text: #ifndef __NV50_KMS_HEAD_H__
  #define __NV50_KMS_HEAD_H__
  #define nv50_head(c) container_of((c), struct nv50_head, base.base)
  #include "disp.h"
  #include "atom.h"
  #include "lut.h"
  
  #include "nouveau_crtc.h"
  
  struct nv50_head {
  	const struct nv50_head_func *func;
  	struct nouveau_crtc base;
  	struct nv50_lut olut;
  };
  
  int nv50_head_create(struct drm_device *, int index);
  void nv50_head_flush_set(struct nv50_head *, struct nv50_head_atom *);
  void nv50_head_flush_clr(struct nv50_head *, struct nv50_head_atom *, bool y);
  
  struct nv50_head_func {
  	void (*view)(struct nv50_head *, struct nv50_head_atom *);
  	void (*mode)(struct nv50_head *, struct nv50_head_atom *);
  	void (*olut)(struct nv50_head *, struct nv50_head_atom *);
  	void (*olut_set)(struct nv50_head *, struct nv50_head_atom *);
  	void (*olut_clr)(struct nv50_head *);
  	void (*core_calc)(struct nv50_head *, struct nv50_head_atom *);
  	void (*core_set)(struct nv50_head *, struct nv50_head_atom *);
  	void (*core_clr)(struct nv50_head *);
  	int (*curs_layout)(struct nv50_head *, struct nv50_wndw_atom *,
  			   struct nv50_head_atom *);
  	int (*curs_format)(struct nv50_head *, struct nv50_wndw_atom *,
  			   struct nv50_head_atom *);
  	void (*curs_set)(struct nv50_head *, struct nv50_head_atom *);
  	void (*curs_clr)(struct nv50_head *);
  	void (*base)(struct nv50_head *, struct nv50_head_atom *);
  	void (*ovly)(struct nv50_head *, struct nv50_head_atom *);
  	void (*dither)(struct nv50_head *, struct nv50_head_atom *);
  	void (*procamp)(struct nv50_head *, struct nv50_head_atom *);
  	void (*or)(struct nv50_head *, struct nv50_head_atom *);
  };
  
  extern const struct nv50_head_func head507d;
  void head507d_view(struct nv50_head *, struct nv50_head_atom *);
  void head507d_mode(struct nv50_head *, struct nv50_head_atom *);
  void head507d_olut(struct nv50_head *, struct nv50_head_atom *);
  void head507d_core_calc(struct nv50_head *, struct nv50_head_atom *);
  void head507d_core_clr(struct nv50_head *);
  int head507d_curs_layout(struct nv50_head *, struct nv50_wndw_atom *,
  			 struct nv50_head_atom *);
  int head507d_curs_format(struct nv50_head *, struct nv50_wndw_atom *,
  			 struct nv50_head_atom *);
  void head507d_base(struct nv50_head *, struct nv50_head_atom *);
  void head507d_ovly(struct nv50_head *, struct nv50_head_atom *);
  void head507d_dither(struct nv50_head *, struct nv50_head_atom *);
  void head507d_procamp(struct nv50_head *, struct nv50_head_atom *);
  
  extern const struct nv50_head_func head827d;
  
  extern const struct nv50_head_func head907d;
  void head907d_view(struct nv50_head *, struct nv50_head_atom *);
  void head907d_mode(struct nv50_head *, struct nv50_head_atom *);
  void head907d_olut(struct nv50_head *, struct nv50_head_atom *);
  void head907d_olut_set(struct nv50_head *, struct nv50_head_atom *);
  void head907d_olut_clr(struct nv50_head *);
  void head907d_core_set(struct nv50_head *, struct nv50_head_atom *);
  void head907d_core_clr(struct nv50_head *);
  void head907d_curs_set(struct nv50_head *, struct nv50_head_atom *);
  void head907d_curs_clr(struct nv50_head *);
  void head907d_ovly(struct nv50_head *, struct nv50_head_atom *);
  void head907d_procamp(struct nv50_head *, struct nv50_head_atom *);
  void head907d_or(struct nv50_head *, struct nv50_head_atom *);
  
  extern const struct nv50_head_func head917d;
  int head917d_curs_layout(struct nv50_head *, struct nv50_wndw_atom *,
  			 struct nv50_head_atom *);
  
  extern const struct nv50_head_func headc37d;
  #endif
  