about mmap dma-buf and sync
tiago.vignatti at intel.com
Mon Aug 24 16:03:59 PDT 2015
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
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
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