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, 0 insertions, 868 deletions

diff --git a/drivers/gpu/drm/nouveau/nv50_graph.c b/drivers/gpu/drm/nouveau/nv50_graph.c
deleted file mode 100644
index 437608d..0000000
--- a/drivers/gpu/drm/nouveau/nv50_graph.c
+++ /dev/null
@@ -1,868 +0,0 @@
-/*
- * Copyright (C) 2007 Ben Skeggs.
- * All Rights Reserved.
- *
- * 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 (including the
- * next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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.
- *
- */
-
-#include "drmP.h"
-#include "drm.h"
-#include "nouveau_drv.h"
-#include "nouveau_fifo.h"
-#include "nouveau_ramht.h"
-#include "nouveau_dma.h"
-#include "nouveau_vm.h"
-#include "nv50_evo.h"
-
-struct nv50_graph_engine {
-	struct nouveau_exec_engine base;
-	u32 ctxprog[512];
-	u32 ctxprog_size;
-	u32 grctx_size;
-};
-
-static int
-nv50_graph_init(struct drm_device *dev, int engine)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nv50_graph_engine *pgraph = nv_engine(dev, engine);
-	u32 units = nv_rd32(dev, 0x001540);
-	int i;
-
-	NV_DEBUG(dev, "\n");
-
-	/* master reset */
-	nv_mask(dev, 0x000200, 0x00201000, 0x00000000);
-	nv_mask(dev, 0x000200, 0x00201000, 0x00201000);
-	nv_wr32(dev, 0x40008c, 0x00000004); /* HW_CTX_SWITCH_ENABLED */
-
-	/* reset/enable traps and interrupts */
-	nv_wr32(dev, 0x400804, 0xc0000000);
-	nv_wr32(dev, 0x406800, 0xc0000000);
-	nv_wr32(dev, 0x400c04, 0xc0000000);
-	nv_wr32(dev, 0x401800, 0xc0000000);
-	nv_wr32(dev, 0x405018, 0xc0000000);
-	nv_wr32(dev, 0x402000, 0xc0000000);
-	for (i = 0; i < 16; i++) {
-		if (!(units & (1 << i)))
-			continue;
-
-		if (dev_priv->chipset < 0xa0) {
-			nv_wr32(dev, 0x408900 + (i << 12), 0xc0000000);
-			nv_wr32(dev, 0x408e08 + (i << 12), 0xc0000000);
-			nv_wr32(dev, 0x408314 + (i << 12), 0xc0000000);
-		} else {
-			nv_wr32(dev, 0x408600 + (i << 11), 0xc0000000);
-			nv_wr32(dev, 0x408708 + (i << 11), 0xc0000000);
-			nv_wr32(dev, 0x40831c + (i << 11), 0xc0000000);
-		}
-	}
-
-	nv_wr32(dev, 0x400108, 0xffffffff);
-	nv_wr32(dev, 0x400138, 0xffffffff);
-	nv_wr32(dev, 0x400100, 0xffffffff);
-	nv_wr32(dev, 0x40013c, 0xffffffff);
-	nv_wr32(dev, 0x400500, 0x00010001);
-
-	/* upload context program, initialise ctxctl defaults */
-	nv_wr32(dev, 0x400324, 0x00000000);
-	for (i = 0; i < pgraph->ctxprog_size; i++)
-		nv_wr32(dev, 0x400328, pgraph->ctxprog[i]);
-	nv_wr32(dev, 0x400824, 0x00000000);
-	nv_wr32(dev, 0x400828, 0x00000000);
-	nv_wr32(dev, 0x40082c, 0x00000000);
-	nv_wr32(dev, 0x400830, 0x00000000);
-	nv_wr32(dev, 0x400724, 0x00000000);
-	nv_wr32(dev, 0x40032c, 0x00000000);
-	nv_wr32(dev, 0x400320, 4);	/* CTXCTL_CMD = NEWCTXDMA */
-
-	/* some unknown zcull magic */
-	switch (dev_priv->chipset & 0xf0) {
-	case 0x50:
-	case 0x80:
-	case 0x90:
-		nv_wr32(dev, 0x402ca8, 0x00000800);
-		break;
-	case 0xa0:
-	default:
-		nv_wr32(dev, 0x402cc0, 0x00000000);
-		if (dev_priv->chipset == 0xa0 ||
-		    dev_priv->chipset == 0xaa ||
-		    dev_priv->chipset == 0xac) {
-			nv_wr32(dev, 0x402ca8, 0x00000802);
-		} else {
-			nv_wr32(dev, 0x402cc0, 0x00000000);
-			nv_wr32(dev, 0x402ca8, 0x00000002);
-		}
-
-		break;
-	}
-
-	/* zero out zcull regions */
-	for (i = 0; i < 8; i++) {
-		nv_wr32(dev, 0x402c20 + (i * 8), 0x00000000);
-		nv_wr32(dev, 0x402c24 + (i * 8), 0x00000000);
-		nv_wr32(dev, 0x402c28 + (i * 8), 0x00000000);
-		nv_wr32(dev, 0x402c2c + (i * 8), 0x00000000);
-	}
-
-	return 0;
-}
-
-static int
-nv50_graph_fini(struct drm_device *dev, int engine, bool suspend)
-{
-	nv_wr32(dev, 0x40013c, 0x00000000);
-	return 0;
-}
-
-static int
-nv50_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_gpuobj *ramin = chan->ramin;
-	struct nouveau_gpuobj *grctx = NULL;
-	struct nv50_graph_engine *pgraph = nv_engine(dev, engine);
-	int hdr, ret;
-
-	NV_DEBUG(dev, "ch%d\n", chan->id);
-
-	ret = nouveau_gpuobj_new(dev, NULL, pgraph->grctx_size, 0,
-				 NVOBJ_FLAG_ZERO_ALLOC |
-				 NVOBJ_FLAG_ZERO_FREE, &grctx);
-	if (ret)
-		return ret;
-
-	hdr = (dev_priv->chipset == 0x50) ? 0x200 : 0x20;
-	nv_wo32(ramin, hdr + 0x00, 0x00190002);
-	nv_wo32(ramin, hdr + 0x04, grctx->vinst + grctx->size - 1);
-	nv_wo32(ramin, hdr + 0x08, grctx->vinst);
-	nv_wo32(ramin, hdr + 0x0c, 0);
-	nv_wo32(ramin, hdr + 0x10, 0);
-	nv_wo32(ramin, hdr + 0x14, 0x00010000);
-
-	nv50_grctx_fill(dev, grctx);
-	nv_wo32(grctx, 0x00000, chan->ramin->vinst >> 12);
-
-	dev_priv->engine.instmem.flush(dev);
-
-	atomic_inc(&chan->vm->engref[NVOBJ_ENGINE_GR]);
-	chan->engctx[NVOBJ_ENGINE_GR] = grctx;
-	return 0;
-}
-
-static void
-nv50_graph_context_del(struct nouveau_channel *chan, int engine)
-{
-	struct nouveau_gpuobj *grctx = chan->engctx[engine];
-	struct drm_device *dev = chan->dev;
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	int i, hdr = (dev_priv->chipset == 0x50) ? 0x200 : 0x20;
-
-	for (i = hdr; i < hdr + 24; i += 4)
-		nv_wo32(chan->ramin, i, 0);
-	dev_priv->engine.instmem.flush(dev);
-
-	atomic_dec(&chan->vm->engref[engine]);
-	nouveau_gpuobj_ref(NULL, &grctx);
-	chan->engctx[engine] = NULL;
-}
-
-static int
-nv50_graph_object_new(struct nouveau_channel *chan, int engine,
-		      u32 handle, u16 class)
-{
-	struct drm_device *dev = chan->dev;
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpuobj *obj = NULL;
-	int ret;
-
-	ret = nouveau_gpuobj_new(dev, chan, 16, 16, NVOBJ_FLAG_ZERO_FREE, &obj);
-	if (ret)
-		return ret;
-	obj->engine = 1;
-	obj->class  = class;
-
-	nv_wo32(obj, 0x00, class);
-	nv_wo32(obj, 0x04, 0x00000000);
-	nv_wo32(obj, 0x08, 0x00000000);
-	nv_wo32(obj, 0x0c, 0x00000000);
-	dev_priv->engine.instmem.flush(dev);
-
-	ret = nouveau_ramht_insert(chan, handle, obj);
-	nouveau_gpuobj_ref(NULL, &obj);
-	return ret;
-}
-
-static void
-nv50_graph_tlb_flush(struct drm_device *dev, int engine)
-{
-	nv50_vm_flush_engine(dev, 0);
-}
-
-static void
-nv84_graph_tlb_flush(struct drm_device *dev, int engine)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
-	bool idle, timeout = false;
-	unsigned long flags;
-	u64 start;
-	u32 tmp;
-
-	spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
-	nv_mask(dev, 0x400500, 0x00000001, 0x00000000);
-
-	start = ptimer->read(dev);
-	do {
-		idle = true;
-
-		for (tmp = nv_rd32(dev, 0x400380); tmp && idle; tmp >>= 3) {
-			if ((tmp & 7) == 1)
-				idle = false;
-		}
-
-		for (tmp = nv_rd32(dev, 0x400384); tmp && idle; tmp >>= 3) {
-			if ((tmp & 7) == 1)
-				idle = false;
-		}
-
-		for (tmp = nv_rd32(dev, 0x400388); tmp && idle; tmp >>= 3) {
-			if ((tmp & 7) == 1)
-				idle = false;
-		}
-	} while (!idle && !(timeout = ptimer->read(dev) - start > 2000000000));
-
-	if (timeout) {
-		NV_ERROR(dev, "PGRAPH TLB flush idle timeout fail: "
-			      "0x%08x 0x%08x 0x%08x 0x%08x\n",
-			 nv_rd32(dev, 0x400700), nv_rd32(dev, 0x400380),
-			 nv_rd32(dev, 0x400384), nv_rd32(dev, 0x400388));
-	}
-
-	nv50_vm_flush_engine(dev, 0);
-
-	nv_mask(dev, 0x400500, 0x00000001, 0x00000001);
-	spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
-}
-
-static struct nouveau_enum nv50_mp_exec_error_names[] = {
-	{ 3, "STACK_UNDERFLOW", NULL },
-	{ 4, "QUADON_ACTIVE", NULL },
-	{ 8, "TIMEOUT", NULL },
-	{ 0x10, "INVALID_OPCODE", NULL },
-	{ 0x40, "BREAKPOINT", NULL },
-	{}
-};
-
-static struct nouveau_bitfield nv50_graph_trap_m2mf[] = {
-	{ 0x00000001, "NOTIFY" },
-	{ 0x00000002, "IN" },
-	{ 0x00000004, "OUT" },
-	{}
-};
-
-static struct nouveau_bitfield nv50_graph_trap_vfetch[] = {
-	{ 0x00000001, "FAULT" },
-	{}
-};
-
-static struct nouveau_bitfield nv50_graph_trap_strmout[] = {
-	{ 0x00000001, "FAULT" },
-	{}
-};
-
-static struct nouveau_bitfield nv50_graph_trap_ccache[] = {
-	{ 0x00000001, "FAULT" },
-	{}
-};
-
-/* There must be a *lot* of these. Will take some time to gather them up. */
-struct nouveau_enum nv50_data_error_names[] = {
-	{ 0x00000003, "INVALID_OPERATION", NULL },
-	{ 0x00000004, "INVALID_VALUE", NULL },
-	{ 0x00000005, "INVALID_ENUM", NULL },
-	{ 0x00000008, "INVALID_OBJECT", NULL },
-	{ 0x00000009, "READ_ONLY_OBJECT", NULL },
-	{ 0x0000000a, "SUPERVISOR_OBJECT", NULL },
-	{ 0x0000000b, "INVALID_ADDRESS_ALIGNMENT", NULL },
-	{ 0x0000000c, "INVALID_BITFIELD", NULL },
-	{ 0x0000000d, "BEGIN_END_ACTIVE", NULL },
-	{ 0x0000000e, "SEMANTIC_COLOR_BACK_OVER_LIMIT", NULL },
-	{ 0x0000000f, "VIEWPORT_ID_NEEDS_GP", NULL },
-	{ 0x00000010, "RT_DOUBLE_BIND", NULL },
-	{ 0x00000011, "RT_TYPES_MISMATCH", NULL },
-	{ 0x00000012, "RT_LINEAR_WITH_ZETA", NULL },
-	{ 0x00000015, "FP_TOO_FEW_REGS", NULL },
-	{ 0x00000016, "ZETA_FORMAT_CSAA_MISMATCH", NULL },
-	{ 0x00000017, "RT_LINEAR_WITH_MSAA", NULL },
-	{ 0x00000018, "FP_INTERPOLANT_START_OVER_LIMIT", NULL },
-	{ 0x00000019, "SEMANTIC_LAYER_OVER_LIMIT", NULL },
-	{ 0x0000001a, "RT_INVALID_ALIGNMENT", NULL },
-	{ 0x0000001b, "SAMPLER_OVER_LIMIT", NULL },
-	{ 0x0000001c, "TEXTURE_OVER_LIMIT", NULL },
-	{ 0x0000001e, "GP_TOO_MANY_OUTPUTS", NULL },
-	{ 0x0000001f, "RT_BPP128_WITH_MS8", NULL },
-	{ 0x00000021, "Z_OUT_OF_BOUNDS", NULL },
-	{ 0x00000023, "XY_OUT_OF_BOUNDS", NULL },
-	{ 0x00000024, "VP_ZERO_INPUTS", NULL },
-	{ 0x00000027, "CP_MORE_PARAMS_THAN_SHARED", NULL },
-	{ 0x00000028, "CP_NO_REG_SPACE_STRIPED", NULL },
-	{ 0x00000029, "CP_NO_REG_SPACE_PACKED", NULL },
-	{ 0x0000002a, "CP_NOT_ENOUGH_WARPS", NULL },
-	{ 0x0000002b, "CP_BLOCK_SIZE_MISMATCH", NULL },
-	{ 0x0000002c, "CP_NOT_ENOUGH_LOCAL_WARPS", NULL },
-	{ 0x0000002d, "CP_NOT_ENOUGH_STACK_WARPS", NULL },
-	{ 0x0000002e, "CP_NO_BLOCKDIM_LATCH", NULL },
-	{ 0x00000031, "ENG2D_FORMAT_MISMATCH", NULL },
-	{ 0x0000003f, "PRIMITIVE_ID_NEEDS_GP", NULL },
-	{ 0x00000044, "SEMANTIC_VIEWPORT_OVER_LIMIT", NULL },
-	{ 0x00000045, "SEMANTIC_COLOR_FRONT_OVER_LIMIT", NULL },
-	{ 0x00000046, "LAYER_ID_NEEDS_GP", NULL },
-	{ 0x00000047, "SEMANTIC_CLIP_OVER_LIMIT", NULL },
-	{ 0x00000048, "SEMANTIC_PTSZ_OVER_LIMIT", NULL },
-	{}
-};
-
-static struct nouveau_bitfield nv50_graph_intr[] = {
-	{ 0x00000001, "NOTIFY" },
-	{ 0x00000002, "COMPUTE_QUERY" },
-	{ 0x00000010, "ILLEGAL_MTHD" },
-	{ 0x00000020, "ILLEGAL_CLASS" },
-	{ 0x00000040, "DOUBLE_NOTIFY" },
-	{ 0x00001000, "CONTEXT_SWITCH" },
-	{ 0x00010000, "BUFFER_NOTIFY" },
-	{ 0x00100000, "DATA_ERROR" },
-	{ 0x00200000, "TRAP" },
-	{ 0x01000000, "SINGLE_STEP" },
-	{}
-};
-
-static void
-nv50_pgraph_mp_trap(struct drm_device *dev, int tpid, int display)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	uint32_t units = nv_rd32(dev, 0x1540);
-	uint32_t addr, mp10, status, pc, oplow, ophigh;
-	int i;
-	int mps = 0;
-	for (i = 0; i < 4; i++) {
-		if (!(units & 1 << (i+24)))
-			continue;
-		if (dev_priv->chipset < 0xa0)
-			addr = 0x408200 + (tpid << 12) + (i << 7);
-		else
-			addr = 0x408100 + (tpid << 11) + (i << 7);
-		mp10 = nv_rd32(dev, addr + 0x10);
-		status = nv_rd32(dev, addr + 0x14);
-		if (!status)
-			continue;
-		if (display) {
-			nv_rd32(dev, addr + 0x20);
-			pc = nv_rd32(dev, addr + 0x24);
-			oplow = nv_rd32(dev, addr + 0x70);
-			ophigh = nv_rd32(dev, addr + 0x74);
-			NV_INFO(dev, "PGRAPH_TRAP_MP_EXEC - "
-					"TP %d MP %d: ", tpid, i);
-			nouveau_enum_print(nv50_mp_exec_error_names, status);
-			printk(" at %06x warp %d, opcode %08x %08x\n",
-					pc&0xffffff, pc >> 24,
-					oplow, ophigh);
-		}
-		nv_wr32(dev, addr + 0x10, mp10);
-		nv_wr32(dev, addr + 0x14, 0);
-		mps++;
-	}
-	if (!mps && display)
-		NV_INFO(dev, "PGRAPH_TRAP_MP_EXEC - TP %d: "
-				"No MPs claiming errors?\n", tpid);
-}
-
-static void
-nv50_pgraph_tp_trap(struct drm_device *dev, int type, uint32_t ustatus_old,
-		uint32_t ustatus_new, int display, const char *name)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	int tps = 0;
-	uint32_t units = nv_rd32(dev, 0x1540);
-	int i, r;
-	uint32_t ustatus_addr, ustatus;
-	for (i = 0; i < 16; i++) {
-		if (!(units & (1 << i)))
-			continue;
-		if (dev_priv->chipset < 0xa0)
-			ustatus_addr = ustatus_old + (i << 12);
-		else
-			ustatus_addr = ustatus_new + (i << 11);
-		ustatus = nv_rd32(dev, ustatus_addr) & 0x7fffffff;
-		if (!ustatus)
-			continue;
-		tps++;
-		switch (type) {
-		case 6: /* texture error... unknown for now */
-			if (display) {
-				NV_ERROR(dev, "magic set %d:\n", i);
-				for (r = ustatus_addr + 4; r <= ustatus_addr + 0x10; r += 4)
-					NV_ERROR(dev, "\t0x%08x: 0x%08x\n", r,
-						nv_rd32(dev, r));
-			}
-			break;
-		case 7: /* MP error */
-			if (ustatus & 0x04030000) {
-				nv50_pgraph_mp_trap(dev, i, display);
-				ustatus &= ~0x04030000;
-			}
-			break;
-		case 8: /* TPDMA error */
-			{
-			uint32_t e0c = nv_rd32(dev, ustatus_addr + 4);
-			uint32_t e10 = nv_rd32(dev, ustatus_addr + 8);
-			uint32_t e14 = nv_rd32(dev, ustatus_addr + 0xc);
-			uint32_t e18 = nv_rd32(dev, ustatus_addr + 0x10);
-			uint32_t e1c = nv_rd32(dev, ustatus_addr + 0x14);
-			uint32_t e20 = nv_rd32(dev, ustatus_addr + 0x18);
-			uint32_t e24 = nv_rd32(dev, ustatus_addr + 0x1c);
-			/* 2d engine destination */
-			if (ustatus & 0x00000010) {
-				if (display) {
-					NV_INFO(dev, "PGRAPH_TRAP_TPDMA_2D - TP %d - Unknown fault at address %02x%08x\n",
-							i, e14, e10);
-					NV_INFO(dev, "PGRAPH_TRAP_TPDMA_2D - TP %d - e0c: %08x, e18: %08x, e1c: %08x, e20: %08x, e24: %08x\n",
-							i, e0c, e18, e1c, e20, e24);
-				}
-				ustatus &= ~0x00000010;
-			}
-			/* Render target */
-			if (ustatus & 0x00000040) {
-				if (display) {
-					NV_INFO(dev, "PGRAPH_TRAP_TPDMA_RT - TP %d - Unknown fault at address %02x%08x\n",
-							i, e14, e10);
-					NV_INFO(dev, "PGRAPH_TRAP_TPDMA_RT - TP %d - e0c: %08x, e18: %08x, e1c: %08x, e20: %08x, e24: %08x\n",
-							i, e0c, e18, e1c, e20, e24);
-				}
-				ustatus &= ~0x00000040;
-			}
-			/* CUDA memory: l[], g[] or stack. */
-			if (ustatus & 0x00000080) {
-				if (display) {
-					if (e18 & 0x80000000) {
-						/* g[] read fault? */
-						NV_INFO(dev, "PGRAPH_TRAP_TPDMA - TP %d - Global read fault at address %02x%08x\n",
-								i, e14, e10 | ((e18 >> 24) & 0x1f));
-						e18 &= ~0x1f000000;
-					} else if (e18 & 0xc) {
-						/* g[] write fault? */
-						NV_INFO(dev, "PGRAPH_TRAP_TPDMA - TP %d - Global write fault at address %02x%08x\n",
-								i, e14, e10 | ((e18 >> 7) & 0x1f));
-						e18 &= ~0x00000f80;
-					} else {
-						NV_INFO(dev, "PGRAPH_TRAP_TPDMA - TP %d - Unknown CUDA fault at address %02x%08x\n",
-								i, e14, e10);
-					}
-					NV_INFO(dev, "PGRAPH_TRAP_TPDMA - TP %d - e0c: %08x, e18: %08x, e1c: %08x, e20: %08x, e24: %08x\n",
-							i, e0c, e18, e1c, e20, e24);
-				}
-				ustatus &= ~0x00000080;
-			}
-			}
-			break;
-		}
-		if (ustatus) {
-			if (display)
-				NV_INFO(dev, "%s - TP%d: Unhandled ustatus 0x%08x\n", name, i, ustatus);
-		}
-		nv_wr32(dev, ustatus_addr, 0xc0000000);
-	}
-
-	if (!tps && display)
-		NV_INFO(dev, "%s - No TPs claiming errors?\n", name);
-}
-
-static int
-nv50_pgraph_trap_handler(struct drm_device *dev, u32 display, u64 inst, u32 chid)
-{
-	u32 status = nv_rd32(dev, 0x400108);
-	u32 ustatus;
-
-	if (!status && display) {
-		NV_INFO(dev, "PGRAPH - TRAP: no units reporting traps?\n");
-		return 1;
-	}
-
-	/* DISPATCH: Relays commands to other units and handles NOTIFY,
-	 * COND, QUERY. If you get a trap from it, the command is still stuck
-	 * in DISPATCH and you need to do something about it. */
-	if (status & 0x001) {
-		ustatus = nv_rd32(dev, 0x400804) & 0x7fffffff;
-		if (!ustatus && display) {
-			NV_INFO(dev, "PGRAPH_TRAP_DISPATCH - no ustatus?\n");
-		}
-
-		nv_wr32(dev, 0x400500, 0x00000000);
-
-		/* Known to be triggered by screwed up NOTIFY and COND... */
-		if (ustatus & 0x00000001) {
-			u32 addr = nv_rd32(dev, 0x400808);
-			u32 subc = (addr & 0x00070000) >> 16;
-			u32 mthd = (addr & 0x00001ffc);
-			u32 datal = nv_rd32(dev, 0x40080c);
-			u32 datah = nv_rd32(dev, 0x400810);
-			u32 class = nv_rd32(dev, 0x400814);
-			u32 r848 = nv_rd32(dev, 0x400848);
-
-			NV_INFO(dev, "PGRAPH - TRAP DISPATCH_FAULT\n");
-			if (display && (addr & 0x80000000)) {
-				NV_INFO(dev, "PGRAPH - ch %d (0x%010llx) "
-					     "subc %d class 0x%04x mthd 0x%04x "
-					     "data 0x%08x%08x "
-					     "400808 0x%08x 400848 0x%08x\n",
-					chid, inst, subc, class, mthd, datah,
-					datal, addr, r848);
-			} else
-			if (display) {
-				NV_INFO(dev, "PGRAPH - no stuck command?\n");
-			}
-
-			nv_wr32(dev, 0x400808, 0);
-			nv_wr32(dev, 0x4008e8, nv_rd32(dev, 0x4008e8) & 3);
-			nv_wr32(dev, 0x400848, 0);
-			ustatus &= ~0x00000001;
-		}
-
-		if (ustatus & 0x00000002) {
-			u32 addr = nv_rd32(dev, 0x40084c);
-			u32 subc = (addr & 0x00070000) >> 16;
-			u32 mthd = (addr & 0x00001ffc);
-			u32 data = nv_rd32(dev, 0x40085c);
-			u32 class = nv_rd32(dev, 0x400814);
-
-			NV_INFO(dev, "PGRAPH - TRAP DISPATCH_QUERY\n");
-			if (display && (addr & 0x80000000)) {
-				NV_INFO(dev, "PGRAPH - ch %d (0x%010llx) "
-					     "subc %d class 0x%04x mthd 0x%04x "
-					     "data 0x%08x 40084c 0x%08x\n",
-					chid, inst, subc, class, mthd,
-					data, addr);
-			} else
-			if (display) {
-				NV_INFO(dev, "PGRAPH - no stuck command?\n");
-			}
-
-			nv_wr32(dev, 0x40084c, 0);
-			ustatus &= ~0x00000002;
-		}
-
-		if (ustatus && display) {
-			NV_INFO(dev, "PGRAPH - TRAP_DISPATCH (unknown "
-				      "0x%08x)\n", ustatus);
-		}
-
-		nv_wr32(dev, 0x400804, 0xc0000000);
-		nv_wr32(dev, 0x400108, 0x001);
-		status &= ~0x001;
-		if (!status)
-			return 0;
-	}
-
-	/* M2MF: Memory to memory copy engine. */
-	if (status & 0x002) {
-		u32 ustatus = nv_rd32(dev, 0x406800) & 0x7fffffff;
-		if (display) {
-			NV_INFO(dev, "PGRAPH - TRAP_M2MF");
-			nouveau_bitfield_print(nv50_graph_trap_m2mf, ustatus);
-			printk("\n");
-			NV_INFO(dev, "PGRAPH - TRAP_M2MF %08x %08x %08x %08x\n",
-				nv_rd32(dev, 0x406804), nv_rd32(dev, 0x406808),
-				nv_rd32(dev, 0x40680c), nv_rd32(dev, 0x406810));
-
-		}
-
-		/* No sane way found yet -- just reset the bugger. */
-		nv_wr32(dev, 0x400040, 2);
-		nv_wr32(dev, 0x400040, 0);
-		nv_wr32(dev, 0x406800, 0xc0000000);
-		nv_wr32(dev, 0x400108, 0x002);
-		status &= ~0x002;
-	}
-
-	/* VFETCH: Fetches data from vertex buffers. */
-	if (status & 0x004) {
-		u32 ustatus = nv_rd32(dev, 0x400c04) & 0x7fffffff;
-		if (display) {
-			NV_INFO(dev, "PGRAPH - TRAP_VFETCH");
-			nouveau_bitfield_print(nv50_graph_trap_vfetch, ustatus);
-			printk("\n");
-			NV_INFO(dev, "PGRAPH - TRAP_VFETCH %08x %08x %08x %08x\n",
-				nv_rd32(dev, 0x400c00), nv_rd32(dev, 0x400c08),
-				nv_rd32(dev, 0x400c0c), nv_rd32(dev, 0x400c10));
-		}
-
-		nv_wr32(dev, 0x400c04, 0xc0000000);
-		nv_wr32(dev, 0x400108, 0x004);
-		status &= ~0x004;
-	}
-
-	/* STRMOUT: DirectX streamout / OpenGL transform feedback. */
-	if (status & 0x008) {
-		ustatus = nv_rd32(dev, 0x401800) & 0x7fffffff;
-		if (display) {
-			NV_INFO(dev, "PGRAPH - TRAP_STRMOUT");
-			nouveau_bitfield_print(nv50_graph_trap_strmout, ustatus);
-			printk("\n");
-			NV_INFO(dev, "PGRAPH - TRAP_STRMOUT %08x %08x %08x %08x\n",
-				nv_rd32(dev, 0x401804), nv_rd32(dev, 0x401808),
-				nv_rd32(dev, 0x40180c), nv_rd32(dev, 0x401810));
-
-		}
-
-		/* No sane way found yet -- just reset the bugger. */
-		nv_wr32(dev, 0x400040, 0x80);
-		nv_wr32(dev, 0x400040, 0);
-		nv_wr32(dev, 0x401800, 0xc0000000);
-		nv_wr32(dev, 0x400108, 0x008);
-		status &= ~0x008;
-	}
-
-	/* CCACHE: Handles code and c[] caches and fills them. */
-	if (status & 0x010) {
-		ustatus = nv_rd32(dev, 0x405018) & 0x7fffffff;
-		if (display) {
-			NV_INFO(dev, "PGRAPH - TRAP_CCACHE");
-			nouveau_bitfield_print(nv50_graph_trap_ccache, ustatus);
-			printk("\n");
-			NV_INFO(dev, "PGRAPH - TRAP_CCACHE %08x %08x %08x %08x"
-				     " %08x %08x %08x\n",
-				nv_rd32(dev, 0x405000), nv_rd32(dev, 0x405004),
-				nv_rd32(dev, 0x405008), nv_rd32(dev, 0x40500c),
-				nv_rd32(dev, 0x405010), nv_rd32(dev, 0x405014),
-				nv_rd32(dev, 0x40501c));
-
-		}
-
-		nv_wr32(dev, 0x405018, 0xc0000000);
-		nv_wr32(dev, 0x400108, 0x010);
-		status &= ~0x010;
-	}
-
-	/* Unknown, not seen yet... 0x402000 is the only trap status reg
-	 * remaining, so try to handle it anyway. Perhaps related to that
-	 * unknown DMA slot on tesla? */
-	if (status & 0x20) {
-		ustatus = nv_rd32(dev, 0x402000) & 0x7fffffff;
-		if (display)
-			NV_INFO(dev, "PGRAPH - TRAP_UNKC04 0x%08x\n", ustatus);
-		nv_wr32(dev, 0x402000, 0xc0000000);
-		/* no status modifiction on purpose */
-	}
-
-	/* TEXTURE: CUDA texturing units */
-	if (status & 0x040) {
-		nv50_pgraph_tp_trap(dev, 6, 0x408900, 0x408600, display,
-				    "PGRAPH - TRAP_TEXTURE");
-		nv_wr32(dev, 0x400108, 0x040);
-		status &= ~0x040;
-	}
-
-	/* MP: CUDA execution engines. */
-	if (status & 0x080) {
-		nv50_pgraph_tp_trap(dev, 7, 0x408314, 0x40831c, display,
-				    "PGRAPH - TRAP_MP");
-		nv_wr32(dev, 0x400108, 0x080);
-		status &= ~0x080;
-	}
-
-	/* TPDMA:  Handles TP-initiated uncached memory accesses:
-	 * l[], g[], stack, 2d surfaces, render targets. */
-	if (status & 0x100) {
-		nv50_pgraph_tp_trap(dev, 8, 0x408e08, 0x408708, display,
-				    "PGRAPH - TRAP_TPDMA");
-		nv_wr32(dev, 0x400108, 0x100);
-		status &= ~0x100;
-	}
-
-	if (status) {
-		if (display)
-			NV_INFO(dev, "PGRAPH - TRAP: unknown 0x%08x\n", status);
-		nv_wr32(dev, 0x400108, status);
-	}
-
-	return 1;
-}
-
-int
-nv50_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
-nv50_graph_isr(struct drm_device *dev)
-{
-	u32 stat;
-
-	while ((stat = nv_rd32(dev, 0x400100))) {
-		u64 inst = (u64)(nv_rd32(dev, 0x40032c) & 0x0fffffff) << 12;
-		u32 chid = nv50_graph_isr_chid(dev, inst);
-		u32 addr = nv_rd32(dev, NV04_PGRAPH_TRAPPED_ADDR);
-		u32 subc = (addr & 0x00070000) >> 16;
-		u32 mthd = (addr & 0x00001ffc);
-		u32 data = nv_rd32(dev, NV04_PGRAPH_TRAPPED_DATA);
-		u32 class = nv_rd32(dev, 0x400814);
-		u32 show = stat;
-
-		if (stat & 0x00000010) {
-			if (!nouveau_gpuobj_mthd_call2(dev, chid, class,
-						       mthd, data))
-				show &= ~0x00000010;
-		}
-
-		show = (show && nouveau_ratelimit()) ? show : 0;
-
-		if (show & 0x00100000) {
-			u32 ecode = nv_rd32(dev, 0x400110);
-			NV_INFO(dev, "PGRAPH - DATA_ERROR ");
-			nouveau_enum_print(nv50_data_error_names, ecode);
-			printk("\n");
-		}
-
-		if (stat & 0x00200000) {
-			if (!nv50_pgraph_trap_handler(dev, show, inst, chid))
-				show &= ~0x00200000;
-		}
-
-		nv_wr32(dev, 0x400100, stat);
-		nv_wr32(dev, 0x400500, 0x00010001);
-
-		if (show) {
-			NV_INFO(dev, "PGRAPH -");
-			nouveau_bitfield_print(nv50_graph_intr, show);
-			printk("\n");
-			NV_INFO(dev, "PGRAPH - ch %d (0x%010llx) subc %d "
-				     "class 0x%04x mthd 0x%04x data 0x%08x\n",
-				chid, inst, subc, class, mthd, data);
-			nv50_fb_vm_trap(dev, 1);
-		}
-	}
-
-	if (nv_rd32(dev, 0x400824) & (1 << 31))
-		nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) & ~(1 << 31));
-}
-
-static void
-nv50_graph_destroy(struct drm_device *dev, int engine)
-{
-	struct nv50_graph_engine *pgraph = nv_engine(dev, engine);
-
-	NVOBJ_ENGINE_DEL(dev, GR);
-
-	nouveau_irq_unregister(dev, 12);
-	kfree(pgraph);
-}
-
-int
-nv50_graph_create(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nv50_graph_engine *pgraph;
-	int ret;
-
-	pgraph = kzalloc(sizeof(*pgraph),GFP_KERNEL);
-	if (!pgraph)
-		return -ENOMEM;
-
-	ret = nv50_grctx_init(dev, pgraph->ctxprog, ARRAY_SIZE(pgraph->ctxprog),
-				  &pgraph->ctxprog_size,
-				  &pgraph->grctx_size);
-	if (ret) {
-		NV_ERROR(dev, "PGRAPH: ctxprog build failed\n");
-		kfree(pgraph);
-		return 0;
-	}
-
-	pgraph->base.destroy = nv50_graph_destroy;
-	pgraph->base.init = nv50_graph_init;
-	pgraph->base.fini = nv50_graph_fini;
-	pgraph->base.context_new = nv50_graph_context_new;
-	pgraph->base.context_del = nv50_graph_context_del;
-	pgraph->base.object_new = nv50_graph_object_new;
-	if (dev_priv->chipset == 0x50 || dev_priv->chipset == 0xac)
-		pgraph->base.tlb_flush = nv50_graph_tlb_flush;
-	else
-		pgraph->base.tlb_flush = nv84_graph_tlb_flush;
-
-	nouveau_irq_register(dev, 12, nv50_graph_isr);
-
-	NVOBJ_ENGINE_ADD(dev, GR, &pgraph->base);
-	NVOBJ_CLASS(dev, 0x0030, GR); /* null */
-	NVOBJ_CLASS(dev, 0x5039, GR); /* m2mf */
-	NVOBJ_CLASS(dev, 0x502d, GR); /* 2d */
-
-	/* tesla */
-	if (dev_priv->chipset == 0x50)
-		NVOBJ_CLASS(dev, 0x5097, GR); /* tesla (nv50) */
-	else
-	if (dev_priv->chipset < 0xa0)
-		NVOBJ_CLASS(dev, 0x8297, GR); /* tesla (nv8x/nv9x) */
-	else {
-		switch (dev_priv->chipset) {
-		case 0xa0:
-		case 0xaa:
-		case 0xac:
-			NVOBJ_CLASS(dev, 0x8397, GR);
-			break;
-		case 0xa3:
-		case 0xa5:
-		case 0xa8:
-			NVOBJ_CLASS(dev, 0x8597, GR);
-			break;
-		case 0xaf:
-			NVOBJ_CLASS(dev, 0x8697, GR);
-			break;
-		}
-	}
-
-	/* compute */
-	NVOBJ_CLASS(dev, 0x50c0, GR);
-	if (dev_priv->chipset  > 0xa0 &&
-	    dev_priv->chipset != 0xaa &&
-	    dev_priv->chipset != 0xac)
-		NVOBJ_CLASS(dev, 0x85c0, GR);
-
-	return 0;
-}