evie/android_kernel_oneplus_msm8998
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dmatest: make driver unmap also source buffers by itself

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Make the driver DMA unmap also source buffers by itself
(currently it DMA unmaps only destination buffers) as
a preparation for introducing generic 'ummap' data.

Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2013-10-18 19:35:21 +02:00 • committed by Dan Williams
parent 31d141e3a6
commit d1cab34c03
1 changed files with 5 additions and 5 deletions
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10
drivers/dma/dmatest.c
View file

@ -597,11 +597,10 @@ static int dmatest_func(void *data)
set_user_nice(current, 10); set_user_nice(current, 10);
/* /*
* src buffers are freed by the DMAEngine code with dma_unmap_single() * src and dst buffers are freed by ourselves below
* dst buffers are freed by ourselves below
*/ */
flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT |
| DMA_COMPL_SKIP_DEST_UNMAP | DMA_COMPL_SRC_UNMAP_SINGLE; DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
while (!kthread_should_stop() while (!kthread_should_stop()
&& !(params->iterations && total_tests >= params->iterations)) { && !(params->iterations && total_tests >= params->iterations)) {
@ -750,7 +749,8 @@ static int dmatest_func(void *data)
continue; continue;
} }
/* Unmap by myself (see DMA_COMPL_SKIP_DEST_UNMAP above) */ /* Unmap by myself */
unmap_src(dev->dev, dma_srcs, len, src_cnt);
unmap_dst(dev->dev, dma_dsts, params->buf_size, dst_cnt); unmap_dst(dev->dev, dma_dsts, params->buf_size, dst_cnt);
error_count = 0; error_count = 0;