1 #ifndef __NVKM_OBJECT_H__ 2 #define __NVKM_OBJECT_H__ 3 #include <core/os.h> 4 #include <core/debug.h> 5 6 #define NV_PARENT_CLASS 0x80000000 7 #define NV_NAMEDB_CLASS 0x40000000 8 #define NV_CLIENT_CLASS 0x20000000 9 #define NV_SUBDEV_CLASS 0x10000000 10 #define NV_ENGINE_CLASS 0x08000000 11 #define NV_MEMOBJ_CLASS 0x04000000 12 #define NV_GPUOBJ_CLASS 0x02000000 13 #define NV_ENGCTX_CLASS 0x01000000 14 #define NV_OBJECT_CLASS 0x0000ffff 15 16 struct nvkm_object { 17 struct nvkm_oclass *oclass; 18 struct nvkm_object *parent; 19 struct nvkm_engine *engine; 20 atomic_t refcount; 21 atomic_t usecount; 22 #if CONFIG_NOUVEAU_DEBUG >= NV_DBG_PARANOIA 23 #define NVKM_OBJECT_MAGIC 0x75ef0bad 24 struct list_head list; 25 u32 _magic; 26 #endif 27 }; 28 29 int nvkm_object_rd08(struct nvkm_object *, u64 addr, u8 *data); 30 int nvkm_object_rd16(struct nvkm_object *, u64 addr, u16 *data); 31 int nvkm_object_rd32(struct nvkm_object *, u64 addr, u32 *data); 32 int nvkm_object_wr08(struct nvkm_object *, u64 addr, u8 data); 33 int nvkm_object_wr16(struct nvkm_object *, u64 addr, u16 data); 34 int nvkm_object_wr32(struct nvkm_object *, u64 addr, u32 data); 35 36 static inline struct nvkm_object * 37 nv_object(void *obj) 38 { 39 #if CONFIG_NOUVEAU_DEBUG >= NV_DBG_PARANOIA 40 if (likely(obj)) { 41 struct nvkm_object *object = obj; 42 BUG_ON(object->_magic != NVKM_OBJECT_MAGIC); 43 } 44 #endif 45 return obj; 46 } 47 48 #define nvkm_object_create(p,e,c,s,d) \ 49 nvkm_object_create_((p), (e), (c), (s), sizeof(**d), (void **)d) 50 int nvkm_object_create_(struct nvkm_object *, struct nvkm_object *, 51 struct nvkm_oclass *, u32, int size, void **); 52 void nvkm_object_destroy(struct nvkm_object *); 53 int nvkm_object_init(struct nvkm_object *); 54 int nvkm_object_fini(struct nvkm_object *, bool suspend); 55 56 int _nvkm_object_ctor(struct nvkm_object *, struct nvkm_object *, 57 struct nvkm_oclass *, void *, u32, 58 struct nvkm_object **); 59 60 extern struct nvkm_ofuncs nvkm_object_ofuncs; 61 62 /* Don't allocate dynamically, because lockdep needs lock_class_keys to be in 63 * ".data". */ 64 struct nvkm_oclass { 65 u32 handle; 66 struct nvkm_ofuncs * const ofuncs; 67 struct nvkm_omthds * const omthds; 68 struct lock_class_key lock_class_key; 69 }; 70 71 #define nv_oclass(o) nv_object(o)->oclass 72 #define nv_hclass(o) nv_oclass(o)->handle 73 #define nv_iclass(o,i) (nv_hclass(o) & (i)) 74 #define nv_mclass(o) nv_iclass(o, NV_OBJECT_CLASS) 75 76 static inline struct nvkm_object * 77 nv_pclass(struct nvkm_object *parent, u32 oclass) 78 { 79 while (parent && !nv_iclass(parent, oclass)) 80 parent = parent->parent; 81 return parent; 82 } 83 84 struct nvkm_omthds { 85 u32 start; 86 u32 limit; 87 int (*call)(struct nvkm_object *, u32, void *, u32); 88 }; 89 90 struct nvkm_event; 91 struct nvkm_ofuncs { 92 int (*ctor)(struct nvkm_object *, struct nvkm_object *, 93 struct nvkm_oclass *, void *data, u32 size, 94 struct nvkm_object **); 95 void (*dtor)(struct nvkm_object *); 96 int (*init)(struct nvkm_object *); 97 int (*fini)(struct nvkm_object *, bool suspend); 98 int (*mthd)(struct nvkm_object *, u32, void *, u32); 99 int (*ntfy)(struct nvkm_object *, u32, struct nvkm_event **); 100 int (* map)(struct nvkm_object *, u64 *, u32 *); 101 u8 (*rd08)(struct nvkm_object *, u64 offset); 102 u16 (*rd16)(struct nvkm_object *, u64 offset); 103 u32 (*rd32)(struct nvkm_object *, u64 offset); 104 void (*wr08)(struct nvkm_object *, u64 offset, u8 data); 105 void (*wr16)(struct nvkm_object *, u64 offset, u16 data); 106 void (*wr32)(struct nvkm_object *, u64 offset, u32 data); 107 }; 108 109 static inline struct nvkm_ofuncs * 110 nv_ofuncs(void *obj) 111 { 112 return nv_oclass(obj)->ofuncs; 113 } 114 115 int nvkm_object_ctor(struct nvkm_object *, struct nvkm_object *, 116 struct nvkm_oclass *, void *, u32, 117 struct nvkm_object **); 118 void nvkm_object_ref(struct nvkm_object *, struct nvkm_object **); 119 int nvkm_object_inc(struct nvkm_object *); 120 int nvkm_object_dec(struct nvkm_object *, bool suspend); 121 122 static inline int 123 nv_exec(void *obj, u32 mthd, void *data, u32 size) 124 { 125 struct nvkm_omthds *method = nv_oclass(obj)->omthds; 126 127 while (method && method->call) { 128 if (mthd >= method->start && mthd <= method->limit) 129 return method->call(obj, mthd, data, size); 130 method++; 131 } 132 133 return -EINVAL; 134 } 135 136 static inline int 137 nv_call(void *obj, u32 mthd, u32 data) 138 { 139 return nv_exec(obj, mthd, &data, sizeof(data)); 140 } 141 #endif 142