1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/core/engctx.h b/drivers/gpu/drm/nouveau/core/include/core/engctx.h
new file mode 100644
index 000000000000..8a947b6872eb
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/core/engctx.h
@@ -0,0 +1,51 @@
+#ifndef __NOUVEAU_ENGCTX_H__
+#define __NOUVEAU_ENGCTX_H__
+
+#include <core/object.h>
+#include <core/gpuobj.h>
+
+#include <subdev/vm.h>
+
+#define NV_ENGCTX_(eng,var) (NV_ENGCTX_CLASS | ((var) << 8) | (eng))
+#define NV_ENGCTX(name,var)  NV_ENGCTX_(NVDEV_ENGINE_##name, (var))
+
+struct nouveau_engctx {
+	struct nouveau_gpuobj base;
+	struct nouveau_vma vma;
+	struct list_head head;
+	unsigned long save;
+	u64 addr;
+};
+
+static inline struct nouveau_engctx *
+nv_engctx(void *obj)
+{
+#if CONFIG_NOUVEAU_DEBUG >= NV_DBG_PARANOIA
+	if (unlikely(!nv_iclass(obj, NV_ENGCTX_CLASS)))
+		nv_assert("BAD CAST -> NvEngCtx, %08x", nv_hclass(obj));
+#endif
+	return obj;
+}
+
+#define nouveau_engctx_create(p,e,c,g,s,a,f,d)                                 \
+	nouveau_engctx_create_((p), (e), (c), (g), (s), (a), (f),              \
+			       sizeof(**d), (void **)d)
+
+int  nouveau_engctx_create_(struct nouveau_object *, struct nouveau_object *,
+			    struct nouveau_oclass *, struct nouveau_object *,
+			    u32 size, u32 align, u32 flags,
+			    int length, void **data);
+void nouveau_engctx_destroy(struct nouveau_engctx *);
+int  nouveau_engctx_init(struct nouveau_engctx *);
+int  nouveau_engctx_fini(struct nouveau_engctx *, bool suspend);
+
+void _nouveau_engctx_dtor(struct nouveau_object *);
+int  _nouveau_engctx_init(struct nouveau_object *);
+int  _nouveau_engctx_fini(struct nouveau_object *, bool suspend);
+#define _nouveau_engctx_rd32 _nouveau_gpuobj_rd32
+#define _nouveau_engctx_wr32 _nouveau_gpuobj_wr32
+
+struct nouveau_object *nouveau_engctx_get(struct nouveau_engine *, u64 addr);
+void nouveau_engctx_put(struct nouveau_object *);
+
+#endif