ctxnv50.c

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/*
 * 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.
 */

#include <core/gpuobj.h>

#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_XFER_SWITCH           ((0 * 32) + 0xe)
#define CP_FLAG_XFER_SWITCH_DISABLE   0
#define CP_FLAG_XFER_SWITCH_ENABLE    1
#define CP_FLAG_STATE                 ((0 * 32) + 0x1c)
#define CP_FLAG_STATE_STOPPED         0
#define CP_FLAG_STATE_RUNNING         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_NEWCTX                ((2 * 32) + 10)
#define CP_FLAG_NEWCTX_BUSY           0
#define CP_FLAG_NEWCTX_DONE           1
#define CP_FLAG_XFER                  ((2 * 32) + 11)
#define CP_FLAG_XFER_IDLE             0
#define CP_FLAG_XFER_BUSY             1
#define CP_FLAG_ALWAYS                ((2 * 32) + 13)
#define CP_FLAG_ALWAYS_FALSE          0
#define CP_FLAG_ALWAYS_TRUE           1
#define CP_FLAG_INTR                  ((2 * 32) + 15)
#define CP_FLAG_INTR_NOT_PENDING      0
#define CP_FLAG_INTR_PENDING          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 "nv50.h"
#include "ctx.h"

#define IS_NVA3F(x) (((x) > 0xa0 && (x) < 0xaa) || (x) == 0xaf)
#define IS_NVAAF(x) ((x) >= 0xaa && (x) <= 0xac)

/*
 * 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. */

static int
nv50_grctx_generate(struct nouveau_grctx *ctx)
{
    cp_set (ctx, STATE, RUNNING);
    cp_set (ctx, XFER_SWITCH, ENABLE);
    /* 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_prepare_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_wait(ctx, INTR, PENDING);
    cp_bra (ctx, STATUS, BUSY, cp_setup_save);
    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_set (ctx, XFER_SWITCH, DISABLE);
    cp_set (ctx, STATE, STOPPED);
    cp_out (ctx, CP_END);
    ctx->ctxvals_pos += 0x400; /* padding... no idea why you need it */

    return 0;
}

void
nv50_grctx_fill(struct nouveau_device *device, struct nouveau_gpuobj *mem)
{
    nv50_grctx_generate(&(struct nouveau_grctx) {
                 .device = device,
                 .mode = NOUVEAU_GRCTX_VALS,
                 .data = mem,
               });
}

int
nv50_grctx_init(struct nouveau_device *device, u32 *size)
{
    u32 *ctxprog = kmalloc(512 * 4, GFP_KERNEL), i;
    struct nouveau_grctx ctx = {
        .device = device,
        .mode = NOUVEAU_GRCTX_PROG,
        .data = ctxprog,
        .ctxprog_max = 512,
    };

    if (!ctxprog)
        return -ENOMEM;
    nv50_grctx_generate(&ctx);

    nv_wr32(device, 0x400324, 0);
    for (i = 0; i < ctx.ctxprog_len; i++)
        nv_wr32(device, 0x400328, ctxprog[i]);
    *size = ctx.ctxvals_pos * 4;
    kfree(ctxprog);
    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_ddata(struct nouveau_grctx *ctx);

static void
nv50_graph_construct_mmio(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int i, j;
    int offset, base;
    u32 units = nv_rd32 (ctx->device, 0x1540);

    /* 0800: DISPATCH */
    cp_ctx(ctx, 0x400808, 7);
    gr_def(ctx, 0x400814, 0x00000030);
    cp_ctx(ctx, 0x400834, 0x32);
    if (device->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 (IS_NVA3F(device->chipset))
        gr_def(ctx, 0x400894, 0x00001000);
    gr_def(ctx, 0x4008e8, 0x00000003);
    gr_def(ctx, 0x4008ec, 0x00001000);
    if (device->chipset == 0x50)
        cp_ctx(ctx, 0x400908, 0xb);
    else if (device->chipset < 0xa0)
        cp_ctx(ctx, 0x400908, 0xc);
    else
        cp_ctx(ctx, 0x400908, 0xe);

    if (device->chipset >= 0xa0)
        cp_ctx(ctx, 0x400b00, 0x1);
    if (IS_NVA3F(device->chipset)) {
        cp_ctx(ctx, 0x400b10, 0x1);
        gr_def(ctx, 0x400b10, 0x0001629d);
        cp_ctx(ctx, 0x400b20, 0x1);
        gr_def(ctx, 0x400b20, 0x0001629d);
    }

    nv50_graph_construct_mmio_ddata(ctx);

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

    /* 1000 */
    if (device->chipset < 0xa0) {
        cp_ctx(ctx, 0x401008, 0x4);
        gr_def(ctx, 0x401014, 0x00001000);
    } else if (!IS_NVA3F(device->chipset)) {
        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 (device->chipset == 0x50)
        gr_def(ctx, 0x40142c, 0x0001fd87);
    else
        gr_def(ctx, 0x40142c, 0x00000187);
    cp_ctx(ctx, 0x401540, 0x5);
    gr_def(ctx, 0x401550, 0x00001018);

    /* 1800: STREAMOUT */
    cp_ctx(ctx, 0x401814, 0x1);
    gr_def(ctx, 0x401814, 0x000000ff);
    if (device->chipset == 0x50) {
        cp_ctx(ctx, 0x40181c, 0xe);
        gr_def(ctx, 0x401850, 0x00000004);
    } else if (device->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 (device->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 0xa3:
    case 0xa5:
    case 0xa8:
    case 0xaf:
        gr_def(ctx, 0x401c00, 0x142500df);
        break;
    }

    /* 2000 */

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

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

    /* 2C00: ZCULL */
    cp_ctx(ctx, 0x402c08, 0x6);
    if (device->chipset != 0x50)
        gr_def(ctx, 0x402c14, 0x01000000);
    gr_def(ctx, 0x402c18, 0x000000ff);
    if (device->chipset == 0x50)
        cp_ctx(ctx, 0x402ca0, 0x1);
    else
        cp_ctx(ctx, 0x402ca0, 0x2);
    if (device->chipset < 0xa0)
        gr_def(ctx, 0x402ca0, 0x00000400);
    else if (!IS_NVA3F(device->chipset))
        gr_def(ctx, 0x402ca0, 0x00000800);
    else
        gr_def(ctx, 0x402ca0, 0x00000400);
    cp_ctx(ctx, 0x402cac, 0x4);

    /* 3000: ENG2D */
    cp_ctx(ctx, 0x403004, 0x1);
    gr_def(ctx, 0x403004, 0x00000001);

    /* 3400 */
    if (device->chipset >= 0xa0) {
        cp_ctx(ctx, 0x403404, 0x1);
        gr_def(ctx, 0x403404, 0x00000001);
    }

    /* 5000: CCACHE */
    cp_ctx(ctx, 0x405000, 0x1);
    switch (device->chipset) {
    case 0x50:
        gr_def(ctx, 0x405000, 0x00300080);
        break;
    case 0x84:
    case 0xa0:
    case 0xa3:
    case 0xa5:
    case 0xa8:
    case 0xaa:
    case 0xac:
    case 0xaf:
        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);

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

    /* 6800: M2MF */
    if (device->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 (device->chipset == 0x98)
            gr_def(ctx, 0x406818, 0x00000f80);
        else
            gr_def(ctx, 0x406818, 0x00001f80);
        if (IS_NVA3F(device->chipset))
            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 (device->chipset == 0x50)
                gr_def(ctx, 0x407000 + (i<<8), 0x1b74f820);
            else if (device->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 (device->chipset == 0x50) {
                cp_ctx(ctx, 0x407010 + (i<<8), 1);
            } else if (device->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 (device->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 (device->chipset != 0xa5)
                gr_def(ctx, 0x407080 + (i<<8), 0x027c10fa);
            else
                gr_def(ctx, 0x407080 + (i<<8), 0x827c10fa);
            if (device->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 (device->chipset < 0xa0)
                cp_ctx(ctx, 0x407094 + (i<<8), 1);
            else if (!IS_NVA3F(device->chipset))
                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 (device->chipset < 0x90)
        gr_def(ctx, 0x407c00, 0x00010040);
    else if (device->chipset < 0xa0)
        gr_def(ctx, 0x407c00, 0x00390040);
    else
        gr_def(ctx, 0x407c00, 0x003d0040);
    gr_def(ctx, 0x407c08, 0x00000022);
    if (device->chipset >= 0xa0) {
        cp_ctx(ctx, 0x407c10, 0x3);
        cp_ctx(ctx, 0x407c20, 0x1);
        cp_ctx(ctx, 0x407c2c, 0x1);
    }

    if (device->chipset < 0xa0) {
        cp_ctx(ctx, 0x407d00, 0x9);
    } else {
        cp_ctx(ctx, 0x407d00, 0x15);
    }
    if (device->chipset == 0x98)
        gr_def(ctx, 0x407d08, 0x00380040);
    else {
        if (device->chipset < 0x90)
            gr_def(ctx, 0x407d08, 0x00010040);
        else if (device->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 (device->chipset < 0xa0)
                base = 0x408000 + (i<<12);
            else
                base = 0x408000 + (i<<11);
            if (device->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 < (device->chipset < 0xa0 ? 2 : 4); j++) {
                if (!(units & (1 << (j+24)))) continue;
                if (device->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 (device->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, 0x018c0000);
                    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 0xa3:
                case 0xa8:
                case 0xaa:
                case 0xac:
                case 0xaf:
                    gr_def(ctx, offset + 0x1c, 0x300c0000);
                    break;
                }
                gr_def(ctx, offset + 0x40, 0x00010401);
                if (device->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 (device->chipset == 0x50)
                    gr_def(ctx, offset + 0x5c, 0x00000080);
                else
                    gr_def(ctx, offset + 0x5c, 0x08000080);
                if (device->chipset >= 0xa0)
                    gr_def(ctx, offset + 0x68, 0x0000003e);
            }

            if (device->chipset < 0xa0)
                cp_ctx(ctx, base + 0x300, 0x4);
            else
                cp_ctx(ctx, base + 0x300, 0x5);
            if (device->chipset == 0x50)
                gr_def(ctx, base + 0x304, 0x00007070);
            else if (device->chipset < 0xa0)
                gr_def(ctx, base + 0x304, 0x00027070);
            else if (!IS_NVA3F(device->chipset))
                gr_def(ctx, base + 0x304, 0x01127070);
            else
                gr_def(ctx, base + 0x304, 0x05127070);

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

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

            if (device->chipset < 0xa0) {
                cp_ctx(ctx, base + 0x340, 9);
                offset = base + 0x340;
            } else if (!IS_NVA3F(device->chipset)) {
                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 (device->chipset == 0x84)
                gr_def(ctx, offset + 0x8, 0x05100202);
            else
                gr_def(ctx, offset + 0x8, 0x05010202);
            gr_def(ctx, offset + 0xc, 0x00030201);
            if (device->chipset == 0xa3)
                cp_ctx(ctx, base + 0x36c, 1);

            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 (device->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 (device->chipset == 0x50 || IS_NVAAF(device->chipset))
                gr_def(ctx, offset + 0xc, 0x00008000);
            gr_def(ctx, offset + 0x14, 0x00039e00);
            cp_ctx(ctx, offset + 0x1c, 2);
            if (device->chipset == 0x50)
                gr_def(ctx, offset + 0x1c, 0x00000040);
            else
                gr_def(ctx, offset + 0x1c, 0x00000100);
            gr_def(ctx, offset + 0x20, 0x00003800);

            if (device->chipset >= 0xa0) {
                cp_ctx(ctx, base + 0x54c, 2);
                if (!IS_NVA3F(device->chipset))
                    gr_def(ctx, base + 0x54c, 0x003fe006);
                else
                    gr_def(ctx, base + 0x54c, 0x003fe007);
                gr_def(ctx, base + 0x550, 0x003fe000);
            }

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

            if (device->chipset < 0xa0)
                offset = base + 0xe00;
            else
                offset = base + 0x700;
            cp_ctx(ctx, offset, 2);
            if (device->chipset < 0xa0)
                gr_def(ctx, offset, 0x0077f005);
            else if (device->chipset == 0xa5)
                gr_def(ctx, offset, 0x6cf7f007);
            else if (device->chipset == 0xa8)
                gr_def(ctx, offset, 0x6cfff007);
            else if (device->chipset == 0xac)
                gr_def(ctx, offset, 0x0cfff007);
            else
                gr_def(ctx, offset, 0x0cf7f007);
            if (device->chipset == 0x50)
                gr_def(ctx, offset + 0x4, 0x00007fff);
            else if (device->chipset < 0xa0)
                gr_def(ctx, offset + 0x4, 0x003f7fff);
            else
                gr_def(ctx, offset + 0x4, 0x02bf7fff);
            cp_ctx(ctx, offset + 0x2c, 1);
            if (device->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 (device->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);
            }
        }
    }
}

static void
dd_emit(struct nouveau_grctx *ctx, int num, u32 val) {
    int i;
    if (val && ctx->mode == NOUVEAU_GRCTX_VALS)
        for (i = 0; i < num; i++)
            nv_wo32(ctx->data, 4 * (ctx->ctxvals_pos + i), val);
    ctx->ctxvals_pos += num;
}

static void
nv50_graph_construct_mmio_ddata(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int base, num;
    base = ctx->ctxvals_pos;

    /* tesla state */
    dd_emit(ctx, 1, 0); /* 00000001 UNK0F90 */
    dd_emit(ctx, 1, 0); /* 00000001 UNK135C */

    /* SRC_TIC state */
    dd_emit(ctx, 1, 0); /* 00000007 SRC_TILE_MODE_Z */
    dd_emit(ctx, 1, 2); /* 00000007 SRC_TILE_MODE_Y */
    dd_emit(ctx, 1, 1); /* 00000001 SRC_LINEAR #1 */
    dd_emit(ctx, 1, 0); /* 000000ff SRC_ADDRESS_HIGH */
    dd_emit(ctx, 1, 0); /* 00000001 SRC_SRGB */
    if (device->chipset >= 0x94)
        dd_emit(ctx, 1, 0); /* 00000003 eng2d UNK0258 */
    dd_emit(ctx, 1, 1); /* 00000fff SRC_DEPTH */
    dd_emit(ctx, 1, 0x100); /* 0000ffff SRC_HEIGHT */

    /* turing state */
    dd_emit(ctx, 1, 0);     /* 0000000f TEXTURES_LOG2 */
    dd_emit(ctx, 1, 0);     /* 0000000f SAMPLERS_LOG2 */
    dd_emit(ctx, 1, 0);     /* 000000ff CB_DEF_ADDRESS_HIGH */
    dd_emit(ctx, 1, 0);     /* ffffffff CB_DEF_ADDRESS_LOW */
    dd_emit(ctx, 1, 0);     /* ffffffff SHARED_SIZE */
    dd_emit(ctx, 1, 2);     /* ffffffff REG_MODE */
    dd_emit(ctx, 1, 1);     /* 0000ffff BLOCK_ALLOC_THREADS */
    dd_emit(ctx, 1, 1);     /* 00000001 LANES32 */
    dd_emit(ctx, 1, 0);     /* 000000ff UNK370 */
    dd_emit(ctx, 1, 0);     /* 000000ff USER_PARAM_UNK */
    dd_emit(ctx, 1, 0);     /* 000000ff USER_PARAM_COUNT */
    dd_emit(ctx, 1, 1);     /* 000000ff UNK384 bits 8-15 */
    dd_emit(ctx, 1, 0x3fffff);  /* 003fffff TIC_LIMIT */
    dd_emit(ctx, 1, 0x1fff);    /* 000fffff TSC_LIMIT */
    dd_emit(ctx, 1, 0);     /* 0000ffff CB_ADDR_INDEX */
    dd_emit(ctx, 1, 1);     /* 000007ff BLOCKDIM_X */
    dd_emit(ctx, 1, 1);     /* 000007ff BLOCKDIM_XMY */
    dd_emit(ctx, 1, 0);     /* 00000001 BLOCKDIM_XMY_OVERFLOW */
    dd_emit(ctx, 1, 1);     /* 0003ffff BLOCKDIM_XMYMZ */
    dd_emit(ctx, 1, 1);     /* 000007ff BLOCKDIM_Y */
    dd_emit(ctx, 1, 1);     /* 0000007f BLOCKDIM_Z */
    dd_emit(ctx, 1, 4);     /* 000000ff CP_REG_ALLOC_TEMP */
    dd_emit(ctx, 1, 1);     /* 00000001 BLOCKDIM_DIRTY */
    if (IS_NVA3F(device->chipset))
        dd_emit(ctx, 1, 0); /* 00000003 UNK03E8 */
    dd_emit(ctx, 1, 1);     /* 0000007f BLOCK_ALLOC_HALFWARPS */
    dd_emit(ctx, 1, 1);     /* 00000007 LOCAL_WARPS_NO_CLAMP */
    dd_emit(ctx, 1, 7);     /* 00000007 LOCAL_WARPS_LOG_ALLOC */
    dd_emit(ctx, 1, 1);     /* 00000007 STACK_WARPS_NO_CLAMP */
    dd_emit(ctx, 1, 7);     /* 00000007 STACK_WARPS_LOG_ALLOC */
    dd_emit(ctx, 1, 1);     /* 00001fff BLOCK_ALLOC_REGSLOTS_PACKED */
    dd_emit(ctx, 1, 1);     /* 00001fff BLOCK_ALLOC_REGSLOTS_STRIDED */
    dd_emit(ctx, 1, 1);     /* 000007ff BLOCK_ALLOC_THREADS */

    /* compat 2d state */
    if (device->chipset == 0x50) {
        dd_emit(ctx, 4, 0);     /* 0000ffff clip X, Y, W, H */

        dd_emit(ctx, 1, 1);     /* ffffffff chroma COLOR_FORMAT */

        dd_emit(ctx, 1, 1);     /* ffffffff pattern COLOR_FORMAT */
        dd_emit(ctx, 1, 0);     /* ffffffff pattern SHAPE */
        dd_emit(ctx, 1, 1);     /* ffffffff pattern PATTERN_SELECT */

        dd_emit(ctx, 1, 0xa);       /* ffffffff surf2d SRC_FORMAT */
        dd_emit(ctx, 1, 0);     /* ffffffff surf2d DMA_SRC */
        dd_emit(ctx, 1, 0);     /* 000000ff surf2d SRC_ADDRESS_HIGH */
        dd_emit(ctx, 1, 0);     /* ffffffff surf2d SRC_ADDRESS_LOW */
        dd_emit(ctx, 1, 0x40);      /* 0000ffff surf2d SRC_PITCH */
        dd_emit(ctx, 1, 0);     /* 0000000f surf2d SRC_TILE_MODE_Z */
        dd_emit(ctx, 1, 2);     /* 0000000f surf2d SRC_TILE_MODE_Y */
        dd_emit(ctx, 1, 0x100);     /* ffffffff surf2d SRC_HEIGHT */
        dd_emit(ctx, 1, 1);     /* 00000001 surf2d SRC_LINEAR */
        dd_emit(ctx, 1, 0x100);     /* ffffffff surf2d SRC_WIDTH */

        dd_emit(ctx, 1, 0);     /* 0000ffff gdirect CLIP_B_X */
        dd_emit(ctx, 1, 0);     /* 0000ffff gdirect CLIP_B_Y */
        dd_emit(ctx, 1, 0);     /* 0000ffff gdirect CLIP_C_X */
        dd_emit(ctx, 1, 0);     /* 0000ffff gdirect CLIP_C_Y */
        dd_emit(ctx, 1, 0);     /* 0000ffff gdirect CLIP_D_X */
        dd_emit(ctx, 1, 0);     /* 0000ffff gdirect CLIP_D_Y */
        dd_emit(ctx, 1, 1);     /* ffffffff gdirect COLOR_FORMAT */
        dd_emit(ctx, 1, 0);     /* ffffffff gdirect OPERATION */
        dd_emit(ctx, 1, 0);     /* 0000ffff gdirect POINT_X */
        dd_emit(ctx, 1, 0);     /* 0000ffff gdirect POINT_Y */

        dd_emit(ctx, 1, 0);     /* 0000ffff blit SRC_Y */
        dd_emit(ctx, 1, 0);     /* ffffffff blit OPERATION */

        dd_emit(ctx, 1, 0);     /* ffffffff ifc OPERATION */

        dd_emit(ctx, 1, 0);     /* ffffffff iifc INDEX_FORMAT */
        dd_emit(ctx, 1, 0);     /* ffffffff iifc LUT_OFFSET */
        dd_emit(ctx, 1, 4);     /* ffffffff iifc COLOR_FORMAT */
        dd_emit(ctx, 1, 0);     /* ffffffff iifc OPERATION */
    }

    /* m2mf state */
    dd_emit(ctx, 1, 0);     /* ffffffff m2mf LINE_COUNT */
    dd_emit(ctx, 1, 0);     /* ffffffff m2mf LINE_LENGTH_IN */
    dd_emit(ctx, 2, 0);     /* ffffffff m2mf OFFSET_IN, OFFSET_OUT */
    dd_emit(ctx, 1, 1);     /* ffffffff m2mf TILING_DEPTH_OUT */
    dd_emit(ctx, 1, 0x100);     /* ffffffff m2mf TILING_HEIGHT_OUT */
    dd_emit(ctx, 1, 0);     /* ffffffff m2mf TILING_POSITION_OUT_Z */
    dd_emit(ctx, 1, 1);     /* 00000001 m2mf LINEAR_OUT */
    dd_emit(ctx, 2, 0);     /* 0000ffff m2mf TILING_POSITION_OUT_X, Y */
    dd_emit(ctx, 1, 0x100);     /* ffffffff m2mf TILING_PITCH_OUT */
    dd_emit(ctx, 1, 1);     /* ffffffff m2mf TILING_DEPTH_IN */
    dd_emit(ctx, 1, 0x100);     /* ffffffff m2mf TILING_HEIGHT_IN */
    dd_emit(ctx, 1, 0);     /* ffffffff m2mf TILING_POSITION_IN_Z */
    dd_emit(ctx, 1, 1);     /* 00000001 m2mf LINEAR_IN */
    dd_emit(ctx, 2, 0);     /* 0000ffff m2mf TILING_POSITION_IN_X, Y */
    dd_emit(ctx, 1, 0x100);     /* ffffffff m2mf TILING_PITCH_IN */

    /* more compat 2d state */
    if (device->chipset == 0x50) {
        dd_emit(ctx, 1, 1);     /* ffffffff line COLOR_FORMAT */
        dd_emit(ctx, 1, 0);     /* ffffffff line OPERATION */

        dd_emit(ctx, 1, 1);     /* ffffffff triangle COLOR_FORMAT */
        dd_emit(ctx, 1, 0);     /* ffffffff triangle OPERATION */

        dd_emit(ctx, 1, 0);     /* 0000000f sifm TILE_MODE_Z */
        dd_emit(ctx, 1, 2);     /* 0000000f sifm TILE_MODE_Y */
        dd_emit(ctx, 1, 0);     /* 000000ff sifm FORMAT_FILTER */
        dd_emit(ctx, 1, 1);     /* 000000ff sifm FORMAT_ORIGIN */
        dd_emit(ctx, 1, 0);     /* 0000ffff sifm SRC_PITCH */
        dd_emit(ctx, 1, 1);     /* 00000001 sifm SRC_LINEAR */
        dd_emit(ctx, 1, 0);     /* 000000ff sifm SRC_OFFSET_HIGH */
        dd_emit(ctx, 1, 0);     /* ffffffff sifm SRC_OFFSET */
        dd_emit(ctx, 1, 0);     /* 0000ffff sifm SRC_HEIGHT */
        dd_emit(ctx, 1, 0);     /* 0000ffff sifm SRC_WIDTH */
        dd_emit(ctx, 1, 3);     /* ffffffff sifm COLOR_FORMAT */
        dd_emit(ctx, 1, 0);     /* ffffffff sifm OPERATION */

        dd_emit(ctx, 1, 0);     /* ffffffff sifc OPERATION */
    }

    /* tesla state */
    dd_emit(ctx, 1, 0);     /* 0000000f GP_TEXTURES_LOG2 */
    dd_emit(ctx, 1, 0);     /* 0000000f GP_SAMPLERS_LOG2 */
    dd_emit(ctx, 1, 0);     /* 000000ff */
    dd_emit(ctx, 1, 0);     /* ffffffff */
    dd_emit(ctx, 1, 4);     /* 000000ff UNK12B0_0 */
    dd_emit(ctx, 1, 0x70);      /* 000000ff UNK12B0_1 */
    dd_emit(ctx, 1, 0x80);      /* 000000ff UNK12B0_3 */
    dd_emit(ctx, 1, 0);     /* 000000ff UNK12B0_2 */
    dd_emit(ctx, 1, 0);     /* 0000000f FP_TEXTURES_LOG2 */
    dd_emit(ctx, 1, 0);     /* 0000000f FP_SAMPLERS_LOG2 */
    if (IS_NVA3F(device->chipset)) {
        dd_emit(ctx, 1, 0); /* ffffffff */
        dd_emit(ctx, 1, 0); /* 0000007f MULTISAMPLE_SAMPLES_LOG2 */
    } else {
        dd_emit(ctx, 1, 0); /* 0000000f MULTISAMPLE_SAMPLES_LOG2 */
    }
    dd_emit(ctx, 1, 0xc);       /* 000000ff SEMANTIC_COLOR.BFC0_ID */
    if (device->chipset != 0x50)
        dd_emit(ctx, 1, 0); /* 00000001 SEMANTIC_COLOR.CLMP_EN */
    dd_emit(ctx, 1, 8);     /* 000000ff SEMANTIC_COLOR.COLR_NR */
    dd_emit(ctx, 1, 0x14);      /* 000000ff SEMANTIC_COLOR.FFC0_ID */
    if (device->chipset == 0x50) {
        dd_emit(ctx, 1, 0); /* 000000ff SEMANTIC_LAYER */
        dd_emit(ctx, 1, 0); /* 00000001 */
    } else {
        dd_emit(ctx, 1, 0); /* 00000001 SEMANTIC_PTSZ.ENABLE */
        dd_emit(ctx, 1, 0x29);  /* 000000ff SEMANTIC_PTSZ.PTSZ_ID */
        dd_emit(ctx, 1, 0x27);  /* 000000ff SEMANTIC_PRIM */
        dd_emit(ctx, 1, 0x26);  /* 000000ff SEMANTIC_LAYER */
        dd_emit(ctx, 1, 8); /* 0000000f SMENATIC_CLIP.CLIP_HIGH */
        dd_emit(ctx, 1, 4); /* 000000ff SEMANTIC_CLIP.CLIP_LO */
        dd_emit(ctx, 1, 0x27);  /* 000000ff UNK0FD4 */
        dd_emit(ctx, 1, 0); /* 00000001 UNK1900 */
    }
    dd_emit(ctx, 1, 0);     /* 00000007 RT_CONTROL_MAP0 */
    dd_emit(ctx, 1, 1);     /* 00000007 RT_CONTROL_MAP1 */
    dd_emit(ctx, 1, 2);     /* 00000007 RT_CONTROL_MAP2 */
    dd_emit(ctx, 1, 3);     /* 00000007 RT_CONTROL_MAP3 */
    dd_emit(ctx, 1, 4);     /* 00000007 RT_CONTROL_MAP4 */
    dd_emit(ctx, 1, 5);     /* 00000007 RT_CONTROL_MAP5 */
    dd_emit(ctx, 1, 6);     /* 00000007 RT_CONTROL_MAP6 */
    dd_emit(ctx, 1, 7);     /* 00000007 RT_CONTROL_MAP7 */
    dd_emit(ctx, 1, 1);     /* 0000000f RT_CONTROL_COUNT */
    dd_emit(ctx, 8, 0);     /* 00000001 RT_HORIZ_UNK */
    dd_emit(ctx, 8, 0);     /* ffffffff RT_ADDRESS_LOW */
    dd_emit(ctx, 1, 0xcf);      /* 000000ff RT_FORMAT */
    dd_emit(ctx, 7, 0);     /* 000000ff RT_FORMAT */
    if (device->chipset != 0x50)
        dd_emit(ctx, 3, 0); /* 1, 1, 1 */
    else
        dd_emit(ctx, 2, 0); /* 1, 1 */
    dd_emit(ctx, 1, 0);     /* ffffffff GP_ENABLE */
    dd_emit(ctx, 1, 0x80);      /* 0000ffff GP_VERTEX_OUTPUT_COUNT*/
    dd_emit(ctx, 1, 4);     /* 000000ff GP_REG_ALLOC_RESULT */
    dd_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    if (IS_NVA3F(device->chipset)) {
        dd_emit(ctx, 1, 3); /* 00000003 */
        dd_emit(ctx, 1, 0); /* 00000001 UNK1418. Alone. */
    }
    if (device->chipset != 0x50)
        dd_emit(ctx, 1, 3); /* 00000003 UNK15AC */
    dd_emit(ctx, 1, 1);     /* ffffffff RASTERIZE_ENABLE */
    dd_emit(ctx, 1, 0);     /* 00000001 FP_CONTROL.EXPORTS_Z */
    if (device->chipset != 0x50)
        dd_emit(ctx, 1, 0); /* 00000001 FP_CONTROL.MULTIPLE_RESULTS */
    dd_emit(ctx, 1, 0x12);      /* 000000ff FP_INTERPOLANT_CTRL.COUNT */
    dd_emit(ctx, 1, 0x10);      /* 000000ff FP_INTERPOLANT_CTRL.COUNT_NONFLAT */
    dd_emit(ctx, 1, 0xc);       /* 000000ff FP_INTERPOLANT_CTRL.OFFSET */
    dd_emit(ctx, 1, 1);     /* 00000001 FP_INTERPOLANT_CTRL.UMASK.W */
    dd_emit(ctx, 1, 0);     /* 00000001 FP_INTERPOLANT_CTRL.UMASK.X */
    dd_emit(ctx, 1, 0);     /* 00000001 FP_INTERPOLANT_CTRL.UMASK.Y */
    dd_emit(ctx, 1, 0);     /* 00000001 FP_INTERPOLANT_CTRL.UMASK.Z */
    dd_emit(ctx, 1, 4);     /* 000000ff FP_RESULT_COUNT */
    dd_emit(ctx, 1, 2);     /* ffffffff REG_MODE */
    dd_emit(ctx, 1, 4);     /* 000000ff FP_REG_ALLOC_TEMP */
    if (device->chipset >= 0xa0)
        dd_emit(ctx, 1, 0); /* ffffffff */
    dd_emit(ctx, 1, 0);     /* 00000001 GP_BUILTIN_RESULT_EN.LAYER_IDX */
    dd_emit(ctx, 1, 0);     /* ffffffff STRMOUT_ENABLE */
    dd_emit(ctx, 1, 0x3fffff);  /* 003fffff TIC_LIMIT */
    dd_emit(ctx, 1, 0x1fff);    /* 000fffff TSC_LIMIT */
    dd_emit(ctx, 1, 0);     /* 00000001 VERTEX_TWO_SIDE_ENABLE*/
    if (device->chipset != 0x50)
        dd_emit(ctx, 8, 0); /* 00000001 */
    if (device->chipset >= 0xa0) {
        dd_emit(ctx, 1, 1); /* 00000007 VTX_ATTR_DEFINE.COMP */
        dd_emit(ctx, 1, 1); /* 00000007 VTX_ATTR_DEFINE.SIZE */
        dd_emit(ctx, 1, 2); /* 00000007 VTX_ATTR_DEFINE.TYPE */
        dd_emit(ctx, 1, 0); /* 000000ff VTX_ATTR_DEFINE.ATTR */
    }
    dd_emit(ctx, 1, 4);     /* 0000007f VP_RESULT_MAP_SIZE */
    dd_emit(ctx, 1, 0x14);      /* 0000001f ZETA_FORMAT */
    dd_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    dd_emit(ctx, 1, 0);     /* 0000000f VP_TEXTURES_LOG2 */
    dd_emit(ctx, 1, 0);     /* 0000000f VP_SAMPLERS_LOG2 */
    if (IS_NVA3F(device->chipset))
        dd_emit(ctx, 1, 0); /* 00000001 */
    dd_emit(ctx, 1, 2);     /* 00000003 POLYGON_MODE_BACK */
    if (device->chipset >= 0xa0)
        dd_emit(ctx, 1, 0); /* 00000003 VTX_ATTR_DEFINE.SIZE - 1 */
    dd_emit(ctx, 1, 0);     /* 0000ffff CB_ADDR_INDEX */
    if (device->chipset >= 0xa0)
        dd_emit(ctx, 1, 0); /* 00000003 */
    dd_emit(ctx, 1, 0);     /* 00000001 CULL_FACE_ENABLE */
    dd_emit(ctx, 1, 1);     /* 00000003 CULL_FACE */
    dd_emit(ctx, 1, 0);     /* 00000001 FRONT_FACE */
    dd_emit(ctx, 1, 2);     /* 00000003 POLYGON_MODE_FRONT */
    dd_emit(ctx, 1, 0x1000);    /* 00007fff UNK141C */
    if (device->chipset != 0x50) {
        dd_emit(ctx, 1, 0xe00);     /* 7fff */
        dd_emit(ctx, 1, 0x1000);    /* 7fff */
        dd_emit(ctx, 1, 0x1e00);    /* 7fff */
    }
    dd_emit(ctx, 1, 0);     /* 00000001 BEGIN_END_ACTIVE */
    dd_emit(ctx, 1, 1);     /* 00000001 POLYGON_MODE_??? */
    dd_emit(ctx, 1, 1);     /* 000000ff GP_REG_ALLOC_TEMP / 4 rounded up */
    dd_emit(ctx, 1, 1);     /* 000000ff FP_REG_ALLOC_TEMP... without /4? */
    dd_emit(ctx, 1, 1);     /* 000000ff VP_REG_ALLOC_TEMP / 4 rounded up */
    dd_emit(ctx, 1, 1);     /* 00000001 */
    dd_emit(ctx, 1, 0);     /* 00000001 */
    dd_emit(ctx, 1, 0);     /* 00000001 VTX_ATTR_MASK_UNK0 nonempty */
    dd_emit(ctx, 1, 0);     /* 00000001 VTX_ATTR_MASK_UNK1 nonempty */
    dd_emit(ctx, 1, 0x200);     /* 0003ffff GP_VERTEX_OUTPUT_COUNT*GP_REG_ALLOC_RESULT */
    if (IS_NVA3F(device->chipset))
        dd_emit(ctx, 1, 0x200);
    dd_emit(ctx, 1, 0);     /* 00000001 */
    if (device->chipset < 0xa0) {
        dd_emit(ctx, 1, 1); /* 00000001 */
        dd_emit(ctx, 1, 0x70);  /* 000000ff */
        dd_emit(ctx, 1, 0x80);  /* 000000ff */
        dd_emit(ctx, 1, 0); /* 000000ff */
        dd_emit(ctx, 1, 0); /* 00000001 */
        dd_emit(ctx, 1, 1); /* 00000001 */
        dd_emit(ctx, 1, 0x70);  /* 000000ff */
        dd_emit(ctx, 1, 0x80);  /* 000000ff */
        dd_emit(ctx, 1, 0); /* 000000ff */
    } else {
        dd_emit(ctx, 1, 1); /* 00000001 */
        dd_emit(ctx, 1, 0xf0);  /* 000000ff */
        dd_emit(ctx, 1, 0xff);  /* 000000ff */
        dd_emit(ctx, 1, 0); /* 000000ff */
        dd_emit(ctx, 1, 0); /* 00000001 */
        dd_emit(ctx, 1, 1); /* 00000001 */
        dd_emit(ctx, 1, 0xf0);  /* 000000ff */
        dd_emit(ctx, 1, 0xff);  /* 000000ff */
        dd_emit(ctx, 1, 0); /* 000000ff */
        dd_emit(ctx, 1, 9); /* 0000003f UNK114C.COMP,SIZE */
    }

    /* eng2d state */
    dd_emit(ctx, 1, 0);     /* 00000001 eng2d COLOR_KEY_ENABLE */
    dd_emit(ctx, 1, 0);     /* 00000007 eng2d COLOR_KEY_FORMAT */
    dd_emit(ctx, 1, 1);     /* ffffffff eng2d DST_DEPTH */
    dd_emit(ctx, 1, 0xcf);      /* 000000ff eng2d DST_FORMAT */
    dd_emit(ctx, 1, 0);     /* ffffffff eng2d DST_LAYER */
    dd_emit(ctx, 1, 1);     /* 00000001 eng2d DST_LINEAR */
    dd_emit(ctx, 1, 0);     /* 00000007 eng2d PATTERN_COLOR_FORMAT */
    dd_emit(ctx, 1, 0);     /* 00000007 eng2d OPERATION */
    dd_emit(ctx, 1, 0);     /* 00000003 eng2d PATTERN_SELECT */
    dd_emit(ctx, 1, 0xcf);      /* 000000ff eng2d SIFC_FORMAT */
    dd_emit(ctx, 1, 0);     /* 00000001 eng2d SIFC_BITMAP_ENABLE */
    dd_emit(ctx, 1, 2);     /* 00000003 eng2d SIFC_BITMAP_UNK808 */
    dd_emit(ctx, 1, 0);     /* ffffffff eng2d BLIT_DU_DX_FRACT */
    dd_emit(ctx, 1, 1);     /* ffffffff eng2d BLIT_DU_DX_INT */
    dd_emit(ctx, 1, 0);     /* ffffffff eng2d BLIT_DV_DY_FRACT */
    dd_emit(ctx, 1, 1);     /* ffffffff eng2d BLIT_DV_DY_INT */
    dd_emit(ctx, 1, 0);     /* 00000001 eng2d BLIT_CONTROL_FILTER */
    dd_emit(ctx, 1, 0xcf);      /* 000000ff eng2d DRAW_COLOR_FORMAT */
    dd_emit(ctx, 1, 0xcf);      /* 000000ff eng2d SRC_FORMAT */
    dd_emit(ctx, 1, 1);     /* 00000001 eng2d SRC_LINEAR #2 */

    num = ctx->ctxvals_pos - base;
    ctx->ctxvals_pos = base;
    if (IS_NVA3F(device->chipset))
        cp_ctx(ctx, 0x404800, num);
    else
        cp_ctx(ctx, 0x405400, num);
}

/*
 * 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 void
xf_emit(struct nouveau_grctx *ctx, int num, u32 val) {
    int i;
    if (val && ctx->mode == NOUVEAU_GRCTX_VALS)
        for (i = 0; i < num; i++)
            nv_wo32(ctx->data, 4 * (ctx->ctxvals_pos + (i << 3)), val);
    ctx->ctxvals_pos += num << 3;
}

/* Gene declarations... */

static void nv50_graph_construct_gene_dispatch(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_m2mf(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_ccache(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk10xx(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk14xx(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_zcull(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_clipid(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk24xx(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_vfetch(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_eng2d(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_csched(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk1cxx(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_strmout(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_unk34xx(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_ropm1(struct nouveau_grctx *ctx);
static void nv50_graph_construct_gene_ropm2(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 nouveau_device *device = ctx->device;
    int i;
    int offset;
    int size = 0;
    u32 units = nv_rd32 (ctx->device, 0x1540);

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

    if (device->chipset < 0xa0) {
        /* Strand 0 */
        ctx->ctxvals_pos = offset;
        nv50_graph_construct_gene_dispatch(ctx);
        nv50_graph_construct_gene_m2mf(ctx);
        nv50_graph_construct_gene_unk24xx(ctx);
        nv50_graph_construct_gene_clipid(ctx);
        nv50_graph_construct_gene_zcull(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_vfetch(ctx);
        nv50_graph_construct_gene_eng2d(ctx);
        nv50_graph_construct_gene_csched(ctx);
        nv50_graph_construct_gene_ropm1(ctx);
        nv50_graph_construct_gene_ropm2(ctx);
        if ((ctx->ctxvals_pos-offset)/8 > size)
            size = (ctx->ctxvals_pos-offset)/8;

        /* Strand 2 */
        ctx->ctxvals_pos = offset + 0x2;
        nv50_graph_construct_gene_ccache(ctx);
        nv50_graph_construct_gene_unk1cxx(ctx);
        nv50_graph_construct_gene_strmout(ctx);
        nv50_graph_construct_gene_unk14xx(ctx);
        nv50_graph_construct_gene_unk10xx(ctx);
        nv50_graph_construct_gene_unk34xx(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;
        nv50_graph_construct_gene_dispatch(ctx);
        nv50_graph_construct_gene_m2mf(ctx);
        nv50_graph_construct_gene_unk34xx(ctx);
        nv50_graph_construct_gene_csched(ctx);
        nv50_graph_construct_gene_unk1cxx(ctx);
        nv50_graph_construct_gene_strmout(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_unk10xx(ctx);
        if ((ctx->ctxvals_pos-offset)/8 > size)
            size = (ctx->ctxvals_pos-offset)/8;

        /* Strand 2 */
        ctx->ctxvals_pos = offset + 2;
        if (device->chipset == 0xa0)
            nv50_graph_construct_gene_unk14xx(ctx);
        nv50_graph_construct_gene_unk24xx(ctx);
        if ((ctx->ctxvals_pos-offset)/8 > size)
            size = (ctx->ctxvals_pos-offset)/8;

        /* Strand 3 */
        ctx->ctxvals_pos = offset + 3;
        nv50_graph_construct_gene_vfetch(ctx);
        if ((ctx->ctxvals_pos-offset)/8 > size)
            size = (ctx->ctxvals_pos-offset)/8;

        /* Strand 4 */
        ctx->ctxvals_pos = offset + 4;
        nv50_graph_construct_gene_ccache(ctx);
        if ((ctx->ctxvals_pos-offset)/8 > size)
            size = (ctx->ctxvals_pos-offset)/8;

        /* Strand 5 */
        ctx->ctxvals_pos = offset + 5;
        nv50_graph_construct_gene_ropm2(ctx);
        nv50_graph_construct_gene_ropm1(ctx);
        /* per-ROP context */
        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_zcull(ctx);
        nv50_graph_construct_gene_clipid(ctx);
        nv50_graph_construct_gene_eng2d(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 (device->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_unk14xx(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_dispatch(struct nouveau_grctx *ctx)
{
    /* start of strand 0 */
    struct nouveau_device *device = ctx->device;
    /* SEEK */
    if (device->chipset == 0x50)
        xf_emit(ctx, 5, 0);
    else if (!IS_NVA3F(device->chipset))
        xf_emit(ctx, 6, 0);
    else
        xf_emit(ctx, 4, 0);
    /* SEEK */
    /* the PGRAPH's internal FIFO */
    if (device->chipset == 0x50)
        xf_emit(ctx, 8*3, 0);
    else
        xf_emit(ctx, 0x100*3, 0);
    /* and another bonus slot?!? */
    xf_emit(ctx, 3, 0);
    /* and YET ANOTHER bonus slot? */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 3, 0);
    /* SEEK */
    /* CTX_SWITCH: caches of gr objects bound to subchannels. 8 values, last used index */
    xf_emit(ctx, 9, 0);
    /* SEEK */
    xf_emit(ctx, 9, 0);
    /* SEEK */
    xf_emit(ctx, 9, 0);
    /* SEEK */
    xf_emit(ctx, 9, 0);
    /* SEEK */
    if (device->chipset < 0x90)
        xf_emit(ctx, 4, 0);
    /* SEEK */
    xf_emit(ctx, 2, 0);
    /* SEEK */
    xf_emit(ctx, 6*2, 0);
    xf_emit(ctx, 2, 0);
    /* SEEK */
    xf_emit(ctx, 2, 0);
    /* SEEK */
    xf_emit(ctx, 6*2, 0);
    xf_emit(ctx, 2, 0);
    /* SEEK */
    if (device->chipset == 0x50)
        xf_emit(ctx, 0x1c, 0);
    else if (device->chipset < 0xa0)
        xf_emit(ctx, 0x1e, 0);
    else
        xf_emit(ctx, 0x22, 0);
    /* SEEK */
    xf_emit(ctx, 0x15, 0);
}

static void
nv50_graph_construct_gene_m2mf(struct nouveau_grctx *ctx)
{
    /* Strand 0, right after dispatch */
    struct nouveau_device *device = ctx->device;
    int smallm2mf = 0;
    if (device->chipset < 0x92 || device->chipset == 0x98)
        smallm2mf = 1;
    /* SEEK */
    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 */
    /* SEEK */
    if (smallm2mf)
        xf_emit(ctx, 0x40, 0);  /* 20 * ffffffff, 3ffff */
    else
        xf_emit(ctx, 0x100, 0); /* 80 * ffffffff, 3ffff */
    xf_emit(ctx, 4, 0);     /* 1f/7f, 0, 1f/7f, 0 [1f for smallm2mf, 7f otherwise] */
    /* SEEK */
    if (smallm2mf)
        xf_emit(ctx, 0x400, 0); /* ffffffff */
    else
        xf_emit(ctx, 0x800, 0); /* ffffffff */
    xf_emit(ctx, 4, 0);     /* ff/1ff, 0, 0, 0 [ff for smallm2mf, 1ff otherwise] */
    /* SEEK */
    xf_emit(ctx, 0x40, 0);      /* 20 * bits ffffffff, 3ffff */
    xf_emit(ctx, 0x6, 0);       /* 1f, 0, 1f, 0, 1f, 0 */
}

static void
nv50_graph_construct_gene_ccache(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    xf_emit(ctx, 2, 0);     /* RO */
    xf_emit(ctx, 0x800, 0);     /* ffffffff */
    switch (device->chipset) {
    case 0x50:
    case 0x92:
    case 0xa0:
        xf_emit(ctx, 0x2b, 0);
        break;
    case 0x84:
        xf_emit(ctx, 0x29, 0);
        break;
    case 0x94:
    case 0x96:
    case 0xa3:
        xf_emit(ctx, 0x27, 0);
        break;
    case 0x86:
    case 0x98:
    case 0xa5:
    case 0xa8:
    case 0xaa:
    case 0xac:
    case 0xaf:
        xf_emit(ctx, 0x25, 0);
        break;
    }
    /* CB bindings, 0x80 of them. first word is address >> 8, second is
     * size >> 4 | valid << 24 */
    xf_emit(ctx, 0x100, 0);     /* ffffffff CB_DEF */
    xf_emit(ctx, 1, 0);     /* 0000007f CB_ADDR_BUFFER */
    xf_emit(ctx, 1, 0);     /* 0 */
    xf_emit(ctx, 0x30, 0);      /* ff SET_PROGRAM_CB */
    xf_emit(ctx, 1, 0);     /* 3f last SET_PROGRAM_CB */
    xf_emit(ctx, 4, 0);     /* RO */
    xf_emit(ctx, 0x100, 0);     /* ffffffff */
    xf_emit(ctx, 8, 0);     /* 1f, 0, 0, ... */
    xf_emit(ctx, 8, 0);     /* ffffffff */
    xf_emit(ctx, 4, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 3 */
    xf_emit(ctx, 1, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_CODE_CB */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_TIC */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_TSC */
    xf_emit(ctx, 1, 0);     /* 00000001 LINKED_TSC */
    xf_emit(ctx, 1, 0);     /* 000000ff TIC_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff TIC_ADDRESS_LOW */
    xf_emit(ctx, 1, 0x3fffff);  /* 003fffff TIC_LIMIT */
    xf_emit(ctx, 1, 0);     /* 000000ff TSC_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff TSC_ADDRESS_LOW */
    xf_emit(ctx, 1, 0x1fff);    /* 000fffff TSC_LIMIT */
    xf_emit(ctx, 1, 0);     /* 000000ff VP_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff VP_ADDRESS_LOW */
    xf_emit(ctx, 1, 0);     /* 00ffffff VP_START_ID */
    xf_emit(ctx, 1, 0);     /* 000000ff CB_DEF_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff CB_DEF_ADDRESS_LOW */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0);     /* 000000ff GP_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff GP_ADDRESS_LOW */
    xf_emit(ctx, 1, 0);     /* 00ffffff GP_START_ID */
    xf_emit(ctx, 1, 0);     /* 000000ff FP_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff FP_ADDRESS_LOW */
    xf_emit(ctx, 1, 0);     /* 00ffffff FP_START_ID */
}

static void
nv50_graph_construct_gene_unk10xx(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int i;
    /* end of area 2 on pre-NVA0, area 1 on NVAx */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 4);     /* 0000007f VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0x80);      /* 0000ffff GP_VERTEX_OUTPUT_COUNT */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_REG_ALLOC_RESULT */
    xf_emit(ctx, 1, 0x80c14);   /* 01ffffff SEMANTIC_COLOR */
    xf_emit(ctx, 1, 0);     /* 00000001 VERTEX_TWO_SIDE_ENABLE */
    if (device->chipset == 0x50)
        xf_emit(ctx, 1, 0x3ff);
    else
        xf_emit(ctx, 1, 0x7ff); /* 000007ff */
    xf_emit(ctx, 1, 0);     /* 111/113 */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    for (i = 0; i < 8; i++) {
        switch (device->chipset) {
        case 0x50:
        case 0x86:
        case 0x98:
        case 0xaa:
        case 0xac:
            xf_emit(ctx, 0xa0, 0);  /* ffffffff */
            break;
        case 0x84:
        case 0x92:
        case 0x94:
        case 0x96:
            xf_emit(ctx, 0x120, 0);
            break;
        case 0xa5:
        case 0xa8:
            xf_emit(ctx, 0x100, 0); /* ffffffff */
            break;
        case 0xa0:
        case 0xa3:
        case 0xaf:
            xf_emit(ctx, 0x400, 0); /* ffffffff */
            break;
        }
        xf_emit(ctx, 4, 0); /* 3f, 0, 0, 0 */
        xf_emit(ctx, 4, 0); /* ffffffff */
    }
    xf_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 4);     /* 0000007f VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0x80);      /* 0000ffff GP_VERTEX_OUTPUT_COUNT */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_REG_ALLOC_TEMP */
    xf_emit(ctx, 1, 1);     /* 00000001 RASTERIZE_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1900 */
    xf_emit(ctx, 1, 0x27);      /* 000000ff UNK0FD4 */
    xf_emit(ctx, 1, 0);     /* 0001ffff GP_BUILTIN_RESULT_EN */
    xf_emit(ctx, 1, 0x26);      /* 000000ff SEMANTIC_LAYER */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
}

static void
nv50_graph_construct_gene_unk34xx(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    /* end of area 2 on pre-NVA0, area 1 on NVAx */
    xf_emit(ctx, 1, 0);     /* 00000001 VIEWPORT_CLIP_RECTS_EN */
    xf_emit(ctx, 1, 0);     /* 00000003 VIEWPORT_CLIP_MODE */
    xf_emit(ctx, 0x10, 0x04000000); /* 07ffffff VIEWPORT_CLIP_HORIZ*8, VIEWPORT_CLIP_VERT*8 */
    xf_emit(ctx, 1, 0);     /* 00000001 POLYGON_STIPPLE_ENABLE */
    xf_emit(ctx, 0x20, 0);      /* ffffffff POLYGON_STIPPLE */
    xf_emit(ctx, 2, 0);     /* 00007fff WINDOW_OFFSET_XY */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 1, 0x04e3bfdf);    /* ffffffff UNK0D64 */
    xf_emit(ctx, 1, 0x04e3bfdf);    /* ffffffff UNK0DF4 */
    xf_emit(ctx, 1, 0);     /* 00000003 WINDOW_ORIGIN */
    xf_emit(ctx, 1, 0);     /* 00000007 */
    xf_emit(ctx, 1, 0x1fe21);   /* 0001ffff tesla UNK0FAC */
    if (device->chipset >= 0xa0)
        xf_emit(ctx, 1, 0x0fac6881);
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 1, 1);
        xf_emit(ctx, 3, 0);
    }
}

static void
nv50_graph_construct_gene_unk14xx(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    /* middle of area 2 on pre-NVA0, beginning of area 2 on NVA0, area 7 on >NVA0 */
    if (device->chipset != 0x50) {
        xf_emit(ctx, 5, 0);     /* ffffffff */
        xf_emit(ctx, 1, 0x80c14);   /* 01ffffff SEMANTIC_COLOR */
        xf_emit(ctx, 1, 0);     /* 00000001 */
        xf_emit(ctx, 1, 0);     /* 000003ff */
        xf_emit(ctx, 1, 0x804);     /* 00000fff SEMANTIC_CLIP */
        xf_emit(ctx, 1, 0);     /* 00000001 */
        xf_emit(ctx, 2, 4);     /* 7f, ff */
        xf_emit(ctx, 1, 0x8100c12); /* 1fffffff FP_INTERPOLANT_CTRL */
    }
    xf_emit(ctx, 1, 0);         /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 4);         /* 0000007f VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 4);         /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);         /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0x10);          /* 7f/ff VIEW_VOLUME_CLIP_CTRL */
    xf_emit(ctx, 1, 0);         /* 000000ff VP_CLIP_DISTANCE_ENABLE */
    if (device->chipset != 0x50)
        xf_emit(ctx, 1, 0);     /* 3ff */
    xf_emit(ctx, 1, 0);         /* 000000ff tesla UNK1940 */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK0D7C */
    xf_emit(ctx, 1, 0x804);         /* 00000fff SEMANTIC_CLIP */
    xf_emit(ctx, 1, 1);         /* 00000001 VIEWPORT_TRANSFORM_EN */
    xf_emit(ctx, 1, 0x1a);          /* 0000001f POLYGON_MODE */
    if (device->chipset != 0x50)
        xf_emit(ctx, 1, 0x7f);      /* 000000ff tesla UNK0FFC */
    xf_emit(ctx, 1, 0);         /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 1);         /* 00000001 SHADE_MODEL */
    xf_emit(ctx, 1, 0x80c14);       /* 01ffffff SEMANTIC_COLOR */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK1900 */
    xf_emit(ctx, 1, 0x8100c12);     /* 1fffffff FP_INTERPOLANT_CTRL */
    xf_emit(ctx, 1, 4);         /* 0000007f VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 4);         /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);         /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0x10);          /* 7f/ff VIEW_VOLUME_CLIP_CTRL */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK0D7C */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK0F8C */
    xf_emit(ctx, 1, 0);         /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 1);         /* 00000001 VIEWPORT_TRANSFORM_EN */
    xf_emit(ctx, 1, 0x8100c12);     /* 1fffffff FP_INTERPOLANT_CTRL */
    xf_emit(ctx, 4, 0);         /* ffffffff NOPERSPECTIVE_BITMAP */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK1900 */
    xf_emit(ctx, 1, 0);         /* 0000000f */
    if (device->chipset == 0x50)
        xf_emit(ctx, 1, 0x3ff);     /* 000003ff tesla UNK0D68 */
    else
        xf_emit(ctx, 1, 0x7ff);     /* 000007ff tesla UNK0D68 */
    xf_emit(ctx, 1, 0x80c14);       /* 01ffffff SEMANTIC_COLOR */
    xf_emit(ctx, 1, 0);         /* 00000001 VERTEX_TWO_SIDE_ENABLE */
    xf_emit(ctx, 0x30, 0);          /* ffffffff VIEWPORT_SCALE: X0, Y0, Z0, X1, Y1, ... */
    xf_emit(ctx, 3, 0);         /* f, 0, 0 */
    xf_emit(ctx, 3, 0);         /* ffffffff last VIEWPORT_SCALE? */
    xf_emit(ctx, 1, 0);         /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 1);         /* 00000001 VIEWPORT_TRANSFORM_EN */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK1900 */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK1924 */
    xf_emit(ctx, 1, 0x10);          /* 000000ff VIEW_VOLUME_CLIP_CTRL */
    xf_emit(ctx, 1, 0);         /* 00000001 */
    xf_emit(ctx, 0x30, 0);          /* ffffffff VIEWPORT_TRANSLATE */
    xf_emit(ctx, 3, 0);         /* f, 0, 0 */
    xf_emit(ctx, 3, 0);         /* ffffffff */
    xf_emit(ctx, 1, 0);         /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 2, 0x88);          /* 000001ff tesla UNK19D8 */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK1924 */
    xf_emit(ctx, 1, 0);         /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 4);         /* 0000000f CULL_MODE */
    xf_emit(ctx, 2, 0);         /* 07ffffff SCREEN_SCISSOR */
    xf_emit(ctx, 2, 0);         /* 00007fff WINDOW_OFFSET_XY */
    xf_emit(ctx, 1, 0);         /* 00000003 WINDOW_ORIGIN */
    xf_emit(ctx, 0x10, 0);          /* 00000001 SCISSOR_ENABLE */
    xf_emit(ctx, 1, 0);         /* 0001ffff GP_BUILTIN_RESULT_EN */
    xf_emit(ctx, 1, 0x26);          /* 000000ff SEMANTIC_LAYER */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK1900 */
    xf_emit(ctx, 1, 0);         /* 0000000f */
    xf_emit(ctx, 1, 0x3f800000);        /* ffffffff LINE_WIDTH */
    xf_emit(ctx, 1, 0);         /* 00000001 LINE_STIPPLE_ENABLE */
    xf_emit(ctx, 1, 0);         /* 00000001 LINE_SMOOTH_ENABLE */
    xf_emit(ctx, 1, 0);         /* 00000007 MULTISAMPLE_SAMPLES_LOG2 */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 0);     /* 00000001 */
    xf_emit(ctx, 1, 0x1a);          /* 0000001f POLYGON_MODE */
    xf_emit(ctx, 1, 0x10);          /* 000000ff VIEW_VOLUME_CLIP_CTRL */
    if (device->chipset != 0x50) {
        xf_emit(ctx, 1, 0);     /* ffffffff */
        xf_emit(ctx, 1, 0);     /* 00000001 */
        xf_emit(ctx, 1, 0);     /* 000003ff */
    }
    xf_emit(ctx, 0x20, 0);          /* 10xbits ffffffff, 3fffff. SCISSOR_* */
    xf_emit(ctx, 1, 0);         /* f */
    xf_emit(ctx, 1, 0);         /* 0? */
    xf_emit(ctx, 1, 0);         /* ffffffff */
    xf_emit(ctx, 1, 0);         /* 003fffff */
    xf_emit(ctx, 1, 0);         /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 0x52);          /* 000001ff SEMANTIC_PTSZ */
    xf_emit(ctx, 1, 0);         /* 0001ffff GP_BUILTIN_RESULT_EN */
    xf_emit(ctx, 1, 0x26);          /* 000000ff SEMANTIC_LAYER */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK1900 */
    xf_emit(ctx, 1, 4);         /* 0000007f VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 4);         /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);         /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0x1a);          /* 0000001f POLYGON_MODE */
    xf_emit(ctx, 1, 0);         /* 00000001 LINE_SMOOTH_ENABLE */
    xf_emit(ctx, 1, 0);         /* 00000001 LINE_STIPPLE_ENABLE */
    xf_emit(ctx, 1, 0x00ffff00);        /* 00ffffff LINE_STIPPLE_PATTERN */
    xf_emit(ctx, 1, 0);         /* 0000000f */
}

static void
nv50_graph_construct_gene_zcull(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    /* end of strand 0 on pre-NVA0, beginning of strand 6 on NVAx */
    /* SEEK */
    xf_emit(ctx, 1, 0x3f);      /* 0000003f UNK1590 */
    xf_emit(ctx, 1, 0);     /* 00000001 ALPHA_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000007 MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_BACK_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_FUNC_REF */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_MASK */
    xf_emit(ctx, 3, 0);     /* 00000007 STENCIL_BACK_OP_FAIL, ZFAIL, ZPASS */
    xf_emit(ctx, 1, 2);     /* 00000003 tesla UNK143C */
    xf_emit(ctx, 2, 0x04000000);    /* 07ffffff tesla UNK0D6C */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 1, 0);     /* 00000001 CLIPID_ENABLE */
    xf_emit(ctx, 2, 0);     /* ffffffff DEPTH_BOUNDS */
    xf_emit(ctx, 1, 0);     /* 00000001 */
    xf_emit(ctx, 1, 0);     /* 00000007 DEPTH_TEST_FUNC */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    xf_emit(ctx, 1, 4);     /* 0000000f CULL_MODE */
    xf_emit(ctx, 1, 0);     /* 0000ffff */
    xf_emit(ctx, 1, 0);     /* 00000001 UNK0FB0 */
    xf_emit(ctx, 1, 0);     /* 00000001 POLYGON_STIPPLE_ENABLE */
    xf_emit(ctx, 1, 4);     /* 00000007 FP_CONTROL */
    xf_emit(ctx, 1, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 0001ffff GP_BUILTIN_RESULT_EN */
    xf_emit(ctx, 1, 0);     /* 000000ff CLEAR_STENCIL */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_FRONT_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_FUNC_REF */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_MASK */
    xf_emit(ctx, 3, 0);     /* 00000007 STENCIL_FRONT_OP_FAIL, ZFAIL, ZPASS */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_BACK_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffffffff CLEAR_DEPTH */
    xf_emit(ctx, 1, 0);     /* 00000007 */
    if (device->chipset != 0x50)
        xf_emit(ctx, 1, 0); /* 00000003 tesla UNK1108 */
    xf_emit(ctx, 1, 0);     /* 00000001 SAMPLECNT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    xf_emit(ctx, 1, 0x1001);    /* 00001fff ZETA_ARRAY_MODE */
    /* SEEK */
    xf_emit(ctx, 4, 0xffff);    /* 0000ffff MSAA_MASK */
    xf_emit(ctx, 0x10, 0);      /* 00000001 SCISSOR_ENABLE */
    xf_emit(ctx, 0x10, 0);      /* ffffffff DEPTH_RANGE_NEAR */
    xf_emit(ctx, 0x10, 0x3f800000); /* ffffffff DEPTH_RANGE_FAR */
    xf_emit(ctx, 1, 0x10);      /* 7f/ff/3ff VIEW_VOLUME_CLIP_CTRL */
    xf_emit(ctx, 1, 0);     /* 00000001 VIEWPORT_CLIP_RECTS_EN */
    xf_emit(ctx, 1, 3);     /* 00000003 FP_CTRL_UNK196C */
    xf_emit(ctx, 1, 0);     /* 00000003 tesla UNK1968 */
    if (device->chipset != 0x50)
        xf_emit(ctx, 1, 0); /* 0fffffff tesla UNK1104 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK151C */
}

static void
nv50_graph_construct_gene_clipid(struct nouveau_grctx *ctx)
{
    /* middle of strand 0 on pre-NVA0 [after 24xx], middle of area 6 on NVAx */
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 00000007 UNK0FB4 */
    /* SEEK */
    xf_emit(ctx, 4, 0);     /* 07ffffff CLIPID_REGION_HORIZ */
    xf_emit(ctx, 4, 0);     /* 07ffffff CLIPID_REGION_VERT */
    xf_emit(ctx, 2, 0);     /* 07ffffff SCREEN_SCISSOR */
    xf_emit(ctx, 2, 0x04000000);    /* 07ffffff UNK1508 */
    xf_emit(ctx, 1, 0);     /* 00000001 CLIPID_ENABLE */
    xf_emit(ctx, 1, 0x80);      /* 00003fff CLIPID_WIDTH */
    xf_emit(ctx, 1, 0);     /* 000000ff CLIPID_ID */
    xf_emit(ctx, 1, 0);     /* 000000ff CLIPID_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff CLIPID_ADDRESS_LOW */
    xf_emit(ctx, 1, 0x80);      /* 00003fff CLIPID_HEIGHT */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_CLIPID */
}

static void
nv50_graph_construct_gene_unk24xx(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int i;
    /* middle of strand 0 on pre-NVA0 [after m2mf], end of strand 2 on NVAx */
    /* SEEK */
    xf_emit(ctx, 0x33, 0);
    /* SEEK */
    xf_emit(ctx, 2, 0);
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 4);     /* 0000007f VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    /* SEEK */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 4, 0); /* RO */
        xf_emit(ctx, 0xe10, 0); /* 190 * 9: 8*ffffffff, 7ff */
        xf_emit(ctx, 1, 0); /* 1ff */
        xf_emit(ctx, 8, 0); /* 0? */
        xf_emit(ctx, 9, 0); /* ffffffff, 7ff */

        xf_emit(ctx, 4, 0); /* RO */
        xf_emit(ctx, 0xe10, 0); /* 190 * 9: 8*ffffffff, 7ff */
        xf_emit(ctx, 1, 0); /* 1ff */
        xf_emit(ctx, 8, 0); /* 0? */
        xf_emit(ctx, 9, 0); /* ffffffff, 7ff */
    } else {
        xf_emit(ctx, 0xc, 0);   /* RO */
        /* SEEK */
        xf_emit(ctx, 0xe10, 0); /* 190 * 9: 8*ffffffff, 7ff */
        xf_emit(ctx, 1, 0); /* 1ff */
        xf_emit(ctx, 8, 0); /* 0? */

        /* SEEK */
        xf_emit(ctx, 0xc, 0);   /* RO */
        /* SEEK */
        xf_emit(ctx, 0xe10, 0); /* 190 * 9: 8*ffffffff, 7ff */
        xf_emit(ctx, 1, 0); /* 1ff */
        xf_emit(ctx, 8, 0); /* 0? */
    }
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 4);     /* 0000007f VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0x8100c12); /* 1fffffff FP_INTERPOLANT_CTRL */
    if (device->chipset != 0x50)
        xf_emit(ctx, 1, 3); /* 00000003 tesla UNK1100 */
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0x8100c12); /* 1fffffff FP_INTERPOLANT_CTRL */
    xf_emit(ctx, 1, 0);     /* 0000000f VP_GP_BUILTIN_ATTR_EN */
    xf_emit(ctx, 1, 0x80c14);   /* 01ffffff SEMANTIC_COLOR */
    xf_emit(ctx, 1, 1);     /* 00000001 */
    /* SEEK */
    if (device->chipset >= 0xa0)
        xf_emit(ctx, 2, 4); /* 000000ff */
    xf_emit(ctx, 1, 0x80c14);   /* 01ffffff SEMANTIC_COLOR */
    xf_emit(ctx, 1, 0);     /* 00000001 VERTEX_TWO_SIDE_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 POINT_SPRITE_ENABLE */
    xf_emit(ctx, 1, 0x8100c12); /* 1fffffff FP_INTERPOLANT_CTRL */
    xf_emit(ctx, 1, 0x27);      /* 000000ff SEMANTIC_PRIM_ID */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0);     /* 0000000f */
    xf_emit(ctx, 1, 1);     /* 00000001 */
    for (i = 0; i < 10; i++) {
        /* SEEK */
        xf_emit(ctx, 0x40, 0);      /* ffffffff */
        xf_emit(ctx, 0x10, 0);      /* 3, 0, 0.... */
        xf_emit(ctx, 0x10, 0);      /* ffffffff */
    }
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 00000001 POINT_SPRITE_CTRL */
    xf_emit(ctx, 1, 1);     /* 00000001 */
    xf_emit(ctx, 1, 0);     /* ffffffff */
    xf_emit(ctx, 4, 0);     /* ffffffff NOPERSPECTIVE_BITMAP */
    xf_emit(ctx, 0x10, 0);      /* 00ffffff POINT_COORD_REPLACE_MAP */
    xf_emit(ctx, 1, 0);     /* 00000003 WINDOW_ORIGIN */
    xf_emit(ctx, 1, 0x8100c12); /* 1fffffff FP_INTERPOLANT_CTRL */
    if (device->chipset != 0x50)
        xf_emit(ctx, 1, 0); /* 000003ff */
}

static void
nv50_graph_construct_gene_vfetch(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int acnt = 0x10, rep, i;
    /* beginning of strand 1 on pre-NVA0, strand 3 on NVAx */
    if (IS_NVA3F(device->chipset))
        acnt = 0x20;
    /* SEEK */
    if (device->chipset >= 0xa0) {
        xf_emit(ctx, 1, 0); /* ffffffff tesla UNK13A4 */
        xf_emit(ctx, 1, 1); /* 00000fff tesla UNK1318 */
    }
    xf_emit(ctx, 1, 0);     /* ffffffff VERTEX_BUFFER_FIRST */
    xf_emit(ctx, 1, 0);     /* 00000001 PRIMITIVE_RESTART_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 UNK0DE8 */
    xf_emit(ctx, 1, 0);     /* ffffffff PRIMITIVE_RESTART_INDEX */
    xf_emit(ctx, 1, 0xf);       /* ffffffff VP_ATTR_EN */
    xf_emit(ctx, (acnt/8)-1, 0);    /* ffffffff VP_ATTR_EN */
    xf_emit(ctx, acnt/8, 0);    /* ffffffff VTX_ATR_MASK_UNK0DD0 */
    xf_emit(ctx, 1, 0);     /* 0000000f VP_GP_BUILTIN_ATTR_EN */
    xf_emit(ctx, 1, 0x20);      /* 0000ffff tesla UNK129C */
    xf_emit(ctx, 1, 0);     /* 000000ff turing UNK370??? */
    xf_emit(ctx, 1, 0);     /* 0000ffff turing USER_PARAM_COUNT */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    /* SEEK */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 0xb, 0);   /* RO */
    else if (device->chipset >= 0xa0)
        xf_emit(ctx, 0x9, 0);   /* RO */
    else
        xf_emit(ctx, 0x8, 0);   /* RO */
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 00000001 EDGE_FLAG */
    xf_emit(ctx, 1, 0);     /* 00000001 PROVOKING_VERTEX_LAST */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0x1a);      /* 0000001f POLYGON_MODE */
    /* SEEK */
    xf_emit(ctx, 0xc, 0);       /* RO */
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 7f/ff */
    xf_emit(ctx, 1, 4);     /* 7f/ff VP_REG_ALLOC_RESULT */
    xf_emit(ctx, 1, 4);     /* 7f/ff VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);     /* 0000000f VP_GP_BUILTIN_ATTR_EN */
    xf_emit(ctx, 1, 4);     /* 000001ff UNK1A28 */
    xf_emit(ctx, 1, 8);     /* 000001ff UNK0DF0 */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    if (device->chipset == 0x50)
        xf_emit(ctx, 1, 0x3ff); /* 3ff tesla UNK0D68 */
    else
        xf_emit(ctx, 1, 0x7ff); /* 7ff tesla UNK0D68 */
    if (device->chipset == 0xa8)
        xf_emit(ctx, 1, 0x1e00);    /* 7fff */
    /* SEEK */
    xf_emit(ctx, 0xc, 0);       /* RO or close */
    /* SEEK */
    xf_emit(ctx, 1, 0xf);       /* ffffffff VP_ATTR_EN */
    xf_emit(ctx, (acnt/8)-1, 0);    /* ffffffff VP_ATTR_EN */
    xf_emit(ctx, 1, 0);     /* 0000000f VP_GP_BUILTIN_ATTR_EN */
    if (device->chipset > 0x50 && device->chipset < 0xa0)
        xf_emit(ctx, 2, 0); /* ffffffff */
    else
        xf_emit(ctx, 1, 0); /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 00000003 tesla UNK0FD8 */
    /* SEEK */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 0x10, 0);  /* 0? */
        xf_emit(ctx, 2, 0); /* weird... */
        xf_emit(ctx, 2, 0); /* RO */
    } else {
        xf_emit(ctx, 8, 0); /* 0? */
        xf_emit(ctx, 1, 0); /* weird... */
        xf_emit(ctx, 2, 0); /* RO */
    }
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* ffffffff VB_ELEMENT_BASE */
    xf_emit(ctx, 1, 0);     /* ffffffff UNK1438 */
    xf_emit(ctx, acnt, 0);      /* 1 tesla UNK1000 */
    if (device->chipset >= 0xa0)
        xf_emit(ctx, 1, 0); /* ffffffff tesla UNK1118? */
    /* SEEK */
    xf_emit(ctx, acnt, 0);      /* ffffffff VERTEX_ARRAY_UNK90C */
    xf_emit(ctx, 1, 0);     /* f/1f */
    /* SEEK */
    xf_emit(ctx, acnt, 0);      /* ffffffff VERTEX_ARRAY_UNK90C */
    xf_emit(ctx, 1, 0);     /* f/1f */
    /* SEEK */
    xf_emit(ctx, acnt, 0);      /* RO */
    xf_emit(ctx, 2, 0);     /* RO */
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK111C? */
    xf_emit(ctx, 1, 0);     /* RO */
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 000000ff UNK15F4_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff UNK15F4_ADDRESS_LOW */
    xf_emit(ctx, 1, 0);     /* 000000ff UNK0F84_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff UNK0F84_ADDRESS_LOW */
    /* SEEK */
    xf_emit(ctx, acnt, 0);      /* 00003fff VERTEX_ARRAY_ATTRIB_OFFSET */
    xf_emit(ctx, 3, 0);     /* f/1f */
    /* SEEK */
    xf_emit(ctx, acnt, 0);      /* 00000fff VERTEX_ARRAY_STRIDE */
    xf_emit(ctx, 3, 0);     /* f/1f */
    /* SEEK */
    xf_emit(ctx, acnt, 0);      /* ffffffff VERTEX_ARRAY_LOW */
    xf_emit(ctx, 3, 0);     /* f/1f */
    /* SEEK */
    xf_emit(ctx, acnt, 0);      /* 000000ff VERTEX_ARRAY_HIGH */
    xf_emit(ctx, 3, 0);     /* f/1f */
    /* SEEK */
    xf_emit(ctx, acnt, 0);      /* ffffffff VERTEX_LIMIT_LOW */
    xf_emit(ctx, 3, 0);     /* f/1f */
    /* SEEK */
    xf_emit(ctx, acnt, 0);      /* 000000ff VERTEX_LIMIT_HIGH */
    xf_emit(ctx, 3, 0);     /* f/1f */
    /* SEEK */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, acnt, 0);      /* f */
        xf_emit(ctx, 3, 0);     /* f/1f */
    }
    /* SEEK */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 2, 0); /* RO */
    else
        xf_emit(ctx, 5, 0); /* RO */
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* ffff DMA_VTXBUF */
    /* SEEK */
    if (device->chipset < 0xa0) {
        xf_emit(ctx, 0x41, 0);  /* RO */
        /* SEEK */
        xf_emit(ctx, 0x11, 0);  /* RO */
    } else if (!IS_NVA3F(device->chipset))
        xf_emit(ctx, 0x50, 0);  /* RO */
    else
        xf_emit(ctx, 0x58, 0);  /* RO */
    /* SEEK */
    xf_emit(ctx, 1, 0xf);       /* ffffffff VP_ATTR_EN */
    xf_emit(ctx, (acnt/8)-1, 0);    /* ffffffff VP_ATTR_EN */
    xf_emit(ctx, 1, 1);     /* 1 UNK0DEC */
    /* SEEK */
    xf_emit(ctx, acnt*4, 0);    /* ffffffff VTX_ATTR */
    xf_emit(ctx, 4, 0);     /* f/1f, 0, 0, 0 */
    /* SEEK */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 0x1d, 0);  /* RO */
    else
        xf_emit(ctx, 0x16, 0);  /* RO */
    /* SEEK */
    xf_emit(ctx, 1, 0xf);       /* ffffffff VP_ATTR_EN */
    xf_emit(ctx, (acnt/8)-1, 0);    /* ffffffff VP_ATTR_EN */
    /* SEEK */
    if (device->chipset < 0xa0)
        xf_emit(ctx, 8, 0); /* RO */
    else if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 0xc, 0);   /* RO */
    else
        xf_emit(ctx, 7, 0); /* RO */
    /* SEEK */
    xf_emit(ctx, 0xa, 0);       /* RO */
    if (device->chipset == 0xa0)
        rep = 0xc;
    else
        rep = 4;
    for (i = 0; i < rep; i++) {
        /* SEEK */
        if (IS_NVA3F(device->chipset))
            xf_emit(ctx, 0x20, 0);  /* ffffffff */
        xf_emit(ctx, 0x200, 0); /* ffffffff */
        xf_emit(ctx, 4, 0); /* 7f/ff, 0, 0, 0 */
        xf_emit(ctx, 4, 0); /* ffffffff */
    }
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 113/111 */
    xf_emit(ctx, 1, 0xf);       /* ffffffff VP_ATTR_EN */
    xf_emit(ctx, (acnt/8)-1, 0);    /* ffffffff VP_ATTR_EN */
    xf_emit(ctx, acnt/8, 0);    /* ffffffff VTX_ATTR_MASK_UNK0DD0 */
    xf_emit(ctx, 1, 0);     /* 0000000f VP_GP_BUILTIN_ATTR_EN */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    /* SEEK */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 7, 0); /* weird... */
    else
        xf_emit(ctx, 5, 0); /* weird... */
}

static void
nv50_graph_construct_gene_eng2d(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    /* middle of strand 1 on pre-NVA0 [after vfetch], middle of strand 6 on NVAx */
    /* SEEK */
    xf_emit(ctx, 2, 0);     /* 0001ffff CLIP_X, CLIP_Y */
    xf_emit(ctx, 2, 0);     /* 0000ffff CLIP_W, CLIP_H */
    xf_emit(ctx, 1, 0);     /* 00000001 CLIP_ENABLE */
    if (device->chipset < 0xa0) {
        /* this is useless on everything but the original NV50,
         * guess they forgot to nuke it. Or just didn't bother. */
        xf_emit(ctx, 2, 0); /* 0000ffff IFC_CLIP_X, Y */
        xf_emit(ctx, 2, 1); /* 0000ffff IFC_CLIP_W, H */
        xf_emit(ctx, 1, 0); /* 00000001 IFC_CLIP_ENABLE */
    }
    xf_emit(ctx, 1, 1);     /* 00000001 DST_LINEAR */
    xf_emit(ctx, 1, 0x100);     /* 0001ffff DST_WIDTH */
    xf_emit(ctx, 1, 0x100);     /* 0001ffff DST_HEIGHT */
    xf_emit(ctx, 1, 0x11);      /* 3f[NV50]/7f[NV84+] DST_FORMAT */
    xf_emit(ctx, 1, 0);     /* 0001ffff DRAW_POINT_X */
    xf_emit(ctx, 1, 8);     /* 0000000f DRAW_UNK58C */
    xf_emit(ctx, 1, 0);     /* 000fffff SIFC_DST_X_FRACT */
    xf_emit(ctx, 1, 0);     /* 0001ffff SIFC_DST_X_INT */
    xf_emit(ctx, 1, 0);     /* 000fffff SIFC_DST_Y_FRACT */
    xf_emit(ctx, 1, 0);     /* 0001ffff SIFC_DST_Y_INT */
    xf_emit(ctx, 1, 0);     /* 000fffff SIFC_DX_DU_FRACT */
    xf_emit(ctx, 1, 1);     /* 0001ffff SIFC_DX_DU_INT */
    xf_emit(ctx, 1, 0);     /* 000fffff SIFC_DY_DV_FRACT */
    xf_emit(ctx, 1, 1);     /* 0001ffff SIFC_DY_DV_INT */
    xf_emit(ctx, 1, 1);     /* 0000ffff SIFC_WIDTH */
    xf_emit(ctx, 1, 1);     /* 0000ffff SIFC_HEIGHT */
    xf_emit(ctx, 1, 0xcf);      /* 000000ff SIFC_FORMAT */
    xf_emit(ctx, 1, 2);     /* 00000003 SIFC_BITMAP_UNK808 */
    xf_emit(ctx, 1, 0);     /* 00000003 SIFC_BITMAP_LINE_PACK_MODE */
    xf_emit(ctx, 1, 0);     /* 00000001 SIFC_BITMAP_LSB_FIRST */
    xf_emit(ctx, 1, 0);     /* 00000001 SIFC_BITMAP_ENABLE */
    xf_emit(ctx, 1, 0);     /* 0000ffff BLIT_DST_X */
    xf_emit(ctx, 1, 0);     /* 0000ffff BLIT_DST_Y */
    xf_emit(ctx, 1, 0);     /* 000fffff BLIT_DU_DX_FRACT */
    xf_emit(ctx, 1, 1);     /* 0001ffff BLIT_DU_DX_INT */
    xf_emit(ctx, 1, 0);     /* 000fffff BLIT_DV_DY_FRACT */
    xf_emit(ctx, 1, 1);     /* 0001ffff BLIT_DV_DY_INT */
    xf_emit(ctx, 1, 1);     /* 0000ffff BLIT_DST_W */
    xf_emit(ctx, 1, 1);     /* 0000ffff BLIT_DST_H */
    xf_emit(ctx, 1, 0);     /* 000fffff BLIT_SRC_X_FRACT */
    xf_emit(ctx, 1, 0);     /* 0001ffff BLIT_SRC_X_INT */
    xf_emit(ctx, 1, 0);     /* 000fffff BLIT_SRC_Y_FRACT */
    xf_emit(ctx, 1, 0);     /* 00000001 UNK888 */
    xf_emit(ctx, 1, 4);     /* 0000003f UNK884 */
    xf_emit(ctx, 1, 0);     /* 00000007 UNK880 */
    xf_emit(ctx, 1, 1);     /* 0000001f tesla UNK0FB8 */
    xf_emit(ctx, 1, 0x15);      /* 000000ff tesla UNK128C */
    xf_emit(ctx, 2, 0);     /* 00000007, ffff0ff3 */
    xf_emit(ctx, 1, 0);     /* 00000001 UNK260 */
    xf_emit(ctx, 1, 0x4444480); /* 1fffffff UNK870 */
    /* SEEK */
    xf_emit(ctx, 0x10, 0);
    /* SEEK */
    xf_emit(ctx, 0x27, 0);
}

static void
nv50_graph_construct_gene_csched(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    /* middle of strand 1 on pre-NVA0 [after eng2d], middle of strand 0 on NVAx */
    /* SEEK */
    xf_emit(ctx, 2, 0);     /* 00007fff WINDOW_OFFSET_XY... what is it doing here??? */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1924 */
    xf_emit(ctx, 1, 0);     /* 00000003 WINDOW_ORIGIN */
    xf_emit(ctx, 1, 0x8100c12); /* 1fffffff FP_INTERPOLANT_CTRL */
    xf_emit(ctx, 1, 0);     /* 000003ff */
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* ffffffff turing UNK364 */
    xf_emit(ctx, 1, 0);     /* 0000000f turing UNK36C */
    xf_emit(ctx, 1, 0);     /* 0000ffff USER_PARAM_COUNT */
    xf_emit(ctx, 1, 0x100);     /* 00ffffff turing UNK384 */
    xf_emit(ctx, 1, 0);     /* 0000000f turing UNK2A0 */
    xf_emit(ctx, 1, 0);     /* 0000ffff GRIDID */
    xf_emit(ctx, 1, 0x10001);   /* ffffffff GRIDDIM_XY */
    xf_emit(ctx, 1, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0x10001);   /* ffffffff BLOCKDIM_XY */
    xf_emit(ctx, 1, 1);     /* 0000ffff BLOCKDIM_Z */
    xf_emit(ctx, 1, 0x10001);   /* 00ffffff BLOCK_ALLOC */
    xf_emit(ctx, 1, 1);     /* 00000001 LANES32 */
    xf_emit(ctx, 1, 4);     /* 000000ff FP_REG_ALLOC_TEMP */
    xf_emit(ctx, 1, 2);     /* 00000003 REG_MODE */
    /* SEEK */
    xf_emit(ctx, 0x40, 0);      /* ffffffff USER_PARAM */
    switch (device->chipset) {
    case 0x50:
    case 0x92:
        xf_emit(ctx, 8, 0); /* 7, 0, 0, 0, ... */
        xf_emit(ctx, 0x80, 0);  /* fff */
        xf_emit(ctx, 2, 0); /* ff, fff */
        xf_emit(ctx, 0x10*2, 0);    /* ffffffff, 1f */
        break;
    case 0x84:
        xf_emit(ctx, 8, 0); /* 7, 0, 0, 0, ... */
        xf_emit(ctx, 0x60, 0);  /* fff */
        xf_emit(ctx, 2, 0); /* ff, fff */
        xf_emit(ctx, 0xc*2, 0); /* ffffffff, 1f */
        break;
    case 0x94:
    case 0x96:
        xf_emit(ctx, 8, 0); /* 7, 0, 0, 0, ... */
        xf_emit(ctx, 0x40, 0);  /* fff */
        xf_emit(ctx, 2, 0); /* ff, fff */
        xf_emit(ctx, 8*2, 0);   /* ffffffff, 1f */
        break;
    case 0x86:
    case 0x98:
        xf_emit(ctx, 4, 0); /* f, 0, 0, 0 */
        xf_emit(ctx, 0x10, 0);  /* fff */
        xf_emit(ctx, 2, 0); /* ff, fff */
        xf_emit(ctx, 2*2, 0);   /* ffffffff, 1f */
        break;
    case 0xa0:
        xf_emit(ctx, 8, 0); /* 7, 0, 0, 0, ... */
        xf_emit(ctx, 0xf0, 0);  /* fff */
        xf_emit(ctx, 2, 0); /* ff, fff */
        xf_emit(ctx, 0x1e*2, 0);    /* ffffffff, 1f */
        break;
    case 0xa3:
        xf_emit(ctx, 8, 0); /* 7, 0, 0, 0, ... */
        xf_emit(ctx, 0x60, 0);  /* fff */
        xf_emit(ctx, 2, 0); /* ff, fff */
        xf_emit(ctx, 0xc*2, 0); /* ffffffff, 1f */
        break;
    case 0xa5:
    case 0xaf:
        xf_emit(ctx, 8, 0); /* 7, 0, 0, 0, ... */
        xf_emit(ctx, 0x30, 0);  /* fff */
        xf_emit(ctx, 2, 0); /* ff, fff */
        xf_emit(ctx, 6*2, 0);   /* ffffffff, 1f */
        break;
    case 0xaa:
        xf_emit(ctx, 0x12, 0);
        break;
    case 0xa8:
    case 0xac:
        xf_emit(ctx, 4, 0); /* f, 0, 0, 0 */
        xf_emit(ctx, 0x10, 0);  /* fff */
        xf_emit(ctx, 2, 0); /* ff, fff */
        xf_emit(ctx, 2*2, 0);   /* ffffffff, 1f */
        break;
    }
    xf_emit(ctx, 1, 0);     /* 0000000f */
    xf_emit(ctx, 1, 0);     /* 00000000 */
    xf_emit(ctx, 1, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 0000001f */
    xf_emit(ctx, 4, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 00000003 turing UNK35C */
    xf_emit(ctx, 1, 0);     /* ffffffff */
    xf_emit(ctx, 4, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 00000003 turing UNK35C */
    xf_emit(ctx, 1, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 000000ff */
}

static void
nv50_graph_construct_gene_unk1cxx(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    xf_emit(ctx, 2, 0);     /* 00007fff WINDOW_OFFSET_XY */
    xf_emit(ctx, 1, 0x3f800000);    /* ffffffff LINE_WIDTH */
    xf_emit(ctx, 1, 0);     /* 00000001 LINE_SMOOTH_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1658 */
    xf_emit(ctx, 1, 0);     /* 00000001 POLYGON_SMOOTH_ENABLE */
    xf_emit(ctx, 3, 0);     /* 00000001 POLYGON_OFFSET_*_ENABLE */
    xf_emit(ctx, 1, 4);     /* 0000000f CULL_MODE */
    xf_emit(ctx, 1, 0x1a);      /* 0000001f POLYGON_MODE */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 0);     /* 00000001 POINT_SPRITE_ENABLE */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK165C */
    xf_emit(ctx, 0x10, 0);      /* 00000001 SCISSOR_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 1, 0);     /* 00000001 LINE_STIPPLE_ENABLE */
    xf_emit(ctx, 1, 0x00ffff00);    /* 00ffffff LINE_STIPPLE_PATTERN */
    xf_emit(ctx, 1, 0);     /* ffffffff POLYGON_OFFSET_UNITS */
    xf_emit(ctx, 1, 0);     /* ffffffff POLYGON_OFFSET_FACTOR */
    xf_emit(ctx, 1, 0);     /* 00000003 tesla UNK1668 */
    xf_emit(ctx, 2, 0);     /* 07ffffff SCREEN_SCISSOR */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1900 */
    xf_emit(ctx, 1, 0xf);       /* 0000000f COLOR_MASK */
    xf_emit(ctx, 7, 0);     /* 0000000f COLOR_MASK */
    xf_emit(ctx, 1, 0x0fac6881);    /* 0fffffff RT_CONTROL */
    xf_emit(ctx, 1, 0x11);      /* 0000007f RT_FORMAT */
    xf_emit(ctx, 7, 0);     /* 0000007f RT_FORMAT */
    xf_emit(ctx, 8, 0);     /* 00000001 RT_HORIZ_LINEAR */
    xf_emit(ctx, 1, 4);     /* 00000007 FP_CONTROL */
    xf_emit(ctx, 1, 0);     /* 00000001 ALPHA_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000007 ALPHA_TEST_FUNC */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 3); /* 00000003 UNK16B4 */
    else if (device->chipset >= 0xa0)
        xf_emit(ctx, 1, 1); /* 00000001 UNK16B4 */
    xf_emit(ctx, 1, 0);     /* 00000003 MULTISAMPLE_CTRL */
    xf_emit(ctx, 1, 0);     /* 00000003 tesla UNK0F90 */
    xf_emit(ctx, 1, 2);     /* 00000003 tesla UNK143C */
    xf_emit(ctx, 2, 0x04000000);    /* 07ffffff tesla UNK0D6C */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_MASK */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 SAMPLECNT_ENABLE */
    xf_emit(ctx, 1, 5);     /* 0000000f UNK1408 */
    xf_emit(ctx, 1, 0x52);      /* 000001ff SEMANTIC_PTSZ */
    xf_emit(ctx, 1, 0);     /* ffffffff POINT_SIZE */
    xf_emit(ctx, 1, 0);     /* 00000001 */
    xf_emit(ctx, 1, 0);     /* 00000007 tesla UNK0FB4 */
    if (device->chipset != 0x50) {
        xf_emit(ctx, 1, 0); /* 3ff */
        xf_emit(ctx, 1, 1); /* 00000001 tesla UNK1110 */
    }
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 0); /* 00000003 tesla UNK1928 */
    xf_emit(ctx, 0x10, 0);      /* ffffffff DEPTH_RANGE_NEAR */
    xf_emit(ctx, 0x10, 0x3f800000); /* ffffffff DEPTH_RANGE_FAR */
    xf_emit(ctx, 1, 0x10);      /* 000000ff VIEW_VOLUME_CLIP_CTRL */
    xf_emit(ctx, 0x20, 0);      /* 07ffffff VIEWPORT_HORIZ, then VIEWPORT_VERT. (W&0x3fff)<<13 | (X&0x1fff). */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK187C */
    xf_emit(ctx, 1, 0);     /* 00000003 WINDOW_ORIGIN */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_BACK_ENABLE */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_MASK */
    xf_emit(ctx, 1, 0x8100c12); /* 1fffffff FP_INTERPOLANT_CTRL */
    xf_emit(ctx, 1, 5);     /* 0000000f tesla UNK1220 */
    xf_emit(ctx, 1, 0);     /* 00000007 MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 000000ff tesla UNK1A20 */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 VERTEX_TWO_SIDE_ENABLE */
    xf_emit(ctx, 4, 0xffff);    /* 0000ffff MSAA_MASK */
    if (device->chipset != 0x50)
        xf_emit(ctx, 1, 3); /* 00000003 tesla UNK1100 */
    if (device->chipset < 0xa0)
        xf_emit(ctx, 0x1c, 0);  /* RO */
    else if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 0x9, 0);
    xf_emit(ctx, 1, 0);     /* 00000001 UNK1534 */
    xf_emit(ctx, 1, 0);     /* 00000001 LINE_SMOOTH_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 LINE_STIPPLE_ENABLE */
    xf_emit(ctx, 1, 0x00ffff00);    /* 00ffffff LINE_STIPPLE_PATTERN */
    xf_emit(ctx, 1, 0x1a);      /* 0000001f POLYGON_MODE */
    xf_emit(ctx, 1, 0);     /* 00000003 WINDOW_ORIGIN */
    if (device->chipset != 0x50) {
        xf_emit(ctx, 1, 3); /* 00000003 tesla UNK1100 */
        xf_emit(ctx, 1, 0); /* 3ff */
    }
    /* XXX: the following block could belong either to unk1cxx, or
     * to STRMOUT. Rather hard to tell. */
    if (device->chipset < 0xa0)
        xf_emit(ctx, 0x25, 0);
    else
        xf_emit(ctx, 0x3b, 0);
}

static void
nv50_graph_construct_gene_strmout(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    xf_emit(ctx, 1, 0x102);     /* 0000ffff STRMOUT_BUFFER_CTRL */
    xf_emit(ctx, 1, 0);     /* ffffffff STRMOUT_PRIMITIVE_COUNT */
    xf_emit(ctx, 4, 4);     /* 000000ff STRMOUT_NUM_ATTRIBS */
    if (device->chipset >= 0xa0) {
        xf_emit(ctx, 4, 0); /* ffffffff UNK1A8C */
        xf_emit(ctx, 4, 0); /* ffffffff UNK1780 */
    }
    xf_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 4);     /* 0000007f VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    if (device->chipset == 0x50)
        xf_emit(ctx, 1, 0x3ff); /* 000003ff tesla UNK0D68 */
    else
        xf_emit(ctx, 1, 0x7ff); /* 000007ff tesla UNK0D68 */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    /* SEEK */
    xf_emit(ctx, 1, 0x102);     /* 0000ffff STRMOUT_BUFFER_CTRL */
    xf_emit(ctx, 1, 0);     /* ffffffff STRMOUT_PRIMITIVE_COUNT */
    xf_emit(ctx, 4, 0);     /* 000000ff STRMOUT_ADDRESS_HIGH */
    xf_emit(ctx, 4, 0);     /* ffffffff STRMOUT_ADDRESS_LOW */
    xf_emit(ctx, 4, 4);     /* 000000ff STRMOUT_NUM_ATTRIBS */
    if (device->chipset >= 0xa0) {
        xf_emit(ctx, 4, 0); /* ffffffff UNK1A8C */
        xf_emit(ctx, 4, 0); /* ffffffff UNK1780 */
    }
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_STRMOUT */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_QUERY */
    xf_emit(ctx, 1, 0);     /* 000000ff QUERY_ADDRESS_HIGH */
    xf_emit(ctx, 2, 0);     /* ffffffff QUERY_ADDRESS_LOW QUERY_COUNTER */
    xf_emit(ctx, 2, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    /* SEEK */
    xf_emit(ctx, 0x20, 0);      /* ffffffff STRMOUT_MAP */
    xf_emit(ctx, 1, 0);     /* 0000000f */
    xf_emit(ctx, 1, 0);     /* 00000000? */
    xf_emit(ctx, 2, 0);     /* ffffffff */
}

static void
nv50_graph_construct_gene_ropm1(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    xf_emit(ctx, 1, 0x4e3bfdf); /* ffffffff UNK0D64 */
    xf_emit(ctx, 1, 0x4e3bfdf); /* ffffffff UNK0DF4 */
    xf_emit(ctx, 1, 0);     /* 00000007 */
    xf_emit(ctx, 1, 0);     /* 000003ff */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 0x11);  /* 000000ff tesla UNK1968 */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
}

static void
nv50_graph_construct_gene_ropm2(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_QUERY */
    xf_emit(ctx, 1, 0x0fac6881);    /* 0fffffff RT_CONTROL */
    xf_emit(ctx, 2, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 000000ff QUERY_ADDRESS_HIGH */
    xf_emit(ctx, 2, 0);     /* ffffffff QUERY_ADDRESS_LOW, COUNTER */
    xf_emit(ctx, 1, 0);     /* 00000001 SAMPLECNT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 7 */
    /* SEEK */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_QUERY */
    xf_emit(ctx, 1, 0);     /* 000000ff QUERY_ADDRESS_HIGH */
    xf_emit(ctx, 2, 0);     /* ffffffff QUERY_ADDRESS_LOW, COUNTER */
    xf_emit(ctx, 1, 0x4e3bfdf); /* ffffffff UNK0D64 */
    xf_emit(ctx, 1, 0x4e3bfdf); /* ffffffff UNK0DF4 */
    xf_emit(ctx, 1, 0);     /* 00000001 eng2d UNK260 */
    xf_emit(ctx, 1, 0);     /* ff/3ff */
    xf_emit(ctx, 1, 0);     /* 00000007 */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 0x11);  /* 000000ff tesla UNK1968 */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
}

static void
nv50_graph_construct_gene_ropc(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int magic2;
    if (device->chipset == 0x50) {
        magic2 = 0x00003e60;
    } else if (!IS_NVA3F(device->chipset)) {
        magic2 = 0x001ffe67;
    } else {
        magic2 = 0x00087e67;
    }
    xf_emit(ctx, 1, 0);     /* f/7 MUTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_BACK_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_MASK */
    xf_emit(ctx, 3, 0);     /* 00000007 STENCIL_BACK_OP_FAIL, ZFAIL, ZPASS */
    xf_emit(ctx, 1, 2);     /* 00000003 tesla UNK143C */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 1, magic2);    /* 001fffff tesla UNK0F78 */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_BOUNDS_EN */
    xf_emit(ctx, 1, 0);     /* 00000007 DEPTH_TEST_FUNC */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_FRONT_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_MASK */
    xf_emit(ctx, 3, 0);     /* 00000007 STENCIL_FRONT_OP_FAIL, ZFAIL, ZPASS */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    if (device->chipset >= 0xa0 && !IS_NVAAF(device->chipset))
        xf_emit(ctx, 1, 0x15);  /* 000000ff */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_BACK_ENABLE */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK15B4 */
    xf_emit(ctx, 1, 0x10);      /* 3ff/ff VIEW_VOLUME_CLIP_CTRL */
    xf_emit(ctx, 1, 0);     /* ffffffff CLEAR_DEPTH */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
    if (device->chipset == 0x86 || device->chipset == 0x92 || device->chipset == 0x98 || device->chipset >= 0xa0) {
        xf_emit(ctx, 3, 0); /* ff, ffffffff, ffffffff */
        xf_emit(ctx, 1, 4); /* 7 */
        xf_emit(ctx, 1, 0x400); /* fffffff */
        xf_emit(ctx, 1, 0x300); /* ffff */
        xf_emit(ctx, 1, 0x1001);    /* 1fff */
        if (device->chipset != 0xa0) {
            if (IS_NVA3F(device->chipset))
                xf_emit(ctx, 1, 0); /* 0000000f UNK15C8 */
            else
                xf_emit(ctx, 1, 0x15);  /* ff */
        }
    }
    xf_emit(ctx, 1, 0);     /* 00000007 MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_BACK_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 1, 2);     /* 00000003 tesla UNK143C */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_BOUNDS_EN */
    xf_emit(ctx, 1, 0);     /* 00000007 DEPTH_TEST_FUNC */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_FRONT_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_BACK_ENABLE */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK15B4 */
    xf_emit(ctx, 1, 0x10);      /* 7f/ff VIEW_VOLUME_CLIP_CTRL */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1900 */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_BACK_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_FUNC_REF */
    xf_emit(ctx, 2, 0);     /* ffffffff DEPTH_BOUNDS */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_BOUNDS_EN */
    xf_emit(ctx, 1, 0);     /* 00000007 DEPTH_TEST_FUNC */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    xf_emit(ctx, 1, 0);     /* 0000000f */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK0FB0 */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_FRONT_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_FUNC_REF */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_BACK_ENABLE */
    xf_emit(ctx, 1, 0x10);      /* 7f/ff VIEW_VOLUME_CLIP_CTRL */
    xf_emit(ctx, 0x10, 0);      /* ffffffff DEPTH_RANGE_NEAR */
    xf_emit(ctx, 0x10, 0x3f800000); /* ffffffff DEPTH_RANGE_FAR */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 0);     /* 00000007 MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_BACK_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_FUNC_REF */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_MASK */
    xf_emit(ctx, 3, 0);     /* 00000007 STENCIL_BACK_OP_FAIL, ZFAIL, ZPASS */
    xf_emit(ctx, 2, 0);     /* ffffffff DEPTH_BOUNDS */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_BOUNDS_EN */
    xf_emit(ctx, 1, 0);     /* 00000007 DEPTH_TEST_FUNC */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    xf_emit(ctx, 1, 0);     /* 000000ff CLEAR_STENCIL */
    xf_emit(ctx, 1, 0);     /* 00000007 STENCIL_FRONT_FUNC_FUNC */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_FUNC_MASK */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_FUNC_REF */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_MASK */
    xf_emit(ctx, 3, 0);     /* 00000007 STENCIL_FRONT_OP_FAIL, ZFAIL, ZPASS */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_BACK_ENABLE */
    xf_emit(ctx, 1, 0x10);      /* 7f/ff VIEW_VOLUME_CLIP_CTRL */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 0x3f);      /* 0000003f UNK1590 */
    xf_emit(ctx, 1, 0);     /* 00000007 MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 2, 0);     /* ffff0ff3, ffff */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK0FB0 */
    xf_emit(ctx, 1, 0);     /* 0001ffff GP_BUILTIN_RESULT_EN */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK15B4 */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffffffff CLEAR_DEPTH */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK19CC */
    if (device->chipset >= 0xa0) {
        xf_emit(ctx, 2, 0);
        xf_emit(ctx, 1, 0x1001);
        xf_emit(ctx, 0xb, 0);
    } else {
        xf_emit(ctx, 1, 0); /* 00000007 */
        xf_emit(ctx, 1, 0); /* 00000001 tesla UNK1534 */
        xf_emit(ctx, 1, 0); /* 00000007 MULTISAMPLE_SAMPLES_LOG2 */
        xf_emit(ctx, 8, 0); /* 00000001 BLEND_ENABLE */
        xf_emit(ctx, 1, 0); /* ffff0ff3 */
    }
    xf_emit(ctx, 1, 0x11);      /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 7, 0);     /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 1, 0xf);       /* 0000000f COLOR_MASK */
    xf_emit(ctx, 7, 0);     /* 0000000f COLOR_MASK */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f */
    xf_emit(ctx, 1, 0);     /* 00000001 LOGIC_OP_ENABLE */
    if (device->chipset != 0x50) {
        xf_emit(ctx, 1, 0); /* 0000000f LOGIC_OP */
        xf_emit(ctx, 1, 0); /* 000000ff */
    }
    xf_emit(ctx, 1, 0);     /* 00000007 OPERATION */
    xf_emit(ctx, 1, 0);     /* ff/3ff */
    xf_emit(ctx, 1, 0);     /* 00000003 UNK0F90 */
    xf_emit(ctx, 2, 1);     /* 00000007 BLEND_EQUATION_RGB, ALPHA */
    xf_emit(ctx, 1, 1);     /* 00000001 UNK133C */
    xf_emit(ctx, 1, 2);     /* 0000001f BLEND_FUNC_SRC_RGB */
    xf_emit(ctx, 1, 1);     /* 0000001f BLEND_FUNC_DST_RGB */
    xf_emit(ctx, 1, 2);     /* 0000001f BLEND_FUNC_SRC_ALPHA */
    xf_emit(ctx, 1, 1);     /* 0000001f BLEND_FUNC_DST_ALPHA */
    xf_emit(ctx, 1, 0);     /* 00000001 */
    xf_emit(ctx, 1, magic2);    /* 001fffff tesla UNK0F78 */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
    xf_emit(ctx, 1, 0x0fac6881);    /* 0fffffff RT_CONTROL */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 1, 0); /* 00000001 tesla UNK12E4 */
        xf_emit(ctx, 8, 1); /* 00000007 IBLEND_EQUATION_RGB */
        xf_emit(ctx, 8, 1); /* 00000007 IBLEND_EQUATION_ALPHA */
        xf_emit(ctx, 8, 1); /* 00000001 IBLEND_UNK00 */
        xf_emit(ctx, 8, 2); /* 0000001f IBLEND_FUNC_SRC_RGB */
        xf_emit(ctx, 8, 1); /* 0000001f IBLEND_FUNC_DST_RGB */
        xf_emit(ctx, 8, 2); /* 0000001f IBLEND_FUNC_SRC_ALPHA */
        xf_emit(ctx, 8, 1); /* 0000001f IBLEND_FUNC_DST_ALPHA */
        xf_emit(ctx, 1, 0); /* 00000001 tesla UNK1140 */
        xf_emit(ctx, 2, 0); /* 00000001 */
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
        xf_emit(ctx, 1, 0); /* 0000000f */
        xf_emit(ctx, 1, 0); /* 00000003 */
        xf_emit(ctx, 1, 0); /* ffffffff */
        xf_emit(ctx, 2, 0); /* 00000001 */
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
        xf_emit(ctx, 1, 0); /* 00000001 */
        xf_emit(ctx, 1, 0); /* 000003ff */
    } else if (device->chipset >= 0xa0) {
        xf_emit(ctx, 2, 0); /* 00000001 */
        xf_emit(ctx, 1, 0); /* 00000007 */
        xf_emit(ctx, 1, 0); /* 00000003 */
        xf_emit(ctx, 1, 0); /* ffffffff */
        xf_emit(ctx, 2, 0); /* 00000001 */
    } else {
        xf_emit(ctx, 1, 0); /* 00000007 MULTISAMPLE_SAMPLES_LOG2 */
        xf_emit(ctx, 1, 0); /* 00000003 tesla UNK1430 */
        xf_emit(ctx, 1, 0); /* ffffffff tesla UNK1A3C */
    }
    xf_emit(ctx, 4, 0);     /* ffffffff CLEAR_COLOR */
    xf_emit(ctx, 4, 0);     /* ffffffff BLEND_COLOR A R G B */
    xf_emit(ctx, 1, 0);     /* 00000fff eng2d UNK2B0 */
    if (device->chipset >= 0xa0)
        xf_emit(ctx, 2, 0); /* 00000001 */
    xf_emit(ctx, 1, 0);     /* 000003ff */
    xf_emit(ctx, 8, 0);     /* 00000001 BLEND_ENABLE */
    xf_emit(ctx, 1, 1);     /* 00000001 UNK133C */
    xf_emit(ctx, 1, 2);     /* 0000001f BLEND_FUNC_SRC_RGB */
    xf_emit(ctx, 1, 1);     /* 0000001f BLEND_FUNC_DST_RGB */
    xf_emit(ctx, 1, 1);     /* 00000007 BLEND_EQUATION_RGB */
    xf_emit(ctx, 1, 2);     /* 0000001f BLEND_FUNC_SRC_ALPHA */
    xf_emit(ctx, 1, 1);     /* 0000001f BLEND_FUNC_DST_ALPHA */
    xf_emit(ctx, 1, 1);     /* 00000007 BLEND_EQUATION_ALPHA */
    xf_emit(ctx, 1, 0);     /* 00000001 UNK19C0 */
    xf_emit(ctx, 1, 0);     /* 00000001 LOGIC_OP_ENABLE */
    xf_emit(ctx, 1, 0);     /* 0000000f LOGIC_OP */
    if (device->chipset >= 0xa0)
        xf_emit(ctx, 1, 0); /* 00000001 UNK12E4? NVA3+ only? */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 8, 1); /* 00000001 IBLEND_UNK00 */
        xf_emit(ctx, 8, 1); /* 00000007 IBLEND_EQUATION_RGB */
        xf_emit(ctx, 8, 2); /* 0000001f IBLEND_FUNC_SRC_RGB */
        xf_emit(ctx, 8, 1); /* 0000001f IBLEND_FUNC_DST_RGB */
        xf_emit(ctx, 8, 1); /* 00000007 IBLEND_EQUATION_ALPHA */
        xf_emit(ctx, 8, 2); /* 0000001f IBLEND_FUNC_SRC_ALPHA */
        xf_emit(ctx, 8, 1); /* 0000001f IBLEND_FUNC_DST_ALPHA */
        xf_emit(ctx, 1, 0); /* 00000001 tesla UNK15C4 */
        xf_emit(ctx, 1, 0); /* 00000001 */
        xf_emit(ctx, 1, 0); /* 00000001 tesla UNK1140 */
    }
    xf_emit(ctx, 1, 0x11);      /* 3f/7f DST_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 DST_LINEAR */
    xf_emit(ctx, 1, 0);     /* 00000007 PATTERN_COLOR_FORMAT */
    xf_emit(ctx, 2, 0);     /* ffffffff PATTERN_MONO_COLOR */
    xf_emit(ctx, 1, 0);     /* 00000001 PATTERN_MONO_FORMAT */
    xf_emit(ctx, 2, 0);     /* ffffffff PATTERN_MONO_BITMAP */
    xf_emit(ctx, 1, 0);     /* 00000003 PATTERN_SELECT */
    xf_emit(ctx, 1, 0);     /* 000000ff ROP */
    xf_emit(ctx, 1, 0);     /* ffffffff BETA1 */
    xf_emit(ctx, 1, 0);     /* ffffffff BETA4 */
    xf_emit(ctx, 1, 0);     /* 00000007 OPERATION */
    xf_emit(ctx, 0x50, 0);      /* 10x ffffff, ffffff, ffffff, ffffff, 3 PATTERN */
}

static void
nv50_graph_construct_xfer_unk84xx(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int magic3;
    switch (device->chipset) {
    case 0x50:
        magic3 = 0x1000;
        break;
    case 0x86:
    case 0x98:
    case 0xa8:
    case 0xaa:
    case 0xac:
    case 0xaf:
        magic3 = 0x1e00;
        break;
    default:
        magic3 = 0;
    }
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 4);     /* 7f/ff[NVA0+] VP_REG_ALLOC_RESULT */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 0);     /* 111/113[NVA0+] */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 0x1f, 0);  /* ffffffff */
    else if (device->chipset >= 0xa0)
        xf_emit(ctx, 0x0f, 0);  /* ffffffff */
    else
        xf_emit(ctx, 0x10, 0);  /* fffffff VP_RESULT_MAP_1 up */
    xf_emit(ctx, 2, 0);     /* f/1f[NVA3], fffffff/ffffffff[NVA0+] */
    xf_emit(ctx, 1, 4);     /* 7f/ff VP_REG_ALLOC_RESULT */
    xf_emit(ctx, 1, 4);     /* 7f/ff VP_RESULT_MAP_SIZE */
    if (device->chipset >= 0xa0)
        xf_emit(ctx, 1, 0x03020100);    /* ffffffff */
    else
        xf_emit(ctx, 1, 0x00608080);    /* fffffff VP_RESULT_MAP_0 */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 2, 0);     /* 111/113, 7f/ff */
    xf_emit(ctx, 1, 4);     /* 7f/ff VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_REG_ALLOC_RESULT */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0x80);      /* 0000ffff GP_VERTEX_OUTPUT_COUNT */
    if (magic3)
        xf_emit(ctx, 1, magic3);    /* 00007fff tesla UNK141C */
    xf_emit(ctx, 1, 4);     /* 7f/ff VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 0);     /* 111/113 */
    xf_emit(ctx, 0x1f, 0);      /* ffffffff GP_RESULT_MAP_1 up */
    xf_emit(ctx, 1, 0);     /* 0000001f */
    xf_emit(ctx, 1, 0);     /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_REG_ALLOC_RESULT */
    xf_emit(ctx, 1, 0x80);      /* 0000ffff GP_VERTEX_OUTPUT_COUNT */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0x03020100);    /* ffffffff GP_RESULT_MAP_0 */
    xf_emit(ctx, 1, 3);     /* 00000003 GP_OUTPUT_PRIMITIVE_TYPE */
    if (magic3)
        xf_emit(ctx, 1, magic3);    /* 7fff tesla UNK141C */
    xf_emit(ctx, 1, 4);     /* 7f/ff VP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 0);     /* 00000001 PROVOKING_VERTEX_LAST */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 0);     /* 111/113 */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 3);     /* 00000003 GP_OUTPUT_PRIMITIVE_TYPE */
    xf_emit(ctx, 1, 0);     /* 00000001 PROVOKING_VERTEX_LAST */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 0);     /* 00000003 tesla UNK13A0 */
    xf_emit(ctx, 1, 4);     /* 7f/ff VP_REG_ALLOC_RESULT */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
    xf_emit(ctx, 1, 0);     /* 111/113 */
    if (device->chipset == 0x94 || device->chipset == 0x96)
        xf_emit(ctx, 0x1020, 0);    /* 4 x (0x400 x 0xffffffff, ff, 0, 0, 0, 4 x ffffffff) */
    else if (device->chipset < 0xa0)
        xf_emit(ctx, 0xa20, 0); /* 4 x (0x280 x 0xffffffff, ff, 0, 0, 0, 4 x ffffffff) */
    else if (!IS_NVA3F(device->chipset))
        xf_emit(ctx, 0x210, 0); /* ffffffff */
    else
        xf_emit(ctx, 0x410, 0); /* ffffffff */
    xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
    xf_emit(ctx, 1, 4);     /* 000000ff GP_RESULT_MAP_SIZE */
    xf_emit(ctx, 1, 3);     /* 00000003 GP_OUTPUT_PRIMITIVE_TYPE */
    xf_emit(ctx, 1, 0);     /* 00000001 PROVOKING_VERTEX_LAST */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
}

static void
nv50_graph_construct_xfer_tprop(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int magic1, magic2;
    if (device->chipset == 0x50) {
        magic1 = 0x3ff;
        magic2 = 0x00003e60;
    } else if (!IS_NVA3F(device->chipset)) {
        magic1 = 0x7ff;
        magic2 = 0x001ffe67;
    } else {
        magic1 = 0x7ff;
        magic2 = 0x00087e67;
    }
    xf_emit(ctx, 1, 0);     /* 00000007 ALPHA_TEST_FUNC */
    xf_emit(ctx, 1, 0);     /* ffffffff ALPHA_TEST_REF */
    xf_emit(ctx, 1, 0);     /* 00000001 ALPHA_TEST_ENABLE */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 1); /* 0000000f UNK16A0 */
    xf_emit(ctx, 1, 0);     /* 7/f MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_BACK_MASK */
    xf_emit(ctx, 3, 0);     /* 00000007 STENCIL_BACK_OP_FAIL, ZFAIL, ZPASS */
    xf_emit(ctx, 4, 0);     /* ffffffff BLEND_COLOR */
    xf_emit(ctx, 1, 0);     /* 00000001 UNK19C0 */
    xf_emit(ctx, 1, 0);     /* 00000001 UNK0FDC */
    xf_emit(ctx, 1, 0xf);       /* 0000000f COLOR_MASK */
    xf_emit(ctx, 7, 0);     /* 0000000f COLOR_MASK */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 LOGIC_OP_ENABLE */
    xf_emit(ctx, 1, 0);     /* ff[NV50]/3ff[NV84+] */
    xf_emit(ctx, 1, 4);     /* 00000007 FP_CONTROL */
    xf_emit(ctx, 4, 0xffff);    /* 0000ffff MSAA_MASK */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_MASK */
    xf_emit(ctx, 3, 0);     /* 00000007 STENCIL_FRONT_OP_FAIL, ZFAIL, ZPASS */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_BACK_ENABLE */
    xf_emit(ctx, 2, 0);     /* 00007fff WINDOW_OFFSET_XY */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK19CC */
    xf_emit(ctx, 1, 0);     /* 7 */
    xf_emit(ctx, 1, 0);     /* 00000001 SAMPLECNT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffffffff COLOR_KEY */
    xf_emit(ctx, 1, 0);     /* 00000001 COLOR_KEY_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000007 COLOR_KEY_FORMAT */
    xf_emit(ctx, 2, 0);     /* ffffffff SIFC_BITMAP_COLOR */
    xf_emit(ctx, 1, 1);     /* 00000001 SIFC_BITMAP_WRITE_BIT0_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000007 ALPHA_TEST_FUNC */
    xf_emit(ctx, 1, 0);     /* 00000001 ALPHA_TEST_ENABLE */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 1, 3); /* 00000003 tesla UNK16B4 */
        xf_emit(ctx, 1, 0); /* 00000003 */
        xf_emit(ctx, 1, 0); /* 00000003 tesla UNK1298 */
    } else if (device->chipset >= 0xa0) {
        xf_emit(ctx, 1, 1); /* 00000001 tesla UNK16B4 */
        xf_emit(ctx, 1, 0); /* 00000003 */
    } else {
        xf_emit(ctx, 1, 0); /* 00000003 MULTISAMPLE_CTRL */
    }
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 8, 0);     /* 00000001 BLEND_ENABLE */
    xf_emit(ctx, 1, 1);     /* 0000001f BLEND_FUNC_DST_ALPHA */
    xf_emit(ctx, 1, 1);     /* 00000007 BLEND_EQUATION_ALPHA */
    xf_emit(ctx, 1, 2);     /* 0000001f BLEND_FUNC_SRC_ALPHA */
    xf_emit(ctx, 1, 1);     /* 0000001f BLEND_FUNC_DST_RGB */
    xf_emit(ctx, 1, 1);     /* 00000007 BLEND_EQUATION_RGB */
    xf_emit(ctx, 1, 2);     /* 0000001f BLEND_FUNC_SRC_RGB */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 1, 0); /* 00000001 UNK12E4 */
        xf_emit(ctx, 8, 1); /* 00000007 IBLEND_EQUATION_RGB */
        xf_emit(ctx, 8, 1); /* 00000007 IBLEND_EQUATION_ALPHA */
        xf_emit(ctx, 8, 1); /* 00000001 IBLEND_UNK00 */
        xf_emit(ctx, 8, 2); /* 0000001f IBLEND_SRC_RGB */
        xf_emit(ctx, 8, 1); /* 0000001f IBLEND_DST_RGB */
        xf_emit(ctx, 8, 2); /* 0000001f IBLEND_SRC_ALPHA */
        xf_emit(ctx, 8, 1); /* 0000001f IBLEND_DST_ALPHA */
        xf_emit(ctx, 1, 0); /* 00000001 UNK1140 */
    }
    xf_emit(ctx, 1, 1);     /* 00000001 UNK133C */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 7, 0);     /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 1, 0x0fac6881);    /* 0fffffff RT_CONTROL */
    xf_emit(ctx, 1, 0);     /* 00000001 LOGIC_OP_ENABLE */
    xf_emit(ctx, 1, 0);     /* ff/3ff */
    xf_emit(ctx, 1, 4);     /* 00000007 FP_CONTROL */
    xf_emit(ctx, 1, 0);     /* 00000003 UNK0F90 */
    xf_emit(ctx, 1, 0);     /* 00000001 FRAMEBUFFER_SRGB */
    xf_emit(ctx, 1, 0);     /* 7 */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f DST_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 DST_LINEAR */
    xf_emit(ctx, 1, 0);     /* 00000007 OPERATION */
    xf_emit(ctx, 1, 0xcf);      /* 000000ff SIFC_FORMAT */
    xf_emit(ctx, 1, 0xcf);      /* 000000ff DRAW_COLOR_FORMAT */
    xf_emit(ctx, 1, 0xcf);      /* 000000ff SRC_FORMAT */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
    xf_emit(ctx, 1, 0);     /* 7/f[NVA3] MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 8, 0);     /* 00000001 BLEND_ENABLE */
    xf_emit(ctx, 1, 1);     /* 0000001f BLEND_FUNC_DST_ALPHA */
    xf_emit(ctx, 1, 1);     /* 00000007 BLEND_EQUATION_ALPHA */
    xf_emit(ctx, 1, 2);     /* 0000001f BLEND_FUNC_SRC_ALPHA */
    xf_emit(ctx, 1, 1);     /* 0000001f BLEND_FUNC_DST_RGB */
    xf_emit(ctx, 1, 1);     /* 00000007 BLEND_EQUATION_RGB */
    xf_emit(ctx, 1, 2);     /* 0000001f BLEND_FUNC_SRC_RGB */
    xf_emit(ctx, 1, 1);     /* 00000001 UNK133C */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 8, 1);     /* 00000001 UNK19E0 */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 7, 0);     /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 1, 0x0fac6881);    /* 0fffffff RT_CONTROL */
    xf_emit(ctx, 1, 0xf);       /* 0000000f COLOR_MASK */
    xf_emit(ctx, 7, 0);     /* 0000000f COLOR_MASK */
    xf_emit(ctx, 1, magic2);    /* 001fffff tesla UNK0F78 */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_BOUNDS_EN */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f DST_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 DST_LINEAR */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
    if (device->chipset == 0x50)
        xf_emit(ctx, 1, 0); /* ff */
    else
        xf_emit(ctx, 3, 0); /* 1, 7, 3ff */
    xf_emit(ctx, 1, 4);     /* 00000007 FP_CONTROL */
    xf_emit(ctx, 1, 0);     /* 00000003 UNK0F90 */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000007 */
    xf_emit(ctx, 1, 0);     /* 00000001 SAMPLECNT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
    xf_emit(ctx, 1, 0);     /* 7/f MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 7, 0);     /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 1, 0x0fac6881);    /* 0fffffff RT_CONTROL */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_BOUNDS_EN */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f DST_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 DST_LINEAR */
    xf_emit(ctx, 1, 0);     /* 000fffff BLIT_DU_DX_FRACT */
    xf_emit(ctx, 1, 1);     /* 0001ffff BLIT_DU_DX_INT */
    xf_emit(ctx, 1, 0);     /* 000fffff BLIT_DV_DY_FRACT */
    xf_emit(ctx, 1, 1);     /* 0001ffff BLIT_DV_DY_INT */
    xf_emit(ctx, 1, 0);     /* ff/3ff */
    xf_emit(ctx, 1, magic1);    /* 3ff/7ff tesla UNK0D68 */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK15B4 */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000007 */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
    xf_emit(ctx, 8, 0);     /* 0000ffff DMA_COLOR */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_GLOBAL */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_LOCAL */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_STACK */
    xf_emit(ctx, 1, 0);     /* ff/3ff */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_DST */
    xf_emit(ctx, 1, 0);     /* 7 */
    xf_emit(ctx, 1, 0);     /* 7/f MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 8, 0);     /* 000000ff RT_ADDRESS_HIGH */
    xf_emit(ctx, 8, 0);     /* ffffffff RT_LAYER_STRIDE */
    xf_emit(ctx, 8, 0);     /* ffffffff RT_ADDRESS_LOW */
    xf_emit(ctx, 8, 8);     /* 0000007f RT_TILE_MODE */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 7, 0);     /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 1, 0x0fac6881);    /* 0fffffff RT_CONTROL */
    xf_emit(ctx, 8, 0x400);     /* 0fffffff RT_HORIZ */
    xf_emit(ctx, 8, 0x300);     /* 0000ffff RT_VERT */
    xf_emit(ctx, 1, 1);     /* 00001fff RT_ARRAY_MODE */
    xf_emit(ctx, 1, 0xf);       /* 0000000f COLOR_MASK */
    xf_emit(ctx, 7, 0);     /* 0000000f COLOR_MASK */
    xf_emit(ctx, 1, 0x20);      /* 00000fff DST_TILE_MODE */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f DST_FORMAT */
    xf_emit(ctx, 1, 0x100);     /* 0001ffff DST_HEIGHT */
    xf_emit(ctx, 1, 0);     /* 000007ff DST_LAYER */
    xf_emit(ctx, 1, 1);     /* 00000001 DST_LINEAR */
    xf_emit(ctx, 1, 0);     /* ffffffff DST_ADDRESS_LOW */
    xf_emit(ctx, 1, 0);     /* 000000ff DST_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0x40);      /* 0007ffff DST_PITCH */
    xf_emit(ctx, 1, 0x100);     /* 0001ffff DST_WIDTH */
    xf_emit(ctx, 1, 0);     /* 0000ffff */
    xf_emit(ctx, 1, 3);     /* 00000003 tesla UNK15AC */
    xf_emit(ctx, 1, 0);     /* ff/3ff */
    xf_emit(ctx, 1, 0);     /* 0001ffff GP_BUILTIN_RESULT_EN */
    xf_emit(ctx, 1, 0);     /* 00000003 UNK0F90 */
    xf_emit(ctx, 1, 0);     /* 00000007 */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
    xf_emit(ctx, 1, magic2);    /* 001fffff tesla UNK0F78 */
    xf_emit(ctx, 1, 0);     /* 7/f MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 1, 2);     /* 00000003 tesla UNK143C */
    xf_emit(ctx, 1, 0x0fac6881);    /* 0fffffff RT_CONTROL */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_ZETA */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_BOUNDS_EN */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    xf_emit(ctx, 2, 0);     /* ffff, ff/3ff */
    xf_emit(ctx, 1, 0);     /* 0001ffff GP_BUILTIN_RESULT_EN */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 000000ff STENCIL_FRONT_MASK */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK15B4 */
    xf_emit(ctx, 1, 0);     /* 00000007 */
    xf_emit(ctx, 1, 0);     /* ffffffff ZETA_LAYER_STRIDE */
    xf_emit(ctx, 1, 0);     /* 000000ff ZETA_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);     /* ffffffff ZETA_ADDRESS_LOW */
    xf_emit(ctx, 1, 4);     /* 00000007 ZETA_TILE_MODE */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    xf_emit(ctx, 1, 0x400);     /* 0fffffff ZETA_HORIZ */
    xf_emit(ctx, 1, 0x300);     /* 0000ffff ZETA_VERT */
    xf_emit(ctx, 1, 0x1001);    /* 00001fff ZETA_ARRAY_MODE */
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
    xf_emit(ctx, 1, 0);     /* 7/f MULTISAMPLE_SAMPLES_LOG2 */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 0); /* 00000001 */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 7, 0);     /* 3f/7f RT_FORMAT */
    xf_emit(ctx, 1, 0x0fac6881);    /* 0fffffff RT_CONTROL */
    xf_emit(ctx, 1, 0xf);       /* 0000000f COLOR_MASK */
    xf_emit(ctx, 7, 0);     /* 0000000f COLOR_MASK */
    xf_emit(ctx, 1, 0);     /* ff/3ff */
    xf_emit(ctx, 8, 0);     /* 00000001 BLEND_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000003 UNK0F90 */
    xf_emit(ctx, 1, 0);     /* 00000001 FRAMEBUFFER_SRGB */
    xf_emit(ctx, 1, 0);     /* 7 */
    xf_emit(ctx, 1, 0);     /* 00000001 LOGIC_OP_ENABLE */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 1, 0); /* 00000001 UNK1140 */
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
    }
    xf_emit(ctx, 1, 0);     /* 7/f MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000001 UNK1534 */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    if (device->chipset >= 0xa0)
        xf_emit(ctx, 1, 0x0fac6881);    /* fffffff */
    xf_emit(ctx, 1, magic2);    /* 001fffff tesla UNK0F78 */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_BOUNDS_EN */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE_ENABLE */
    xf_emit(ctx, 1, 0x11);      /* 3f/7f DST_FORMAT */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK0FB0 */
    xf_emit(ctx, 1, 0);     /* ff/3ff */
    xf_emit(ctx, 1, 4);     /* 00000007 FP_CONTROL */
    xf_emit(ctx, 1, 0);     /* 00000001 STENCIL_FRONT_ENABLE */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK15B4 */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK19CC */
    xf_emit(ctx, 1, 0);     /* 00000007 */
    xf_emit(ctx, 1, 0);     /* 00000001 SAMPLECNT_ENABLE */
    xf_emit(ctx, 1, 0);     /* 0000000f ZETA_FORMAT */
    xf_emit(ctx, 1, 1);     /* 00000001 ZETA_ENABLE */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
        xf_emit(ctx, 1, 0); /* 0000000f tesla UNK15C8 */
    }
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A3C */
    if (device->chipset >= 0xa0) {
        xf_emit(ctx, 3, 0);     /* 7/f, 1, ffff0ff3 */
        xf_emit(ctx, 1, 0xfac6881); /* fffffff */
        xf_emit(ctx, 4, 0);     /* 1, 1, 1, 3ff */
        xf_emit(ctx, 1, 4);     /* 7 */
        xf_emit(ctx, 1, 0);     /* 1 */
        xf_emit(ctx, 2, 1);     /* 1 */
        xf_emit(ctx, 2, 0);     /* 7, f */
        xf_emit(ctx, 1, 1);     /* 1 */
        xf_emit(ctx, 1, 0);     /* 7/f */
        if (IS_NVA3F(device->chipset))
            xf_emit(ctx, 0x9, 0);   /* 1 */
        else
            xf_emit(ctx, 0x8, 0);   /* 1 */
        xf_emit(ctx, 1, 0);     /* ffff0ff3 */
        xf_emit(ctx, 8, 1);     /* 1 */
        xf_emit(ctx, 1, 0x11);      /* 7f */
        xf_emit(ctx, 7, 0);     /* 7f */
        xf_emit(ctx, 1, 0xfac6881); /* fffffff */
        xf_emit(ctx, 1, 0xf);       /* f */
        xf_emit(ctx, 7, 0);     /* f */
        xf_emit(ctx, 1, 0x11);      /* 7f */
        xf_emit(ctx, 1, 1);     /* 1 */
        xf_emit(ctx, 5, 0);     /* 1, 7, 3ff, 3, 7 */
        if (IS_NVA3F(device->chipset)) {
            xf_emit(ctx, 1, 0); /* 00000001 UNK1140 */
            xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
        }
    }
}

static void
nv50_graph_construct_xfer_tex(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    xf_emit(ctx, 2, 0);     /* 1 LINKED_TSC. yes, 2. */
    if (device->chipset != 0x50)
        xf_emit(ctx, 1, 0); /* 3 */
    xf_emit(ctx, 1, 1);     /* 1ffff BLIT_DU_DX_INT */
    xf_emit(ctx, 1, 0);     /* fffff BLIT_DU_DX_FRACT */
    xf_emit(ctx, 1, 1);     /* 1ffff BLIT_DV_DY_INT */
    xf_emit(ctx, 1, 0);     /* fffff BLIT_DV_DY_FRACT */
    if (device->chipset == 0x50)
        xf_emit(ctx, 1, 0); /* 3 BLIT_CONTROL */
    else
        xf_emit(ctx, 2, 0); /* 3ff, 1 */
    xf_emit(ctx, 1, 0x2a712488);    /* ffffffff SRC_TIC_0 */
    xf_emit(ctx, 1, 0);     /* ffffffff SRC_TIC_1 */
    xf_emit(ctx, 1, 0x4085c000);    /* ffffffff SRC_TIC_2 */
    xf_emit(ctx, 1, 0x40);      /* ffffffff SRC_TIC_3 */
    xf_emit(ctx, 1, 0x100);     /* ffffffff SRC_TIC_4 */
    xf_emit(ctx, 1, 0x10100);   /* ffffffff SRC_TIC_5 */
    xf_emit(ctx, 1, 0x02800000);    /* ffffffff SRC_TIC_6 */
    xf_emit(ctx, 1, 0);     /* ffffffff SRC_TIC_7 */
    if (device->chipset == 0x50) {
        xf_emit(ctx, 1, 0); /* 00000001 turing UNK358 */
        xf_emit(ctx, 1, 0); /* ffffffff tesla UNK1A34? */
        xf_emit(ctx, 1, 0); /* 00000003 turing UNK37C tesla UNK1690 */
        xf_emit(ctx, 1, 0); /* 00000003 BLIT_CONTROL */
        xf_emit(ctx, 1, 0); /* 00000001 turing UNK32C tesla UNK0F94 */
    } else if (!IS_NVAAF(device->chipset)) {
        xf_emit(ctx, 1, 0); /* ffffffff tesla UNK1A34? */
        xf_emit(ctx, 1, 0); /* 00000003 */
        xf_emit(ctx, 1, 0); /* 000003ff */
        xf_emit(ctx, 1, 0); /* 00000003 */
        xf_emit(ctx, 1, 0); /* 000003ff */
        xf_emit(ctx, 1, 0); /* 00000003 tesla UNK1664 / turing UNK03E8 */
        xf_emit(ctx, 1, 0); /* 00000003 */
        xf_emit(ctx, 1, 0); /* 000003ff */
    } else {
        xf_emit(ctx, 0x6, 0);
    }
    xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A34 */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_TEXTURE */
    xf_emit(ctx, 1, 0);     /* 0000ffff DMA_SRC */
}

static void
nv50_graph_construct_xfer_unk8cxx(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    xf_emit(ctx, 1, 0);     /* 00000001 UNK1534 */
    xf_emit(ctx, 1, 0);     /* 7/f MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 2, 0);     /* 7, ffff0ff3 */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE */
    xf_emit(ctx, 1, 0x04e3bfdf);    /* ffffffff UNK0D64 */
    xf_emit(ctx, 1, 0x04e3bfdf);    /* ffffffff UNK0DF4 */
    xf_emit(ctx, 1, 1);     /* 00000001 UNK15B4 */
    xf_emit(ctx, 1, 0);     /* 00000001 LINE_STIPPLE_ENABLE */
    xf_emit(ctx, 1, 0x00ffff00);    /* 00ffffff LINE_STIPPLE_PATTERN */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK0F98 */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 1); /* 0000001f tesla UNK169C */
    xf_emit(ctx, 1, 0);     /* 00000003 tesla UNK1668 */
    xf_emit(ctx, 1, 0);     /* 00000001 LINE_STIPPLE_ENABLE */
    xf_emit(ctx, 1, 0x00ffff00);    /* 00ffffff LINE_STIPPLE_PATTERN */
    xf_emit(ctx, 1, 0);     /* 00000001 POLYGON_SMOOTH_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 UNK1534 */
    xf_emit(ctx, 1, 0);     /* 7/f MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 1, 0);     /* 00000001 tesla UNK1658 */
    xf_emit(ctx, 1, 0);     /* 00000001 LINE_SMOOTH_ENABLE */
    xf_emit(ctx, 1, 0);     /* ffff0ff3 */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_TEST_ENABLE */
    xf_emit(ctx, 1, 0);     /* 00000001 DEPTH_WRITE */
    xf_emit(ctx, 1, 1);     /* 00000001 UNK15B4 */
    xf_emit(ctx, 1, 0);     /* 00000001 POINT_SPRITE_ENABLE */
    xf_emit(ctx, 1, 1);     /* 00000001 tesla UNK165C */
    xf_emit(ctx, 1, 0x30201000);    /* ffffffff tesla UNK1670 */
    xf_emit(ctx, 1, 0x70605040);    /* ffffffff tesla UNK1670 */
    xf_emit(ctx, 1, 0xb8a89888);    /* ffffffff tesla UNK1670 */
    xf_emit(ctx, 1, 0xf8e8d8c8);    /* ffffffff tesla UNK1670 */
    xf_emit(ctx, 1, 0);     /* 00000001 VERTEX_TWO_SIDE_ENABLE */
    xf_emit(ctx, 1, 0x1a);      /* 0000001f POLYGON_MODE */
}

static void
nv50_graph_construct_xfer_tp(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    if (device->chipset < 0xa0) {
        nv50_graph_construct_xfer_unk84xx(ctx);
        nv50_graph_construct_xfer_tprop(ctx);
        nv50_graph_construct_xfer_tex(ctx);
        nv50_graph_construct_xfer_unk8cxx(ctx);
    } else {
        nv50_graph_construct_xfer_tex(ctx);
        nv50_graph_construct_xfer_tprop(ctx);
        nv50_graph_construct_xfer_unk8cxx(ctx);
        nv50_graph_construct_xfer_unk84xx(ctx);
    }
}

static void
nv50_graph_construct_xfer_mpc(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int i, mpcnt = 2;
    switch (device->chipset) {
        case 0x98:
        case 0xaa:
            mpcnt = 1;
            break;
        case 0x50:
        case 0x84:
        case 0x86:
        case 0x92:
        case 0x94:
        case 0x96:
        case 0xa8:
        case 0xac:
            mpcnt = 2;
            break;
        case 0xa0:
        case 0xa3:
        case 0xa5:
        case 0xaf:
            mpcnt = 3;
            break;
    }
    for (i = 0; i < mpcnt; i++) {
        xf_emit(ctx, 1, 0);     /* ff */
        xf_emit(ctx, 1, 0x80);      /* ffffffff tesla UNK1404 */
        xf_emit(ctx, 1, 0x80007004);    /* ffffffff tesla UNK12B0 */
        xf_emit(ctx, 1, 0x04000400);    /* ffffffff */
        if (device->chipset >= 0xa0)
            xf_emit(ctx, 1, 0xc0);  /* 00007fff tesla UNK152C */
        xf_emit(ctx, 1, 0x1000);    /* 0000ffff tesla UNK0D60 */
        xf_emit(ctx, 1, 0);     /* ff/3ff */
        xf_emit(ctx, 1, 0);     /* ffffffff tesla UNK1A30 */
        if (device->chipset == 0x86 || device->chipset == 0x98 || device->chipset == 0xa8 || IS_NVAAF(device->chipset)) {
            xf_emit(ctx, 1, 0xe00);     /* 7fff */
            xf_emit(ctx, 1, 0x1e00);    /* 7fff */
        }
        xf_emit(ctx, 1, 1);     /* 000000ff VP_REG_ALLOC_TEMP */
        xf_emit(ctx, 1, 0);     /* 00000001 LINKED_TSC */
        xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
        if (device->chipset == 0x50)
            xf_emit(ctx, 2, 0x1000);    /* 7fff tesla UNK141C */
        xf_emit(ctx, 1, 1);     /* 000000ff GP_REG_ALLOC_TEMP */
        xf_emit(ctx, 1, 0);     /* 00000001 GP_ENABLE */
        xf_emit(ctx, 1, 4);     /* 000000ff FP_REG_ALLOC_TEMP */
        xf_emit(ctx, 1, 2);     /* 00000003 REG_MODE */
        if (IS_NVAAF(device->chipset))
            xf_emit(ctx, 0xb, 0);   /* RO */
        else if (device->chipset >= 0xa0)
            xf_emit(ctx, 0xc, 0);   /* RO */
        else
            xf_emit(ctx, 0xa, 0);   /* RO */
    }
    xf_emit(ctx, 1, 0x08100c12);        /* 1fffffff FP_INTERPOLANT_CTRL */
    xf_emit(ctx, 1, 0);         /* ff/3ff */
    if (device->chipset >= 0xa0) {
        xf_emit(ctx, 1, 0x1fe21);   /* 0003ffff tesla UNK0FAC */
    }
    xf_emit(ctx, 3, 0);         /* 7fff, 0, 0 */
    xf_emit(ctx, 1, 0);         /* 00000001 tesla UNK1534 */
    xf_emit(ctx, 1, 0);         /* 7/f MULTISAMPLE_SAMPLES_LOG2 */
    xf_emit(ctx, 4, 0xffff);        /* 0000ffff MSAA_MASK */
    xf_emit(ctx, 1, 1);         /* 00000001 LANES32 */
    xf_emit(ctx, 1, 0x10001);       /* 00ffffff BLOCK_ALLOC */
    xf_emit(ctx, 1, 0x10001);       /* ffffffff BLOCKDIM_XY */
    xf_emit(ctx, 1, 1);         /* 0000ffff BLOCKDIM_Z */
    xf_emit(ctx, 1, 0);         /* ffffffff SHARED_SIZE */
    xf_emit(ctx, 1, 0x1fe21);       /* 1ffff/3ffff[NVA0+] tesla UNk0FAC */
    xf_emit(ctx, 1, 0);         /* ffffffff tesla UNK1A34 */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 1);     /* 0000001f tesla UNK169C */
    xf_emit(ctx, 1, 0);         /* ff/3ff */
    xf_emit(ctx, 1, 0);         /* 1 LINKED_TSC */
    xf_emit(ctx, 1, 0);         /* ff FP_ADDRESS_HIGH */
    xf_emit(ctx, 1, 0);         /* ffffffff FP_ADDRESS_LOW */
    xf_emit(ctx, 1, 0x08100c12);        /* 1fffffff FP_INTERPOLANT_CTRL */
    xf_emit(ctx, 1, 4);         /* 00000007 FP_CONTROL */
    xf_emit(ctx, 1, 0);         /* 000000ff FRAG_COLOR_CLAMP_EN */
    xf_emit(ctx, 1, 2);         /* 00000003 REG_MODE */
    xf_emit(ctx, 1, 0x11);          /* 0000007f RT_FORMAT */
    xf_emit(ctx, 7, 0);         /* 0000007f RT_FORMAT */
    xf_emit(ctx, 1, 0);         /* 00000007 */
    xf_emit(ctx, 1, 0xfac6881);     /* 0fffffff RT_CONTROL */
    xf_emit(ctx, 1, 0);         /* 00000003 MULTISAMPLE_CTRL */
    if (IS_NVA3F(device->chipset))
        xf_emit(ctx, 1, 3);     /* 00000003 tesla UNK16B4 */
    xf_emit(ctx, 1, 0);         /* 00000001 ALPHA_TEST_ENABLE */
    xf_emit(ctx, 1, 0);         /* 00000007 ALPHA_TEST_FUNC */
    xf_emit(ctx, 1, 0);         /* 00000001 FRAMEBUFFER_SRGB */
    xf_emit(ctx, 1, 4);         /* ffffffff tesla UNK1400 */
    xf_emit(ctx, 8, 0);         /* 00000001 BLEND_ENABLE */
    xf_emit(ctx, 1, 0);         /* 00000001 LOGIC_OP_ENABLE */
    xf_emit(ctx, 1, 2);         /* 0000001f BLEND_FUNC_SRC_RGB */
    xf_emit(ctx, 1, 1);         /* 0000001f BLEND_FUNC_DST_RGB */
    xf_emit(ctx, 1, 1);         /* 00000007 BLEND_EQUATION_RGB */
    xf_emit(ctx, 1, 2);         /* 0000001f BLEND_FUNC_SRC_ALPHA */
    xf_emit(ctx, 1, 1);         /* 0000001f BLEND_FUNC_DST_ALPHA */
    xf_emit(ctx, 1, 1);         /* 00000007 BLEND_EQUATION_ALPHA */
    xf_emit(ctx, 1, 1);         /* 00000001 UNK133C */
    if (IS_NVA3F(device->chipset)) {
        xf_emit(ctx, 1, 0);     /* 00000001 UNK12E4 */
        xf_emit(ctx, 8, 2);     /* 0000001f IBLEND_FUNC_SRC_RGB */
        xf_emit(ctx, 8, 1);     /* 0000001f IBLEND_FUNC_DST_RGB */
        xf_emit(ctx, 8, 1);     /* 00000007 IBLEND_EQUATION_RGB */
        xf_emit(ctx, 8, 2);     /* 0000001f IBLEND_FUNC_SRC_ALPHA */
        xf_emit(ctx, 8, 1);     /* 0000001f IBLEND_FUNC_DST_ALPHA */
        xf_emit(ctx, 8, 1);     /* 00000007 IBLEND_EQUATION_ALPHA */
        xf_emit(ctx, 8, 1);     /* 00000001 IBLEND_UNK00 */
        xf_emit(ctx, 1, 0);     /* 00000003 tesla UNK1928 */
        xf_emit(ctx, 1, 0);     /* 00000001 UNK1140 */
    }
    xf_emit(ctx, 1, 0);         /* 00000003 tesla UNK0F90 */
    xf_emit(ctx, 1, 4);         /* 000000ff FP_RESULT_COUNT */
    /* XXX: demagic this part some day */
    if (device->chipset == 0x50)
        xf_emit(ctx, 0x3a0, 0);
    else if (device->chipset < 0x94)
        xf_emit(ctx, 0x3a2, 0);
    else if (device->chipset == 0x98 || device->chipset == 0xaa)
        xf_emit(ctx, 0x39f, 0);
    else
        xf_emit(ctx, 0x3a3, 0);
    xf_emit(ctx, 1, 0x11);          /* 3f/7f DST_FORMAT */
    xf_emit(ctx, 1, 0);         /* 7 OPERATION */
    xf_emit(ctx, 1, 1);         /* 1 DST_LINEAR */
    xf_emit(ctx, 0x2d, 0);
}

static void
nv50_graph_construct_xfer2(struct nouveau_grctx *ctx)
{
    struct nouveau_device *device = ctx->device;
    int i;
    u32 offset;
    u32 units = nv_rd32 (ctx->device, 0x1540);
    int size = 0;

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

    if (device->chipset < 0xa0) {
        for (i = 0; i < 8; i++) {
            ctx->ctxvals_pos = offset + i;
            /* that little bugger belongs to csched. No idea
             * what it's doing here. */
            if (i == 0)
                xf_emit(ctx, 1, 0x08100c12); /* FP_INTERPOLANT_CTRL */
            if (units & (1 << i))
                nv50_graph_construct_xfer_mpc(ctx);
            if ((ctx->ctxvals_pos-offset)/8 > size)
                size = (ctx->ctxvals_pos-offset)/8;
        }
    } else {
        /* Strand 0: TPs 0, 1 */
        ctx->ctxvals_pos = offset;
        /* that little bugger belongs to csched. No idea
         * what it's doing here. */
        xf_emit(ctx, 1, 0x08100c12); /* FP_INTERPOLANT_CTRL */
        if (units & (1 << 0))
            nv50_graph_construct_xfer_mpc(ctx);
        if (units & (1 << 1))
            nv50_graph_construct_xfer_mpc(ctx);
        if ((ctx->ctxvals_pos-offset)/8 > size)
            size = (ctx->ctxvals_pos-offset)/8;

        /* Strand 1: TPs 2, 3 */
        ctx->ctxvals_pos = offset + 1;
        if (units & (1 << 2))
            nv50_graph_construct_xfer_mpc(ctx);
        if (units & (1 << 3))
            nv50_graph_construct_xfer_mpc(ctx);
        if ((ctx->ctxvals_pos-offset)/8 > size)
            size = (ctx->ctxvals_pos-offset)/8;

        /* Strand 2: TPs 4, 5, 6 */
        ctx->ctxvals_pos = offset + 2;
        if (units & (1 << 4))
            nv50_graph_construct_xfer_mpc(ctx);
        if (units & (1 << 5))
            nv50_graph_construct_xfer_mpc(ctx);
        if (units & (1 << 6))
            nv50_graph_construct_xfer_mpc(ctx);
        if ((ctx->ctxvals_pos-offset)/8 > size)
            size = (ctx->ctxvals_pos-offset)/8;

        /* Strand 3: TPs 7, 8, 9 */
        ctx->ctxvals_pos = offset + 3;
        if (units & (1 << 7))
            nv50_graph_construct_xfer_mpc(ctx);
        if (units & (1 << 8))
            nv50_graph_construct_xfer_mpc(ctx);
        if (units & (1 << 9))
            nv50_graph_construct_xfer_mpc(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);
}