The memory access to the pages allocated with
SNDRV_DMA_TYPE_CONTINUOUS are basically non-coherent, and it becomes a
problem when a process accesses via mmap.
For the more consistent access, use the device coherent memory, just
by replacing the call pattern in the allocator helpers.
The only
The memory access to the pages allocated with
SNDRV_DMA_TYPE_CONTINUOUS are basically non-coherent, and it becomes a
problem when a process accesses via mmap.
For the more consistent access, use the device coherent memory, just
by replacing the call pattern in the allocator helpers.
The only
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