Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm merge (part 1) from Dave Airlie:
 "So first of all my tree and uapi stuff has a conflict mess, its my
  fault as the nouveau stuff didn't hit -next as were trying to rebase
  regressions out of it before we merged.

  Highlights:
   - SH mobile modesetting driver and associated helpers
   - some DRM core documentation
   - i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
     combined pte writing, ilk rc6 support,
   - nouveau: major driver rework into a hw core driver, makes features
     like SLI a lot saner to implement,
   - psb: add eDP/DP support for Cedarview
   - radeon: 2 layer page tables, async VM pte updates, better PLL
     selection for > 2 screens, better ACPI interactions

  The rest is general grab bag of fixes.

  So why part 1? well I have the exynos pull req which came in a bit
  late but was waiting for me to do something they shouldn't have and it
  looks fairly safe, and David Howells has some more header cleanups
  he'd like me to pull, that seem like a good idea, but I'd like to get
  this merge out of the way so -next dosen't get blocked."

Tons of conflicts mostly due to silly include line changes, but mostly
mindless.  A few other small semantic conflicts too, noted from Dave's
pre-merged branch.

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits)
  drm/nv98/crypt: fix fuc build with latest envyas
  drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
  drm/nv41/vm: fix and enable use of "real" pciegart
  drm/nv44/vm: fix and enable use of "real" pciegart
  drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
  drm/nouveau: store supported dma mask in vmmgr
  drm/nvc0/ibus: initial implementation of subdev
  drm/nouveau/therm: add support for fan-control modes
  drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
  drm/nouveau/therm: calculate the pwm divisor on nv50+
  drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
  drm/nouveau/therm: move thermal-related functions to the therm subdev
  drm/nouveau/bios: parse the pwm divisor from the perf table
  drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
  drm/nouveau/therm: rework thermal table parsing
  drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
  drm/nouveau: fix pm initialization order
  drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
  drm/nouveau: log channel debug/error messages from client object rather than drm client
  drm/nouveau: have drm debugging macros build on top of core macros
  ...

1 files changed, 888 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c b/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c
new file mode 100644
index 000000000000..ab3b9dcaf478
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nv50.c
@@ -0,0 +1,888 @@
+/*
+ * 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
+ */
+
+#include <core/os.h>
+#include <core/class.h>
+#include <core/handle.h>
+#include <core/engctx.h>
+#include <core/enum.h>
+
+#include <subdev/fb.h>
+#include <subdev/vm.h>
+#include <subdev/timer.h>
+
+#include <engine/fifo.h>
+#include <engine/graph.h>
+
+#include "nv50.h"
+
+struct nv50_graph_priv {
+	struct nouveau_graph base;
+	spinlock_t lock;
+	u32 size;
+};
+
+struct nv50_graph_chan {
+	struct nouveau_graph_chan base;
+};
+
+/*******************************************************************************
+ * Graphics object classes
+ ******************************************************************************/
+
+static int
+nv50_graph_object_ctor(struct nouveau_object *parent,
+		       struct nouveau_object *engine,
+		       struct nouveau_oclass *oclass, void *data, u32 size,
+		       struct nouveau_object **pobject)
+{
+	struct nouveau_gpuobj *obj;
+	int ret;
+
+	ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent,
+				    16, 16, 0, &obj);
+	*pobject = nv_object(obj);
+	if (ret)
+		return ret;
+
+	nv_wo32(obj, 0x00, nv_mclass(obj));
+	nv_wo32(obj, 0x04, 0x00000000);
+	nv_wo32(obj, 0x08, 0x00000000);
+	nv_wo32(obj, 0x0c, 0x00000000);
+	return 0;
+}
+
+static struct nouveau_ofuncs
+nv50_graph_ofuncs = {
+	.ctor = nv50_graph_object_ctor,
+	.dtor = _nouveau_gpuobj_dtor,
+	.init = _nouveau_gpuobj_init,
+	.fini = _nouveau_gpuobj_fini,
+	.rd32 = _nouveau_gpuobj_rd32,
+	.wr32 = _nouveau_gpuobj_wr32,
+};
+
+static struct nouveau_oclass
+nv50_graph_sclass[] = {
+	{ 0x0030, &nv50_graph_ofuncs },
+	{ 0x502d, &nv50_graph_ofuncs },
+	{ 0x5039, &nv50_graph_ofuncs },
+	{ 0x5097, &nv50_graph_ofuncs },
+	{ 0x50c0, &nv50_graph_ofuncs },
+	{}
+};
+
+static struct nouveau_oclass
+nv84_graph_sclass[] = {
+	{ 0x0030, &nv50_graph_ofuncs },
+	{ 0x502d, &nv50_graph_ofuncs },
+	{ 0x5039, &nv50_graph_ofuncs },
+	{ 0x50c0, &nv50_graph_ofuncs },
+	{ 0x8297, &nv50_graph_ofuncs },
+	{}
+};
+
+static struct nouveau_oclass
+nva0_graph_sclass[] = {
+	{ 0x0030, &nv50_graph_ofuncs },
+	{ 0x502d, &nv50_graph_ofuncs },
+	{ 0x5039, &nv50_graph_ofuncs },
+	{ 0x50c0, &nv50_graph_ofuncs },
+	{ 0x8397, &nv50_graph_ofuncs },
+	{}
+};
+
+static struct nouveau_oclass
+nva3_graph_sclass[] = {
+	{ 0x0030, &nv50_graph_ofuncs },
+	{ 0x502d, &nv50_graph_ofuncs },
+	{ 0x5039, &nv50_graph_ofuncs },
+	{ 0x50c0, &nv50_graph_ofuncs },
+	{ 0x8597, &nv50_graph_ofuncs },
+	{ 0x85c0, &nv50_graph_ofuncs },
+	{}
+};
+
+static struct nouveau_oclass
+nvaf_graph_sclass[] = {
+	{ 0x0030, &nv50_graph_ofuncs },
+	{ 0x502d, &nv50_graph_ofuncs },
+	{ 0x5039, &nv50_graph_ofuncs },
+	{ 0x50c0, &nv50_graph_ofuncs },
+	{ 0x85c0, &nv50_graph_ofuncs },
+	{ 0x8697, &nv50_graph_ofuncs },
+	{}
+};
+
+/*******************************************************************************
+ * PGRAPH context
+ ******************************************************************************/
+
+static int
+nv50_graph_context_ctor(struct nouveau_object *parent,
+			struct nouveau_object *engine,
+			struct nouveau_oclass *oclass, void *data, u32 size,
+			struct nouveau_object **pobject)
+{
+	struct nv50_graph_priv *priv = (void *)engine;
+	struct nv50_graph_chan *chan;
+	int ret;
+
+	ret = nouveau_graph_context_create(parent, engine, oclass, NULL,
+					   priv->size, 0,
+					   NVOBJ_FLAG_ZERO_ALLOC, &chan);
+	*pobject = nv_object(chan);
+	if (ret)
+		return ret;
+
+	nv50_grctx_fill(nv_device(priv), nv_gpuobj(chan));
+	return 0;
+}
+
+static struct nouveau_oclass
+nv50_graph_cclass = {
+	.handle = NV_ENGCTX(GR, 0x50),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv50_graph_context_ctor,
+		.dtor = _nouveau_graph_context_dtor,
+		.init = _nouveau_graph_context_init,
+		.fini = _nouveau_graph_context_fini,
+		.rd32 = _nouveau_graph_context_rd32,
+		.wr32 = _nouveau_graph_context_wr32,
+	},
+};
+
+/*******************************************************************************
+ * PGRAPH engine/subdev functions
+ ******************************************************************************/
+
+static int
+nv50_graph_tlb_flush(struct nouveau_engine *engine)
+{
+	nv50_vm_flush_engine(&engine->base, 0x00);
+	return 0;
+}
+
+static int
+nv84_graph_tlb_flush(struct nouveau_engine *engine)
+{
+	struct nouveau_timer *ptimer = nouveau_timer(engine);
+	struct nv50_graph_priv *priv = (void *)engine;
+	bool idle, timeout = false;
+	unsigned long flags;
+	u64 start;
+	u32 tmp;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	nv_mask(priv, 0x400500, 0x00000001, 0x00000000);
+
+	start = ptimer->read(ptimer);
+	do {
+		idle = true;
+
+		for (tmp = nv_rd32(priv, 0x400380); tmp && idle; tmp >>= 3) {
+			if ((tmp & 7) == 1)
+				idle = false;
+		}
+
+		for (tmp = nv_rd32(priv, 0x400384); tmp && idle; tmp >>= 3) {
+			if ((tmp & 7) == 1)
+				idle = false;
+		}
+
+		for (tmp = nv_rd32(priv, 0x400388); tmp && idle; tmp >>= 3) {
+			if ((tmp & 7) == 1)
+				idle = false;
+		}
+	} while (!idle &&
+		 !(timeout = ptimer->read(ptimer) - start > 2000000000));
+
+	if (timeout) {
+		nv_error(priv, "PGRAPH TLB flush idle timeout fail: "
+			      "0x%08x 0x%08x 0x%08x 0x%08x\n",
+			 nv_rd32(priv, 0x400700), nv_rd32(priv, 0x400380),
+			 nv_rd32(priv, 0x400384), nv_rd32(priv, 0x400388));
+	}
+
+	nv50_vm_flush_engine(&engine->base, 0x00);
+
+	nv_mask(priv, 0x400500, 0x00000001, 0x00000001);
+	spin_unlock_irqrestore(&priv->lock, flags);
+	return timeout ? -EBUSY : 0;
+}
+
+static const 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 const struct nouveau_bitfield nv50_graph_trap_m2mf[] = {
+	{ 0x00000001, "NOTIFY" },
+	{ 0x00000002, "IN" },
+	{ 0x00000004, "OUT" },
+	{}
+};
+
+static const struct nouveau_bitfield nv50_graph_trap_vfetch[] = {
+	{ 0x00000001, "FAULT" },
+	{}
+};
+
+static const struct nouveau_bitfield nv50_graph_trap_strmout[] = {
+	{ 0x00000001, "FAULT" },
+	{}
+};
+
+static const struct nouveau_bitfield nv50_graph_trap_ccache[] = {
+	{ 0x00000001, "FAULT" },
+	{}
+};
+
+/* There must be a *lot* of these. Will take some time to gather them up. */
+const 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 const struct nouveau_bitfield nv50_graph_intr_name[] = {
+	{ 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_priv_mp_trap(struct nv50_graph_priv *priv, int tpid, int display)
+{
+	u32 units = nv_rd32(priv, 0x1540);
+	u32 addr, mp10, status, pc, oplow, ophigh;
+	int i;
+	int mps = 0;
+	for (i = 0; i < 4; i++) {
+		if (!(units & 1 << (i+24)))
+			continue;
+		if (nv_device(priv)->chipset < 0xa0)
+			addr = 0x408200 + (tpid << 12) + (i << 7);
+		else
+			addr = 0x408100 + (tpid << 11) + (i << 7);
+		mp10 = nv_rd32(priv, addr + 0x10);
+		status = nv_rd32(priv, addr + 0x14);
+		if (!status)
+			continue;
+		if (display) {
+			nv_rd32(priv, addr + 0x20);
+			pc = nv_rd32(priv, addr + 0x24);
+			oplow = nv_rd32(priv, addr + 0x70);
+			ophigh = nv_rd32(priv, addr + 0x74);
+			nv_error(priv, "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(priv, addr + 0x10, mp10);
+		nv_wr32(priv, addr + 0x14, 0);
+		mps++;
+	}
+	if (!mps && display)
+		nv_error(priv, "TRAP_MP_EXEC - TP %d: "
+				"No MPs claiming errors?\n", tpid);
+}
+
+static void
+nv50_priv_tp_trap(struct nv50_graph_priv *priv, int type, u32 ustatus_old,
+		u32 ustatus_new, int display, const char *name)
+{
+	int tps = 0;
+	u32 units = nv_rd32(priv, 0x1540);
+	int i, r;
+	u32 ustatus_addr, ustatus;
+	for (i = 0; i < 16; i++) {
+		if (!(units & (1 << i)))
+			continue;
+		if (nv_device(priv)->chipset < 0xa0)
+			ustatus_addr = ustatus_old + (i << 12);
+		else
+			ustatus_addr = ustatus_new + (i << 11);
+		ustatus = nv_rd32(priv, ustatus_addr) & 0x7fffffff;
+		if (!ustatus)
+			continue;
+		tps++;
+		switch (type) {
+		case 6: /* texture error... unknown for now */
+			if (display) {
+				nv_error(priv, "magic set %d:\n", i);
+				for (r = ustatus_addr + 4; r <= ustatus_addr + 0x10; r += 4)
+					nv_error(priv, "\t0x%08x: 0x%08x\n", r,
+						nv_rd32(priv, r));
+			}
+			break;
+		case 7: /* MP error */
+			if (ustatus & 0x04030000) {
+				nv50_priv_mp_trap(priv, i, display);
+				ustatus &= ~0x04030000;
+			}
+			break;
+		case 8: /* TPDMA error */
+			{
+			u32 e0c = nv_rd32(priv, ustatus_addr + 4);
+			u32 e10 = nv_rd32(priv, ustatus_addr + 8);
+			u32 e14 = nv_rd32(priv, ustatus_addr + 0xc);
+			u32 e18 = nv_rd32(priv, ustatus_addr + 0x10);
+			u32 e1c = nv_rd32(priv, ustatus_addr + 0x14);
+			u32 e20 = nv_rd32(priv, ustatus_addr + 0x18);
+			u32 e24 = nv_rd32(priv, ustatus_addr + 0x1c);
+			/* 2d engine destination */
+			if (ustatus & 0x00000010) {
+				if (display) {
+					nv_error(priv, "TRAP_TPDMA_2D - TP %d - Unknown fault at address %02x%08x\n",
+							i, e14, e10);
+					nv_error(priv, "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_error(priv, "TRAP_TPDMA_RT - TP %d - Unknown fault at address %02x%08x\n",
+							i, e14, e10);
+					nv_error(priv, "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_error(priv, "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_error(priv, "TRAP_TPDMA - TP %d - Global write fault at address %02x%08x\n",
+								i, e14, e10 | ((e18 >> 7) & 0x1f));
+						e18 &= ~0x00000f80;
+					} else {
+						nv_error(priv, "TRAP_TPDMA - TP %d - Unknown CUDA fault at address %02x%08x\n",
+								i, e14, e10);
+					}
+					nv_error(priv, "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(priv, "%s - TP%d: Unhandled ustatus 0x%08x\n", name, i, ustatus);
+		}
+		nv_wr32(priv, ustatus_addr, 0xc0000000);
+	}
+
+	if (!tps && display)
+		nv_info(priv, "%s - No TPs claiming errors?\n", name);
+}
+
+static int
+nv50_graph_trap_handler(struct nv50_graph_priv *priv, u32 display,
+			int chid, u64 inst)
+{
+	u32 status = nv_rd32(priv, 0x400108);
+	u32 ustatus;
+
+	if (!status && display) {
+		nv_error(priv, "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(priv, 0x400804) & 0x7fffffff;
+		if (!ustatus && display) {
+			nv_error(priv, "TRAP_DISPATCH - no ustatus?\n");
+		}
+
+		nv_wr32(priv, 0x400500, 0x00000000);
+
+		/* Known to be triggered by screwed up NOTIFY and COND... */
+		if (ustatus & 0x00000001) {
+			u32 addr = nv_rd32(priv, 0x400808);
+			u32 subc = (addr & 0x00070000) >> 16;
+			u32 mthd = (addr & 0x00001ffc);
+			u32 datal = nv_rd32(priv, 0x40080c);
+			u32 datah = nv_rd32(priv, 0x400810);
+			u32 class = nv_rd32(priv, 0x400814);
+			u32 r848 = nv_rd32(priv, 0x400848);
+
+			nv_error(priv, "TRAP DISPATCH_FAULT\n");
+			if (display && (addr & 0x80000000)) {
+				nv_error(priv, "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_error(priv, "no stuck command?\n");
+			}
+
+			nv_wr32(priv, 0x400808, 0);
+			nv_wr32(priv, 0x4008e8, nv_rd32(priv, 0x4008e8) & 3);
+			nv_wr32(priv, 0x400848, 0);
+			ustatus &= ~0x00000001;
+		}
+
+		if (ustatus & 0x00000002) {
+			u32 addr = nv_rd32(priv, 0x40084c);
+			u32 subc = (addr & 0x00070000) >> 16;
+			u32 mthd = (addr & 0x00001ffc);
+			u32 data = nv_rd32(priv, 0x40085c);
+			u32 class = nv_rd32(priv, 0x400814);
+
+			nv_error(priv, "TRAP DISPATCH_QUERY\n");
+			if (display && (addr & 0x80000000)) {
+				nv_error(priv, "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_error(priv, "no stuck command?\n");
+			}
+
+			nv_wr32(priv, 0x40084c, 0);
+			ustatus &= ~0x00000002;
+		}
+
+		if (ustatus && display) {
+			nv_error(priv, "TRAP_DISPATCH (unknown "
+				      "0x%08x)\n", ustatus);
+		}
+
+		nv_wr32(priv, 0x400804, 0xc0000000);
+		nv_wr32(priv, 0x400108, 0x001);
+		status &= ~0x001;
+		if (!status)
+			return 0;
+	}
+
+	/* M2MF: Memory to memory copy engine. */
+	if (status & 0x002) {
+		u32 ustatus = nv_rd32(priv, 0x406800) & 0x7fffffff;
+		if (display) {
+			nv_error(priv, "TRAP_M2MF");
+			nouveau_bitfield_print(nv50_graph_trap_m2mf, ustatus);
+			printk("\n");
+			nv_error(priv, "TRAP_M2MF %08x %08x %08x %08x\n",
+				nv_rd32(priv, 0x406804), nv_rd32(priv, 0x406808),
+				nv_rd32(priv, 0x40680c), nv_rd32(priv, 0x406810));
+
+		}
+
+		/* No sane way found yet -- just reset the bugger. */
+		nv_wr32(priv, 0x400040, 2);
+		nv_wr32(priv, 0x400040, 0);
+		nv_wr32(priv, 0x406800, 0xc0000000);
+		nv_wr32(priv, 0x400108, 0x002);
+		status &= ~0x002;
+	}
+
+	/* VFETCH: Fetches data from vertex buffers. */
+	if (status & 0x004) {
+		u32 ustatus = nv_rd32(priv, 0x400c04) & 0x7fffffff;
+		if (display) {
+			nv_error(priv, "TRAP_VFETCH");
+			nouveau_bitfield_print(nv50_graph_trap_vfetch, ustatus);
+			printk("\n");
+			nv_error(priv, "TRAP_VFETCH %08x %08x %08x %08x\n",
+				nv_rd32(priv, 0x400c00), nv_rd32(priv, 0x400c08),
+				nv_rd32(priv, 0x400c0c), nv_rd32(priv, 0x400c10));
+		}
+
+		nv_wr32(priv, 0x400c04, 0xc0000000);
+		nv_wr32(priv, 0x400108, 0x004);
+		status &= ~0x004;
+	}
+
+	/* STRMOUT: DirectX streamout / OpenGL transform feedback. */
+	if (status & 0x008) {
+		ustatus = nv_rd32(priv, 0x401800) & 0x7fffffff;
+		if (display) {
+			nv_error(priv, "TRAP_STRMOUT");
+			nouveau_bitfield_print(nv50_graph_trap_strmout, ustatus);
+			printk("\n");
+			nv_error(priv, "TRAP_STRMOUT %08x %08x %08x %08x\n",
+				nv_rd32(priv, 0x401804), nv_rd32(priv, 0x401808),
+				nv_rd32(priv, 0x40180c), nv_rd32(priv, 0x401810));
+
+		}
+
+		/* No sane way found yet -- just reset the bugger. */
+		nv_wr32(priv, 0x400040, 0x80);
+		nv_wr32(priv, 0x400040, 0);
+		nv_wr32(priv, 0x401800, 0xc0000000);
+		nv_wr32(priv, 0x400108, 0x008);
+		status &= ~0x008;
+	}
+
+	/* CCACHE: Handles code and c[] caches and fills them. */
+	if (status & 0x010) {
+		ustatus = nv_rd32(priv, 0x405018) & 0x7fffffff;
+		if (display) {
+			nv_error(priv, "TRAP_CCACHE");
+			nouveau_bitfield_print(nv50_graph_trap_ccache, ustatus);
+			printk("\n");
+			nv_error(priv, "TRAP_CCACHE %08x %08x %08x %08x"
+				     " %08x %08x %08x\n",
+				nv_rd32(priv, 0x405000), nv_rd32(priv, 0x405004),
+				nv_rd32(priv, 0x405008), nv_rd32(priv, 0x40500c),
+				nv_rd32(priv, 0x405010), nv_rd32(priv, 0x405014),
+				nv_rd32(priv, 0x40501c));
+
+		}
+
+		nv_wr32(priv, 0x405018, 0xc0000000);
+		nv_wr32(priv, 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(priv, 0x402000) & 0x7fffffff;
+		if (display)
+			nv_error(priv, "TRAP_UNKC04 0x%08x\n", ustatus);
+		nv_wr32(priv, 0x402000, 0xc0000000);
+		/* no status modifiction on purpose */
+	}
+
+	/* TEXTURE: CUDA texturing units */
+	if (status & 0x040) {
+		nv50_priv_tp_trap(priv, 6, 0x408900, 0x408600, display,
+				    "TRAP_TEXTURE");
+		nv_wr32(priv, 0x400108, 0x040);
+		status &= ~0x040;
+	}
+
+	/* MP: CUDA execution engines. */
+	if (status & 0x080) {
+		nv50_priv_tp_trap(priv, 7, 0x408314, 0x40831c, display,
+				    "TRAP_MP");
+		nv_wr32(priv, 0x400108, 0x080);
+		status &= ~0x080;
+	}
+
+	/* TPDMA:  Handles TP-initiated uncached memory accesses:
+	 * l[], g[], stack, 2d surfaces, render targets. */
+	if (status & 0x100) {
+		nv50_priv_tp_trap(priv, 8, 0x408e08, 0x408708, display,
+				    "TRAP_TPDMA");
+		nv_wr32(priv, 0x400108, 0x100);
+		status &= ~0x100;
+	}
+
+	if (status) {
+		if (display)
+			nv_error(priv, "TRAP: unknown 0x%08x\n", status);
+		nv_wr32(priv, 0x400108, status);
+	}
+
+	return 1;
+}
+
+static void
+nv50_graph_intr(struct nouveau_subdev *subdev)
+{
+	struct nouveau_fifo *pfifo = nouveau_fifo(subdev);
+	struct nouveau_engine *engine = nv_engine(subdev);
+	struct nouveau_object *engctx;
+	struct nouveau_handle *handle = NULL;
+	struct nv50_graph_priv *priv = (void *)subdev;
+	u32 stat = nv_rd32(priv, 0x400100);
+	u32 inst = nv_rd32(priv, 0x40032c) & 0x0fffffff;
+	u32 addr = nv_rd32(priv, 0x400704);
+	u32 subc = (addr & 0x00070000) >> 16;
+	u32 mthd = (addr & 0x00001ffc);
+	u32 data = nv_rd32(priv, 0x400708);
+	u32 class = nv_rd32(priv, 0x400814);
+	u32 show = stat;
+	int chid;
+
+	engctx = nouveau_engctx_get(engine, inst);
+	chid   = pfifo->chid(pfifo, engctx);
+
+	if (stat & 0x00000010) {
+		handle = nouveau_handle_get_class(engctx, class);
+		if (handle && !nv_call(handle->object, mthd, data))
+			show &= ~0x00000010;
+		nouveau_handle_put(handle);
+	}
+
+	if (show & 0x00100000) {
+		u32 ecode = nv_rd32(priv, 0x400110);
+		nv_error(priv, "DATA_ERROR ");
+		nouveau_enum_print(nv50_data_error_names, ecode);
+		printk("\n");
+	}
+
+	if (stat & 0x00200000) {
+		if (!nv50_graph_trap_handler(priv, show, chid, (u64)inst << 12))
+			show &= ~0x00200000;
+	}
+
+	nv_wr32(priv, 0x400100, stat);
+	nv_wr32(priv, 0x400500, 0x00010001);
+
+	if (show) {
+		nv_info(priv, "");
+		nouveau_bitfield_print(nv50_graph_intr_name, show);
+		printk("\n");
+		nv_error(priv, "ch %d [0x%010llx] subc %d class 0x%04x "
+			       "mthd 0x%04x data 0x%08x\n",
+			 chid, (u64)inst << 12, subc, class, mthd, data);
+		nv50_fb_trap(nouveau_fb(priv), 1);
+	}
+
+	if (nv_rd32(priv, 0x400824) & (1 << 31))
+		nv_wr32(priv, 0x400824, nv_rd32(priv, 0x400824) & ~(1 << 31));
+
+	nouveau_engctx_put(engctx);
+}
+
+static int
+nv50_graph_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	       struct nouveau_oclass *oclass, void *data, u32 size,
+	       struct nouveau_object **pobject)
+{
+	struct nv50_graph_priv *priv;
+	int ret;
+
+	ret = nouveau_graph_create(parent, engine, oclass, true, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->unit = 0x00201000;
+	nv_subdev(priv)->intr = nv50_graph_intr;
+	nv_engine(priv)->cclass = &nv50_graph_cclass;
+
+	switch (nv_device(priv)->chipset) {
+	case 0x50:
+		nv_engine(priv)->sclass = nv50_graph_sclass;
+		break;
+	case 0x84:
+	case 0x86:
+	case 0x92:
+	case 0x94:
+	case 0x96:
+	case 0x98:
+		nv_engine(priv)->sclass = nv84_graph_sclass;
+		break;
+	case 0xa0:
+	case 0xaa:
+	case 0xac:
+		nv_engine(priv)->sclass = nva0_graph_sclass;
+		break;
+	case 0xa3:
+	case 0xa5:
+	case 0xa8:
+		nv_engine(priv)->sclass = nva3_graph_sclass;
+		break;
+	case 0xaf:
+		nv_engine(priv)->sclass = nvaf_graph_sclass;
+		break;
+
+	};
+
+	if (nv_device(priv)->chipset == 0x50 ||
+	    nv_device(priv)->chipset == 0xac)
+		nv_engine(priv)->tlb_flush = nv50_graph_tlb_flush;
+	else
+		nv_engine(priv)->tlb_flush = nv84_graph_tlb_flush;
+
+	spin_lock_init(&priv->lock);
+	return 0;
+}
+
+static int
+nv50_graph_init(struct nouveau_object *object)
+{
+	struct nv50_graph_priv *priv = (void *)object;
+	int ret, units, i;
+
+	ret = nouveau_graph_init(&priv->base);
+	if (ret)
+		return ret;
+
+	/* NV_PGRAPH_DEBUG_3_HW_CTX_SWITCH_ENABLED */
+	nv_wr32(priv, 0x40008c, 0x00000004);
+
+	/* reset/enable traps and interrupts */
+	nv_wr32(priv, 0x400804, 0xc0000000);
+	nv_wr32(priv, 0x406800, 0xc0000000);
+	nv_wr32(priv, 0x400c04, 0xc0000000);
+	nv_wr32(priv, 0x401800, 0xc0000000);
+	nv_wr32(priv, 0x405018, 0xc0000000);
+	nv_wr32(priv, 0x402000, 0xc0000000);
+
+	units = nv_rd32(priv, 0x001540);
+	for (i = 0; i < 16; i++) {
+		if (!(units & (1 << i)))
+			continue;
+
+		if (nv_device(priv)->chipset < 0xa0) {
+			nv_wr32(priv, 0x408900 + (i << 12), 0xc0000000);
+			nv_wr32(priv, 0x408e08 + (i << 12), 0xc0000000);
+			nv_wr32(priv, 0x408314 + (i << 12), 0xc0000000);
+		} else {
+			nv_wr32(priv, 0x408600 + (i << 11), 0xc0000000);
+			nv_wr32(priv, 0x408708 + (i << 11), 0xc0000000);
+			nv_wr32(priv, 0x40831c + (i << 11), 0xc0000000);
+		}
+	}
+
+	nv_wr32(priv, 0x400108, 0xffffffff);
+	nv_wr32(priv, 0x400138, 0xffffffff);
+	nv_wr32(priv, 0x400100, 0xffffffff);
+	nv_wr32(priv, 0x40013c, 0xffffffff);
+	nv_wr32(priv, 0x400500, 0x00010001);
+
+	/* upload context program, initialise ctxctl defaults */
+	ret = nv50_grctx_init(nv_device(priv), &priv->size);
+	if (ret)
+		return ret;
+
+	nv_wr32(priv, 0x400824, 0x00000000);
+	nv_wr32(priv, 0x400828, 0x00000000);
+	nv_wr32(priv, 0x40082c, 0x00000000);
+	nv_wr32(priv, 0x400830, 0x00000000);
+	nv_wr32(priv, 0x400724, 0x00000000);
+	nv_wr32(priv, 0x40032c, 0x00000000);
+	nv_wr32(priv, 0x400320, 4);	/* CTXCTL_CMD = NEWCTXDMA */
+
+	/* some unknown zcull magic */
+	switch (nv_device(priv)->chipset & 0xf0) {
+	case 0x50:
+	case 0x80:
+	case 0x90:
+		nv_wr32(priv, 0x402ca8, 0x00000800);
+		break;
+	case 0xa0:
+	default:
+		nv_wr32(priv, 0x402cc0, 0x00000000);
+		if (nv_device(priv)->chipset == 0xa0 ||
+		    nv_device(priv)->chipset == 0xaa ||
+		    nv_device(priv)->chipset == 0xac) {
+			nv_wr32(priv, 0x402ca8, 0x00000802);
+		} else {
+			nv_wr32(priv, 0x402cc0, 0x00000000);
+			nv_wr32(priv, 0x402ca8, 0x00000002);
+		}
+
+		break;
+	}
+
+	/* zero out zcull regions */
+	for (i = 0; i < 8; i++) {
+		nv_wr32(priv, 0x402c20 + (i * 8), 0x00000000);
+		nv_wr32(priv, 0x402c24 + (i * 8), 0x00000000);
+		nv_wr32(priv, 0x402c28 + (i * 8), 0x00000000);
+		nv_wr32(priv, 0x402c2c + (i * 8), 0x00000000);
+	}
+	return 0;
+}
+
+struct nouveau_oclass
+nv50_graph_oclass = {
+	.handle = NV_ENGINE(GR, 0x50),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv50_graph_ctor,
+		.dtor = _nouveau_graph_dtor,
+		.init = nv50_graph_init,
+		.fini = _nouveau_graph_fini,
+	},
+};