diff options
Diffstat (limited to 'drivers/gpu/drm/panfrost/panfrost_gem.h')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gem.h | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.h b/drivers/gpu/drm/panfrost/panfrost_gem.h index 4b17e7308764..ca1bc9019600 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.h +++ b/drivers/gpu/drm/panfrost/panfrost_gem.h @@ -13,23 +13,46 @@ struct panfrost_gem_object { struct drm_gem_shmem_object base; struct sg_table *sgts; - struct panfrost_mmu *mmu; - struct drm_mm_node node; - bool is_mapped :1; + /* + * Use a list for now. If searching a mapping ever becomes the + * bottleneck, we should consider using an RB-tree, or even better, + * let the core store drm_gem_object_mapping entries (where we + * could place driver specific data) instead of drm_gem_object ones + * in its drm_file->object_idr table. + * + * struct drm_gem_object_mapping { + * struct drm_gem_object *obj; + * void *driver_priv; + * }; + */ + struct { + struct list_head list; + struct mutex lock; + } mappings; + bool noexec :1; bool is_heap :1; }; +struct panfrost_gem_mapping { + struct list_head node; + struct kref refcount; + struct panfrost_gem_object *obj; + struct drm_mm_node mmnode; + struct panfrost_mmu *mmu; + bool active :1; +}; + static inline struct panfrost_gem_object *to_panfrost_bo(struct drm_gem_object *obj) { return container_of(to_drm_gem_shmem_obj(obj), struct panfrost_gem_object, base); } -static inline -struct panfrost_gem_object *drm_mm_node_to_panfrost_bo(struct drm_mm_node *node) +static inline struct panfrost_gem_mapping * +drm_mm_node_to_panfrost_mapping(struct drm_mm_node *node) { - return container_of(node, struct panfrost_gem_object, node); + return container_of(node, struct panfrost_gem_mapping, mmnode); } struct drm_gem_object *panfrost_gem_create_object(struct drm_device *dev, size_t size); @@ -49,6 +72,12 @@ int panfrost_gem_open(struct drm_gem_object *obj, struct drm_file *file_priv); void panfrost_gem_close(struct drm_gem_object *obj, struct drm_file *file_priv); +struct panfrost_gem_mapping * +panfrost_gem_mapping_get(struct panfrost_gem_object *bo, + struct panfrost_file_priv *priv); +void panfrost_gem_mapping_put(struct panfrost_gem_mapping *mapping); +void panfrost_gem_teardown_mappings(struct panfrost_gem_object *bo); + void panfrost_gem_shrinker_init(struct drm_device *dev); void panfrost_gem_shrinker_cleanup(struct drm_device *dev); |