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 --- drivers/dma/dma-uclass.c | 2 +- drivers/dma/sandbox-dma-test.c | 4 ++-- drivers/dma/ti-edma3.c | 14 +++++++------- drivers/dma/ti/k3-udma.c | 4 ++-- include/dma-uclass.h | 4 ++-- 5 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/dma/dma-uclass.c b/drivers/dma/dma-uclass.c index 70f06f1f09..81dbb4da10 100644 --- 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 aebf3eef96..2b8259a35b 100644 --- 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 53dc4e8ce5..1ad3b92dbf 100644 --- 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 86603d43f1..ab6639b4a1 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -2304,7 +2304,7 @@ 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 */ @@ -2325,7 +2325,7 @@ 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 340437acc1..ea721baae6 100644 --- 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 */