nouveau: first step to make graph ctx works

It is still not working, but now we could use some 3D commands
without needed to run nvidia blob before.

5 files changed, 606 insertions, 36 deletions

diff --git a/shared-core/nouveau_drv.h b/shared-core/nouveau_drv.h
index 219ba123..9466cdcd 100644
--- a/shared-core/nouveau_drv.h
+++ b/shared-core/nouveau_drv.h
@@ -90,8 +90,8 @@ struct nouveau_fifo
 	/* objects belonging to this fifo */
 	struct nouveau_object *objs;
 
-	/* XXX move this in PGRAPH struct */
-	uint32_t pgraph_ctx_user;
+	/* XXX dynamic alloc ? */
+	uint32_t nv10_pgraph_ctx [340];
 };
 
 struct nouveau_config {
@@ -202,6 +202,11 @@ extern void        nouveau_irq_preinstall(drm_device_t*);
 extern void        nouveau_irq_postinstall(drm_device_t*);
 extern void        nouveau_irq_uninstall(drm_device_t*);
 
+/* nv10_graph.c */
+extern void nouveau_nv10_context_switch(drm_device_t *dev);
+extern int nv10_graph_init(drm_device_t *dev);
+extern int nv10_graph_context_create(drm_device_t *dev, int channel);
+
 /* nv30_graph.c */
 extern int nv30_graph_init(drm_device_t *dev);
 extern int nv30_graph_context_create(drm_device_t *dev, int channel);
diff --git a/shared-core/nouveau_fifo.c b/shared-core/nouveau_fifo.c
index 98a1344e..cb94afc5 100644
--- a/shared-core/nouveau_fifo.c
+++ b/shared-core/nouveau_fifo.c
@@ -538,7 +538,6 @@ static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init,
 	init->channel  = i;
 	init->put_base = 0;
 	dev_priv->cur_fifo = init->channel;
-	dev_priv->fifos[i].pgraph_ctx_user = i << 24;
 
 	nouveau_wait_for_idle(dev);
 
@@ -551,8 +550,9 @@ static int nouveau_fifo_alloc(drm_device_t* dev,drm_nouveau_fifo_alloc_t* init,
 	/* Construct inital RAMFC for new channel */
 	if (dev_priv->card_type < NV_10) {
 		nouveau_nv04_context_init(dev, init);
-        } else if (dev_priv->card_type < NV_30) {
-                nouveau_nv10_context_init(dev, init);
+	} else if (dev_priv->card_type < NV_30) {
+		nv10_graph_context_create(dev, init->channel);
+		nouveau_nv10_context_init(dev, init);
         } else if (dev_priv->card_type < NV_40) {
                 ret = nv30_graph_context_create(dev, init->channel);
                 if (ret) {
diff --git a/shared-core/nouveau_irq.c b/shared-core/nouveau_irq.c
index 7a31fb0b..638b094b 100644
--- a/shared-core/nouveau_irq.c
+++ b/shared-core/nouveau_irq.c
@@ -237,37 +237,6 @@ static void nouveau_nv04_context_switch(drm_device_t *dev)
 	
 }
 
-static void nouveau_nv10_context_switch(drm_device_t *dev)
-{
-	drm_nouveau_private_t *dev_priv = dev->dev_private;
-	int channel, channel_old;
-
-	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);
-	NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000000);
-	NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000000);
-	NV_WRITE(NV_PFIFO_CACHES, 0x00000000);
-
-	dev_priv->fifos[channel_old].pgraph_ctx_user = NV_READ(NV_PGRAPH_CTX_USER);
-	//XXX save PGRAPH context
-	NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10000000);
-	NV_WRITE(NV_PGRAPH_CTX_USER, dev_priv->fifos[channel].pgraph_ctx_user);
-	//XXX restore PGRAPH context
-	printk("ctx_user %x %x\n", dev_priv->fifos[channel_old].pgraph_ctx_user, dev_priv->fifos[channel].pgraph_ctx_user);
-
-	NV_WRITE(NV_PGRAPH_FFINTFC_ST2, NV_READ(NV_PGRAPH_FFINTFC_ST2)&0xCFFFFFFF);
-	NV_WRITE(NV_PGRAPH_CTX_CONTROL, 0x10010100);
-
-	NV_WRITE(NV_PFIFO_CACH1_PUL0, 0x00000001);
-	NV_WRITE(NV_PFIFO_CACH1_PUL1, 0x00000001);
-	NV_WRITE(NV_PFIFO_CACHES, 0x00000001);
-	NV_WRITE(NV_PGRAPH_FIFO,0x1);
-}
-
 static void nouveau_pgraph_irq_handler(drm_device_t *dev)
 {
 	uint32_t status;
diff --git a/shared-core/nouveau_state.c b/shared-core/nouveau_state.c
index 1e0587f6..6448512c 100644
--- a/shared-core/nouveau_state.c
+++ b/shared-core/nouveau_state.c
@@ -96,6 +96,8 @@ int nouveau_firstopen(struct drm_device *dev)
 	/* FIXME: doesn't belong here, and have no idea what it's for.. */
 	if (dev_priv->card_type >= NV_40)
 		nv40_graph_init(dev);
+	else if (dev_priv->card_type == NV_10)
+		nv10_graph_init(dev);
 
 	return 0;
 }
diff --git a/shared-core/nv10_graph.c b/shared-core/nv10_graph.c
new file mode 100644
index 00000000..ccbb34de
--- /dev/null
+++ b/shared-core/nv10_graph.c
@@ -0,0 +1,594 @@
+/* 
+ * 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,
+NV_PGRAPH_CTX_SWITCH2,
+NV_PGRAPH_CTX_SWITCH3,
+NV_PGRAPH_CTX_SWITCH4,
+NV_PGRAPH_CTX_SWITCH5,
+0x00400160,
+0x00400180,
+0x004001a0,
+0x004001c0,
+0x004001e0,
+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,
+0x00400900,
+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,
+0x00400808,
+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,
+0x00400eb0,
+0x00400eb4,
+0x00400eb8,
+0x00400ebc,
+0x00400ec0,
+0x00400ec4,
+0x00400ec8,
+0x00400ecc,
+0x00400ed0,
+0x00400ed4,
+0x00400ed8,
+0x00400edc,
+0x00400ee0,
+0x00400a00,
+0x00400a04,
+0x00400e90,
+0x00400e94,
+0x00400e98,
+0x00400e9c,
+0x00400f00,
+0x00400f20,
+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,
+0x00400400,
+0x00400480,
+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
+};
+
+void nouveau_nv10_context_switch(drm_device_t *dev)
+{
+	drm_nouveau_private_t *dev_priv = dev->dev_private;
+	int channel, channel_old, i;
+
+	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]);
+	
+	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 0
+	for (i = 0; nv10_graph_ctx_regs[i]; i++)
+		NV_WRITE(nv10_graph_ctx_regs[i], 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);
+	return 0;
+}
+
+
+int nv10_graph_init(drm_device_t *dev) {
+	//XXX should be call at each fifo init
+	nv10_praph_pipe(dev);
+	return 0;
+}