- Fixed two bugs related to DMA buffer handling that showed up with the

new DRM version 2.4 and command DMA.
- Flush less.
- Bumped the driver date.

src/mesa/drivers/dri/savage/savage_xmesa.c

@@ -247,7 +247,8 @@ savageDestroyScreen(__DRIscreenPrivate *sPriv)
 {
    savageScreenPrivate *savageScreen = (savageScreenPrivate *)sPriv->private;
 
-   drmUnmapBufs(savageScreen->bufs);
+   if (savageScreen->bufs)
+       drmUnmapBufs(savageScreen->bufs);
 
    /* free all option information */
    driDestroyOptionInfo (&savageScreen->optionCache);
@@ -492,16 +493,11 @@ savageCreateContext( const __GLcontextModes *mesaVis,
 	       "version 2.2.\n");
       imesa->enable_fastpath = GL_FALSE;
    }
-      
-   imesa->enable_vdma = driQueryOptionb(&imesa->optionCache, "enable_vdma");
-   if (imesa->enable_vdma && savageScreen->chipset == S3_SUPERSAVAGE) {
-       fprintf (stderr,
-		"*** Disabling vertex DMA on SuperSavage. Someone has to "
-		"find out, how to make\n*** it work without locking up. "
-		"To disable this message set option enable_vdma\n"
-		"*** to \"false\" in DRIConf.\n");
+
+   if (!savageScreen->bufs || savageScreen->chipset == S3_SUPERSAVAGE)
        imesa->enable_vdma = GL_FALSE;
-   }
+   else
+       imesa->enable_vdma = driQueryOptionb(&imesa->optionCache, "enable_vdma");
 
    /* Configure swrast to match hardware characteristics:
     */

src/mesa/drivers/dri/savage/savagecontext.h

@@ -86,7 +86,6 @@ typedef struct savage_texture_object_t *savageTextureObjectPtr;
 /* Don't make it too big. We don't want to buffer up a whole frame
  * that would force the application to wait later. */
 #define SAVAGE_CMDBUF_SIZE 1024
-#define SAVAGE_MAX_VERTS_PENDING 1024
 
 /* Use the templated vertex formats:
  */
@@ -226,7 +225,6 @@ struct savage_context_t {
     GLfloat hw_viewport[16];
     /* DRI stuff */
     GLuint bufferSize;
-    GLuint vertsPending;
 
     GLframebuffer *glBuffer;
    

src/mesa/drivers/dri/savage/savagedd.c

@@ -41,7 +41,7 @@
 #include "utils.h"
 
 
-#define DRIVER_DATE "20050120"
+#define DRIVER_DATE "20050305"
 
 /***************************************
  * Mesa's Driver Functions

src/mesa/drivers/dri/savage/savageioctl.c

@@ -57,6 +57,8 @@ void savageGetDMABuffer( savageContextPtr imesa )
    int retcode;
    drmBufPtr buf;
 
+   assert (imesa->savageScreen->bufs);
+
    if (SAVAGE_DEBUG & DEBUG_DMA)
       fprintf(stderr,  "Getting dma buffer\n");
 
@@ -422,10 +424,9 @@ static void savageDDClear( GLcontext *ctx, GLbitfield mask, GLboolean all,
 }
 
 
-/* This is necessary as to prevent annyoing stuttering effects with
- * some games, though it does reduce the frame rate (glxgears)
- * slightly. I believe this is due to texture uploads which do not go
- * through the Savage command pipeline yet. */
+/* This is necessary to avoid very jerky animation on my ProSavageDDR.
+ * Seems to work fine on other Savages though. Make this configurable!
+ */
 #define SYNC_FRAMES 1
 
 /*
@@ -530,13 +531,6 @@ void savageFlushVertices( savageContextPtr imesa )
 	cmd->prim.start = buffer->flushed / imesa->HwVertexSize;
 	cmd->prim.count = buffer->used / imesa->HwVertexSize - cmd->prim.start;
 	buffer->flushed = buffer->used;
-	/* Make sure we don't buffer too many vertices without
-	 * telling the hardware. */
-	imesa->vertsPending += cmd->prim.count;
-	if (imesa->vertsPending > SAVAGE_MAX_VERTS_PENDING) {
-	    savageFlushCmdBuf(imesa, GL_FALSE);
-	    imesa->vertsPending = 0;
-	}
     }
 }
 

src/mesa/drivers/dri/savage/savagetris.c

@@ -1192,11 +1192,8 @@ static void savageRenderStart( GLcontext *ctx )
 
 static void savageRenderFinish( GLcontext *ctx )
 {
-   /* Flush the last primitive now, before any state is changed.
-    * Alternatively state could be emitted in all state-changing
-    * functions in savagestate.c and when changing the vertex format
-    * above. */
-   FLUSH_BATCH(SAVAGE_CONTEXT(ctx));
+   /* Flush the last primitive now, before any state is changed. */
+   savageFlushVertices(SAVAGE_CONTEXT(ctx));
 
    if (SAVAGE_CONTEXT(ctx)->RenderIndex & SAVAGE_FALLBACK_BIT)
       _swrast_flush( ctx );