diff options
| author | Dave Airlie <airlied@redhat.com> | 2012-05-20 18:31:16 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-05-23 11:46:03 +0200 |
| commit | 0ff926c7d4f06f9703226dc09acad17e86f169d6 (patch) | |
| tree | c0f4036c17f0fe5944ca56ef519774f0f9b3ad45 /drivers/gpu/drm/drm_gem.c | |
| parent | drm/prime: introduce sg->pages/addr arrays helper (diff) | |
| download | linux-0ff926c7d4f06f9703226dc09acad17e86f169d6.tar.xz linux-0ff926c7d4f06f9703226dc09acad17e86f169d6.zip | |
drm/prime: add exported buffers to current fprivs imported buffer list (v2)
If userspace attempts to import a buffer it exported on the same device,
we need to return the same GEM handle for it, not a new handle pointing
at the same GEM object.
v2: move removals into a single fn, no need to set to NULL. (Chris Wilson)
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gem.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 72ba0757feaa..d58e69da1fb5 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -201,6 +201,19 @@ free: } EXPORT_SYMBOL(drm_gem_object_alloc); +static void +drm_gem_remove_prime_handles(struct drm_gem_object *obj, struct drm_file *filp) +{ + if (obj->import_attach) { + drm_prime_remove_imported_buf_handle(&filp->prime, + obj->import_attach->dmabuf); + } + if (obj->export_dma_buf) { + drm_prime_remove_imported_buf_handle(&filp->prime, + obj->export_dma_buf); + } +} + /** * Removes the mapping from handle to filp for this object. */ @@ -233,9 +246,7 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle) idr_remove(&filp->object_idr, handle); spin_unlock(&filp->table_lock); - if (obj->import_attach) - drm_prime_remove_imported_buf_handle(&filp->prime, - obj->import_attach->dmabuf); + drm_gem_remove_prime_handles(obj, filp); if (dev->driver->gem_close_object) dev->driver->gem_close_object(obj, filp); @@ -530,9 +541,7 @@ drm_gem_object_release_handle(int id, void *ptr, void *data) struct drm_gem_object *obj = ptr; struct drm_device *dev = obj->dev; - if (obj->import_attach) - drm_prime_remove_imported_buf_handle(&file_priv->prime, - obj->import_attach->dmabuf); + drm_gem_remove_prime_handles(obj, file_priv); if (dev->driver->gem_close_object) dev->driver->gem_close_object(obj, file_priv); |