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authorDavid Woodhouse <David.Woodhouse@intel.com>2009-05-10 17:16:06 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-05-10 19:49:52 +0100
commit4c25a2c1b90bf785fc2e2f0f0c74a80b3e070d39 (patch)
tree2784fbbf4d6782db300b92870d2bf6111ef26627 /drivers/pci/dmar.c
parentfa3b6dcd5298db2e7b63c17795c9e5570d3df8d9 (diff)
intel-iommu: Clean up handling of "caching mode" vs. context flushing.
It really doesn't make a lot of sense to have some of the logic to handle caching vs. non-caching mode duplicated in qi_flush_context() and __iommu_flush_context(), while the return value indicates whether the caller should take other action which depends on the same thing. Especially since qi_flush_context() thought it was returning something entirely different anyway. This patch makes qi_flush_context() and __iommu_flush_context() both return void, removes the 'non_present_entry_flush' argument and makes the only call site which _set_ that argument to 1 do the right thing. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/pci/dmar.c')
-rw-r--r--drivers/pci/dmar.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index d3d86b749eee..10a071ba3232 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -723,23 +723,16 @@ void qi_global_iec(struct intel_iommu *iommu)
qi_submit_sync(&desc, iommu);
}
-int qi_flush_context(struct intel_iommu *iommu, u16 did, u16 sid, u8 fm,
- u64 type, int non_present_entry_flush)
+void qi_flush_context(struct intel_iommu *iommu, u16 did, u16 sid, u8 fm,
+ u64 type)
{
struct qi_desc desc;
- if (non_present_entry_flush) {
- if (!cap_caching_mode(iommu->cap))
- return 1;
- else
- did = 0;
- }
-
desc.low = QI_CC_FM(fm) | QI_CC_SID(sid) | QI_CC_DID(did)
| QI_CC_GRAN(type) | QI_CC_TYPE;
desc.high = 0;
- return qi_submit_sync(&desc, iommu);
+ qi_submit_sync(&desc, iommu);
}
int qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr,