nouveau: Add simple wrapper for NV_MEMORY_TO_MEMORY_FORMAT.

src/mesa/drivers/dri/nouveau/nouveau_buffers.c

@@ -5,6 +5,65 @@
 
 #include "nouveau_context.h"
 #include "nouveau_buffers.h"
+#include "nouveau_object.h"
+#include "nouveau_fifo.h"
+#include "nouveau_reg.h"
+#include "nouveau_msg.h"
+
+#define MAX_MEMFMT_LENGTH 32768
+
+/* Unstrided blit using NV_MEMORY_TO_MEMORY_FORMAT */
+GLboolean
+nouveau_memformat_flat_emit(GLcontext *ctx,
+      			    nouveau_mem *dst, nouveau_mem *src,
+			    GLuint dst_offset, GLuint src_offset,
+			    GLuint size)
+{
+   nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+   uint32_t src_handle, dst_handle;
+   GLuint count;
+
+   if (src_offset + size > src->size) {
+      MESSAGE("src out of nouveau_mem bounds\n");
+      return GL_FALSE;
+   }
+   if (dst_offset + size > dst->size) {
+      MESSAGE("dst out of nouveau_mem bounds\n");
+      return GL_FALSE;
+   }
+
+   src_handle = (src->type & NOUVEAU_MEM_FB) ? NvDmaFB : NvDmaAGP;
+   dst_handle = (src->type & NOUVEAU_MEM_FB) ? NvDmaFB : NvDmaAGP;
+   src_offset += nouveau_mem_gpu_offset_get(ctx, src);
+   dst_offset += nouveau_mem_gpu_offset_get(ctx, dst);
+
+   BEGIN_RING_SIZE(NvSubMemFormat, NV_MEMORY_TO_MEMORY_FORMAT_OBJECT_IN, 2);
+   OUT_RING       (src_handle);
+   OUT_RING       (dst_handle);
+
+   count = (size / MAX_MEMFMT_LENGTH) + ((size % MAX_MEMFMT_LENGTH) ? 1 : 0);
+
+   while (count--) {
+      GLuint length = (size > MAX_MEMFMT_LENGTH) ? MAX_MEMFMT_LENGTH : size;
+
+      BEGIN_RING_SIZE(NvSubMemFormat, NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
+      OUT_RING       (src_offset);
+      OUT_RING       (dst_offset);
+      OUT_RING       (0); /* pitch in */
+      OUT_RING       (0); /* pitch out */
+      OUT_RING       (length); /* line length */
+      OUT_RING       (1); /* number of lines */
+      OUT_RING       ((1 << 8) /* dst_inc */ | (1 << 0) /* src_inc */);
+      OUT_RING       (0); /* buffer notify? */
+      FIRE_RING();
+
+      src_offset += length;
+      dst_offset += length;
+      size       -= length;
+   }
+
+   return GL_TRUE;
+}
 
 void
 nouveau_mem_free(GLcontext *ctx, nouveau_mem *mem)

src/mesa/drivers/dri/nouveau/nouveau_buffers.h

@@ -18,6 +18,11 @@ extern nouveau_mem *nouveau_mem_alloc(GLcontext *ctx, int type,
 extern void nouveau_mem_free(GLcontext *ctx, nouveau_mem *mem);
 extern uint32_t nouveau_mem_gpu_offset_get(GLcontext *ctx, nouveau_mem *mem);
 
+extern GLboolean nouveau_memformat_flat_emit(GLcontext *ctx,
+      					     nouveau_mem *dst, nouveau_mem *src,
+					     GLuint dst_offset, GLuint src_offset,
+					     GLuint size);
+
 typedef struct nouveau_renderbuffer_t {
    struct gl_renderbuffer mesa; /* must be first! */
    __DRIdrawablePrivate  *dPriv;

src/mesa/drivers/dri/nouveau/nouveau_object.c

@@ -52,10 +52,13 @@ void nouveauObjectInit(nouveauContextPtr nmesa)
 	return;
 #endif
 
-/* We need to know vram size.. */
+/* We need to know vram size.. and AGP size (and even if the card is AGP..) */
 	nouveauCreateDmaObject( nmesa, NvDmaFB,
 				0, (256*1024*1024),
 				0 /*NV_DMA_TARGET_FB*/, 0 /*NV_DMA_ACCESS_RW*/);
+	nouveauCreateDmaObject( nmesa, NvDmaAGP,
+	      			nmesa->agp_phys, (128*1024*1024),
+				3 /* AGP */, 0 /* RW */);
 
 	nouveauCreateContextObject(nmesa, Nv3D, nmesa->screen->card->class_3d,
 	      			   0, 0, 0, 0);
@@ -63,6 +66,9 @@ void nouveauObjectInit(nouveauContextPtr nmesa)
 	      			   0, 0, 0, 0);
 	nouveauCreateContextObject(nmesa, NvImageBlit, NV10_IMAGE_BLIT,
 	      			   NV_DMA_CONTEXT_FLAGS_PATCH_SRCCOPY, 0, 0, 0);
+	nouveauCreateContextObject(nmesa, NvMemFormat,
+	      			   NV_MEMORY_TO_MEMORY_FORMAT,
+	      			   0, 0, 0, 0);
 
 #ifdef ALLOW_MULTI_SUBCHANNEL
 	nouveauObjectOnSubchannel(nmesa, NvSubCtxSurf2D, NvCtxSurf2D);
@@ -75,6 +81,8 @@ void nouveauObjectInit(nouveauContextPtr nmesa)
 	OUT_RING(NvCtxSurf2D);
 	BEGIN_RING_SIZE(NvSubImageBlit, NV10_IMAGE_BLIT_SET_OPERATION, 1);
 	OUT_RING(3); /* SRCCOPY */
+
+	nouveauObjectOnSubchannel(nmesa, NvSubMemFormat, NvMemFormat);
 #endif
 
 	nouveauObjectOnSubchannel(nmesa, NvSub3D, Nv3D);

src/mesa/drivers/dri/nouveau/nouveau_object.h

@@ -11,6 +11,7 @@ enum DMAObjects {
 	Nv3D                    = 0x80000019,
 	NvCtxSurf2D		= 0x80000020,
 	NvImageBlit		= 0x80000021,
+	NvMemFormat		= 0x80000022,
 	NvDmaFB			= 0xD0FB0001,
 	NvDmaAGP		= 0xD0AA0001,
 	NvSyncNotify		= 0xD0000001
@@ -19,6 +20,7 @@ enum DMAObjects {
 enum DMASubchannel {
 	NvSubCtxSurf2D	= 0,
 	NvSubImageBlit	= 1,
+	NvSubMemFormat	= 2,
 	NvSub3D		= 7,
 };