summaryrefslogtreecommitdiffstats
path: root/arch/arc
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2018-12-06 22:39:32 +0100
committerChristoph Hellwig <hch@lst.de>2018-12-13 21:06:18 +0100
commit356da6d0cde3323236977fce54c1f9612a742036 (patch)
tree87ad8176833266fbaa038780d67aebcc490d0d64 /arch/arc
parentvmd: use the proper dma_* APIs instead of direct methods calls (diff)
downloadlinux-356da6d0cde3323236977fce54c1f9612a742036.tar.xz
linux-356da6d0cde3323236977fce54c1f9612a742036.zip
dma-mapping: bypass indirect calls for dma-direct
Avoid expensive indirect calls in the fast path DMA mapping operations by directly calling the dma_direct_* ops if we are using the directly mapped DMA operations. 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 'arch/arc')
-rw-r--r--arch/arc/mm/cache.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index f2701c13a66b..e188bb3ede53 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -1280,7 +1280,7 @@ void __init arc_cache_init_master(void)
/*
* In case of IOC (say IOC+SLC case), pointers above could still be set
* but end up not being relevant as the first function in chain is not
- * called at all for @dma_direct_ops
+ * called at all for devices using coherent DMA.
* arch_sync_dma_for_cpu() -> dma_cache_*() -> __dma_cache_*()
*/
}