dma: Transfer dma_ops should use DMA address types

DMA operations should function on DMA addresses, not virtual addresses.
Although these are usually the same in U-Boot, it is more correct
to be explicit with our types here.

Signed-off-by: Andrew Davis <afd@ti.com>

diff --git a/drivers/dma/dma-uclass.c b/drivers/dma/dma-uclass.c
index 70f06f1..81dbb4d 100644 (file)
--- a/drivers/dma/dma-uclass.c
+++ b/drivers/dma/dma-uclass.c
@@ -252,7 +252,7 @@ int dma_memcpy(void *dst, void *src, size_t len)
        destination = dma_map_single(dst, len, DMA_FROM_DEVICE);
        source = dma_map_single(src, len, DMA_TO_DEVICE);
 
-       ret = ops->transfer(dev, DMA_MEM_TO_MEM, dst, src, len);
+       ret = ops->transfer(dev, DMA_MEM_TO_MEM, destination, source, len);
 
        /* Clean+Invalidate the areas after, so we can see DMA'd data */
        dma_unmap_single(destination, len, DMA_FROM_DEVICE);

diff --git a/drivers/dma/sandbox-dma-test.c b/drivers/dma/sandbox-dma-test.c
index aebf3ee..2b8259a 100644 (file)
--- a/drivers/dma/sandbox-dma-test.c
+++ b/drivers/dma/sandbox-dma-test.c
@@ -39,9 +39,9 @@ struct sandbox_dma_dev {
 };
 
 static int sandbox_dma_transfer(struct udevice *dev, int direction,
-                               void *dst, void *src, size_t len)
+                               dma_addr_t dst, dma_addr_t src, size_t len)
 {
-       memcpy(dst, src, len);
+       memcpy((void *)dst, (void *)src, len);
 
        return 0;
 }

diff --git a/drivers/dma/ti-edma3.c b/drivers/dma/ti-edma3.c
index 53dc4e8..1ad3b92 100644 (file)
--- a/drivers/dma/ti-edma3.c
+++ b/drivers/dma/ti-edma3.c
@@ -396,7 +396,7 @@ void qedma3_stop(u32 base, struct edma3_channel_config *cfg)
 }
 
 void __edma3_transfer(unsigned long edma3_base_addr, unsigned int edma_slot_num,
-                     void *dst, void *src, size_t len, size_t s_len)
+                     dma_addr_t dst, dma_addr_t src, size_t len, size_t s_len)
 {
        struct edma3_slot_config        slot;
        struct edma3_channel_config     edma_channel;
@@ -484,7 +484,7 @@ void __edma3_transfer(unsigned long edma3_base_addr, unsigned int edma_slot_num,
 }
 
 void __edma3_fill(unsigned long edma3_base_addr, unsigned int edma_slot_num,
-                 void *dst, u8 val, size_t len)
+                 dma_addr_t dst, u8 val, size_t len)
 {
        int xfer_len;
        int max_xfer = EDMA_FILL_BUFFER_SIZE * 65535;
@@ -499,7 +499,7 @@ void __edma3_fill(unsigned long edma3_base_addr, unsigned int edma_slot_num,
                        xfer_len = max_xfer;
 
                __edma3_transfer(edma3_base_addr, edma_slot_num, dst,
-                                edma_fill_buffer, xfer_len,
+                                source, xfer_len,
                                 EDMA_FILL_BUFFER_SIZE);
                len -= xfer_len;
                dst += xfer_len;
@@ -517,7 +517,7 @@ void edma3_transfer(unsigned long edma3_base_addr, unsigned int edma_slot_num,
        dma_addr_t destination = dma_map_single(dst, len, DMA_FROM_DEVICE);
        dma_addr_t source = dma_map_single(src, len, DMA_TO_DEVICE);
 
-       __edma3_transfer(edma3_base_addr, edma_slot_num, dst, src, len, len);
+       __edma3_transfer(edma3_base_addr, edma_slot_num, destination, source, len, len);
 
        /* Clean+Invalidate the areas after, so we can see DMA'd data */
        dma_unmap_single(destination, len, DMA_FROM_DEVICE);
@@ -530,7 +530,7 @@ void edma3_fill(unsigned long edma3_base_addr, unsigned int edma_slot_num,
        /* Clean the area, so no writeback into the RAM races with DMA */
        dma_addr_t destination = dma_map_single(dst, len, DMA_FROM_DEVICE);
 
-       __edma3_fill(edma3_base_addr, edma_slot_num, dst, val, len);
+       __edma3_fill(edma3_base_addr, edma_slot_num, destination, val, len);
 
        /* Clean+Invalidate the area after, so we can see DMA'd data */
        dma_unmap_single(destination, len, DMA_FROM_DEVICE);
@@ -538,8 +538,8 @@ void edma3_fill(unsigned long edma3_base_addr, unsigned int edma_slot_num,
 
 #else
 
-static int ti_edma3_transfer(struct udevice *dev, int direction, void *dst,
-                            void *src, size_t len)
+static int ti_edma3_transfer(struct udevice *dev, int direction,
+                            dma_addr_t dst, dma_addr_t src, size_t len)
 {
        struct ti_edma3_priv *priv = dev_get_priv(dev);
 

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 1a9197b..d92b964 100644 (file)
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -2305,7 +2305,7 @@ err_res_free:
 }
 
 static int udma_transfer(struct udevice *dev, int direction,
-                        void *dst, void *src, size_t len)
+                        dma_addr_t dst, dma_addr_t src, size_t len)
 {
        struct udma_dev *ud = dev_get_priv(dev);
        /* Channel0 is reserved for memcpy */
@@ -2326,7 +2326,7 @@ static int udma_transfer(struct udevice *dev, int direction,
        if (ret)
                return ret;
 
-       udma_prep_dma_memcpy(uc, (dma_addr_t)dst, (dma_addr_t)src, len);
+       udma_prep_dma_memcpy(uc, dst, src, len);
        udma_start(uc);
        udma_poll_completion(uc, &paddr);
        udma_stop(uc);

diff --git a/include/dma-uclass.h b/include/dma-uclass.h
index 340437a..ea721ba 100644 (file)
--- a/include/dma-uclass.h
+++ b/include/dma-uclass.h
@@ -132,8 +132,8 @@ struct dma_ops {
         * @len: Length of the data to be copied (number of bytes).
         * @return zero on success, or -ve error code.
         */
-       int (*transfer)(struct udevice *dev, int direction, void *dst,
-                       void *src, size_t len);
+       int (*transfer)(struct udevice *dev, int direction, dma_addr_t dst,
+                       dma_addr_t src, size_t len);
 };
 
 #endif /* _DMA_UCLASS_H */