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drm: prime: Document gem_prime_mmap 

gem_prime_map is not currently described in the DRM manual, lets document
it.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
hifive-unleashed-5.1
Daniel Thompson 2015-06-19 14:52:29 +01:00 committed by Daniel Vetter
parent afcd950caf
commit ffc5fbdb77
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/drm_prime.c
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@ -309,7 +309,7 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
* Drivers can implement @gem_prime_export and @gem_prime_import in terms of * Drivers can implement @gem_prime_export and @gem_prime_import in terms of
* simpler APIs by using the helper functions @drm_gem_prime_export and * simpler APIs by using the helper functions @drm_gem_prime_export and
* @drm_gem_prime_import. These functions implement dma-buf support in terms of * @drm_gem_prime_import. These functions implement dma-buf support in terms of
* five lower-level driver callbacks: * six lower-level driver callbacks:
* *
* Export callbacks: * Export callbacks:
* *
@ -321,6 +321,8 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
* *
* - @gem_prime_vunmap: vunmap a buffer exported by your driver * - @gem_prime_vunmap: vunmap a buffer exported by your driver
* *
* - @gem_prime_mmap (optional): mmap a buffer exported by your driver
*
* Import callback: * Import callback:
* *
* - @gem_prime_import_sg_table (import): produce a GEM object from another * - @gem_prime_import_sg_table (import): produce a GEM object from another