drm/nouveau: restructure source tree, split core from drm implementation

Future work will be headed in the way of separating the policy supplied by
the nouveau drm module from the mechanisms provided by the driver core.

There will be a couple of major classes (subdev, engine) of driver modules
that have clearly defined tasks, and the further directory structure change
is to reflect this.

No code changes here whatsoever, aside from fixing up a couple of include
file pathnames.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 97 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
new file mode 100644
index 000000000000..91d44ea662d9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2010 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#ifndef __NVC0_GRAPH_H__
+#define __NVC0_GRAPH_H__
+
+#define GPC_MAX 4
+#define TP_MAX 32
+
+#define ROP_BCAST(r)     (0x408800 + (r))
+#define ROP_UNIT(u, r)   (0x410000 + (u) * 0x400 + (r))
+#define GPC_BCAST(r)     (0x418000 + (r))
+#define GPC_UNIT(t, r)   (0x500000 + (t) * 0x8000 + (r))
+#define TP_UNIT(t, m, r) (0x504000 + (t) * 0x8000 + (m) * 0x800 + (r))
+
+struct nvc0_graph_fuc {
+	u32 *data;
+	u32  size;
+};
+
+struct nvc0_graph_priv {
+	struct nouveau_exec_engine base;
+
+	struct nvc0_graph_fuc fuc409c;
+	struct nvc0_graph_fuc fuc409d;
+	struct nvc0_graph_fuc fuc41ac;
+	struct nvc0_graph_fuc fuc41ad;
+
+	u8 gpc_nr;
+	u8 rop_nr;
+	u8 tp_nr[GPC_MAX];
+	u8 tp_total;
+
+	u32  grctx_size;
+	u32 *grctx_vals;
+	struct nouveau_gpuobj *unk4188b4;
+	struct nouveau_gpuobj *unk4188b8;
+
+	u8 magic_not_rop_nr;
+};
+
+struct nvc0_graph_chan {
+	struct nouveau_gpuobj *grctx;
+	struct nouveau_gpuobj *unk408004; /* 0x418810 too */
+	struct nouveau_gpuobj *unk40800c; /* 0x419004 too */
+	struct nouveau_gpuobj *unk418810; /* 0x419848 too */
+	struct nouveau_gpuobj *mmio;
+	int mmio_nr;
+};
+
+int nvc0_grctx_generate(struct nouveau_channel *);
+
+/* nvc0_graph.c uses this also to determine supported chipsets */
+static inline u32
+nvc0_graph_class(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+	switch (dev_priv->chipset) {
+	case 0xc0:
+	case 0xc3:
+	case 0xc4:
+	case 0xce: /* guess, mmio trace shows only 0x9097 state */
+	case 0xcf: /* guess, mmio trace shows only 0x9097 state */
+		return 0x9097;
+	case 0xc1:
+		return 0x9197;
+	case 0xc8:
+	case 0xd9:
+		return 0x9297;
+	default:
+		return 0;
+	}
+}
+
+#endif