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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2012-12-17 15:59:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-17 17:15:13 -0800 |
| commit | 632fd28326c0cc7be9c51ea0d76d8bec39a695e9 (patch) | |
| tree | bfd853fed61e3692aab0bdd327c56e4c9ea7fa8c | |
| parent | 0f34c400914f165b7b3812459be2d77b8aa1f1e4 (diff) | |
| download | op-kernel-dev-632fd28326c0cc7be9c51ea0d76d8bec39a695e9.zip op-kernel-dev-632fd28326c0cc7be9c51ea0d76d8bec39a695e9.tar.gz | |
dmatest: implement two helpers to unmap dma memory
The unmap_src() and unmap_dst() will be used later as well.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/dma/dmatest.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 24225f0..6be893b 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -228,6 +228,20 @@ static void dmatest_callback(void *arg) wake_up_all(done->wait); } +static inline void unmap_src(struct device *dev, dma_addr_t *addr, size_t len, + unsigned int count) +{ + while (count--) + dma_unmap_single(dev, addr[count], len, DMA_TO_DEVICE); +} + +static inline void unmap_dst(struct device *dev, dma_addr_t *addr, size_t len, + unsigned int count) +{ + while (count--) + dma_unmap_single(dev, addr[count], len, DMA_BIDIRECTIONAL); +} + /* * This function repeatedly tests DMA transfers of various lengths and * offsets for a given operation type until it is told to exit by @@ -383,13 +397,8 @@ static int dmatest_func(void *data) } if (!tx) { - for (i = 0; i < src_cnt; i++) - dma_unmap_single(dev->dev, dma_srcs[i], len, - DMA_TO_DEVICE); - for (i = 0; i < dst_cnt; i++) - dma_unmap_single(dev->dev, dma_dsts[i], - test_buf_size, - DMA_BIDIRECTIONAL); + unmap_src(dev->dev, dma_srcs, len, src_cnt); + unmap_dst(dev->dev, dma_dsts, test_buf_size, dst_cnt); pr_warning("%s: #%u: prep error with src_off=0x%x " "dst_off=0x%x len=0x%x\n", thread_name, total_tests - 1, @@ -443,9 +452,7 @@ static int dmatest_func(void *data) } /* Unmap by myself (see DMA_COMPL_SKIP_DEST_UNMAP above) */ - for (i = 0; i < dst_cnt; i++) - dma_unmap_single(dev->dev, dma_dsts[i], test_buf_size, - DMA_BIDIRECTIONAL); + unmap_dst(dev->dev, dma_dsts, test_buf_size, dst_cnt); error_count = 0; |
