1 files changed, 202 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/core/object.h b/drivers/gpu/drm/nouveau/core/include/core/object.h
new file mode 100644
index 0000000..ce6d85c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/core/object.h
@@ -0,0 +1,202 @@
+#ifndef __NOUVEAU_OBJECT_H__
+#define __NOUVEAU_OBJECT_H__
+
+#include <core/os.h>
+#include <core/printk.h>
+
+#define NV_PARENT_CLASS 0x80000000
+#define NV_NAMEDB_CLASS 0x40000000
+#define NV_CLIENT_CLASS 0x20000000
+#define NV_SUBDEV_CLASS 0x10000000
+#define NV_ENGINE_CLASS 0x08000000
+#define NV_MEMOBJ_CLASS 0x04000000
+#define NV_GPUOBJ_CLASS 0x02000000
+#define NV_ENGCTX_CLASS 0x01000000
+#define NV_OBJECT_CLASS 0x0000ffff
+
+struct nouveau_object {
+	struct nouveau_oclass *oclass;
+	struct nouveau_object *parent;
+	struct nouveau_object *engine;
+	atomic_t refcount;
+	atomic_t usecount;
+#if CPTCFG_NOUVEAU_DEBUG >= NV_DBG_PARANOIA
+#define NOUVEAU_OBJECT_MAGIC 0x75ef0bad
+	struct list_head list;
+	u32 _magic;
+#endif
+};
+
+static inline struct nouveau_object *
+nv_object(void *obj)
+{
+#if CPTCFG_NOUVEAU_DEBUG >= NV_DBG_PARANOIA
+	if (likely(obj)) {
+		struct nouveau_object *object = obj;
+		if (unlikely(object->_magic != NOUVEAU_OBJECT_MAGIC))
+			nv_assert("BAD CAST -> NvObject, invalid magic");
+	}
+#endif
+	return obj;
+}
+
+#define nouveau_object_create(p,e,c,s,d)                                       \
+	nouveau_object_create_((p), (e), (c), (s), sizeof(**d), (void **)d)
+int  nouveau_object_create_(struct nouveau_object *, struct nouveau_object *,
+			    struct nouveau_oclass *, u32, int size, void **);
+void nouveau_object_destroy(struct nouveau_object *);
+int  nouveau_object_init(struct nouveau_object *);
+int  nouveau_object_fini(struct nouveau_object *, bool suspend);
+
+extern struct nouveau_ofuncs nouveau_object_ofuncs;
+
+/* Don't allocate dynamically, because lockdep needs lock_class_keys to be in
+ * ".data". */
+struct nouveau_oclass {
+	u32 handle;
+	struct nouveau_ofuncs * const ofuncs;
+	struct nouveau_omthds * const omthds;
+	struct lock_class_key lock_class_key;
+};
+
+#define nv_oclass(o)    nv_object(o)->oclass
+#define nv_hclass(o)    nv_oclass(o)->handle
+#define nv_iclass(o,i) (nv_hclass(o) & (i))
+#define nv_mclass(o)    nv_iclass(o, NV_OBJECT_CLASS)
+
+static inline struct nouveau_object *
+nv_pclass(struct nouveau_object *parent, u32 oclass)
+{
+	while (parent && !nv_iclass(parent, oclass))
+		parent = parent->parent;
+	return parent;
+}
+
+struct nouveau_omthds {
+	u32 start;
+	u32 limit;
+	int (*call)(struct nouveau_object *, u32, void *, u32);
+};
+
+struct nouveau_ofuncs {
+	int  (*ctor)(struct nouveau_object *, struct nouveau_object *,
+		     struct nouveau_oclass *, void *data, u32 size,
+		     struct nouveau_object **);
+	void (*dtor)(struct nouveau_object *);
+	int  (*init)(struct nouveau_object *);
+	int  (*fini)(struct nouveau_object *, bool suspend);
+	u8   (*rd08)(struct nouveau_object *, u64 offset);
+	u16  (*rd16)(struct nouveau_object *, u64 offset);
+	u32  (*rd32)(struct nouveau_object *, u64 offset);
+	void (*wr08)(struct nouveau_object *, u64 offset, u8 data);
+	void (*wr16)(struct nouveau_object *, u64 offset, u16 data);
+	void (*wr32)(struct nouveau_object *, u64 offset, u32 data);
+};
+
+static inline struct nouveau_ofuncs *
+nv_ofuncs(void *obj)
+{
+	return nv_oclass(obj)->ofuncs;
+}
+
+int  nouveau_object_ctor(struct nouveau_object *, struct nouveau_object *,
+			 struct nouveau_oclass *, void *, u32,
+			 struct nouveau_object **);
+void nouveau_object_ref(struct nouveau_object *, struct nouveau_object **);
+int nouveau_object_inc(struct nouveau_object *);
+int nouveau_object_dec(struct nouveau_object *, bool suspend);
+
+int nouveau_object_new(struct nouveau_object *, u32 parent, u32 handle,
+		       u16 oclass, void *data, u32 size,
+		       struct nouveau_object **);
+int nouveau_object_del(struct nouveau_object *, u32 parent, u32 handle);
+void nouveau_object_debug(void);
+
+static inline int
+nv_exec(void *obj, u32 mthd, void *data, u32 size)
+{
+	struct nouveau_omthds *method = nv_oclass(obj)->omthds;
+
+	while (method && method->call) {
+		if (mthd >= method->start && mthd <= method->limit)
+			return method->call(obj, mthd, data, size);
+		method++;
+	}
+
+	return -EINVAL;
+}
+
+static inline int
+nv_call(void *obj, u32 mthd, u32 data)
+{
+	return nv_exec(obj, mthd, &data, sizeof(data));
+}
+
+static inline u8
+nv_ro08(void *obj, u64 addr)
+{
+	u8 data = nv_ofuncs(obj)->rd08(obj, addr);
+	nv_spam(obj, "nv_ro08 0x%08llx 0x%02x\n", addr, data);
+	return data;
+}
+
+static inline u16
+nv_ro16(void *obj, u64 addr)
+{
+	u16 data = nv_ofuncs(obj)->rd16(obj, addr);
+	nv_spam(obj, "nv_ro16 0x%08llx 0x%04x\n", addr, data);
+	return data;
+}
+
+static inline u32
+nv_ro32(void *obj, u64 addr)
+{
+	u32 data = nv_ofuncs(obj)->rd32(obj, addr);
+	nv_spam(obj, "nv_ro32 0x%08llx 0x%08x\n", addr, data);
+	return data;
+}
+
+static inline void
+nv_wo08(void *obj, u64 addr, u8 data)
+{
+	nv_spam(obj, "nv_wo08 0x%08llx 0x%02x\n", addr, data);
+	nv_ofuncs(obj)->wr08(obj, addr, data);
+}
+
+static inline void
+nv_wo16(void *obj, u64 addr, u16 data)
+{
+	nv_spam(obj, "nv_wo16 0x%08llx 0x%04x\n", addr, data);
+	nv_ofuncs(obj)->wr16(obj, addr, data);
+}
+
+static inline void
+nv_wo32(void *obj, u64 addr, u32 data)
+{
+	nv_spam(obj, "nv_wo32 0x%08llx 0x%08x\n", addr, data);
+	nv_ofuncs(obj)->wr32(obj, addr, data);
+}
+
+static inline u32
+nv_mo32(void *obj, u64 addr, u32 mask, u32 data)
+{
+	u32 temp = nv_ro32(obj, addr);
+	nv_wo32(obj, addr, (temp & ~mask) | data);
+	return temp;
+}
+
+static inline int
+nv_memcmp(void *obj, u32 addr, const char *str, u32 len)
+{
+	unsigned char c1, c2;
+
+	while (len--) {
+		c1 = nv_ro08(obj, addr++);
+		c2 = *(str++);
+		if (c1 != c2)
+			return c1 - c2;
+	}
+	return 0;
+}
+
+#endif