linux-vybrid_public/drivers/gpu/drm/nouveau/nv50_grctx.c

/*
 * Copyright 2009 Marcin Kościelnicki
 *
 * 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.
 */

#define CP_FLAG_CLEAR                 0
#define CP_FLAG_SET                   1
#define CP_FLAG_SWAP_DIRECTION        ((0 * 32) + 0)
#define CP_FLAG_SWAP_DIRECTION_LOAD   0
#define CP_FLAG_SWAP_DIRECTION_SAVE   1
#define CP_FLAG_UNK01                 ((0 * 32) + 1)
#define CP_FLAG_UNK01_CLEAR           0
#define CP_FLAG_UNK01_SET             1
#define CP_FLAG_UNK03                 ((0 * 32) + 3)
#define CP_FLAG_UNK03_CLEAR           0
#define CP_FLAG_UNK03_SET             1
#define CP_FLAG_USER_SAVE             ((0 * 32) + 5)
#define CP_FLAG_USER_SAVE_NOT_PENDING 0
#define CP_FLAG_USER_SAVE_PENDING     1
#define CP_FLAG_USER_LOAD             ((0 * 32) + 6)
#define CP_FLAG_USER_LOAD_NOT_PENDING 0
#define CP_FLAG_USER_LOAD_PENDING     1
#define CP_FLAG_UNK0B                 ((0 * 32) + 0xb)
#define CP_FLAG_UNK0B_CLEAR           0
#define CP_FLAG_UNK0B_SET             1
#define CP_FLAG_UNK1D                 ((0 * 32) + 0x1d)
#define CP_FLAG_UNK1D_CLEAR           0
#define CP_FLAG_UNK1D_SET             1
#define CP_FLAG_UNK20                 ((1 * 32) + 0)
#define CP_FLAG_UNK20_CLEAR           0
#define CP_FLAG_UNK20_SET             1
#define CP_FLAG_STATUS                ((2 * 32) + 0)
#define CP_FLAG_STATUS_BUSY           0
#define CP_FLAG_STATUS_IDLE           1
#define CP_FLAG_AUTO_SAVE             ((2 * 32) + 4)
#define CP_FLAG_AUTO_SAVE_NOT_PENDING 0
#define CP_FLAG_AUTO_SAVE_PENDING     1
#define CP_FLAG_AUTO_LOAD             ((2 * 32) + 5)
#define CP_FLAG_AUTO_LOAD_NOT_PENDING 0
#define CP_FLAG_AUTO_LOAD_PENDING     1
#define CP_FLAG_XFER                  ((2 * 32) + 11)
#define CP_FLAG_XFER_IDLE             0
#define CP_FLAG_XFER_BUSY             1
#define CP_FLAG_NEWCTX                ((2 * 32) + 12)
#define CP_FLAG_NEWCTX_BUSY           0
#define CP_FLAG_NEWCTX_DONE           1
#define CP_FLAG_ALWAYS                ((2 * 32) + 13)
#define CP_FLAG_ALWAYS_FALSE          0
#define CP_FLAG_ALWAYS_TRUE           1

#define CP_CTX                   0x00100000
#define CP_CTX_COUNT             0x000f0000
#define CP_CTX_COUNT_SHIFT               16
#define CP_CTX_REG               0x00003fff
#define CP_LOAD_SR               0x00200000
#define CP_LOAD_SR_VALUE         0x000fffff
#define CP_BRA                   0x00400000
#define CP_BRA_IP                0x0001ff00
#define CP_BRA_IP_SHIFT                   8
#define CP_BRA_IF_CLEAR          0x00000080
#define CP_BRA_FLAG              0x0000007f
#define CP_WAIT                  0x00500000
#define CP_WAIT_SET              0x00000080
#define CP_WAIT_FLAG             0x0000007f
#define CP_SET                   0x00700000
#define CP_SET_1                 0x00000080
#define CP_SET_FLAG              0x0000007f
#define CP_NEWCTX                0x00600004
#define CP_NEXT_TO_SWAP          0x00600005
#define CP_SET_CONTEXT_POINTER   0x00600006
#define CP_SET_XFER_POINTER      0x00600007
#define CP_ENABLE                0x00600009
#define CP_END                   0x0060000c
#define CP_NEXT_TO_CURRENT       0x0060000d
#define CP_DISABLE1              0x0090ffff
#define CP_DISABLE2              0x0091ffff
#define CP_XFER_1      0x008000ff
#define CP_XFER_2      0x008800ff
#define CP_SEEK_1      0x00c000ff
#define CP_SEEK_2      0x00c800ff

#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_grctx.h"

/*
 * This code deals with PGRAPH contexts on NV50 family cards. Like NV40, it's
 * the GPU itself that does context-switching, but it needs a special
 * microcode to do it. And it's the driver's task to supply this microcode,
 * further known as ctxprog, as well as the initial context values, known
 * as ctxvals.
 *
 * Without ctxprog, you cannot switch contexts. Not even in software, since
 * the majority of context [xfer strands] isn't accessible directly. You're
 * stuck with a single channel, and you also suffer all the problems resulting
 * from missing ctxvals, since you cannot load them.
 *
 * Without ctxvals, you're stuck with PGRAPH's default context. It's enough to
 * run 2d operations, but trying to utilise 3d or CUDA will just lock you up,
 * since you don't have... some sort of needed setup.
 *
 * Nouveau will just disable acceleration if not given ctxprog + ctxvals, since
 * it's too much hassle to handle no-ctxprog as a special case.
 */

/*
 * How ctxprogs work.
 *
 * The ctxprog is written in its own kind of microcode, with very small and
 * crappy set of available commands. You upload it to a small [512 insns]
 * area of memory on PGRAPH, and it'll be run when PFIFO wants PGRAPH to
 * switch channel. or when the driver explicitely requests it. Stuff visible
 * to ctxprog consists of: PGRAPH MMIO registers, PGRAPH context strands,
 * the per-channel context save area in VRAM [known as ctxvals or grctx],
 * 4 flags registers, a scratch register, two grctx pointers, plus many
 * random poorly-understood details.
 *
 * When ctxprog runs, it's supposed to check what operations are asked of it,
 * save old context if requested, optionally reset PGRAPH and switch to the
 * new channel, and load the new context. Context consists of three major
 * parts: subset of MMIO registers and two "xfer areas".
 */

/* TODO:
 *  - document unimplemented bits compared to nvidia
 *  - NVAx: make a TP subroutine, use it.
 *  - use 0x4008fc instead of 0x1540?
 */

enum cp_label {
	cp_check_load = 1,
	cp_setup_auto_load,
	cp_setup_load,
	cp_setup_save,
	cp_swap_state,
	cp_prepare_exit,
	cp_exit,
};

static void nv50_graph_construct_mmio(struct nouveau_grctx *ctx);
static void nv50_graph_construct_xfer1(struct nouveau_grctx *ctx);
static void nv50_graph_construct_xfer2(struct nouveau_grctx *ctx);

/* Main function: construct the ctxprog skeleton, call the other functions. */

int
nv50_grctx_init(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;

	switch (dev_priv->chipset) {
	case 0x50:
	case 0x84:
	case 0x86:
	case 0x92:
	case 0x94:
	case 0x96:
	case 0x98:
	case 0xa0:
	case 0xa5:
	case 0xa8:
	case 0xaa:
	case 0xac:
		break;
	default:
		NV_ERROR(ctx->dev, "I don't know how to make a ctxprog for "
				   "your NV%x card.\n", dev_priv->chipset);
		NV_ERROR(ctx->dev, "Disabling acceleration. Please contact "
				   "the devs.\n");
		return -ENOSYS;
	}
	/* decide whether we're loading/unloading the context */
	cp_bra (ctx, AUTO_SAVE, PENDING, cp_setup_save);
	cp_bra (ctx, USER_SAVE, PENDING, cp_setup_save);

	cp_name(ctx, cp_check_load);
	cp_bra (ctx, AUTO_LOAD, PENDING, cp_setup_auto_load);
	cp_bra (ctx, USER_LOAD, PENDING, cp_setup_load);
	cp_bra (ctx, ALWAYS, TRUE, cp_exit);

	/* setup for context load */
	cp_name(ctx, cp_setup_auto_load);
	cp_out (ctx, CP_DISABLE1);
	cp_out (ctx, CP_DISABLE2);
	cp_out (ctx, CP_ENABLE);
	cp_out (ctx, CP_NEXT_TO_SWAP);
	cp_set (ctx, UNK01, SET);
	cp_name(ctx, cp_setup_load);
	cp_out (ctx, CP_NEWCTX);
	cp_wait(ctx, NEWCTX, BUSY);
	cp_set (ctx, UNK1D, CLEAR);
	cp_set (ctx, SWAP_DIRECTION, LOAD);
	cp_bra (ctx, UNK0B, SET, cp_prepare_exit);
	cp_bra (ctx, ALWAYS, TRUE, cp_swap_state);

	/* setup for context save */
	cp_name(ctx, cp_setup_save);
	cp_set (ctx, UNK1D, SET);
	cp_wait(ctx, STATUS, BUSY);
	cp_set (ctx, UNK01, SET);
	cp_set (ctx, SWAP_DIRECTION, SAVE);

	/* general PGRAPH state */
	cp_name(ctx, cp_swap_state);
	cp_set (ctx, UNK03, SET);
	cp_pos (ctx, 0x00004/4);
	cp_ctx (ctx, 0x400828, 1); /* needed. otherwise, flickering happens. */
	cp_pos (ctx, 0x00100/4);
	nv50_graph_construct_mmio(ctx);
	nv50_graph_construct_xfer1(ctx);
	nv50_graph_construct_xfer2(ctx);

	cp_bra (ctx, SWAP_DIRECTION, SAVE, cp_check_load);

	cp_set (ctx, UNK20, SET);
	cp_set (ctx, SWAP_DIRECTION, SAVE); /* no idea why this is needed, but fixes at least one lockup. */
	cp_lsr (ctx, ctx->ctxvals_base);
	cp_out (ctx, CP_SET_XFER_POINTER);
	cp_lsr (ctx, 4);
	cp_out (ctx, CP_SEEK_1);
	cp_out (ctx, CP_XFER_1);
	cp_wait(ctx, XFER, BUSY);

	/* pre-exit state updates */
	cp_name(ctx, cp_prepare_exit);
	cp_set (ctx, UNK01, CLEAR);
	cp_set (ctx, UNK03, CLEAR);
	cp_set (ctx, UNK1D, CLEAR);

	cp_bra (ctx, USER_SAVE, PENDING, cp_exit);
	cp_out (ctx, CP_NEXT_TO_CURRENT);

	cp_name(ctx, cp_exit);
	cp_set (ctx, USER_SAVE, NOT_PENDING);
	cp_set (ctx, USER_LOAD, NOT_PENDING);
	cp_out (ctx, CP_END);
	ctx->ctxvals_pos += 0x400; /* padding... no idea why you need it */

	return 0;
}

/*
 * Constructs MMIO part of ctxprog and ctxvals. Just a matter of knowing which
 * registers to save/restore and the default values for them.
 */

static void
nv50_graph_construct_mmio(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	int i, j;
	int offset, base;
	uint32_t units = nv_rd32 (ctx->dev, 0x1540);

	/* 0800 */
	cp_ctx(ctx, 0x400808, 7);
	gr_def(ctx, 0x400814, 0x00000030);
	cp_ctx(ctx, 0x400834, 0x32);
	if (dev_priv->chipset == 0x50) {
		gr_def(ctx, 0x400834, 0xff400040);
		gr_def(ctx, 0x400838, 0xfff00080);
		gr_def(ctx, 0x40083c, 0xfff70090);
		gr_def(ctx, 0x400840, 0xffe806a8);
	}
	gr_def(ctx, 0x400844, 0x00000002);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		gr_def(ctx, 0x400894, 0x00001000);
	gr_def(ctx, 0x4008e8, 0x00000003);
	gr_def(ctx, 0x4008ec, 0x00001000);
	if (dev_priv->chipset == 0x50)
		cp_ctx(ctx, 0x400908, 0xb);
	else if (dev_priv->chipset < 0xa0)
		cp_ctx(ctx, 0x400908, 0xc);
	else
		cp_ctx(ctx, 0x400908, 0xe);

	if (dev_priv->chipset >= 0xa0)
		cp_ctx(ctx, 0x400b00, 0x1);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		cp_ctx(ctx, 0x400b10, 0x1);
		gr_def(ctx, 0x400b10, 0x0001629d);
		cp_ctx(ctx, 0x400b20, 0x1);
		gr_def(ctx, 0x400b20, 0x0001629d);
	}

	/* 0C00 */
	cp_ctx(ctx, 0x400c08, 0x2);
	gr_def(ctx, 0x400c08, 0x0000fe0c);

	/* 1000 */
	if (dev_priv->chipset < 0xa0) {
		cp_ctx(ctx, 0x401008, 0x4);
		gr_def(ctx, 0x401014, 0x00001000);
	} else if (dev_priv->chipset == 0xa0 || dev_priv->chipset >= 0xaa) {
		cp_ctx(ctx, 0x401008, 0x5);
		gr_def(ctx, 0x401018, 0x00001000);
	} else {
		cp_ctx(ctx, 0x401008, 0x5);
		gr_def(ctx, 0x401018, 0x00004000);
	}

	/* 1400 */
	cp_ctx(ctx, 0x401400, 0x8);
	cp_ctx(ctx, 0x401424, 0x3);
	if (dev_priv->chipset == 0x50)
		gr_def(ctx, 0x40142c, 0x0001fd87);
	else
		gr_def(ctx, 0x40142c, 0x00000187);
	cp_ctx(ctx, 0x401540, 0x5);
	gr_def(ctx, 0x401550, 0x00001018);

	/* 1800 */
	cp_ctx(ctx, 0x401814, 0x1);
	gr_def(ctx, 0x401814, 0x000000ff);
	if (dev_priv->chipset == 0x50) {
		cp_ctx(ctx, 0x40181c, 0xe);
		gr_def(ctx, 0x401850, 0x00000004);
	} else if (dev_priv->chipset < 0xa0) {
		cp_ctx(ctx, 0x40181c, 0xf);
		gr_def(ctx, 0x401854, 0x00000004);
	} else {
		cp_ctx(ctx, 0x40181c, 0x13);
		gr_def(ctx, 0x401864, 0x00000004);
	}

	/* 1C00 */
	cp_ctx(ctx, 0x401c00, 0x1);
	switch (dev_priv->chipset) {
	case 0x50:
		gr_def(ctx, 0x401c00, 0x0001005f);
		break;
	case 0x84:
	case 0x86:
	case 0x94:
		gr_def(ctx, 0x401c00, 0x044d00df);
		break;
	case 0x92:
	case 0x96:
	case 0x98:
	case 0xa0:
	case 0xaa:
	case 0xac:
		gr_def(ctx, 0x401c00, 0x042500df);
		break;
	case 0xa5:
	case 0xa8:
		gr_def(ctx, 0x401c00, 0x142500df);
		break;
	}

	/* 2400 */
	cp_ctx(ctx, 0x402400, 0x1);
	if (dev_priv->chipset == 0x50)
		cp_ctx(ctx, 0x402408, 0x1);
	else
		cp_ctx(ctx, 0x402408, 0x2);
	gr_def(ctx, 0x402408, 0x00000600);

	/* 2800 */
	cp_ctx(ctx, 0x402800, 0x1);
	if (dev_priv->chipset == 0x50)
		gr_def(ctx, 0x402800, 0x00000006);

	/* 2C00 */
	cp_ctx(ctx, 0x402c08, 0x6);
	if (dev_priv->chipset != 0x50)
		gr_def(ctx, 0x402c14, 0x01000000);
	gr_def(ctx, 0x402c18, 0x000000ff);
	if (dev_priv->chipset == 0x50)
		cp_ctx(ctx, 0x402ca0, 0x1);
	else
		cp_ctx(ctx, 0x402ca0, 0x2);
	if (dev_priv->chipset < 0xa0)
		gr_def(ctx, 0x402ca0, 0x00000400);
	else if (dev_priv->chipset == 0xa0 || dev_priv->chipset >= 0xaa)
		gr_def(ctx, 0x402ca0, 0x00000800);
	else
		gr_def(ctx, 0x402ca0, 0x00000400);
	cp_ctx(ctx, 0x402cac, 0x4);

	/* 3000 */
	cp_ctx(ctx, 0x403004, 0x1);
	gr_def(ctx, 0x403004, 0x00000001);

	/* 3404 */
	if (dev_priv->chipset >= 0xa0) {
		cp_ctx(ctx, 0x403404, 0x1);
		gr_def(ctx, 0x403404, 0x00000001);
	}

	/* 5000 */
	cp_ctx(ctx, 0x405000, 0x1);
	switch (dev_priv->chipset) {
	case 0x50:
		gr_def(ctx, 0x405000, 0x00300080);
		break;
	case 0x84:
	case 0xa0:
	case 0xa5:
	case 0xa8:
	case 0xaa:
	case 0xac:
		gr_def(ctx, 0x405000, 0x000e0080);
		break;
	case 0x86:
	case 0x92:
	case 0x94:
	case 0x96:
	case 0x98:
		gr_def(ctx, 0x405000, 0x00000080);
		break;
	}
	cp_ctx(ctx, 0x405014, 0x1);
	gr_def(ctx, 0x405014, 0x00000004);
	cp_ctx(ctx, 0x40501c, 0x1);
	cp_ctx(ctx, 0x405024, 0x1);
	cp_ctx(ctx, 0x40502c, 0x1);

	/* 5400 or maybe 4800 */
	if (dev_priv->chipset == 0x50) {
		offset = 0x405400;
		cp_ctx(ctx, 0x405400, 0xea);
	} else if (dev_priv->chipset < 0x94) {
		offset = 0x405400;
		cp_ctx(ctx, 0x405400, 0xcb);
	} else if (dev_priv->chipset < 0xa0) {
		offset = 0x405400;
		cp_ctx(ctx, 0x405400, 0xcc);
	} else if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		offset = 0x404800;
		cp_ctx(ctx, 0x404800, 0xda);
	} else {
		offset = 0x405400;
		cp_ctx(ctx, 0x405400, 0xd4);
	}
	gr_def(ctx, offset + 0x0c, 0x00000002);
	gr_def(ctx, offset + 0x10, 0x00000001);
	if (dev_priv->chipset >= 0x94)
		offset += 4;
	gr_def(ctx, offset + 0x1c, 0x00000001);
	gr_def(ctx, offset + 0x20, 0x00000100);
	gr_def(ctx, offset + 0x38, 0x00000002);
	gr_def(ctx, offset + 0x3c, 0x00000001);
	gr_def(ctx, offset + 0x40, 0x00000001);
	gr_def(ctx, offset + 0x50, 0x00000001);
	gr_def(ctx, offset + 0x54, 0x003fffff);
	gr_def(ctx, offset + 0x58, 0x00001fff);
	gr_def(ctx, offset + 0x60, 0x00000001);
	gr_def(ctx, offset + 0x64, 0x00000001);
	gr_def(ctx, offset + 0x6c, 0x00000001);
	gr_def(ctx, offset + 0x70, 0x00000001);
	gr_def(ctx, offset + 0x74, 0x00000001);
	gr_def(ctx, offset + 0x78, 0x00000004);
	gr_def(ctx, offset + 0x7c, 0x00000001);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		offset += 4;
	gr_def(ctx, offset + 0x80, 0x00000001);
	gr_def(ctx, offset + 0x84, 0x00000001);
	gr_def(ctx, offset + 0x88, 0x00000007);
	gr_def(ctx, offset + 0x8c, 0x00000001);
	gr_def(ctx, offset + 0x90, 0x00000007);
	gr_def(ctx, offset + 0x94, 0x00000001);
	gr_def(ctx, offset + 0x98, 0x00000001);
	gr_def(ctx, offset + 0x9c, 0x00000001);
	if (dev_priv->chipset == 0x50) {
		 gr_def(ctx, offset + 0xb0, 0x00000001);
		 gr_def(ctx, offset + 0xb4, 0x00000001);
		 gr_def(ctx, offset + 0xbc, 0x00000001);
		 gr_def(ctx, offset + 0xc0, 0x0000000a);
		 gr_def(ctx, offset + 0xd0, 0x00000040);
		 gr_def(ctx, offset + 0xd8, 0x00000002);
		 gr_def(ctx, offset + 0xdc, 0x00000100);
		 gr_def(ctx, offset + 0xe0, 0x00000001);
		 gr_def(ctx, offset + 0xe4, 0x00000100);
		 gr_def(ctx, offset + 0x100, 0x00000001);
		 gr_def(ctx, offset + 0x124, 0x00000004);
		 gr_def(ctx, offset + 0x13c, 0x00000001);
		 gr_def(ctx, offset + 0x140, 0x00000100);
		 gr_def(ctx, offset + 0x148, 0x00000001);
		 gr_def(ctx, offset + 0x154, 0x00000100);
		 gr_def(ctx, offset + 0x158, 0x00000001);
		 gr_def(ctx, offset + 0x15c, 0x00000100);
		 gr_def(ctx, offset + 0x164, 0x00000001);
		 gr_def(ctx, offset + 0x170, 0x00000100);
		 gr_def(ctx, offset + 0x174, 0x00000001);
		 gr_def(ctx, offset + 0x17c, 0x00000001);
		 gr_def(ctx, offset + 0x188, 0x00000002);
		 gr_def(ctx, offset + 0x190, 0x00000001);
		 gr_def(ctx, offset + 0x198, 0x00000001);
		 gr_def(ctx, offset + 0x1ac, 0x00000003);
		 offset += 0xd0;
	} else {
		gr_def(ctx, offset + 0xb0, 0x00000001);
		gr_def(ctx, offset + 0xb4, 0x00000100);
		gr_def(ctx, offset + 0xbc, 0x00000001);
		gr_def(ctx, offset + 0xc8, 0x00000100);
		gr_def(ctx, offset + 0xcc, 0x00000001);
		gr_def(ctx, offset + 0xd0, 0x00000100);
		gr_def(ctx, offset + 0xd8, 0x00000001);
		gr_def(ctx, offset + 0xe4, 0x00000100);
	}
	gr_def(ctx, offset + 0xf8, 0x00000004);
	gr_def(ctx, offset + 0xfc, 0x00000070);
	gr_def(ctx, offset + 0x100, 0x00000080);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		offset += 4;
	gr_def(ctx, offset + 0x114, 0x0000000c);
	if (dev_priv->chipset == 0x50)
		offset -= 4;
	gr_def(ctx, offset + 0x11c, 0x00000008);
	gr_def(ctx, offset + 0x120, 0x00000014);
	if (dev_priv->chipset == 0x50) {
		gr_def(ctx, offset + 0x124, 0x00000026);
		offset -= 0x18;
	} else {
		gr_def(ctx, offset + 0x128, 0x00000029);
		gr_def(ctx, offset + 0x12c, 0x00000027);
		gr_def(ctx, offset + 0x130, 0x00000026);
		gr_def(ctx, offset + 0x134, 0x00000008);
		gr_def(ctx, offset + 0x138, 0x00000004);
		gr_def(ctx, offset + 0x13c, 0x00000027);
	}
	gr_def(ctx, offset + 0x148, 0x00000001);
	gr_def(ctx, offset + 0x14c, 0x00000002);
	gr_def(ctx, offset + 0x150, 0x00000003);
	gr_def(ctx, offset + 0x154, 0x00000004);
	gr_def(ctx, offset + 0x158, 0x00000005);
	gr_def(ctx, offset + 0x15c, 0x00000006);
	gr_def(ctx, offset + 0x160, 0x00000007);
	gr_def(ctx, offset + 0x164, 0x00000001);
	gr_def(ctx, offset + 0x1a8, 0x000000cf);
	if (dev_priv->chipset == 0x50)
		offset -= 4;
	gr_def(ctx, offset + 0x1d8, 0x00000080);
	gr_def(ctx, offset + 0x1dc, 0x00000004);
	gr_def(ctx, offset + 0x1e0, 0x00000004);
	if (dev_priv->chipset == 0x50)
		offset -= 4;
	else
		gr_def(ctx, offset + 0x1e4, 0x00000003);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		gr_def(ctx, offset + 0x1ec, 0x00000003);
		offset += 8;
	}
	gr_def(ctx, offset + 0x1e8, 0x00000001);
	if (dev_priv->chipset == 0x50)
		offset -= 4;
	gr_def(ctx, offset + 0x1f4, 0x00000012);
	gr_def(ctx, offset + 0x1f8, 0x00000010);
	gr_def(ctx, offset + 0x1fc, 0x0000000c);
	gr_def(ctx, offset + 0x200, 0x00000001);
	gr_def(ctx, offset + 0x210, 0x00000004);
	gr_def(ctx, offset + 0x214, 0x00000002);
	gr_def(ctx, offset + 0x218, 0x00000004);
	if (dev_priv->chipset >= 0xa0)
		offset += 4;
	gr_def(ctx, offset + 0x224, 0x003fffff);
	gr_def(ctx, offset + 0x228, 0x00001fff);
	if (dev_priv->chipset == 0x50)
		offset -= 0x20;
	else if (dev_priv->chipset >= 0xa0) {
		gr_def(ctx, offset + 0x250, 0x00000001);
		gr_def(ctx, offset + 0x254, 0x00000001);
		gr_def(ctx, offset + 0x258, 0x00000002);
		offset += 0x10;
	}
	gr_def(ctx, offset + 0x250, 0x00000004);
	gr_def(ctx, offset + 0x254, 0x00000014);
	gr_def(ctx, offset + 0x258, 0x00000001);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		offset += 4;
	gr_def(ctx, offset + 0x264, 0x00000002);
	if (dev_priv->chipset >= 0xa0)
		offset += 8;
	gr_def(ctx, offset + 0x270, 0x00000001);
	gr_def(ctx, offset + 0x278, 0x00000002);
	gr_def(ctx, offset + 0x27c, 0x00001000);
	if (dev_priv->chipset == 0x50)
		offset -= 0xc;
	else {
		gr_def(ctx, offset + 0x280, 0x00000e00);
		gr_def(ctx, offset + 0x284, 0x00001000);
		gr_def(ctx, offset + 0x288, 0x00001e00);
	}
	gr_def(ctx, offset + 0x290, 0x00000001);
	gr_def(ctx, offset + 0x294, 0x00000001);
	gr_def(ctx, offset + 0x298, 0x00000001);
	gr_def(ctx, offset + 0x29c, 0x00000001);
	gr_def(ctx, offset + 0x2a0, 0x00000001);
	gr_def(ctx, offset + 0x2b0, 0x00000200);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		gr_def(ctx, offset + 0x2b4, 0x00000200);
		offset += 4;
	}
	if (dev_priv->chipset < 0xa0) {
		gr_def(ctx, offset + 0x2b8, 0x00000001);
		gr_def(ctx, offset + 0x2bc, 0x00000070);
		gr_def(ctx, offset + 0x2c0, 0x00000080);
		gr_def(ctx, offset + 0x2cc, 0x00000001);
		gr_def(ctx, offset + 0x2d0, 0x00000070);
		gr_def(ctx, offset + 0x2d4, 0x00000080);
	} else {
		gr_def(ctx, offset + 0x2b8, 0x00000001);
		gr_def(ctx, offset + 0x2bc, 0x000000f0);
		gr_def(ctx, offset + 0x2c0, 0x000000ff);
		gr_def(ctx, offset + 0x2cc, 0x00000001);
		gr_def(ctx, offset + 0x2d0, 0x000000f0);
		gr_def(ctx, offset + 0x2d4, 0x000000ff);
		gr_def(ctx, offset + 0x2dc, 0x00000009);
		offset += 4;
	}
	gr_def(ctx, offset + 0x2e4, 0x00000001);
	gr_def(ctx, offset + 0x2e8, 0x000000cf);
	gr_def(ctx, offset + 0x2f0, 0x00000001);
	gr_def(ctx, offset + 0x300, 0x000000cf);
	gr_def(ctx, offset + 0x308, 0x00000002);
	gr_def(ctx, offset + 0x310, 0x00000001);
	gr_def(ctx, offset + 0x318, 0x00000001);
	gr_def(ctx, offset + 0x320, 0x000000cf);
	gr_def(ctx, offset + 0x324, 0x000000cf);
	gr_def(ctx, offset + 0x328, 0x00000001);

	/* 6000? */
	if (dev_priv->chipset == 0x50)
		cp_ctx(ctx, 0x4063e0, 0x1);

	/* 6800 */
	if (dev_priv->chipset < 0x90) {
		cp_ctx(ctx, 0x406814, 0x2b);
		gr_def(ctx, 0x406818, 0x00000f80);
		gr_def(ctx, 0x406860, 0x007f0080);
		gr_def(ctx, 0x40689c, 0x007f0080);
	} else {
		cp_ctx(ctx, 0x406814, 0x4);
		if (dev_priv->chipset == 0x98)
			gr_def(ctx, 0x406818, 0x00000f80);
		else
			gr_def(ctx, 0x406818, 0x00001f80);
		if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
			gr_def(ctx, 0x40681c, 0x00000030);
		cp_ctx(ctx, 0x406830, 0x3);
	}

	/* 7000: per-ROP group state */
	for (i = 0; i < 8; i++) {
		if (units & (1<<(i+16))) {
			cp_ctx(ctx, 0x407000 + (i<<8), 3);
			if (dev_priv->chipset == 0x50)
				gr_def(ctx, 0x407000 + (i<<8), 0x1b74f820);
			else if (dev_priv->chipset != 0xa5)
				gr_def(ctx, 0x407000 + (i<<8), 0x3b74f821);
			else
				gr_def(ctx, 0x407000 + (i<<8), 0x7b74f821);
			gr_def(ctx, 0x407004 + (i<<8), 0x89058001);

			if (dev_priv->chipset == 0x50) {
				cp_ctx(ctx, 0x407010 + (i<<8), 1);
			} else if (dev_priv->chipset < 0xa0) {
				cp_ctx(ctx, 0x407010 + (i<<8), 2);
				gr_def(ctx, 0x407010 + (i<<8), 0x00001000);
				gr_def(ctx, 0x407014 + (i<<8), 0x0000001f);
			} else {
				cp_ctx(ctx, 0x407010 + (i<<8), 3);
				gr_def(ctx, 0x407010 + (i<<8), 0x00001000);
				if (dev_priv->chipset != 0xa5)
					gr_def(ctx, 0x407014 + (i<<8), 0x000000ff);
				else
					gr_def(ctx, 0x407014 + (i<<8), 0x000001ff);
			}

			cp_ctx(ctx, 0x407080 + (i<<8), 4);
			if (dev_priv->chipset != 0xa5)
				gr_def(ctx, 0x407080 + (i<<8), 0x027c10fa);
			else
				gr_def(ctx, 0x407080 + (i<<8), 0x827c10fa);
			if (dev_priv->chipset == 0x50)
				gr_def(ctx, 0x407084 + (i<<8), 0x000000c0);
			else
				gr_def(ctx, 0x407084 + (i<<8), 0x400000c0);
			gr_def(ctx, 0x407088 + (i<<8), 0xb7892080);

			if (dev_priv->chipset < 0xa0)
				cp_ctx(ctx, 0x407094 + (i<<8), 1);
			else if (dev_priv->chipset <= 0xa0 || dev_priv->chipset >= 0xaa)
				cp_ctx(ctx, 0x407094 + (i<<8), 3);
			else {
				cp_ctx(ctx, 0x407094 + (i<<8), 4);
				gr_def(ctx, 0x4070a0 + (i<<8), 1);
			}
		}
	}

	cp_ctx(ctx, 0x407c00, 0x3);
	if (dev_priv->chipset < 0x90)
		gr_def(ctx, 0x407c00, 0x00010040);
	else if (dev_priv->chipset < 0xa0)
		gr_def(ctx, 0x407c00, 0x00390040);
	else
		gr_def(ctx, 0x407c00, 0x003d0040);
	gr_def(ctx, 0x407c08, 0x00000022);
	if (dev_priv->chipset >= 0xa0) {
		cp_ctx(ctx, 0x407c10, 0x3);
		cp_ctx(ctx, 0x407c20, 0x1);
		cp_ctx(ctx, 0x407c2c, 0x1);
	}

	if (dev_priv->chipset < 0xa0) {
		cp_ctx(ctx, 0x407d00, 0x9);
	} else {
		cp_ctx(ctx, 0x407d00, 0x15);
	}
	if (dev_priv->chipset == 0x98)
		gr_def(ctx, 0x407d08, 0x00380040);
	else {
		if (dev_priv->chipset < 0x90)
			gr_def(ctx, 0x407d08, 0x00010040);
		else if (dev_priv->chipset < 0xa0)
			gr_def(ctx, 0x407d08, 0x00390040);
		else
			gr_def(ctx, 0x407d08, 0x003d0040);
		gr_def(ctx, 0x407d0c, 0x00000022);
	}

	/* 8000+: per-TP state */
	for (i = 0; i < 10; i++) {
		if (units & (1<<i)) {
			if (dev_priv->chipset < 0xa0)
				base = 0x408000 + (i<<12);
			else
				base = 0x408000 + (i<<11);
			if (dev_priv->chipset < 0xa0)
				offset = base + 0xc00;
			else
				offset = base + 0x80;
			cp_ctx(ctx, offset + 0x00, 1);
			gr_def(ctx, offset + 0x00, 0x0000ff0a);
			cp_ctx(ctx, offset + 0x08, 1);

			/* per-MP state */
			for (j = 0; j < (dev_priv->chipset < 0xa0 ? 2 : 4); j++) {
				if (!(units & (1 << (j+24)))) continue;
				if (dev_priv->chipset < 0xa0)
					offset = base + 0x200 + (j<<7);
				else
					offset = base + 0x100 + (j<<7);
				cp_ctx(ctx, offset, 0x20);
				gr_def(ctx, offset + 0x00, 0x01800000);
				gr_def(ctx, offset + 0x04, 0x00160000);
				gr_def(ctx, offset + 0x08, 0x01800000);
				gr_def(ctx, offset + 0x18, 0x0003ffff);
				switch (dev_priv->chipset) {
				case 0x50:
					gr_def(ctx, offset + 0x1c, 0x00080000);
					break;
				case 0x84:
					gr_def(ctx, offset + 0x1c, 0x00880000);
					break;
				case 0x86:
					gr_def(ctx, offset + 0x1c, 0x008c0000);
					break;
				case 0x92:
				case 0x96:
				case 0x98:
					gr_def(ctx, offset + 0x1c, 0x118c0000);
					break;
				case 0x94:
					gr_def(ctx, offset + 0x1c, 0x10880000);
					break;
				case 0xa0:
				case 0xa5:
					gr_def(ctx, offset + 0x1c, 0x310c0000);
					break;
				case 0xa8:
				case 0xaa:
				case 0xac:
					gr_def(ctx, offset + 0x1c, 0x300c0000);
					break;
				}
				gr_def(ctx, offset + 0x40, 0x00010401);
				if (dev_priv->chipset == 0x50)
					gr_def(ctx, offset + 0x48, 0x00000040);
				else
					gr_def(ctx, offset + 0x48, 0x00000078);
				gr_def(ctx, offset + 0x50, 0x000000bf);
				gr_def(ctx, offset + 0x58, 0x00001210);
				if (dev_priv->chipset == 0x50)
					gr_def(ctx, offset + 0x5c, 0x00000080);
				else
					gr_def(ctx, offset + 0x5c, 0x08000080);
				if (dev_priv->chipset >= 0xa0)
					gr_def(ctx, offset + 0x68, 0x0000003e);
			}

			if (dev_priv->chipset < 0xa0)
				cp_ctx(ctx, base + 0x300, 0x4);
			else
				cp_ctx(ctx, base + 0x300, 0x5);
			if (dev_priv->chipset == 0x50)
				gr_def(ctx, base + 0x304, 0x00007070);
			else if (dev_priv->chipset < 0xa0)
				gr_def(ctx, base + 0x304, 0x00027070);
			else if (dev_priv->chipset <= 0xa0 || dev_priv->chipset >= 0xaa)
				gr_def(ctx, base + 0x304, 0x01127070);
			else
				gr_def(ctx, base + 0x304, 0x05127070);

			if (dev_priv->chipset < 0xa0)
				cp_ctx(ctx, base + 0x318, 1);
			else
				cp_ctx(ctx, base + 0x320, 1);
			if (dev_priv->chipset == 0x50)
				gr_def(ctx, base + 0x318, 0x0003ffff);
			else if (dev_priv->chipset < 0xa0)
				gr_def(ctx, base + 0x318, 0x03ffffff);
			else
				gr_def(ctx, base + 0x320, 0x07ffffff);

			if (dev_priv->chipset < 0xa0)
				cp_ctx(ctx, base + 0x324, 5);
			else
				cp_ctx(ctx, base + 0x328, 4);

			if (dev_priv->chipset < 0xa0) {
				cp_ctx(ctx, base + 0x340, 9);
				offset = base + 0x340;
			} else if (dev_priv->chipset <= 0xa0 || dev_priv->chipset >= 0xaa) {
				cp_ctx(ctx, base + 0x33c, 0xb);
				offset = base + 0x344;
			} else {
				cp_ctx(ctx, base + 0x33c, 0xd);
				offset = base + 0x344;
			}
			gr_def(ctx, offset + 0x0, 0x00120407);
			gr_def(ctx, offset + 0x4, 0x05091507);
			if (dev_priv->chipset == 0x84)
				gr_def(ctx, offset + 0x8, 0x05100202);
			else
				gr_def(ctx, offset + 0x8, 0x05010202);
			gr_def(ctx, offset + 0xc, 0x00030201);

			cp_ctx(ctx, base + 0x400, 2);
			gr_def(ctx, base + 0x404, 0x00000040);
			cp_ctx(ctx, base + 0x40c, 2);
			gr_def(ctx, base + 0x40c, 0x0d0c0b0a);
			gr_def(ctx, base + 0x410, 0x00141210);

			if (dev_priv->chipset < 0xa0)
				offset = base + 0x800;
			else
				offset = base + 0x500;
			cp_ctx(ctx, offset, 6);
			gr_def(ctx, offset + 0x0, 0x000001f0);
			gr_def(ctx, offset + 0x4, 0x00000001);
			gr_def(ctx, offset + 0x8, 0x00000003);
			if (dev_priv->chipset == 0x50 || dev_priv->chipset >= 0xaa)
				gr_def(ctx, offset + 0xc, 0x00008000);
			gr_def(ctx, offset + 0x14, 0x00039e00);
			cp_ctx(ctx, offset + 0x1c, 2);
			if (dev_priv->chipset == 0x50)
				gr_def(ctx, offset + 0x1c, 0x00000040);
			else
				gr_def(ctx, offset + 0x1c, 0x00000100);
			gr_def(ctx, offset + 0x20, 0x00003800);

			if (dev_priv->chipset >= 0xa0) {
				cp_ctx(ctx, base + 0x54c, 2);
				if (dev_priv->chipset <= 0xa0 || dev_priv->chipset >= 0xaa)
					gr_def(ctx, base + 0x54c, 0x003fe006);
				else
					gr_def(ctx, base + 0x54c, 0x003fe007);
				gr_def(ctx, base + 0x550, 0x003fe000);
			}

			if (dev_priv->chipset < 0xa0)
				offset = base + 0xa00;
			else
				offset = base + 0x680;
			cp_ctx(ctx, offset, 1);
			gr_def(ctx, offset, 0x00404040);

			if (dev_priv->chipset < 0xa0)
				offset = base + 0xe00;
			else
				offset = base + 0x700;
			cp_ctx(ctx, offset, 2);
			if (dev_priv->chipset < 0xa0)
				gr_def(ctx, offset, 0x0077f005);
			else if (dev_priv->chipset == 0xa5)
				gr_def(ctx, offset, 0x6cf7f007);
			else if (dev_priv->chipset == 0xa8)
				gr_def(ctx, offset, 0x6cfff007);
			else if (dev_priv->chipset == 0xac)
				gr_def(ctx, offset, 0x0cfff007);
			else
				gr_def(ctx, offset, 0x0cf7f007);
			if (dev_priv->chipset == 0x50)
				gr_def(ctx, offset + 0x4, 0x00007fff);
			else if (dev_priv->chipset < 0xa0)
				gr_def(ctx, offset + 0x4, 0x003f7fff);
			else
				gr_def(ctx, offset + 0x4, 0x02bf7fff);
			cp_ctx(ctx, offset + 0x2c, 1);
			if (dev_priv->chipset == 0x50) {
				cp_ctx(ctx, offset + 0x50, 9);
				gr_def(ctx, offset + 0x54, 0x000003ff);
				gr_def(ctx, offset + 0x58, 0x00000003);
				gr_def(ctx, offset + 0x5c, 0x00000003);
				gr_def(ctx, offset + 0x60, 0x000001ff);
				gr_def(ctx, offset + 0x64, 0x0000001f);
				gr_def(ctx, offset + 0x68, 0x0000000f);
				gr_def(ctx, offset + 0x6c, 0x0000000f);
			} else if(dev_priv->chipset < 0xa0) {
				cp_ctx(ctx, offset + 0x50, 1);
				cp_ctx(ctx, offset + 0x70, 1);
			} else {
				cp_ctx(ctx, offset + 0x50, 1);
				cp_ctx(ctx, offset + 0x60, 5);
			}
		}
	}
}

/*
 * xfer areas. These are a pain.
 *
 * There are 2 xfer areas: the first one is big and contains all sorts of
 * stuff, the second is small and contains some per-TP context.
 *
 * Each area is split into 8 "strands". The areas, when saved to grctx,
 * are made of 8-word blocks. Each block contains a single word from
 * each strand. The strands are independent of each other, their
 * addresses are unrelated to each other, and data in them is closely
 * packed together. The strand layout varies a bit between cards: here
 * and there, a single word is thrown out in the middle and the whole
 * strand is offset by a bit from corresponding one on another chipset.
 * For this reason, addresses of stuff in strands are almost useless.
 * Knowing sequence of stuff and size of gaps between them is much more
 * useful, and that's how we build the strands in our generator.
 *
 * NVA0 takes this mess to a whole new level by cutting the old strands
 * into a few dozen pieces [known as genes], rearranging them randomly,
 * and putting them back together to make new strands. Hopefully these
 * genes correspond more or less directly to the same PGRAPH subunits
 * as in 400040 register.
 *
 * The most common value in default context is 0, and when the genes
 * are separated by 0's, gene bounduaries are quite speculative...
 * some of them can be clearly deduced, others can be guessed, and yet
 * others won't be resolved without figuring out the real meaning of
 * given ctxval. For the same reason, ending point of each strand
 * is unknown. Except for strand 0, which is the longest strand and
 * its end corresponds to end of the whole xfer.
 *
 * An unsolved mystery is the seek instruction: it takes an argument
 * in bits 8-18, and that argument is clearly the place in strands to
 * seek to... but the offsets don't seem to correspond to offsets as
 * seen in grctx. Perhaps there's another, real, not randomly-changing
 * addressing in strands, and the xfer insn just happens to skip over
 * the unused bits? NV10-NV30 PIPE comes to mind...
 *
 * As far as I know, there's no way to access the xfer areas directly
 * without the help of ctxprog.
 */

static inline void
xf_emit(struct nouveau_grctx *ctx, int num, uint32_t val) {
	int i;
	if (val && ctx->mode == NOUVEAU_GRCTX_VALS)
		for (i = 0; i < num; i++)
			nv_wo32(ctx->dev, ctx->data, ctx->ctxvals_pos + (i << 3), val);
	ctx->ctxvals_pos += num << 3;
}

/* Gene declarations... */

static void nv50_graph_construct_gene_m2mf(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk1(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk2(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk3(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk4(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk5(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk6(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk7(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk8(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk9(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk10(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_ropc(struct nouveau_grctx *ctx);
static void nv50_graph_construct_xfer_tp(struct nouveau_grctx *ctx);

static void
nv50_graph_construct_xfer1(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	int i;
	int offset;
	int size = 0;
	uint32_t units = nv_rd32 (ctx->dev, 0x1540);

	offset = (ctx->ctxvals_pos+0x3f)&~0x3f;
	ctx->ctxvals_base = offset;

	if (dev_priv->chipset < 0xa0) {
		/* Strand 0 */
		ctx->ctxvals_pos = offset;
		switch (dev_priv->chipset) {
		case 0x50:
			xf_emit(ctx, 0x99, 0);
			break;
		case 0x84:
		case 0x86:
			xf_emit(ctx, 0x384, 0);
			break;
		case 0x92:
		case 0x94:
		case 0x96:
		case 0x98:
			xf_emit(ctx, 0x380, 0);
			break;
		}
		nv50_graph_construct_gene_m2mf (ctx);
		switch (dev_priv->chipset) {
		case 0x50:
		case 0x84:
		case 0x86:
		case 0x98:
			xf_emit(ctx, 0x4c4, 0);
			break;
		case 0x92:
		case 0x94:
		case 0x96:
			xf_emit(ctx, 0x984, 0);
			break;
		}
		nv50_graph_construct_gene_unk5(ctx);
		if (dev_priv->chipset == 0x50)
			xf_emit(ctx, 0xa, 0);
		else
			xf_emit(ctx, 0xb, 0);
		nv50_graph_construct_gene_unk4(ctx);
		nv50_graph_construct_gene_unk3(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 1 */
		ctx->ctxvals_pos = offset + 0x1;
		nv50_graph_construct_gene_unk6(ctx);
		nv50_graph_construct_gene_unk7(ctx);
		nv50_graph_construct_gene_unk8(ctx);
		switch (dev_priv->chipset) {
		case 0x50:
		case 0x92:
			xf_emit(ctx, 0xfb, 0);
			break;
		case 0x84:
			xf_emit(ctx, 0xd3, 0);
			break;
		case 0x94:
		case 0x96:
			xf_emit(ctx, 0xab, 0);
			break;
		case 0x86:
		case 0x98:
			xf_emit(ctx, 0x6b, 0);
			break;
		}
		xf_emit(ctx, 2, 0x4e3bfdf);
		xf_emit(ctx, 4, 0);
		xf_emit(ctx, 1, 0x0fac6881);
		xf_emit(ctx, 0xb, 0);
		xf_emit(ctx, 2, 0x4e3bfdf);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 2 */
		ctx->ctxvals_pos = offset + 0x2;
		switch (dev_priv->chipset) {
		case 0x50:
		case 0x92:
			xf_emit(ctx, 0xa80, 0);
			break;
		case 0x84:
			xf_emit(ctx, 0xa7e, 0);
			break;
		case 0x94:
		case 0x96:
			xf_emit(ctx, 0xa7c, 0);
			break;
		case 0x86:
		case 0x98:
			xf_emit(ctx, 0xa7a, 0);
			break;
		}
		xf_emit(ctx, 1, 0x3fffff);
		xf_emit(ctx, 2, 0);
		xf_emit(ctx, 1, 0x1fff);
		xf_emit(ctx, 0xe, 0);
		nv50_graph_construct_gene_unk9(ctx);
		nv50_graph_construct_gene_unk2(ctx);
		nv50_graph_construct_gene_unk1(ctx);
		nv50_graph_construct_gene_unk10(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 3: per-ROP group state */
		ctx->ctxvals_pos = offset + 3;
		for (i = 0; i < 6; i++)
			if (units & (1 << (i + 16)))
				nv50_graph_construct_gene_ropc(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strands 4-7: per-TP state */
		for (i = 0; i < 4; i++) {
			ctx->ctxvals_pos = offset + 4 + i;
			if (units & (1 << (2 * i)))
				nv50_graph_construct_xfer_tp(ctx);
			if (units & (1 << (2 * i + 1)))
				nv50_graph_construct_xfer_tp(ctx);
			if ((ctx->ctxvals_pos-offset)/8 > size)
				size = (ctx->ctxvals_pos-offset)/8;
		}
	} else {
		/* Strand 0 */
		ctx->ctxvals_pos = offset;
		if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
			xf_emit(ctx, 0x385, 0);
		else
			xf_emit(ctx, 0x384, 0);
		nv50_graph_construct_gene_m2mf(ctx);
		xf_emit(ctx, 0x950, 0);
		nv50_graph_construct_gene_unk10(ctx);
		xf_emit(ctx, 1, 0x0fac6881);
		if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
			xf_emit(ctx, 1, 1);
			xf_emit(ctx, 3, 0);
		}
		nv50_graph_construct_gene_unk8(ctx);
		if (dev_priv->chipset == 0xa0)
			xf_emit(ctx, 0x189, 0);
		else if (dev_priv->chipset < 0xa8)
			xf_emit(ctx, 0x99, 0);
		else if (dev_priv->chipset == 0xaa)
			xf_emit(ctx, 0x65, 0);
		else
			xf_emit(ctx, 0x6d, 0);
		nv50_graph_construct_gene_unk9(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 1 */
		ctx->ctxvals_pos = offset + 1;
		nv50_graph_construct_gene_unk1(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 2 */
		ctx->ctxvals_pos = offset + 2;
		if (dev_priv->chipset == 0xa0) {
			nv50_graph_construct_gene_unk2(ctx);
		}
		xf_emit(ctx, 0x36, 0);
		nv50_graph_construct_gene_unk5(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 3 */
		ctx->ctxvals_pos = offset + 3;
		xf_emit(ctx, 1, 0);
		xf_emit(ctx, 1, 1);
		nv50_graph_construct_gene_unk6(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 4 */
		ctx->ctxvals_pos = offset + 4;
		if (dev_priv->chipset == 0xa0)
			xf_emit(ctx, 0xa80, 0);
		else
			xf_emit(ctx, 0xa7a, 0);
		xf_emit(ctx, 1, 0x3fffff);
		xf_emit(ctx, 2, 0);
		xf_emit(ctx, 1, 0x1fff);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 5 */
		ctx->ctxvals_pos = offset + 5;
		xf_emit(ctx, 1, 0);
		xf_emit(ctx, 1, 0x0fac6881);
		xf_emit(ctx, 0xb, 0);
		xf_emit(ctx, 2, 0x4e3bfdf);
		xf_emit(ctx, 3, 0);
		if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
			xf_emit(ctx, 1, 0x11);
		xf_emit(ctx, 1, 0);
		xf_emit(ctx, 2, 0x4e3bfdf);
		xf_emit(ctx, 2, 0);
		if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
			xf_emit(ctx, 1, 0x11);
		xf_emit(ctx, 1, 0);
		for (i = 0; i < 8; i++)
			if (units & (1<<(i+16)))
				nv50_graph_construct_gene_ropc(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 6 */
		ctx->ctxvals_pos = offset + 6;
		nv50_graph_construct_gene_unk3(ctx);
		xf_emit(ctx, 0xb, 0);
		nv50_graph_construct_gene_unk4(ctx);
		nv50_graph_construct_gene_unk7(ctx);
		if (units & (1 << 0))
			nv50_graph_construct_xfer_tp(ctx);
		if (units & (1 << 1))
			nv50_graph_construct_xfer_tp(ctx);
		if (units & (1 << 2))
			nv50_graph_construct_xfer_tp(ctx);
		if (units & (1 << 3))
			nv50_graph_construct_xfer_tp(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 7 */
		ctx->ctxvals_pos = offset + 7;
		if (dev_priv->chipset == 0xa0) {
			if (units & (1 << 4))
				nv50_graph_construct_xfer_tp(ctx);
			if (units & (1 << 5))
				nv50_graph_construct_xfer_tp(ctx);
			if (units & (1 << 6))
				nv50_graph_construct_xfer_tp(ctx);
			if (units & (1 << 7))
				nv50_graph_construct_xfer_tp(ctx);
			if (units & (1 << 8))
				nv50_graph_construct_xfer_tp(ctx);
			if (units & (1 << 9))
				nv50_graph_construct_xfer_tp(ctx);
		} else {
			nv50_graph_construct_gene_unk2(ctx);
		}
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;
	}

	ctx->ctxvals_pos = offset + size * 8;
	ctx->ctxvals_pos = (ctx->ctxvals_pos+0x3f)&~0x3f;
	cp_lsr (ctx, offset);
	cp_out (ctx, CP_SET_XFER_POINTER);
	cp_lsr (ctx, size);
	cp_out (ctx, CP_SEEK_1);
	cp_out (ctx, CP_XFER_1);
	cp_wait(ctx, XFER, BUSY);
}

/*
 * non-trivial demagiced parts of ctx init go here
 */

static void
nv50_graph_construct_gene_m2mf(struct nouveau_grctx *ctx)
{
	/* m2mf state */
	xf_emit (ctx, 1, 0);		/* DMA_NOTIFY instance >> 4 */
	xf_emit (ctx, 1, 0);		/* DMA_BUFFER_IN instance >> 4 */
	xf_emit (ctx, 1, 0);		/* DMA_BUFFER_OUT instance >> 4 */
	xf_emit (ctx, 1, 0);		/* OFFSET_IN */
	xf_emit (ctx, 1, 0);		/* OFFSET_OUT */
	xf_emit (ctx, 1, 0);		/* PITCH_IN */
	xf_emit (ctx, 1, 0);		/* PITCH_OUT */
	xf_emit (ctx, 1, 0);		/* LINE_LENGTH */
	xf_emit (ctx, 1, 0);		/* LINE_COUNT */
	xf_emit (ctx, 1, 0x21);		/* FORMAT: bits 0-4 INPUT_INC, bits 5-9 OUTPUT_INC */
	xf_emit (ctx, 1, 1);		/* LINEAR_IN */
	xf_emit (ctx, 1, 0x2);		/* TILING_MODE_IN: bits 0-2 y tiling, bits 3-5 z tiling */
	xf_emit (ctx, 1, 0x100);	/* TILING_PITCH_IN */
	xf_emit (ctx, 1, 0x100);	/* TILING_HEIGHT_IN */
	xf_emit (ctx, 1, 1);		/* TILING_DEPTH_IN */
	xf_emit (ctx, 1, 0);		/* TILING_POSITION_IN_Z */
	xf_emit (ctx, 1, 0);		/* TILING_POSITION_IN */
	xf_emit (ctx, 1, 1);		/* LINEAR_OUT */
	xf_emit (ctx, 1, 0x2);		/* TILING_MODE_OUT: bits 0-2 y tiling, bits 3-5 z tiling */
	xf_emit (ctx, 1, 0x100);	/* TILING_PITCH_OUT */
	xf_emit (ctx, 1, 0x100);	/* TILING_HEIGHT_OUT */
	xf_emit (ctx, 1, 1);		/* TILING_DEPTH_OUT */
	xf_emit (ctx, 1, 0);		/* TILING_POSITION_OUT_Z */
	xf_emit (ctx, 1, 0);		/* TILING_POSITION_OUT */
	xf_emit (ctx, 1, 0);		/* OFFSET_IN_HIGH */
	xf_emit (ctx, 1, 0);		/* OFFSET_OUT_HIGH */
}

static void
nv50_graph_construct_gene_unk1(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	/* end of area 2 on pre-NVA0, area 1 on NVAx */
	xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x80);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 0x80c14);
	xf_emit(ctx, 1, 0);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 1, 0x3ff);
	else
		xf_emit(ctx, 1, 0x7ff);
	switch (dev_priv->chipset) {
	case 0x50:
	case 0x86:
	case 0x98:
	case 0xaa:
	case 0xac:
		xf_emit(ctx, 0x542, 0);
		break;
	case 0x84:
	case 0x92:
	case 0x94:
	case 0x96:
		xf_emit(ctx, 0x942, 0);
		break;
	case 0xa0:
		xf_emit(ctx, 0x2042, 0);
		break;
	case 0xa5:
	case 0xa8:
		xf_emit(ctx, 0x842, 0);
		break;
	}
	xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x80);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x27);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x26);
	xf_emit(ctx, 3, 0);
}

static void
nv50_graph_construct_gene_unk10(struct nouveau_grctx *ctx)
{
	/* end of area 2 on pre-NVA0, area 1 on NVAx */
	xf_emit(ctx, 0x10, 0x04000000);
	xf_emit(ctx, 0x24, 0);
	xf_emit(ctx, 2, 0x04e3bfdf);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0x1fe21);
}

static void
nv50_graph_construct_gene_unk2(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	/* middle of area 2 on pre-NVA0, beginning of area 2 on NVA0, area 7 on >NVA0 */
	if (dev_priv->chipset != 0x50) {
		xf_emit(ctx, 5, 0);
		xf_emit(ctx, 1, 0x80c14);
		xf_emit(ctx, 2, 0);
		xf_emit(ctx, 1, 0x804);
		xf_emit(ctx, 1, 0);
		xf_emit(ctx, 2, 4);
		xf_emit(ctx, 1, 0x8100c12);
	}
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x10);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 3, 0);
	else
		xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 0x804);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x1a);
	if (dev_priv->chipset != 0x50)
		xf_emit(ctx, 1, 0x7f);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x80c14);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x8100c12);
	xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x10);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x8100c12);
	xf_emit(ctx, 6, 0);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 1, 0x3ff);
	else
		xf_emit(ctx, 1, 0x7ff);
	xf_emit(ctx, 1, 0x80c14);
	xf_emit(ctx, 0x38, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0x10);
	xf_emit(ctx, 0x38, 0);
	xf_emit(ctx, 2, 0x88);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 0x16, 0);
	xf_emit(ctx, 1, 0x26);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0x3f800000);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 4, 0);
	else
		xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0x1a);
	xf_emit(ctx, 1, 0x10);
	if (dev_priv->chipset != 0x50)
		xf_emit(ctx, 0x28, 0);
	else
		xf_emit(ctx, 0x25, 0);
	xf_emit(ctx, 1, 0x52);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x26);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x1a);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0x00ffff00);
	xf_emit(ctx, 1, 0);
}

static void
nv50_graph_construct_gene_unk3(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	/* end of area 0 on pre-NVA0, beginning of area 6 on NVAx */
	xf_emit(ctx, 1, 0x3f);
	xf_emit(ctx, 0xa, 0);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 2, 0x04000000);
	xf_emit(ctx, 8, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 4);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 0x10, 0);
	else
		xf_emit(ctx, 0x11, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x1001);
	xf_emit(ctx, 4, 0xffff);
	xf_emit(ctx, 0x20, 0);
	xf_emit(ctx, 0x10, 0x3f800000);
	xf_emit(ctx, 1, 0x10);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 1, 0);
	else
		xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 3);
	xf_emit(ctx, 2, 0);
}

static void
nv50_graph_construct_gene_unk4(struct nouveau_grctx *ctx)
{
	/* middle of area 0 on pre-NVA0, middle of area 6 on NVAx */
	xf_emit(ctx, 2, 0x04000000);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x80);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0x80);
	xf_emit(ctx, 1, 0);
}

static void
nv50_graph_construct_gene_unk5(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	/* middle of area 0 on pre-NVA0 [after m2mf], end of area 2 on NVAx */
	xf_emit(ctx, 2, 4);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 0x1c4d, 0);
	else
		xf_emit(ctx, 0x1c4b, 0);
	xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0x8100c12);
	if (dev_priv->chipset != 0x50)
		xf_emit(ctx, 1, 3);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x8100c12);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x80c14);
	xf_emit(ctx, 1, 1);
	if (dev_priv->chipset >= 0xa0)
		xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0x80c14);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0x8100c12);
	xf_emit(ctx, 1, 0x27);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0x3c1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0x16, 0);
	xf_emit(ctx, 1, 0x8100c12);
	xf_emit(ctx, 1, 0);
}

static void
nv50_graph_construct_gene_unk6(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	/* beginning of area 1 on pre-NVA0 [after m2mf], area 3 on NVAx */
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 0xf);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 8, 0);
	else
		xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 0x20);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 0x11, 0);
	else if (dev_priv->chipset >= 0xa0)
		xf_emit(ctx, 0xf, 0);
	else
		xf_emit(ctx, 0xe, 0);
	xf_emit(ctx, 1, 0x1a);
	xf_emit(ctx, 0xd, 0);
	xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 8);
	xf_emit(ctx, 1, 0);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 1, 0x3ff);
	else
		xf_emit(ctx, 1, 0x7ff);
	if (dev_priv->chipset == 0xa8)
		xf_emit(ctx, 1, 0x1e00);
	xf_emit(ctx, 0xc, 0);
	xf_emit(ctx, 1, 0xf);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 0x125, 0);
	else if (dev_priv->chipset < 0xa0)
		xf_emit(ctx, 0x126, 0);
	else if (dev_priv->chipset == 0xa0 || dev_priv->chipset >= 0xaa)
		xf_emit(ctx, 0x124, 0);
	else
		xf_emit(ctx, 0x1f7, 0);
	xf_emit(ctx, 1, 0xf);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 3, 0);
	else
		xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 0xa1, 0);
	else
		xf_emit(ctx, 0x5a, 0);
	xf_emit(ctx, 1, 0xf);
	if (dev_priv->chipset < 0xa0)
		xf_emit(ctx, 0x834, 0);
	else if (dev_priv->chipset == 0xa0)
		xf_emit(ctx, 0x1873, 0);
	else if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 0x8ba, 0);
	else
		xf_emit(ctx, 0x833, 0);
	xf_emit(ctx, 1, 0xf);
	xf_emit(ctx, 0xf, 0);
}

static void
nv50_graph_construct_gene_unk7(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	/* middle of area 1 on pre-NVA0 [after m2mf], middle of area 6 on NVAx */
	xf_emit(ctx, 2, 0);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 2, 1);
	else
		xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 2, 0x100);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 8);
	xf_emit(ctx, 5, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 3, 1);
	xf_emit(ctx, 1, 0xcf);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 6, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 3, 1);
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x15);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0x4444480);
	xf_emit(ctx, 0x37, 0);
}

static void
nv50_graph_construct_gene_unk8(struct nouveau_grctx *ctx)
{
	/* middle of area 1 on pre-NVA0 [after m2mf], middle of area 0 on NVAx */
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 0x8100c12);
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 0x100);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0x10001);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x10001);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x10001);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 2);
}

static void
nv50_graph_construct_gene_unk9(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	/* middle of area 2 on pre-NVA0 [after m2mf], end of area 0 on NVAx */
	xf_emit(ctx, 1, 0x3f800000);
	xf_emit(ctx, 6, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 0x1a);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0x12, 0);
	xf_emit(ctx, 1, 0x00ffff00);
	xf_emit(ctx, 6, 0);
	xf_emit(ctx, 1, 0xf);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0x0fac6881);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 0xf, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 2, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 1, 3);
	else if (dev_priv->chipset >= 0xa0)
		xf_emit(ctx, 1, 1);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 2, 0x04000000);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 5);
	xf_emit(ctx, 1, 0x52);
	if (dev_priv->chipset == 0x50) {
		xf_emit(ctx, 0x13, 0);
	} else {
		xf_emit(ctx, 4, 0);
		xf_emit(ctx, 1, 1);
		if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
			xf_emit(ctx, 0x11, 0);
		else
			xf_emit(ctx, 0x10, 0);
	}
	xf_emit(ctx, 0x10, 0x3f800000);
	xf_emit(ctx, 1, 0x10);
	xf_emit(ctx, 0x26, 0);
	xf_emit(ctx, 1, 0x8100c12);
	xf_emit(ctx, 1, 5);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 4, 0xffff);
	if (dev_priv->chipset != 0x50)
		xf_emit(ctx, 1, 3);
	if (dev_priv->chipset < 0xa0)
		xf_emit(ctx, 0x1f, 0);
	else if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 0xc, 0);
	else
		xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0x00ffff00);
	xf_emit(ctx, 1, 0x1a);
	if (dev_priv->chipset != 0x50) {
		xf_emit(ctx, 1, 0);
		xf_emit(ctx, 1, 3);
	}
	if (dev_priv->chipset < 0xa0)
		xf_emit(ctx, 0x26, 0);
	else
		xf_emit(ctx, 0x3c, 0);
	xf_emit(ctx, 1, 0x102);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 4, 4);
	if (dev_priv->chipset >= 0xa0)
		xf_emit(ctx, 8, 0);
	xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 1, 0x3ff);
	else
		xf_emit(ctx, 1, 0x7ff);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x102);
	xf_emit(ctx, 9, 0);
	xf_emit(ctx, 4, 4);
	xf_emit(ctx, 0x2c, 0);
}

static void
nv50_graph_construct_gene_ropc(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	int magic2;
	if (dev_priv->chipset == 0x50) {
		magic2 = 0x00003e60;
	} else if (dev_priv->chipset <= 0xa0 || dev_priv->chipset >= 0xaa) {
		magic2 = 0x001ffe67;
	} else {
		magic2 = 0x00087e67;
	}
	xf_emit(ctx, 8, 0);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, magic2);
	xf_emit(ctx, 4, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 1, 1);
	xf_emit(ctx, 7, 0);
	if (dev_priv->chipset >= 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 1, 0x15);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x10);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 4, 0);
	if (dev_priv->chipset == 0x86 || dev_priv->chipset == 0x92 || dev_priv->chipset == 0x98 || dev_priv->chipset >= 0xa0) {
		xf_emit(ctx, 1, 4);
		xf_emit(ctx, 1, 0x400);
		xf_emit(ctx, 1, 0x300);
		xf_emit(ctx, 1, 0x1001);
		if (dev_priv->chipset != 0xa0) {
			if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
				xf_emit(ctx, 1, 0);
			else
				xf_emit(ctx, 1, 0x15);
		}
		xf_emit(ctx, 3, 0);
	}
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 8, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x10);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0x13, 0);
	xf_emit(ctx, 1, 0x10);
	xf_emit(ctx, 0x10, 0);
	xf_emit(ctx, 0x10, 0x3f800000);
	xf_emit(ctx, 0x19, 0);
	xf_emit(ctx, 1, 0x10);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x3f);
	xf_emit(ctx, 6, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	if (dev_priv->chipset >= 0xa0) {
		xf_emit(ctx, 2, 0);
		xf_emit(ctx, 1, 0x1001);
		xf_emit(ctx, 0xb, 0);
	} else {
		xf_emit(ctx, 0xc, 0);
	}
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0xf);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0x11);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 4, 0);
	else
		xf_emit(ctx, 6, 0);
	xf_emit(ctx, 3, 1);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, magic2);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x0fac6881);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		xf_emit(ctx, 1, 0);
		xf_emit(ctx, 0x18, 1);
		xf_emit(ctx, 8, 2);
		xf_emit(ctx, 8, 1);
		xf_emit(ctx, 8, 2);
		xf_emit(ctx, 8, 1);
		xf_emit(ctx, 3, 0);
		xf_emit(ctx, 1, 1);
		xf_emit(ctx, 5, 0);
		xf_emit(ctx, 1, 1);
		xf_emit(ctx, 0x16, 0);
	} else {
		if (dev_priv->chipset >= 0xa0)
			xf_emit(ctx, 0x1b, 0);
		else
			xf_emit(ctx, 0x15, 0);
	}
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 2, 1);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 2, 1);
	if (dev_priv->chipset >= 0xa0)
		xf_emit(ctx, 4, 0);
	else
		xf_emit(ctx, 3, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		xf_emit(ctx, 0x10, 1);
		xf_emit(ctx, 8, 2);
		xf_emit(ctx, 0x10, 1);
		xf_emit(ctx, 8, 2);
		xf_emit(ctx, 8, 1);
		xf_emit(ctx, 3, 0);
	}
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0x5b, 0);
}

static void
nv50_graph_construct_xfer_tp_x1(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	int magic3;
	if (dev_priv->chipset == 0x50)
		magic3 = 0x1000;
	else if (dev_priv->chipset == 0x86 || dev_priv->chipset == 0x98 || dev_priv->chipset >= 0xa8)
		magic3 = 0x1e00;
	else
		magic3 = 0;
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 4);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 0x24, 0);
	else if (dev_priv->chipset >= 0xa0)
		xf_emit(ctx, 0x14, 0);
	else
		xf_emit(ctx, 0x15, 0);
	xf_emit(ctx, 2, 4);
	if (dev_priv->chipset >= 0xa0)
		xf_emit(ctx, 1, 0x03020100);
	else
		xf_emit(ctx, 1, 0x00608080);
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 2, 4);
	xf_emit(ctx, 1, 0x80);
	if (magic3)
		xf_emit(ctx, 1, magic3);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 0x24, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 0x80);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 0x03020100);
	xf_emit(ctx, 1, 3);
	if (magic3)
		xf_emit(ctx, 1, magic3);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 3);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 4);
	if (dev_priv->chipset == 0x94 || dev_priv->chipset == 0x96)
		xf_emit(ctx, 0x1024, 0);
	else if (dev_priv->chipset < 0xa0)
		xf_emit(ctx, 0xa24, 0);
	else if (dev_priv->chipset == 0xa0 || dev_priv->chipset >= 0xaa)
		xf_emit(ctx, 0x214, 0);
	else
		xf_emit(ctx, 0x414, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 3);
	xf_emit(ctx, 2, 0);
}

static void
nv50_graph_construct_xfer_tp_x2(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	int magic1, magic2;
	if (dev_priv->chipset == 0x50) {
		magic1 = 0x3ff;
		magic2 = 0x00003e60;
	} else if (dev_priv->chipset <= 0xa0 || dev_priv->chipset >= 0xaa) {
		magic1 = 0x7ff;
		magic2 = 0x001ffe67;
	} else {
		magic1 = 0x7ff;
		magic2 = 0x00087e67;
	}
	xf_emit(ctx, 3, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0xc, 0);
	xf_emit(ctx, 1, 0xf);
	xf_emit(ctx, 0xb, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 4, 0xffff);
	xf_emit(ctx, 8, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 5, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 2, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		xf_emit(ctx, 1, 3);
		xf_emit(ctx, 1, 0);
	} else if (dev_priv->chipset >= 0xa0)
		xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0xa, 0);
	xf_emit(ctx, 2, 1);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 2, 1);
	xf_emit(ctx, 1, 2);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		xf_emit(ctx, 1, 0);
		xf_emit(ctx, 0x18, 1);
		xf_emit(ctx, 8, 2);
		xf_emit(ctx, 8, 1);
		xf_emit(ctx, 8, 2);
		xf_emit(ctx, 8, 1);
		xf_emit(ctx, 1, 0);
	}
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0x0fac6881);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 3, 0xcf);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0xa, 0);
	xf_emit(ctx, 2, 1);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 2, 1);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 8, 1);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0x0fac6881);
	xf_emit(ctx, 1, 0xf);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, magic2);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0x11);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 2, 1);
	else
		xf_emit(ctx, 1, 1);
	if(dev_priv->chipset == 0x50)
		xf_emit(ctx, 1, 0);
	else
		xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 5, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0x0fac6881);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, magic1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 2, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0x28, 0);
	xf_emit(ctx, 8, 8);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0x0fac6881);
	xf_emit(ctx, 8, 0x400);
	xf_emit(ctx, 8, 0x300);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0xf);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0x20);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 1, 0x100);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0x40);
	xf_emit(ctx, 1, 0x100);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 3);
	xf_emit(ctx, 4, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, magic2);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 1, 0x0fac6881);
	xf_emit(ctx, 9, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x400);
	xf_emit(ctx, 1, 0x300);
	xf_emit(ctx, 1, 0x1001);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 4, 0);
	else
		xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0x0fac6881);
	xf_emit(ctx, 1, 0xf);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		xf_emit(ctx, 0x15, 0);
		xf_emit(ctx, 1, 1);
		xf_emit(ctx, 3, 0);
	} else
		xf_emit(ctx, 0x17, 0);
	if (dev_priv->chipset >= 0xa0)
		xf_emit(ctx, 1, 0x0fac6881);
	xf_emit(ctx, 1, magic2);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 2, 1);
	xf_emit(ctx, 3, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 2, 1);
	else
		xf_emit(ctx, 1, 1);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 2, 0);
	else if (dev_priv->chipset != 0x50)
		xf_emit(ctx, 1, 0);
}

static void
nv50_graph_construct_xfer_tp_x3(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 2, 0);
	else
		xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0x2a712488);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x4085c000);
	xf_emit(ctx, 1, 0x40);
	xf_emit(ctx, 1, 0x100);
	xf_emit(ctx, 1, 0x10100);
	xf_emit(ctx, 1, 0x02800000);
}

static void
nv50_graph_construct_xfer_tp_x4(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	xf_emit(ctx, 2, 0x04e3bfdf);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x00ffff00);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 2, 1);
	else
		xf_emit(ctx, 1, 1);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 0x00ffff00);
	xf_emit(ctx, 8, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0x30201000);
	xf_emit(ctx, 1, 0x70605040);
	xf_emit(ctx, 1, 0xb8a89888);
	xf_emit(ctx, 1, 0xf8e8d8c8);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x1a);
}

static void
nv50_graph_construct_xfer_tp_x5(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 0xfac6881);
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 2, 1);
	xf_emit(ctx, 2, 0);
	xf_emit(ctx, 1, 1);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 0xb, 0);
	else
		xf_emit(ctx, 0xa, 0);
	xf_emit(ctx, 8, 1);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0xfac6881);
	xf_emit(ctx, 1, 0xf);
	xf_emit(ctx, 7, 0);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 1, 1);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		xf_emit(ctx, 6, 0);
		xf_emit(ctx, 1, 1);
		xf_emit(ctx, 6, 0);
	} else {
		xf_emit(ctx, 0xb, 0);
	}
}

static void
nv50_graph_construct_xfer_tp(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	if (dev_priv->chipset < 0xa0) {
		nv50_graph_construct_xfer_tp_x1(ctx);
		nv50_graph_construct_xfer_tp_x2(ctx);
		nv50_graph_construct_xfer_tp_x3(ctx);
		if (dev_priv->chipset == 0x50)
			xf_emit(ctx, 0xf, 0);
		else
			xf_emit(ctx, 0x12, 0);
		nv50_graph_construct_xfer_tp_x4(ctx);
	} else {
		nv50_graph_construct_xfer_tp_x3(ctx);
		if (dev_priv->chipset < 0xaa)
			xf_emit(ctx, 0xc, 0);
		else
			xf_emit(ctx, 0xa, 0);
		nv50_graph_construct_xfer_tp_x2(ctx);
		nv50_graph_construct_xfer_tp_x5(ctx);
		nv50_graph_construct_xfer_tp_x4(ctx);
		nv50_graph_construct_xfer_tp_x1(ctx);
	}
}

static void
nv50_graph_construct_xfer_tp2(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	int i, mpcnt;
	if (dev_priv->chipset == 0x98 || dev_priv->chipset == 0xaa)
		mpcnt = 1;
	else if (dev_priv->chipset < 0xa0 || dev_priv->chipset >= 0xa8)
		mpcnt = 2;
	else
		mpcnt = 3;
	for (i = 0; i < mpcnt; i++) {
		xf_emit(ctx, 1, 0);
		xf_emit(ctx, 1, 0x80);
		xf_emit(ctx, 1, 0x80007004);
		xf_emit(ctx, 1, 0x04000400);
		if (dev_priv->chipset >= 0xa0)
			xf_emit(ctx, 1, 0xc0);
		xf_emit(ctx, 1, 0x1000);
		xf_emit(ctx, 2, 0);
		if (dev_priv->chipset == 0x86 || dev_priv->chipset == 0x98 || dev_priv->chipset >= 0xa8) {
			xf_emit(ctx, 1, 0xe00);
			xf_emit(ctx, 1, 0x1e00);
		}
		xf_emit(ctx, 1, 1);
		xf_emit(ctx, 2, 0);
		if (dev_priv->chipset == 0x50)
			xf_emit(ctx, 2, 0x1000);
		xf_emit(ctx, 1, 1);
		xf_emit(ctx, 1, 0);
		xf_emit(ctx, 1, 4);
		xf_emit(ctx, 1, 2);
		if (dev_priv->chipset >= 0xaa)
			xf_emit(ctx, 0xb, 0);
		else if (dev_priv->chipset >= 0xa0)
			xf_emit(ctx, 0xc, 0);
		else
			xf_emit(ctx, 0xa, 0);
	}
	xf_emit(ctx, 1, 0x08100c12);
	xf_emit(ctx, 1, 0);
	if (dev_priv->chipset >= 0xa0) {
		xf_emit(ctx, 1, 0x1fe21);
	}
	xf_emit(ctx, 5, 0);
	xf_emit(ctx, 4, 0xffff);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 2, 0x10001);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 0x1fe21);
	xf_emit(ctx, 1, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 1, 1);
	xf_emit(ctx, 4, 0);
	xf_emit(ctx, 1, 0x08100c12);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 8, 0);
	xf_emit(ctx, 1, 0xfac6881);
	xf_emit(ctx, 1, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa)
		xf_emit(ctx, 1, 3);
	xf_emit(ctx, 3, 0);
	xf_emit(ctx, 1, 4);
	xf_emit(ctx, 9, 0);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 2, 1);
	xf_emit(ctx, 1, 2);
	xf_emit(ctx, 3, 1);
	xf_emit(ctx, 1, 0);
	if (dev_priv->chipset > 0xa0 && dev_priv->chipset < 0xaa) {
		xf_emit(ctx, 8, 2);
		xf_emit(ctx, 0x10, 1);
		xf_emit(ctx, 8, 2);
		xf_emit(ctx, 0x18, 1);
		xf_emit(ctx, 3, 0);
	}
	xf_emit(ctx, 1, 4);
	if (dev_priv->chipset == 0x50)
		xf_emit(ctx, 0x3a0, 0);
	else if (dev_priv->chipset < 0x94)
		xf_emit(ctx, 0x3a2, 0);
	else if (dev_priv->chipset == 0x98 || dev_priv->chipset == 0xaa)
		xf_emit(ctx, 0x39f, 0);
	else
		xf_emit(ctx, 0x3a3, 0);
	xf_emit(ctx, 1, 0x11);
	xf_emit(ctx, 1, 0);
	xf_emit(ctx, 1, 1);
	xf_emit(ctx, 0x2d, 0);
}

static void
nv50_graph_construct_xfer2(struct nouveau_grctx *ctx)
{
	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
	int i;
	uint32_t offset;
	uint32_t units = nv_rd32 (ctx->dev, 0x1540);
	int size = 0;

	offset = (ctx->ctxvals_pos+0x3f)&~0x3f;

	if (dev_priv->chipset < 0xa0) {
		for (i = 0; i < 8; i++) {
			ctx->ctxvals_pos = offset + i;
			if (i == 0)
				xf_emit(ctx, 1, 0x08100c12);
			if (units & (1 << i))
				nv50_graph_construct_xfer_tp2(ctx);
			if ((ctx->ctxvals_pos-offset)/8 > size)
				size = (ctx->ctxvals_pos-offset)/8;
		}
	} else {
		/* Strand 0: TPs 0, 1 */
		ctx->ctxvals_pos = offset;
		xf_emit(ctx, 1, 0x08100c12);
		if (units & (1 << 0))
			nv50_graph_construct_xfer_tp2(ctx);
		if (units & (1 << 1))
			nv50_graph_construct_xfer_tp2(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 0: TPs 2, 3 */
		ctx->ctxvals_pos = offset + 1;
		if (units & (1 << 2))
			nv50_graph_construct_xfer_tp2(ctx);
		if (units & (1 << 3))
			nv50_graph_construct_xfer_tp2(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 0: TPs 4, 5, 6 */
		ctx->ctxvals_pos = offset + 2;
		if (units & (1 << 4))
			nv50_graph_construct_xfer_tp2(ctx);
		if (units & (1 << 5))
			nv50_graph_construct_xfer_tp2(ctx);
		if (units & (1 << 6))
			nv50_graph_construct_xfer_tp2(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;

		/* Strand 0: TPs 7, 8, 9 */
		ctx->ctxvals_pos = offset + 3;
		if (units & (1 << 7))
			nv50_graph_construct_xfer_tp2(ctx);
		if (units & (1 << 8))
			nv50_graph_construct_xfer_tp2(ctx);
		if (units & (1 << 9))
			nv50_graph_construct_xfer_tp2(ctx);
		if ((ctx->ctxvals_pos-offset)/8 > size)
			size = (ctx->ctxvals_pos-offset)/8;
	}
	ctx->ctxvals_pos = offset + size * 8;
	ctx->ctxvals_pos = (ctx->ctxvals_pos+0x3f)&~0x3f;
	cp_lsr (ctx, offset);
	cp_out (ctx, CP_SET_XFER_POINTER);
	cp_lsr (ctx, size);
	cp_out (ctx, CP_SEEK_2);
	cp_out (ctx, CP_XFER_2);
	cp_wait(ctx, XFER, BUSY);
}