drm/nve0/gr: initial implementation

This may, perhaps, get re-merged with nvc0_graph.c at some point.  It's
still unclear as to how great an idea that'd be.  Stay tuned...

Completely dependent on firmware blobs from NVIDIA binary driver currently.

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

1 files changed, 89 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nve0_graph.h b/drivers/gpu/drm/nouveau/nve0_graph.h
new file mode 100644
index 00000000000..2ba70449ba0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nve0_graph.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2012 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 __NVE0_GRAPH_H__
+#define __NVE0_GRAPH_H__
+
+#define GPC_MAX 4
+#define TPC_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 TPC_UNIT(t, m, r) (0x504000 + (t) * 0x8000 + (m) * 0x800 + (r))
+
+struct nve0_graph_fuc {
+	u32 *data;
+	u32  size;
+};
+
+struct nve0_graph_priv {
+	struct nouveau_exec_engine base;
+
+	struct nve0_graph_fuc fuc409c;
+	struct nve0_graph_fuc fuc409d;
+	struct nve0_graph_fuc fuc41ac;
+	struct nve0_graph_fuc fuc41ad;
+
+	u8 gpc_nr;
+	u8 rop_nr;
+	u8 tpc_nr[GPC_MAX];
+	u8 tpc_total;
+
+	u32  grctx_size;
+	u32 *grctx_vals;
+	struct nouveau_gpuobj *unk4188b4;
+	struct nouveau_gpuobj *unk4188b8;
+
+	u8 magic_not_rop_nr;
+};
+
+struct nve0_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 nve0_grctx_generate(struct nouveau_channel *);
+
+/* nve0_graph.c uses this also to determine supported chipsets */
+static inline u32
+nve0_graph_class(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+	switch (dev_priv->chipset) {
+	case 0xe4:
+	case 0xe7:
+		return 0xa097;
+	default:
+		return 0;
+	}
+}
+
+#endif