Merge vsync changes from trunk.

17 files changed, 322 insertions, 151 deletions

diff --git a/src/mesa/drivers/dri/common/utils.c b/src/mesa/drivers/dri/common/utils.c
index e3eca86da1b..d872e11d755 100644
--- a/src/mesa/drivers/dri/common/utils.c
+++ b/src/mesa/drivers/dri/common/utils.c
@@ -419,6 +419,19 @@ driCheckDriDdxDrmVersions2(const char * driver_name,
 
 
 
+GLint
+driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 )
+{
+   if (rect2.x1 > rect1.x1) rect1.x1 = rect2.x1;
+   if (rect2.x2 < rect1.x2) rect1.x2 = rect2.x2;
+   if (rect2.y1 > rect1.y1) rect1.y1 = rect2.y1;
+   if (rect2.y2 < rect1.y2) rect1.y2 = rect2.y2;
+
+   if (rect1.x1 > rect1.x2 || rect1.y1 > rect1.y2) return 0;
+
+   return (rect1.x2 - rect1.x1) * (rect1.y2 - rect1.y1);
+}
+
 GLboolean driClipRectToFramebuffer( const GLframebuffer *buffer,
 				    GLint *x, GLint *y,
 				    GLsizei *width, GLsizei *height )
diff --git a/src/mesa/drivers/dri/common/utils.h b/src/mesa/drivers/dri/common/utils.h
index 26d178f7478..b2bab86e66c 100644
--- a/src/mesa/drivers/dri/common/utils.h
+++ b/src/mesa/drivers/dri/common/utils.h
@@ -106,6 +106,8 @@ extern GLboolean driCheckDriDdxDrmVersions3(const char * driver_name,
     const __DRIversion * ddxActual, const __DRIutilversion2 * ddxExpected,
     const __DRIversion * drmActual, const __DRIversion * drmExpected);
 
+extern GLint driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 );
+
 extern GLboolean driClipRectToFramebuffer( const GLframebuffer *buffer,
 					   GLint *x, GLint *y,
 					   GLsizei *width, GLsizei *height );
diff --git a/src/mesa/drivers/dri/common/vblank.c b/src/mesa/drivers/dri/common/vblank.c
index eebe42d96a1..e7ed545f13c 100644
--- a/src/mesa/drivers/dri/common/vblank.c
+++ b/src/mesa/drivers/dri/common/vblank.c
@@ -210,20 +210,6 @@ GLuint driGetDefaultVBlankFlags( const driOptionCache *optionCache )
 
 /****************************************************************************/
 /**
- * Sets the default swap interval when the drawable is first bound to a
- * direct rendering context.
- */
-
-void driDrawableInitVBlank( __DRIdrawablePrivate *priv, GLuint flags )
-{
-   if ( priv->pdraw->swap_interval == (unsigned)-1 ) {
-      priv->pdraw->swap_interval = (flags & VBLANK_FLAG_THROTTLE) != 0 ? 1 : 0;
-   }
-}
-
-
-/****************************************************************************/
-/**
  * Wrapper to call \c drmWaitVBlank.  The main purpose of this function is to
  * wrap the error message logging.  The error message should only be logged
  * the first time the \c drmWaitVBlank fails.  If \c drmWaitVBlank is
@@ -262,6 +248,71 @@ static int do_wait( drmVBlank * vbl, GLuint * vbl_seq, int fd )
 
 /****************************************************************************/
 /**
+ * Sets the default swap interval when the drawable is first bound to a
+ * direct rendering context.
+ */
+
+void driDrawableInitVBlank( __DRIdrawablePrivate *priv, GLuint flags,
+			    GLuint *vbl_seq )
+{
+   if ( priv->pdraw->swap_interval == (unsigned)-1 ) {
+      /* Get current vertical blank sequence */
+      drmVBlank vbl = { .request={ .type = DRM_VBLANK_RELATIVE, .sequence = 0 } };
+      do_wait( &vbl, vbl_seq, priv->driScreenPriv->fd );
+
+      priv->pdraw->swap_interval = (flags & (VBLANK_FLAG_THROTTLE |
+					     VBLANK_FLAG_SYNC)) != 0 ? 1 : 0;
+   }
+}
+
+
+/****************************************************************************/
+/**
+ * Returns the current swap interval of the given drawable.
+ */
+
+unsigned
+driGetVBlankInterval( const  __DRIdrawablePrivate *priv, GLuint flags )
+{
+   if ( (flags & VBLANK_FLAG_INTERVAL) != 0 ) {
+      /* this must have been initialized when the drawable was first bound
+       * to a direct rendering context. */
+      assert ( priv->pdraw->swap_interval != (unsigned)-1 );
+
+      return priv->pdraw->swap_interval;
+   }
+   else if ( (flags & (VBLANK_FLAG_THROTTLE | VBLANK_FLAG_SYNC)) != 0 ) {
+      return 1;
+   }
+   else {
+      return 0;
+   }
+}
+
+
+/****************************************************************************/
+/**
+ * Returns the current vertical blank sequence number of the given drawable.
+ */
+
+void
+driGetCurrentVBlank( const  __DRIdrawablePrivate *priv, GLuint flags,
+		     GLuint *vbl_seq )
+{
+   drmVBlank vbl;
+
+   vbl.request.type = DRM_VBLANK_RELATIVE;
+   if ( flags & VBLANK_FLAG_SECONDARY ) {
+      vbl.request.type |= DRM_VBLANK_SECONDARY;
+   }
+   vbl.request.sequence = 0;
+
+   (void) do_wait( &vbl, vbl_seq, priv->driScreenPriv->fd );
+}
+
+
+/****************************************************************************/
+/**
  * Waits for the vertical blank for use with glXSwapBuffers.
  * 
  * \param vbl_seq  Vertical blank sequence number (MSC) after the last buffer
@@ -282,7 +333,7 @@ driWaitForVBlank( const  __DRIdrawablePrivate *priv, GLuint * vbl_seq,
    unsigned   original_seq;
    unsigned   deadline;
    unsigned   interval;
-
+   unsigned   diff;
 
    *missed_deadline = GL_FALSE;
    if ( (flags & (VBLANK_FLAG_INTERVAL |
@@ -304,44 +355,40 @@ driWaitForVBlank( const  __DRIdrawablePrivate *priv, GLuint * vbl_seq,
     */
 
    original_seq = *vbl_seq;
+   interval = driGetVBlankInterval(priv, flags);
+   deadline = original_seq + interval;
 
-   vbl.request.sequence = ((flags & VBLANK_FLAG_SYNC) != 0) ? 1 : 0;
    vbl.request.type = DRM_VBLANK_RELATIVE;
-      
+   if ( flags & VBLANK_FLAG_SECONDARY ) {
+      vbl.request.type |= DRM_VBLANK_SECONDARY;
+   }
+   vbl.request.sequence = ((flags & VBLANK_FLAG_SYNC) != 0) ? 1 : 0;
+
    if ( do_wait( & vbl, vbl_seq, priv->driScreenPriv->fd ) != 0 ) {
       return -1;
    }
 
-	
-   vbl.request.type = DRM_VBLANK_ABSOLUTE;
+   diff = *vbl_seq - deadline;
 
-   if ( (flags & VBLANK_FLAG_INTERVAL) != 0 ) {
-      interval = priv->pdraw->swap_interval;
-      /* this must have been initialized when the drawable was first bound
-       * to a direct rendering context. */
-      assert ( interval != (unsigned)-1 );
-   }
-   else if ( (flags & VBLANK_FLAG_THROTTLE) != 0 ) {
-      interval = 1;
-   }
-   else {
-      interval = 0;
+   /* No need to wait again if we've already reached the target */
+   if (diff <= (1 << 23)) {
+      *missed_deadline = (flags & VBLANK_FLAG_SYNC) ? (diff > 0) : GL_TRUE;
+      return 0;
    }
 
+   /* Wait until the target vertical blank. */
+   vbl.request.type = DRM_VBLANK_ABSOLUTE;
+   if ( flags & VBLANK_FLAG_SECONDARY ) {
+      vbl.request.type |= DRM_VBLANK_SECONDARY;
+   }
+   vbl.request.sequence = deadline;
 
-   /* Wait until the next vertical blank.  If the interval is zero, then
-    * the deadline is one vertical blank after the previous wait.
-    */
-
-   vbl.request.sequence = original_seq + interval;
-   if ( *vbl_seq < vbl.request.sequence ) {
-      if ( do_wait( & vbl, vbl_seq, priv->driScreenPriv->fd ) != 0 ) {
-	 return -1;
-      }
+   if ( do_wait( & vbl, vbl_seq, priv->driScreenPriv->fd ) != 0 ) {
+      return -1;
    }
 
-   deadline = original_seq + ((interval == 0) ? 1 : interval);
-   *missed_deadline = ( *vbl_seq > deadline );
+   diff = *vbl_seq - deadline;
+   *missed_deadline = diff > 0 && diff <= (1 << 23);
 
    return 0;
 }
diff --git a/src/mesa/drivers/dri/common/vblank.h b/src/mesa/drivers/dri/common/vblank.h
index 3dc965def1a..ec83adc78dd 100644
--- a/src/mesa/drivers/dri/common/vblank.h
+++ b/src/mesa/drivers/dri/common/vblank.h
@@ -42,12 +42,19 @@
 					  */
 #define VBLANK_FLAG_NO_IRQ    (1U << 7)  /* DRM has no IRQ to wait on.
 					  */
+#define VBLANK_FLAG_SECONDARY (1U << 8)  /* Wait for secondary vblank.
+					  */
 
 extern int driGetMSC32( __DRIscreenPrivate * priv, int64_t * count );
 extern int driWaitForMSC32( __DRIdrawablePrivate *priv,
     int64_t target_msc, int64_t divisor, int64_t remainder, int64_t * msc );
 extern GLuint driGetDefaultVBlankFlags( const driOptionCache *optionCache );
-extern void driDrawableInitVBlank ( __DRIdrawablePrivate *priv, GLuint flags );
+extern void driDrawableInitVBlank ( __DRIdrawablePrivate *priv, GLuint flags,
+				    GLuint *vbl_seq );
+extern unsigned driGetVBlankInterval( const  __DRIdrawablePrivate *priv,
+				      GLuint flags );
+extern void driGetCurrentVBlank( const  __DRIdrawablePrivate *priv,
+				 GLuint flags, GLuint *vbl_seq );
 extern int driWaitForVBlank( const __DRIdrawablePrivate *priv,
     GLuint * vbl_seq, GLuint flags, GLboolean * missed_deadline );
 
diff --git a/src/mesa/drivers/dri/i915/intel_blit.c b/src/mesa/drivers/dri/i915/intel_blit.c
index e55f05bd1f5..af2f60312fb 100644
--- a/src/mesa/drivers/dri/i915/intel_blit.c
+++ b/src/mesa/drivers/dri/i915/intel_blit.c
@@ -54,6 +54,7 @@ intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
 {
 
    struct intel_context *intel;
+   const intelScreenPrivate *intelScreen;
    GLboolean missed_target;
    int64_t ust;
 
@@ -65,6 +66,41 @@ intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
    if (!intel)
       return;
 
+   intelScreen = intel->intelScreen;
+
+   if (!rect && !intel->swap_scheduled && intelScreen->drmMinor >= 6 &&
+	!(intel->vblank_flags & VBLANK_FLAG_NO_IRQ) &&
+	intelScreen->current_rotation == 0) {
+      unsigned int interval = driGetVBlankInterval(dPriv, intel->vblank_flags);
+      unsigned int target;
+      drm_i915_vblank_swap_t swap;
+ 
+      swap.drawable = dPriv->hHWDrawable;
+      swap.seqtype = DRM_VBLANK_ABSOLUTE;
+      target = swap.sequence = intel->vbl_seq + interval;
+
+      if (intel->vblank_flags & VBLANK_FLAG_SYNC) {
+	 swap.seqtype |= DRM_VBLANK_NEXTONMISS;
+      } else if (interval == 0) {
+	 goto noschedule;
+      }
+
+      if ( intel->vblank_flags & VBLANK_FLAG_SECONDARY ) {
+	 swap.seqtype |= DRM_VBLANK_SECONDARY;
+      }
+
+      if (!drmCommandWriteRead(intel->driFd, DRM_I915_VBLANK_SWAP, &swap,
+			       sizeof(swap))) {
+	 intel->swap_scheduled = 1;
+	 intel->vbl_seq = swap.sequence;
+	 swap.sequence -= target;
+	 missed_target = swap.sequence > 0 && swap.sequence <= (1 << 23);
+      }
+   } else {
+      intel->swap_scheduled = 0;
+   }
+noschedule:
+  
    if (intel->last_swap_fence) {
       driFenceFinish(intel->last_swap_fence, DRM_FENCE_TYPE_EXE, GL_TRUE);
       driFenceUnReference(intel->last_swap_fence);
@@ -73,110 +109,112 @@ intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
    intel->last_swap_fence = intel->first_swap_fence;
    intel->first_swap_fence = NULL;
 
-   if (!rect) {
-      driWaitForVBlank(dPriv, &intel->vbl_seq, intel->vblank_flags,
-                       &missed_target);
-   }
-
-
-   /* The LOCK_HARDWARE is required for the cliprects.  Buffer offsets
-    * should work regardless.
-    */
-   LOCK_HARDWARE(intel);
-
-   if (intel->driDrawable && intel->driDrawable->numClipRects) {
-      const intelScreenPrivate *intelScreen = intel->intelScreen;
-      struct gl_framebuffer *fb
-         = (struct gl_framebuffer *) dPriv->driverPrivate;
-      const struct intel_region *frontRegion
-         = intel_get_rb_region(fb, BUFFER_FRONT_LEFT);
-      const struct intel_region *backRegion
-         = intel_get_rb_region(fb, BUFFER_BACK_LEFT);
-      const int nbox = dPriv->numClipRects;
-      const drm_clip_rect_t *pbox = dPriv->pClipRects;
-      const int pitch = frontRegion->pitch;
-      const int cpp = frontRegion->cpp;
-      int BR13, CMD;
-      int i;
-
-      ASSERT(fb);
-      ASSERT(fb->Name == 0);    /* Not a user-created FBO */
-      ASSERT(frontRegion);
-      ASSERT(backRegion);
-      ASSERT(frontRegion->pitch == backRegion->pitch);
-      ASSERT(frontRegion->cpp == backRegion->cpp);
-
-      if (cpp == 2) {
-         BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24);
-         CMD = XY_SRC_COPY_BLT_CMD;
+   if (!intel->swap_scheduled) {
+      if (!rect) {
+	 driWaitForVBlank(dPriv, &intel->vbl_seq, intel->vblank_flags,
+			  &missed_target);
       }
-      else {
-         BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24) | (1 << 25);
-         CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
-                XY_SRC_COPY_BLT_WRITE_RGB);
-      }
-
-      for (i = 0; i < nbox; i++, pbox++) {
-         drm_clip_rect_t box;
-
-         if (pbox->x1 > pbox->x2 ||
-             pbox->y1 > pbox->y2 ||
-             pbox->x2 > intelScreen->width || pbox->y2 > intelScreen->height)
-            continue;
 
-         box = *pbox;
 
-         if (rect) {
-            if (rect->x1 > box.x1)
-               box.x1 = rect->x1;
-            if (rect->y1 > box.y1)
-               box.y1 = rect->y1;
-            if (rect->x2 < box.x2)
-               box.x2 = rect->x2;
-            if (rect->y2 < box.y2)
-               box.y2 = rect->y2;
-
-            if (box.x1 > box.x2 || box.y1 > box.y2)
-               continue;
-         }
-
-         BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
-         OUT_BATCH(CMD);
-         OUT_BATCH(BR13);
-         OUT_BATCH((pbox->y1 << 16) | pbox->x1);
-         OUT_BATCH((pbox->y2 << 16) | pbox->x2);
-
-         if (intel->sarea->pf_current_page == 0)
-            OUT_RELOC(frontRegion->buffer,
-                      DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
-                      DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
-         else
-            OUT_RELOC(backRegion->buffer,
-                      DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
-                      DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
-         OUT_BATCH((pbox->y1 << 16) | pbox->x1);
-         OUT_BATCH(BR13 & 0xffff);
-
-         if (intel->sarea->pf_current_page == 0)
-            OUT_RELOC(backRegion->buffer,
-                      DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
-                      DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0);
-         else
-            OUT_RELOC(frontRegion->buffer,
-                      DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
-                      DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0);
-
-         ADVANCE_BATCH();
+      /* The LOCK_HARDWARE is required for the cliprects.  Buffer offsets
+       * should work regardless.
+       */
+      LOCK_HARDWARE(intel);
+
+      if (intel->driDrawable && intel->driDrawable->numClipRects) {
+	 const intelScreenPrivate *intelScreen = intel->intelScreen;
+	 struct gl_framebuffer *fb
+	    = (struct gl_framebuffer *) dPriv->driverPrivate;
+	 const struct intel_region *frontRegion
+	    = intel_get_rb_region(fb, BUFFER_FRONT_LEFT);
+	 const struct intel_region *backRegion
+	    = intel_get_rb_region(fb, BUFFER_BACK_LEFT);
+	 const int nbox = dPriv->numClipRects;
+	 const drm_clip_rect_t *pbox = dPriv->pClipRects;
+	 const int pitch = frontRegion->pitch;
+	 const int cpp = frontRegion->cpp;
+	 int BR13, CMD;
+	 int i;
+
+	 ASSERT(fb);
+	 ASSERT(fb->Name == 0);    /* Not a user-created FBO */
+	 ASSERT(frontRegion);
+	 ASSERT(backRegion);
+	 ASSERT(frontRegion->pitch == backRegion->pitch);
+	 ASSERT(frontRegion->cpp == backRegion->cpp);
+
+	 if (cpp == 2) {
+	    BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24);
+	    CMD = XY_SRC_COPY_BLT_CMD;
+	 }
+	 else {
+	    BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24) | (1 << 25);
+	    CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
+		   XY_SRC_COPY_BLT_WRITE_RGB);
+	 }
+
+	 for (i = 0; i < nbox; i++, pbox++) {
+	    drm_clip_rect_t box;
+
+	    if (pbox->x1 > pbox->x2 ||
+		pbox->y1 > pbox->y2 ||
+		pbox->x2 > intelScreen->width || pbox->y2 > intelScreen->height)
+	       continue;
+
+	    box = *pbox;
+
+	    if (rect) {
+	       if (rect->x1 > box.x1)
+		  box.x1 = rect->x1;
+	       if (rect->y1 > box.y1)
+		  box.y1 = rect->y1;
+	       if (rect->x2 < box.x2)
+		  box.x2 = rect->x2;
+	       if (rect->y2 < box.y2)
+		  box.y2 = rect->y2;
+
+	       if (box.x1 > box.x2 || box.y1 > box.y2)
+		  continue;
+	    }
+
+	    BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
+	    OUT_BATCH(CMD);
+	    OUT_BATCH(BR13);
+	    OUT_BATCH((pbox->y1 << 16) | pbox->x1);
+	    OUT_BATCH((pbox->y2 << 16) | pbox->x2);
+
+	    if (intel->sarea->pf_current_page == 0)
+	       OUT_RELOC(frontRegion->buffer,
+			 DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
+			 DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
+	    else
+	       OUT_RELOC(backRegion->buffer,
+			 DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
+			 DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
+	    OUT_BATCH((pbox->y1 << 16) | pbox->x1);
+	    OUT_BATCH(BR13 & 0xffff);
+
+	    if (intel->sarea->pf_current_page == 0)
+	       OUT_RELOC(backRegion->buffer,
+			 DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
+			 DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0);
+	    else
+	       OUT_RELOC(frontRegion->buffer,
+			 DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
+			 DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0);
+
+	    ADVANCE_BATCH();
+	 }
+
+	 if (intel->first_swap_fence)
+	    driFenceUnReference(intel->first_swap_fence);
+	 intel->first_swap_fence = intel_batchbuffer_flush(intel->batch);
+	 driFenceReference(intel->first_swap_fence);
       }
 
-      if (intel->first_swap_fence)
-         driFenceUnReference(intel->first_swap_fence);
-      intel->first_swap_fence = intel_batchbuffer_flush(intel->batch);
-      driFenceReference(intel->first_swap_fence);
+      UNLOCK_HARDWARE(intel);
    }
 
-   UNLOCK_HARDWARE(intel);
-
    if (!rect) {
       intel->swap_count++;
       (*dri_interface->getUST) (&ust);
diff --git a/src/mesa/drivers/dri/i915/intel_buffers.c b/src/mesa/drivers/dri/i915/intel_buffers.c
index 34eedc31e65..3c9be8448ea 100644
--- a/src/mesa/drivers/dri/i915/intel_buffers.c
+++ b/src/mesa/drivers/dri/i915/intel_buffers.c
@@ -35,8 +35,10 @@
 #include "intel_regions.h"
 #include "intel_batchbuffer.h"
 #include "context.h"
+#include "utils.h"
 #include "framebuffer.h"
 #include "swrast/swrast.h"
+#include "vblank.h"
 
 
 /**
@@ -270,6 +272,35 @@ intelWindowMoved(struct intel_context *intel)
                                intel->driDrawable->w, intel->driDrawable->h);
    }
 
+   if (intel->intelScreen->driScrnPriv->ddxMinor >= 7 && intel->driDrawable) {
+      __DRIdrawablePrivate *dPriv = intel->driDrawable;
+      drmI830Sarea *sarea = intel->sarea;
+      drm_clip_rect_t drw_rect = { .x1 = dPriv->x, .x2 = dPriv->x + dPriv->w,
+				   .y1 = dPriv->y, .y2 = dPriv->y + dPriv->h };
+      drm_clip_rect_t pipeA_rect = { .x1 = sarea->pipeA_x, .y1 = sarea->pipeA_y,
+				     .x2 = sarea->pipeA_x + sarea->pipeA_w,
+				     .y2 = sarea->pipeA_y + sarea->pipeA_h };
+      drm_clip_rect_t pipeB_rect = { .x1 = sarea->pipeB_x, .y1 = sarea->pipeB_y,
+				     .x2 = sarea->pipeB_x + sarea->pipeB_w,
+				     .y2 = sarea->pipeB_y + sarea->pipeB_h };
+      GLint areaA = driIntersectArea( drw_rect, pipeA_rect );
+      GLint areaB = driIntersectArea( drw_rect, pipeB_rect );
+      GLuint flags = intel->vblank_flags;
+
+      if (areaB > areaA || (areaA == areaB && areaB > 0)) {
+	 flags = intel->vblank_flags | VBLANK_FLAG_SECONDARY;
+      } else {
+	 flags = intel->vblank_flags & ~VBLANK_FLAG_SECONDARY;
+      }
+
+      if (flags != intel->vblank_flags) {
+	 intel->vblank_flags = flags;
+	 driGetCurrentVBlank(dPriv, intel->vblank_flags, &intel->vbl_seq);
+      }
+   } else {
+      intel->vblank_flags &= ~VBLANK_FLAG_SECONDARY;
+   }
+
    /* Update hardware scissor */
    ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
                        ctx->Scissor.Width, ctx->Scissor.Height);
diff --git a/src/mesa/drivers/dri/i915/intel_context.c b/src/mesa/drivers/dri/i915/intel_context.c
index d956a20396c..7a23450841c 100644
--- a/src/mesa/drivers/dri/i915/intel_context.c
+++ b/src/mesa/drivers/dri/i915/intel_context.c
@@ -440,8 +440,7 @@ intelInitContext(struct intel_context *intel,
    intel->do_usleeps = (fthrottle_mode == DRI_CONF_FTHROTTLE_USLEEPS);
 
    intel->vblank_flags = (intel->intelScreen->irq_active != 0)
-      ? driGetDefaultVBlankFlags(&intelScreen->
-                                 optionCache) : VBLANK_FLAG_NO_IRQ;
+      ? driGetDefaultVBlankFlags(&intel->optionCache) : VBLANK_FLAG_NO_IRQ;
 
    (*dri_interface->getUST) (&intel->swap_ust);
    _math_matrix_ctr(&intel->ViewportMatrix);
@@ -465,7 +464,7 @@ intelInitContext(struct intel_context *intel,
       _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
       _mesa_enable_extension(ctx, "GL_S3_s3tc");
    }
-   else if (driQueryOptionb(&intelScreen->optionCache, "force_s3tc_enable")) {
+   else if (driQueryOptionb(&intel->optionCache, "force_s3tc_enable")) {
       _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
    }
 
@@ -553,7 +552,7 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
 
       if (intel->driDrawable != driDrawPriv) {
          /* Shouldn't the readbuffer be stored also? */
-         driDrawableInitVBlank(driDrawPriv, intel->vblank_flags);
+         driDrawableInitVBlank(driDrawPriv, intel->vblank_flags, &intel->vbl_seq);
 
          intel->driDrawable = driDrawPriv;
          intelWindowMoved(intel);
@@ -664,6 +663,17 @@ void LOCK_HARDWARE( struct intel_context *intel )
     _glthread_LOCK_MUTEX(lockMutex);
     assert(!intel->locked);
 
+    if (intel->swap_scheduled) {
+	drmVBlank vbl;
+	vbl.request.type = DRM_VBLANK_ABSOLUTE;
+	if ( intel->vblank_flags & VBLANK_FLAG_SECONDARY ) {
+	    vbl.request.type |= DRM_VBLANK_SECONDARY;
+	}
+	vbl.request.sequence = intel->vbl_seq;
+	drmWaitVBlank(intel->driFd, &vbl);
+	intel->swap_scheduled = 0;
+    }
+
     DRM_CAS(intel->driHwLock, intel->hHWContext,
         (DRM_LOCK_HELD|intel->hHWContext), __ret);
 
diff --git a/src/mesa/drivers/dri/i915/intel_context.h b/src/mesa/drivers/dri/i915/intel_context.h
index ef8993c69b5..fa3cf585718 100644
--- a/src/mesa/drivers/dri/i915/intel_context.h
+++ b/src/mesa/drivers/dri/i915/intel_context.h
@@ -285,6 +285,7 @@ struct intel_context
    GLuint swap_count;
    GLuint swap_missed_count;
 
+   GLuint swap_scheduled;
 };
 
 /* These are functions now:
diff --git a/src/mesa/drivers/dri/i915/intel_screen.c b/src/mesa/drivers/dri/i915/intel_screen.c
index 288fa237289..4f563a1c013 100644
--- a/src/mesa/drivers/dri/i915/intel_screen.c
+++ b/src/mesa/drivers/dri/i915/intel_screen.c
@@ -801,7 +801,7 @@ __driCreateNewScreen_20050727(__DRInativeDisplay * dpy, int scrn,
    __DRIscreenPrivate *psp;
    static const __DRIversion ddx_expected = { 1, 5, 0 };
    static const __DRIversion dri_expected = { 4, 0, 0 };
-   static const __DRIversion drm_expected = { 1, 6, 0 };
+   static const __DRIversion drm_expected = { 1, 7, 0 };
 
    dri_interface = interface;
 
diff --git a/src/mesa/drivers/dri/i915/server/i830_common.h b/src/mesa/drivers/dri/i915/server/i830_common.h
index 41b5cc3c01b..fb6ceaa52d4 100644
--- a/src/mesa/drivers/dri/i915/server/i830_common.h
+++ b/src/mesa/drivers/dri/i915/server/i830_common.h
@@ -112,6 +112,21 @@ typedef struct {
 	int rotated_size;
 	int rotated_pitch;
 	int virtualX, virtualY;
+
+	unsigned int front_tiled;
+	unsigned int back_tiled;
+	unsigned int depth_tiled;
+	unsigned int rotated_tiled;
+	unsigned int rotated2_tiled;
+
+	int pipeA_x;
+	int pipeA_y;
+	int pipeA_w;
+	int pipeA_h;
+	int pipeB_x;
+	int pipeB_y;
+	int pipeB_w;
+	int pipeB_h;
 } drmI830Sarea;
 
 /* Flags for perf_boxes
diff --git a/src/mesa/drivers/dri/mach64/mach64_context.c b/src/mesa/drivers/dri/mach64/mach64_context.c
index 717b9b9e8d8..03ec96a222e 100644
--- a/src/mesa/drivers/dri/mach64/mach64_context.c
+++ b/src/mesa/drivers/dri/mach64/mach64_context.c
@@ -308,7 +308,8 @@ mach64MakeCurrent( __DRIcontextPrivate *driContextPriv,
       }
 
       
-      driDrawableInitVBlank( driDrawPriv, newMach64Ctx->vblank_flags );
+      driDrawableInitVBlank( driDrawPriv, newMach64Ctx->vblank_flags,
+			     &newMach64Ctx->vbl_seq );
 
       if ( newMach64Ctx->driDrawable != driDrawPriv ) {
 	 newMach64Ctx->driDrawable = driDrawPriv;
diff --git a/src/mesa/drivers/dri/mga/mga_xmesa.c b/src/mesa/drivers/dri/mga/mga_xmesa.c
index 6450340a48c..73bcfcce738 100644
--- a/src/mesa/drivers/dri/mga/mga_xmesa.c
+++ b/src/mesa/drivers/dri/mga/mga_xmesa.c
@@ -878,7 +878,8 @@ mgaMakeCurrent(__DRIcontextPrivate *driContextPriv,
       mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate;
 
       if (mmesa->driDrawable != driDrawPriv) {
-	 driDrawableInitVBlank( driDrawPriv, mmesa->vblank_flags );
+	 driDrawableInitVBlank( driDrawPriv, mmesa->vblank_flags,
+				&mmesa->vbl_seq );
 	 mmesa->driDrawable = driDrawPriv;
 	 mmesa->dirty = ~0; 
 	 mmesa->dirty_cliprects = (MGA_FRONT|MGA_BACK); 
diff --git a/src/mesa/drivers/dri/r128/r128_context.c b/src/mesa/drivers/dri/r128/r128_context.c
index 2f30bd253bf..8ec027542ad 100644
--- a/src/mesa/drivers/dri/r128/r128_context.c
+++ b/src/mesa/drivers/dri/r128/r128_context.c
@@ -345,7 +345,8 @@ r128MakeCurrent( __DRIcontextPrivate *driContextPriv,
 	 newR128Ctx->dirty = R128_UPLOAD_ALL;
       }
 
-      driDrawableInitVBlank( driDrawPriv, newR128Ctx->vblank_flags );
+      driDrawableInitVBlank( driDrawPriv, newR128Ctx->vblank_flags,
+			     &newR128Ctx->vbl_seq );
       newR128Ctx->driDrawable = driDrawPriv;
 
       _mesa_make_current( newR128Ctx->glCtx,
diff --git a/src/mesa/drivers/dri/r200/r200_context.c b/src/mesa/drivers/dri/r200/r200_context.c
index 0e85b9680ce..1ef7e749833 100644
--- a/src/mesa/drivers/dri/r200/r200_context.c
+++ b/src/mesa/drivers/dri/r200/r200_context.c
@@ -695,7 +695,8 @@ r200MakeCurrent( __DRIcontextPrivate *driContextPriv,
 	 fprintf(stderr, "%s ctx %p\n", __FUNCTION__, (void *)newCtx->glCtx);
 
       if ( newCtx->dri.drawable != driDrawPriv ) {
-	 driDrawableInitVBlank( driDrawPriv, newCtx->vblank_flags );
+	 driDrawableInitVBlank( driDrawPriv, newCtx->vblank_flags,
+				&newCtx->vbl_seq );
 	 newCtx->dri.drawable = driDrawPriv;
 	 r200UpdateWindow( newCtx->glCtx );
 	 r200UpdateViewportOffset( newCtx->glCtx );
diff --git a/src/mesa/drivers/dri/r300/radeon_context.c b/src/mesa/drivers/dri/r300/radeon_context.c
index d886788b341..bea219742d6 100644
--- a/src/mesa/drivers/dri/r300/radeon_context.c
+++ b/src/mesa/drivers/dri/r300/radeon_context.c
@@ -287,7 +287,8 @@ GLboolean radeonMakeCurrent(__DRIcontextPrivate * driContextPriv,
 
 		if (radeon->dri.drawable != driDrawPriv) {
 			driDrawableInitVBlank(driDrawPriv,
-					      radeon->vblank_flags);
+					      radeon->vblank_flags,
+					      &radeon->vbl_seq);
 			radeon->dri.drawable = driDrawPriv;
 			
 			r300UpdateWindow(radeon->glCtx);
diff --git a/src/mesa/drivers/dri/radeon/radeon_context.c b/src/mesa/drivers/dri/radeon/radeon_context.c
index 21161d2f69d..7772715b91b 100644
--- a/src/mesa/drivers/dri/radeon/radeon_context.c
+++ b/src/mesa/drivers/dri/radeon/radeon_context.c
@@ -625,7 +625,8 @@ radeonMakeCurrent( __DRIcontextPrivate *driContextPriv,
 
       if ( newCtx->dri.drawable != driDrawPriv ) {
          /* XXX we may need to validate the drawable here!!! */
-	 driDrawableInitVBlank( driDrawPriv, newCtx->vblank_flags );
+	 driDrawableInitVBlank( driDrawPriv, newCtx->vblank_flags,
+				&newCtx->vbl_seq );
 	 newCtx->dri.drawable = driDrawPriv;
 	 radeonUpdateWindow( newCtx->glCtx );
 	 radeonUpdateViewportOffset( newCtx->glCtx );
diff --git a/src/mesa/drivers/dri/unichrome/via_context.c b/src/mesa/drivers/dri/unichrome/via_context.c
index ffde1b66b76..2459336bd66 100644
--- a/src/mesa/drivers/dri/unichrome/via_context.c
+++ b/src/mesa/drivers/dri/unichrome/via_context.c
@@ -815,7 +815,8 @@ viaMakeCurrent(__DRIcontextPrivate *driContextPriv,
         readBuffer = (GLframebuffer *)driReadPriv->driverPrivate;
 
 	if ( vmesa->driDrawable != driDrawPriv ) {
-	   driDrawableInitVBlank( driDrawPriv, vmesa->vblank_flags );
+	   driDrawableInitVBlank( driDrawPriv, vmesa->vblank_flags,
+				  &vmesa->vbl_seq );
 	   vmesa->driDrawable = driDrawPriv;
 	   if ( ! calculate_buffer_parameters( vmesa, drawBuffer ) ) {
 	      return GL_FALSE;