On some systems, dma address differs from physical one due to
various reasons.
dma_init_coherent_memory is aware of it, it takes both
phys_addr_t and dma_addt_t arguments for memory block.
However, rmem_dma_device_init passes physical address for DMA one.
Fix this, using phys_to_dma(). This assumes the whole buffer has
same offset between physical and dma addresses.
Change-Id: Ic709312941ee4e1a37afb2ea25cbd759eabc009b
Signed-off-by: Vladimir Kondratiev <vladimir.kondrat...@intel.com>
---
drivers/base/dma-coherent.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c
index 640a7e63c453..5371cb19c918 100644
--- a/drivers/base/dma-coherent.c
+++ b/drivers/base/dma-coherent.c
@@ -292,7 +292,8 @@ static int rmem_dma_device_init(struct reserved_mem *rmem,
struct device *dev)
struct dma_coherent_mem *mem = rmem->priv;
if (!mem &&
- !dma_init_coherent_memory(rmem->base, rmem->base, rmem->size,
+ !dma_init_coherent_memory(rmem->base, phys_to_dma(dev, rmem->base),
+ rmem->size,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE,
&mem)) {
pr_err("Reserved memory: failed to init DMA memory pool at %pa,
size %ld MiB\n",
--
2.11.0
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