Feature #12183
Want new IPD 13 DMA Cookie APIs
Start date:
Due date:
% Done:
100%
Estimated time:
Difficulty:
Medium
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Description
In IPD 13 a series of new APIs are suggested for DMA cookies to make the APIs easier and safer to use. This change implements the described APIs. This includes:
- Introduc four new functions: ddi_dma_cookie_iter(), ddi_dma_cookie_get(), ddi_dma_cookie_one(), and ddi_dma_ncookies().
- Allowing ddi_dma_addr_bind_handle(), ddi_dma_buf_bind_handle(), and ddi_dma_getwin(), to receive NULL arguments for the cookie-related pointers.
- Adding additional checking around the correctness of ddi_dma_nextcookie().