6f646095ec
Add helper to display fb's which can be used directly in drm_info_list:
static struct drm_info_list foo_debugfs_list[] = {
...
{ "fb", drm_fb_cma_debugfs_show, 0 },
};
to display information about CMA fb objects, as well as a
drm_gem_cma_describe() which can be used if the driver bothers to keep
a list of CMA GEM objects.
Signed-off-by: Rob Clark <robdclark@gmail.com>
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
#ifndef __DRM_GEM_CMA_HELPER_H__
|
|
#define __DRM_GEM_CMA_HELPER_H__
|
|
|
|
struct drm_gem_cma_object {
|
|
struct drm_gem_object base;
|
|
dma_addr_t paddr;
|
|
void *vaddr;
|
|
};
|
|
|
|
static inline struct drm_gem_cma_object *
|
|
to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
|
|
{
|
|
return container_of(gem_obj, struct drm_gem_cma_object, base);
|
|
}
|
|
|
|
/* free gem object. */
|
|
void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
|
|
|
|
/* create memory region for drm framebuffer. */
|
|
int drm_gem_cma_dumb_create(struct drm_file *file_priv,
|
|
struct drm_device *drm, struct drm_mode_create_dumb *args);
|
|
|
|
/* map memory region for drm framebuffer to user space. */
|
|
int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
|
|
struct drm_device *drm, uint32_t handle, uint64_t *offset);
|
|
|
|
/* set vm_flags and we can change the vm attribute to other one at here. */
|
|
int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);
|
|
|
|
/*
|
|
* destroy memory region allocated.
|
|
* - a gem handle and physical memory region pointed by a gem object
|
|
* would be released by drm_gem_handle_delete().
|
|
*/
|
|
int drm_gem_cma_dumb_destroy(struct drm_file *file_priv,
|
|
struct drm_device *drm, unsigned int handle);
|
|
|
|
/* allocate physical memory. */
|
|
struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
|
|
unsigned int size);
|
|
|
|
extern const struct vm_operations_struct drm_gem_cma_vm_ops;
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m);
|
|
#endif
|
|
|
|
#endif /* __DRM_GEM_CMA_HELPER_H__ */
|