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, 831 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nve0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nve0.c
new file mode 100644
index 0000000..a8364b1
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nve0.c
@@ -0,0 +1,831 @@
+/*
+ * 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
+ */
+
+#include <linux/firmware.h>
+#include <linux/module.h>
+
+#include "drmP.h"
+
+#include "nouveau_drv.h"
+#include <core/mm.h>
+#include <engine/fifo.h>
+
+#include "nve0.h"
+
+static void
+nve0_graph_ctxctl_debug_unit(struct drm_device *dev, u32 base)
+{
+	NV_INFO(dev, "PGRAPH: %06x - done 0x%08x\n", base,
+		nv_rd32(dev, base + 0x400));
+	NV_INFO(dev, "PGRAPH: %06x - stat 0x%08x 0x%08x 0x%08x 0x%08x\n", base,
+		nv_rd32(dev, base + 0x800), nv_rd32(dev, base + 0x804),
+		nv_rd32(dev, base + 0x808), nv_rd32(dev, base + 0x80c));
+	NV_INFO(dev, "PGRAPH: %06x - stat 0x%08x 0x%08x 0x%08x 0x%08x\n", base,
+		nv_rd32(dev, base + 0x810), nv_rd32(dev, base + 0x814),
+		nv_rd32(dev, base + 0x818), nv_rd32(dev, base + 0x81c));
+}
+
+static void
+nve0_graph_ctxctl_debug(struct drm_device *dev)
+{
+	u32 gpcnr = nv_rd32(dev, 0x409604) & 0xffff;
+	u32 gpc;
+
+	nve0_graph_ctxctl_debug_unit(dev, 0x409000);
+	for (gpc = 0; gpc < gpcnr; gpc++)
+		nve0_graph_ctxctl_debug_unit(dev, 0x502000 + (gpc * 0x8000));
+}
+
+static int
+nve0_graph_load_context(struct nouveau_channel *chan)
+{
+	struct drm_device *dev = chan->dev;
+
+	nv_wr32(dev, 0x409840, 0x00000030);
+	nv_wr32(dev, 0x409500, 0x80000000 | chan->ramin->vinst >> 12);
+	nv_wr32(dev, 0x409504, 0x00000003);
+	if (!nv_wait(dev, 0x409800, 0x00000010, 0x00000010))
+		NV_ERROR(dev, "PGRAPH: load_ctx timeout\n");
+
+	return 0;
+}
+
+static int
+nve0_graph_unload_context_to(struct drm_device *dev, u64 chan)
+{
+	nv_wr32(dev, 0x409840, 0x00000003);
+	nv_wr32(dev, 0x409500, 0x80000000 | chan >> 12);
+	nv_wr32(dev, 0x409504, 0x00000009);
+	if (!nv_wait(dev, 0x409800, 0x00000001, 0x00000000)) {
+		NV_ERROR(dev, "PGRAPH: unload_ctx timeout\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static int
+nve0_graph_construct_context(struct nouveau_channel *chan)
+{
+	struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
+	struct nve0_graph_priv *priv = nv_engine(chan->dev, NVOBJ_ENGINE_GR);
+	struct nve0_graph_chan *grch = chan->engctx[NVOBJ_ENGINE_GR];
+	struct drm_device *dev = chan->dev;
+	int ret, i;
+	u32 *ctx;
+
+	ctx = kmalloc(priv->grctx_size, GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	nve0_graph_load_context(chan);
+
+	nv_wo32(grch->grctx, 0x1c, 1);
+	nv_wo32(grch->grctx, 0x20, 0);
+	nv_wo32(grch->grctx, 0x28, 0);
+	nv_wo32(grch->grctx, 0x2c, 0);
+	dev_priv->engine.instmem.flush(dev);
+
+	ret = nve0_grctx_generate(chan);
+	if (ret)
+		goto err;
+
+	ret = nve0_graph_unload_context_to(dev, chan->ramin->vinst);
+	if (ret)
+		goto err;
+
+	for (i = 0; i < priv->grctx_size; i += 4)
+		ctx[i / 4] = nv_ro32(grch->grctx, i);
+
+	priv->grctx_vals = ctx;
+	return 0;
+
+err:
+	kfree(ctx);
+	return ret;
+}
+
+static int
+nve0_graph_create_context_mmio_list(struct nouveau_channel *chan)
+{
+	struct nve0_graph_priv *priv = nv_engine(chan->dev, NVOBJ_ENGINE_GR);
+	struct nve0_graph_chan *grch = chan->engctx[NVOBJ_ENGINE_GR];
+	struct drm_device *dev = chan->dev;
+	u32 magic[GPC_MAX][2];
+	u16 offset = 0x0000;
+	int gpc;
+	int ret;
+
+	ret = nouveau_gpuobj_new(dev, chan, 0x3000, 256, NVOBJ_FLAG_VM,
+				 &grch->unk408004);
+	if (ret)
+		return ret;
+
+	ret = nouveau_gpuobj_new(dev, chan, 0x8000, 256, NVOBJ_FLAG_VM,
+				 &grch->unk40800c);
+	if (ret)
+		return ret;
+
+	ret = nouveau_gpuobj_new(dev, chan, 384 * 1024, 4096,
+				 NVOBJ_FLAG_VM | NVOBJ_FLAG_VM_USER,
+				 &grch->unk418810);
+	if (ret)
+		return ret;
+
+	ret = nouveau_gpuobj_new(dev, chan, 0x1000, 0, NVOBJ_FLAG_VM,
+				 &grch->mmio);
+	if (ret)
+		return ret;
+
+#define mmio(r,v) do {                                                         \
+	nv_wo32(grch->mmio, (grch->mmio_nr * 8) + 0, (r));                     \
+	nv_wo32(grch->mmio, (grch->mmio_nr * 8) + 4, (v));                     \
+	grch->mmio_nr++;                                                       \
+} while (0)
+	mmio(0x40800c, grch->unk40800c->linst >> 8);
+	mmio(0x408010, 0x80000000);
+	mmio(0x419004, grch->unk40800c->linst >> 8);
+	mmio(0x419008, 0x00000000);
+	mmio(0x4064cc, 0x80000000);
+	mmio(0x408004, grch->unk408004->linst >> 8);
+	mmio(0x408008, 0x80000030);
+	mmio(0x418808, grch->unk408004->linst >> 8);
+	mmio(0x41880c, 0x80000030);
+	mmio(0x4064c8, 0x01800600);
+	mmio(0x418810, 0x80000000 | grch->unk418810->linst >> 12);
+	mmio(0x419848, 0x10000000 | grch->unk418810->linst >> 12);
+	mmio(0x405830, 0x02180648);
+	mmio(0x4064c4, 0x0192ffff);
+
+	for (gpc = 0; gpc < priv->gpc_nr; gpc++) {
+		u16 magic0 = 0x0218 * priv->tpc_nr[gpc];
+		u16 magic1 = 0x0648 * priv->tpc_nr[gpc];
+		magic[gpc][0]  = 0x10000000 | (magic0 << 16) | offset;
+		magic[gpc][1]  = 0x00000000 | (magic1 << 16);
+		offset += 0x0324 * priv->tpc_nr[gpc];
+	}
+
+	for (gpc = 0; gpc < priv->gpc_nr; gpc++) {
+		mmio(GPC_UNIT(gpc, 0x30c0), magic[gpc][0]);
+		mmio(GPC_UNIT(gpc, 0x30e4), magic[gpc][1] | offset);
+		offset += 0x07ff * priv->tpc_nr[gpc];
+	}
+
+	mmio(0x17e91c, 0x06060609);
+	mmio(0x17e920, 0x00090a05);
+#undef mmio
+	return 0;
+}
+
+static int
+nve0_graph_context_new(struct nouveau_channel *chan, int engine)
+{
+	struct drm_device *dev = chan->dev;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
+	struct nve0_graph_priv *priv = nv_engine(dev, engine);
+	struct nve0_graph_chan *grch;
+	struct nouveau_gpuobj *grctx;
+	int ret, i;
+
+	grch = kzalloc(sizeof(*grch), GFP_KERNEL);
+	if (!grch)
+		return -ENOMEM;
+	chan->engctx[NVOBJ_ENGINE_GR] = grch;
+
+	ret = nouveau_gpuobj_new(dev, chan, priv->grctx_size, 256,
+				 NVOBJ_FLAG_VM | NVOBJ_FLAG_ZERO_ALLOC,
+				 &grch->grctx);
+	if (ret)
+		goto error;
+	grctx = grch->grctx;
+
+	ret = nve0_graph_create_context_mmio_list(chan);
+	if (ret)
+		goto error;
+
+	nv_wo32(chan->ramin, 0x0210, lower_32_bits(grctx->linst) | 4);
+	nv_wo32(chan->ramin, 0x0214, upper_32_bits(grctx->linst));
+	pinstmem->flush(dev);
+
+	if (!priv->grctx_vals) {
+		ret = nve0_graph_construct_context(chan);
+		if (ret)
+			goto error;
+	}
+
+	for (i = 0; i < priv->grctx_size; i += 4)
+		nv_wo32(grctx, i, priv->grctx_vals[i / 4]);
+	nv_wo32(grctx, 0xf4, 0);
+	nv_wo32(grctx, 0xf8, 0);
+	nv_wo32(grctx, 0x10, grch->mmio_nr);
+	nv_wo32(grctx, 0x14, lower_32_bits(grch->mmio->linst));
+	nv_wo32(grctx, 0x18, upper_32_bits(grch->mmio->linst));
+	nv_wo32(grctx, 0x1c, 1);
+	nv_wo32(grctx, 0x20, 0);
+	nv_wo32(grctx, 0x28, 0);
+	nv_wo32(grctx, 0x2c, 0);
+
+	pinstmem->flush(dev);
+	return 0;
+
+error:
+	priv->base.context_del(chan, engine);
+	return ret;
+}
+
+static void
+nve0_graph_context_del(struct nouveau_channel *chan, int engine)
+{
+	struct nve0_graph_chan *grch = chan->engctx[engine];
+
+	nouveau_gpuobj_ref(NULL, &grch->mmio);
+	nouveau_gpuobj_ref(NULL, &grch->unk418810);
+	nouveau_gpuobj_ref(NULL, &grch->unk40800c);
+	nouveau_gpuobj_ref(NULL, &grch->unk408004);
+	nouveau_gpuobj_ref(NULL, &grch->grctx);
+	chan->engctx[engine] = NULL;
+}
+
+static int
+nve0_graph_object_new(struct nouveau_channel *chan, int engine,
+		      u32 handle, u16 class)
+{
+	return 0;
+}
+
+static int
+nve0_graph_fini(struct drm_device *dev, int engine, bool suspend)
+{
+	return 0;
+}
+
+static void
+nve0_graph_init_obj418880(struct drm_device *dev)
+{
+	struct nve0_graph_priv *priv = nv_engine(dev, NVOBJ_ENGINE_GR);
+	int i;
+
+	nv_wr32(dev, GPC_BCAST(0x0880), 0x00000000);
+	nv_wr32(dev, GPC_BCAST(0x08a4), 0x00000000);
+	for (i = 0; i < 4; i++)
+		nv_wr32(dev, GPC_BCAST(0x0888) + (i * 4), 0x00000000);
+	nv_wr32(dev, GPC_BCAST(0x08b4), priv->unk4188b4->vinst >> 8);
+	nv_wr32(dev, GPC_BCAST(0x08b8), priv->unk4188b8->vinst >> 8);
+}
+
+static void
+nve0_graph_init_regs(struct drm_device *dev)
+{
+	nv_wr32(dev, 0x400080, 0x003083c2);
+	nv_wr32(dev, 0x400088, 0x0001ffe7);
+	nv_wr32(dev, 0x40008c, 0x00000000);
+	nv_wr32(dev, 0x400090, 0x00000030);
+	nv_wr32(dev, 0x40013c, 0x003901f7);
+	nv_wr32(dev, 0x400140, 0x00000100);
+	nv_wr32(dev, 0x400144, 0x00000000);
+	nv_wr32(dev, 0x400148, 0x00000110);
+	nv_wr32(dev, 0x400138, 0x00000000);
+	nv_wr32(dev, 0x400130, 0x00000000);
+	nv_wr32(dev, 0x400134, 0x00000000);
+	nv_wr32(dev, 0x400124, 0x00000002);
+}
+
+static void
+nve0_graph_init_units(struct drm_device *dev)
+{
+	nv_wr32(dev, 0x409ffc, 0x00000000);
+	nv_wr32(dev, 0x409c14, 0x00003e3e);
+	nv_wr32(dev, 0x409c24, 0x000f0000);
+
+	nv_wr32(dev, 0x404000, 0xc0000000);
+	nv_wr32(dev, 0x404600, 0xc0000000);
+	nv_wr32(dev, 0x408030, 0xc0000000);
+	nv_wr32(dev, 0x404490, 0xc0000000);
+	nv_wr32(dev, 0x406018, 0xc0000000);
+	nv_wr32(dev, 0x407020, 0xc0000000);
+	nv_wr32(dev, 0x405840, 0xc0000000);
+	nv_wr32(dev, 0x405844, 0x00ffffff);
+
+	nv_mask(dev, 0x419cc0, 0x00000008, 0x00000008);
+	nv_mask(dev, 0x419eb4, 0x00001000, 0x00001000);
+
+}
+
+static void
+nve0_graph_init_gpc_0(struct drm_device *dev)
+{
+	struct nve0_graph_priv *priv = nv_engine(dev, NVOBJ_ENGINE_GR);
+	const u32 magicgpc918 = DIV_ROUND_UP(0x00800000, priv->tpc_total);
+	u32 data[TPC_MAX / 8];
+	u8  tpcnr[GPC_MAX];
+	int i, gpc, tpc;
+
+	nv_wr32(dev, GPC_UNIT(0, 0x3018), 0x00000001);
+
+	memset(data, 0x00, sizeof(data));
+	memcpy(tpcnr, priv->tpc_nr, sizeof(priv->tpc_nr));
+	for (i = 0, gpc = -1; i < priv->tpc_total; i++) {
+		do {
+			gpc = (gpc + 1) % priv->gpc_nr;
+		} while (!tpcnr[gpc]);
+		tpc = priv->tpc_nr[gpc] - tpcnr[gpc]--;
+
+		data[i / 8] |= tpc << ((i % 8) * 4);
+	}
+
+	nv_wr32(dev, GPC_BCAST(0x0980), data[0]);
+	nv_wr32(dev, GPC_BCAST(0x0984), data[1]);
+	nv_wr32(dev, GPC_BCAST(0x0988), data[2]);
+	nv_wr32(dev, GPC_BCAST(0x098c), data[3]);
+
+	for (gpc = 0; gpc < priv->gpc_nr; gpc++) {
+		nv_wr32(dev, GPC_UNIT(gpc, 0x0914), priv->magic_not_rop_nr << 8 |
+						  priv->tpc_nr[gpc]);
+		nv_wr32(dev, GPC_UNIT(gpc, 0x0910), 0x00040000 | priv->tpc_total);
+		nv_wr32(dev, GPC_UNIT(gpc, 0x0918), magicgpc918);
+	}
+
+	nv_wr32(dev, GPC_BCAST(0x1bd4), magicgpc918);
+	nv_wr32(dev, GPC_BCAST(0x08ac), nv_rd32(dev, 0x100800));
+}
+
+static void
+nve0_graph_init_gpc_1(struct drm_device *dev)
+{
+	struct nve0_graph_priv *priv = nv_engine(dev, NVOBJ_ENGINE_GR);
+	int gpc, tpc;
+
+	for (gpc = 0; gpc < priv->gpc_nr; gpc++) {
+		nv_wr32(dev, GPC_UNIT(gpc, 0x3038), 0xc0000000);
+		nv_wr32(dev, GPC_UNIT(gpc, 0x0420), 0xc0000000);
+		nv_wr32(dev, GPC_UNIT(gpc, 0x0900), 0xc0000000);
+		nv_wr32(dev, GPC_UNIT(gpc, 0x1028), 0xc0000000);
+		nv_wr32(dev, GPC_UNIT(gpc, 0x0824), 0xc0000000);
+		for (tpc = 0; tpc < priv->tpc_nr[gpc]; tpc++) {
+			nv_wr32(dev, TPC_UNIT(gpc, tpc, 0x508), 0xffffffff);
+			nv_wr32(dev, TPC_UNIT(gpc, tpc, 0x50c), 0xffffffff);
+			nv_wr32(dev, TPC_UNIT(gpc, tpc, 0x224), 0xc0000000);
+			nv_wr32(dev, TPC_UNIT(gpc, tpc, 0x48c), 0xc0000000);
+			nv_wr32(dev, TPC_UNIT(gpc, tpc, 0x084), 0xc0000000);
+			nv_wr32(dev, TPC_UNIT(gpc, tpc, 0x644), 0x001ffffe);
+			nv_wr32(dev, TPC_UNIT(gpc, tpc, 0x64c), 0x0000000f);
+		}
+		nv_wr32(dev, GPC_UNIT(gpc, 0x2c90), 0xffffffff);
+		nv_wr32(dev, GPC_UNIT(gpc, 0x2c94), 0xffffffff);
+	}
+}
+
+static void
+nve0_graph_init_rop(struct drm_device *dev)
+{
+	struct nve0_graph_priv *priv = nv_engine(dev, NVOBJ_ENGINE_GR);
+	int rop;
+
+	for (rop = 0; rop < priv->rop_nr; rop++) {
+		nv_wr32(dev, ROP_UNIT(rop, 0x144), 0xc0000000);
+		nv_wr32(dev, ROP_UNIT(rop, 0x070), 0xc0000000);
+		nv_wr32(dev, ROP_UNIT(rop, 0x204), 0xffffffff);
+		nv_wr32(dev, ROP_UNIT(rop, 0x208), 0xffffffff);
+	}
+}
+
+static void
+nve0_graph_init_fuc(struct drm_device *dev, u32 fuc_base,
+		    struct nve0_graph_fuc *code, struct nve0_graph_fuc *data)
+{
+	int i;
+
+	nv_wr32(dev, fuc_base + 0x01c0, 0x01000000);
+	for (i = 0; i < data->size / 4; i++)
+		nv_wr32(dev, fuc_base + 0x01c4, data->data[i]);
+
+	nv_wr32(dev, fuc_base + 0x0180, 0x01000000);
+	for (i = 0; i < code->size / 4; i++) {
+		if ((i & 0x3f) == 0)
+			nv_wr32(dev, fuc_base + 0x0188, i >> 6);
+		nv_wr32(dev, fuc_base + 0x0184, code->data[i]);
+	}
+}
+
+static int
+nve0_graph_init_ctxctl(struct drm_device *dev)
+{
+	struct nve0_graph_priv *priv = nv_engine(dev, NVOBJ_ENGINE_GR);
+	u32 r000260;
+
+	/* load fuc microcode */
+	r000260 = nv_mask(dev, 0x000260, 0x00000001, 0x00000000);
+	nve0_graph_init_fuc(dev, 0x409000, &priv->fuc409c, &priv->fuc409d);
+	nve0_graph_init_fuc(dev, 0x41a000, &priv->fuc41ac, &priv->fuc41ad);
+	nv_wr32(dev, 0x000260, r000260);
+
+	/* start both of them running */
+	nv_wr32(dev, 0x409840, 0xffffffff);
+	nv_wr32(dev, 0x41a10c, 0x00000000);
+	nv_wr32(dev, 0x40910c, 0x00000000);
+	nv_wr32(dev, 0x41a100, 0x00000002);
+	nv_wr32(dev, 0x409100, 0x00000002);
+	if (!nv_wait(dev, 0x409800, 0x00000001, 0x00000001))
+		NV_INFO(dev, "0x409800 wait failed\n");
+
+	nv_wr32(dev, 0x409840, 0xffffffff);
+	nv_wr32(dev, 0x409500, 0x7fffffff);
+	nv_wr32(dev, 0x409504, 0x00000021);
+
+	nv_wr32(dev, 0x409840, 0xffffffff);
+	nv_wr32(dev, 0x409500, 0x00000000);
+	nv_wr32(dev, 0x409504, 0x00000010);
+	if (!nv_wait_ne(dev, 0x409800, 0xffffffff, 0x00000000)) {
+		NV_ERROR(dev, "fuc09 req 0x10 timeout\n");
+		return -EBUSY;
+	}
+	priv->grctx_size = nv_rd32(dev, 0x409800);
+
+	nv_wr32(dev, 0x409840, 0xffffffff);
+	nv_wr32(dev, 0x409500, 0x00000000);
+	nv_wr32(dev, 0x409504, 0x00000016);
+	if (!nv_wait_ne(dev, 0x409800, 0xffffffff, 0x00000000)) {
+		NV_ERROR(dev, "fuc09 req 0x16 timeout\n");
+		return -EBUSY;
+	}
+
+	nv_wr32(dev, 0x409840, 0xffffffff);
+	nv_wr32(dev, 0x409500, 0x00000000);
+	nv_wr32(dev, 0x409504, 0x00000025);
+	if (!nv_wait_ne(dev, 0x409800, 0xffffffff, 0x00000000)) {
+		NV_ERROR(dev, "fuc09 req 0x25 timeout\n");
+		return -EBUSY;
+	}
+
+	nv_wr32(dev, 0x409800, 0x00000000);
+	nv_wr32(dev, 0x409500, 0x00000001);
+	nv_wr32(dev, 0x409504, 0x00000030);
+	if (!nv_wait_ne(dev, 0x409800, 0xffffffff, 0x00000000)) {
+		NV_ERROR(dev, "fuc09 req 0x30 timeout\n");
+		return -EBUSY;
+	}
+
+	nv_wr32(dev, 0x409810, 0xb00095c8);
+	nv_wr32(dev, 0x409800, 0x00000000);
+	nv_wr32(dev, 0x409500, 0x00000001);
+	nv_wr32(dev, 0x409504, 0x00000031);
+	if (!nv_wait_ne(dev, 0x409800, 0xffffffff, 0x00000000)) {
+		NV_ERROR(dev, "fuc09 req 0x31 timeout\n");
+		return -EBUSY;
+	}
+
+	nv_wr32(dev, 0x409810, 0x00080420);
+	nv_wr32(dev, 0x409800, 0x00000000);
+	nv_wr32(dev, 0x409500, 0x00000001);
+	nv_wr32(dev, 0x409504, 0x00000032);
+	if (!nv_wait_ne(dev, 0x409800, 0xffffffff, 0x00000000)) {
+		NV_ERROR(dev, "fuc09 req 0x32 timeout\n");
+		return -EBUSY;
+	}
+
+	nv_wr32(dev, 0x409614, 0x00000070);
+	nv_wr32(dev, 0x409614, 0x00000770);
+	nv_wr32(dev, 0x40802c, 0x00000001);
+	return 0;
+}
+
+static int
+nve0_graph_init(struct drm_device *dev, int engine)
+{
+	int ret;
+
+	nv_mask(dev, 0x000200, 0x18001000, 0x00000000);
+	nv_mask(dev, 0x000200, 0x18001000, 0x18001000);
+
+	nve0_graph_init_obj418880(dev);
+	nve0_graph_init_regs(dev);
+	nve0_graph_init_gpc_0(dev);
+
+	nv_wr32(dev, 0x400500, 0x00010001);
+	nv_wr32(dev, 0x400100, 0xffffffff);
+	nv_wr32(dev, 0x40013c, 0xffffffff);
+
+	nve0_graph_init_units(dev);
+	nve0_graph_init_gpc_1(dev);
+	nve0_graph_init_rop(dev);
+
+	nv_wr32(dev, 0x400108, 0xffffffff);
+	nv_wr32(dev, 0x400138, 0xffffffff);
+	nv_wr32(dev, 0x400118, 0xffffffff);
+	nv_wr32(dev, 0x400130, 0xffffffff);
+	nv_wr32(dev, 0x40011c, 0xffffffff);
+	nv_wr32(dev, 0x400134, 0xffffffff);
+	nv_wr32(dev, 0x400054, 0x34ce3464);
+
+	ret = nve0_graph_init_ctxctl(dev);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+int
+nve0_graph_isr_chid(struct drm_device *dev, u64 inst)
+{
+	struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO);
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_channel *chan;
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&dev_priv->channels.lock, flags);
+	for (i = 0; i < pfifo->channels; i++) {
+		chan = dev_priv->channels.ptr[i];
+		if (!chan || !chan->ramin)
+			continue;
+
+		if (inst == chan->ramin->vinst)
+			break;
+	}
+	spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
+	return i;
+}
+
+static void
+nve0_graph_ctxctl_isr(struct drm_device *dev)
+{
+	u32 ustat = nv_rd32(dev, 0x409c18);
+
+	if (ustat & 0x00000001)
+		NV_INFO(dev, "PGRAPH: CTXCTRL ucode error\n");
+	if (ustat & 0x00080000)
+		NV_INFO(dev, "PGRAPH: CTXCTRL watchdog timeout\n");
+	if (ustat & ~0x00080001)
+		NV_INFO(dev, "PGRAPH: CTXCTRL 0x%08x\n", ustat);
+
+	nve0_graph_ctxctl_debug(dev);
+	nv_wr32(dev, 0x409c20, ustat);
+}
+
+static void
+nve0_graph_trap_isr(struct drm_device *dev, int chid)
+{
+	struct nve0_graph_priv *priv = nv_engine(dev, NVOBJ_ENGINE_GR);
+	u32 trap = nv_rd32(dev, 0x400108);
+	int rop;
+
+	if (trap & 0x00000001) {
+		u32 stat = nv_rd32(dev, 0x404000);
+		NV_INFO(dev, "PGRAPH: DISPATCH ch %d 0x%08x\n", chid, stat);
+		nv_wr32(dev, 0x404000, 0xc0000000);
+		nv_wr32(dev, 0x400108, 0x00000001);
+		trap &= ~0x00000001;
+	}
+
+	if (trap & 0x00000010) {
+		u32 stat = nv_rd32(dev, 0x405840);
+		NV_INFO(dev, "PGRAPH: SHADER ch %d 0x%08x\n", chid, stat);
+		nv_wr32(dev, 0x405840, 0xc0000000);
+		nv_wr32(dev, 0x400108, 0x00000010);
+		trap &= ~0x00000010;
+	}
+
+	if (trap & 0x02000000) {
+		for (rop = 0; rop < priv->rop_nr; rop++) {
+			u32 statz = nv_rd32(dev, ROP_UNIT(rop, 0x070));
+			u32 statc = nv_rd32(dev, ROP_UNIT(rop, 0x144));
+			NV_INFO(dev, "PGRAPH: ROP%d ch %d 0x%08x 0x%08x\n",
+				     rop, chid, statz, statc);
+			nv_wr32(dev, ROP_UNIT(rop, 0x070), 0xc0000000);
+			nv_wr32(dev, ROP_UNIT(rop, 0x144), 0xc0000000);
+		}
+		nv_wr32(dev, 0x400108, 0x02000000);
+		trap &= ~0x02000000;
+	}
+
+	if (trap) {
+		NV_INFO(dev, "PGRAPH: TRAP ch %d 0x%08x\n", chid, trap);
+		nv_wr32(dev, 0x400108, trap);
+	}
+}
+
+static void
+nve0_graph_isr(struct drm_device *dev)
+{
+	u64 inst = (u64)(nv_rd32(dev, 0x409b00) & 0x0fffffff) << 12;
+	u32 chid = nve0_graph_isr_chid(dev, inst);
+	u32 stat = nv_rd32(dev, 0x400100);
+	u32 addr = nv_rd32(dev, 0x400704);
+	u32 mthd = (addr & 0x00003ffc);
+	u32 subc = (addr & 0x00070000) >> 16;
+	u32 data = nv_rd32(dev, 0x400708);
+	u32 code = nv_rd32(dev, 0x400110);
+	u32 class = nv_rd32(dev, 0x404200 + (subc * 4));
+
+	if (stat & 0x00000010) {
+		if (nouveau_gpuobj_mthd_call2(dev, chid, class, mthd, data)) {
+			NV_INFO(dev, "PGRAPH: ILLEGAL_MTHD ch %d [0x%010llx] "
+				     "subc %d class 0x%04x mthd 0x%04x "
+				     "data 0x%08x\n",
+				chid, inst, subc, class, mthd, data);
+		}
+		nv_wr32(dev, 0x400100, 0x00000010);
+		stat &= ~0x00000010;
+	}
+
+	if (stat & 0x00000020) {
+		NV_INFO(dev, "PGRAPH: ILLEGAL_CLASS ch %d [0x%010llx] subc %d "
+			     "class 0x%04x mthd 0x%04x data 0x%08x\n",
+			chid, inst, subc, class, mthd, data);
+		nv_wr32(dev, 0x400100, 0x00000020);
+		stat &= ~0x00000020;
+	}
+
+	if (stat & 0x00100000) {
+		NV_INFO(dev, "PGRAPH: DATA_ERROR [");
+		nouveau_enum_print(nv50_data_error_names, code);
+		printk("] ch %d [0x%010llx] subc %d class 0x%04x "
+		       "mthd 0x%04x data 0x%08x\n",
+		       chid, inst, subc, class, mthd, data);
+		nv_wr32(dev, 0x400100, 0x00100000);
+		stat &= ~0x00100000;
+	}
+
+	if (stat & 0x00200000) {
+		nve0_graph_trap_isr(dev, chid);
+		nv_wr32(dev, 0x400100, 0x00200000);
+		stat &= ~0x00200000;
+	}
+
+	if (stat & 0x00080000) {
+		nve0_graph_ctxctl_isr(dev);
+		nv_wr32(dev, 0x400100, 0x00080000);
+		stat &= ~0x00080000;
+	}
+
+	if (stat) {
+		NV_INFO(dev, "PGRAPH: unknown stat 0x%08x\n", stat);
+		nv_wr32(dev, 0x400100, stat);
+	}
+
+	nv_wr32(dev, 0x400500, 0x00010001);
+}
+
+static int
+nve0_graph_create_fw(struct drm_device *dev, const char *fwname,
+		     struct nve0_graph_fuc *fuc)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	const struct firmware *fw;
+	char f[32];
+	int ret;
+
+	snprintf(f, sizeof(f), "nouveau/nv%02x_%s", dev_priv->chipset, fwname);
+	ret = request_firmware(&fw, f, &dev->pdev->dev);
+	if (ret)
+		return ret;
+
+	fuc->size = fw->size;
+	fuc->data = kmemdup(fw->data, fuc->size, GFP_KERNEL);
+	release_firmware(fw);
+	return (fuc->data != NULL) ? 0 : -ENOMEM;
+}
+
+static void
+nve0_graph_destroy_fw(struct nve0_graph_fuc *fuc)
+{
+	if (fuc->data) {
+		kfree(fuc->data);
+		fuc->data = NULL;
+	}
+}
+
+static void
+nve0_graph_destroy(struct drm_device *dev, int engine)
+{
+	struct nve0_graph_priv *priv = nv_engine(dev, engine);
+
+	nve0_graph_destroy_fw(&priv->fuc409c);
+	nve0_graph_destroy_fw(&priv->fuc409d);
+	nve0_graph_destroy_fw(&priv->fuc41ac);
+	nve0_graph_destroy_fw(&priv->fuc41ad);
+
+	nouveau_irq_unregister(dev, 12);
+
+	nouveau_gpuobj_ref(NULL, &priv->unk4188b8);
+	nouveau_gpuobj_ref(NULL, &priv->unk4188b4);
+
+	if (priv->grctx_vals)
+		kfree(priv->grctx_vals);
+
+	NVOBJ_ENGINE_DEL(dev, GR);
+	kfree(priv);
+}
+
+int
+nve0_graph_create(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nve0_graph_priv *priv;
+	int ret, gpc, i;
+	u32 kepler;
+
+	kepler = nve0_graph_class(dev);
+	if (!kepler) {
+		NV_ERROR(dev, "PGRAPH: unsupported chipset, please report!\n");
+		return 0;
+	}
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->base.destroy = nve0_graph_destroy;
+	priv->base.init = nve0_graph_init;
+	priv->base.fini = nve0_graph_fini;
+	priv->base.context_new = nve0_graph_context_new;
+	priv->base.context_del = nve0_graph_context_del;
+	priv->base.object_new = nve0_graph_object_new;
+
+	NVOBJ_ENGINE_ADD(dev, GR, &priv->base);
+	nouveau_irq_register(dev, 12, nve0_graph_isr);
+
+	NV_INFO(dev, "PGRAPH: using external firmware\n");
+	if (nve0_graph_create_fw(dev, "fuc409c", &priv->fuc409c) ||
+	    nve0_graph_create_fw(dev, "fuc409d", &priv->fuc409d) ||
+	    nve0_graph_create_fw(dev, "fuc41ac", &priv->fuc41ac) ||
+	    nve0_graph_create_fw(dev, "fuc41ad", &priv->fuc41ad)) {
+		ret = 0;
+		goto error;
+	}
+
+	ret = nouveau_gpuobj_new(dev, NULL, 0x1000, 256, 0, &priv->unk4188b4);
+	if (ret)
+		goto error;
+
+	ret = nouveau_gpuobj_new(dev, NULL, 0x1000, 256, 0, &priv->unk4188b8);
+	if (ret)
+		goto error;
+
+	for (i = 0; i < 0x1000; i += 4) {
+		nv_wo32(priv->unk4188b4, i, 0x00000010);
+		nv_wo32(priv->unk4188b8, i, 0x00000010);
+	}
+
+	priv->gpc_nr  =  nv_rd32(dev, 0x409604) & 0x0000001f;
+	priv->rop_nr = (nv_rd32(dev, 0x409604) & 0x001f0000) >> 16;
+	for (gpc = 0; gpc < priv->gpc_nr; gpc++) {
+		priv->tpc_nr[gpc] = nv_rd32(dev, GPC_UNIT(gpc, 0x2608));
+		priv->tpc_total += priv->tpc_nr[gpc];
+	}
+
+	switch (dev_priv->chipset) {
+	case 0xe4:
+		if (priv->tpc_total == 8)
+			priv->magic_not_rop_nr = 3;
+		else
+		if (priv->tpc_total == 7)
+			priv->magic_not_rop_nr = 1;
+		break;
+	case 0xe7:
+		priv->magic_not_rop_nr = 1;
+		break;
+	default:
+		break;
+	}
+
+	if (!priv->magic_not_rop_nr) {
+		NV_ERROR(dev, "PGRAPH: unknown config: %d/%d/%d/%d, %d\n",
+			 priv->tpc_nr[0], priv->tpc_nr[1], priv->tpc_nr[2],
+			 priv->tpc_nr[3], priv->rop_nr);
+		priv->magic_not_rop_nr = 0x00;
+	}
+
+	NVOBJ_CLASS(dev, 0xa097, GR); /* subc 0: 3D */
+	NVOBJ_CLASS(dev, 0xa0c0, GR); /* subc 1: COMPUTE */
+	NVOBJ_CLASS(dev, 0xa040, GR); /* subc 2: P2MF */
+	NVOBJ_CLASS(dev, 0x902d, GR); /* subc 3: 2D */
+	NVOBJ_CLASS(dev, 0xa0b5, GR); /* subc 4: COPY */
+	return 0;
+
+error:
+	nve0_graph_destroy(dev, NVOBJ_ENGINE_GR);
+	return ret;
+}