From: Joerg Roedel <jroe...@suse.de>
We don't need to do an expensive search for domain-ids
anymore, as we keep track of per-iommu domain-ids.
Signed-off-by: Joerg Roedel <jroe...@suse.de>
---
drivers/iommu/intel-iommu.c | 15 +++------------
1 file changed, 3 insertions(+), 12 deletions(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index c46afb6..ae2343c 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -4811,7 +4811,7 @@ static size_t intel_iommu_unmap(struct iommu_domain
*domain,
struct intel_iommu *iommu;
unsigned long start_pfn, last_pfn;
unsigned int npages;
- int iommu_id, num, ndomains, level = 0;
+ int iommu_id, level = 0;
/* Cope with horrid API which requires us to unmap more than the
size argument if it happens to be a large-page mapping. */
@@ -4831,17 +4831,8 @@ static size_t intel_iommu_unmap(struct iommu_domain
*domain,
for_each_domain_iommu(iommu_id, dmar_domain) {
iommu = g_iommus[iommu_id];
- /*
- * find bit position of dmar_domain
- */
- ndomains = cap_ndoms(iommu->cap);
- for_each_set_bit(num, iommu->domain_ids, ndomains) {
- if (get_iommu_domain(iommu, num) == dmar_domain)
- iommu_flush_iotlb_psi(iommu, dmar_domain,
- start_pfn, npages,
- !freelist, 0);
- }
-
+ iommu_flush_iotlb_psi(g_iommus[iommu_id], dmar_domain,
+ start_pfn, npages, !freelist, 0);
}
dma_free_pagelist(freelist);
--
1.9.1
--
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