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authorLior Amsalem <alior@marvell.com>2014-08-27 17:52:53 +0400
committerVinod Koul <vinod.koul@intel.com>2014-09-23 18:47:01 +0400
commitba87d13721b6fe4a2479871dc4f77c5bd8db3c32 (patch)
treecfbfdfead1eaac70a3cc9509e5339010e7ca094c /drivers/dma/mv_xor.h
parent0e7488ed01235fdd24ce7f0295dbbea0d45311bb (diff)
downloadlinux-ba87d13721b6fe4a2479871dc4f77c5bd8db3c32.tar.xz
dma: mv_xor: Reduce interrupts by enabling EOD only when needed
This commit unmasks the end-of-chain interrupt and removes the end-of-descriptor command setting on all transactions, except those explicitly flagged with DMA_PREP_INTERRUPT. This allows to raise an interrupt only on chain completion, instead of on each descriptor completion, which reduces interrupt count. Signed-off-by: Lior Amsalem <alior@marvell.com> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/mv_xor.h')
-rw-r--r--drivers/dma/mv_xor.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h
index ae41c31c6ea5..21b0828f9697 100644
--- a/drivers/dma/mv_xor.h
+++ b/drivers/dma/mv_xor.h
@@ -67,7 +67,7 @@
XOR_INT_ERR_WRPROT | XOR_INT_ERR_OWN | \
XOR_INT_ERR_PAR | XOR_INT_ERR_MBUS)
-#define XOR_INTR_MASK_VALUE (XOR_INT_END_OF_DESC | \
+#define XOR_INTR_MASK_VALUE (XOR_INT_END_OF_DESC | XOR_INT_END_OF_CHAIN | \
XOR_INT_STOPPED | XOR_INTR_ERRORS)
#define WINDOW_BASE(w) (0x50 + ((w) << 2))