diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-12-06 12:47:50 -0800 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-12-13 21:06:10 +0100 |
| commit | 8ddbe5943c0b1259b5ddb6dc1729863433fc256c (patch) | |
| tree | 7494416660388eedb08aa4658037ed3e0fa49128 /kernel/dma | |
| parent | 7249c1a52df9967cd23550f3dc24fb6ca43cdc6a (diff) | |
| download | linux-8ddbe5943c0b1259b5ddb6dc1729863433fc256c.tar.bz2 | |
dma-mapping: move dma_cache_sync out of line
This isn't exactly a slow path routine, but it is not super critical
either, and moving it out of line will help to keep the include chain
clean for the following DMA indirection bypass work.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'kernel/dma')
| -rw-r--r-- | kernel/dma/mapping.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index 176ae3e08916..0b18cfbdde95 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -430,3 +430,14 @@ int dma_set_coherent_mask(struct device *dev, u64 mask) } EXPORT_SYMBOL(dma_set_coherent_mask); #endif + +void dma_cache_sync(struct device *dev, void *vaddr, size_t size, + enum dma_data_direction dir) +{ + const struct dma_map_ops *ops = get_dma_ops(dev); + + BUG_ON(!valid_dma_direction(dir)); + if (ops->cache_sync) + ops->cache_sync(dev, vaddr, size, dir); +} +EXPORT_SYMBOL(dma_cache_sync); |