1 files changed, 63 insertions, 23 deletions

diff --git a/src/mesa/drivers/dri/unichrome/via_ioctl.h b/src/mesa/drivers/dri/unichrome/via_ioctl.h
index 627d8ad8f2..193aab8a99 100644
--- a/src/mesa/drivers/dri/unichrome/via_ioctl.h
+++ b/src/mesa/drivers/dri/unichrome/via_ioctl.h
@@ -28,43 +28,83 @@
 #include "via_context.h"
 
 
-void viaEmitPrim(viaContextPtr vmesa);
+void viaFinishPrimitive(viaContextPtr vmesa);
 void viaFlushPrims(viaContextPtr vmesa);
 void viaFlushPrimsLocked(viaContextPtr vmesa);
 
 void viaInitIoctlFuncs(GLcontext *ctx);
 void viaCopyBuffer(const __DRIdrawablePrivate *dpriv);
 void viaPageFlip(const __DRIdrawablePrivate *dpriv);
-int via_check_copy(int fd);
 void viaFillFrontBuffer(viaContextPtr vmesa);
 void viaFillFrontPBuffer(viaContextPtr vmesa);
 void viaFillBackBuffer(viaContextPtr vmesa);
 void viaFillDepthBuffer(viaContextPtr vmesa, GLuint pixel, GLuint mask);
 void viaDoSwapBuffers(viaContextPtr vmesa);
 void viaDoSwapPBuffers(viaContextPtr vmesa);
+void viaCheckDma(viaContextPtr vmesa, GLuint bytes);
 
-int flush_agp(viaContextPtr vmesa, drm_via_flush_agp_t* agpCmd); 
-int flush_sys(viaContextPtr vmesa, drm_via_flush_sys_t* buf); 
+#define VIA_FINISH_PRIM(vmesa) do {		\
+   if (vmesa->dmaLastPrim)			\
+      viaFinishPrimitive( vmesa );		\
+} while (0)
 
-#define VIA_FIREVERTICES(vmesa)                                 \
-    do {                                                        \
-        if (vmesa->dmaLow != DMA_OFFSET) {                      \
-            viaFlushPrims(vmesa);                               \
-        }                                                       \
-    } while (0)
+#define VIA_FLUSH_DMA(vmesa) do {		\
+   VIA_FINISH_PRIM(vmesa);			\
+   if (vmesa->dmaLow != DMA_OFFSET) 		\
+      viaFlushPrims(vmesa);			\
+} while (0)
     
 
-static __inline GLuint *viaCheckDma(viaContextPtr vmesa, int bytes)
-{
-    if (vmesa->dmaLow + bytes > vmesa->dmaHigh) {
-	if (VIA_DEBUG) fprintf(stderr, "buffer overflow in check dma = %d + %d = %d\n", 
-			       vmesa->dmaLow, bytes, vmesa->dmaLow + bytes);
-	viaFlushPrims(vmesa);
-    }
-
-    {
-        GLuint *start = (GLuint *)(vmesa->dmaAddr + vmesa->dmaLow);
-        return start;
-    }
-}
+GLuint *viaAllocDmaFunc(viaContextPtr vmesa, int bytes, const char *func, int line);
+#define viaAllocDma( v, b ) viaAllocDmaFunc(v, b, __FUNCTION__, __LINE__)
+
+
+
+/* Room for the cliprect and other preamble at the head of each dma
+ * buffer:   (What about buffers which only contain blits?)
+ */
+#define DMA_OFFSET 32
+
+#define RING_VARS GLuint *_vb = 0, _nr, _x;
+
+#define BEGIN_RING(n) do {				\
+   if (_vb != 0) abort();				\
+   _vb = viaAllocDma(vmesa, (n) * sizeof(GLuint));	\
+   _nr = (n);						\
+   _x = 0;						\
+} while (0)
+
+#define BEGIN_RING_NOCHECK(n) do {			\
+   if (_vb != 0) abort();				\
+   _vb = (GLuint *)(vmesa->dmaAddr + vmesa->dmaLow);	\
+   vmesa->dmaLow += (n) * sizeof(GLuint);		\
+   _nr = (n);						\
+   _x = 0;						\
+} while (0)
+
+#define OUT_RING(n) _vb[_x++] = (n)
+
+#define ADVANCE_RING() do {			\
+   if (_x != _nr) abort(); 			\
+   _vb = 0;						\
+} while (0)
+
+#define ADVANCE_RING_VARIABLE() do {			\
+   if (_x > _nr) abort();				\
+   vmesa->dmaLow -= (_nr - _x) * sizeof(GLuint);	\
+   _vb = 0;						\
+} while (0)
+
+
+#define QWORD_PAD_RING() do {			\
+   if (vmesa->dmaLow & 0x4) {			\
+      BEGIN_RING(1);				\
+      OUT_RING(HC_DUMMY);			\
+      ADVANCE_RING();				\
+   }						\
+} while (0)
+
+
+
+
 #endif