*/
static const struct drm_gem_object_funcs drm_gem_cma_default_funcs = {
- .free = drm_gem_cma_free_object,
- .print_info = drm_gem_cma_print_info,
- .get_sg_table = drm_gem_cma_get_sg_table,
- .vmap = drm_gem_cma_vmap,
- .mmap = drm_gem_cma_mmap,
+ .free = drm_gem_cma_object_free,
+ .print_info = drm_gem_cma_object_print_info,
+ .get_sg_table = drm_gem_cma_object_get_sg_table,
+ .vmap = drm_gem_cma_object_vmap,
+ .mmap = drm_gem_cma_object_mmap,
.vm_ops = &drm_gem_cma_vm_ops,
};
* This function frees the backing memory of the CMA GEM object, cleans up the
* GEM object state and frees the memory used to store the object itself.
* If the buffer is imported and the virtual address is set, it is released.
- * Drivers using the CMA helpers should set this as their
- * &drm_gem_object_funcs.free callback.
*/
void drm_gem_cma_free_object(struct drm_gem_object *gem_obj)
{
* pages for a CMA GEM object
* @obj: GEM object
*
- * This function exports a scatter/gather table by
- * calling the standard DMA mapping API. Drivers using the CMA helpers should
- * set this as their &drm_gem_object_funcs.get_sg_table callback.
+ * This function exports a scatter/gather table by calling the standard
+ * DMA mapping API.
*
* Returns:
* A pointer to the scatter/gather table of pinned pages or NULL on failure.
* This function maps a buffer into the kernel's
* virtual address space. Since the CMA buffers are already mapped into the
* kernel virtual address space this simply returns the cached virtual
- * address. Drivers using the CMA helpers should set this as their DRM
- * driver's &drm_gem_object_funcs.vmap callback.
+ * address.
*
* Returns:
* 0 on success, or a negative error code otherwise.
*
* This function maps a buffer into a userspace process's address space.
* In addition to the usual GEM VMA setup it immediately faults in the entire
- * object instead of using on-demand faulting. Drivers that use the CMA
- * helpers should set this as their &drm_gem_object_funcs.mmap callback.
+ * object instead of using on-demand faulting.
*
* Returns:
* 0 on success or a negative error code on failure.
*/
static const struct drm_gem_object_funcs rcar_du_gem_funcs = {
- .free = drm_gem_cma_free_object,
- .print_info = drm_gem_cma_print_info,
- .get_sg_table = drm_gem_cma_get_sg_table,
- .vmap = drm_gem_cma_vmap,
- .mmap = drm_gem_cma_mmap,
+ .free = drm_gem_cma_object_free,
+ .print_info = drm_gem_cma_object_print_info,
+ .get_sg_table = drm_gem_cma_object_get_sg_table,
+ .vmap = drm_gem_cma_object_vmap,
+ .mmap = drm_gem_cma_object_mmap,
.vm_ops = &drm_gem_cma_vm_ops,
};
static const struct drm_gem_object_funcs vc4_gem_object_funcs = {
.free = vc4_free_object,
.export = vc4_prime_export,
- .get_sg_table = drm_gem_cma_get_sg_table,
- .vmap = drm_gem_cma_vmap,
+ .get_sg_table = drm_gem_cma_object_get_sg_table,
+ .vmap = drm_gem_cma_object_vmap,
.mmap = vc4_gem_object_mmap,
.vm_ops = &vc4_vm_ops,
};
int drm_gem_cma_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
/*
+ * GEM object functions
+ */
+
+/**
+ * drm_gem_cma_object_free - GEM object function for drm_gem_cma_free_object()
+ * @obj: GEM object to free
+ *
+ * This function wraps drm_gem_cma_free_object(). Drivers that employ the CMA helpers
+ * should use it as their &drm_gem_object_funcs.free handler.
+ */
+static inline void drm_gem_cma_object_free(struct drm_gem_object *obj)
+{
+ drm_gem_cma_free_object(obj);
+}
+
+/**
+ * drm_gem_cma_object_print_info() - Print &drm_gem_cma_object info for debugfs
+ * @p: DRM printer
+ * @indent: Tab indentation level
+ * @obj: GEM object
+ *
+ * This function wraps drm_gem_cma_print_info(). Drivers that employ the CMA helpers
+ * should use this function as their &drm_gem_object_funcs.print_info handler.
+ */
+static inline void drm_gem_cma_object_print_info(struct drm_printer *p, unsigned int indent,
+ const struct drm_gem_object *obj)
+{
+ drm_gem_cma_print_info(p, indent, obj);
+}
+
+/**
+ * drm_gem_cma_object_get_sg_table - GEM object function for drm_gem_cma_get_sg_table()
+ * @obj: GEM object
+ *
+ * This function wraps drm_gem_cma_get_sg_table(). Drivers that employ the CMA helpers should
+ * use it as their &drm_gem_object_funcs.get_sg_table handler.
+ *
+ * Returns:
+ * A pointer to the scatter/gather table of pinned pages or NULL on failure.
+ */
+static inline struct sg_table *drm_gem_cma_object_get_sg_table(struct drm_gem_object *obj)
+{
+ return drm_gem_cma_get_sg_table(obj);
+}
+
+/*
+ * drm_gem_cma_object_vmap - GEM object function for drm_gem_cma_vmap()
+ * @obj: GEM object
+ * @map: Returns the kernel virtual address of the CMA GEM object's backing store.
+ *
+ * This function wraps drm_gem_cma_vmap(). Drivers that employ the CMA helpers should
+ * use it as their &drm_gem_object_funcs.vmap handler.
+ *
+ * Returns:
+ * 0 on success or a negative error code on failure.
+ */
+static inline int drm_gem_cma_object_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+{
+ return drm_gem_cma_vmap(obj, map);
+}
+
+/**
+ * drm_gem_cma_object_mmap - GEM object function for drm_gem_cma_mmap()
+ * @obj: GEM object
+ * @vma: VMA for the area to be mapped
+ *
+ * This function wraps drm_gem_cma_mmap(). Drivers that employ the cma helpers should
+ * use it as their &drm_gem_object_funcs.mmap handler.
+ *
+ * Returns:
+ * 0 on success or a negative error code on failure.
+ */
+static inline int drm_gem_cma_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
+{
+ return drm_gem_cma_mmap(obj, vma);
+}
+
+/*
* Driver ops
*/