Ejemplo n.º 1
0
static void
nouveau_fifo_irq_handler(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nouveau_engine *engine = &dev_priv->Engine;
	uint32_t status, reassign;

	reassign = NV_READ(NV03_PFIFO_CACHES) & 1;
	while ((status = NV_READ(NV03_PFIFO_INTR_0))) {
		uint32_t chid, get;

		NV_WRITE(NV03_PFIFO_CACHES, 0);

		chid = engine->fifo.channel_id(dev);
		get  = NV_READ(NV03_PFIFO_CACHE1_GET);

		if (status & NV_PFIFO_INTR_CACHE_ERROR) {
			uint32_t mthd, data;
			int ptr;

			ptr = get >> 2;
			if (dev_priv->card_type < NV_40) {
				mthd = NV_READ(NV04_PFIFO_CACHE1_METHOD(ptr));
				data = NV_READ(NV04_PFIFO_CACHE1_DATA(ptr));
			} else {
				mthd = NV_READ(NV40_PFIFO_CACHE1_METHOD(ptr));
				data = NV_READ(NV40_PFIFO_CACHE1_DATA(ptr));
			}

			DRM_INFO("PFIFO_CACHE_ERROR - "
				 "Ch %d/%d Mthd 0x%04x Data 0x%08x\n",
				 chid, (mthd >> 13) & 7, mthd & 0x1ffc, data);

			NV_WRITE(NV03_PFIFO_CACHE1_GET, get + 4);
			NV_WRITE(NV04_PFIFO_CACHE1_PULL0, 1);

			status &= ~NV_PFIFO_INTR_CACHE_ERROR;
			NV_WRITE(NV03_PFIFO_INTR_0, NV_PFIFO_INTR_CACHE_ERROR);
		}

		if (status & NV_PFIFO_INTR_DMA_PUSHER) {
			DRM_INFO("PFIFO_DMA_PUSHER - Ch %d\n", chid);

			status &= ~NV_PFIFO_INTR_DMA_PUSHER;
			NV_WRITE(NV03_PFIFO_INTR_0, NV_PFIFO_INTR_DMA_PUSHER);

			NV_WRITE(NV04_PFIFO_CACHE1_DMA_STATE, 0x00000000);
			if (NV_READ(NV04_PFIFO_CACHE1_DMA_PUT) != get)
				NV_WRITE(NV04_PFIFO_CACHE1_DMA_GET, get + 4);
		}

		if (status) {
			DRM_INFO("Unhandled PFIFO_INTR - 0x%08x\n", status);
			NV_WRITE(NV03_PFIFO_INTR_0, status);
			NV_WRITE(NV03_PMC_INTR_EN_0, 0);
		}

		NV_WRITE(NV03_PFIFO_CACHES, reassign);
	}
Ejemplo n.º 2
0
int
nv10_fifo_create_context(struct nouveau_channel *chan)
{
	struct drm_device *dev = chan->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	int ret;

	if ((ret = nouveau_gpuobj_new_fake(dev, NV10_RAMFC(chan->id), ~0,
						NV10_RAMFC__SIZE,
						NVOBJ_FLAG_ZERO_ALLOC |
						NVOBJ_FLAG_ZERO_FREE,
						NULL, &chan->ramfc)))
		return ret;

	/* Fill entries that are seen filled in dumps of nvidia driver just
	 * after channel's is put into DMA mode
	 */
	RAMFC_WR(DMA_PUT       , chan->pushbuf_base);
	RAMFC_WR(DMA_GET       , chan->pushbuf_base);
	RAMFC_WR(DMA_INSTANCE  , chan->pushbuf->instance >> 4);
	RAMFC_WR(DMA_FETCH     , NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
				 NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
				 NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8 |
#ifdef __BIG_ENDIAN
				 NV_PFIFO_CACHE1_BIG_ENDIAN |
#endif
				 0);

	/* enable the fifo dma operation */
	NV_WRITE(NV04_PFIFO_MODE,NV_READ(NV04_PFIFO_MODE)|(1<<chan->id));
	return 0;
}
Ejemplo n.º 3
0
static void nv20_graph_rdi(struct drm_device *dev) {
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	int i, writecount = 32;
	uint32_t rdi_index = 0x2c80000;

	if (dev_priv->chipset == 0x20) {
		rdi_index = 0x3d0000;
		writecount = 15;
	}

	NV_WRITE(NV10_PGRAPH_RDI_INDEX, rdi_index);
	for (i = 0; i < writecount; i++)
		NV_WRITE(NV10_PGRAPH_RDI_DATA, 0);

	nouveau_wait_for_idle(dev);
}
Ejemplo n.º 4
0
void
nouveau_irq_uninstall(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;

	/* Master disable */
	NV_WRITE(NV03_PMC_INTR_EN_0, 0);
}
Ejemplo n.º 5
0
int nv20_graph_save_context(struct nouveau_channel *chan)
{
	struct drm_device *dev = chan->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	uint32_t inst;

	if (!chan->ramin_grctx)
		return -EINVAL;
	inst = chan->ramin_grctx->instance >> 4;

	NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_POINTER, inst);
	NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_XFER,
		 NV20_PGRAPH_CHANNEL_CTX_XFER_SAVE);

	nouveau_wait_for_idle(dev);
	return 0;
}
Ejemplo n.º 6
0
int
nv50_mc_init(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;

	NV_WRITE(NV03_PMC_ENABLE, 0xFFFFFFFF);

	return 0;
}
Ejemplo n.º 7
0
int
nouveau_irq_postinstall(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;

	/* Master enable */
	NV_WRITE(NV03_PMC_INTR_EN_0, NV_PMC_INTR_EN_0_MASTER_ENABLE);

	return 0;
}
Ejemplo n.º 8
0
void
nv10_fifo_destroy_context(struct nouveau_channel *chan)
{
	struct drm_device *dev = chan->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;

	NV_WRITE(NV04_PFIFO_MODE, NV_READ(NV04_PFIFO_MODE)&~(1<<chan->id));

	nouveau_gpuobj_ref_del(dev, &chan->ramfc);
}
Ejemplo n.º 9
0
int
nv40_fifo_init(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	int ret;

	if ((ret = nouveau_fifo_init(dev)))
		return ret;

	NV_WRITE(NV04_PFIFO_DMA_TIMESLICE, 0x2101ffff);
	return 0;
}
Ejemplo n.º 10
0
int
nv04_fb_init(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;

	/* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows
	 * nvidia reading PFB_CFG_0, then writing back its original value.
	 * (which was 0x701114 in this case)
	 */
	NV_WRITE(NV04_PFB_CFG0, 0x1114);

	return 0;
}
Ejemplo n.º 11
0
/* first module load, setup the mmio/fb mapping */
int nouveau_firstopen(struct drm_device *dev)
{
#if defined(__powerpc__)
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct device_node *dn;
#endif
	int ret;
	/* Map any PCI resources we need on the card */
	ret = nouveau_init_card_mappings(dev);
	if (ret) return ret;

#if defined(__powerpc__)
	/* Put the card in BE mode if it's not */
	if (NV_READ(NV03_PMC_BOOT_1))
		NV_WRITE(NV03_PMC_BOOT_1,0x00000001);

	DRM_MEMORYBARRIER();
#endif

#if defined(__linux__) && defined(__powerpc__)
	/* if we have an OF card, copy vbios to RAMIN */
	dn = pci_device_to_OF_node(dev->pdev);
	if (dn)
	{
		int size;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22))
		const uint32_t *bios = of_get_property(dn, "NVDA,BMP", &size);
#else
		const uint32_t *bios = get_property(dn, "NVDA,BMP", &size);
#endif
		if (bios)
		{
			int i;
			for(i=0;i<size;i+=4)
				NV_WI32(i, bios[i/4]);
			DRM_INFO("OF bios successfully copied (%d bytes)\n",size);
		}
		else
			DRM_INFO("Unable to get the OF bios\n");
	}
	else
		DRM_INFO("Unable to get the OF node\n");
#endif
	return 0;
}
Ejemplo n.º 12
0
int
nv10_fifo_load_context(struct nouveau_channel *chan)
{
	struct drm_device *dev = chan->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	uint32_t tmp;

	NV_WRITE(NV03_PFIFO_CACHE1_PUSH1,
		 NV03_PFIFO_CACHE1_PUSH1_DMA | chan->id);

	NV_WRITE(NV04_PFIFO_CACHE1_DMA_GET          , RAMFC_RD(DMA_GET));
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUT          , RAMFC_RD(DMA_PUT));
	NV_WRITE(NV10_PFIFO_CACHE1_REF_CNT          , RAMFC_RD(REF_CNT));

	tmp = RAMFC_RD(DMA_INSTANCE);
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_INSTANCE     , tmp & 0xFFFF);
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_DCOUNT       , tmp >> 16);

	NV_WRITE(NV04_PFIFO_CACHE1_DMA_STATE        , RAMFC_RD(DMA_STATE));
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_FETCH        , RAMFC_RD(DMA_FETCH));
	NV_WRITE(NV04_PFIFO_CACHE1_ENGINE           , RAMFC_RD(ENGINE));
	NV_WRITE(NV04_PFIFO_CACHE1_PULL1            , RAMFC_RD(PULL1_ENGINE));

	if (dev_priv->chipset >= 0x17) {
		NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_VALUE,
			 RAMFC_RD(ACQUIRE_VALUE));
		NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP,
			 RAMFC_RD(ACQUIRE_TIMESTAMP));
		NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT,
			 RAMFC_RD(ACQUIRE_TIMEOUT));
		NV_WRITE(NV10_PFIFO_CACHE1_SEMAPHORE,
			 RAMFC_RD(SEMAPHORE));
		NV_WRITE(NV10_PFIFO_CACHE1_DMA_SUBROUTINE,
			 RAMFC_RD(DMA_SUBROUTINE));
	}

	/* Reset NV04_PFIFO_CACHE1_DMA_CTL_AT_INFO to INVALID */
	tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_CTL) & ~(1<<31);
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_CTL, tmp);

	return 0;
}
Ejemplo n.º 13
0
int
nv40_fifo_load_context(struct nouveau_channel *chan)
{
	struct drm_device *dev = chan->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	uint32_t tmp, tmp2;

	NV_WRITE(NV04_PFIFO_CACHE1_DMA_GET          , RAMFC_RD(DMA_GET));
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUT          , RAMFC_RD(DMA_PUT));
	NV_WRITE(NV10_PFIFO_CACHE1_REF_CNT          , RAMFC_RD(REF_CNT));
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_INSTANCE     , RAMFC_RD(DMA_INSTANCE));
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_DCOUNT       , RAMFC_RD(DMA_DCOUNT));
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_STATE        , RAMFC_RD(DMA_STATE));

	/* No idea what 0x2058 is.. */
	tmp   = RAMFC_RD(DMA_FETCH);
	tmp2  = NV_READ(0x2058) & 0xFFF;
	tmp2 |= (tmp & 0x30000000);
	NV_WRITE(0x2058, tmp2);
	tmp  &= ~0x30000000;
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_FETCH        , tmp);

	NV_WRITE(NV04_PFIFO_CACHE1_ENGINE           , RAMFC_RD(ENGINE));
	NV_WRITE(NV04_PFIFO_CACHE1_PULL1            , RAMFC_RD(PULL1_ENGINE));
	NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_VALUE    , RAMFC_RD(ACQUIRE_VALUE));
	NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP, RAMFC_RD(ACQUIRE_TIMESTAMP));
	NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT  , RAMFC_RD(ACQUIRE_TIMEOUT));
	NV_WRITE(NV10_PFIFO_CACHE1_SEMAPHORE        , RAMFC_RD(SEMAPHORE));
	NV_WRITE(NV10_PFIFO_CACHE1_DMA_SUBROUTINE   , RAMFC_RD(DMA_SUBROUTINE));
	NV_WRITE(NV40_PFIFO_GRCTX_INSTANCE          , RAMFC_RD(GRCTX_INSTANCE));
	NV_WRITE(0x32e4, RAMFC_RD(UNK_40));
	/* NVIDIA does this next line twice... */
	NV_WRITE(0x32e8, RAMFC_RD(UNK_44));
	NV_WRITE(0x2088, RAMFC_RD(UNK_4C));
	NV_WRITE(0x3300, RAMFC_RD(UNK_50));

	/* not sure what part is PUT, and which is GET.. never seen a non-zero
	 * value appear in a mmio-trace yet..
	 */
#if 0
	tmp = NV_READ(UNK_84);
	NV_WRITE(NV_PFIFO_CACHE1_GET, tmp ???);
	NV_WRITE(NV_PFIFO_CACHE1_PUT, tmp ???);
#endif

	/* Don't clobber the TIMEOUT_ENABLED flag when restoring from RAMFC */
	tmp  = NV_READ(NV04_PFIFO_DMA_TIMESLICE) & ~0x1FFFF;
	tmp |= RAMFC_RD(DMA_TIMESLICE) & 0x1FFFF;
	NV_WRITE(NV04_PFIFO_DMA_TIMESLICE, tmp);

	/* Set channel active, and in DMA mode */
	NV_WRITE(NV03_PFIFO_CACHE1_PUSH1,
		 NV03_PFIFO_CACHE1_PUSH1_DMA | chan->id);

	/* Reset DMA_CTL_AT_INFO to INVALID */
	tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_CTL) & ~(1<<31);
	NV_WRITE(NV04_PFIFO_CACHE1_DMA_CTL, tmp);

	return 0;
}
Ejemplo n.º 14
0
int nv30_graph_init(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
//	uint32_t vramsz, tmp;
	int ret, i;

	NV_WRITE(NV03_PMC_ENABLE, NV_READ(NV03_PMC_ENABLE) &
			~NV_PMC_ENABLE_PGRAPH);
	NV_WRITE(NV03_PMC_ENABLE, NV_READ(NV03_PMC_ENABLE) |
			 NV_PMC_ENABLE_PGRAPH);

	/* Create Context Pointer Table */
	dev_priv->ctx_table_size = 32 * 4;
	if ((ret = nouveau_gpuobj_new_ref(dev, NULL, NULL, 0,
					  dev_priv->ctx_table_size, 16,
					  NVOBJ_FLAG_ZERO_ALLOC,
					  &dev_priv->ctx_table)))
		return ret;

	NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_TABLE,
			dev_priv->ctx_table->instance >> 4);

	NV_WRITE(NV03_PGRAPH_INTR   , 0xFFFFFFFF);
	NV_WRITE(NV03_PGRAPH_INTR_EN, 0xFFFFFFFF);

	NV_WRITE(NV04_PGRAPH_DEBUG_0, 0xFFFFFFFF);
	NV_WRITE(NV04_PGRAPH_DEBUG_0, 0x00000000);
	NV_WRITE(NV04_PGRAPH_DEBUG_1, 0x401287c0);
	NV_WRITE(0x400890, 0x01b463ff);
	NV_WRITE(NV04_PGRAPH_DEBUG_3, 0xf2de0475);
	NV_WRITE(NV10_PGRAPH_DEBUG_4, 0x00008000);
	NV_WRITE(NV04_PGRAPH_LIMIT_VIOL_PIX, 0xf04bdff6);
	NV_WRITE(0x400B80, 0x1003d888);
	NV_WRITE(0x400B84, 0x0c000000);
	NV_WRITE(0x400098, 0x00000000);
	NV_WRITE(0x40009C, 0x0005ad00);
	NV_WRITE(0x400B88, 0x62ff00ff); // suspiciously like PGRAPH_DEBUG_2
	NV_WRITE(0x4000a0, 0x00000000);
	NV_WRITE(0x4000a4, 0x00000008);
	NV_WRITE(0x4008a8, 0xb784a400);
	NV_WRITE(0x400ba0, 0x002f8685);
	NV_WRITE(0x400ba4, 0x00231f3f);
	NV_WRITE(0x4008a4, 0x40000020);

	if (dev_priv->chipset == 0x34) {
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA0004);
		NV_WRITE(NV10_PGRAPH_RDI_DATA , 0x00200201);
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA0008);
		NV_WRITE(NV10_PGRAPH_RDI_DATA , 0x00000008);
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA0000);
		NV_WRITE(NV10_PGRAPH_RDI_DATA , 0x00000032);
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00E00004);
		NV_WRITE(NV10_PGRAPH_RDI_DATA , 0x00000002);
	}

	NV_WRITE(0x4000c0, 0x00000016);

	/* copy tile info from PFB */
	for (i = 0; i < NV10_PFB_TILE__SIZE; i++) {
		NV_WRITE(0x00400904 + i*0x10, NV_READ(NV10_PFB_TLIMIT(i)));
			/* which is NV40_PGRAPH_TLIMIT0(i) ?? */
		NV_WRITE(0x00400908 + i*0x10, NV_READ(NV10_PFB_TSIZE(i)));
			/* which is NV40_PGRAPH_TSIZE0(i) ?? */
		NV_WRITE(0x00400900 + i*0x10, NV_READ(NV10_PFB_TILE(i)));
			/* which is NV40_PGRAPH_TILE0(i) ?? */
	}

	NV_WRITE(NV10_PGRAPH_CTX_CONTROL, 0x10000100);
	NV_WRITE(NV10_PGRAPH_STATE      , 0xFFFFFFFF);
	NV_WRITE(0x0040075c             , 0x00000001);
	NV_WRITE(NV04_PGRAPH_FIFO       , 0x00000001);

	/* begin RAM config */
//	vramsz = drm_get_resource_len(dev, 0) - 1;
	NV_WRITE(0x4009A4, NV_READ(NV04_PFB_CFG0));
	NV_WRITE(0x4009A8, NV_READ(NV04_PFB_CFG1));
	if (dev_priv->chipset != 0x34) {
		NV_WRITE(0x400750, 0x00EA0000);
		NV_WRITE(0x400754, NV_READ(NV04_PFB_CFG0));
		NV_WRITE(0x400750, 0x00EA0004);
		NV_WRITE(0x400754, NV_READ(NV04_PFB_CFG1));
	}

#if 0
	NV_WRITE(0x400820, 0);
	NV_WRITE(0x400824, 0);
	NV_WRITE(0x400864, vramsz-1);
	NV_WRITE(0x400868, vramsz-1);

	NV_WRITE(0x400B20, 0x00000000);
	NV_WRITE(0x400B04, 0xFFFFFFFF);

	/* per-context state, doesn't belong here */
	tmp = NV_READ(NV10_PGRAPH_SURFACE) & 0x0007ff00;
	NV_WRITE(NV10_PGRAPH_SURFACE, tmp);
	tmp = NV_READ(NV10_PGRAPH_SURFACE) | 0x00020100;
	NV_WRITE(NV10_PGRAPH_SURFACE, tmp);

	NV_WRITE(NV03_PGRAPH_ABS_UCLIP_XMIN, 0);
	NV_WRITE(NV03_PGRAPH_ABS_UCLIP_YMIN, 0);
	NV_WRITE(NV03_PGRAPH_ABS_UCLIP_XMAX, 0x7fff);
	NV_WRITE(NV03_PGRAPH_ABS_UCLIP_YMAX, 0x7fff);
#endif

	return 0;
}
Ejemplo n.º 15
0
int nv20_graph_init(struct drm_device *dev) {
	struct drm_nouveau_private *dev_priv =
		(struct drm_nouveau_private *)dev->dev_private;
	uint32_t tmp, vramsz;
	int ret, i;

	NV_WRITE(NV03_PMC_ENABLE, NV_READ(NV03_PMC_ENABLE) &
			~NV_PMC_ENABLE_PGRAPH);
	NV_WRITE(NV03_PMC_ENABLE, NV_READ(NV03_PMC_ENABLE) |
			 NV_PMC_ENABLE_PGRAPH);

	/* Create Context Pointer Table */
	dev_priv->ctx_table_size = 32 * 4;
	if ((ret = nouveau_gpuobj_new_ref(dev, NULL, NULL, 0,
					  dev_priv->ctx_table_size, 16,
					  NVOBJ_FLAG_ZERO_ALLOC,
					  &dev_priv->ctx_table)))
		return ret;

	NV_WRITE(NV20_PGRAPH_CHANNEL_CTX_TABLE,
		 dev_priv->ctx_table->instance >> 4);

	nv20_graph_rdi(dev);

	NV_WRITE(NV03_PGRAPH_INTR   , 0xFFFFFFFF);
	NV_WRITE(NV03_PGRAPH_INTR_EN, 0xFFFFFFFF);

	NV_WRITE(NV04_PGRAPH_DEBUG_0, 0xFFFFFFFF);
	NV_WRITE(NV04_PGRAPH_DEBUG_0, 0x00000000);
	NV_WRITE(NV04_PGRAPH_DEBUG_1, 0x00118700);
	NV_WRITE(NV04_PGRAPH_DEBUG_3, 0xF3CE0475); /* 0x4 = auto ctx switch */
	NV_WRITE(NV10_PGRAPH_DEBUG_4, 0x00000000);
	NV_WRITE(0x40009C           , 0x00000040);

	if (dev_priv->chipset >= 0x25) {
		NV_WRITE(0x400890, 0x00080000);
		NV_WRITE(0x400610, 0x304B1FB6);
		NV_WRITE(0x400B80, 0x18B82880);
		NV_WRITE(0x400B84, 0x44000000);
		NV_WRITE(0x400098, 0x40000080);
		NV_WRITE(0x400B88, 0x000000ff);
	} else {
		NV_WRITE(0x400880, 0x00080000); /* 0x0008c7df */
		NV_WRITE(0x400094, 0x00000005);
		NV_WRITE(0x400B80, 0x45CAA208); /* 0x45eae20e */
		NV_WRITE(0x400B84, 0x24000000);
		NV_WRITE(0x400098, 0x00000040);
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00E00038);
		NV_WRITE(NV10_PGRAPH_RDI_DATA , 0x00000030);
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00E10038);
		NV_WRITE(NV10_PGRAPH_RDI_DATA , 0x00000030);
	}

	/* copy tile info from PFB */
	for (i = 0; i < NV10_PFB_TILE__SIZE; i++) {
		NV_WRITE(0x00400904 + i*0x10, NV_READ(NV10_PFB_TLIMIT(i)));
			/* which is NV40_PGRAPH_TLIMIT0(i) ?? */
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA0030+i*4);
		NV_WRITE(NV10_PGRAPH_RDI_DATA, NV_READ(NV10_PFB_TLIMIT(i)));
		NV_WRITE(0x00400908 + i*0x10, NV_READ(NV10_PFB_TSIZE(i)));
			/* which is NV40_PGRAPH_TSIZE0(i) ?? */
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA0050+i*4);
		NV_WRITE(NV10_PGRAPH_RDI_DATA, NV_READ(NV10_PFB_TSIZE(i)));
		NV_WRITE(0x00400900 + i*0x10, NV_READ(NV10_PFB_TILE(i)));
			/* which is NV40_PGRAPH_TILE0(i) ?? */
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA0010+i*4);
		NV_WRITE(NV10_PGRAPH_RDI_DATA, NV_READ(NV10_PFB_TILE(i)));
	}
	for (i = 0; i < 8; i++) {
		NV_WRITE(0x400980+i*4, NV_READ(0x100300+i*4));
		NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA0090+i*4);
		NV_WRITE(NV10_PGRAPH_RDI_DATA, NV_READ(0x100300+i*4));
	}
	NV_WRITE(0x4009a0, NV_READ(0x100324));
	NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA000C);
	NV_WRITE(NV10_PGRAPH_RDI_DATA, NV_READ(0x100324));

	NV_WRITE(NV10_PGRAPH_CTX_CONTROL, 0x10000100);
	NV_WRITE(NV10_PGRAPH_STATE      , 0xFFFFFFFF);
	NV_WRITE(NV04_PGRAPH_FIFO       , 0x00000001);

	tmp = NV_READ(NV10_PGRAPH_SURFACE) & 0x0007ff00;
	NV_WRITE(NV10_PGRAPH_SURFACE, tmp);
	tmp = NV_READ(NV10_PGRAPH_SURFACE) | 0x00020100;
	NV_WRITE(NV10_PGRAPH_SURFACE, tmp);

	/* begin RAM config */
	vramsz = drm_get_resource_len(dev, 0) - 1;
	NV_WRITE(0x4009A4, NV_READ(NV04_PFB_CFG0));
	NV_WRITE(0x4009A8, NV_READ(NV04_PFB_CFG1));
	NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA0000);
	NV_WRITE(NV10_PGRAPH_RDI_DATA , NV_READ(NV04_PFB_CFG0));
	NV_WRITE(NV10_PGRAPH_RDI_INDEX, 0x00EA0004);
	NV_WRITE(NV10_PGRAPH_RDI_DATA , NV_READ(NV04_PFB_CFG1));
	NV_WRITE(0x400820, 0);
	NV_WRITE(0x400824, 0);
	NV_WRITE(0x400864, vramsz-1);
	NV_WRITE(0x400868, vramsz-1);

	/* interesting.. the below overwrites some of the tile setup above.. */
	NV_WRITE(0x400B20, 0x00000000);
	NV_WRITE(0x400B04, 0xFFFFFFFF);

	NV_WRITE(NV03_PGRAPH_ABS_UCLIP_XMIN, 0);
	NV_WRITE(NV03_PGRAPH_ABS_UCLIP_YMIN, 0);
	NV_WRITE(NV03_PGRAPH_ABS_UCLIP_XMAX, 0x7fff);
	NV_WRITE(NV03_PGRAPH_ABS_UCLIP_YMAX, 0x7fff);

	return 0;
}