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| author | Charan Teja Reddy <charante@codeaurora.org> | 2017-04-20 19:11:20 +0530 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2017-04-25 02:03:54 -0700 |
| commit | ad3b1dcc9393ae156f3714110070cf0afb1ef1c4 (patch) | |
| tree | 1f5a4b7d9f48dbcd8a859a3cd182a11e33628cff /drivers/iommu/iommu-debug.c | |
| parent | 048c70075fecb8f92d923fc5595efa00f2a00082 (diff) | |
iommu: disable smmu stalls on faulty transactions
Disable the SMMU stalls on faulty transactions by terminating it using
the CB.SCTLR register. Faulty transaction on a CB causes the back
pressure on the QSMMU transaction pipe which inturn affect the other
masters using the same SMMU. Pass the DOMAIN_ATTR_CB_STALL_DISABLE flag
to iommu_domain_set_attr api in order to use this feature.
Change-Id: Ib8fa35854ff24e0295d330c5fb79375f58c3e841
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
Diffstat (limited to 'drivers/iommu/iommu-debug.c')
| -rw-r--r-- | drivers/iommu/iommu-debug.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/iommu-debug.c b/drivers/iommu/iommu-debug.c index 22b4934df6df..ffeb47c6b367 100644 --- a/drivers/iommu/iommu-debug.c +++ b/drivers/iommu/iommu-debug.c @@ -72,6 +72,8 @@ static const char *iommu_debug_attr_to_string(enum iommu_attr attr) return "DOMAIN_ATTR_FAST"; case DOMAIN_ATTR_EARLY_MAP: return "DOMAIN_ATTR_EARLY_MAP"; + case DOMAIN_ATTR_CB_STALL_DISABLE: + return "DOMAIN_ATTR_CB_STALL_DISABLE"; default: return "Unknown attr!"; } |