linux/include/drm/drm_gem_cma_helper.h
Rob Clark 6f646095ec drm/cma: add debugfs helpers
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>
2013-02-17 17:55:42 -05:00

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__ */