init_mempool();
dmar_init_reserved_ranges();