[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / drm / drm_gem_cma_helper.h

#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__ */
Commit	Line	Data
b9d47450 SH	1	#ifndef __DRM_GEM_CMA_HELPER_H__
	2	#define __DRM_GEM_CMA_HELPER_H__
	3
	4	struct drm_gem_cma_object {
	5	struct drm_gem_object base;
	6	dma_addr_t paddr;
	7	void *vaddr;
	8	};
	9
	10	static inline struct drm_gem_cma_object *
	11	to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
	12	{
	13	return container_of(gem_obj, struct drm_gem_cma_object, base);
	14	}
	15
	16	/* free gem object. */
	17	void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
	18
	19	/* create memory region for drm framebuffer. */
	20	int drm_gem_cma_dumb_create(struct drm_file *file_priv,
	21	struct drm_device drm, struct drm_mode_create_dumb args);
	22
	23	/* map memory region for drm framebuffer to user space. */
	24	int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
	25	struct drm_device drm, uint32_t handle, uint64_t offset);
	26
	27	/* set vm_flags and we can change the vm attribute to other one at here. */
	28	int drm_gem_cma_mmap(struct file filp, struct vm_area_struct vma);
	29
	30	/*
	31	* destroy memory region allocated.
	32	* - a gem handle and physical memory region pointed by a gem object
	33	* would be released by drm_gem_handle_delete().
	34	*/
	35	int drm_gem_cma_dumb_destroy(struct drm_file *file_priv,
	36	struct drm_device *drm, unsigned int handle);
	37
	38	/* allocate physical memory. */
	39	struct drm_gem_cma_object drm_gem_cma_create(struct drm_device drm,
	40	unsigned int size);
	41
	42	extern const struct vm_operations_struct drm_gem_cma_vm_ops;
	43
6f646095 RC	44	#ifdef CONFIG_DEBUG_FS
	45	void drm_gem_cma_describe(struct drm_gem_cma_object obj, struct seq_file m);
	46	#endif
	47
b9d47450	48	#endif /* __DRM_GEM_CMA_HELPER_H__ */