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[v8,3/8] iommu: introduce an msi cookie

Message ID 1461831323-5480-4-git-send-email-eric.auger@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Eric Auger April 28, 2016, 8:15 a.m. UTC 
This opaque pointer will enable to store information about msi
iommu mappings.

Signed-off-by: Eric Auger <eric.auger@linaro.org>

---
v7 -> v8:
remove spinlock and RB tree

v5 -> v6:
- initialize reserved_binding_list
- use a spinlock instead of a mutex
---
 include/linux/iommu.h | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index ea5d288..cb8d30a 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -91,6 +91,7 @@  struct iommu_domain {
 	struct iommu_domain_geometry geometry;
 	struct iommu_domain_msi_geometry msi_geometry;
 	void *iova_cookie;
+	void *msi_cookie;
 };
 
 enum iommu_cap {