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| author | Nirmoy Das <nirmoy.das@intel.com> | 2023-01-17 18:52:35 +0100 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2023-01-19 14:16:55 +0100 |
| commit | 899d3a3c19ac0e5da013ce34833dccb97d19b5e4 (patch) | |
| tree | 349a6ff4ccd24f2e5088f53b062856063dd8c00c /include | |
| parent | drm/i915: Remove unused variable (diff) | |
| download | linux-899d3a3c19ac0e5da013ce34833dccb97d19b5e4.tar.xz linux-899d3a3c19ac0e5da013ce34833dccb97d19b5e4.zip | |
drm/drm_vma_manager: Add drm_vma_node_allow_once()
Currently there is no easy way for a drm driver to safely check and allow
drm_vma_offset_node for a drm file just once. Allow drm drivers to call
non-refcounted version of drm_vma_node_allow() so that a driver doesn't
need to keep track of each drm_vma_node_allow() to call subsequent
drm_vma_node_revoke() to prevent memory leak.
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Suggested-by: Chris Wilson <chris.p.wilson@intel.com>
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://lore.kernel.org/r/20230117175236.22317-1-nirmoy.das@intel.com
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/drm_vma_manager.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/drm_vma_manager.h b/include/drm/drm_vma_manager.h index 4f8c35206f7c..6c2a2f21dbf0 100644 --- a/include/drm/drm_vma_manager.h +++ b/include/drm/drm_vma_manager.h @@ -74,6 +74,7 @@ void drm_vma_offset_remove(struct drm_vma_offset_manager *mgr, struct drm_vma_offset_node *node); int drm_vma_node_allow(struct drm_vma_offset_node *node, struct drm_file *tag); +int drm_vma_node_allow_once(struct drm_vma_offset_node *node, struct drm_file *tag); void drm_vma_node_revoke(struct drm_vma_offset_node *node, struct drm_file *tag); bool drm_vma_node_is_allowed(struct drm_vma_offset_node *node, |