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| author | Joerg Roedel <jroedel@suse.de> | 2017-08-10 15:49:44 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-08-15 18:23:51 +0200 |
| commit | 1928210107edd4fa786199fef6b875d3af3bef88 (patch) | |
| tree | b9fd3aecab10c1d0968e8e49ff69ef30e0b4b938 /include/linux/iova.h | |
| parent | 42f87e71c3df12d8f29ec1bb7b47772ffaeaf1ee (diff) | |
| download | lwn-1928210107edd4fa786199fef6b875d3af3bef88.tar.gz lwn-1928210107edd4fa786199fef6b875d3af3bef88.zip | |
iommu/iova: Implement Flush-Queue ring buffer
Add a function to add entries to the Flush-Queue ring
buffer. If the buffer is full, call the flush-callback and
free the entries.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iova.h')
| -rw-r--r-- | include/linux/iova.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/iova.h b/include/linux/iova.h index 8aa10896150e..1ae85248ec50 100644 --- a/include/linux/iova.h +++ b/include/linux/iova.h @@ -127,6 +127,9 @@ struct iova *alloc_iova(struct iova_domain *iovad, unsigned long size, bool size_aligned); void free_iova_fast(struct iova_domain *iovad, unsigned long pfn, unsigned long size); +void queue_iova(struct iova_domain *iovad, + unsigned long pfn, unsigned long pages, + unsigned long data); unsigned long alloc_iova_fast(struct iova_domain *iovad, unsigned long size, unsigned long limit_pfn); struct iova *reserve_iova(struct iova_domain *iovad, unsigned long pfn_lo, @@ -182,6 +185,12 @@ static inline void free_iova_fast(struct iova_domain *iovad, { } +static inline void queue_iova(struct iova_domain *iovad, + unsigned long pfn, unsigned long pages, + unsigned long data) +{ +} + static inline unsigned long alloc_iova_fast(struct iova_domain *iovad, unsigned long size, unsigned long limit_pfn) |