@@ -7,9 +7,9 @@
#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
-#include <linux/dma-map-ops.h>
#include <linux/platform_device.h>
#include <linux/platform_data/amd_qdma.h>
#include <linux/regmap.h>
@@ -492,18 +492,9 @@ static int qdma_device_verify(struct qdma_device *qdev)
static int qdma_device_setup(struct qdma_device *qdev)
{
- struct device *dev = &qdev->pdev->dev;
u32 ring_sz = QDMA_DEFAULT_RING_SIZE;
int ret = 0;
- while (dev && get_dma_ops(dev))
- dev = dev->parent;
- if (!dev) {
- qdma_err(qdev, "dma device not found");
- return -EINVAL;
- }
- set_dma_ops(&qdev->pdev->dev, get_dma_ops(dev));
-
ret = qdma_setup_fmap_context(qdev);
if (ret) {
qdma_err(qdev, "Failed setup fmap context");
@@ -548,11 +539,12 @@ static void qdma_free_queue_resources(struct dma_chan *chan)
{
struct qdma_queue *queue = to_qdma_queue(chan);
struct qdma_device *qdev = queue->qdev;
- struct device *dev = qdev->dma_dev.dev;
+ struct qdma_platdata *pdata;
qdma_clear_queue_context(queue);
vchan_free_chan_resources(&queue->vchan);
- dma_free_coherent(dev, queue->ring_size * QDMA_MM_DESC_SIZE,
+ pdata = dev_get_platdata(&qdev->pdev->dev);
+ dma_free_coherent(pdata->dma_dev, queue->ring_size * QDMA_MM_DESC_SIZE,
queue->desc_base, queue->dma_desc_base);
}
@@ -565,6 +557,7 @@ static int qdma_alloc_queue_resources(struct dma_chan *chan)
struct qdma_queue *queue = to_qdma_queue(chan);
struct qdma_device *qdev = queue->qdev;
struct qdma_ctxt_sw_desc desc;
+ struct qdma_platdata *pdata;
size_t size;
int ret;
@@ -572,8 +565,9 @@ static int qdma_alloc_queue_resources(struct dma_chan *chan)
if (ret)
return ret;
+ pdata = dev_get_platdata(&qdev->pdev->dev);
size = queue->ring_size * QDMA_MM_DESC_SIZE;
- queue->desc_base = dma_alloc_coherent(qdev->dma_dev.dev, size,
+ queue->desc_base = dma_alloc_coherent(pdata->dma_dev, size,
&queue->dma_desc_base,
GFP_KERNEL);
if (!queue->desc_base) {
@@ -588,7 +582,7 @@ static int qdma_alloc_queue_resources(struct dma_chan *chan)
if (ret) {
qdma_err(qdev, "Failed to setup SW desc ctxt for %s",
chan->name);
- dma_free_coherent(qdev->dma_dev.dev, size, queue->desc_base,
+ dma_free_coherent(pdata->dma_dev, size, queue->desc_base,
queue->dma_desc_base);
return ret;
}
@@ -948,8 +942,9 @@ static int qdma_init_error_irq(struct qdma_device *qdev)
static int qdmam_alloc_qintr_rings(struct qdma_device *qdev)
{
- u32 ctxt[QDMA_CTXT_REGMAP_LEN];
+ struct qdma_platdata *pdata = dev_get_platdata(&qdev->pdev->dev);
struct device *dev = &qdev->pdev->dev;
+ u32 ctxt[QDMA_CTXT_REGMAP_LEN];
struct qdma_intr_ring *ring;
struct qdma_ctxt_intr intr_ctxt;
u32 vector;
@@ -969,7 +964,8 @@ static int qdmam_alloc_qintr_rings(struct qdma_device *qdev)
ring->msix_id = qdev->err_irq_idx + i + 1;
ring->ridx = i;
ring->color = 1;
- ring->base = dmam_alloc_coherent(dev, QDMA_INTR_RING_SIZE,
+ ring->base = dmam_alloc_coherent(pdata->dma_dev,
+ QDMA_INTR_RING_SIZE,
&ring->dev_base, GFP_KERNEL);
if (!ring->base) {
qdma_err(qdev, "Failed to alloc intr ring %d", i);
@@ -26,11 +26,13 @@ struct dma_slave_map;
* @max_mm_channels: Maximum number of MM DMA channels in each direction
* @device_map: DMA slave map
* @irq_index: The index of first IRQ
+ * @dma_dev: The device pointer for dma operations
*/
struct qdma_platdata {
u32 max_mm_channels;
u32 irq_index;
struct dma_slave_map *device_map;
+ struct device *dma_dev;
};
#endif /* _PLATDATA_AMD_QDMA_H */
The get_dma_ops and set_dma_ops APIs were never for driver to use. Remove these calls from QDMA driver. Instead, pass the DMA device pointer from the qdma_platdata structure. Fixes: 73d5fc92a11c ("dmaengine: amd: qdma: Add AMD QDMA driver") Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> --- drivers/dma/amd/qdma/qdma.c | 28 +++++++++++--------------- include/linux/platform_data/amd_qdma.h | 2 ++ 2 files changed, 14 insertions(+), 16 deletions(-)