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| author |   Joerg Roedel <jroedel@suse.de> | 2017-08-10 16:31:17 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-08-15 18:23:52 +0200 |
| commit | 8109c2a2f8463852dddd6a1c3fcf262047c0c124 (patch) | |
| tree | f7f822e45c2a0849ce240c486c58bfb0fe0f6ced /include/linux/iova.h | |
| parent | iommu/iova: Add flush counters to Flush-Queue implementation (diff) | |
| download | linux-dev-8109c2a2f8463852dddd6a1c3fcf262047c0c124.tar.xz linux-dev-8109c2a2f8463852dddd6a1c3fcf262047c0c124.zip | |
iommu/iova: Add locking to Flush-Queues
The lock is taken from the same CPU most of the time. But
having it allows to flush the queue also from another CPU if
necessary.
This will be used by a timer to regularily flush any pending
IOVAs from the Flush-Queues.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iova.h')
| -rw-r--r-- | include/linux/iova.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/iova.h b/include/linux/iova.h index 985b8008999e..913a690cd4b0 100644 --- a/include/linux/iova.h +++ b/include/linux/iova.h @@ -60,6 +60,7 @@ struct iova_fq_entry { struct iova_fq { struct iova_fq_entry entries[IOVA_FQ_SIZE]; unsigned head, tail; + spinlock_t lock; }; /* holds all the iova translations for a domain */ |