From a75440bcf04efb7a4840e9b0d1f0903b40b952bf Mon Sep 17 00:00:00 2001
From: Ben Skeggs <darktama@iinet.net.au>
Date: Tue, 21 Nov 2006 14:03:06 +0000
Subject: [PATCH] nouveauCreateDmaObject

---
 src/mesa/drivers/dri/nouveau/nouveau_context.c |  1 +
 src/mesa/drivers/dri/nouveau/nouveau_object.c  | 37 +++++++++++++++++++++++---
 src/mesa/drivers/dri/nouveau/nouveau_object.h  |  2 ++
 3 files changed, 36 insertions(+), 4 deletions(-)

diff --git a/src/mesa/drivers/dri/nouveau/nouveau_context.c b/src/mesa/drivers/dri/nouveau/nouveau_context.c
index a2ac056..d3fbdab 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_context.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_context.c
@@ -45,6 +45,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "nouveau_object.h"
 #include "nouveau_fifo.h"
 #include "nouveau_tex.h"
+#include "nouveau_msg.h"
 #include "nv10_swtcl.h"
 
 #include "vblank.h"
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_object.c b/src/mesa/drivers/dri/nouveau/nouveau_object.c
index 9003fb1..fe3b44d 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_object.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_object.c
@@ -3,8 +3,7 @@
 #include "nouveau_object.h"
 
 
-static GLboolean NVDmaCreateContextObject(nouveauContextPtr nmesa, int handle, int class, uint32_t flags,
-			      uint32_t dma_in, uint32_t dma_out, uint32_t dma_notifier)
+static GLboolean nouveauCreateContextObject(nouveauContextPtr nmesa, int handle, int class, uint32_t flags, uint32_t dma_in, uint32_t dma_out, uint32_t dma_notifier)
 {
 	drm_nouveau_object_init_t cto;
 	int ret;
@@ -20,7 +19,27 @@ static GLboolean NVDmaCreateContextObject(nouveauContextPtr nmesa, int handle, i
 	return ret == 0;
 }
 
-static void nouveauObjectOnSubchannel(nouveauContextPtr nmesa, int handle, int subchannel)
+static GLboolean nouveauCreateDmaObject(nouveauContextPtr nmesa,
+      					uint32_t handle,
+      					uint32_t offset,
+					uint32_t size,
+					int	 target,
+					int	 access)
+{
+	drm_nouveau_dma_object_init_t dma;
+	int ret;
+
+	dma.handle = handle;
+	dma.target = target;
+	dma.access = access;
+	dma.offset = offset;
+	dma.handle = handle;
+	ret = drmCommandWriteRead(nmesa->driFd, DRM_NOUVEAU_DMA_OBJECT_INIT,
+				  &dma, sizeof(dma));
+	return ret == 0;
+}
+
+void nouveauObjectOnSubchannel(nouveauContextPtr nmesa, int subchannel, int handle)
 {
 	BEGIN_RING_SIZE(subchannel, 0, 1);
 	OUT_RING(handle);
@@ -28,8 +47,18 @@ static void nouveauObjectOnSubchannel(nouveauContextPtr nmesa, int handle, int s
 
 void nouveauObjectInit(nouveauContextPtr nmesa)
 {
-	NVDmaCreateContextObject(nmesa, Nv3D, nmesa->screen->card->class_3d, 0, 0, 0, 0);
+#ifdef NOUVEAU_RING_DEBUG
+	return;
+#endif
+
+	nouveauCreateContextObject(nmesa, Nv3D, nmesa->screen->card->class_3d, 0, 0, 0, 0);
 	nouveauObjectOnSubchannel(nmesa, NvSub3D, Nv3D);
+/* We need to know vram size.. */
+#if 0	
+	nouveauCreateDmaObject( nmesa, NvDmaFB,
+				0, (256*1024*1024),
+				0 /*NV_DMA_TARGET_FB*/, 0 /*NV_DMA_ACCESS_RW*/);
+#endif
 }
 
 
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_object.h b/src/mesa/drivers/dri/nouveau/nouveau_object.h
index e9a30d1..8386f92 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_object.h
+++ b/src/mesa/drivers/dri/nouveau/nouveau_object.h
@@ -7,10 +7,12 @@ void nouveauObjectInit(nouveauContextPtr nmesa);
 
 enum DMAObjects {
 	Nv3D                    = 0x80000019,
+	NvDmaFB			= 0xD0FB0001
 };
 
 enum DMASubchannel {
 	NvSub3D		= 7,
 };
 
+extern void nouveauObjectOnSubchannel(nouveauContextPtr nmesa, int subchannel, int handle);
 #endif
-- 
2.7.4