shared-core/nv10_graph.c

/* 
 * Copyright 2007 Matthieu CASTET <castet.matthieu@free.fr>
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#include "drmP.h"
#include "drm.h"
#include "nouveau_drm.h"
#include "nouveau_drv.h"


static void nv10_praph_pipe(drm_device_t *dev) {
	drm_nouveau_private_t *dev_priv = dev->dev_private;
	int i;

	nouveau_wait_for_idle(dev);
	/* XXX check haiku comments */
	NV_WRITE(NV_PGRAPH_XFMODE0, 0x10000000);
	NV_WRITE(NV_PGRAPH_XFMODE1, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x000064c0);
	for (i = 0; i < 4; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);
	for (i = 0; i < 4; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00006ab0);
	
	for (i = 0; i < 3; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00006a80);
	for (i = 0; i < 3; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00000040);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000008);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00000200);
	for (i = 0; i < 48; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	nouveau_wait_for_idle(dev);

	NV_WRITE(NV_PGRAPH_XFMODE0, 0x00000000);
	NV_WRITE(NV_PGRAPH_XFMODE1, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00006400);
	for (i = 0; i < 211; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x40000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x40000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x40000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x40000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00006800);
	for (i = 0; i < 162; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x3f800000);
	for (i = 0; i < 25; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00006c00);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0xbf800000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00007000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x7149f2ca);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x7149f2ca);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x7149f2ca);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x7149f2ca);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x7149f2ca);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x7149f2ca);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x7149f2ca);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);
	NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x7149f2ca);
	for (i = 0; i < 35; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);


	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00007400);
	for (i = 0; i < 48; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00007800);
	for (i = 0; i < 48; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00004400);
	for (i = 0; i < 32; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00000000);
	for (i = 0; i < 16; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	NV_WRITE(NV_PGRAPH_PIPE_ADDRESS, 0x00000040);
	for (i = 0; i < 4; i++)
		NV_WRITE(NV_PGRAPH_PIPE_DATA, 0x00000000);

	nouveau_wait_for_idle(dev);
}

/* TODO replace address with name
   use loops */
static int nv10_graph_ctx_regs [] = {
NV_PGRAPH_XY_LOGIC_MISC0,
NV_PGRAPH_DEBUG_4,
0x004006b0,

//NV_PGRAPH_CTX_SWITCH1, make ctx switch crash
NV_PGRAPH_CTX_SWITCH2,
NV_PGRAPH_CTX_SWITCH3,
NV_PGRAPH_CTX_SWITCH4,
NV_PGRAPH_CTX_SWITCH5,
NV_PGRAPH_CTX_CACHE1,	/* 8 values from 0x400160 to 0x40017c */
NV_PGRAPH_CTX_CACHE2,	/* 8 values from 0x400180 to 0x40019c */
NV_PGRAPH_CTX_CACHE3,	/* 8 values from 0x4001a0 to 0x4001bc */
NV_PGRAPH_CTX_CACHE4,	/* 8 values from 0x4001c0 to 0x4001dc */
NV_PGRAPH_CTX_CACHE5,	/* 8 values from 0x4001e0 to 0x4001fc */
0x00400164,
0x00400184,
0x004001a4,
0x004001c4,
0x004001e4,
0x00400168,
0x00400188,
0x004001a8,
0x004001c8,
0x004001e8,
0x0040016c,
0x0040018c,
0x004001ac,
0x004001cc,
0x004001ec,
0x00400170,
0x00400190,
0x004001b0,
0x004001d0,
0x004001f0,
0x00400174,
0x00400194,
0x004001b4,
0x004001d4,
0x004001f4,
0x00400178,
0x00400198,
0x004001b8,
0x004001d8,
0x004001f8,
0x0040017c,
0x0040019c,
0x004001bc,
0x004001dc,
0x004001fc,
NV_PGRAPH_CTX_USER,
NV_PGRAPH_DMA_START_0,
NV_PGRAPH_DMA_START_1,
NV_PGRAPH_DMA_LENGTH,
NV_PGRAPH_DMA_MISC,
NV_PGRAPH_DMA_PITCH,
NV_PGRAPH_BOFFSET0,
NV_PGRAPH_BBASE0,
NV_PGRAPH_BLIMIT0,
NV_PGRAPH_BOFFSET1,
NV_PGRAPH_BBASE1,
NV_PGRAPH_BLIMIT1,
NV_PGRAPH_BOFFSET2,
NV_PGRAPH_BBASE2,
NV_PGRAPH_BLIMIT2,
NV_PGRAPH_BOFFSET3,
NV_PGRAPH_BBASE3,
NV_PGRAPH_BLIMIT3,
NV_PGRAPH_BOFFSET4,
NV_PGRAPH_BBASE4,
NV_PGRAPH_BLIMIT4,
NV_PGRAPH_BOFFSET5,
NV_PGRAPH_BBASE5,
NV_PGRAPH_BLIMIT5,
NV_PGRAPH_BPITCH0,
NV_PGRAPH_BPITCH1,
NV_PGRAPH_BPITCH2,
NV_PGRAPH_BPITCH3,
NV_PGRAPH_BPITCH4,
NV_PGRAPH_SURFACE,
NV_PGRAPH_STATE,
NV_PGRAPH_BSWIZZLE2,
NV_PGRAPH_BSWIZZLE5,
NV_PGRAPH_BPIXEL,
NV_PGRAPH_NOTIFY,
NV_PGRAPH_PATT_COLOR0,
NV_PGRAPH_PATT_COLOR1,
NV_PGRAPH_PATT_COLORRAM, /* 64 values from 0x400900 to 0x4009fc */
0x00400904,
0x00400908,
0x0040090c,
0x00400910,
0x00400914,
0x00400918,
0x0040091c,
0x00400920,
0x00400924,
0x00400928,
0x0040092c,
0x00400930,
0x00400934,
0x00400938,
0x0040093c,
0x00400940,
0x00400944,
0x00400948,
0x0040094c,
0x00400950,
0x00400954,
0x00400958,
0x0040095c,
0x00400960,
0x00400964,
0x00400968,
0x0040096c,
0x00400970,
0x00400974,
0x00400978,
0x0040097c,
0x00400980,
0x00400984,
0x00400988,
0x0040098c,
0x00400990,
0x00400994,
0x00400998,
0x0040099c,
0x004009a0,
0x004009a4,
0x004009a8,
0x004009ac,
0x004009b0,
0x004009b4,
0x004009b8,
0x004009bc,
0x004009c0,
0x004009c4,
0x004009c8,
0x004009cc,
0x004009d0,
0x004009d4,
0x004009d8,
0x004009dc,
0x004009e0,
0x004009e4,
0x004009e8,
0x004009ec,
0x004009f0,
0x004009f4,
0x004009f8,
0x004009fc,
NV_PGRAPH_PATTERN,	/* 2 values from 0x400808 to 0x40080c */
0x0040080c,
NV_PGRAPH_PATTERN_SHAPE,
NV_PGRAPH_MONO_COLOR0,
NV_PGRAPH_ROP3,
NV_PGRAPH_CHROMA,
NV_PGRAPH_BETA_AND,
NV_PGRAPH_BETA_PREMULT,
0x00400e70,
0x00400e74,
0x00400e78,
0x00400e7c,
0x00400e80,
0x00400e84,
0x00400e88,
0x00400e8c,
0x00400ea0,
0x00400ea4,
0x00400ea8,
0x00400eac,
0x00400e90,
0x00400e94,
0x00400e98,
0x00400e9c,
NV_PGRAPH_WINDOWCLIP_HORIZONTAL,/* 8 values from 0x400f00 to 0x400f1c */
NV_PGRAPH_WINDOWCLIP_VERTICAL,	/* 8 values from 0x400f20 to 0x400f3c */
0x00400f04,
0x00400f24,
0x00400f08,
0x00400f28,
0x00400f0c,
0x00400f2c,
0x00400f10,
0x00400f30,
0x00400f14,
0x00400f34,
0x00400f18,
0x00400f38,
0x00400f1c,
0x00400f3c,
NV_PGRAPH_XFMODE0,
NV_PGRAPH_XFMODE1,
NV_PGRAPH_GLOBALSTATE0,
NV_PGRAPH_GLOBALSTATE1,
NV_PGRAPH_STORED_FMT,
NV_PGRAPH_SOURCE_COLOR,
NV_PGRAPH_ABS_X_RAM,	/* 32 values from 0x400400 to 0x40047c */
NV_PGRAPH_ABS_Y_RAM,	/* 32 values from 0x400480 to 0x4004fc */
0x00400404,
0x00400484,
0x00400408,
0x00400488,
0x0040040c,
0x0040048c,
0x00400410,
0x00400490,
0x00400414,
0x00400494,
0x00400418,
0x00400498,
0x0040041c,
0x0040049c,
0x00400420,
0x004004a0,
0x00400424,
0x004004a4,
0x00400428,
0x004004a8,
0x0040042c,
0x004004ac,
0x00400430,
0x004004b0,
0x00400434,
0x004004b4,
0x00400438,
0x004004b8,
0x0040043c,
0x004004bc,
0x00400440,
0x004004c0,
0x00400444,
0x004004c4,
0x00400448,
0x004004c8,
0x0040044c,
0x004004cc,
0x00400450,
0x004004d0,
0x00400454,
0x004004d4,
0x00400458,
0x004004d8,
0x0040045c,
0x004004dc,
0x00400460,
0x004004e0,
0x00400464,
0x004004e4,
0x00400468,
0x004004e8,
0x0040046c,
0x004004ec,
0x00400470,
0x004004f0,
0x00400474,
0x004004f4,
0x00400478,
0x004004f8,
0x0040047c,
0x004004fc,
NV_PGRAPH_ABS_UCLIP_XMIN,
NV_PGRAPH_ABS_UCLIP_XMAX,
NV_PGRAPH_ABS_UCLIP_YMIN,
NV_PGRAPH_ABS_UCLIP_YMAX,
0x00400550,
0x00400558,
0x00400554,
0x0040055c,
NV_PGRAPH_ABS_UCLIPA_XMIN,
NV_PGRAPH_ABS_UCLIPA_XMAX,
NV_PGRAPH_ABS_UCLIPA_YMIN,
NV_PGRAPH_ABS_UCLIPA_YMAX,
NV_PGRAPH_ABS_ICLIP_XMAX,
NV_PGRAPH_ABS_ICLIP_YMAX,
NV_PGRAPH_XY_LOGIC_MISC1,
NV_PGRAPH_XY_LOGIC_MISC2,
NV_PGRAPH_XY_LOGIC_MISC3,
NV_PGRAPH_CLIPX_0,
NV_PGRAPH_CLIPX_1,
NV_PGRAPH_CLIPY_0,
NV_PGRAPH_CLIPY_1,
0x00400e40,
0x00400e44,
0x00400e48,
0x00400e4c,
0x00400e50,
0x00400e54,
0x00400e58,
0x00400e5c,
0x00400e60,
0x00400e64,
0x00400e68,
0x00400e6c,
0x00400e00,
0x00400e04,
0x00400e08,
0x00400e0c,
0x00400e10,
0x00400e14,
0x00400e18,
0x00400e1c,
0x00400e20,
0x00400e24,
0x00400e28,
0x00400e2c,
0x00400e30,
0x00400e34,
0x00400e38,
0x00400e3c,
NV_PGRAPH_PASSTHRU_0,
NV_PGRAPH_PASSTHRU_1,
NV_PGRAPH_PASSTHRU_2,
NV_PGRAPH_DIMX_TEXTURE,
NV_PGRAPH_WDIMX_TEXTURE,
NV_PGRAPH_DVD_COLORFMT,
NV_PGRAPH_SCALED_FORMAT,
NV_PGRAPH_MISC24_0,
NV_PGRAPH_MISC24_1,
NV_PGRAPH_MISC24_2,
NV_PGRAPH_X_MISC,
NV_PGRAPH_Y_MISC,
NV_PGRAPH_VALID1,
NV_PGRAPH_VALID2,
0
};

static int nv17_graph_ctx_regs [] = {
0x00400eb0,
0x00400eb4,
0x00400eb8,
0x00400ebc,
0x00400ec0,
0x00400ec4,
0x00400ec8,
0x00400ecc,
0x00400ed0,
0x00400ed4,
0x00400ed8,
0x00400edc,
0x00400ee0,
0x00400a00,
0x00400a04,
0
};

void nouveau_nv10_context_switch(drm_device_t *dev)
{
	drm_nouveau_private_t *dev_priv = dev->dev_private;
	int channel, channel_old, i, j;

	channel=NV_READ(NV_PFIFO_CACH1_PSH1)&(nouveau_fifo_number(dev)-1);
	channel_old = (NV_READ(NV_PGRAPH_CTX_USER) >> 24) & (nouveau_fifo_number(dev)-1);

	DRM_INFO("NV: PGRAPH context switch interrupt channel %x -> %x\n",channel_old, channel);

	NV_WRITE(NV_PGRAPH_FIFO,0x0);
#if 0
	NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000000);
	NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000000);
	NV_WRITE(NV_PFIFO_CACHES, 0x00000000);
#endif

	// save PGRAPH context
	for (i = 0; nv10_graph_ctx_regs[i]; i++)
		dev_priv->fifos[channel_old].nv10_pgraph_ctx[i] = NV_READ(nv10_graph_ctx_regs[i]);
	if ((dev_priv->chipset==0x17)
		|| (dev_priv->chipset==0x18)
		|| (dev_priv->chipset==0x1f))
	{
		for (j = 0; nv17_graph_ctx_regs[j]; i++,j++)
			dev_priv->fifos[channel_old].nv10_pgraph_ctx[i] = NV_READ(nv17_graph_ctx_regs[j]);
	}
	
	nouveau_wait_for_idle(dev);

	NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10000000);
	NV_WRITE(NV_PGRAPH_CTX_USER, (NV_READ(NV_PGRAPH_CTX_USER) & 0xffffff) | (0x1f << 24));

	nouveau_wait_for_idle(dev);
	// restore PGRAPH context
	//XXX not working yet
#if 1
	for (i = 0; nv10_graph_ctx_regs[i]; i++)
		NV_WRITE(nv10_graph_ctx_regs[i], dev_priv->fifos[channel].nv10_pgraph_ctx[i]);
	if ((dev_priv->chipset==0x17)
		|| (dev_priv->chipset==0x18)
		|| (dev_priv->chipset==0x1f))
	{
		for (j = 0; nv17_graph_ctx_regs[j]; i++,j++)
			NV_WRITE(nv17_graph_ctx_regs[j], dev_priv->fifos[channel].nv10_pgraph_ctx[i]);
	}
	nouveau_wait_for_idle(dev);
#endif
	
	NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10010100);
	NV_WRITE(NV_PGRAPH_CTX_USER, channel << 24);
	NV_WRITE(NV_PGRAPH_FFINTFC_ST2, NV_READ(NV_PGRAPH_FFINTFC_ST2)&0xCFFFFFFF);

#if 0
	NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000001);
	NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000001);
	NV_WRITE(NV_PFIFO_CACHES, 0x00000001);
#endif
	NV_WRITE(NV_PGRAPH_FIFO,0x1);
}

int nv10_graph_context_create(drm_device_t *dev, int channel) {
	drm_nouveau_private_t *dev_priv = dev->dev_private;
	DRM_DEBUG("nv10_graph_context_create %d\n", channel);

	memset(dev_priv->fifos[channel].nv10_pgraph_ctx, 0, sizeof(dev_priv->fifos[channel].nv10_pgraph_ctx));

	//dev_priv->fifos[channel].pgraph_ctx_user = channel << 24;
	dev_priv->fifos[channel].nv10_pgraph_ctx[0] = 0x0001ffff;
	/* is it really needed ??? */
	dev_priv->fifos[channel].nv10_pgraph_ctx[1] = NV_READ(NV_PGRAPH_DEBUG_4);
	dev_priv->fifos[channel].nv10_pgraph_ctx[2] = NV_READ(0x004006b0);


	//XXX should be saved/restored for each fifo
	//we supposed here we have X fifo and only one 3D fifo.
	nv10_praph_pipe(dev);
	return 0;
}


int nv10_graph_init(drm_device_t *dev) {
	return 0;
}