Alexander Lobakin ce230f4f89 page_pool: add DMA-sync-for-CPU inline helper ...

Each driver is responsible for syncing buffers written by HW for CPU
before accessing them. Almost each PP-enabled driver uses the same
pattern, which could be shorthanded into a static inline to make driver
code a little bit more compact.
Introduce a simple helper which performs DMA synchronization for the
size passed from the driver. It can be used even when the pool doesn't
manage DMA-syncs-for-device, just make sure the page has a correct DMA
address set via page_pool_set_dma_addr().

Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

2024-04-24 11:06:25 -07:00

..

helpers.h

page_pool: add DMA-sync-for-CPU inline helper

2024-04-24 11:06:25 -07:00

types.h

page_pool: constify some read-only function arguments

2024-04-24 11:06:25 -07:00