diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2020-09-25 13:55:59 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-09-29 12:40:58 +0200 |
| commit | 6619ccf1bb1d0ebb071f758111efa83918b216fc (patch) | |
| tree | 783ed423d39f343b7468d7531acff99a3554f120 /drivers/gpu/drm/etnaviv | |
| parent | 01fd30da0474d5528d96a154cb50ce3b0352fd19 (diff) | |
dma-buf: Use struct dma_buf_map in dma_buf_vmap() interfaces
This patch updates dma_buf_vmap() and dma-buf's vmap callback to use
struct dma_buf_map.
The interfaces used to return a buffer address. This address now gets
stored in an instance of the structure that is given as an additional
argument. The functions return an errno code on errors.
Users of the functions are updated accordingly. This is only an interface
change. It is currently expected that dma-buf memory can be accessed with
system memory load/store operations.
v3:
* update fastrpc driver (kernel test robot)
v2:
* always clear map parameter in dma_buf_vmap() (Daniel)
* include dma-buf-heaps and i915 selftests (kernel test robot)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200925115601.23955-3-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/etnaviv')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c index 4aa3426a9ba4..80a9fc143bbb 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c @@ -85,9 +85,15 @@ static void etnaviv_gem_prime_release(struct etnaviv_gem_object *etnaviv_obj) static void *etnaviv_gem_prime_vmap_impl(struct etnaviv_gem_object *etnaviv_obj) { + struct dma_buf_map map; + int ret; + lockdep_assert_held(&etnaviv_obj->lock); - return dma_buf_vmap(etnaviv_obj->base.import_attach->dmabuf); + ret = dma_buf_vmap(etnaviv_obj->base.import_attach->dmabuf, &map); + if (ret) + return NULL; + return map.vaddr; } static int etnaviv_gem_prime_mmap_obj(struct etnaviv_gem_object *etnaviv_obj, |