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| author | Christian König <christian.koenig@amd.com> | 2020-10-08 13:57:32 +0300 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2020-11-30 17:00:45 +0300 |
| commit | c67e62790f5c156705fb162da840c6d89d0af6e0 (patch) | |
| tree | 019349d0d65f0d149288c29f23c89502667c0e86 /include/drm | |
| parent | 18f7608a67fca8b8305b3557e2c00bca54785acd (diff) | |
| download | linux-c67e62790f5c156705fb162da840c6d89d0af6e0.tar.xz | |
drm/prime: split array import functions v4
Mapping the imported pages of a DMA-buf into an userspace process
doesn't work as expected.
But we have reoccurring requests on this approach, so split the
functions for this and document that dma_buf_mmap() needs to be used
instead.
v2: split it into two functions
v3: rebased on latest changes
v4: update commit message a bit
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/403838/
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_prime.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h index 0991a47a1567..54f2c58305d2 100644 --- a/include/drm/drm_prime.h +++ b/include/drm/drm_prime.h @@ -105,8 +105,9 @@ struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); -int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages, - dma_addr_t *addrs, int max_pages); - +int drm_prime_sg_to_page_array(struct sg_table *sgt, struct page **pages, + int max_pages); +int drm_prime_sg_to_dma_addr_array(struct sg_table *sgt, dma_addr_t *addrs, + int max_pages); #endif /* __DRM_PRIME_H__ */ |