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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2020-12-08 12:04:30 +0300
committerVinod Koul <vkoul@kernel.org>2020-12-11 18:50:08 +0300
commitadc0f941f9a8fae7e79b249b0abcdbf86017ea53 (patch)
treeba256b2ec07422b78e8915cb6f62bab8b68ae482 /drivers/dma/dmatest.c
parentf082c6df970e6e9aa97af35e826fec824007fbae (diff)
downloadlinux-adc0f941f9a8fae7e79b249b0abcdbf86017ea53.tar.xz
dmaengine: dmatest: Use dmaengine_get_dma_device
By using the dmaengine_get_dma_device() to get the device for dma_api use, the dmatest can support per channel coherency if it is supported by the DMA controller. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20201208090440.31792-11-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/dmatest.c')
-rw-r--r--drivers/dma/dmatest.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index a3a172173e34..f696246f57fd 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -573,6 +573,7 @@ static int dmatest_func(void *data)
struct dmatest_params *params;
struct dma_chan *chan;
struct dma_device *dev;
+ struct device *dma_dev;
unsigned int error_count;
unsigned int failed_tests = 0;
unsigned int total_tests = 0;
@@ -606,6 +607,8 @@ static int dmatest_func(void *data)
params = &info->params;
chan = thread->chan;
dev = chan->device;
+ dma_dev = dmaengine_get_dma_device(chan);
+
src = &thread->src;
dst = &thread->dst;
if (thread->type == DMA_MEMCPY) {
@@ -730,7 +733,7 @@ static int dmatest_func(void *data)
filltime = ktime_add(filltime, diff);
}
- um = dmaengine_get_unmap_data(dev->dev, src->cnt + dst->cnt,
+ um = dmaengine_get_unmap_data(dma_dev, src->cnt + dst->cnt,
GFP_KERNEL);
if (!um) {
failed_tests++;
@@ -745,10 +748,10 @@ static int dmatest_func(void *data)
struct page *pg = virt_to_page(buf);
unsigned long pg_off = offset_in_page(buf);
- um->addr[i] = dma_map_page(dev->dev, pg, pg_off,
+ um->addr[i] = dma_map_page(dma_dev, pg, pg_off,
um->len, DMA_TO_DEVICE);
srcs[i] = um->addr[i] + src->off;
- ret = dma_mapping_error(dev->dev, um->addr[i]);
+ ret = dma_mapping_error(dma_dev, um->addr[i]);
if (ret) {
result("src mapping error", total_tests,
src->off, dst->off, len, ret);
@@ -763,9 +766,9 @@ static int dmatest_func(void *data)
struct page *pg = virt_to_page(buf);
unsigned long pg_off = offset_in_page(buf);
- dsts[i] = dma_map_page(dev->dev, pg, pg_off, um->len,
+ dsts[i] = dma_map_page(dma_dev, pg, pg_off, um->len,
DMA_BIDIRECTIONAL);
- ret = dma_mapping_error(dev->dev, dsts[i]);
+ ret = dma_mapping_error(dma_dev, dsts[i]);
if (ret) {
result("dst mapping error", total_tests,
src->off, dst->off, len, ret);