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iommu/amd: Flush iommu tlb in dma_ops_free_addresses 

Instead of setting need_flush, do the flush directly in
dma_ops_free_addresses.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
hifive-unleashed-5.1
Joerg Roedel 2015-12-21 18:20:03 +01:00
parent ebaecb423b
commit d41ab09896
1 changed files with 4 additions and 2 deletions
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6
drivers/iommu/amd_iommu.c
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@ -1648,8 +1648,10 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom,
return; return;
#endif #endif
if ((address >> APERTURE_RANGE_SHIFT) >= dom->next_index) if (address + pages > range->next_bit) {
dom->need_flush = true; domain_flush_tlb(&dom->domain);
domain_flush_complete(&dom->domain);
}
address = (address % APERTURE_RANGE_SIZE) >> PAGE_SHIFT; address = (address % APERTURE_RANGE_SIZE) >> PAGE_SHIFT;