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authorJoerg Roedel <joerg.roedel@amd.com>2009-09-03 15:08:09 +0200
committerJoerg Roedel <joerg.roedel@amd.com>2009-09-03 15:55:35 +0200
commitb26e81b871bd18184968f0bb3f12945906eadfce (patch)
treeee8b734952e0bfb6386d7edbff797f4192cdb062 /arch/x86/include
parenta345b23b79f1900e7d87c3165182504419180de4 (diff)
x86/amd-iommu: Panic if IOMMU command buffer reset fails
To prevent the driver from doing recursive command buffer resets, just panic when that recursion happens. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/amd_iommu_types.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index c54bc979dc1..e676746a4a3 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -337,6 +337,9 @@ struct amd_iommu {
/* if one, we need to send a completion wait command */
bool need_sync;
+ /* becomes true if a command buffer reset is running */
+ bool reset_in_progress;
+
/* default dma_ops domain for that IOMMU */
struct dma_ops_domain *default_dom;
};