diff options
| author | David S. Miller <davem@davemloft.net> | 2008-11-06 22:43:03 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-06 22:43:03 -0800 |
| commit | 9eeda9abd1faf489f3df9a1f557975f4c8650363 (patch) | |
| tree | 3e0a58e25b776cfbee193195460324dccb1886c7 /arch/x86/kernel/amd_iommu.c | |
| parent | 61c9eaf90081cbe6dc4f389e0056bff76eca19ec (diff) | |
| parent | 4bab0ea1d42dd1927af9df6fbf0003fc00617c50 (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/wireless/ath5k/base.c
net/8021q/vlan_core.c
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index a8fd9ebdc8e2..331b318304eb 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -50,7 +50,7 @@ static int dma_ops_unity_map(struct dma_ops_domain *dma_dom, /* returns !0 if the IOMMU is caching non-present entries in its TLB */ static int iommu_has_npcache(struct amd_iommu *iommu) { - return iommu->cap & IOMMU_CAP_NPCACHE; + return iommu->cap & (1UL << IOMMU_CAP_NPCACHE); } /**************************************************************************** @@ -536,6 +536,9 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom, { address >>= PAGE_SHIFT; iommu_area_free(dom->bitmap, address, pages); + + if (address + pages >= dom->next_bit) + dom->need_flush = true; } /**************************************************************************** @@ -992,8 +995,10 @@ static void __unmap_single(struct amd_iommu *iommu, dma_ops_free_addresses(dma_dom, dma_addr, pages); - if (amd_iommu_unmap_flush) + if (amd_iommu_unmap_flush || dma_dom->need_flush) { iommu_flush_pages(iommu, dma_dom->domain.id, dma_addr, size); + dma_dom->need_flush = false; + } } /* |