diff options
Diffstat (limited to 'drivers/gpu/drm/panfrost/panfrost_gem.h')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gem.h | 64 |
1 files changed, 62 insertions, 2 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.h b/drivers/gpu/drm/panfrost/panfrost_gem.h index 6dbcaba020fc..b3517ff9630c 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.h +++ b/drivers/gpu/drm/panfrost/panfrost_gem.h @@ -7,11 +7,46 @@ #include <drm/drm_gem_shmem_helper.h> #include <drm/drm_mm.h> +struct panfrost_mmu; + struct panfrost_gem_object { struct drm_gem_shmem_object base; + struct sg_table *sgts; + + /* + * 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; + + /* + * Count the number of jobs referencing this BO so we don't let the + * shrinker reclaim this object prematurely. + */ + atomic_t gpu_usecount; - struct drm_mm_node node; - bool is_mapped; + 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 @@ -20,6 +55,12 @@ 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_mapping * +drm_mm_node_to_panfrost_mapping(struct drm_mm_node *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); struct drm_gem_object * @@ -27,4 +68,23 @@ panfrost_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sgt); +struct panfrost_gem_object * +panfrost_gem_create_with_handle(struct drm_file *file_priv, + struct drm_device *dev, size_t size, + u32 flags, + uint32_t *handle); + +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); + #endif /* __PANFROST_GEM_H__ */ |
