dmatest: make driver unmap also source buffers by itself (d1cab34c) · Commits · 戴 / test

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>

drivers/dma/dmatest.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -597,11 +597,10 @@ static int dmatest_func(void *data)
		set_user_nice(current, 10);

		/*
		* src buffers are freed by the DMAEngine code with dma_unmap_single()
		* dst buffers are freed by ourselves below
		* src and dst buffers are freed by ourselves below
		*/
		flags = DMA_CTRL_ACK \| DMA_PREP_INTERRUPT
		\| DMA_COMPL_SKIP_DEST_UNMAP \| DMA_COMPL_SRC_UNMAP_SINGLE;
		flags = DMA_CTRL_ACK \| DMA_PREP_INTERRUPT \|
		DMA_COMPL_SKIP_SRC_UNMAP \| DMA_COMPL_SKIP_DEST_UNMAP;

		while (!kthread_should_stop()
		&& !(params->iterations && total_tests >= params->iterations)) {
		@@ -750,7 +749,8 @@ static int dmatest_func(void *data)
		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);

		error_count = 0;

Admin message