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iommu_gas_remove(): consolidate places where decision is made to keep the entry

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(cherry picked from commit c0047e7c356953d138194ff71cc510ffe85425f0)
This commit is contained in:
Konstantin Belousov 2023-12-23 00:41:19 +02:00
parent 8019d103e0
commit aaa4654adc
1 changed files with 1 additions and 2 deletions
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3
sys/dev/iommu/iommu_gas.c
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@ -693,6 +693,7 @@ iommu_gas_remove_unmap(struct iommu_domain *domain,
IOMMU_DOMAIN_ASSERT_LOCKED(domain);
if ((entry->flags & (IOMMU_MAP_ENTRY_UNMAPPED |
IOMMU_MAP_ENTRY_RMRR |
IOMMU_MAP_ENTRY_REMOVING)) != 0)
return;
MPASS((entry->flags & IOMMU_MAP_ENTRY_PLACE) == 0);
@ -720,8 +721,6 @@ iommu_gas_remove_locked(struct iommu_domain *domain,
KASSERT(start <= entry->start,
("iommu_gas_remove entry (%#jx, %#jx) start %#jx",
entry->start, entry->end, start));
if ((entry->flags & IOMMU_MAP_ENTRY_RMRR) != 0)
continue;
iommu_gas_remove_unmap(domain, entry, gc);
}
if (iommu_gas_remove_clip_right(domain, end, entry, *r2)) {