Imported the Savage DRI driver from the savage-2-0-0-branch of DRI CVS

with modifications to make it work with current Mesa 6.

1 files changed, 521 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/savage/savageioctl.c b/src/mesa/drivers/dri/savage/savageioctl.c
new file mode 100644
index 0000000000..7f85ef920a
--- /dev/null
+++ b/src/mesa/drivers/dri/savage/savageioctl.c
@@ -0,0 +1,521 @@
+/*
+ * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license,
+ * 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VIA, S3 GRAPHICS, 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 <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "mtypes.h"
+#include "macros.h"
+#include "dd.h"
+#include "context.h"
+#include "swrast/swrast.h"
+
+#include "mm.h"
+#include "savagecontext.h"
+#include "savageioctl.h"
+#include "savage_bci.h"
+#include "savagedma.h"
+
+#include "drm.h"
+#include <sys/ioctl.h>
+#include <sys/timeb.h>
+
+extern GLuint bcicount;
+#define DEPTH_SCALE_16 ((1<<16)-1)
+#define DEPTH_SCALE_24 ((1<<24)-1)
+
+static void savage_BCI_clear(GLcontext *ctx, drm_savage_clear_t *pclear)
+{
+	savageContextPtr imesa = SAVAGE_CONTEXT(ctx);
+	int nbox = imesa->sarea->nbox;
+	drm_clip_rect_t *pbox = imesa->sarea->boxes;
+        int i;
+
+	
+      	if (nbox > SAVAGE_NR_SAREA_CLIPRECTS)
+     		nbox = SAVAGE_NR_SAREA_CLIPRECTS;
+
+	for (i = 0 ; i < nbox ; i++, pbox++) {
+		unsigned int x = pbox->x1;
+		unsigned int y = pbox->y1;
+		unsigned int width = pbox->x2 - x+1;
+		unsigned int height = pbox->y2 - y+1;
+ 		unsigned int *bciptr;		
+
+		if (pbox->x1 > pbox->x2 ||
+		    pbox->y1 > pbox->y2 ||
+		    pbox->x2 > imesa->savageScreen->width ||
+		    pbox->y2 > imesa->savageScreen->height)
+			continue;
+
+	   	if ( (pclear->flags & SAVAGE_FRONT) && imesa->IsFullScreen) {
+		        bciptr = savageDMAAlloc (imesa, 8);
+			WRITE_CMD((bciptr) , 0x4BCC8C00,GLuint);
+			WRITE_CMD((bciptr) , imesa->savageScreen->frontOffset,GLuint);
+			WRITE_CMD((bciptr) , imesa->savageScreen->frontBitmapDesc,GLuint);
+			WRITE_CMD((bciptr) , pclear->clear_color,GLuint);
+			WRITE_CMD((bciptr) , (y <<16) | x,GLuint);
+			WRITE_CMD((bciptr) , (height << 16) | width,GLuint);
+			savageDMACommit (imesa, bciptr);
+		}
+		else if ( pclear->flags & (SAVAGE_BACK|SAVAGE_FRONT) ) {
+		        bciptr = savageDMAAlloc (imesa, 8);
+			WRITE_CMD((bciptr) , 0x4BCC8C00,GLuint);
+			WRITE_CMD((bciptr) , imesa->savageScreen->backOffset,GLuint);
+			WRITE_CMD((bciptr) , imesa->savageScreen->backBitmapDesc,GLuint);
+			WRITE_CMD((bciptr) , pclear->clear_color,GLuint);
+			WRITE_CMD((bciptr) , (y <<16) | x,GLuint);
+			WRITE_CMD((bciptr) , (height << 16) | width,GLuint);
+			savageDMACommit (imesa, bciptr);
+		}
+		
+		if ( pclear->flags & (SAVAGE_DEPTH |SAVAGE_STENCIL) ) {
+		        GLuint writeMask = 0x0;
+#if HW_STENCIL		
+		        if(imesa->hw_stencil)
+		        {        
+		            if(pclear->flags & SAVAGE_STENCIL)
+		            {
+		          
+		                 writeMask |= 0xFF000000;
+		            }
+		            if(pclear->flags & SAVAGE_DEPTH)
+		            {
+		                 writeMask |= 0x00FFFFFF;
+		            }
+                        }
+#endif
+		        if(imesa->IsFullScreen && imesa->NotFirstFrame &&
+			   imesa->savageScreen->chipset >= S3_SAVAGE4)
+		        {
+		            imesa->Registers.ZBufCtrl.s4.autoZEnable = GL_TRUE;
+                                imesa->Registers.ZBufCtrl.s4.frameID = ~imesa->Registers.ZBufCtrl.s4.frameID;
+                            
+                            imesa->dirty |= SAVAGE_UPLOAD_CTX;
+		        }
+		        else
+		        {
+		            if(imesa->IsFullScreen)
+		                imesa->NotFirstFrame = GL_TRUE;
+		                
+#if HW_STENCIL
+			    if(imesa->hw_stencil)
+			    {
+				bciptr = savageDMAAlloc (imesa, 10);
+			        if(writeMask != 0xFFFFFFFF)
+			        {
+                                    WRITE_CMD((bciptr) , 0x960100D7,GLuint);
+                                    WRITE_CMD((bciptr) , writeMask,GLuint);  
+                                }
+                            }
+			    else
+#endif              
+			    {
+				bciptr = savageDMAAlloc (imesa, 6);
+			    }
+
+			    WRITE_CMD((bciptr) , 0x4BCC8C00,GLuint);
+			    WRITE_CMD((bciptr) , imesa->savageScreen->depthOffset,GLuint);
+			    WRITE_CMD((bciptr) , imesa->savageScreen->depthBitmapDesc,GLuint);
+			    WRITE_CMD((bciptr) , pclear->clear_depth,GLuint);
+			    WRITE_CMD((bciptr) , (y <<16) | x,GLuint);
+			    WRITE_CMD((bciptr) , (height << 16) | width,GLuint);
+#if HW_STENCIL			    
+			    if(imesa->hw_stencil)
+			    {
+			        if(writeMask != 0xFFFFFFFF)
+			        {
+			           WRITE_CMD((bciptr) , 0x960100D7,GLuint);
+                                   WRITE_CMD((bciptr) , 0xFFFFFFFF,GLuint);  
+			        }
+			    }
+#endif
+			    savageDMACommit (imesa, bciptr);
+			}
+		}
+	}
+	/* FK: Make sure that the clear stuff is emitted. Otherwise a
+	   software fallback may get overwritten by a delayed clear. */
+	savageDMAFlush (imesa);
+}
+
+struct timeb a,b;
+
+static void savage_BCI_swap(savageContextPtr imesa)
+{
+    int nbox = imesa->sarea->nbox;
+    drm_clip_rect_t *pbox = imesa->sarea->boxes;
+    int i;
+    volatile unsigned int *bciptr;
+    
+    if (nbox > SAVAGE_NR_SAREA_CLIPRECTS)
+        nbox = SAVAGE_NR_SAREA_CLIPRECTS;
+    savageDMAFlush (imesa);
+    WAIT_IDLE_EMPTY;
+    
+    if(imesa->IsFullScreen)
+    { /* full screen*/
+        unsigned int tmp0;
+        tmp0 = imesa->savageScreen->frontOffset; 
+        imesa->savageScreen->frontOffset = imesa->savageScreen->backOffset;
+        imesa->savageScreen->backOffset = tmp0;
+        
+        if(imesa->toggle == TARGET_BACK)
+            imesa->toggle = TARGET_FRONT;
+        else
+            imesa->toggle = TARGET_BACK; 
+        
+        imesa->drawMap = (char *)imesa->apertureBase[imesa->toggle];
+        imesa->readMap = (char *)imesa->apertureBase[imesa->toggle];
+        
+        imesa->Registers.DestCtrl.ni.offset = imesa->savageScreen->backOffset>>11;
+        imesa->Registers.changed.ni.fDestCtrlChanged = GL_TRUE;
+        imesa->dirty |= SAVAGE_UPLOAD_CTX;
+        bciptr = SAVAGE_GET_BCI_POINTER(imesa,3);
+        *(bciptr) = 0x960100B0;
+        *(bciptr) = (imesa->savageScreen->frontOffset); 
+        *(bciptr) = 0xA0000000;
+    } 
+    
+    else
+    {  /* Use bitblt copy from back to front buffer*/
+        
+        for (i = 0 ; i < nbox; i++, pbox++)
+        {
+            unsigned int w = pbox->x2 - pbox->x1;
+            unsigned int h = pbox->y2 - pbox->y1;
+            
+            if (pbox->x1 > pbox->x2 ||
+                pbox->y1 > pbox->y2 ||
+                pbox->x2 > imesa->savageScreen->width ||
+                pbox->y2 > imesa->savageScreen->height)
+                continue;
+
+            bciptr = SAVAGE_GET_BCI_POINTER(imesa,6);
+            
+            *(bciptr) = 0x4BCC00C0;
+            
+            *(bciptr) = imesa->savageScreen->backOffset;
+            *(bciptr) = imesa->savageScreen->backBitmapDesc;
+            *(bciptr) = (pbox->y1 <<16) | pbox->x1;   /*x0, y0*/
+            *(bciptr) = (pbox->y1 <<16) | pbox->x1;
+            *(bciptr) = (h << 16) | w;
+        }
+        
+    }
+}
+
+
+static void savageDDClear( GLcontext *ctx, GLbitfield mask, GLboolean all,
+			   GLint cx, GLint cy, GLint cw, GLint ch ) 
+{
+  savageContextPtr imesa = SAVAGE_CONTEXT( ctx );
+   __DRIdrawablePrivate *dPriv = imesa->driDrawable;
+   const GLuint colorMask = *((GLuint *) &ctx->Color.ColorMask);
+   drm_savage_clear_t clear;
+   int i;
+
+   clear.flags = 0;
+   clear.clear_color = imesa->ClearColor;
+
+   if(imesa->savageScreen->zpp == 2)
+       clear.clear_depth = (GLuint) (ctx->Depth.Clear * DEPTH_SCALE_16);
+   else
+       clear.clear_depth = (GLuint) (ctx->Depth.Clear * DEPTH_SCALE_24);
+#if 0
+   FLUSH_BATCH( imesa );
+#endif	
+   if ((mask & DD_FRONT_LEFT_BIT) && ((colorMask&0xffffffUL)==0xffffffUL) ){
+      clear.flags |= SAVAGE_FRONT;
+      mask &= ~DD_FRONT_LEFT_BIT;
+   }
+
+   if ((mask & DD_BACK_LEFT_BIT) && ((colorMask&0xffffffUL)==0xffffffUL) ) {
+      clear.flags |= SAVAGE_BACK;
+      mask &= ~DD_BACK_LEFT_BIT;
+   }
+
+   if ((mask & DD_DEPTH_BIT) && ctx->Depth.Mask) {
+      clear.flags |= SAVAGE_DEPTH;
+      mask &= ~DD_DEPTH_BIT;
+   }
+   
+   if((mask & DD_STENCIL_BIT) && imesa->hw_stencil)
+   {
+       clear.flags |= SAVAGE_STENCIL;
+       mask &= ~DD_STENCIL_BIT;
+   }
+
+   if (clear.flags) {
+       LOCK_HARDWARE( imesa );
+
+       /* flip top to bottom */
+       cy = dPriv->h-cy-ch;
+       cx += imesa->drawX;
+       cy += imesa->drawY;
+
+       for (i = 0 ; i < imesa->numClipRects ; ) { 	 
+	   int nr = MIN2(i + SAVAGE_NR_SAREA_CLIPRECTS, imesa->numClipRects);
+	   XF86DRIClipRectRec *box = imesa->pClipRects;	 
+	   drm_clip_rect_t *b = imesa->sarea->boxes;
+	   int n = 0;
+
+	   if (!all) {
+	       for ( ; i < nr ; i++) {
+		   GLint x = box[i].x1;
+		   GLint y = box[i].y1;
+		   GLint w = box[i].x2 - x;
+		   GLint h = box[i].y2 - y;
+
+		   if (x < cx) w -= cx - x, x = cx; 
+		   if (y < cy) h -= cy - y, y = cy;
+		   if (x + w > cx + cw) w = cx + cw - x;
+		   if (y + h > cy + ch) h = cy + ch - y;
+		   if (w <= 0) continue;
+		   if (h <= 0) continue;
+
+		   b->x1 = x;
+		   b->y1 = y;
+		   b->x2 = x + w;
+		   b->y2 = y + h;
+		   b++;
+		   n++;
+	       }
+	   } else {
+	       for ( ; i < nr ; i++) {
+		   *b++ = *(drm_clip_rect_t *)&box[i];
+		   n++;
+	       }
+	   }
+
+	   imesa->sarea->nbox = n;
+
+	   savage_BCI_clear(ctx,&clear);
+       }
+
+       UNLOCK_HARDWARE( imesa );
+       imesa->dirty |= SAVAGE_UPLOAD_CLIPRECTS|SAVAGE_UPLOAD_CTX;
+   }
+
+   if (mask) 
+      _swrast_Clear( ctx, mask, all, cx, cy, cw, ch );
+}
+
+
+
+
+/*
+ * Copy the back buffer to the front buffer. 
+ */
+void savageSwapBuffers( __DRIdrawablePrivate *dPriv )
+{
+   savageContextPtr imesa;
+   XF86DRIClipRectPtr pbox;
+   int nbox;
+   int i;
+
+   GLboolean pending;
+
+   assert(dPriv);
+   assert(dPriv->driContextPriv);
+   assert(dPriv->driContextPriv->driverPrivate);
+
+   imesa = (savageContextPtr) dPriv->driContextPriv->driverPrivate;
+   if (imesa->IsDouble)
+       _mesa_notifySwapBuffers( imesa->glCtx );
+
+   LOCK_HARDWARE( imesa );
+   PAGE_PENDING(pending);
+
+   if(!pending)
+   {
+   pbox = dPriv->pClipRects;
+   nbox = dPriv->numClipRects;
+
+   for (i = 0 ; i < nbox ; )
+   {
+      int nr = MIN2(i + SAVAGE_NR_SAREA_CLIPRECTS, dPriv->numClipRects);
+      XF86DRIClipRectRec *b = (XF86DRIClipRectRec *)imesa->sarea->boxes;
+
+      imesa->sarea->nbox = nr - i;
+
+      for ( ; i < nr ; i++) 
+	 *b++ = pbox[i];
+     savage_BCI_swap(imesa) ;
+   }
+   }
+   UNLOCK_HARDWARE( imesa );
+   
+
+}
+
+/* This waits for *everybody* to finish rendering -- overkill.
+ */
+void savageDmaFinish( savageContextPtr imesa  ) 
+{
+    savageDMAFlush(imesa);
+    WAIT_IDLE_EMPTY;
+}
+
+
+void savageRegetLockQuiescent( savageContextPtr imesa  ) 
+{
+    
+
+}
+
+void savageWaitAgeLocked( savageContextPtr imesa, int age  ) 
+{
+}
+
+
+void savageWaitAge( savageContextPtr imesa, int age  ) 
+{
+}
+
+
+
+void savageFlushVertices( savageContextPtr imesa ) 
+{
+
+}
+
+
+void savageFlushVerticesLocked( savageContextPtr imesa )
+{
+
+}
+
+
+int savage_check_copy(int fd)
+{
+    return 0;
+}
+
+static void savageDDFlush( GLcontext *ctx )
+{
+
+}
+
+static void savageDDFinish( GLcontext *ctx  ) 
+{
+}
+
+#define ALT_STATUS_WORD0 (* (volatile GLuint *)(imesa->MMIO_BASE+0x48c60))
+#define STATUS_WORD0 (* (volatile GLuint *)(imesa->MMIO_BASE+0x48c00))
+#define MAXFIFO_S4 0x1FF00
+#define MAXFIFO_S3D 0x7F00
+
+static GLboolean savagePagePending_s4( savageContextPtr imesa ) {
+    return (ALT_STATUS_WORD0 & 0x08000000) ? GL_TRUE : GL_FALSE;
+}
+static GLboolean savagePagePending_s3d( savageContextPtr imesa ) {
+    return GL_FALSE;
+}
+static void savageWaitForFIFO_s4( savageContextPtr imesa, unsigned count ) {
+    int loop = 0;
+    int slots = MAXFIFO_S4-count;
+    while((ALT_STATUS_WORD0 & 0x001fffff) > slots && loop++ < MAXLOOP);
+}
+static void savageWaitForFIFO_s3d( savageContextPtr imesa, unsigned count ) {
+    int loop = 0;
+    int slots = MAXFIFO_S3D-count;
+    while((STATUS_WORD0 & 0x0001ffff) > slots && loop++ < MAXLOOP);
+}
+static void savageWaitIdleEmpty_s4( savageContextPtr imesa ) {
+    int loop = 0;
+    while((ALT_STATUS_WORD0 & 0x00ffffff) != 0x00E00000L && loop++ < MAXLOOP);
+}
+static void savageWaitIdleEmpty_s3d( savageContextPtr imesa ) {
+    int loop = 0;
+    while((STATUS_WORD0 & 0x000fffff) != 0x000E0000L && loop++ < MAXLOOP);
+}
+
+GLboolean (*savagePagePending)( savageContextPtr imesa ) = NULL;
+void (*savageWaitForFIFO)( savageContextPtr imesa, unsigned count ) = NULL;
+void (*savageWaitIdleEmpty)( savageContextPtr imesa ) = NULL;
+
+
+void savageDDInitIoctlFuncs( GLcontext *ctx )
+{
+   ctx->Driver.Clear = savageDDClear;
+   ctx->Driver.Flush = savageDDFlush;
+   ctx->Driver.Finish = savageDDFinish;
+   if (SAVAGE_CONTEXT( ctx )->savageScreen->chipset >= S3_SAVAGE4) {
+       savagePagePending = savagePagePending_s4;
+       savageWaitForFIFO = savageWaitForFIFO_s4;
+       savageWaitIdleEmpty = savageWaitIdleEmpty_s4;
+   } else {
+       savagePagePending = savagePagePending_s3d;
+       savageWaitForFIFO = savageWaitForFIFO_s3d;
+       savageWaitIdleEmpty = savageWaitIdleEmpty_s3d;
+   }
+}
+
+#if SAVAGE_CMD_DMA
+/* Alloc a continuous memory */
+/* return: 0 error when kernel alloc pages(can try a half memory size) 
+           >0 sucess
+	   <0 Other error*/
+int  savageAllocDMABuffer(savageContextPtr imesa,  drm_savage_alloc_cont_mem_t *req)
+{
+  int ret;
+  if (req ==NULL)
+    return 0;
+
+  if ((ret=ioctl(imesa->driFd, DRM_IOCTL_SAVAGE_ALLOC_CONTINUOUS_MEM, req)) <=0)    
+    return ret;
+  
+  return 1;
+  
+}
+
+/* get the physics address*/
+GLuint savageGetPhyAddress(savageContextPtr imesa,void * pointer)
+{
+
+  drm_savage_get_physcis_address_t req;
+  int ret;
+
+  req.v_address = (GLuint )pointer;
+  ret = ioctl(imesa->driFd, DRM_IOCTL_SAVAGE_GET_PHYSICS_ADDRESS,&req);
+
+  return req.p_address;
+}
+
+/* free the buffer got by savageAllocDMABuffe*/
+int  savageFreeDMABuffer(savageContextPtr imesa,  drm_savage_alloc_cont_mem_t *req)
+{
+  GLuint ret;
+  if (req ==NULL)
+    return 0;
+  
+  if ((ret=ioctl(imesa->driFd, DRM_IOCTL_SAVAGE_FREE_CONTINUOUS_MEM, req)) <=0)    
+    return ret;
+  return 1;
+  
+}
+#endif