1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/core/subdev.h b/drivers/gpu/drm/nouveau/core/include/core/subdev.h
new file mode 100644
index 000000000000..e9632e931616
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/core/subdev.h
@@ -0,0 +1,118 @@
+#ifndef __NOUVEAU_SUBDEV_H__
+#define __NOUVEAU_SUBDEV_H__
+
+#include <core/object.h>
+
+#define NV_SUBDEV_(sub,var) (NV_SUBDEV_CLASS | ((var) << 8) | (sub))
+#define NV_SUBDEV(name,var)  NV_SUBDEV_(NVDEV_SUBDEV_##name, (var))
+
+struct nouveau_subdev {
+	struct nouveau_object base;
+	struct mutex mutex;
+	const char *name;
+	void __iomem *mmio;
+	u32 debug;
+	u32 unit;
+
+	void (*intr)(struct nouveau_subdev *);
+};
+
+static inline struct nouveau_subdev *
+nv_subdev(void *obj)
+{
+#if CONFIG_NOUVEAU_DEBUG >= NV_DBG_PARANOIA
+	if (unlikely(!nv_iclass(obj, NV_SUBDEV_CLASS)))
+		nv_assert("BAD CAST -> NvSubDev, %08x", nv_hclass(obj));
+#endif
+	return obj;
+}
+
+static inline int
+nv_subidx(struct nouveau_object *object)
+{
+	return nv_hclass(nv_subdev(object)) & 0xff;
+}
+
+#define nouveau_subdev_create(p,e,o,v,s,f,d)                                   \
+	nouveau_subdev_create_((p), (e), (o), (v), (s), (f),                   \
+			       sizeof(**d),(void **)d)
+
+int  nouveau_subdev_create_(struct nouveau_object *, struct nouveau_object *,
+			    struct nouveau_oclass *, u32 pclass,
+			    const char *sname, const char *fname,
+			    int size, void **);
+void nouveau_subdev_destroy(struct nouveau_subdev *);
+int  nouveau_subdev_init(struct nouveau_subdev *);
+int  nouveau_subdev_fini(struct nouveau_subdev *, bool suspend);
+void nouveau_subdev_reset(struct nouveau_object *);
+
+void _nouveau_subdev_dtor(struct nouveau_object *);
+int  _nouveau_subdev_init(struct nouveau_object *);
+int  _nouveau_subdev_fini(struct nouveau_object *, bool suspend);
+
+#define s_printk(s,l,f,a...) do {                                              \
+	if ((s)->debug >= OS_DBG_##l) {                                        \
+		nv_printk((s)->base.parent, (s)->name, l, f, ##a);             \
+	}                                                                      \
+} while(0)
+
+static inline u8
+nv_rd08(void *obj, u32 addr)
+{
+	struct nouveau_subdev *subdev = nv_subdev(obj);
+	u8 data = ioread8(subdev->mmio + addr);
+	nv_spam(subdev, "nv_rd08 0x%06x 0x%02x\n", addr, data);
+	return data;
+}
+
+static inline u16
+nv_rd16(void *obj, u32 addr)
+{
+	struct nouveau_subdev *subdev = nv_subdev(obj);
+	u16 data = ioread16_native(subdev->mmio + addr);
+	nv_spam(subdev, "nv_rd16 0x%06x 0x%04x\n", addr, data);
+	return data;
+}
+
+static inline u32
+nv_rd32(void *obj, u32 addr)
+{
+	struct nouveau_subdev *subdev = nv_subdev(obj);
+	u32 data = ioread32_native(subdev->mmio + addr);
+	nv_spam(subdev, "nv_rd32 0x%06x 0x%08x\n", addr, data);
+	return data;
+}
+
+static inline void
+nv_wr08(void *obj, u32 addr, u8 data)
+{
+	struct nouveau_subdev *subdev = nv_subdev(obj);
+	nv_spam(subdev, "nv_wr08 0x%06x 0x%02x\n", addr, data);
+	iowrite8(data, subdev->mmio + addr);
+}
+
+static inline void
+nv_wr16(void *obj, u32 addr, u16 data)
+{
+	struct nouveau_subdev *subdev = nv_subdev(obj);
+	nv_spam(subdev, "nv_wr16 0x%06x 0x%04x\n", addr, data);
+	iowrite16_native(data, subdev->mmio + addr);
+}
+
+static inline void
+nv_wr32(void *obj, u32 addr, u32 data)
+{
+	struct nouveau_subdev *subdev = nv_subdev(obj);
+	nv_spam(subdev, "nv_wr32 0x%06x 0x%08x\n", addr, data);
+	iowrite32_native(data, subdev->mmio + addr);
+}
+
+static inline u32
+nv_mask(void *obj, u32 addr, u32 mask, u32 data)
+{
+	u32 temp = nv_rd32(obj, addr);
+	nv_wr32(obj, addr, (temp & ~mask) | data);
+	return temp;
+}
+
+#endif