On 08/24/2015 03:01 PM, Tiago Vignatti wrote:
yup, I think so. So IIUC the main changes needed for the drivers
implement 2D sync lies in the dma_buf_sync_2d structure only. I.e.
there's nothing really to be changed in the common code, right?
Do we have any special requirements in how we want pass the sync
information to the drivers? I was thinking to push the whole
responsibility for them, something like:
+int dma_buf_begin_cpu_access(struct dma_buf *dma_buf, size_t stride_bytes,
+ size_t bytes_per_pixel, size_t num_regions,
+ struct dma_buf_sync_region regions[], enum
dma_data_direction dir);
Daniel Vetter mentioned about dma-buf design that should not track
metadata but I haven't read anything about it, so do you think this
looks alright?
Tiago
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