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drm_agpsupport.h revision 1.1.1.2 
      1 /*	$NetBSD: drm_agpsupport.h,v 1.1.1.2 2018/08/27 01:35:00 riastradh Exp $	*/
      2 
      3 #ifndef _DRM_AGPSUPPORT_H_
      4 #define _DRM_AGPSUPPORT_H_
      5 
      6 #include <linux/agp_backend.h>
      7 #include <linux/kernel.h>
      8 #include <linux/list.h>
      9 #include <linux/mm.h>
     10 #include <linux/mutex.h>
     11 #include <linux/types.h>
     12 #include <uapi/drm/drm.h>
     13 
     14 struct drm_device;
     15 struct drm_file;
     16 
     17 struct drm_agp_head {
     18 	struct agp_kern_info agp_info;
     19 	struct list_head memory;
     20 	unsigned long mode;
     21 	struct agp_bridge_data *bridge;
     22 	int enabled;
     23 	int acquired;
     24 	unsigned long base;
     25 	int agp_mtrr;
     26 	int cant_use_aperture;
     27 	unsigned long page_mask;
     28 };
     29 
     30 #if IS_ENABLED(CONFIG_AGP)
     31 
     32 void drm_free_agp(struct agp_memory * handle, int pages);
     33 int drm_bind_agp(struct agp_memory * handle, unsigned int start);
     34 int drm_unbind_agp(struct agp_memory * handle);
     35 struct agp_memory *drm_agp_bind_pages(struct drm_device *dev,
     36 				struct page **pages,
     37 				unsigned long num_pages,
     38 				uint32_t gtt_offset,
     39 				uint32_t type);
     40 
     41 struct drm_agp_head *drm_agp_init(struct drm_device *dev);
     42 void drm_agp_clear(struct drm_device *dev);
     43 int drm_agp_acquire(struct drm_device *dev);
     44 int drm_agp_acquire_ioctl(struct drm_device *dev, void *data,
     45 			  struct drm_file *file_priv);
     46 int drm_agp_release(struct drm_device *dev);
     47 int drm_agp_release_ioctl(struct drm_device *dev, void *data,
     48 			  struct drm_file *file_priv);
     49 int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode);
     50 int drm_agp_enable_ioctl(struct drm_device *dev, void *data,
     51 			 struct drm_file *file_priv);
     52 int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info);
     53 int drm_agp_info_ioctl(struct drm_device *dev, void *data,
     54 		       struct drm_file *file_priv);
     55 int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request);
     56 int drm_agp_alloc_ioctl(struct drm_device *dev, void *data,
     57 			struct drm_file *file_priv);
     58 int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request);
     59 int drm_agp_free_ioctl(struct drm_device *dev, void *data,
     60 		       struct drm_file *file_priv);
     61 int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request);
     62 int drm_agp_unbind_ioctl(struct drm_device *dev, void *data,
     63 			 struct drm_file *file_priv);
     64 int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
     65 int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
     66 		       struct drm_file *file_priv);
     67 
     68 #else /* CONFIG_AGP */
     69 
     70 static inline void drm_free_agp(struct agp_memory * handle, int pages)
     71 {
     72 }
     73 
     74 static inline int drm_bind_agp(struct agp_memory * handle, unsigned int start)
     75 {
     76 	return -ENODEV;
     77 }
     78 
     79 static inline int drm_unbind_agp(struct agp_memory * handle)
     80 {
     81 	return -ENODEV;
     82 }
     83 
     84 static inline struct agp_memory *drm_agp_bind_pages(struct drm_device *dev,
     85 					      struct page **pages,
     86 					      unsigned long num_pages,
     87 					      uint32_t gtt_offset,
     88 					      uint32_t type)
     89 {
     90 	return NULL;
     91 }
     92 
     93 static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev)
     94 {
     95 	return NULL;
     96 }
     97 
     98 static inline void drm_agp_clear(struct drm_device *dev)
     99 {
    100 }
    101 
    102 static inline int drm_agp_acquire(struct drm_device *dev)
    103 {
    104 	return -ENODEV;
    105 }
    106 
    107 static inline int drm_agp_release(struct drm_device *dev)
    108 {
    109 	return -ENODEV;
    110 }
    111 
    112 static inline int drm_agp_enable(struct drm_device *dev,
    113 				 struct drm_agp_mode mode)
    114 {
    115 	return -ENODEV;
    116 }
    117 
    118 static inline int drm_agp_info(struct drm_device *dev,
    119 			       struct drm_agp_info *info)
    120 {
    121 	return -ENODEV;
    122 }
    123 
    124 static inline int drm_agp_alloc(struct drm_device *dev,
    125 				struct drm_agp_buffer *request)
    126 {
    127 	return -ENODEV;
    128 }
    129 
    130 static inline int drm_agp_free(struct drm_device *dev,
    131 			       struct drm_agp_buffer *request)
    132 {
    133 	return -ENODEV;
    134 }
    135 
    136 static inline int drm_agp_unbind(struct drm_device *dev,
    137 				 struct drm_agp_binding *request)
    138 {
    139 	return -ENODEV;
    140 }
    141 
    142 static inline int drm_agp_bind(struct drm_device *dev,
    143 			       struct drm_agp_binding *request)
    144 {
    145 	return -ENODEV;
    146 }
    147 
    148 #endif /* CONFIG_AGP */
    149 
    150 #endif /* _DRM_AGPSUPPORT_H_ */
    151