Merge branch 'gallium-tex-surface' into gallium-0.1

Conflicts:

	src/gallium/include/pipe/p_util.h

26 files changed, 6968 insertions, 0 deletions

diff --git a/src/gallium/winsys/egl_drm/intel/Makefile b/src/gallium/winsys/egl_drm/intel/Makefile
new file mode 100644
index 0000000000..5778ba77c3
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/Makefile
@@ -0,0 +1,40 @@
+
+TOP = ../../../../..
+include $(TOP)/configs/current
+
+LIBNAME = EGL_i915.so
+
+PIPE_DRIVERS = \
+	$(TOP)/src/gallium/drivers/softpipe/libsoftpipe.a \
+	$(TOP)/src/gallium/drivers/i915simple/libi915simple.a
+
+DRIVER_SOURCES = \
+	intel_winsys_pipe.c \
+	intel_winsys_softpipe.c \
+	intel_winsys_i915.c \
+	intel_batchbuffer.c \
+	intel_swapbuffers.c \
+	intel_context.c \
+	intel_lock.c \
+	intel_screen.c \
+	ws_dri_bufmgr.c \
+	ws_dri_drmpool.c \
+	ws_dri_fencemgr.c \
+	ws_dri_mallocpool.c \
+	ws_dri_slabpool.c \
+	intel_egl.c
+
+C_SOURCES = \
+	$(COMMON_GALLIUM_SOURCES) \
+	$(DRIVER_SOURCES)
+
+ASM_SOURCES = 
+
+DRIVER_DEFINES = -I$(TOP)/src/mesa/drivers/dri/intel $(shell pkg-config libdrm --atleast-version=2.3.1 \
+				&& echo "-DDRM_VBLANK_FLIP=DRM_VBLANK_FLIP")
+
+include ../Makefile.template
+
+intel_tex_layout.o: $(TOP)/src/mesa/drivers/dri/intel/intel_tex_layout.c
+
+symlinks:
diff --git a/src/gallium/winsys/egl_drm/intel/SConscript b/src/gallium/winsys/egl_drm/intel/SConscript
new file mode 100644
index 0000000000..0ad19d42a8
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/SConscript
@@ -0,0 +1,39 @@
+Import('*')
+
+env = drienv.Clone()
+
+env.Append(CPPPATH = [
+	'../intel',
+	'server'
+])
+
+#MINIGLX_SOURCES = server/intel_dri.c
+
+DRIVER_SOURCES = [
+	'intel_winsys_pipe.c',
+	'intel_winsys_softpipe.c',
+	'intel_winsys_i915.c',
+	'intel_batchbuffer.c',
+	'intel_swapbuffers.c',
+	'intel_context.c',
+	'intel_lock.c',
+	'intel_screen.c',
+	'intel_batchpool.c',
+]
+
+sources = \
+	COMMON_GALLIUM_SOURCES + \
+	COMMON_BM_SOURCES + \
+	DRIVER_SOURCES
+
+drivers = [
+	softpipe,
+	i915simple
+]
+
+# TODO: write a wrapper function http://www.scons.org/wiki/WrapperFunctions
+env.SharedLibrary(
+	target ='i915tex_dri.so',
+	source = sources,
+	LIBS = drivers + mesa + auxiliaries + env['LIBS'],
+)
\ No newline at end of file
diff --git a/src/gallium/winsys/egl_drm/intel/intel_batchbuffer.c b/src/gallium/winsys/egl_drm/intel/intel_batchbuffer.c
new file mode 100644
index 0000000000..7ffa05a6e6
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_batchbuffer.c
@@ -0,0 +1,465 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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 "intel_batchbuffer.h"
+#include "intel_context.h"
+#include "intel_egl.h"
+
+#include <errno.h>
+
+#if 0
+static void
+intel_dump_batchbuffer(GLuint offset, GLuint * ptr, GLuint count)
+{
+   int i;
+   fprintf(stderr, "\n\n\nSTART BATCH (%d dwords):\n", count / 4);
+   for (i = 0; i < count / 4; i += 4)
+      fprintf(stderr, "0x%x:\t0x%08x 0x%08x 0x%08x 0x%08x\n",
+              offset + i * 4, ptr[i], ptr[i + 1], ptr[i + 2], ptr[i + 3]);
+   fprintf(stderr, "END BATCH\n\n\n");
+}
+#endif
+
+static void 
+intel_realloc_relocs(struct intel_batchbuffer *batch, int num_relocs)
+{
+    unsigned long size = num_relocs * I915_RELOC0_STRIDE + I915_RELOC_HEADER;
+    
+    size *= sizeof(uint32_t);
+    batch->reloc = realloc(batch->reloc, size);
+    batch->reloc_size = num_relocs;
+}
+
+
+void
+intel_batchbuffer_reset(struct intel_batchbuffer *batch)
+{
+   /*
+    * Get a new, free batchbuffer.
+    */
+   drmBO *bo;
+   struct drm_bo_info_req *req;
+   int ret;
+
+   driBOUnrefUserList(batch->list);
+   driBOResetList(batch->list);
+
+   batch->size = 4096; // ZZZ JB batch->intel->intelScreen->maxBatchSize;
+   ret = driBOData(batch->buffer, batch->size, NULL, NULL, 0);
+   assert(!ret);
+
+   /*
+    * Add the batchbuffer to the validate list.
+    */
+
+   driBOAddListItem(batch->list, batch->buffer,
+		    DRM_BO_FLAG_EXE | DRM_BO_FLAG_MEM_TT,
+		    DRM_BO_FLAG_EXE | DRM_BO_MASK_MEM,
+		    &batch->dest_location, &batch->node);
+
+   req = &batch->node->bo_arg.d.req.bo_req;
+
+   /*
+    * Set up information needed for us to make relocations
+    * relative to the underlying drm buffer objects.
+    */
+
+   driReadLockKernelBO();
+   bo = driBOKernel(batch->buffer);
+   req->presumed_offset = (uint64_t) bo->offset;
+   req->hint = DRM_BO_HINT_PRESUMED_OFFSET;
+   batch->drmBOVirtual = (uint8_t *) bo->virtual;
+   driReadUnlockKernelBO();
+
+   /*
+    * Adjust the relocation buffer size.
+    */
+
+   if (batch->reloc_size > INTEL_MAX_RELOCS ||
+       batch->reloc == NULL) 
+     intel_realloc_relocs(batch, INTEL_DEFAULT_RELOCS);
+   
+   assert(batch->reloc != NULL);
+   batch->reloc[0] = 0; /* No relocs yet. */
+   batch->reloc[1] = 1; /* Reloc type 1 */
+   batch->reloc[2] = 0; /* Only a single relocation list. */
+   batch->reloc[3] = 0; /* Only a single relocation list. */
+
+   batch->map = driBOMap(batch->buffer, DRM_BO_FLAG_WRITE, 0);
+   batch->poolOffset = driBOPoolOffset(batch->buffer);
+   batch->ptr = batch->map;
+   batch->dirty_state = ~0;
+   batch->nr_relocs = 0;
+   batch->flags = 0;
+   batch->id = 0;//batch->intel->intelScreen->batch_id++;
+}
+
+/*======================================================================
+ * Public functions
+ */
+struct intel_batchbuffer *
+intel_batchbuffer_alloc(struct intel_screen *intel_screen)
+{
+   struct intel_batchbuffer *batch = calloc(sizeof(*batch), 1);
+
+   batch->intel_screen = intel_screen;
+
+   driGenBuffers(intel_screen->batchPool, "batchbuffer", 1,
+                 &batch->buffer, 4096,
+                 DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_EXE, 0);
+   batch->last_fence = NULL;
+   batch->list = driBOCreateList(20);
+   batch->reloc = NULL;
+   intel_batchbuffer_reset(batch);
+   return batch;
+}
+
+void
+intel_batchbuffer_free(struct intel_batchbuffer *batch)
+{
+   if (batch->last_fence) {
+      driFenceFinish(batch->last_fence,
+		     DRM_FENCE_TYPE_EXE, GL_FALSE);
+      driFenceUnReference(&batch->last_fence);
+   }
+   if (batch->map) {
+      driBOUnmap(batch->buffer);
+      batch->map = NULL;
+   }
+   driBOUnReference(batch->buffer);
+   driBOFreeList(batch->list);
+   if (batch->reloc)
+       free(batch->reloc);
+   batch->buffer = NULL;
+   free(batch);
+}
+
+void
+intel_offset_relocation(struct intel_batchbuffer *batch,
+			unsigned pre_add,
+			struct _DriBufferObject *driBO,
+			uint64_t val_flags,
+			uint64_t val_mask)
+{
+    int itemLoc;
+    struct _drmBONode *node;
+    uint32_t *reloc;
+    struct drm_bo_info_req *req;
+    
+    driBOAddListItem(batch->list, driBO, val_flags, val_mask,
+		     &itemLoc, &node);
+    req = &node->bo_arg.d.req.bo_req;
+
+    if (!(req->hint &  DRM_BO_HINT_PRESUMED_OFFSET)) {
+
+	/*
+	 * Stop other threads from tampering with the underlying
+	 * drmBO while we're reading its offset.
+	 */
+
+	driReadLockKernelBO();
+	req->presumed_offset = (uint64_t) driBOKernel(driBO)->offset;
+	driReadUnlockKernelBO();
+	req->hint = DRM_BO_HINT_PRESUMED_OFFSET;
+    }
+    
+    pre_add += driBOPoolOffset(driBO);
+
+    if (batch->nr_relocs == batch->reloc_size)
+	intel_realloc_relocs(batch, batch->reloc_size * 2);
+
+    reloc = batch->reloc + 
+	(I915_RELOC_HEADER + batch->nr_relocs * I915_RELOC0_STRIDE);
+
+    reloc[0] = ((uint8_t *)batch->ptr - batch->drmBOVirtual);
+    intel_batchbuffer_emit_dword(batch, req->presumed_offset + pre_add);
+    reloc[1] = pre_add;
+    reloc[2] = itemLoc;
+    reloc[3] = batch->dest_location;
+    batch->nr_relocs++;
+}
+
+static void
+i915_drm_copy_reply(const struct drm_bo_info_rep * rep, drmBO * buf)
+{
+    buf->handle = rep->handle;
+    buf->flags = rep->flags;
+    buf->size = rep->size;
+    buf->offset = rep->offset;
+    buf->mapHandle = rep->arg_handle;
+    buf->proposedFlags = rep->proposed_flags;
+    buf->start = rep->buffer_start;
+    buf->fenceFlags = rep->fence_flags;
+    buf->replyFlags = rep->rep_flags;
+    buf->pageAlignment = rep->page_alignment;
+}
+
+static int 
+i915_execbuf(struct intel_batchbuffer *batch,
+	     GLuint used,
+	     GLboolean ignore_cliprects,
+	     drmBOList *list,
+	     struct drm_i915_execbuffer *ea)
+{
+   struct intel_screen *intel_screen = batch->intel_screen;
+   drmBONode *node;
+   drmMMListHead *l;
+   struct drm_i915_op_arg *arg, *first;
+   struct drm_bo_op_req *req;
+   struct drm_bo_info_rep *rep;
+   uint64_t *prevNext = NULL;
+   drmBO *buf;
+   int ret = 0;
+   uint32_t count = 0;
+
+   first = NULL;
+   for (l = list->list.next; l != &list->list; l = l->next) {
+      node = DRMLISTENTRY(drmBONode, l, head);
+      
+      arg = &node->bo_arg;
+      req = &arg->d.req;
+      
+      if (!first)
+	 first = arg;
+      
+      if (prevNext)
+	 *prevNext = (unsigned long)arg;
+      
+      prevNext = &arg->next;
+      req->bo_req.handle = node->buf->handle;
+      req->op = drm_bo_validate;
+      req->bo_req.flags = node->arg0;
+      req->bo_req.mask = node->arg1;
+      req->bo_req.hint |= 0;
+      count++;
+   }
+
+   memset(ea, 0, sizeof(*ea));
+   ea->num_buffers = count;
+   ea->batch.start = batch->poolOffset;
+   ea->batch.used = used;
+#if 0 /* ZZZ JB: no cliprects used */
+   ea->batch.cliprects = intel->pClipRects;
+   ea->batch.num_cliprects = ignore_cliprects ? 0 : intel->numClipRects;
+   ea->batch.DR1 = 0;
+   ea->batch.DR4 = 0;((((GLuint) intel->drawX) & 0xffff) |
+		   (((GLuint) intel->drawY) << 16));
+#else
+   ea->batch.cliprects = NULL;
+   ea->batch.num_cliprects = 0;
+   ea->batch.DR1 = 0;
+   ea->batch.DR4 = 0;
+#endif
+   ea->fence_arg.flags = DRM_I915_FENCE_FLAG_FLUSHED;
+   ea->ops_list = (unsigned long) first;
+   first->reloc_ptr = (unsigned long) batch->reloc;
+   batch->reloc[0] = batch->nr_relocs;
+
+   //return -EFAULT;
+   do {
+      ret = drmCommandWriteRead(intel_screen->device->drmFD, DRM_I915_EXECBUFFER, ea,
+				sizeof(*ea));
+   } while (ret == -EAGAIN);
+
+   if (ret != 0) {
+      printf("%s somebody set us up the bomb\n", __FUNCTION__);
+      return ret;
+   }
+
+   for (l = list->list.next; l != &list->list; l = l->next) {
+      node = DRMLISTENTRY(drmBONode, l, head);
+      arg = &node->bo_arg;
+      rep = &arg->d.rep.bo_info;
+
+      if (!arg->handled) {
+	 return -EFAULT;
+      }
+      if (arg->d.rep.ret)
+	 return arg->d.rep.ret;
+
+      buf = node->buf;
+      i915_drm_copy_reply(rep, buf);
+   }
+   return 0;
+}
+
+/* TODO: Push this whole function into bufmgr.
+ */
+static struct _DriFenceObject *
+do_flush_locked(struct intel_batchbuffer *batch,
+                GLuint used,
+                GLboolean ignore_cliprects, GLboolean allow_unlock)
+{
+   struct intel_screen *intel_screen = batch->intel_screen;
+   struct _DriFenceObject *fo;
+   drmFence fence;
+   drmBOList *boList;
+   struct drm_i915_execbuffer ea;
+   int ret = 0;
+
+   driBOValidateUserList(batch->list);
+   boList = driGetdrmBOList(batch->list);
+
+#if 0 /* ZZZ JB Allways run */
+   if (!(intel->numClipRects == 0 && !ignore_cliprects)) {
+#else
+   if (1) {
+#endif
+      ret = i915_execbuf(batch, used, ignore_cliprects, boList, &ea);
+   } else {
+     driPutdrmBOList(batch->list);
+     fo = NULL;
+     goto out;
+   }
+   driPutdrmBOList(batch->list);
+   if (ret)
+      abort();
+
+   if (ea.fence_arg.error != 0) {
+
+     /*
+      * The hardware has been idled by the kernel.
+      * Don't fence the driBOs.
+      */
+
+       if (batch->last_fence)
+	   driFenceUnReference(&batch->last_fence);
+#if 0 /* ZZZ JB: no _mesa_* funcs in gallium */
+       _mesa_printf("fence error\n");
+#endif
+       batch->last_fence = NULL;
+       fo = NULL;
+       goto out;
+   }
+
+   fence.handle = ea.fence_arg.handle;
+   fence.fence_class = ea.fence_arg.fence_class;
+   fence.type = ea.fence_arg.type;
+   fence.flags = ea.fence_arg.flags;
+   fence.signaled = ea.fence_arg.signaled;
+
+   fo = driBOFenceUserList(intel_screen->mgr, batch->list,
+			   "SuperFence", &fence);
+
+   if (driFenceType(fo) & DRM_I915_FENCE_TYPE_RW) {
+       if (batch->last_fence)
+	   driFenceUnReference(&batch->last_fence);
+   /*
+	* FIXME: Context last fence??
+	*/
+       batch->last_fence = fo;
+       driFenceReference(fo);
+   } 
+ out:
+#if 0 /* ZZZ JB: fix this */
+   intel->vtbl.lost_hardware(intel);
+#else
+#endif
+   return fo;
+}
+
+
+struct _DriFenceObject *
+intel_batchbuffer_flush(struct intel_batchbuffer *batch)
+{
+   //struct intel_context *intel = batch->intel;
+   GLuint used = batch->ptr - batch->map;
+   //GLboolean was_locked = 1;
+   struct _DriFenceObject *fence;
+
+   if (used == 0) {
+      driFenceReference(batch->last_fence);
+      return batch->last_fence;
+   }
+
+   /* Add the MI_BATCH_BUFFER_END.  Always add an MI_FLUSH - this is a
+    * performance drain that we would like to avoid.
+    */
+#if 0 /* ZZZ JB: what should we do here? */
+   if (used & 4) {
+      ((int *) batch->ptr)[0] = intel->vtbl.flush_cmd();
+      ((int *) batch->ptr)[1] = 0;
+      ((int *) batch->ptr)[2] = MI_BATCH_BUFFER_END;
+      used += 12;
+   }
+   else {
+      ((int *) batch->ptr)[0] = intel->vtbl.flush_cmd();
+      ((int *) batch->ptr)[1] = MI_BATCH_BUFFER_END;
+      used += 8;
+   }
+#else
+   if (used & 4) {
+      ((int *) batch->ptr)[0] = ((0<<29)|(4<<23)); // MI_FLUSH;
+      ((int *) batch->ptr)[1] = 0;
+      ((int *) batch->ptr)[2] = (0xA<<23); // MI_BATCH_BUFFER_END;
+      used += 12;
+   }
+   else {
+      ((int *) batch->ptr)[0] = ((0<<29)|(4<<23)); // MI_FLUSH;
+      ((int *) batch->ptr)[1] = (0xA<<23); // MI_BATCH_BUFFER_END;
+      used += 8;
+   }
+#endif
+   driBOUnmap(batch->buffer);
+   batch->ptr = NULL;
+   batch->map = NULL;
+
+   /* TODO: Just pass the relocation list and dma buffer up to the
+    * kernel.
+    */
+/*   if (!was_locked)
+      LOCK_HARDWARE(intel);*/
+
+   fence = do_flush_locked(batch, used, !(batch->flags & INTEL_BATCH_CLIPRECTS),
+			   GL_FALSE);
+
+/*   if (!was_locked)
+      UNLOCK_HARDWARE(intel);*/
+
+   /* Reset the buffer:
+    */
+   intel_batchbuffer_reset(batch);
+   return fence;
+}
+
+void
+intel_batchbuffer_finish(struct intel_batchbuffer *batch)
+{
+   struct _DriFenceObject *fence = intel_batchbuffer_flush(batch);
+   driFenceFinish(fence, driFenceType(fence), GL_FALSE);
+   driFenceUnReference(&fence);
+}
+
+void
+intel_batchbuffer_data(struct intel_batchbuffer *batch,
+                       const void *data, GLuint bytes, GLuint flags)
+{
+   assert((bytes & 3) == 0);
+   intel_batchbuffer_require_space(batch, bytes, flags);
+   memcpy(batch->ptr, data, bytes);
+   batch->ptr += bytes;
+}
diff --git a/src/gallium/winsys/egl_drm/intel/intel_batchbuffer.h b/src/gallium/winsys/egl_drm/intel/intel_batchbuffer.h
new file mode 100644
index 0000000000..6d35cf8b96
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_batchbuffer.h
@@ -0,0 +1,133 @@
+#ifndef INTEL_BATCHBUFFER_H
+#define INTEL_BATCHBUFFER_H
+
+#include "mtypes.h"
+#include "ws_dri_bufmgr.h"
+
+struct intel_screen;
+
+#define BATCH_SZ 16384
+#define BATCH_RESERVED 16
+
+#define INTEL_DEFAULT_RELOCS 100
+#define INTEL_MAX_RELOCS 400
+
+#define INTEL_BATCH_NO_CLIPRECTS 0x1
+#define INTEL_BATCH_CLIPRECTS    0x2
+
+struct intel_batchbuffer
+{
+   struct bufmgr *bm;
+   struct intel_screen *intel_screen;
+
+   struct _DriBufferObject *buffer;
+   struct _DriFenceObject *last_fence;
+   GLuint flags;
+
+   struct _DriBufferList *list;
+   GLuint list_count;
+   GLubyte *map;
+   GLubyte *ptr;
+
+   uint32_t *reloc;
+   GLuint reloc_size;
+   GLuint nr_relocs;
+
+   GLuint size;
+
+   GLuint dirty_state;
+   GLuint id;
+
+  uint32_t poolOffset;
+  uint8_t *drmBOVirtual;
+  struct _drmBONode *node; /* Validation list node for this buffer */
+  int dest_location;     /* Validation list sequence for this buffer */
+};
+
+struct intel_batchbuffer *intel_batchbuffer_alloc(struct intel_screen
+                                                  *intel);
+
+void intel_batchbuffer_free(struct intel_batchbuffer *batch);
+
+
+void intel_batchbuffer_finish(struct intel_batchbuffer *batch);
+
+struct _DriFenceObject *intel_batchbuffer_flush(struct intel_batchbuffer
+                                                *batch);
+
+void intel_batchbuffer_reset(struct intel_batchbuffer *batch);
+
+
+/* Unlike bmBufferData, this currently requires the buffer be mapped.
+ * Consider it a convenience function wrapping multple
+ * intel_buffer_dword() calls.
+ */
+void intel_batchbuffer_data(struct intel_batchbuffer *batch,
+                            const void *data, GLuint bytes, GLuint flags);
+
+void intel_batchbuffer_release_space(struct intel_batchbuffer *batch,
+                                     GLuint bytes);
+
+void
+intel_offset_relocation(struct intel_batchbuffer *batch,
+			unsigned pre_add,
+			struct _DriBufferObject *driBO,
+			uint64_t val_flags,
+			uint64_t val_mask);
+
+/* Inline functions - might actually be better off with these
+ * non-inlined.  Certainly better off switching all command packets to
+ * be passed as structs rather than dwords, but that's a little bit of
+ * work...
+ */
+static INLINE GLuint
+intel_batchbuffer_space(struct intel_batchbuffer *batch)
+{
+   return (batch->size - BATCH_RESERVED) - (batch->ptr - batch->map);
+}
+
+
+static INLINE void
+intel_batchbuffer_emit_dword(struct intel_batchbuffer *batch, GLuint dword)
+{
+   assert(batch->map);
+   assert(intel_batchbuffer_space(batch) >= 4);
+   *(GLuint *) (batch->ptr) = dword;
+   batch->ptr += 4;
+}
+
+static INLINE void
+intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
+                                GLuint sz, GLuint flags)
+{
+   struct _DriFenceObject *fence;
+
+   assert(sz < batch->size - 8);
+   if (intel_batchbuffer_space(batch) < sz ||
+       (batch->flags != 0 && flags != 0 && batch->flags != flags)) {
+      fence = intel_batchbuffer_flush(batch);
+      driFenceUnReference(&fence);
+   }
+
+   batch->flags |= flags;
+}
+
+/* Here are the crusty old macros, to be removed:
+ */
+#define BATCH_LOCALS
+
+#define BEGIN_BATCH(n, flags) do {				\
+   assert(!intel->prim.flush);					\
+   intel_batchbuffer_require_space(intel->batch, (n)*4, flags);	\
+} while (0)
+
+#define OUT_BATCH(d)  intel_batchbuffer_emit_dword(intel->batch, d)
+
+#define OUT_RELOC(buf,flags,mask,delta) do { 				\
+   assert((delta) >= 0);							\
+   intel_offset_relocation(intel->batch, delta, buf, flags, mask); \
+} while (0)
+
+#define ADVANCE_BATCH() do { } while(0)
+
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_context.c b/src/gallium/winsys/egl_drm/intel/intel_context.c
new file mode 100644
index 0000000000..394a40d714
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_context.c
@@ -0,0 +1,366 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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 "intel_screen.h"
+#include "intel_context.h"
+#include "intel_swapbuffers.h"
+#include "intel_winsys.h"
+#include "intel_batchbuffer.h"
+
+#include "state_tracker/st_public.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_context.h"
+#include "intel_egl.h"
+#include "utils.h"
+
+#ifdef DEBUG
+int __intel_debug = 0;
+#endif
+
+
+#define need_GL_ARB_multisample
+#define need_GL_ARB_point_parameters
+#define need_GL_ARB_texture_compression
+#define need_GL_ARB_vertex_buffer_object
+#define need_GL_ARB_vertex_program
+#define need_GL_ARB_window_pos
+#define need_GL_EXT_blend_color
+#define need_GL_EXT_blend_equation_separate
+#define need_GL_EXT_blend_func_separate
+#define need_GL_EXT_blend_minmax
+#define need_GL_EXT_cull_vertex
+#define need_GL_EXT_fog_coord
+#define need_GL_EXT_framebuffer_object
+#define need_GL_EXT_multi_draw_arrays
+#define need_GL_EXT_secondary_color
+#define need_GL_NV_vertex_program
+#include "extension_helper.h"
+
+
+/**
+ * Extension strings exported by the intel driver.
+ *
+ * \note
+ * It appears that ARB_texture_env_crossbar has "disappeared" compared to the
+ * old i830-specific driver.
+ */
+const struct dri_extension card_extensions[] = {
+   {"GL_ARB_multisample", GL_ARB_multisample_functions},
+   {"GL_ARB_multitexture", NULL},
+   {"GL_ARB_point_parameters", GL_ARB_point_parameters_functions},
+   {"GL_ARB_texture_border_clamp", NULL},
+   {"GL_ARB_texture_compression", GL_ARB_texture_compression_functions},
+   {"GL_ARB_texture_cube_map", NULL},
+   {"GL_ARB_texture_env_add", NULL},
+   {"GL_ARB_texture_env_combine", NULL},
+   {"GL_ARB_texture_env_dot3", NULL},
+   {"GL_ARB_texture_mirrored_repeat", NULL},
+   {"GL_ARB_texture_rectangle", NULL},
+   {"GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions},
+   {"GL_ARB_pixel_buffer_object", NULL},
+   {"GL_ARB_vertex_program", GL_ARB_vertex_program_functions},
+   {"GL_ARB_window_pos", GL_ARB_window_pos_functions},
+   {"GL_EXT_blend_color", GL_EXT_blend_color_functions},
+   {"GL_EXT_blend_equation_separate", GL_EXT_blend_equation_separate_functions},
+   {"GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions},
+   {"GL_EXT_blend_minmax", GL_EXT_blend_minmax_functions},
+   {"GL_EXT_blend_subtract", NULL},
+   {"GL_EXT_cull_vertex", GL_EXT_cull_vertex_functions},
+   {"GL_EXT_fog_coord", GL_EXT_fog_coord_functions},
+   {"GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions},
+   {"GL_EXT_multi_draw_arrays", GL_EXT_multi_draw_arrays_functions},
+   {"GL_EXT_packed_depth_stencil", NULL},
+   {"GL_EXT_pixel_buffer_object", NULL},
+   {"GL_EXT_secondary_color", GL_EXT_secondary_color_functions},
+   {"GL_EXT_stencil_wrap", NULL},
+   {"GL_EXT_texture_edge_clamp", NULL},
+   {"GL_EXT_texture_env_combine", NULL},
+   {"GL_EXT_texture_env_dot3", NULL},
+   {"GL_EXT_texture_filter_anisotropic", NULL},
+   {"GL_EXT_texture_lod_bias", NULL},
+   {"GL_3DFX_texture_compression_FXT1", NULL},
+   {"GL_APPLE_client_storage", NULL},
+   {"GL_MESA_pack_invert", NULL},
+   {"GL_MESA_ycbcr_texture", NULL},
+   {"GL_NV_blend_square", NULL},
+   {"GL_NV_vertex_program", GL_NV_vertex_program_functions},
+   {"GL_NV_vertex_program1_1", NULL},
+   {"GL_SGIS_generate_mipmap", NULL },
+   {NULL, NULL}
+};
+
+int
+intel_create_context(struct egl_drm_context *eglCon, const __GLcontextModes *visual, void *sharedContextPrivate)
+{
+	struct intel_context *iCon = CALLOC_STRUCT(intel_context);
+	struct intel_screen *iScrn = (struct intel_screen *)eglCon->device->priv;
+	struct pipe_context *pipe;
+	struct st_context *st_share = NULL;
+
+	eglCon->priv = iCon;
+
+	iCon->intel_screen = iScrn;
+	iCon->egl_context = eglCon;
+	iCon->egl_device = eglCon->device;
+
+	iCon->batch = intel_batchbuffer_alloc(iScrn);
+	iCon->last_swap_fence = NULL;
+	iCon->first_swap_fence = NULL;
+
+	pipe = intel_create_i915simple(iCon, iScrn->winsys);
+//	pipe = intel_create_softpipe(iCon, iScrn->winsys);
+
+	pipe->priv = iCon;
+
+	iCon->st = st_create_context(pipe, visual, st_share);
+	return TRUE;
+}
+
+void
+intel_make_current(struct egl_drm_context *context, struct egl_drm_drawable *draw, struct egl_drm_drawable *read)
+{
+	if (context) {
+		struct intel_context *intel = (struct intel_context *)context->priv;
+		struct intel_framebuffer *draw_fb = (struct intel_framebuffer *)draw->priv;
+		struct intel_framebuffer *read_fb = (struct intel_framebuffer *)read->priv;
+
+		assert(draw_fb->stfb);
+		assert(read_fb->stfb);
+
+		st_make_current(intel->st, draw_fb->stfb, read_fb->stfb);
+
+		intel->egl_drawable = draw;
+
+		st_resize_framebuffer(draw_fb->stfb, draw->w, draw->h);
+
+		if (draw != read)
+			st_resize_framebuffer(read_fb->stfb, read->w, read->h);
+
+		//intelUpdateWindowSize(driDrawPriv);
+	} else {
+		st_make_current(NULL, NULL, NULL);
+	}
+}
+
+void
+intel_bind_frontbuffer(struct egl_drm_drawable *draw, struct egl_drm_frontbuffer *front)
+{
+	struct intel_screen *intelScreen = (struct intel_screen *)draw->device->priv;
+	struct intel_framebuffer *draw_fb = (struct intel_framebuffer *)draw->priv;
+
+	driBOUnReference(draw_fb->front_buffer);
+	draw_fb->front_buffer = NULL;
+	draw_fb->front = NULL;
+
+	/* to unbind just call this function with front == NULL */
+	if (!front)
+		return;
+
+	draw_fb->front = front;
+
+	driGenBuffers(intelScreen->staticPool, "front", 1, &draw_fb->front_buffer, 0, 0, 0);
+	driBOSetReferenced(draw_fb->front_buffer, front->handle);
+
+	st_resize_framebuffer(draw_fb->stfb, draw->w, draw->h);
+}
+
+#if 0
+GLboolean
+intelCreateContext(const __GLcontextModes * visual,
+                   __DRIcontextPrivate * driContextPriv,
+                   void *sharedContextPrivate)
+{
+   struct intel_context *intel = CALLOC_STRUCT(intel_context);
+   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
+   struct intel_screen *intelScreen = intel_screen(sPriv);
+   drmI830Sarea *saPriv = intelScreen->sarea;
+   int fthrottle_mode;
+   GLboolean havePools;
+   struct pipe_context *pipe;
+   struct st_context *st_share = NULL;
+
+   if (sharedContextPrivate) {
+      st_share = ((struct intel_context *) sharedContextPrivate)->st;
+   }
+
+   driContextPriv->driverPrivate = intel;
+   intel->intelScreen = intelScreen;
+   intel->driScreen = sPriv;
+   intel->sarea = saPriv;
+
+   driParseConfigFiles(&intel->optionCache, &intelScreen->optionCache,
+                       intel->driScreen->myNum, "i915");
+
+
+   /*
+    * memory pools
+    */
+   DRM_LIGHT_LOCK(sPriv->fd, &sPriv->pSAREA->lock, driContextPriv->hHWContext);
+   // ZZZ JB should be per screen and not be done per context
+   havePools = intelCreatePools(sPriv);
+   DRM_UNLOCK(sPriv->fd, &sPriv->pSAREA->lock, driContextPriv->hHWContext);
+   if (!havePools)
+      return GL_FALSE;
+
+
+   /* Dri stuff */
+   intel->hHWContext = driContextPriv->hHWContext;
+   intel->driFd = sPriv->fd;
+   intel->driHwLock = (drmLock *) & sPriv->pSAREA->lock;
+
+   fthrottle_mode = driQueryOptioni(&intel->optionCache, "fthrottle_mode");
+   intel->iw.irq_seq = -1;
+   intel->irqsEmitted = 0;
+
+   intel->batch = intel_batchbuffer_alloc(intel);
+   intel->last_swap_fence = NULL;
+   intel->first_swap_fence = NULL;
+
+#ifdef DEBUG
+   __intel_debug = driParseDebugString(getenv("INTEL_DEBUG"), debug_control);
+#endif
+
+   /*
+    * Pipe-related setup
+    */
+   if (getenv("INTEL_SP")) {
+      /* use softpipe driver instead of hw */
+      pipe = intel_create_softpipe( intel, intelScreen->winsys );
+   }
+   else {
+      switch (intel->intelScreen->deviceID) {
+      case PCI_CHIP_I945_G:
+      case PCI_CHIP_I945_GM:
+      case PCI_CHIP_I945_GME:
+      case PCI_CHIP_G33_G:
+      case PCI_CHIP_Q33_G:
+      case PCI_CHIP_Q35_G:
+      case PCI_CHIP_I915_G:
+      case PCI_CHIP_I915_GM:
+	 pipe = intel_create_i915simple( intel, intelScreen->winsys );
+	 break;
+      default:
+	 fprintf(stderr, "Unknown PCIID %x in %s, using software driver\n", 
+                 intel->intelScreen->deviceID, __FUNCTION__);
+
+	 pipe = intel_create_softpipe( intel, intelScreen->winsys );
+	 break;
+      }
+   }
+
+   pipe->priv = intel;
+
+   intel->st = st_create_context(pipe, visual, st_share);
+
+   return GL_TRUE;
+}
+
+
+void
+intelDestroyContext(__DRIcontextPrivate * driContextPriv)
+{
+   struct intel_context *intel = intel_context(driContextPriv);
+
+   assert(intel);               /* should never be null */
+   if (intel) {
+      st_finish(intel->st);
+
+      intel_batchbuffer_free(intel->batch);
+
+      if (intel->last_swap_fence) {
+	 driFenceFinish(intel->last_swap_fence, DRM_FENCE_TYPE_EXE, GL_TRUE);
+	 driFenceUnReference(&intel->last_swap_fence);
+	 intel->last_swap_fence = NULL;
+      }
+      if (intel->first_swap_fence) {
+	 driFenceFinish(intel->first_swap_fence, DRM_FENCE_TYPE_EXE, GL_TRUE);
+	 driFenceUnReference(&intel->first_swap_fence);
+	 intel->first_swap_fence = NULL;
+      }
+
+      if (intel->intelScreen->dummyContext == intel)
+         intel->intelScreen->dummyContext = NULL;
+
+      st_destroy_context(intel->st);
+      free(intel);
+   }
+}
+
+
+GLboolean
+intelUnbindContext(__DRIcontextPrivate * driContextPriv)
+{
+   struct intel_context *intel = intel_context(driContextPriv);
+   st_flush(intel->st, PIPE_FLUSH_RENDER_CACHE, NULL);
+   /* XXX make_current(NULL)? */
+   return GL_TRUE;
+}
+
+
+GLboolean
+intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
+                 __DRIdrawablePrivate * driDrawPriv,
+                 __DRIdrawablePrivate * driReadPriv)
+{
+   if (driContextPriv) {
+      struct intel_context *intel = intel_context(driContextPriv);
+      struct intel_framebuffer *draw_fb = intel_framebuffer(driDrawPriv);
+      struct intel_framebuffer *read_fb = intel_framebuffer(driReadPriv);
+
+      assert(draw_fb->stfb);
+      assert(read_fb->stfb);
+
+      /* This is for situations in which we need a rendering context but
+       * there may not be any currently bound.
+       */
+      intel->intelScreen->dummyContext = intel;
+
+      st_make_current(intel->st, draw_fb->stfb, read_fb->stfb);
+
+      if ((intel->driDrawable != driDrawPriv) ||
+	  (intel->lastStamp != driDrawPriv->lastStamp)) {
+         intel->driDrawable = driDrawPriv;
+         intelUpdateWindowSize(driDrawPriv);
+         intel->lastStamp = driDrawPriv->lastStamp;
+      }
+
+      /* The size of the draw buffer will have been updated above.
+       * If the readbuffer is a different window, check/update its size now.
+       */
+      if (driReadPriv != driDrawPriv) {
+         intelUpdateWindowSize(driReadPriv);
+      }
+
+   }
+   else {
+      st_make_current(NULL, NULL, NULL);
+   }
+
+   return GL_TRUE;
+}
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_context.h b/src/gallium/winsys/egl_drm/intel/intel_context.h
new file mode 100644
index 0000000000..aa9903f274
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_context.h
@@ -0,0 +1,162 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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.
+ * 
+ **************************************************************************/
+
+#ifndef INTEL_CONTEXT_H
+#define INTEL_CONTEXT_H
+
+#include <stdint.h>
+#include "drm.h"
+
+#include "pipe/p_debug.h"
+
+#include "intel_screen.h"
+#include "i915_drm.h"
+
+
+struct pipe_context;
+struct intel_context;
+struct _DriBufferObject;
+struct st_context;
+struct egl_drm_device;
+struct egl_drm_context;
+struct egl_drm_frontbuffer;
+
+
+#define INTEL_MAX_FIXUP 64
+
+/**
+ * Intel rendering context, contains a state tracker and intel-specific info.
+ */
+struct intel_context
+{
+   struct st_context *st;
+
+   struct _DriFenceObject *last_swap_fence;
+   struct _DriFenceObject *first_swap_fence;
+
+   struct intel_batchbuffer *batch;
+
+#if 0
+   boolean locked;
+   char *prevLockFile;
+   int prevLockLine;
+#endif
+
+	/* pick this up from the screen instead
+   int drmFd;
+	*/
+
+   struct intel_screen *intel_screen;
+
+   uint lastStamp;
+   /* new egl stuff */
+   struct egl_drm_device *egl_device;
+   struct egl_drm_context *egl_context;
+   struct egl_drm_drawable *egl_drawable;
+};
+
+
+
+/**
+ * Intel framebuffer.
+ */
+struct intel_framebuffer
+{
+   struct st_framebuffer *stfb;
+
+   /* other fields TBD */
+   int other;
+   struct _DriBufferObject *front_buffer;
+   struct egl_drm_frontbuffer *front;
+};
+
+
+
+
+/* These are functions now:
+ */
+void LOCK_HARDWARE( struct intel_context *intel );
+void UNLOCK_HARDWARE( struct intel_context *intel );
+
+extern char *__progname;
+
+
+
+/* ================================================================
+ * Debugging:
+ */
+#ifdef DEBUG
+extern int __intel_debug;
+
+#define DEBUG_SWAP	0x1
+#define DEBUG_LOCK      0x2
+#define DEBUG_IOCTL	0x4
+#define DEBUG_BATCH     0x8
+
+#define DBG(flag, ...)  do { 			\
+   if (__intel_debug & (DEBUG_##flag)) 		\
+      printf(__VA_ARGS__); 		\
+} while(0)
+
+#else
+#define DBG(flag, ...) 
+#endif
+
+
+
+#define PCI_CHIP_845_G			0x2562
+#define PCI_CHIP_I830_M			0x3577
+#define PCI_CHIP_I855_GM		0x3582
+#define PCI_CHIP_I865_G			0x2572
+#define PCI_CHIP_I915_G			0x2582
+#define PCI_CHIP_I915_GM		0x2592
+#define PCI_CHIP_I945_G			0x2772
+#define PCI_CHIP_I945_GM		0x27A2
+#define PCI_CHIP_I945_GME		0x27AE
+#define PCI_CHIP_G33_G			0x29C2
+#define PCI_CHIP_Q35_G			0x29B2
+#define PCI_CHIP_Q33_G			0x29D2
+
+
+#if 0
+/** Cast wrapper */
+static INLINE struct intel_context *
+intel_context(__DRIcontextPrivate *driContextPriv)
+{
+   return (struct intel_context *) driContextPriv->driverPrivate;
+}
+
+
+/** Cast wrapper */
+static INLINE struct intel_framebuffer *
+intel_framebuffer(__DRIdrawablePrivate * driDrawPriv)
+{
+   return (struct intel_framebuffer *) driDrawPriv->driverPrivate;
+}
+#endif
+
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_egl.c b/src/gallium/winsys/egl_drm/intel/intel_egl.c
new file mode 100644
index 0000000000..ac1825210e
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_egl.c
@@ -0,0 +1,617 @@
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "eglconfig.h"
+#include "eglcontext.h"
+#include "egldisplay.h"
+#include "egldriver.h"
+#include "eglglobals.h"
+#include "eglmode.h"
+#include "eglscreen.h"
+#include "eglsurface.h"
+
+#include "glapi.h"
+#include "intel_egl.h"
+
+#include "xf86drm.h"
+#include "xf86drmMode.h"
+
+#include "intel_context.h"
+
+#include "ws_dri_bufmgr.h"
+
+#include "intel_winsys.h"
+#include "state_tracker/st_public.h"
+
+struct egl_drm_device* egl_drm_create_device(int drmFD);
+
+struct egl_drm_device*
+egl_drm_create_device(int drmFD)
+{
+	struct egl_drm_device *device = malloc(sizeof(*device));
+	memset(device, 0, sizeof(*device));
+	device->drmFD = drmFD;
+
+	if (!intel_init_driver(device)) {
+		printf("EGL: failed to initalize device\n");
+		free(device);
+	}
+
+	return device;
+}
+
+__GLcontextModes* _gl_context_modes_create( unsigned count, size_t minimum_size );
+
+struct drm_driver
+{
+	_EGLDriver base;  /* base class/object */
+
+	drmModeResPtr res;
+	struct egl_drm_device *device;
+};
+
+struct drm_surface
+{
+	_EGLSurface base;  /* base class/object */
+
+	struct egl_drm_drawable *drawable;
+};
+
+struct drm_context
+{
+	_EGLContext base;  /* base class/object */
+
+	struct egl_drm_context *context;
+};
+
+struct drm_screen
+{
+	_EGLScreen base;
+
+	/* backing buffer and crtc */
+	drmBO buffer;
+	drmModeFBPtr fb;
+	uint32_t fbID;
+	drmModeCrtcPtr crtc;
+
+	/* currently only support one output */
+	drmModeOutputPtr output;
+	uint32_t outputID;
+
+	struct drm_mode_modeinfo *mode;
+
+	/* geometry of the screen */
+	struct egl_drm_frontbuffer front;
+};
+
+static void
+drm_update_res(struct drm_driver *drm_drv)
+{
+	drmModeFreeResources(drm_drv->res);
+	drm_drv->res = drmModeGetResources(drm_drv->device->drmFD);
+}
+
+static void
+drm_add_modes_from_output(_EGLScreen *screen, drmModeOutputPtr output)
+{
+	struct drm_mode_modeinfo *m;
+	int i;
+
+	for (i = 0; i < output->count_modes; i++) {
+		m = &output->modes[i];
+		_eglAddNewMode(screen, m->hdisplay, m->vdisplay, m->vrefresh, m->name);
+	}
+}
+
+static EGLBoolean
+drm_initialize(_EGLDriver *drv, EGLDisplay dpy, EGLint *major, EGLint *minor)
+{
+	_EGLDisplay *disp = _eglLookupDisplay(dpy);
+	struct drm_driver *drm_drv = (struct drm_driver *)drv;
+	struct drm_screen *screen = NULL;
+	drmModeOutputPtr output = NULL;
+	drmModeResPtr res = NULL;
+
+	EGLint i;
+	int fd;
+
+	fd = drmOpen("i915", NULL);
+	if (fd < 0) {
+		return EGL_FALSE;
+	}
+
+	drm_drv->device = egl_drm_create_device(fd);
+	if (!drm_drv->device) {
+		drmClose(fd);
+		return EGL_FALSE;
+	}
+
+	drm_update_res(drm_drv);
+	res = drm_drv->res;
+
+	for(i = 0; i < res->count_outputs; i++) {
+		output = drmModeGetOutput(fd, res->outputs[i]);
+
+		if (!output)
+			continue;
+
+		if (output->connection == DRM_MODE_DISCONNECTED) {
+			drmModeFreeOutput(output);
+			continue;
+		}
+
+		screen = malloc(sizeof(struct drm_screen));
+		memset(screen, 0, sizeof(*screen));
+		screen->outputID = res->outputs[i];
+		screen->output = output;
+		_eglInitScreen(&screen->base);
+		_eglAddScreen(disp, &screen->base);
+		drm_add_modes_from_output(&screen->base, output);
+	}
+
+	/* for now we only have one config */
+	_EGLConfig config;
+	_eglInitConfig(&config, i + 1);
+	_eglSetConfigAttrib(&config, EGL_RED_SIZE, 8);
+	_eglSetConfigAttrib(&config, EGL_GREEN_SIZE, 8);
+	_eglSetConfigAttrib(&config, EGL_BLUE_SIZE, 8);
+	_eglSetConfigAttrib(&config, EGL_ALPHA_SIZE, 8);
+	_eglSetConfigAttrib(&config, EGL_BUFFER_SIZE, 32);
+   	_eglSetConfigAttrib(&config, EGL_DEPTH_SIZE, 24);
+	_eglSetConfigAttrib(&config, EGL_STENCIL_SIZE, 8);
+	_eglSetConfigAttrib(&config, EGL_SURFACE_TYPE, EGL_PBUFFER_BIT);
+	_eglAddConfig(disp, &config);
+
+	drv->Initialized = EGL_TRUE;
+
+	*major = 1;
+	*minor = 0;
+
+	return EGL_TRUE;
+}
+
+
+static EGLBoolean
+drm_terminate(_EGLDriver *drv, EGLDisplay dpy)
+{
+	/* TODO: clean up */
+	free(drv);
+	return EGL_TRUE;
+}
+
+
+static struct drm_context *
+lookup_drm_context(EGLContext context)
+{
+	_EGLContext *c = _eglLookupContext(context);
+	return (struct drm_context *) c;
+}
+
+
+static struct drm_surface *
+lookup_drm_surface(EGLSurface surface)
+{
+	_EGLSurface *s = _eglLookupSurface(surface);
+	return (struct drm_surface *) s;
+}
+
+static struct drm_screen *
+lookup_drm_screen(EGLDisplay dpy, EGLScreenMESA screen)
+{
+	_EGLScreen *s = _eglLookupScreen(dpy, screen);
+	return (struct drm_screen *) s;
+}
+
+static __GLcontextModes*
+visual_from_config(_EGLConfig *conf)
+{
+	__GLcontextModes *visual;
+	(void)conf;
+
+	visual = _gl_context_modes_create(1, sizeof(*visual));
+	visual->redBits = 8;
+	visual->greenBits = 8;
+	visual->blueBits = 8;
+	visual->alphaBits = 8;
+
+	visual->rgbBits = 32;
+	visual->doubleBufferMode = 1;
+
+	visual->depthBits = 24;
+	visual->stencilBits = 8;
+
+	return visual;
+}
+
+
+
+static EGLContext
+drm_create_context(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list)
+{
+	struct drm_driver *drm_drv = (struct drm_driver *)drv;
+	struct drm_context *c;
+	struct drm_egl_context *share = NULL;
+	_EGLConfig *conf;
+	int i;
+	int ret;
+	__GLcontextModes *visual;
+	struct egl_drm_context *context;
+
+	conf = _eglLookupConfig(drv, dpy, config);
+	if (!conf) {
+		_eglError(EGL_BAD_CONFIG, "eglCreateContext");
+		return EGL_NO_CONTEXT;
+	}
+
+	for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) {
+		switch (attrib_list[i]) {
+			/* no attribs defined for now */
+			default:
+				_eglError(EGL_BAD_ATTRIBUTE, "eglCreateContext");
+				return EGL_NO_CONTEXT;
+		}
+	}
+
+	c = (struct drm_context *) calloc(1, sizeof(struct drm_context));
+	if (!c)
+		return EGL_NO_CONTEXT;
+
+	_eglInitContext(drv, dpy, &c->base, config, attrib_list);
+
+	context = malloc(sizeof(*context));
+	memset(context, 0, sizeof(*context));
+
+	if (!context)
+		goto err_c;
+
+	context->device = drm_drv->device;
+	visual = visual_from_config(conf);
+
+	ret = intel_create_context(context, visual, share);
+	free(visual);
+
+	if (!ret)
+		goto err_gl;
+
+	c->context = context;
+
+	/* generate handle and insert into hash table */
+	_eglSaveContext(&c->base);
+	assert(c->base.Handle);
+
+	return c->base.Handle;
+err_gl:
+	free(context);
+err_c:
+	free(c);
+	return EGL_NO_CONTEXT;
+}
+
+static EGLBoolean
+drm_destroy_context(_EGLDriver *drv, EGLDisplay dpy, EGLContext context)
+{
+	struct drm_context *fc = lookup_drm_context(context);
+	_eglRemoveContext(&fc->base);
+	if (fc->base.IsBound) {
+		fc->base.DeletePending = EGL_TRUE;
+	} else {
+		free(fc);
+	}
+	return EGL_TRUE;
+}
+
+
+static EGLSurface
+drm_create_window_surface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list)
+{
+	return EGL_NO_SURFACE;
+}
+
+
+static EGLSurface
+drm_create_pixmap_surface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list)
+{
+	return EGL_NO_SURFACE;
+}
+
+static EGLSurface
+drm_create_pbuffer_surface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+                         const EGLint *attrib_list)
+{
+	struct drm_driver *drm_drv = (struct drm_driver *)drv;
+	int i;
+	int ret;
+	int width = -1;
+	int height = -1;
+	struct drm_surface *surf = NULL;
+	struct egl_drm_drawable *drawable = NULL;
+	__GLcontextModes *visual;
+	_EGLConfig *conf;
+
+	conf = _eglLookupConfig(drv, dpy, config);
+	if (!conf) {
+		_eglError(EGL_BAD_CONFIG, "eglCreatePbufferSurface");
+		return EGL_NO_CONTEXT;
+	}
+
+	for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) {
+		switch (attrib_list[i]) {
+			case EGL_WIDTH:
+				width = attrib_list[++i];
+				break;
+			case EGL_HEIGHT:
+				height = attrib_list[++i];
+				break;
+			default:
+				_eglError(EGL_BAD_ATTRIBUTE, "eglCreatePbufferSurface");
+				return EGL_NO_SURFACE;
+		}
+	}
+
+	if (width < 1 || height < 1) {
+		_eglError(EGL_BAD_ATTRIBUTE, "eglCreatePbufferSurface");
+		return EGL_NO_SURFACE;
+	}
+
+	surf = (struct drm_surface *) calloc(1, sizeof(struct drm_surface));
+	if (!surf)
+		goto err;
+
+	if (!_eglInitSurface(drv, dpy, &surf->base, EGL_PBUFFER_BIT, config, attrib_list))
+		goto err_surf;
+
+	drawable = malloc(sizeof(*drawable));
+	memset(drawable, 0, sizeof(*drawable));
+
+	drawable->w = width;
+	drawable->h = height;
+
+	visual = visual_from_config(conf);
+
+	drawable->device = drm_drv->device;
+	ret = intel_create_drawable(drawable, visual);
+	free(visual);
+
+	if (!ret)
+		goto err_draw;
+
+	surf->drawable = drawable;
+
+	_eglSaveSurface(&surf->base);
+	return surf->base.Handle;
+
+err_draw:
+	free(drawable);
+err_surf:
+	free(surf);
+err:
+	return EGL_NO_SURFACE;
+}
+
+static EGLSurface
+drm_create_screen_surface_mesa(_EGLDriver *drv, EGLDisplay dpy, EGLConfig cfg,
+                               const EGLint *attrib_list)
+{
+	EGLSurface surf = drm_create_pbuffer_surface(drv, dpy, cfg, attrib_list);
+
+	return surf;
+}
+
+static struct drm_mode_modeinfo *
+drm_find_mode(drmModeOutputPtr output, _EGLMode *mode)
+{
+	int i;
+	struct drm_mode_modeinfo *m;
+
+	for (i = 0; i < output->count_modes; i++) {
+		m = &output->modes[i];
+		if (m->hdisplay == mode->Width && m->vdisplay == mode->Height && m->vrefresh == mode->RefreshRate)
+			break;
+		m = NULL;
+	}
+
+	return m;
+}
+static void
+draw(size_t x, size_t y, size_t w, size_t h, size_t pitch, size_t v, unsigned int *ptr)
+{
+    int i, j;
+
+    for (i = x; i < x + w; i++)
+        for(j = y; j < y + h; j++)
+            ptr[(i * pitch / 4) + j] = v;
+
+}
+
+static void
+prettyColors(int fd, unsigned int handle, size_t pitch)
+{
+	drmBO bo;
+	unsigned int *ptr;
+	int i;
+
+	drmBOReference(fd, handle, &bo);
+	drmBOMap(fd, &bo, DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, (void**)&ptr);
+
+	for (i = 0; i < (bo.size / 4); i++)
+		ptr[i] = 0xFFFFFFFF;
+
+	for (i = 0; i < 4; i++)
+		draw(i * 40, i * 40, 40, 40, pitch, 0, ptr);
+
+
+	draw(200, 100, 40, 40, pitch, 0xff00ff, ptr);
+	draw(100, 200, 40, 40, pitch, 0xff00ff, ptr);
+
+	drmBOUnmap(fd, &bo);
+}
+
+static EGLBoolean
+drm_show_screen_surface_mesa(_EGLDriver *drv, EGLDisplay dpy,
+                         EGLScreenMESA screen,
+                         EGLSurface surface, EGLModeMESA m)
+{
+	struct drm_driver *drm_drv = (struct drm_driver *)drv;
+	struct drm_surface *surf = lookup_drm_surface(surface);
+	struct drm_screen *scrn = lookup_drm_screen(dpy, screen);
+	//struct intel_framebuffer *intel_fb = NULL;
+	//struct pipe_surface *front_surf = NULL;
+	_EGLMode *mode = _eglLookupMode(dpy, m);
+	size_t pitch = 2048 * 4;
+	size_t size = mode->Height * pitch;
+	int ret;
+
+	/* TODO if allready shown take down */
+
+	printf("setting mode to %i x %i\n", mode->Width, mode->Height);
+
+	ret = drmBOCreate(drm_drv->device->drmFD, size, 0, 0,
+		DRM_BO_FLAG_READ |
+		DRM_BO_FLAG_WRITE |
+		DRM_BO_FLAG_MEM_TT |
+		DRM_BO_FLAG_MEM_VRAM |
+		DRM_BO_FLAG_NO_EVICT,
+		DRM_BO_HINT_DONT_FENCE, &scrn->buffer);
+
+	prettyColors(drm_drv->device->drmFD, scrn->buffer.handle, pitch);
+	if (ret) {
+		printf("failed to create framebuffer (ret %d)\n", ret);
+		return EGL_FALSE;
+	}
+
+	ret = drmModeAddFB(drm_drv->device->drmFD, mode->Width, mode->Height,
+			32, 32, pitch,
+			scrn->buffer.handle,
+			&scrn->fbID);
+
+	if (ret)
+		goto err_bo;
+
+	scrn->fb = drmModeGetFB(drm_drv->device->drmFD, scrn->fbID);
+	if (!scrn->fb)
+		goto err_bo;
+
+	scrn->mode = drm_find_mode(scrn->output, mode);
+	if (!scrn->mode) {
+		printf("oh noes, no matching mode found\n");
+		goto err_fb;
+	}
+
+	ret = drmModeSetCrtc(
+			drm_drv->device->drmFD,
+			drm_drv->res->crtcs[1],
+			scrn->fbID,
+			0, 0,
+			&scrn->outputID, 1,
+			scrn->mode);
+
+
+	scrn->front.handle = scrn->buffer.handle;
+	scrn->front.pitch = pitch;
+	scrn->front.width = mode->Width;
+	scrn->front.height = mode->Height;
+
+	intel_bind_frontbuffer(surf->drawable, &scrn->front);
+
+	return EGL_TRUE;
+
+err_fb:
+	/* TODO remove fb */
+
+err_bo:
+	drmBOUnreference(drm_drv->device->drmFD, &scrn->buffer);
+	return EGL_FALSE;
+}
+
+static EGLBoolean
+drm_destroy_surface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface)
+{
+	struct drm_surface *fs = lookup_drm_surface(surface);
+	_eglRemoveSurface(&fs->base);
+	if (fs->base.IsBound) {
+		fs->base.DeletePending = EGL_TRUE;
+	} else {
+		free(fs);
+	}
+	return EGL_TRUE;
+}
+
+
+
+
+static EGLBoolean
+drm_make_current(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext context)
+{
+	struct drm_surface *readSurf = lookup_drm_surface(read);
+	struct drm_surface *drawSurf = lookup_drm_surface(draw);
+	struct drm_context *ctx = lookup_drm_context(context);
+	EGLBoolean b;
+
+	b = _eglMakeCurrent(drv, dpy, draw, read, context);
+	if (!b)
+		return EGL_FALSE;
+
+	/* XXX this is where we'd do the hardware context switch */
+	(void) drawSurf;
+	(void) readSurf;
+	(void) ctx;
+
+	intel_make_current(ctx->context, drawSurf->drawable, readSurf->drawable);
+	return EGL_TRUE;
+}
+
+static EGLBoolean
+drm_swap_buffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw)
+{
+	struct drm_surface *surf = lookup_drm_surface(draw);
+	if (!surf)
+		return EGL_FALSE;
+
+	/* error checking */
+	if (!_eglSwapBuffers(drv, dpy, draw))
+		return EGL_FALSE;
+
+	intel_swap_buffers(surf->drawable);
+	return EGL_TRUE;
+}
+
+
+/**
+ * The bootstrap function.  Return a new drm_driver object and
+ * plug in API functions.
+ */
+_EGLDriver *
+_eglMain(_EGLDisplay *dpy)
+{
+	struct drm_driver *drm;
+
+	drm = (struct drm_driver *) calloc(1, sizeof(struct drm_driver));
+	if (!drm) {
+		return NULL;
+	}
+
+	/* First fill in the dispatch table with defaults */
+	_eglInitDriverFallbacks(&drm->base);
+	/* then plug in our Drm-specific functions */
+	drm->base.API.Initialize = drm_initialize;
+	drm->base.API.Terminate = drm_terminate;
+	drm->base.API.CreateContext = drm_create_context;
+	drm->base.API.MakeCurrent = drm_make_current;
+	drm->base.API.CreateWindowSurface = drm_create_window_surface;
+	drm->base.API.CreatePixmapSurface = drm_create_pixmap_surface;
+	drm->base.API.CreatePbufferSurface = drm_create_pbuffer_surface;
+	drm->base.API.DestroySurface = drm_destroy_surface;
+	drm->base.API.DestroyContext = drm_destroy_context;
+	drm->base.API.CreateScreenSurfaceMESA = drm_create_screen_surface_mesa;
+	drm->base.API.ShowScreenSurfaceMESA = drm_show_screen_surface_mesa;
+	drm->base.API.SwapBuffers = drm_swap_buffers;
+
+	/* enable supported extensions */
+	drm->base.Extensions.MESA_screen_surface = EGL_TRUE;
+	drm->base.Extensions.MESA_copy_context = EGL_TRUE;
+
+	return &drm->base;
+}
diff --git a/src/gallium/winsys/egl_drm/intel/intel_egl.h b/src/gallium/winsys/egl_drm/intel/intel_egl.h
new file mode 100644
index 0000000000..18e84e8eea
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_egl.h
@@ -0,0 +1,42 @@
+
+#ifndef _INTEL_EGL_H_
+#define _INTEL_EGL_H_
+
+struct egl_drm_device
+{
+	void *priv;
+	int drmFD;
+};
+
+struct egl_drm_context
+{
+	void *priv;
+	struct egl_drm_device *device;
+};
+
+struct egl_drm_drawable
+{
+	void *priv;
+	struct egl_drm_device *device;
+	size_t h;
+	size_t w;
+};
+
+struct egl_drm_frontbuffer
+{
+	uint32_t handle;
+	uint32_t pitch;
+	uint32_t width;
+	uint32_t height;
+};
+
+#include "GL/internal/glcore.h"
+
+int intel_init_driver(struct egl_drm_device *device);
+int intel_create_context(struct egl_drm_context *context, const __GLcontextModes *visual, void *sharedContextPrivate);
+int intel_create_drawable(struct egl_drm_drawable *drawable, const __GLcontextModes * visual);
+void intel_make_current(struct egl_drm_context *context, struct egl_drm_drawable *draw, struct egl_drm_drawable *read);
+void intel_swap_buffers(struct egl_drm_drawable *draw);
+void intel_bind_frontbuffer(struct egl_drm_drawable *draw, struct egl_drm_frontbuffer *front);
+
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_lock.c b/src/gallium/winsys/egl_drm/intel/intel_lock.c
new file mode 100644
index 0000000000..cec83c7585
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_lock.c
@@ -0,0 +1,102 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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 "main/glheader.h"
+#include "glapi/glthread.h"
+#include <GL/internal/glcore.h>
+#include "state_tracker/st_public.h"
+#include "intel_context.h"
+
+#if 0
+
+_glthread_DECLARE_STATIC_MUTEX( lockMutex );
+
+
+static void
+intelContendedLock(struct intel_context *intel, uint flags)
+{
+   __DRIdrawablePrivate *dPriv = intel->driDrawable;
+   __DRIscreenPrivate *sPriv = intel->driScreen;
+   struct intel_screen *intelScreen = intel_screen(sPriv);
+   drmI830Sarea *sarea = intel->sarea;
+
+   drmGetLock(intel->driFd, intel->hHWContext, flags);
+
+   DBG(LOCK, "%s - got contended lock\n", __progname);
+
+   /* If the window moved, may need to set a new cliprect now.
+    *
+    * NOTE: This releases and regains the hw lock, so all state
+    * checking must be done *after* this call:
+    */
+   if (dPriv)
+      DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
+
+   if (sarea->width != intelScreen->front.width ||
+       sarea->height != intelScreen->front.height) {
+
+      intelUpdateScreenRotation(sPriv, sarea);
+   }
+}
+
+
+/* Lock the hardware and validate our state.
+ */
+void LOCK_HARDWARE( struct intel_context *intel )
+{
+    char __ret = 0;
+
+    _glthread_LOCK_MUTEX(lockMutex);
+    assert(!intel->locked);
+
+    DRM_CAS(intel->driHwLock, intel->hHWContext,
+            (DRM_LOCK_HELD|intel->hHWContext), __ret);
+
+    if (__ret)
+       intelContendedLock( intel, 0 );
+
+    DBG(LOCK, "%s - locked\n", __progname);
+
+    intel->locked = 1;
+}
+
+
+/* Unlock the hardware using the global current context 
+ */
+void UNLOCK_HARDWARE( struct intel_context *intel )
+{
+   assert(intel->locked);
+   intel->locked = 0;
+
+   DRM_UNLOCK(intel->driFd, intel->driHwLock, intel->hHWContext);
+
+   _glthread_UNLOCK_MUTEX(lockMutex);
+
+   DBG(LOCK, "%s - unlocked\n", __progname);
+} 
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_reg.h b/src/gallium/winsys/egl_drm/intel/intel_reg.h
new file mode 100644
index 0000000000..f37c24fda9
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_reg.h
@@ -0,0 +1,53 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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.
+ * 
+ **************************************************************************/
+
+
+#ifndef _INTEL_REG_H_
+#define _INTEL_REG_H_
+
+
+#define BR00_BITBLT_CLIENT   0x40000000
+#define BR00_OP_COLOR_BLT    0x10000000
+#define BR00_OP_SRC_COPY_BLT 0x10C00000
+#define BR13_SOLID_PATTERN   0x80000000
+
+#define XY_COLOR_BLT_CMD		((2<<29)|(0x50<<22)|0x4)
+#define XY_COLOR_BLT_WRITE_ALPHA	(1<<21)
+#define XY_COLOR_BLT_WRITE_RGB		(1<<20)
+
+#define XY_SRC_COPY_BLT_CMD             ((2<<29)|(0x53<<22)|6)
+#define XY_SRC_COPY_BLT_WRITE_ALPHA     (1<<21)
+#define XY_SRC_COPY_BLT_WRITE_RGB       (1<<20)
+
+#define MI_WAIT_FOR_EVENT               ((0x3<<23))
+#define MI_WAIT_FOR_PLANE_B_FLIP        (1<<6)
+#define MI_WAIT_FOR_PLANE_A_FLIP        (1<<2)
+
+#define MI_BATCH_BUFFER_END 	        (0xA<<23)
+
+
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_screen.c b/src/gallium/winsys/egl_drm/intel/intel_screen.c
new file mode 100644
index 0000000000..38c4098087
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_screen.c
@@ -0,0 +1,680 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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 "utils.h"
+#include "vblank.h"
+#include "xmlpool.h"
+
+#include "intel_context.h"
+#include "intel_screen.h"
+#include "intel_batchbuffer.h"
+//#include "intel_batchpool.h"
+#include "intel_swapbuffers.h"
+#include "intel_winsys.h"
+
+#include "ws_dri_bufpool.h"
+
+#include "pipe/p_context.h"
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_cb_fbo.h"
+#include "intel_egl.h"
+
+static boolean
+intel_create_pools(struct intel_screen *intel_screen)
+{
+	if (intel_screen->havePools)
+		return GL_TRUE;
+
+	intel_screen->mgr = driFenceMgrTTMInit(intel_screen->device->drmFD);
+	if (!intel_screen->mgr) {
+		fprintf(stderr, "Failed to create fence manager.\n");
+		return FALSE;
+	}
+
+	intel_screen->fMan = driInitFreeSlabManager(10, 10);
+	if (!intel_screen->fMan) {
+		fprintf(stderr, "Failed to create free slab manager.\n");
+		return FALSE;
+	}
+
+	intel_screen->staticPool = driDRMPoolInit(intel_screen->device->drmFD);
+	intel_screen->batchPool = driSlabPoolInit(intel_screen->device->drmFD,
+						DRM_BO_FLAG_EXE |
+						DRM_BO_FLAG_MEM_TT,
+						DRM_BO_FLAG_EXE |
+						DRM_BO_FLAG_MEM_TT,
+						4096, //intelScreen->maxBatchSize,
+						1, 40, 16*16384, 0,
+						intel_screen->fMan);
+
+	intel_screen->havePools = GL_TRUE;
+
+	return GL_TRUE;
+}
+
+extern const struct dri_extension card_extensions[];
+
+int
+intel_init_driver(struct egl_drm_device *device)
+{
+	struct intel_screen *intel_screen;
+
+	/* Allocate the private area */
+	intel_screen = CALLOC_STRUCT(intel_screen);
+	if (!intel_screen) 
+		return FALSE;
+
+	device->priv = (void *)intel_screen;
+	intel_screen->device = device;
+
+	if (!intel_create_pools(intel_screen))
+		return FALSE;
+
+	intel_screen->batch = intel_batchbuffer_alloc(intel_screen);
+
+	intel_screen->winsys = intel_create_pipe_winsys(device->drmFD, intel_screen->fMan);
+
+	/* hack */
+	driInitExtensions(NULL, card_extensions, GL_FALSE);
+
+	return TRUE;
+}
+
+int
+intel_create_drawable(struct egl_drm_drawable *drawable,
+                      const __GLcontextModes * visual)
+{
+	enum pipe_format colorFormat, depthFormat, stencilFormat;
+	struct intel_framebuffer *intelfb = CALLOC_STRUCT(intel_framebuffer);
+
+	if (!intelfb)
+		return GL_FALSE;
+
+	if (visual->redBits == 5)
+		colorFormat = PIPE_FORMAT_R5G6B5_UNORM;
+	else
+		colorFormat = PIPE_FORMAT_A8R8G8B8_UNORM;
+
+	if (visual->depthBits == 16)
+		depthFormat = PIPE_FORMAT_Z16_UNORM;
+	else if (visual->depthBits == 24)
+		depthFormat = PIPE_FORMAT_S8Z24_UNORM;
+	else
+		depthFormat = PIPE_FORMAT_NONE;
+
+	if (visual->stencilBits == 8)
+		stencilFormat = PIPE_FORMAT_S8Z24_UNORM;
+	else
+		stencilFormat = PIPE_FORMAT_NONE;
+
+	intelfb->stfb = st_create_framebuffer(visual,
+			colorFormat,
+			depthFormat,
+			stencilFormat,
+			drawable->w,
+			drawable->h,
+			(void*) intelfb);
+
+	if (!intelfb->stfb) {
+		free(intelfb);
+		return GL_FALSE;
+	}
+
+   drawable->priv = (void *) intelfb;
+   return GL_TRUE;
+}
+
+#if 0
+PUBLIC const char __driConfigOptions[] =
+   DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
+   DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
+   DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
+   DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
+   DRI_CONF_FORCE_S3TC_ENABLE(false)
+   DRI_CONF_ALLOW_LARGE_TEXTURES(1)
+   DRI_CONF_SECTION_END DRI_CONF_END;
+
+const uint __driNConfigOptions = 4;
+
+#ifdef USE_NEW_INTERFACE
+static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
+#endif /*USE_NEW_INTERFACE */
+
+extern const struct dri_extension card_extensions[];
+
+
+
+
+static void
+intelPrintDRIInfo(struct intel_screen * intelScreen,
+                  __DRIscreenPrivate * sPriv, I830DRIPtr gDRIPriv)
+{
+   fprintf(stderr, "*** Front size:   0x%x  offset: 0x%x  pitch: %d\n",
+           intelScreen->front.size, intelScreen->front.offset,
+           intelScreen->front.pitch);
+   fprintf(stderr, "*** Memory : 0x%x\n", gDRIPriv->mem);
+}
+
+static void
+intelPrintSAREA(const drmI830Sarea * sarea)
+{
+   fprintf(stderr, "SAREA: sarea width %d  height %d\n", sarea->width,
+           sarea->height);
+   fprintf(stderr, "SAREA: pitch: %d\n", sarea->pitch);
+   fprintf(stderr,
+           "SAREA: front offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
+           sarea->front_offset, sarea->front_size,
+           (unsigned) sarea->front_handle);
+   fprintf(stderr,
+           "SAREA: back  offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
+           sarea->back_offset, sarea->back_size,
+           (unsigned) sarea->back_handle);
+   fprintf(stderr, "SAREA: depth offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
+           sarea->depth_offset, sarea->depth_size,
+           (unsigned) sarea->depth_handle);
+   fprintf(stderr, "SAREA: tex   offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
+           sarea->tex_offset, sarea->tex_size, (unsigned) sarea->tex_handle);
+   fprintf(stderr, "SAREA: rotation: %d\n", sarea->rotation);
+   fprintf(stderr,
+           "SAREA: rotated offset: 0x%08x  size: 0x%x\n",
+           sarea->rotated_offset, sarea->rotated_size);
+   fprintf(stderr, "SAREA: rotated pitch: %d\n", sarea->rotated_pitch);
+}
+
+/**
+ * Use the information in the sarea to update the screen parameters
+ * related to screen rotation. Needs to be called locked.
+ */
+void
+intelUpdateScreenRotation(__DRIscreenPrivate * sPriv, drmI830Sarea * sarea)
+{
+   struct intel_screen *intelScreen = intel_screen(sPriv);
+
+   if (intelScreen->front.map) {
+      drmUnmap(intelScreen->front.map, intelScreen->front.size);
+      intelScreen->front.map = NULL;
+   }
+
+   if (intelScreen->front.buffer)
+      driDeleteBuffers(1, &intelScreen->front.buffer);
+
+   intelScreen->front.width = sarea->width;
+   intelScreen->front.height = sarea->height;
+   intelScreen->front.offset = sarea->front_offset;
+   intelScreen->front.pitch = sarea->pitch * intelScreen->front.cpp;
+   intelScreen->front.size = sarea->front_size;
+   intelScreen->front.handle = sarea->front_handle;
+
+   assert( sarea->front_size >=
+	   intelScreen->front.pitch * intelScreen->front.height );
+
+#if 0 /* JB not important */
+   if (!sarea->front_handle)
+      return;
+
+   if (drmMap(sPriv->fd,
+	      sarea->front_handle,
+	      intelScreen->front.size,
+	      (drmAddress *) & intelScreen->front.map) != 0) {
+      fprintf(stderr, "drmMap(frontbuffer) failed!\n");
+      return;
+   }
+#endif
+
+#if 0 /* JB */
+   if (intelScreen->staticPool) {
+      driGenBuffers(intelScreen->staticPool, "static region", 1,
+		    &intelScreen->front.buffer, 64,
+		    DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_NO_MOVE |
+		    DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0);
+
+      driBOSetStatic(intelScreen->front.buffer, 
+		     intelScreen->front.offset, 		  
+		     intelScreen->front.pitch * intelScreen->front.height, 
+		     intelScreen->front.map, 0);
+   }
+#else
+   if (intelScreen->staticPool) {
+      if (intelScreen->front.buffer)
+	 driBOUnReference(intelScreen->front.buffer);
+      driGenBuffers(intelScreen->staticPool, "front", 1, &intelScreen->front.buffer, 0, 0, 0);
+      driBOSetReferenced(intelScreen->front.buffer, sarea->front_bo_handle);
+   }
+#endif
+}
+
+
+boolean
+intelCreatePools(__DRIscreenPrivate * sPriv)
+{
+   //unsigned batchPoolSize = 1024*1024;
+   struct intel_screen *intelScreen = intel_screen(sPriv);
+
+   if (intelScreen->havePools)
+      return GL_TRUE;
+
+#if 0 /* ZZZ JB fix this */
+   intelScreen->staticPool = driDRMStaticPoolInit(sPriv->fd);
+   if (!intelScreen->staticPool)
+      return GL_FALSE;
+
+   batchPoolSize /= BATCH_SZ;
+   intelScreen->batchPool = driBatchPoolInit(sPriv->fd,
+                                             DRM_BO_FLAG_EXE |
+                                             DRM_BO_FLAG_MEM_TT |
+                                             DRM_BO_FLAG_MEM_LOCAL,
+                                             BATCH_SZ, 
+					     batchPoolSize, 5);
+   if (!intelScreen->batchPool) {
+      fprintf(stderr, "Failed to initialize batch pool - possible incorrect agpgart installed\n");
+      return GL_FALSE;
+   }
+#else
+   intelScreen->staticPool = driDRMPoolInit(sPriv->fd);
+   intelScreen->batchPool = driSlabPoolInit(sPriv->fd,
+						DRM_BO_FLAG_EXE |
+						DRM_BO_FLAG_MEM_TT,
+						DRM_BO_FLAG_EXE |
+						DRM_BO_FLAG_MEM_TT,
+						4096, //intelScreen->maxBatchSize,
+						1, 40, 16*16384, 0,
+						intelScreen->fMan);
+#endif
+   intelScreen->havePools = GL_TRUE;
+
+   //intelUpdateScreenRotation(sPriv, intelScreen->sarea);
+
+   return GL_TRUE;
+}
+
+
+static boolean
+intelInitDriver(__DRIscreenPrivate * sPriv)
+{
+   struct intel_screen *intelScreen;
+   I830DRIPtr gDRIPriv = (I830DRIPtr) sPriv->pDevPriv;
+
+   PFNGLXSCRENABLEEXTENSIONPROC glx_enable_extension =
+      (PFNGLXSCRENABLEEXTENSIONPROC) (*dri_interface->
+                                      getProcAddress("glxEnableExtension"));
+   void *const psc = sPriv->psc->screenConfigs;
+
+   if (sPriv->devPrivSize != sizeof(I830DRIRec)) {
+      fprintf(stderr,
+              "\nERROR!  sizeof(I830DRIRec) does not match passed size from device driver\n");
+      return GL_FALSE;
+   }
+
+   /* Allocate the private area */
+   intelScreen = CALLOC_STRUCT(intel_screen);
+   if (!intelScreen) 
+      return GL_FALSE;
+
+   /* parse information in __driConfigOptions */
+   driParseOptionInfo(&intelScreen->optionCache,
+                      __driConfigOptions, __driNConfigOptions);
+
+   sPriv->private = (void *) intelScreen;
+
+   intelScreen->sarea = (drmI830Sarea *) (((GLubyte *) sPriv->pSAREA) +
+					  gDRIPriv->sarea_priv_offset);
+   intelScreen->deviceID = gDRIPriv->deviceID;
+   intelScreen->front.cpp = gDRIPriv->cpp;
+   intelScreen->drmMinor = sPriv->drmMinor;
+
+
+   assert(gDRIPriv->bitsPerPixel == 16 ||
+	  gDRIPriv->bitsPerPixel == 32);
+
+
+   intelUpdateScreenRotation(sPriv, intelScreen->sarea);
+
+   if (0)
+      intelPrintDRIInfo(intelScreen, sPriv, gDRIPriv);
+
+   if (glx_enable_extension != NULL) {
+      (*glx_enable_extension) (psc, "GLX_SGI_swap_control");
+      (*glx_enable_extension) (psc, "GLX_SGI_video_sync");
+      (*glx_enable_extension) (psc, "GLX_MESA_swap_control");
+      (*glx_enable_extension) (psc, "GLX_MESA_swap_frame_usage");
+      (*glx_enable_extension) (psc, "GLX_SGI_make_current_read");
+   }
+
+
+
+#if 1 // ZZZ JB
+   intelScreen->mgr = driFenceMgrTTMInit(sPriv->fd);
+   if (!intelScreen->mgr) {
+      fprintf(stderr, "Failed to create fence manager.\n");
+      return GL_FALSE;
+   }
+
+   intelScreen->fMan = driInitFreeSlabManager(10, 10);
+   if (!intelScreen->fMan) {
+      fprintf(stderr, "Failed to create free slab manager.\n");
+      return GL_FALSE;
+   }
+
+   if (!intelCreatePools(sPriv))
+      return GL_FALSE;
+#endif
+
+   intelScreen->winsys = intel_create_pipe_winsys(sPriv->fd, intelScreen->fMan);
+
+   return GL_TRUE;
+}
+
+
+static void
+intelDestroyScreen(__DRIscreenPrivate * sPriv)
+{
+   struct intel_screen *intelScreen = intel_screen(sPriv);
+
+   /*  intelUnmapScreenRegions(intelScreen); */
+
+   if (intelScreen->havePools) {
+      driPoolTakeDown(intelScreen->staticPool);
+      driPoolTakeDown(intelScreen->batchPool);
+   }
+   FREE(intelScreen);
+   sPriv->private = NULL;
+}
+
+
+/**
+ * This is called when we need to set up GL rendering to a new X window.
+ */
+static boolean
+intelCreateBuffer(__DRIscreenPrivate * driScrnPriv,
+                  __DRIdrawablePrivate * driDrawPriv,
+                  const __GLcontextModes * visual, boolean isPixmap)
+{
+   if (isPixmap) {
+      return GL_FALSE;          /* not implemented */
+   }
+   else {
+      enum pipe_format colorFormat, depthFormat, stencilFormat;
+      struct intel_framebuffer *intelfb = CALLOC_STRUCT(intel_framebuffer);
+
+      if (!intelfb)
+         return GL_FALSE;
+
+      if (visual->redBits == 5)
+         colorFormat = PIPE_FORMAT_R5G6B5_UNORM;
+      else
+         colorFormat = PIPE_FORMAT_A8R8G8B8_UNORM;
+
+      if (visual->depthBits == 16)
+         depthFormat = PIPE_FORMAT_Z16_UNORM;
+      else if (visual->depthBits == 24)
+         depthFormat = PIPE_FORMAT_S8Z24_UNORM;
+      else
+         depthFormat = PIPE_FORMAT_NONE;
+
+      if (visual->stencilBits == 8)
+         stencilFormat = PIPE_FORMAT_S8Z24_UNORM;
+      else
+         stencilFormat = PIPE_FORMAT_NONE;
+
+      intelfb->stfb = st_create_framebuffer(visual,
+                                            colorFormat,
+                                            depthFormat,
+                                            stencilFormat,
+                                            driDrawPriv->w,
+                                            driDrawPriv->h,
+                                            (void*) intelfb);
+      if (!intelfb->stfb) {
+         free(intelfb);
+         return GL_FALSE;
+      }
+
+      driDrawPriv->driverPrivate = (void *) intelfb;
+      return GL_TRUE;
+   }
+}
+
+static void
+intelDestroyBuffer(__DRIdrawablePrivate * driDrawPriv)
+{
+   struct intel_framebuffer *intelfb = intel_framebuffer(driDrawPriv);
+   assert(intelfb->stfb);
+   st_unreference_framebuffer(&intelfb->stfb);
+   free(intelfb);
+}
+
+
+/**
+ * Get information about previous buffer swaps.
+ */
+static int
+intelGetSwapInfo(__DRIdrawablePrivate * dPriv, __DRIswapInfo * sInfo)
+{
+   if ((dPriv == NULL) || (dPriv->driverPrivate == NULL)
+       || (sInfo == NULL)) {
+      return -1;
+   }
+
+   return 0;
+}
+
+
+static void
+intelSetTexOffset(__DRIcontext *pDRICtx, int texname,
+		  unsigned long long offset, int depth, uint pitch)
+{
+   abort();
+#if 0
+   struct intel_context *intel = (struct intel_context*)
+      ((__DRIcontextPrivate*)pDRICtx->private)->driverPrivate;
+   struct gl_texture_object *tObj = _mesa_lookup_texture(&intel->ctx, texname);
+   struct st_texture_object *stObj = st_texture_object(tObj);
+
+   if (!stObj)
+      return;
+
+   if (stObj->pt)
+      st->pipe->texture_release(intel->st->pipe, &stObj->pt);
+
+   stObj->imageOverride = GL_TRUE;
+   stObj->depthOverride = depth;
+   stObj->pitchOverride = pitch;
+
+   if (offset)
+      stObj->textureOffset = offset;
+#endif
+}
+
+
+static const struct __DriverAPIRec intelAPI = {
+   .InitDriver = intelInitDriver,
+   .DestroyScreen = intelDestroyScreen,
+   .CreateContext = intelCreateContext,
+   .DestroyContext = intelDestroyContext,
+   .CreateBuffer = intelCreateBuffer,
+   .DestroyBuffer = intelDestroyBuffer,
+   .SwapBuffers = intelSwapBuffers,
+   .MakeCurrent = intelMakeCurrent,
+   .UnbindContext = intelUnbindContext,
+   .GetSwapInfo = intelGetSwapInfo,
+   .GetMSC = driGetMSC32,
+   .WaitForMSC = driWaitForMSC32,
+   .WaitForSBC = NULL,
+   .SwapBuffersMSC = NULL,
+   .CopySubBuffer = intelCopySubBuffer,
+   .setTexOffset = intelSetTexOffset,
+};
+
+
+static __GLcontextModes *
+intelFillInModes(unsigned pixel_bits, unsigned depth_bits,
+                 unsigned stencil_bits, boolean have_back_buffer)
+{
+   __GLcontextModes *modes;
+   __GLcontextModes *m;
+   unsigned num_modes;
+   unsigned depth_buffer_factor;
+   unsigned back_buffer_factor;
+   GLenum fb_format;
+   GLenum fb_type;
+
+   /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
+    * support pageflipping at all.
+    */
+   static const GLenum back_buffer_modes[] = {
+      GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+   };
+
+   u_int8_t depth_bits_array[3];
+   u_int8_t stencil_bits_array[3];
+
+
+   depth_bits_array[0] = 0;
+   depth_bits_array[1] = depth_bits;
+   depth_bits_array[2] = depth_bits;
+
+   /* Just like with the accumulation buffer, always provide some modes
+    * with a stencil buffer.  It will be a sw fallback, but some apps won't
+    * care about that.
+    */
+   stencil_bits_array[0] = 0;
+   stencil_bits_array[1] = 0;
+   if (depth_bits == 24)
+      stencil_bits_array[1] = (stencil_bits == 0) ? 8 : stencil_bits;
+
+   stencil_bits_array[2] = (stencil_bits == 0) ? 8 : stencil_bits;
+
+   depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 3 : 1;
+   back_buffer_factor = (have_back_buffer) ? 3 : 1;
+
+   num_modes = depth_buffer_factor * back_buffer_factor * 4;
+
+   if (pixel_bits == 16) {
+      fb_format = GL_RGB;
+      fb_type = GL_UNSIGNED_SHORT_5_6_5;
+   }
+   else {
+      fb_format = GL_BGRA;
+      fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+   }
+
+   modes =
+      (*dri_interface->createContextModes) (num_modes,
+                                            sizeof(__GLcontextModes));
+   m = modes;
+   if (!driFillInModes(&m, fb_format, fb_type,
+                       depth_bits_array, stencil_bits_array,
+                       depth_buffer_factor, back_buffer_modes,
+                       back_buffer_factor, GLX_TRUE_COLOR)) {
+      fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
+              __LINE__);
+      return NULL;
+   }
+   if (!driFillInModes(&m, fb_format, fb_type,
+                       depth_bits_array, stencil_bits_array,
+                       depth_buffer_factor, back_buffer_modes,
+                       back_buffer_factor, GLX_DIRECT_COLOR)) {
+      fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
+              __LINE__);
+      return NULL;
+   }
+
+   /* Mark the visual as slow if there are "fake" stencil bits.
+    */
+   for (m = modes; m != NULL; m = m->next) {
+      if ((m->stencilBits != 0) && (m->stencilBits != stencil_bits)) {
+         m->visualRating = GLX_SLOW_CONFIG;
+      }
+   }
+
+   return modes;
+}
+
+
+/**
+ * This is the bootstrap function for the driver.  libGL supplies all of the
+ * requisite information about the system, and the driver initializes itself.
+ * This routine also fills in the linked list pointed to by \c driver_modes
+ * with the \c __GLcontextModes that the driver can support for windows or
+ * pbuffers.
+ * 
+ * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on 
+ *         failure.
+ */
+PUBLIC void *
+__driCreateNewScreen_20050727(__DRInativeDisplay * dpy, int scrn,
+                              __DRIscreen * psc,
+                              const __GLcontextModes * modes,
+                              const __DRIversion * ddx_version,
+                              const __DRIversion * dri_version,
+                              const __DRIversion * drm_version,
+                              const __DRIframebuffer * frame_buffer,
+                              drmAddress pSAREA, int fd,
+                              int internal_api_version,
+                              const __DRIinterfaceMethods * interface,
+                              __GLcontextModes ** driver_modes)
+{
+   __DRIscreenPrivate *psp;
+   static const __DRIversion ddx_expected = { 1, 7, 0 };
+   static const __DRIversion dri_expected = { 4, 0, 0 };
+   static const __DRIversion drm_expected = { 1, 7, 0 };
+
+   dri_interface = interface;
+
+   if (!driCheckDriDdxDrmVersions2("i915",
+                                   dri_version, &dri_expected,
+                                   ddx_version, &ddx_expected,
+                                   drm_version, &drm_expected)) {
+      return NULL;
+   }
+
+   psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL,
+                                  ddx_version, dri_version, drm_version,
+                                  frame_buffer, pSAREA, fd,
+                                  internal_api_version, &intelAPI);
+
+   if (psp != NULL) {
+      I830DRIPtr dri_priv = (I830DRIPtr) psp->pDevPriv;
+      *driver_modes = intelFillInModes(dri_priv->cpp * 8,
+                                       (dri_priv->cpp == 2) ? 16 : 24,
+                                       (dri_priv->cpp == 2) ? 0 : 8, 1);
+
+      /* Calling driInitExtensions here, with a NULL context pointer,
+       * does not actually enable the extensions.  It just makes sure
+       * that all the dispatch offsets for all the extensions that
+       * *might* be enables are known.  This is needed because the
+       * dispatch offsets need to be known when _mesa_context_create
+       * is called, but we can't enable the extensions until we have a
+       * context pointer.
+       *
+       * Hello chicken.  Hello egg.  How are you two today?
+       */
+      driInitExtensions(NULL, card_extensions, GL_FALSE);
+   }
+
+   return (void *) psp;
+}
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_screen.h b/src/gallium/winsys/egl_drm/intel/intel_screen.h
new file mode 100644
index 0000000000..e8c1cdfca4
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_screen.h
@@ -0,0 +1,133 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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.
+ * 
+ **************************************************************************/
+
+#ifndef _INTEL_SCREEN_H_
+#define _INTEL_SCREEN_H_
+
+#include "ws_dri_bufpool.h"
+
+#include "pipe/p_compiler.h"
+
+struct egl_drm_device *device;
+
+struct intel_screen
+{
+#if 0
+   struct {
+      drm_handle_t handle;
+
+      /* We create a static dri buffer for the frontbuffer.
+       */
+      struct _DriBufferObject *buffer;
+
+      char *map;                   /* memory map */
+      int offset;                  /* from start of video mem, in bytes */
+      int pitch;                   /* row stride, in bytes */
+      int width;
+      int height;
+      int size;
+      int cpp;                     /* for front and back buffers */   
+   } front;
+#endif
+
+   int drmFB;
+
+#if 0
+   int deviceID;
+   int drmMinor;
+
+
+   drmI830Sarea *sarea;*/
+
+
+   /**
+   * Configuration cache with default values for all contexts
+   */
+   driOptionCache optionCache;
+#endif
+
+   struct _DriBufferPool *batchPool;
+   struct _DriBufferPool *staticPool; /** for the X screen/framebuffer */
+   boolean havePools;
+
+#if 0
+   /**
+    * Temporary(?) context to use for SwapBuffers or other situations in
+    * which we need a rendering context, but none is currently bound.
+    */
+   struct intel_context *dummyContext;
+#endif
+
+   /* 
+    * New stuff form the i915tex integration
+    */
+   struct _DriFenceMgr *mgr;
+   struct _DriFreeSlabManager *fMan;
+   unsigned batch_id;
+
+   struct pipe_winsys *winsys;
+   struct egl_drm_device *device;
+
+   /* batch buffer used for swap buffers */
+   struct intel_batchbuffer *batch;
+};
+
+
+
+/** cast wrapper */
+#if 0
+static INLINE struct intel_screen *
+intel_screen(__DRIscreenPrivate *sPriv)
+{
+   return (struct intel_screen *) sPriv->private;
+}
+
+
+extern void
+intelUpdateScreenRotation(__DRIscreenPrivate * sPriv, drmI830Sarea * sarea);
+
+
+extern void intelDestroyContext(__DRIcontextPrivate * driContextPriv);
+
+extern boolean intelUnbindContext(__DRIcontextPrivate * driContextPriv);
+
+extern boolean
+intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
+                 __DRIdrawablePrivate * driDrawPriv,
+                 __DRIdrawablePrivate * driReadPriv);
+
+
+extern boolean
+intelCreatePools(__DRIscreenPrivate *sPriv);
+
+extern boolean
+intelCreateContext(const __GLcontextModes * visual,
+                   __DRIcontextPrivate * driContextPriv,
+                   void *sharedContextPrivate);
+
+#endif
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_swapbuffers.c b/src/gallium/winsys/egl_drm/intel/intel_swapbuffers.c
new file mode 100644
index 0000000000..1ce4b2754a
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_swapbuffers.c
@@ -0,0 +1,327 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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 "intel_screen.h"
+#include "intel_context.h"
+#include "intel_swapbuffers.h"
+#include "intel_batchbuffer.h"
+#include "intel_reg.h"
+#include "intel_winsys.h"
+
+#include "pipe/p_context.h"
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_context.h"
+#include "state_tracker/st_cb_fbo.h"
+#include "intel_egl.h"
+
+
+static void
+intel_display_surface(struct egl_drm_drawable *draw,
+                      struct pipe_surface *surf);
+
+void intel_swap_buffers(struct egl_drm_drawable *draw)
+{
+	struct intel_framebuffer *intel_fb = (struct intel_framebuffer *)draw->priv;
+	struct pipe_surface *back_surf;
+
+	assert(intel_fb);
+	assert(intel_fb->stfb);
+
+	back_surf = st_get_framebuffer_surface(intel_fb->stfb, ST_SURFACE_BACK_LEFT);
+	if (back_surf) {
+		st_notify_swapbuffers(intel_fb->stfb);
+		intel_display_surface(draw, back_surf);
+		st_notify_swapbuffers_complete(intel_fb->stfb);
+	}
+}
+
+static void
+intel_display_surface(struct egl_drm_drawable *draw,
+                      struct pipe_surface *surf)
+{
+	struct intel_screen *intel = (struct intel_screen *)draw->device->priv;
+	struct intel_framebuffer *intel_fb = (struct intel_framebuffer *)draw->priv;
+	struct _DriFenceObject *fence;
+
+	//const int srcWidth = surf->width;
+	//const int srcHeight = surf->height;
+	const int srcPitch = surf->pitch;
+
+	const int dstWidth = intel_fb->front->width;
+	const int dstHeight = intel_fb->front->height;
+	const int dstPitch = intel_fb->front->pitch / 4;//draw->front.cpp;
+
+	const int cpp = 4;//intel_fb->front->cpp;
+
+	int BR13, CMD;
+	//int i;
+
+
+	BR13 = (dstPitch * 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);
+
+	printf("srcPitch: %u, dstWidth: %u, dstHeight: %u, dstPitch: %u, cpp: %u\n", srcPitch, dstWidth, dstHeight, dstPitch, cpp);
+	BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
+	OUT_BATCH(CMD);
+	OUT_BATCH(BR13);
+	OUT_BATCH((0 << 16) | 0);
+	OUT_BATCH((dstHeight << 16) | dstWidth);
+
+	OUT_RELOC(intel_fb->front_buffer,
+		DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
+		DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
+
+	OUT_BATCH((0 << 16) | 0);
+	OUT_BATCH((srcPitch * cpp) & 0xffff);
+	OUT_RELOC(dri_bo(surf->buffer),
+			DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
+			DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0);
+
+	ADVANCE_BATCH();
+
+	fence = intel_batchbuffer_flush(intel->batch);
+	driFenceUnReference(&fence);
+	intel_batchbuffer_finish(intel->batch);
+}
+
+#if 0
+/**
+ * Display a colorbuffer surface in an X window.
+ * Used for SwapBuffers and flushing front buffer rendering.
+ *
+ * \param dPriv  the window/drawable to display into
+ * \param surf  the surface to display
+ * \param rect  optional subrect of surface to display (may be NULL).
+ */
+void
+intelDisplaySurface(__DRIdrawablePrivate *dPriv,
+                    struct pipe_surface *surf,
+                    const drm_clip_rect_t *rect)
+{
+   struct intel_screen *intelScreen = intel_screen(dPriv->driScreenPriv);
+   //struct intel_context *intel = intelScreen->dummyContext;
+
+   DBG(SWAP, "%s\n", __FUNCTION__);
+
+#if 0
+   if (!intel) {
+      /* XXX this is where some kind of extra/meta context could be useful */
+      return;
+   }
+#endif
+
+   if (intel->last_swap_fence) {
+      driFenceFinish(intel->last_swap_fence, DRM_FENCE_TYPE_EXE, TRUE);
+      driFenceUnReference(&intel->last_swap_fence);
+      intel->last_swap_fence = NULL;
+   }
+   intel->last_swap_fence = intel->first_swap_fence;
+   intel->first_swap_fence = NULL;
+
+   /* The LOCK_HARDWARE is required for the cliprects.  Buffer offsets
+    * should work regardless.
+    */
+   LOCK_HARDWARE(intel);
+   /* if this drawable isn't currently bound the LOCK_HARDWARE done on the
+    * current context (which is what intelScreenContext should return) might
+    * not get a contended lock and thus cliprects not updated (tests/manywin)
+    */
+   if (intel_context(dPriv->driContextPriv) != intel)
+      DRI_VALIDATE_DRAWABLE_INFO(intel->driScreen, dPriv);
+
+
+   if (dPriv && dPriv->numClipRects) {
+      const int srcWidth = surf->width;
+      const int srcHeight = surf->height;
+      const int nbox = dPriv->numClipRects;
+      const drm_clip_rect_t *pbox = dPriv->pClipRects;
+      const int pitch = intelScreen->front.pitch / intelScreen->front.cpp;
+      const int cpp = intelScreen->front.cpp;
+      const int srcpitch = surf->pitch;
+      int BR13, CMD;
+      int i;
+
+      ASSERT(surf->buffer);
+      ASSERT(surf->cpp == cpp);
+
+      DBG(SWAP, "screen pitch %d  src surface pitch %d\n",
+	  pitch, surf->pitch);
+
+      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;
+	 drm_clip_rect_t sbox;
+
+	 if (pbox->x1 > pbox->x2 ||
+	     pbox->y1 > pbox->y2 ||
+	     pbox->x2 > intelScreen->front.width || 
+	     pbox->y2 > intelScreen->front.height) {
+            /* invalid cliprect, skip it */
+	    continue;
+         }
+
+	 box = *pbox;
+
+	 if (rect) {
+            /* intersect cliprect with user-provided src rect */
+	    drm_clip_rect_t rrect;
+
+	    rrect.x1 = dPriv->x + rect->x1;
+	    rrect.y1 = (dPriv->h - rect->y1 - rect->y2) + dPriv->y;
+	    rrect.x2 = rect->x2 + rrect.x1;
+	    rrect.y2 = rect->y2 + rrect.y1;
+	    if (rrect.x1 > box.x1)
+	       box.x1 = rrect.x1;
+	    if (rrect.y1 > box.y1)
+	       box.y1 = rrect.y1;
+	    if (rrect.x2 < box.x2)
+	       box.x2 = rrect.x2;
+	    if (rrect.y2 < box.y2)
+	       box.y2 = rrect.y2;
+
+	    if (box.x1 > box.x2 || box.y1 > box.y2)
+	       continue;
+	 }
+
+	 /* restrict blit to size of actually rendered area */
+	 if (box.x2 - box.x1 > srcWidth)
+	    box.x2 = srcWidth + box.x1;
+	 if (box.y2 - box.y1 > srcHeight)
+	    box.y2 = srcHeight + box.y1;
+
+	 DBG(SWAP, "box x1 x2 y1 y2 %d %d %d %d\n",
+	     box.x1, box.x2, box.y1, box.y2);
+
+	 sbox.x1 = box.x1 - dPriv->x;
+	 sbox.y1 = box.y1 - dPriv->y;
+
+         assert(box.x1 < box.x2);
+         assert(box.y1 < box.y2);
+
+         /* XXX this could be done with pipe->surface_copy() */
+	 BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
+	 OUT_BATCH(CMD);
+	 OUT_BATCH(BR13);
+	 OUT_BATCH((box.y1 << 16) | box.x1);
+	 OUT_BATCH((box.y2 << 16) | box.x2);
+
+	 OUT_RELOC(intelScreen->front.buffer, 
+		   DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
+		   DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
+	 OUT_BATCH((sbox.y1 << 16) | sbox.x1);
+	 OUT_BATCH((srcpitch * cpp) & 0xffff);
+	 OUT_RELOC(dri_bo(surf->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);
+   }
+
+   UNLOCK_HARDWARE(intel);
+
+   if (intel->lastStamp != dPriv->lastStamp) {
+      intelUpdateWindowSize(dPriv);
+      intel->lastStamp = dPriv->lastStamp;
+   }
+}
+
+
+
+/**
+ * This will be called whenever the currently bound window is moved/resized.
+ */
+void
+intelUpdateWindowSize(__DRIdrawablePrivate *dPriv)
+{
+   struct intel_framebuffer *intelfb = intel_framebuffer(dPriv);
+   assert(intelfb->stfb);
+   st_resize_framebuffer(intelfb->stfb, dPriv->w, dPriv->h);
+}
+
+
+
+void
+intelSwapBuffers(__DRIdrawablePrivate * dPriv)
+{
+   struct intel_framebuffer *intel_fb = intel_framebuffer(dPriv);
+   struct pipe_surface *back_surf;
+
+   assert(intel_fb);
+   assert(intel_fb->stfb);
+
+   back_surf = st_get_framebuffer_surface(intel_fb->stfb,
+                                          ST_SURFACE_BACK_LEFT);
+   if (back_surf) {
+      st_notify_swapbuffers(intel_fb->stfb);
+      intelDisplaySurface(dPriv, back_surf, NULL);
+      st_notify_swapbuffers_complete(intel_fb->stfb);
+   }
+}
+
+
+/**
+ * Called via glXCopySubBufferMESA() to copy a subrect of the back
+ * buffer to the front buffer/screen.
+ */
+void
+intelCopySubBuffer(__DRIdrawablePrivate * dPriv, int x, int y, int w, int h)
+{
+   struct intel_framebuffer *intel_fb = intel_framebuffer(dPriv);
+   struct pipe_surface *back_surf;
+
+   assert(intel_fb);
+   assert(intel_fb->stfb);
+
+   back_surf = st_get_framebuffer_surface(intel_fb->stfb,
+                                          ST_SURFACE_BACK_LEFT);
+   if (back_surf) {
+      drm_clip_rect_t rect;
+      rect.x1 = x;
+      rect.y1 = y;
+      rect.x2 = w;
+      rect.y2 = h;
+
+      st_notify_swapbuffers(intel_fb->stfb);
+      intelDisplaySurface(dPriv, back_surf, &rect);
+   }
+}
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_swapbuffers.h b/src/gallium/winsys/egl_drm/intel/intel_swapbuffers.h
new file mode 100644
index 0000000000..904f26732e
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_swapbuffers.h
@@ -0,0 +1,47 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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.
+ * 
+ **************************************************************************/
+
+#ifndef INTEL_SWAPBUFFERS_H
+#define INTEL_SWAPBUFFERS_H
+
+
+struct pipe_surface;
+
+#if 0
+extern void intelDisplaySurface(__DRIdrawablePrivate * dPriv,
+                                struct pipe_surface *surf,
+                                const drm_clip_rect_t * rect);
+
+extern void intelSwapBuffers(__DRIdrawablePrivate * dPriv);
+
+extern void intelCopySubBuffer(__DRIdrawablePrivate * dPriv,
+                               int x, int y, int w, int h);
+
+extern void intelUpdateWindowSize(__DRIdrawablePrivate *dPriv);
+#endif
+
+#endif /* INTEL_SWAPBUFFERS_H */
diff --git a/src/gallium/winsys/egl_drm/intel/intel_winsys.h b/src/gallium/winsys/egl_drm/intel/intel_winsys.h
new file mode 100644
index 0000000000..d0a319f9a4
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_winsys.h
@@ -0,0 +1,73 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN 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.
+ * 
+ **************************************************************************/
+
+#ifndef INTEL_WINSYS_H
+#define INTEL_WINSYS_H
+
+#include "pipe/p_state.h"
+
+struct intel_context;
+struct pipe_context;
+struct pipe_winsys;
+struct pipe_buffer;
+struct _DriBufferObject;
+
+struct pipe_winsys *
+intel_create_pipe_winsys( int fd, struct _DriFreeSlabManager *fMan );
+
+void
+intel_destroy_pipe_winsys( struct pipe_winsys *winsys );
+
+struct pipe_context *
+intel_create_softpipe( struct intel_context *intel,
+                       struct pipe_winsys *winsys );
+
+struct pipe_context *
+intel_create_i915simple( struct intel_context *intel,
+                       struct pipe_winsys *winsys );
+
+
+struct intel_buffer {
+   struct pipe_buffer base;
+   struct _DriBufferObject *driBO;
+};
+
+static INLINE struct intel_buffer *
+intel_buffer( struct pipe_buffer *buf )
+{
+   return (struct intel_buffer *)buf;
+}
+
+static INLINE struct _DriBufferObject *
+dri_bo( struct pipe_buffer *buf )
+{
+   return intel_buffer(buf)->driBO;
+}
+
+
+
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c b/src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c
new file mode 100644
index 0000000000..8ec5c7e82a
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_winsys_i915.c
@@ -0,0 +1,184 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#include <stdlib.h>
+#include <xf86drm.h>
+#include "ws_dri_bufpool.h"
+#include "ws_dri_bufmgr.h"
+
+#include "intel_context.h"
+#include "intel_batchbuffer.h"
+#include "intel_winsys.h"
+
+#include "pipe/p_util.h"
+#include "pipe/p_winsys.h"
+#include "i915simple/i915_winsys.h"
+#include "i915simple/i915_screen.h"
+
+
+struct intel_i915_winsys {
+   struct i915_winsys winsys;   /**< batch buffer funcs */
+   struct pipe_winsys *pws;
+   struct intel_context *intel;
+};
+
+
+/* Turn a i915simple winsys into an intel/i915simple winsys:
+ */
+static inline struct intel_i915_winsys *
+intel_i915_winsys( struct i915_winsys *sws )
+{
+   return (struct intel_i915_winsys *)sws;
+}
+
+
+/* Simple batchbuffer interface:
+ */
+
+static unsigned *intel_i915_batch_start( struct i915_winsys *sws,
+					 unsigned dwords,
+					 unsigned relocs )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+
+   /* XXX: check relocs. 
+    */
+   if (intel_batchbuffer_space( intel->batch ) >= dwords * 4) {
+      /* XXX: Hmm, the driver can't really do much with this pointer: 
+       */
+      return (unsigned *)intel->batch->ptr;	
+   }
+   else 
+      return NULL;
+}
+
+static void intel_i915_batch_dword( struct i915_winsys *sws,
+				    unsigned dword )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+   intel_batchbuffer_emit_dword( intel->batch, dword );
+}
+
+static void intel_i915_batch_reloc( struct i915_winsys *sws,
+			     struct pipe_buffer *buf,
+			     unsigned access_flags,
+			     unsigned delta )
+{
+   struct intel_context *intel = intel_i915_winsys(sws)->intel;
+   unsigned flags = DRM_BO_FLAG_MEM_TT;
+   unsigned mask = DRM_BO_MASK_MEM;
+
+   if (access_flags & I915_BUFFER_ACCESS_WRITE) {
+      flags |= DRM_BO_FLAG_WRITE;
+      mask |= DRM_BO_FLAG_WRITE;
+   }
+
+   if (access_flags & I915_BUFFER_ACCESS_READ) {
+      flags |= DRM_BO_FLAG_READ;
+      mask |= DRM_BO_FLAG_READ;
+   }
+
+#if 0 /* JB old */
+   intel_batchbuffer_emit_reloc( intel->batch,
+				 dri_bo( buf ),
+				 flags, mask,
+				 delta );
+#else /* new */
+   intel_offset_relocation( intel->batch,
+			    delta,
+			    dri_bo( buf ),
+			    flags,
+			    mask );
+#endif
+}
+
+
+
+static void intel_i915_batch_flush( struct i915_winsys *sws,
+                                    struct pipe_fence_handle **fence )
+{
+   struct intel_i915_winsys *iws = intel_i915_winsys(sws);
+   struct intel_context *intel = iws->intel;
+   union {
+      struct _DriFenceObject *dri;
+      struct pipe_fence_handle *pipe;
+   } fu;
+
+   if (fence)
+      assert(!*fence);
+
+   fu.dri = intel_batchbuffer_flush( intel->batch );
+
+   if (!fu.dri) {
+      assert(0);
+      *fence = NULL;
+      return;
+   }
+
+   if (fu.dri) {
+      if (fence)
+	 *fence = fu.pipe;
+      else
+	 driFenceUnReference(&fu.dri);
+   }
+
+}
+
+
+/**
+ * Create i915 hardware rendering context.
+ */
+struct pipe_context *
+intel_create_i915simple( struct intel_context *intel,
+                         struct pipe_winsys *winsys )
+{
+   struct intel_i915_winsys *iws = CALLOC_STRUCT( intel_i915_winsys );
+   struct pipe_screen *screen;
+   
+   /* Fill in this struct with callbacks that i915simple will need to
+    * communicate with the window system, buffer manager, etc. 
+    */
+   iws->winsys.batch_start = intel_i915_batch_start;
+   iws->winsys.batch_dword = intel_i915_batch_dword;
+   iws->winsys.batch_reloc = intel_i915_batch_reloc;
+   iws->winsys.batch_flush = intel_i915_batch_flush;
+   iws->pws = winsys;
+   iws->intel = intel;
+
+   screen = i915_create_screen(winsys, PCI_CHIP_I945_GM);
+   assert(screen);
+
+   /* Create the i915simple context:
+    */
+   return i915_create_context( screen,
+                               winsys,
+                               &iws->winsys );
+}
diff --git a/src/gallium/winsys/egl_drm/intel/intel_winsys_pipe.c b/src/gallium/winsys/egl_drm/intel/intel_winsys_pipe.c
new file mode 100644
index 0000000000..8bf8c21439
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_winsys_pipe.c
@@ -0,0 +1,338 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#include <stdlib.h>
+#include <xf86drm.h>
+//#include "dri_bufpool.h"
+//#include "dri_bufmgr.h"
+
+#include "intel_context.h"
+#include "intel_winsys.h"
+#include "intel_swapbuffers.h"
+#include "intel_batchbuffer.h"
+
+#include "pipe/p_winsys.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_state.h"
+#include "pipe/p_util.h"
+#include "pipe/p_inlines.h"
+
+
+
+struct intel_pipe_winsys {
+   struct pipe_winsys winsys;
+   struct _DriBufferPool *regionPool;
+   struct _DriFreeSlabManager *fMan;
+};
+
+
+
+/* Turn a pipe winsys into an intel/pipe winsys:
+ */
+static inline struct intel_pipe_winsys *
+intel_pipe_winsys( struct pipe_winsys *winsys )
+{
+   return (struct intel_pipe_winsys *)winsys;
+}
+
+
+/* Most callbacks map direcly onto dri_bufmgr operations:
+ */
+static void *intel_buffer_map(struct pipe_winsys *winsys, 
+			      struct pipe_buffer *buf,
+			      unsigned flags )
+{
+   unsigned drm_flags = 0;
+   
+   if (flags & PIPE_BUFFER_USAGE_CPU_WRITE)
+      drm_flags |= DRM_BO_FLAG_WRITE;
+
+   if (flags & PIPE_BUFFER_USAGE_CPU_READ)
+      drm_flags |= DRM_BO_FLAG_READ;
+
+   return driBOMap( dri_bo(buf), drm_flags, 0 );
+}
+
+static void intel_buffer_unmap(struct pipe_winsys *winsys, 
+			       struct pipe_buffer *buf)
+{
+   driBOUnmap( dri_bo(buf) );
+}
+
+
+static void
+intel_buffer_destroy(struct pipe_winsys *winsys,
+		     struct pipe_buffer *buf)
+{
+   driBOUnReference( dri_bo(buf) );
+   FREE(buf);
+}
+
+
+/* Pipe has no concept of pools.  We choose the tex/region pool
+ * for all buffers.
+ * Grabs the hardware lock!
+ */
+static struct pipe_buffer *
+intel_buffer_create(struct pipe_winsys *winsys, 
+                    unsigned alignment, 
+                    unsigned usage, 
+                    unsigned size )
+{
+   struct intel_buffer *buffer = CALLOC_STRUCT( intel_buffer );
+   struct intel_pipe_winsys *iws = intel_pipe_winsys(winsys);
+   unsigned flags = 0;
+
+   buffer->base.refcount = 1;
+   buffer->base.alignment = alignment;
+   buffer->base.usage = usage;
+   buffer->base.size = size;
+
+   if (usage & (PIPE_BUFFER_USAGE_VERTEX /*| IWS_BUFFER_USAGE_LOCAL*/)) {
+      flags |= DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_CACHED;
+   } else {
+      flags |= DRM_BO_FLAG_MEM_VRAM | DRM_BO_FLAG_MEM_TT;
+   }
+
+   if (usage & PIPE_BUFFER_USAGE_GPU_READ)
+      flags |= DRM_BO_FLAG_READ;
+
+   if (usage & PIPE_BUFFER_USAGE_GPU_WRITE)
+      flags |= DRM_BO_FLAG_WRITE;
+
+   /* drm complains if we don't set any read/write flags.
+    */
+   if ((flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE)) == 0)
+      flags |= DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE;
+
+#if 0
+   if (flags & IWS_BUFFER_USAGE_EXE)
+      flags |= DRM_BO_FLAG_EXE;
+
+   if (usage & IWS_BUFFER_USAGE_CACHED)
+      flags |= DRM_BO_FLAG_CACHED;
+#endif
+
+   driGenBuffers( iws->regionPool, 
+		  "pipe buffer", 1, &buffer->driBO, alignment, flags, 0 );
+
+   driBOData( buffer->driBO, size, NULL, iws->regionPool, 0 );
+
+   return &buffer->base;
+}
+
+
+static struct pipe_buffer *
+intel_user_buffer_create(struct pipe_winsys *winsys, void *ptr, unsigned bytes)
+{
+   struct intel_buffer *buffer = CALLOC_STRUCT( intel_buffer );
+   struct intel_pipe_winsys *iws = intel_pipe_winsys(winsys);
+
+   driGenUserBuffer( iws->regionPool, 
+		     "pipe user buffer", &buffer->driBO, ptr, bytes );
+
+   buffer->base.refcount = 1;
+
+   return &buffer->base;
+}
+
+
+/* The state tracker (should!) keep track of whether the fake
+ * frontbuffer has been touched by any rendering since the last time
+ * we copied its contents to the real frontbuffer.  Our task is easy:
+ */
+static void
+intel_flush_frontbuffer( struct pipe_winsys *winsys,
+                         struct pipe_surface *surf,
+                         void *context_private)
+{
+#if 0
+   struct intel_context *intel = (struct intel_context *) context_private;
+   __DRIdrawablePrivate *dPriv = intel->driDrawable;
+
+   intelDisplaySurface(dPriv, surf, NULL);
+#endif
+}
+
+
+static struct pipe_surface *
+intel_i915_surface_alloc(struct pipe_winsys *winsys)
+{
+   struct pipe_surface *surf = CALLOC_STRUCT(pipe_surface);
+   if (surf) {
+      surf->refcount = 1;
+      surf->winsys = winsys;
+   }
+   return surf;
+}
+
+
+/**
+ * Round n up to next multiple.
+ */
+static INLINE unsigned
+round_up(unsigned n, unsigned multiple)
+{
+   return (n + multiple - 1) & ~(multiple - 1);
+}
+
+/**
+ * Copied from xm_winsys.c
+ */
+static int
+intel_i915_surface_alloc_storage(struct pipe_winsys *winsys,
+                                 struct pipe_surface *surf,
+                                 unsigned width, unsigned height,
+                                 enum pipe_format format, 
+                                 unsigned flags)
+{
+   const unsigned alignment = 64;
+   //int ret;
+
+   surf->width = width;
+   surf->height = height;
+   surf->format = format;
+   surf->cpp = pf_get_size(format);
+   surf->pitch = round_up(width, alignment / surf->cpp);
+
+   assert(!surf->buffer);
+   surf->buffer = winsys->buffer_create(winsys, alignment,
+                                        PIPE_BUFFER_USAGE_PIXEL,
+                                        surf->pitch * surf->cpp * height);
+   if(!surf->buffer)
+      return -1;
+
+   return 0;
+}
+
+
+static void
+intel_i915_surface_release(struct pipe_winsys *winsys, struct pipe_surface **s)
+{
+   struct pipe_surface *surf = *s;
+   surf->refcount--;
+   if (surf->refcount == 0) {
+      if (surf->buffer)
+	 pipe_buffer_reference(winsys, &surf->buffer, NULL);
+      free(surf);
+   }
+   *s = NULL;
+}
+
+
+
+static const char *
+intel_get_name( struct pipe_winsys *winsys )
+{
+   return "Intel/EGL/ttm";
+}
+
+static void
+intel_fence_reference( struct pipe_winsys *sws,
+                       struct pipe_fence_handle **ptr,
+                       struct pipe_fence_handle *fence )
+{
+   if (*ptr)
+      driFenceUnReference((struct _DriFenceObject **)ptr);
+
+   if (fence)
+      *ptr = (struct pipe_fence_handle *)driFenceReference((struct _DriFenceObject *)fence);
+}
+
+static int
+intel_fence_signalled( struct pipe_winsys *sws,
+                       struct pipe_fence_handle *fence,
+                       unsigned flag )
+{
+   return driFenceSignaled((struct _DriFenceObject *)fence, flag);
+}
+
+static int
+intel_fence_finish( struct pipe_winsys *sws,
+                    struct pipe_fence_handle *fence,
+                    unsigned flag )
+{
+   /* JB: Lets allways lazy wait */
+   return driFenceFinish((struct _DriFenceObject *)fence, flag, 1);
+}
+
+struct pipe_winsys *
+intel_create_pipe_winsys( int fd, struct _DriFreeSlabManager *fMan )
+{
+   struct intel_pipe_winsys *iws = CALLOC_STRUCT( intel_pipe_winsys );
+   
+   /* Fill in this struct with callbacks that pipe will need to
+    * communicate with the window system, buffer manager, etc. 
+    *
+    * Pipe would be happy with a malloc based memory manager, but
+    * the SwapBuffers implementation in this winsys driver requires
+    * that rendering be done to an appropriate _DriBufferObject.  
+    */
+   iws->winsys.buffer_create = intel_buffer_create;
+   iws->winsys.user_buffer_create = intel_user_buffer_create;
+   iws->winsys.buffer_map = intel_buffer_map;
+   iws->winsys.buffer_unmap = intel_buffer_unmap;
+   iws->winsys.buffer_destroy = intel_buffer_destroy;
+   iws->winsys.flush_frontbuffer = intel_flush_frontbuffer;
+   iws->winsys.get_name = intel_get_name;
+   iws->winsys.surface_alloc = intel_i915_surface_alloc;
+   iws->winsys.surface_alloc_storage = intel_i915_surface_alloc_storage;
+   iws->winsys.surface_release = intel_i915_surface_release;
+
+   iws->winsys.fence_reference = intel_fence_reference;
+   iws->winsys.fence_signalled = intel_fence_signalled;
+   iws->winsys.fence_finish = intel_fence_finish;
+
+   if (fd)
+      iws->regionPool = driSlabPoolInit(fd,
+			DRM_BO_FLAG_READ |
+			DRM_BO_FLAG_WRITE |
+			DRM_BO_FLAG_MEM_TT,
+			DRM_BO_FLAG_READ |
+			DRM_BO_FLAG_WRITE |
+			DRM_BO_FLAG_MEM_TT,
+			64, 6, 16, 4096, 0,
+			fMan);
+
+   return &iws->winsys;
+}
+
+
+void
+intel_destroy_pipe_winsys( struct pipe_winsys *winsys )
+{
+   struct intel_pipe_winsys *iws = intel_pipe_winsys(winsys);
+   if (iws->regionPool) {
+      driPoolTakeDown(iws->regionPool);
+   }
+   free(iws);
+}
+
diff --git a/src/gallium/winsys/egl_drm/intel/intel_winsys_softpipe.c b/src/gallium/winsys/egl_drm/intel/intel_winsys_softpipe.c
new file mode 100644
index 0000000000..0bc2dc4002
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/intel_winsys_softpipe.c
@@ -0,0 +1,82 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#include "intel_context.h"
+#include "intel_winsys.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_util.h"
+#include "pipe/p_format.h"
+#include "softpipe/sp_winsys.h"
+
+
+struct intel_softpipe_winsys {
+   struct softpipe_winsys sws;
+   struct intel_context *intel;
+};
+
+/**
+ * Return list of surface formats supported by this driver.
+ */
+static boolean
+intel_is_format_supported(struct softpipe_winsys *sws,
+                          enum pipe_format format)
+{
+   switch(format) {
+   case PIPE_FORMAT_A8R8G8B8_UNORM:
+   case PIPE_FORMAT_R5G6B5_UNORM:
+   case PIPE_FORMAT_S8Z24_UNORM:
+      return TRUE;
+   default:
+      return FALSE;
+   }
+}
+
+
+/**
+ * Create rendering context which uses software rendering.
+ */
+struct pipe_context *
+intel_create_softpipe( struct intel_context *intel,
+                       struct pipe_winsys *winsys )
+{
+   struct intel_softpipe_winsys *isws = CALLOC_STRUCT( intel_softpipe_winsys );
+   struct pipe_screen *screen = softpipe_create_screen(winsys);
+   
+   /* Fill in this struct with callbacks that softpipe will need to
+    * communicate with the window system, buffer manager, etc. 
+    */
+   isws->sws.is_format_supported = intel_is_format_supported;
+   isws->intel = intel;
+
+   /* Create the softpipe context:
+    */
+   return softpipe_create( screen, winsys, &isws->sws );
+}
diff --git a/src/gallium/winsys/egl_drm/intel/ws_dri_bufmgr.c b/src/gallium/winsys/egl_drm/intel/ws_dri_bufmgr.c
new file mode 100644
index 0000000000..1bc1089352
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/ws_dri_bufmgr.c
@@ -0,0 +1,953 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ *          Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#include <xf86drm.h>
+#include <stdlib.h>
+#include "glthread.h"
+#include "errno.h"
+#include "ws_dri_bufmgr.h"
+#include "string.h"
+#include "imports.h"
+#include "ws_dri_bufpool.h"
+#include "ws_dri_fencemgr.h"
+
+/*
+ * This lock is here to protect drmBO structs changing underneath us during a
+ * validate list call, since validatelist cannot take individiual locks for
+ * each drmBO. Validatelist takes this lock in write mode. Any access to an
+ * individual drmBO should take this lock in read mode, since in that case, the
+ * driBufferObject mutex will protect the access. Locking order is 
+ * driBufferObject mutex - > this rw lock.
+ */
+
+_glthread_DECLARE_STATIC_MUTEX(bmMutex);
+_glthread_DECLARE_STATIC_COND(bmCond);
+
+static int kernelReaders = 0;
+static int num_buffers = 0;
+static int num_user_buffers = 0;
+
+static drmBO *drmBOListBuf(void *iterator)
+{
+    drmBONode *node;
+    drmMMListHead *l = (drmMMListHead *) iterator;
+    node = DRMLISTENTRY(drmBONode, l, head);
+    return node->buf;
+}
+
+static void *drmBOListIterator(drmBOList *list)
+{
+    void *ret = list->list.next;
+
+    if (ret == &list->list)
+	return NULL;
+    return ret;
+}
+
+static void *drmBOListNext(drmBOList *list, void *iterator)
+{
+    void *ret;
+
+    drmMMListHead *l = (drmMMListHead *) iterator;
+    ret = l->next;
+    if (ret == &list->list)
+	return NULL;
+    return ret;
+}
+
+static drmBONode *drmAddListItem(drmBOList *list, drmBO *item, 
+				 uint64_t arg0,
+				 uint64_t arg1)
+{
+    drmBONode *node;
+    drmMMListHead *l;
+
+    l = list->free.next;
+    if (l == &list->free) {
+	node = (drmBONode *) malloc(sizeof(*node));
+	if (!node) {
+	    return NULL;
+	}
+	list->numCurrent++;
+    }
+    else {
+	DRMLISTDEL(l);
+	node = DRMLISTENTRY(drmBONode, l, head);
+    }
+    node->buf = item;
+    node->arg0 = arg0;
+    node->arg1 = arg1;
+    DRMLISTADD(&node->head, &list->list);
+    list->numOnList++;
+    return node;
+}
+  
+static int drmAddValidateItem(drmBOList *list, drmBO *buf, uint64_t flags, 
+			      uint64_t mask, int *newItem)
+{
+    drmBONode *node, *cur;
+    drmMMListHead *l;
+
+    *newItem = 0;
+    cur = NULL;
+
+    for (l = list->list.next; l != &list->list; l = l->next) {
+	node = DRMLISTENTRY(drmBONode, l, head);
+	if (node->buf == buf) {
+	    cur = node;
+	    break;
+	}
+    }
+    if (!cur) {
+	cur = drmAddListItem(list, buf, flags, mask);
+	if (!cur) {
+	    return -ENOMEM;
+	}
+	*newItem = 1;
+	cur->arg0 = flags;
+	cur->arg1 = mask;
+    }
+    else {
+        uint64_t memFlags = cur->arg0 & flags & DRM_BO_MASK_MEM;
+	uint64_t accFlags = (cur->arg0 | flags) & ~DRM_BO_MASK_MEM;
+
+	if (mask & cur->arg1 & ~DRM_BO_MASK_MEM  & (cur->arg0 ^ flags)) {
+	    return -EINVAL;
+	}
+
+	cur->arg1 |= mask;
+	cur->arg0 = (cur->arg0 & ~mask) | ((memFlags | accFlags) & mask);
+
+	if (((cur->arg1 & DRM_BO_MASK_MEM) != 0) &&
+	    (cur->arg0 & DRM_BO_MASK_MEM) == 0) {
+	    return -EINVAL;
+	}
+    }
+    return 0;
+}
+
+static void drmBOFreeList(drmBOList *list)
+{
+    drmBONode *node;
+    drmMMListHead *l;
+
+    l = list->list.next;
+    while(l != &list->list) {
+	DRMLISTDEL(l);
+	node = DRMLISTENTRY(drmBONode, l, head);
+	free(node);
+	l = list->list.next;
+	list->numCurrent--;
+	list->numOnList--;
+    }
+
+    l = list->free.next;
+    while(l != &list->free) {
+	DRMLISTDEL(l);
+	node = DRMLISTENTRY(drmBONode, l, head);
+	free(node);
+	l = list->free.next;
+	list->numCurrent--;
+    }
+}
+
+static int drmAdjustListNodes(drmBOList *list)
+{
+    drmBONode *node;
+    drmMMListHead *l;
+    int ret = 0;
+
+    while(list->numCurrent < list->numTarget) {
+	node = (drmBONode *) malloc(sizeof(*node));
+	if (!node) {
+	    ret = -ENOMEM;
+	    break;
+	}
+	list->numCurrent++;
+	DRMLISTADD(&node->head, &list->free);
+    }
+
+    while(list->numCurrent > list->numTarget) {
+	l = list->free.next;
+	if (l == &list->free)
+	    break;
+	DRMLISTDEL(l);
+	node = DRMLISTENTRY(drmBONode, l, head);
+	free(node);
+	list->numCurrent--;
+    }
+    return ret;
+}
+
+static int drmBOCreateList(int numTarget, drmBOList *list)
+{
+    DRMINITLISTHEAD(&list->list);
+    DRMINITLISTHEAD(&list->free);
+    list->numTarget = numTarget;
+    list->numCurrent = 0;
+    list->numOnList = 0;
+    return drmAdjustListNodes(list);
+}
+
+static int drmBOResetList(drmBOList *list)
+{
+    drmMMListHead *l;
+    int ret;
+
+    ret = drmAdjustListNodes(list);
+    if (ret)
+	return ret;
+
+    l = list->list.next;
+    while (l != &list->list) {
+	DRMLISTDEL(l);
+	DRMLISTADD(l, &list->free);
+	list->numOnList--;
+	l = list->list.next;
+    }
+    return drmAdjustListNodes(list);
+}
+
+void driWriteLockKernelBO(void)
+{
+    _glthread_LOCK_MUTEX(bmMutex);
+    while(kernelReaders != 0)
+	_glthread_COND_WAIT(bmCond, bmMutex);
+}
+    
+void driWriteUnlockKernelBO(void)
+{
+    _glthread_UNLOCK_MUTEX(bmMutex);
+}    
+
+void driReadLockKernelBO(void)
+{
+    _glthread_LOCK_MUTEX(bmMutex);
+    kernelReaders++;
+    _glthread_UNLOCK_MUTEX(bmMutex);
+}
+
+void driReadUnlockKernelBO(void)
+{
+    _glthread_LOCK_MUTEX(bmMutex);
+    if (--kernelReaders == 0)
+        _glthread_COND_BROADCAST(bmCond);
+    _glthread_UNLOCK_MUTEX(bmMutex);
+}
+
+
+
+
+/*
+ * TODO: Introduce fence pools in the same way as 
+ * buffer object pools.
+ */
+
+typedef struct _DriBufferObject
+{
+   DriBufferPool *pool;
+   _glthread_Mutex mutex;
+   int refCount;
+   const char *name;
+   uint64_t flags;
+   unsigned hint;
+   unsigned alignment;
+   unsigned createdByReference;
+   void *private;
+   /* user-space buffer: */
+   unsigned userBuffer;
+   void *userData;
+   unsigned userSize;
+} DriBufferObject;
+
+typedef struct _DriBufferList {
+    drmBOList drmBuffers;  /* List of kernel buffers needing validation */
+    drmBOList driBuffers;  /* List of user-space buffers needing validation */
+} DriBufferList;
+
+
+void
+bmError(int val, const char *file, const char *function, int line)
+{
+   _mesa_printf("Fatal video memory manager error \"%s\".\n"
+                "Check kernel logs or set the LIBGL_DEBUG\n"
+                "environment variable to \"verbose\" for more info.\n"
+                "Detected in file %s, line %d, function %s.\n",
+                strerror(-val), file, line, function);
+#ifndef NDEBUG
+   abort();
+#else
+   abort();
+#endif
+}
+
+extern drmBO *
+driBOKernel(struct _DriBufferObject *buf)
+{
+   drmBO *ret;
+
+   driReadLockKernelBO();
+   _glthread_LOCK_MUTEX(buf->mutex);
+   assert(buf->private != NULL);
+   ret = buf->pool->kernel(buf->pool, buf->private);
+   if (!ret)
+      BM_CKFATAL(-EINVAL);
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+   driReadUnlockKernelBO();
+
+   return ret;
+}
+
+void
+driBOWaitIdle(struct _DriBufferObject *buf, int lazy)
+{
+
+  /*
+   * This function may block. Is it sane to keep the mutex held during
+   * that time??
+   */
+
+   _glthread_LOCK_MUTEX(buf->mutex);
+   BM_CKFATAL(buf->pool->waitIdle(buf->pool, buf->private, &buf->mutex, lazy));
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+void *
+driBOMap(struct _DriBufferObject *buf, unsigned flags, unsigned hint)
+{
+   void *virtual;
+   int retval;
+
+   if (buf->userBuffer) {
+      return buf->userData;
+   }
+
+   _glthread_LOCK_MUTEX(buf->mutex);
+   assert(buf->private != NULL);
+   retval = buf->pool->map(buf->pool, buf->private, flags, hint, 
+			   &buf->mutex, &virtual);
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+
+   return retval == 0 ? virtual : NULL;
+}
+
+void
+driBOUnmap(struct _DriBufferObject *buf)
+{
+   if (buf->userBuffer)
+      return;
+
+   assert(buf->private != NULL);
+   _glthread_LOCK_MUTEX(buf->mutex);
+   BM_CKFATAL(buf->pool->unmap(buf->pool, buf->private));
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+unsigned long
+driBOOffset(struct _DriBufferObject *buf)
+{
+   unsigned long ret;
+
+   assert(buf->private != NULL);
+
+   _glthread_LOCK_MUTEX(buf->mutex);
+   ret = buf->pool->offset(buf->pool, buf->private);
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+   return ret;
+}
+
+unsigned long
+driBOPoolOffset(struct _DriBufferObject *buf)
+{
+   unsigned long ret;
+
+   assert(buf->private != NULL);
+
+   _glthread_LOCK_MUTEX(buf->mutex);
+   ret = buf->pool->poolOffset(buf->pool, buf->private);
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+   return ret;
+}
+
+uint64_t 
+driBOFlags(struct _DriBufferObject *buf)
+{
+   uint64_t ret;
+
+   assert(buf->private != NULL);
+
+   driReadLockKernelBO();
+   _glthread_LOCK_MUTEX(buf->mutex);
+   ret = buf->pool->flags(buf->pool, buf->private);
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+   driReadUnlockKernelBO();
+   return ret;
+}
+
+struct _DriBufferObject *
+driBOReference(struct _DriBufferObject *buf)
+{
+   _glthread_LOCK_MUTEX(buf->mutex);
+   if (++buf->refCount == 1) {
+      _glthread_UNLOCK_MUTEX(buf->mutex);
+      BM_CKFATAL(-EINVAL);
+   }
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+   return buf;
+}
+
+void
+driBOUnReference(struct _DriBufferObject *buf)
+{
+   int tmp;
+
+   if (!buf)
+      return;
+
+   _glthread_LOCK_MUTEX(buf->mutex);
+   tmp = --buf->refCount;
+   if (!tmp) {
+      _glthread_UNLOCK_MUTEX(buf->mutex);
+      if (buf->private) {
+	 if (buf->createdByReference)
+	    buf->pool->unreference(buf->pool, buf->private);
+	 else
+	    buf->pool->destroy(buf->pool, buf->private);
+      }
+      if (buf->userBuffer)
+	 num_user_buffers--;
+      else
+	 num_buffers--;
+      free(buf);
+   } else 
+     _glthread_UNLOCK_MUTEX(buf->mutex);
+
+}
+
+
+int
+driBOData(struct _DriBufferObject *buf,
+          unsigned size, const void *data, 
+	  DriBufferPool *newPool, 
+	  uint64_t flags)
+{
+   void *virtual = NULL;
+   int newBuffer;
+   int retval = 0;
+   struct _DriBufferPool *pool;
+
+   assert(!buf->userBuffer); /* XXX just do a memcpy? */
+
+   _glthread_LOCK_MUTEX(buf->mutex);
+   pool = buf->pool;
+
+   if (pool == NULL && newPool != NULL) {
+       buf->pool = newPool;
+       pool = newPool;
+   }
+   if (newPool == NULL)
+       newPool = pool;
+
+   if (!pool->create) {
+      _mesa_error(NULL, GL_INVALID_OPERATION,
+                  "driBOData called on invalid buffer\n");
+      BM_CKFATAL(-EINVAL);
+   }
+
+   newBuffer = (!buf->private || pool != newPool ||
+ 		pool->size(pool, buf->private) < size);
+
+   if (!flags)
+       flags = buf->flags;
+
+   if (newBuffer) {
+
+       if (buf->createdByReference) {
+	  _mesa_error(NULL, GL_INVALID_OPERATION,
+		     "driBOData requiring resizing called on "
+		     "shared buffer.\n");
+	  BM_CKFATAL(-EINVAL);
+       }
+
+       if (buf->private)
+	   buf->pool->destroy(buf->pool, buf->private);
+
+       pool = newPool;
+       buf->pool = newPool;
+       buf->private = pool->create(pool, size, flags, DRM_BO_HINT_DONT_FENCE,
+				  buf->alignment);
+      if (!buf->private)
+	  retval = -ENOMEM;
+
+      if (retval == 0)
+	  retval = pool->map(pool, buf->private,
+			     DRM_BO_FLAG_WRITE,
+			     DRM_BO_HINT_DONT_BLOCK, &buf->mutex, &virtual);
+   } else if (pool->map(pool, buf->private, DRM_BO_FLAG_WRITE,
+			DRM_BO_HINT_DONT_BLOCK, &buf->mutex, &virtual)) {
+       /*
+	* Buffer is busy. need to create a new one.
+	*/
+
+       void *newBuf;
+
+       newBuf = pool->create(pool, size, flags, DRM_BO_HINT_DONT_FENCE,
+			     buf->alignment);
+       if (newBuf) {
+	   buf->pool->destroy(buf->pool, buf->private);
+	   buf->private = newBuf;
+       }
+
+       retval = pool->map(pool, buf->private,
+			  DRM_BO_FLAG_WRITE, 0, &buf->mutex, &virtual);
+   } else {
+       uint64_t flag_diff = flags ^ buf->flags;
+       
+       /*
+	* We might need to change buffer flags.
+	*/
+
+       if (flag_diff){
+	   assert(pool->setStatus != NULL);
+	   BM_CKFATAL(pool->unmap(pool, buf->private));
+	   BM_CKFATAL(pool->setStatus(pool, buf->private, flag_diff,
+				      buf->flags));
+	   if (!data)
+	     goto out;
+
+	   retval = pool->map(pool, buf->private,
+			      DRM_BO_FLAG_WRITE, 0, &buf->mutex, &virtual);
+       }
+   }
+
+   if (retval == 0) {
+      if (data)
+	 memcpy(virtual, data, size);
+
+      BM_CKFATAL(pool->unmap(pool, buf->private));
+   }
+
+ out:
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+   
+   return retval;
+}
+
+void
+driBOSubData(struct _DriBufferObject *buf,
+             unsigned long offset, unsigned long size, const void *data)
+{
+   void *virtual;
+
+   assert(!buf->userBuffer); /* XXX just do a memcpy? */
+
+   _glthread_LOCK_MUTEX(buf->mutex);
+   if (size && data) {
+      BM_CKFATAL(buf->pool->map(buf->pool, buf->private,
+                                DRM_BO_FLAG_WRITE, 0, &buf->mutex,
+				&virtual));
+      memcpy((unsigned char *) virtual + offset, data, size);
+      BM_CKFATAL(buf->pool->unmap(buf->pool, buf->private));
+   }
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+void
+driBOGetSubData(struct _DriBufferObject *buf,
+                unsigned long offset, unsigned long size, void *data)
+{
+   void *virtual;
+
+   assert(!buf->userBuffer); /* XXX just do a memcpy? */
+
+   _glthread_LOCK_MUTEX(buf->mutex);
+   if (size && data) {
+      BM_CKFATAL(buf->pool->map(buf->pool, buf->private,
+                                DRM_BO_FLAG_READ, 0, &buf->mutex, &virtual));
+      memcpy(data, (unsigned char *) virtual + offset, size);
+      BM_CKFATAL(buf->pool->unmap(buf->pool, buf->private));
+   }
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+void
+driBOSetReferenced(struct _DriBufferObject *buf,
+		   unsigned long handle)
+{
+   _glthread_LOCK_MUTEX(buf->mutex);
+   if (buf->private != NULL) {
+      _mesa_error(NULL, GL_INVALID_OPERATION,
+                  "Invalid buffer for setReferenced\n");
+      BM_CKFATAL(-EINVAL);
+   
+   }
+   if (buf->pool->reference == NULL) {
+      _mesa_error(NULL, GL_INVALID_OPERATION,
+                  "Invalid buffer pool for setReferenced\n");
+      BM_CKFATAL(-EINVAL);
+   }
+   buf->private = buf->pool->reference(buf->pool, handle);
+   if (!buf->private) {
+      _mesa_error(NULL, GL_OUT_OF_MEMORY,
+                  "Invalid buffer pool for setStatic\n");
+      BM_CKFATAL(-ENOMEM);
+   }
+   buf->createdByReference = GL_TRUE;
+   buf->flags = buf->pool->kernel(buf->pool, buf->private)->flags;
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+int
+driGenBuffers(struct _DriBufferPool *pool,
+              const char *name,
+              unsigned n,
+              struct _DriBufferObject *buffers[],
+              unsigned alignment, uint64_t flags, unsigned hint)
+{
+   struct _DriBufferObject *buf;
+   int i;
+
+   flags = (flags) ? flags : DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_MEM_VRAM |
+      DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE;
+
+   ++num_buffers;
+
+   assert(pool);
+
+   for (i = 0; i < n; ++i) {
+      buf = (struct _DriBufferObject *) calloc(1, sizeof(*buf));
+      if (!buf)
+	 return -ENOMEM;
+
+      _glthread_INIT_MUTEX(buf->mutex);
+      _glthread_LOCK_MUTEX(buf->mutex);
+      buf->refCount = 1;
+      buf->flags = flags;
+      buf->hint = hint;
+      buf->name = name;
+      buf->alignment = alignment;
+      buf->pool = pool;
+      buf->createdByReference = 0;
+      _glthread_UNLOCK_MUTEX(buf->mutex);
+      buffers[i] = buf;
+   }
+   return 0;
+}
+
+void
+driGenUserBuffer(struct _DriBufferPool *pool,
+                 const char *name,
+                 struct _DriBufferObject **buffers,
+                 void *ptr, unsigned bytes)
+{
+   const unsigned alignment = 1, flags = 0, hint = 0;
+
+   --num_buffers; /* JB: is inced in GenBuffes */
+   driGenBuffers(pool, name, 1, buffers, alignment, flags, hint);
+   ++num_user_buffers;
+
+   (*buffers)->userBuffer = 1;
+   (*buffers)->userData = ptr;
+   (*buffers)->userSize = bytes;
+}
+
+void
+driDeleteBuffers(unsigned n, struct _DriBufferObject *buffers[])
+{
+   int i;
+
+   for (i = 0; i < n; ++i) {
+      driBOUnReference(buffers[i]);
+   }
+}
+
+
+void
+driInitBufMgr(int fd)
+{
+   ;
+}
+
+/*
+ * Note that lists are per-context and don't need mutex protection.
+ */
+
+struct _DriBufferList *
+driBOCreateList(int target)
+{
+    struct _DriBufferList *list = calloc(sizeof(*list), 1);
+
+    BM_CKFATAL(drmBOCreateList(target, &list->drmBuffers));
+    BM_CKFATAL(drmBOCreateList(target, &list->driBuffers));
+    return list;
+}
+
+int
+driBOResetList(struct _DriBufferList * list)
+{
+    int ret;
+    ret = drmBOResetList(&list->drmBuffers);
+    if (ret)
+	return ret;
+    ret = drmBOResetList(&list->driBuffers);
+    return ret;
+}
+
+void
+driBOFreeList(struct _DriBufferList * list)
+{
+   drmBOFreeList(&list->drmBuffers);
+   drmBOFreeList(&list->driBuffers);
+   free(list);
+}
+
+
+/*
+ * Copied from libdrm, because it is needed by driAddValidateItem.
+ */
+
+static drmBONode *
+driAddListItem(drmBOList * list, drmBO * item,
+	       uint64_t arg0, uint64_t arg1)
+{
+    drmBONode *node;
+    drmMMListHead *l;
+
+    l = list->free.next;
+    if (l == &list->free) {
+	node = (drmBONode *) malloc(sizeof(*node));
+	if (!node) {
+	    return NULL;
+	}
+	list->numCurrent++;
+    } else {
+	DRMLISTDEL(l);
+	node = DRMLISTENTRY(drmBONode, l, head);
+    }
+    memset(&node->bo_arg, 0, sizeof(node->bo_arg));
+    node->buf = item;
+    node->arg0 = arg0;
+    node->arg1 = arg1;
+    DRMLISTADDTAIL(&node->head, &list->list);
+    list->numOnList++;
+    return node;
+}
+
+/*
+ * Slightly modified version compared to the libdrm version.
+ * This one returns the list index of the buffer put on the list.
+ */
+
+static int
+driAddValidateItem(drmBOList * list, drmBO * buf, uint64_t flags,
+		   uint64_t mask, int *itemLoc, 
+		   struct _drmBONode **pnode)
+{
+    drmBONode *node, *cur;
+    drmMMListHead *l;
+    int count = 0;
+
+    cur = NULL;
+
+    for (l = list->list.next; l != &list->list; l = l->next) {
+	node = DRMLISTENTRY(drmBONode, l, head);
+	if (node->buf == buf) {
+	    cur = node;
+	    break;
+	}
+	count++;
+    }
+    if (!cur) {
+	cur = driAddListItem(list, buf, flags, mask);
+	if (!cur)
+	    return -ENOMEM;
+
+	cur->arg0 = flags;
+	cur->arg1 = mask;
+    } else {
+        uint64_t memFlags = cur->arg0 & flags & DRM_BO_MASK_MEM;
+	uint64_t accFlags = (cur->arg0 | flags) & ~DRM_BO_MASK_MEM;
+
+	if (mask & cur->arg1 & ~DRM_BO_MASK_MEM  & (cur->arg0 ^ flags)) {
+	    return -EINVAL;
+	}
+
+	cur->arg1 |= mask;
+	cur->arg0 = (cur->arg0 & ~mask) | ((memFlags | accFlags) & mask);
+
+	if (((cur->arg1 & DRM_BO_MASK_MEM) != 0) &&
+	    (cur->arg0 & DRM_BO_MASK_MEM) == 0) {
+	    return -EINVAL;
+	}
+    }
+    *itemLoc = count;
+    *pnode = cur;
+    return 0;
+}
+
+
+void
+driBOAddListItem(struct _DriBufferList * list, struct _DriBufferObject *buf,
+                 uint64_t flags, uint64_t mask, int *itemLoc, 
+		 struct _drmBONode **node)
+{
+   int newItem;
+   
+   _glthread_LOCK_MUTEX(buf->mutex);
+   BM_CKFATAL(driAddValidateItem(&list->drmBuffers,
+				 buf->pool->kernel(buf->pool, buf->private),
+                                 flags, mask, itemLoc, node));
+   BM_CKFATAL(drmAddValidateItem(&list->driBuffers, (drmBO *) buf,
+				 flags, mask, &newItem));
+   if (newItem) 
+     buf->refCount++;
+
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+drmBOList *driGetdrmBOList(struct _DriBufferList *list)
+{
+	driWriteLockKernelBO();
+	return &list->drmBuffers;
+}
+
+void driPutdrmBOList(struct _DriBufferList *list)
+{
+	driWriteUnlockKernelBO();
+}
+
+
+void
+driBOFence(struct _DriBufferObject *buf, struct _DriFenceObject *fence)
+{
+   _glthread_LOCK_MUTEX(buf->mutex);
+   if (buf->pool->fence)
+       BM_CKFATAL(buf->pool->fence(buf->pool, buf->private, fence));
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+
+}
+
+void
+driBOUnrefUserList(struct _DriBufferList *list)
+{
+    struct _DriBufferObject *buf;
+    void *curBuf;
+
+    curBuf = drmBOListIterator(&list->driBuffers);
+    while (curBuf) {
+	buf = (struct _DriBufferObject *)drmBOListBuf(curBuf);
+	driBOUnReference(buf);
+	curBuf = drmBOListNext(&list->driBuffers, curBuf);
+    }
+}
+
+struct _DriFenceObject *
+driBOFenceUserList(struct _DriFenceMgr *mgr,
+		   struct _DriBufferList *list, const char *name,
+		   drmFence *kFence)
+{
+    struct _DriFenceObject *fence;
+    struct _DriBufferObject *buf;
+    void *curBuf;
+
+    fence = driFenceCreate(mgr, kFence->fence_class, kFence->type,
+			   kFence, sizeof(*kFence));
+    curBuf = drmBOListIterator(&list->driBuffers);
+
+   /*
+    * User-space fencing callbacks.
+    */
+
+   while (curBuf) {
+        buf = (struct _DriBufferObject *) drmBOListBuf(curBuf);
+	driBOFence(buf, fence);
+	driBOUnReference(buf);
+	curBuf = drmBOListNext(&list->driBuffers, curBuf);
+   }
+
+   driBOResetList(list);
+   return fence;
+}
+   
+void
+driBOValidateUserList(struct _DriBufferList * list)
+{
+    void *curBuf;
+    struct _DriBufferObject *buf;
+
+    curBuf = drmBOListIterator(&list->driBuffers);
+
+    /*
+     * User-space validation callbacks.
+     */
+
+    while (curBuf) {
+	buf = (struct _DriBufferObject *) drmBOListBuf(curBuf);
+	_glthread_LOCK_MUTEX(buf->mutex);
+	if (buf->pool->validate)
+	    BM_CKFATAL(buf->pool->validate(buf->pool, buf->private, &buf->mutex));
+	_glthread_UNLOCK_MUTEX(buf->mutex);
+	curBuf = drmBOListNext(&list->driBuffers, curBuf);
+    }
+}
+
+
+void
+driPoolTakeDown(struct _DriBufferPool *pool)
+{
+   pool->takeDown(pool);
+
+}
+
+unsigned long 
+driBOSize(struct _DriBufferObject *buf)
+{
+  unsigned long size;
+
+   _glthread_LOCK_MUTEX(buf->mutex);
+   size = buf->pool->size(buf->pool, buf->private);
+   _glthread_UNLOCK_MUTEX(buf->mutex);
+
+  return size;
+
+}
+
+drmBOList *driBOGetDRMBuffers(struct _DriBufferList *list)
+{
+    return &list->drmBuffers;
+}
+
+drmBOList *driBOGetDRIBuffers(struct _DriBufferList *list)
+{
+    return &list->driBuffers;
+}
+    
diff --git a/src/gallium/winsys/egl_drm/intel/ws_dri_bufmgr.h b/src/gallium/winsys/egl_drm/intel/ws_dri_bufmgr.h
new file mode 100644
index 0000000000..fdaf5ee93a
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/ws_dri_bufmgr.h
@@ -0,0 +1,138 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ *          Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#ifndef _PSB_BUFMGR_H_
+#define _PSB_BUFMGR_H_
+#include <xf86mm.h>
+#include "i915_drm.h"
+#include "ws_dri_fencemgr.h"
+
+typedef struct _drmBONode
+{
+    drmMMListHead head;
+    drmBO *buf;
+    struct drm_i915_op_arg bo_arg;
+    uint64_t arg0;
+    uint64_t arg1;
+} drmBONode;
+
+typedef struct _drmBOList {
+    unsigned numTarget;
+    unsigned numCurrent;
+    unsigned numOnList;
+    drmMMListHead list;
+    drmMMListHead free;
+} drmBOList;
+
+
+struct _DriFenceObject;
+struct _DriBufferObject;
+struct _DriBufferPool;
+struct _DriBufferList;
+
+/*
+ * Return a pointer to the libdrm buffer object this DriBufferObject
+ * uses.
+ */
+
+extern drmBO *driBOKernel(struct _DriBufferObject *buf);
+extern void *driBOMap(struct _DriBufferObject *buf, unsigned flags,
+                      unsigned hint);
+extern void driBOUnmap(struct _DriBufferObject *buf);
+extern unsigned long driBOOffset(struct _DriBufferObject *buf);
+extern unsigned long driBOPoolOffset(struct _DriBufferObject *buf);
+
+extern uint64_t driBOFlags(struct _DriBufferObject *buf);
+extern struct _DriBufferObject *driBOReference(struct _DriBufferObject *buf);
+extern void driBOUnReference(struct _DriBufferObject *buf);
+
+extern int driBOData(struct _DriBufferObject *r_buf,
+		     unsigned size, const void *data, 
+		     struct _DriBufferPool *pool, uint64_t flags);
+
+extern void driBOSubData(struct _DriBufferObject *buf,
+                         unsigned long offset, unsigned long size,
+                         const void *data);
+extern void driBOGetSubData(struct _DriBufferObject *buf,
+                            unsigned long offset, unsigned long size,
+                            void *data);
+extern int driGenBuffers(struct _DriBufferPool *pool,
+			 const char *name,
+			 unsigned n,
+			 struct _DriBufferObject *buffers[],
+			 unsigned alignment, uint64_t flags, unsigned hint);
+extern void driGenUserBuffer(struct _DriBufferPool *pool,
+                             const char *name,
+                             struct _DriBufferObject *buffers[],
+                             void *ptr, unsigned bytes);
+extern void driDeleteBuffers(unsigned n, struct _DriBufferObject *buffers[]);
+extern void driInitBufMgr(int fd);
+extern struct _DriBufferList *driBOCreateList(int target);
+extern int driBOResetList(struct _DriBufferList * list);
+extern void driBOAddListItem(struct _DriBufferList * list, 
+			     struct _DriBufferObject *buf,
+                             uint64_t flags, uint64_t mask, int *itemLoc,
+			     struct _drmBONode **node);
+
+extern void driBOValidateList(int fd, struct _DriBufferList * list);
+extern void driBOFreeList(struct _DriBufferList * list);
+extern struct _DriFenceObject *driBOFenceUserList(struct _DriFenceMgr *mgr,
+						  struct _DriBufferList *list,
+						  const char *name,
+						  drmFence *kFence);
+extern void driBOUnrefUserList(struct _DriBufferList *list);
+extern void driBOValidateUserList(struct _DriBufferList * list);
+extern drmBOList *driGetdrmBOList(struct _DriBufferList *list);
+extern void driPutdrmBOList(struct _DriBufferList *list);
+
+extern void driBOFence(struct _DriBufferObject *buf,
+                       struct _DriFenceObject *fence);
+
+extern void driPoolTakeDown(struct _DriBufferPool *pool);
+extern void driBOSetReferenced(struct _DriBufferObject *buf,
+			       unsigned long handle);
+unsigned long driBOSize(struct _DriBufferObject *buf);
+extern void driBOWaitIdle(struct _DriBufferObject *buf, int lazy);
+extern void driPoolTakeDown(struct _DriBufferPool *pool);
+
+extern void driReadLockKernelBO(void);
+extern void driReadUnlockKernelBO(void);
+extern void driWriteLockKernelBO(void);
+extern void driWriteUnlockKernelBO(void);
+
+/*
+ * For debugging purposes.
+ */
+
+extern drmBOList *driBOGetDRMBuffers(struct _DriBufferList *list);
+extern drmBOList *driBOGetDRIBuffers(struct _DriBufferList *list);
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/ws_dri_bufpool.h b/src/gallium/winsys/egl_drm/intel/ws_dri_bufpool.h
new file mode 100644
index 0000000000..3a302e13d3
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/ws_dri_bufpool.h
@@ -0,0 +1,102 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#ifndef _PSB_BUFPOOL_H_
+#define _PSB_BUFPOOL_H_
+
+#include <xf86drm.h>
+#include <glthread.h>
+struct _DriFenceObject;
+
+typedef struct _DriBufferPool
+{
+   int fd;
+   int (*map) (struct _DriBufferPool * pool, void *private,
+               unsigned flags, int hint, _glthread_Mutex *mutex, 
+	       void **virtual);
+   int (*unmap) (struct _DriBufferPool * pool, void *private);
+   int (*destroy) (struct _DriBufferPool * pool, void *private);
+   unsigned long (*offset) (struct _DriBufferPool * pool, void *private);
+   unsigned long (*poolOffset) (struct _DriBufferPool * pool, void *private);
+   uint64_t (*flags) (struct _DriBufferPool * pool, void *private);
+   unsigned long (*size) (struct _DriBufferPool * pool, void *private);
+   void *(*create) (struct _DriBufferPool * pool, unsigned long size,
+                    uint64_t flags, unsigned hint, unsigned alignment);
+   void *(*reference) (struct _DriBufferPool * pool, unsigned handle);
+   int (*unreference) (struct _DriBufferPool * pool, void *private);
+   int (*fence) (struct _DriBufferPool * pool, void *private,
+                 struct _DriFenceObject * fence);
+   drmBO *(*kernel) (struct _DriBufferPool * pool, void *private);
+   int (*validate) (struct _DriBufferPool * pool, void *private, _glthread_Mutex *mutex);
+   int (*waitIdle) (struct _DriBufferPool *pool, void *private, _glthread_Mutex *mutex,
+		    int lazy);
+   int (*setStatus)  (struct _DriBufferPool *pool, void *private,
+		      uint64_t flag_diff, uint64_t old_flags);
+   void (*takeDown) (struct _DriBufferPool * pool);
+   void *data;
+} DriBufferPool;
+
+extern void bmError(int val, const char *file, const char *function,
+                    int line);
+#define BM_CKFATAL(val)					       \
+  do{							       \
+    int tstVal = (val);					       \
+    if (tstVal) 					       \
+      bmError(tstVal, __FILE__, __FUNCTION__, __LINE__);       \
+  } while(0);
+
+
+/*
+ * Builtin pools.
+ */
+
+/*
+ * Kernel buffer objects. Size in multiples of page size. Page size aligned.
+ */
+
+extern struct _DriBufferPool *driDRMPoolInit(int fd);
+extern struct _DriBufferPool *driMallocPoolInit(void);
+
+struct _DriFreeSlabManager;
+extern struct _DriBufferPool * driSlabPoolInit(int fd, uint64_t flags,
+					       uint64_t validMask,
+					       uint32_t smallestSize,
+					       uint32_t numSizes,
+					       uint32_t desiredNumBuffers,
+					       uint32_t maxSlabSize,
+					       uint32_t pageAlignment,
+					       struct _DriFreeSlabManager *fMan);
+extern void driFinishFreeSlabManager(struct _DriFreeSlabManager *fMan);
+extern struct _DriFreeSlabManager *
+driInitFreeSlabManager(uint32_t checkIntervalMsec, uint32_t slabTimeoutMsec);
+
+
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/ws_dri_drmpool.c b/src/gallium/winsys/egl_drm/intel/ws_dri_drmpool.c
new file mode 100644
index 0000000000..7c55dbc674
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/ws_dri_drmpool.c
@@ -0,0 +1,268 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include <xf86drm.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "ws_dri_bufpool.h"
+#include "ws_dri_bufmgr.h"
+#include "assert.h"
+
+/*
+ * Buffer pool implementation using DRM buffer objects as DRI buffer objects.
+ */
+
+static void *
+pool_create(struct _DriBufferPool *pool,
+            unsigned long size, uint64_t flags, unsigned hint,
+            unsigned alignment)
+{
+   drmBO *buf = (drmBO *) malloc(sizeof(*buf));
+   int ret;
+   unsigned pageSize = getpagesize();
+
+   if (!buf)
+      return NULL;
+
+   if ((alignment > pageSize) && (alignment % pageSize)) {
+      free(buf);
+      return NULL;
+   }
+
+   ret = drmBOCreate(pool->fd, size, alignment / pageSize,
+		     NULL,
+                     flags, hint, buf);
+   if (ret) {
+      free(buf);
+      return NULL;
+   }
+
+   return (void *) buf;
+}
+
+static void *
+pool_reference(struct _DriBufferPool *pool, unsigned handle)
+{
+   drmBO *buf = (drmBO *) malloc(sizeof(*buf));
+   int ret;
+
+   if (!buf)
+      return NULL;
+
+   ret = drmBOReference(pool->fd, handle, buf);
+
+   if (ret) {
+      free(buf);
+      return NULL;
+   }
+
+   return (void *) buf;
+}
+
+static int
+pool_destroy(struct _DriBufferPool *pool, void *private)
+{
+   int ret;
+   drmBO *buf = (drmBO *) private;
+   driReadLockKernelBO();
+   ret = drmBOUnreference(pool->fd, buf);
+   free(buf);
+   driReadUnlockKernelBO();
+   return ret;
+}
+
+static int
+pool_unreference(struct _DriBufferPool *pool, void *private)
+{
+   int ret;
+   drmBO *buf = (drmBO *) private;
+   driReadLockKernelBO();
+   ret = drmBOUnreference(pool->fd, buf);
+   free(buf);
+   driReadUnlockKernelBO();
+   return ret;
+}
+
+static int
+pool_map(struct _DriBufferPool *pool, void *private, unsigned flags,
+         int hint, _glthread_Mutex *mutex, void **virtual)
+{
+   drmBO *buf = (drmBO *) private;
+   int ret;
+   
+   driReadLockKernelBO();
+   ret = drmBOMap(pool->fd, buf, flags, hint, virtual);
+   driReadUnlockKernelBO();
+   return ret;
+}
+
+static int
+pool_unmap(struct _DriBufferPool *pool, void *private)
+{
+   drmBO *buf = (drmBO *) private;
+   int ret;
+
+   driReadLockKernelBO();
+   ret = drmBOUnmap(pool->fd, buf);
+   driReadUnlockKernelBO();
+   
+   return ret;
+}
+
+static unsigned long
+pool_offset(struct _DriBufferPool *pool, void *private)
+{
+   drmBO *buf = (drmBO *) private;
+   unsigned long offset;
+
+   driReadLockKernelBO();
+   assert(buf->flags & DRM_BO_FLAG_NO_MOVE);   
+   offset = buf->offset;
+   driReadUnlockKernelBO();
+
+   return buf->offset;
+}
+
+static unsigned long
+pool_poolOffset(struct _DriBufferPool *pool, void *private)
+{
+   return 0;
+}
+
+static uint64_t
+pool_flags(struct _DriBufferPool *pool, void *private)
+{
+   drmBO *buf = (drmBO *) private;
+   uint64_t flags;
+
+   driReadLockKernelBO();
+   flags = buf->flags;
+   driReadUnlockKernelBO();
+
+   return flags;
+}
+
+
+static unsigned long
+pool_size(struct _DriBufferPool *pool, void *private)
+{
+   drmBO *buf = (drmBO *) private;
+   unsigned long size;
+
+   driReadLockKernelBO();
+   size = buf->size;
+   driReadUnlockKernelBO();
+
+   return buf->size;
+}
+
+static int
+pool_fence(struct _DriBufferPool *pool, void *private,
+           struct _DriFenceObject *fence)
+{
+   /*
+    * Noop. The kernel handles all fencing.
+    */
+
+   return 0;
+}
+
+static drmBO *
+pool_kernel(struct _DriBufferPool *pool, void *private)
+{
+   return (drmBO *) private;
+}
+
+static int
+pool_waitIdle(struct _DriBufferPool *pool, void *private, _glthread_Mutex *mutex, 
+	      int lazy)
+{
+   drmBO *buf = (drmBO *) private;
+   int ret;
+
+   driReadLockKernelBO();
+   ret = drmBOWaitIdle(pool->fd, buf, (lazy) ? DRM_BO_HINT_WAIT_LAZY:0);
+   driReadUnlockKernelBO();
+
+   return ret;
+}
+
+   
+static void
+pool_takedown(struct _DriBufferPool *pool)
+{
+   free(pool);
+}
+
+/*static int
+pool_setStatus(struct _DriBufferPool *pool, void *private, 
+	       uint64_t flag_diff, uint64_t old_flags)
+{
+   drmBO *buf = (drmBO *) private;
+   uint64_t new_flags = old_flags ^ flag_diff;
+   int ret;
+
+   driReadLockKernelBO();
+   ret = drmBOSetStatus(pool->fd, buf, new_flags, flag_diff,
+			0, 0, 0);
+   driReadUnlockKernelBO();
+   return ret;
+}*/
+
+struct _DriBufferPool *
+driDRMPoolInit(int fd)
+{
+   struct _DriBufferPool *pool;
+
+   pool = (struct _DriBufferPool *) malloc(sizeof(*pool));
+
+   if (!pool)
+      return NULL;
+
+   pool->fd = fd;
+   pool->map = &pool_map;
+   pool->unmap = &pool_unmap;
+   pool->destroy = &pool_destroy;
+   pool->offset = &pool_offset;
+   pool->poolOffset = &pool_poolOffset;
+   pool->flags = &pool_flags;
+   pool->size = &pool_size;
+   pool->create = &pool_create;
+   pool->fence = &pool_fence;
+   pool->kernel = &pool_kernel;
+   pool->validate = NULL;
+   pool->waitIdle = &pool_waitIdle;
+   pool->takeDown = &pool_takedown;
+   pool->reference = &pool_reference;
+   pool->unreference = &pool_unreference;
+   pool->data = NULL;
+   return pool;
+}
diff --git a/src/gallium/winsys/egl_drm/intel/ws_dri_fencemgr.c b/src/gallium/winsys/egl_drm/intel/ws_dri_fencemgr.c
new file mode 100644
index 0000000000..1f893b47ce
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/ws_dri_fencemgr.c
@@ -0,0 +1,377 @@
+#include "ws_dri_fencemgr.h"
+#include "glthread.h"
+#include <xf86mm.h>
+#include <string.h>
+#include <unistd.h>
+
+/*
+ * Note: Locking order is
+ * _DriFenceObject::mutex
+ * _DriFenceMgr::mutex
+ */
+
+struct _DriFenceMgr {
+    /*
+     * Constant members. Need no mutex protection.
+     */
+    struct _DriFenceMgrCreateInfo info;
+    void *private;
+
+    /*
+     * These members are protected by this->mutex
+     */
+    _glthread_Mutex mutex;
+    int refCount;
+    drmMMListHead *heads;
+    int num_fences;
+};
+
+struct _DriFenceObject {
+
+    /*
+     * These members are constant and need no mutex protection.
+     */
+    struct _DriFenceMgr *mgr;
+    uint32_t fence_class;
+    uint32_t fence_type;
+
+    /*
+     * These members are protected by mgr->mutex.
+     */
+    drmMMListHead head;
+    int refCount;
+
+    /*
+     * These members are protected by this->mutex.
+     */
+    _glthread_Mutex mutex;
+    uint32_t signaled_type;
+    void *private;
+};
+
+uint32_t
+driFenceType(struct _DriFenceObject *fence)
+{
+  return fence->fence_type;
+}
+
+struct _DriFenceMgr *
+driFenceMgrCreate(const struct _DriFenceMgrCreateInfo *info)
+{
+  struct _DriFenceMgr *tmp;
+  uint32_t i;
+
+  tmp = calloc(1, sizeof(*tmp));
+  if (!tmp)
+      return NULL;
+
+  _glthread_INIT_MUTEX(tmp->mutex);
+  _glthread_LOCK_MUTEX(tmp->mutex);
+  tmp->refCount = 1;
+  tmp->info = *info;
+  tmp->num_fences = 0;
+  tmp->heads = calloc(tmp->info.num_classes, sizeof(*tmp->heads));
+  if (!tmp->heads)
+      goto out_err;
+
+  for (i=0; i<tmp->info.num_classes; ++i) {
+      DRMINITLISTHEAD(&tmp->heads[i]);
+  }
+  _glthread_UNLOCK_MUTEX(tmp->mutex);
+  return tmp;
+
+  out_err:
+  if (tmp)
+      free(tmp);
+  return NULL;
+}
+
+static void
+driFenceMgrUnrefUnlock(struct _DriFenceMgr **pMgr)
+{
+    struct _DriFenceMgr *mgr = *pMgr;
+
+    *pMgr = NULL;
+    if (--mgr->refCount == 0)
+	free(mgr);
+    else
+	_glthread_UNLOCK_MUTEX(mgr->mutex);
+}
+
+void
+driFenceMgrUnReference(struct _DriFenceMgr **pMgr)
+{
+    _glthread_LOCK_MUTEX((*pMgr)->mutex);
+    driFenceMgrUnrefUnlock(pMgr);
+}
+
+static void
+driFenceUnReferenceLocked(struct _DriFenceObject **pFence)
+{
+    struct _DriFenceObject *fence = *pFence;
+    struct _DriFenceMgr *mgr = fence->mgr;
+
+    *pFence = NULL;
+    if (--fence->refCount == 0) {
+	DRMLISTDELINIT(&fence->head);
+	if (fence->private)
+	    mgr->info.unreference(mgr, &fence->private);
+    --mgr->num_fences;
+	fence->mgr = NULL;
+	--mgr->refCount;
+	free(fence);
+
+    }
+}
+
+
+static void
+driSignalPreviousFencesLocked(struct _DriFenceMgr *mgr,
+			      drmMMListHead *list,
+			      uint32_t fence_class,
+			      uint32_t fence_type)
+{
+    struct _DriFenceObject *entry;
+    drmMMListHead *prev;
+
+    while(list != &mgr->heads[fence_class]) {
+	entry = DRMLISTENTRY(struct _DriFenceObject, list, head);
+
+	/*
+	 * Up refcount so that entry doesn't disappear from under us
+	 * when we unlock-relock mgr to get the correct locking order.
+	 */
+
+	++entry->refCount;
+	_glthread_UNLOCK_MUTEX(mgr->mutex);
+	_glthread_LOCK_MUTEX(entry->mutex);
+	_glthread_LOCK_MUTEX(mgr->mutex);
+
+	prev = list->prev;
+
+
+
+	if (list->prev == list) {
+
+		/*
+		 * Somebody else removed the entry from the list.
+		 */
+
+		_glthread_UNLOCK_MUTEX(entry->mutex);
+		driFenceUnReferenceLocked(&entry);
+		return;
+	}
+
+	entry->signaled_type |= (fence_type & entry->fence_type);
+	if (entry->signaled_type == entry->fence_type) {
+	    DRMLISTDELINIT(list);
+	    mgr->info.unreference(mgr, &entry->private);
+	}
+	_glthread_UNLOCK_MUTEX(entry->mutex);
+	driFenceUnReferenceLocked(&entry);
+	list = prev;
+    }
+}
+
+
+int
+driFenceFinish(struct _DriFenceObject *fence, uint32_t fence_type,
+	       int lazy_hint)
+{
+    struct _DriFenceMgr *mgr = fence->mgr;
+    int ret = 0;
+
+    _glthread_LOCK_MUTEX(fence->mutex);
+
+    if ((fence->signaled_type & fence_type) == fence_type)
+	goto out0;
+
+    ret = mgr->info.finish(mgr, fence->private, fence_type, lazy_hint);
+    if (ret)
+	goto out0;
+
+    _glthread_LOCK_MUTEX(mgr->mutex);
+    _glthread_UNLOCK_MUTEX(fence->mutex);
+
+    driSignalPreviousFencesLocked(mgr, &fence->head, fence->fence_class,
+				  fence_type);
+    _glthread_UNLOCK_MUTEX(mgr->mutex);
+    return 0;
+
+  out0:
+    _glthread_UNLOCK_MUTEX(fence->mutex);
+    return ret;
+}
+
+uint32_t driFenceSignaledTypeCached(struct _DriFenceObject *fence)
+{
+    uint32_t ret;
+
+    _glthread_LOCK_MUTEX(fence->mutex);
+    ret = fence->signaled_type;
+    _glthread_UNLOCK_MUTEX(fence->mutex);
+
+    return ret;
+}
+
+int
+driFenceSignaledType(struct _DriFenceObject *fence, uint32_t flush_type,
+		 uint32_t *signaled)
+{
+    int ret = 0;
+    struct _DriFenceMgr *mgr;
+
+    _glthread_LOCK_MUTEX(fence->mutex);
+    mgr = fence->mgr;
+    *signaled = fence->signaled_type;
+    if ((fence->signaled_type & flush_type) == flush_type)
+	goto out0;
+
+    ret = mgr->info.signaled(mgr, fence->private, flush_type, signaled);
+    if (ret) {
+	*signaled = fence->signaled_type;
+	goto out0;
+    }
+
+    if ((fence->signaled_type | *signaled) == fence->signaled_type)
+	goto out0;
+
+    _glthread_LOCK_MUTEX(mgr->mutex);
+    _glthread_UNLOCK_MUTEX(fence->mutex);
+
+    driSignalPreviousFencesLocked(mgr, &fence->head, fence->fence_class,
+				  *signaled);
+
+    _glthread_UNLOCK_MUTEX(mgr->mutex);
+    return 0;
+  out0:
+    _glthread_UNLOCK_MUTEX(fence->mutex);
+    return ret;
+}
+
+struct _DriFenceObject *
+driFenceReference(struct _DriFenceObject *fence)
+{
+    _glthread_LOCK_MUTEX(fence->mgr->mutex);
+    ++fence->refCount;
+    _glthread_UNLOCK_MUTEX(fence->mgr->mutex);
+    return fence;
+}
+
+void
+driFenceUnReference(struct _DriFenceObject **pFence)
+{
+    struct _DriFenceMgr *mgr; 
+
+    if (*pFence == NULL)
+	return;
+
+    mgr = (*pFence)->mgr;
+    _glthread_LOCK_MUTEX(mgr->mutex);
+    ++mgr->refCount;
+    driFenceUnReferenceLocked(pFence);
+    driFenceMgrUnrefUnlock(&mgr);
+}
+
+struct _DriFenceObject
+*driFenceCreate(struct _DriFenceMgr *mgr, uint32_t fence_class,
+		uint32_t fence_type, void *private, size_t private_size)
+{
+    struct _DriFenceObject *fence;
+    size_t fence_size = sizeof(*fence);
+
+    if (private_size)
+	fence_size = ((fence_size + 15) & ~15);
+
+    fence = calloc(1, fence_size + private_size);
+
+    if (!fence) {
+	int ret = mgr->info.finish(mgr, private, fence_type, 0);
+
+	if (ret)
+	    usleep(10000000);
+
+	return NULL;
+    }
+
+    _glthread_INIT_MUTEX(fence->mutex);
+    _glthread_LOCK_MUTEX(fence->mutex);
+    _glthread_LOCK_MUTEX(mgr->mutex);
+    fence->refCount = 1;
+    DRMLISTADDTAIL(&fence->head, &mgr->heads[fence_class]);
+    fence->mgr = mgr;
+    ++mgr->refCount;
+    ++mgr->num_fences;
+    _glthread_UNLOCK_MUTEX(mgr->mutex);
+    fence->fence_class = fence_class;
+    fence->fence_type = fence_type;
+    fence->signaled_type = 0;
+    fence->private = private;
+    if (private_size) {
+        fence->private = (void *)(((uint8_t *) fence) + fence_size);
+	memcpy(fence->private, private, private_size);
+    }
+
+    _glthread_UNLOCK_MUTEX(fence->mutex);
+    return fence;
+}
+
+
+static int
+tSignaled(struct _DriFenceMgr *mgr, void *private, uint32_t flush_type,
+	  uint32_t *signaled_type)
+{
+  long fd = (long) mgr->private;
+  int dummy;
+  drmFence *fence = (drmFence *) private;
+  int ret;
+
+  *signaled_type = 0;
+  ret = drmFenceSignaled((int) fd, fence, flush_type, &dummy);
+  if (ret)
+    return ret;
+
+  *signaled_type = fence->signaled;
+
+  return 0;
+}
+
+static int
+tFinish(struct _DriFenceMgr *mgr, void *private, uint32_t fence_type,
+	int lazy_hint)
+{
+  long fd = (long) mgr->private;
+  unsigned flags = lazy_hint ? DRM_FENCE_FLAG_WAIT_LAZY : 0;
+
+  return drmFenceWait((int)fd, flags, (drmFence *) private, fence_type);
+}
+
+static int
+tUnref(struct _DriFenceMgr *mgr, void **private)
+{
+  long fd = (long) mgr->private;
+  drmFence *fence = (drmFence *) *private;
+  *private = NULL;
+
+  return drmFenceUnreference(fd, fence);
+}
+
+struct _DriFenceMgr *driFenceMgrTTMInit(int fd)
+{
+  struct _DriFenceMgrCreateInfo info;
+  struct _DriFenceMgr *mgr;
+
+  info.flags = DRI_FENCE_CLASS_ORDERED;
+  info.num_classes = 4;
+  info.signaled = tSignaled;
+  info.finish = tFinish;
+  info.unreference = tUnref;
+
+  mgr = driFenceMgrCreate(&info);
+  if (mgr == NULL)
+    return NULL;
+
+  mgr->private = (void *) (long) fd;
+  return mgr;
+}
+
diff --git a/src/gallium/winsys/egl_drm/intel/ws_dri_fencemgr.h b/src/gallium/winsys/egl_drm/intel/ws_dri_fencemgr.h
new file mode 100644
index 0000000000..4ea58dfe18
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/ws_dri_fencemgr.h
@@ -0,0 +1,115 @@
+#ifndef DRI_FENCEMGR_H
+#define DRI_FENCEMGR_H
+
+#include <stdint.h>
+#include <stdlib.h>
+
+struct _DriFenceObject;
+struct _DriFenceMgr;
+
+/*
+ * Do a quick check to see if the fence manager has registered the fence
+ * object as signaled. Note that this function may return a false negative
+ * answer.
+ */
+extern uint32_t driFenceSignaledTypeCached(struct _DriFenceObject *fence);
+
+/*
+ * Check if the fence object is signaled. This function can be substantially
+ * more expensive to call than the above function, but will not return a false
+ * negative answer. The argument "flush_type" sets the types that the
+ * underlying mechanism must make sure will eventually signal.
+ */
+extern int driFenceSignaledType(struct _DriFenceObject *fence,
+				uint32_t flush_type, uint32_t *signaled);
+
+/*
+ * Convenience functions.
+ */
+
+static inline int driFenceSignaled(struct _DriFenceObject *fence,
+				   uint32_t flush_type)
+{
+    uint32_t signaled_types;
+    int ret = driFenceSignaledType(fence, flush_type, &signaled_types);
+    if (ret)
+	return 0;
+    return ((signaled_types & flush_type) == flush_type);
+}
+
+static inline int driFenceSignaledCached(struct _DriFenceObject *fence,
+					 uint32_t flush_type)
+{
+    uint32_t signaled_types =
+	driFenceSignaledTypeCached(fence);
+
+    return ((signaled_types & flush_type) == flush_type);
+}
+
+/*
+ * Reference a fence object.
+ */
+extern struct _DriFenceObject *driFenceReference(struct _DriFenceObject *fence);
+
+/*
+ * Unreference a fence object. The fence object pointer will be reset to NULL.
+ */
+
+extern void driFenceUnReference(struct _DriFenceObject **pFence);
+
+
+/*
+ * Wait for a fence to signal the indicated fence_type.
+ * If "lazy_hint" is true, it indicates that the wait may sleep to avoid
+ * busy-wait polling.
+ */
+extern int driFenceFinish(struct _DriFenceObject *fence, uint32_t fence_type,
+			  int lazy_hint);
+
+/*
+ * Create a DriFenceObject for manager "mgr".
+ *
+ * "private" is a pointer that should be used for the callbacks in
+ * struct _DriFenceMgrCreateInfo.
+ *
+ * if private_size is nonzero, then the info stored at *private, with size
+ * private size will be copied and the fence manager will instead use a
+ * pointer to the copied data for the callbacks in
+ * struct _DriFenceMgrCreateInfo. In that case, the object pointed to by
+ * "private" may be destroyed after the call to driFenceCreate.
+ */
+extern struct _DriFenceObject *driFenceCreate(struct _DriFenceMgr *mgr,
+					      uint32_t fence_class,
+					      uint32_t fence_type,
+					      void *private,
+					      size_t private_size);
+
+extern uint32_t driFenceType(struct _DriFenceObject *fence);
+
+/*
+ * Fence creations are ordered. If a fence signals a fence_type,
+ * it is safe to assume that all fences of the same class that was
+ * created before that fence has signaled the same type.
+ */
+
+#define DRI_FENCE_CLASS_ORDERED (1 << 0)
+
+struct _DriFenceMgrCreateInfo {
+    uint32_t flags;
+    uint32_t num_classes;
+    int (*signaled) (struct _DriFenceMgr *mgr, void *private, uint32_t flush_type,
+		     uint32_t *signaled_type);
+    int (*finish) (struct _DriFenceMgr *mgr, void *private, uint32_t fence_type, int lazy_hint);
+    int (*unreference) (struct _DriFenceMgr *mgr, void **private);
+};
+
+extern struct _DriFenceMgr *
+driFenceMgrCreate(const struct _DriFenceMgrCreateInfo *info);
+
+void
+driFenceMgrUnReference(struct _DriFenceMgr **pMgr);
+
+extern struct _DriFenceMgr *
+driFenceMgrTTMInit(int fd);
+
+#endif
diff --git a/src/gallium/winsys/egl_drm/intel/ws_dri_mallocpool.c b/src/gallium/winsys/egl_drm/intel/ws_dri_mallocpool.c
new file mode 100644
index 0000000000..bf97d7e440
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/ws_dri_mallocpool.c
@@ -0,0 +1,162 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include <xf86drm.h>
+#include <stdlib.h>
+#include <errno.h>
+#include "imports.h"
+#include "glthread.h"
+#include "ws_dri_bufpool.h"
+#include "ws_dri_bufmgr.h"
+#include "intel_screen.h"
+
+static void *
+pool_create(struct _DriBufferPool *pool,
+            unsigned long size, uint64_t flags, unsigned hint,
+            unsigned alignment)
+{
+    unsigned long *private = malloc(size + 2*sizeof(unsigned long));
+    if ((flags & DRM_BO_MASK_MEM) != DRM_BO_FLAG_MEM_LOCAL)
+      abort();
+
+    *private = size;
+    return (void *)private;
+}
+
+
+static int
+pool_destroy(struct _DriBufferPool *pool, void *private)
+{
+    free(private);
+    return 0;
+}
+
+static int
+pool_waitIdle(struct _DriBufferPool *pool, void *private, 
+	      _glthread_Mutex *mutex, int lazy)
+{
+    return 0;
+}
+
+static int
+pool_map(struct _DriBufferPool *pool, void *private, unsigned flags,
+         int hint, _glthread_Mutex *mutex, void **virtual)
+{
+    *virtual = (void *)((unsigned long *)private + 2);
+    return 0;
+}
+
+static int
+pool_unmap(struct _DriBufferPool *pool, void *private)
+{
+    return 0;
+}
+
+static unsigned long
+pool_offset(struct _DriBufferPool *pool, void *private)
+{
+    /*
+     * BUG
+     */
+    abort();
+    return 0UL;
+}
+
+static unsigned long
+pool_poolOffset(struct _DriBufferPool *pool, void *private)
+{
+    /*
+     * BUG
+     */
+    abort();
+}
+
+static uint64_t
+pool_flags(struct _DriBufferPool *pool, void *private)
+{
+    return DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_CACHED;
+}
+
+static unsigned long
+pool_size(struct _DriBufferPool *pool, void *private)
+{
+    return *(unsigned long *) private;
+}
+
+
+static int
+pool_fence(struct _DriBufferPool *pool, void *private,
+           struct _DriFenceObject *fence)
+{
+    abort();
+    return 0UL;
+}
+
+static drmBO *
+pool_kernel(struct _DriBufferPool *pool, void *private)
+{
+    abort();
+    return NULL;
+}
+
+static void
+pool_takedown(struct _DriBufferPool *pool)
+{
+    free(pool);
+}
+
+
+struct _DriBufferPool *
+driMallocPoolInit(void)
+{
+   struct _DriBufferPool *pool;
+
+   pool = (struct _DriBufferPool *) malloc(sizeof(*pool));
+   if (!pool)
+       return NULL;
+
+   pool->data = NULL;
+   pool->fd = -1;
+   pool->map = &pool_map;
+   pool->unmap = &pool_unmap;
+   pool->destroy = &pool_destroy;
+   pool->offset = &pool_offset;
+   pool->poolOffset = &pool_poolOffset;
+   pool->flags = &pool_flags;
+   pool->size = &pool_size;
+   pool->create = &pool_create;
+   pool->fence = &pool_fence;
+   pool->kernel = &pool_kernel;
+   pool->validate = NULL;
+   pool->waitIdle = &pool_waitIdle;
+   pool->takeDown = &pool_takedown;
+   return pool;
+}
diff --git a/src/gallium/winsys/egl_drm/intel/ws_dri_slabpool.c b/src/gallium/winsys/egl_drm/intel/ws_dri_slabpool.c
new file mode 100644
index 0000000000..e69519a01f
--- /dev/null
+++ b/src/gallium/winsys/egl_drm/intel/ws_dri_slabpool.c
@@ -0,0 +1,970 @@
+/**************************************************************************
+ *
+ * Copyright 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
+ */
+
+#include <stdint.h>
+#include <sys/time.h>
+#include <errno.h>
+#include <unistd.h>
+#include <assert.h>
+#include "ws_dri_bufpool.h"
+#include "ws_dri_fencemgr.h"
+#include "ws_dri_bufmgr.h"
+#include "glthread.h"
+
+#define DRI_SLABPOOL_ALLOC_RETRIES 100
+
+struct _DriSlab;
+
+struct _DriSlabBuffer {
+    int isSlabBuffer;
+    drmBO *bo;
+    struct _DriFenceObject *fence;
+    struct _DriSlab *parent;
+    drmMMListHead head;
+    uint32_t mapCount;
+    uint32_t start;
+    uint32_t fenceType;
+    int unFenced;
+    _glthread_Cond event;
+};
+
+struct _DriKernelBO {
+    int fd;
+    drmBO bo;
+    drmMMListHead timeoutHead;
+    drmMMListHead head;
+    struct timeval timeFreed;
+    uint32_t pageAlignment;
+    void *virtual;
+};
+
+struct _DriSlab{
+    drmMMListHead head;
+    drmMMListHead freeBuffers;
+    uint32_t numBuffers;
+    uint32_t numFree;
+    struct _DriSlabBuffer *buffers;
+    struct _DriSlabSizeHeader *header;
+    struct _DriKernelBO *kbo;
+};
+
+
+struct _DriSlabSizeHeader {
+    drmMMListHead slabs;
+    drmMMListHead freeSlabs;
+    drmMMListHead delayedBuffers;
+    uint32_t numDelayed;
+    struct _DriSlabPool *slabPool;
+    uint32_t bufSize;
+    _glthread_Mutex mutex;
+};
+
+struct _DriFreeSlabManager {
+    struct timeval slabTimeout;
+    struct timeval checkInterval;
+    struct timeval nextCheck;
+    drmMMListHead timeoutList;
+    drmMMListHead unCached;
+    drmMMListHead cached;
+    _glthread_Mutex mutex;
+};
+
+
+struct _DriSlabPool {
+
+    /*
+     * The data of this structure remains constant after
+     * initialization and thus needs no mutex protection.
+     */
+
+    struct _DriFreeSlabManager *fMan;
+    uint64_t proposedFlags;
+    uint64_t validMask;
+    uint32_t *bucketSizes;
+    uint32_t numBuckets;
+    uint32_t pageSize;
+    int fd;
+    int pageAlignment;
+    int maxSlabSize;
+    int desiredNumBuffers;
+    struct _DriSlabSizeHeader *headers;
+};
+
+/*
+ * FIXME: Perhaps arrange timeout slabs in size buckets for fast
+ * retreival??
+ */
+
+
+static inline int
+driTimeAfterEq(struct timeval *arg1, struct timeval *arg2)
+{
+    return ((arg1->tv_sec > arg2->tv_sec) ||
+	    ((arg1->tv_sec == arg2->tv_sec) &&
+	     (arg1->tv_usec > arg2->tv_usec)));
+}
+
+static inline void
+driTimeAdd(struct timeval *arg, struct timeval *add)
+{
+    unsigned int sec;
+
+    arg->tv_sec += add->tv_sec;
+    arg->tv_usec += add->tv_usec;
+    sec = arg->tv_usec / 1000000;
+    arg->tv_sec += sec;
+    arg->tv_usec -= sec*1000000;
+}
+
+static void
+driFreeKernelBO(struct _DriKernelBO *kbo)
+{
+    if (!kbo)
+	return;
+
+    (void) drmBOUnreference(kbo->fd, &kbo->bo);
+    free(kbo);
+}
+
+
+static void
+driFreeTimeoutKBOsLocked(struct _DriFreeSlabManager *fMan,
+			 struct timeval *time)
+{
+    drmMMListHead *list, *next;
+    struct _DriKernelBO *kbo;
+
+    if (!driTimeAfterEq(time, &fMan->nextCheck))
+	return;
+
+    for (list = fMan->timeoutList.next, next = list->next;
+	 list != &fMan->timeoutList;
+	 list = next, next = list->next) {
+
+	kbo = DRMLISTENTRY(struct _DriKernelBO, list, timeoutHead);
+
+	if (!driTimeAfterEq(time, &kbo->timeFreed))
+	    break;
+
+	DRMLISTDELINIT(&kbo->timeoutHead);
+	DRMLISTDELINIT(&kbo->head);
+	driFreeKernelBO(kbo);
+    }
+
+    fMan->nextCheck = *time;
+    driTimeAdd(&fMan->nextCheck, &fMan->checkInterval);
+}
+
+
+/*
+ * Add a _DriKernelBO to the free slab manager.
+ * This means that it is available for reuse, but if it's not
+ * reused in a while, it will be freed.
+ */
+
+static void
+driSetKernelBOFree(struct _DriFreeSlabManager *fMan,
+		   struct _DriKernelBO *kbo)
+{
+    struct timeval time;
+
+    _glthread_LOCK_MUTEX(fMan->mutex);
+    gettimeofday(&time, NULL);
+    driTimeAdd(&time, &fMan->slabTimeout);
+
+    kbo->timeFreed = time;
+
+    if (kbo->bo.flags & DRM_BO_FLAG_CACHED)
+	DRMLISTADD(&kbo->head, &fMan->cached);
+    else
+	DRMLISTADD(&kbo->head, &fMan->unCached);
+
+    DRMLISTADDTAIL(&kbo->timeoutHead, &fMan->timeoutList);
+    driFreeTimeoutKBOsLocked(fMan, &time);
+
+    _glthread_UNLOCK_MUTEX(fMan->mutex);
+}
+
+/*
+ * Get a _DriKernelBO for us to use as storage for a slab.
+ *
+ */
+
+static struct _DriKernelBO *
+driAllocKernelBO(struct _DriSlabSizeHeader *header)
+
+{
+    struct _DriSlabPool *slabPool = header->slabPool;
+    struct _DriFreeSlabManager *fMan = slabPool->fMan;
+    drmMMListHead *list, *next, *head;
+    uint32_t size = header->bufSize * slabPool->desiredNumBuffers;
+    struct _DriKernelBO *kbo;
+    struct _DriKernelBO *kboTmp;
+    int ret;
+
+    /*
+     * FIXME: We should perhaps allow some variation in slabsize in order
+     * to efficiently reuse slabs.
+     */
+
+    size = (size <= slabPool->maxSlabSize) ? size : slabPool->maxSlabSize;
+    size = (size + slabPool->pageSize - 1) & ~(slabPool->pageSize - 1);
+    _glthread_LOCK_MUTEX(fMan->mutex);
+
+    kbo = NULL;
+
+  retry:
+    head = (slabPool->proposedFlags & DRM_BO_FLAG_CACHED) ?
+	&fMan->cached : &fMan->unCached;
+
+    for (list = head->next, next = list->next;
+	 list != head;
+	 list = next, next = list->next) {
+
+	kboTmp = DRMLISTENTRY(struct _DriKernelBO, list, head);
+
+	if ((kboTmp->bo.size == size) &&
+	    (slabPool->pageAlignment == 0 ||
+	     (kboTmp->pageAlignment % slabPool->pageAlignment) == 0)) {
+
+	    if (!kbo)
+		kbo = kboTmp;
+
+	    if ((kbo->bo.proposedFlags ^ slabPool->proposedFlags) == 0)
+		break;
+
+	}
+    }
+
+    if (kbo) {
+	DRMLISTDELINIT(&kbo->head);
+	DRMLISTDELINIT(&kbo->timeoutHead);
+    }
+
+    _glthread_UNLOCK_MUTEX(fMan->mutex);
+
+    if (kbo) {
+        uint64_t new_mask = kbo->bo.proposedFlags ^ slabPool->proposedFlags;
+
+	ret = 0;
+	if (new_mask) {
+	    ret = drmBOSetStatus(kbo->fd, &kbo->bo, slabPool->proposedFlags,
+				 new_mask, DRM_BO_HINT_DONT_FENCE, 0, 0);
+	}
+	if (ret == 0)
+	    return kbo;
+
+	driFreeKernelBO(kbo);
+	kbo = NULL;
+	goto retry;
+    }
+
+    kbo = calloc(1, sizeof(struct _DriKernelBO));
+    if (!kbo)
+	return NULL;
+
+    kbo->fd = slabPool->fd;
+    DRMINITLISTHEAD(&kbo->head);
+    DRMINITLISTHEAD(&kbo->timeoutHead);
+    ret = drmBOCreate(kbo->fd, size, slabPool->pageAlignment, NULL,
+		      slabPool->proposedFlags,
+		      DRM_BO_HINT_DONT_FENCE, &kbo->bo);
+    if (ret)
+	goto out_err0;
+
+    ret = drmBOMap(kbo->fd, &kbo->bo,
+		   DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE,
+		   0, &kbo->virtual);
+
+    if (ret)
+	goto out_err1;
+
+    ret = drmBOUnmap(kbo->fd, &kbo->bo);
+    if (ret)
+	goto out_err1;
+
+    return kbo;
+
+  out_err1:
+    drmBOUnreference(kbo->fd, &kbo->bo);
+  out_err0:
+    free(kbo);
+    return NULL;
+}
+
+
+static int
+driAllocSlab(struct _DriSlabSizeHeader *header)
+{
+    struct _DriSlab *slab;
+    struct _DriSlabBuffer *buf;
+    uint32_t numBuffers;
+    int ret;
+    int i;
+
+    slab = calloc(1, sizeof(*slab));
+    if (!slab)
+	return -ENOMEM;
+
+    slab->kbo = driAllocKernelBO(header);
+    if (!slab->kbo) {
+	ret = -ENOMEM;
+	goto out_err0;
+    }
+
+    numBuffers = slab->kbo->bo.size / header->bufSize;
+
+    slab->buffers = calloc(numBuffers, sizeof(*slab->buffers));
+    if (!slab->buffers) {
+	ret = -ENOMEM;
+	goto out_err1;
+    }
+
+    DRMINITLISTHEAD(&slab->head);
+    DRMINITLISTHEAD(&slab->freeBuffers);
+    slab->numBuffers = numBuffers;
+    slab->numFree = 0;
+    slab->header = header;
+
+    buf = slab->buffers;
+    for (i=0; i < numBuffers; ++i) {
+	buf->parent = slab;
+	buf->start = i* header->bufSize;
+	buf->mapCount = 0;
+	buf->isSlabBuffer = 1;
+	_glthread_INIT_COND(buf->event);
+	DRMLISTADDTAIL(&buf->head, &slab->freeBuffers);
+	slab->numFree++;
+	buf++;
+    }
+
+    DRMLISTADDTAIL(&slab->head, &header->slabs);
+
+    return 0;
+
+  out_err1:
+    driSetKernelBOFree(header->slabPool->fMan, slab->kbo);
+    free(slab->buffers);
+  out_err0:
+    free(slab);
+    return ret;
+}
+
+/*
+ * Delete a buffer from the slab header delayed list and put
+ * it on the slab free list.
+ */
+
+static void
+driSlabFreeBufferLocked(struct _DriSlabBuffer *buf)
+{
+    struct _DriSlab *slab = buf->parent;
+    struct _DriSlabSizeHeader *header = slab->header;
+    drmMMListHead *list = &buf->head;
+
+    DRMLISTDEL(list);
+    DRMLISTADDTAIL(list, &slab->freeBuffers);
+    slab->numFree++;
+
+    if (slab->head.next == &slab->head)
+	DRMLISTADDTAIL(&slab->head, &header->slabs);
+
+    if (slab->numFree == slab->numBuffers) {
+	list = &slab->head;
+	DRMLISTDEL(list);
+	DRMLISTADDTAIL(list, &header->freeSlabs);
+    }
+
+    if (header->slabs.next == &header->slabs ||
+	slab->numFree != slab->numBuffers) {
+
+	drmMMListHead *next;
+	struct _DriFreeSlabManager *fMan = header->slabPool->fMan;
+
+	for (list = header->freeSlabs.next, next = list->next;
+	     list != &header->freeSlabs;
+	     list = next, next = list->next) {
+
+	    slab = DRMLISTENTRY(struct _DriSlab, list, head);
+
+	    DRMLISTDELINIT(list);
+	    driSetKernelBOFree(fMan, slab->kbo);
+	    free(slab->buffers);
+	    free(slab);
+	}
+    }
+}
+
+static void
+driSlabCheckFreeLocked(struct _DriSlabSizeHeader *header, int wait)
+{
+  drmMMListHead *list, *prev, *first;
+   struct _DriSlabBuffer *buf;
+   struct _DriSlab *slab;
+   int firstWasSignaled = 1;
+   int signaled;
+   int i;
+   int ret;
+
+   /*
+    * Rerun the freeing test if the youngest tested buffer
+    * was signaled, since there might be more idle buffers
+    * in the delay list.
+    */
+
+   while (firstWasSignaled) {
+       firstWasSignaled = 0;
+       signaled = 0;
+       first = header->delayedBuffers.next;
+
+       /* Only examine the oldest 1/3 of delayed buffers:
+	*/
+       if (header->numDelayed > 3) {
+	   for (i = 0; i < header->numDelayed; i += 3) {
+	       first = first->next;
+	   }
+       }
+
+       for (list = first, prev = list->prev;
+	    list != &header->delayedBuffers;
+	    list = prev, prev = list->prev) {
+	   buf = DRMLISTENTRY(struct _DriSlabBuffer, list, head);
+	   slab = buf->parent;
+
+	   if (!signaled) {
+	       if (wait) {
+		   ret = driFenceFinish(buf->fence, buf->fenceType, 0);
+		   if (ret)
+		       break;
+		   signaled = 1;
+		   wait = 0;
+	       } else {
+		   signaled = driFenceSignaled(buf->fence, buf->fenceType);
+	       }
+	       if (signaled) {
+		   if (list == first)
+		       firstWasSignaled = 1;
+		   driFenceUnReference(&buf->fence);
+		   header->numDelayed--;
+		   driSlabFreeBufferLocked(buf);
+	       }
+	   } else if (driFenceSignaledCached(buf->fence, buf->fenceType)) {
+	       driFenceUnReference(&buf->fence);
+	       header->numDelayed--;
+	       driSlabFreeBufferLocked(buf);
+	   }
+       }
+   }
+}
+
+
+static struct _DriSlabBuffer *
+driSlabAllocBuffer(struct _DriSlabSizeHeader *header)
+{
+    static struct _DriSlabBuffer *buf;
+    struct _DriSlab *slab;
+    drmMMListHead *list;
+    int count = DRI_SLABPOOL_ALLOC_RETRIES;
+
+    _glthread_LOCK_MUTEX(header->mutex);
+    while(header->slabs.next == &header->slabs && count > 0) {
+        driSlabCheckFreeLocked(header, 0);
+	if (header->slabs.next != &header->slabs)
+	  break;
+
+	_glthread_UNLOCK_MUTEX(header->mutex);
+	if (count != DRI_SLABPOOL_ALLOC_RETRIES)
+	    usleep(1);
+	_glthread_LOCK_MUTEX(header->mutex);
+	(void) driAllocSlab(header);
+	count--;
+    }
+
+    list = header->slabs.next;
+    if (list == &header->slabs) {
+	_glthread_UNLOCK_MUTEX(header->mutex);
+	return NULL;
+    }
+    slab = DRMLISTENTRY(struct _DriSlab, list, head);
+    if (--slab->numFree == 0)
+	DRMLISTDELINIT(list);
+
+    list = slab->freeBuffers.next;
+    DRMLISTDELINIT(list);
+
+    _glthread_UNLOCK_MUTEX(header->mutex);
+    buf = DRMLISTENTRY(struct _DriSlabBuffer, list, head);
+    return buf;
+}
+
+static void *
+pool_create(struct _DriBufferPool *driPool, unsigned long size,
+	    uint64_t flags, unsigned hint, unsigned alignment)
+{
+    struct _DriSlabPool *pool = (struct _DriSlabPool *) driPool->data;
+    struct _DriSlabSizeHeader *header;
+    struct _DriSlabBuffer *buf;
+    void *dummy;
+    int i;
+    int ret;
+
+    /*
+     * FIXME: Check for compatibility.
+     */
+    header = pool->headers;
+    for (i=0; i<pool->numBuckets; ++i) {
+      if (header->bufSize >= size)
+	break;
+      header++;
+    }
+
+    if (i < pool->numBuckets)
+	return driSlabAllocBuffer(header);
+
+
+    /*
+     * Fall back to allocate a buffer object directly from DRM.
+     * and wrap it in a driBO structure.
+     */
+
+
+    buf = calloc(1, sizeof(*buf));
+
+    if (!buf)
+	return NULL;
+
+    buf->bo = calloc(1, sizeof(*buf->bo));
+    if (!buf->bo)
+	goto out_err0;
+
+    if (alignment) {
+	if ((alignment < pool->pageSize) && (pool->pageSize % alignment))
+	    goto out_err1;
+	if ((alignment > pool->pageSize) && (alignment % pool->pageSize))
+	    goto out_err1;
+    }
+
+    ret = drmBOCreate(pool->fd, size, alignment / pool->pageSize, NULL,
+			flags, hint, buf->bo);
+    if (ret)
+	goto out_err1;
+
+    ret  = drmBOMap(pool->fd, buf->bo, DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE,
+		    0, &dummy);
+    if (ret)
+	goto out_err2;
+
+    ret = drmBOUnmap(pool->fd, buf->bo);
+    if (ret)
+	goto out_err2;
+
+    return buf;
+  out_err2:
+    drmBOUnreference(pool->fd, buf->bo);
+  out_err1:
+    free(buf->bo);
+  out_err0:
+    free(buf);
+    return NULL;
+}
+
+static int
+pool_destroy(struct _DriBufferPool *driPool, void *private)
+{
+    struct _DriSlabBuffer *buf =
+	(struct _DriSlabBuffer *) private;
+    struct _DriSlab *slab;
+    struct _DriSlabSizeHeader *header;
+
+    if (!buf->isSlabBuffer) {
+	struct _DriSlabPool *pool = (struct _DriSlabPool *) driPool->data;
+	int ret;
+
+	ret = drmBOUnreference(pool->fd, buf->bo);
+	free(buf->bo);
+	free(buf);
+	return ret;
+    }
+
+    slab = buf->parent;
+    header = slab->header;
+
+    _glthread_LOCK_MUTEX(header->mutex);
+    buf->unFenced = 0;
+    buf->mapCount = 0;
+
+    if (buf->fence && !driFenceSignaledCached(buf->fence, buf->fenceType)) {
+	DRMLISTADDTAIL(&buf->head, &header->delayedBuffers);
+	header->numDelayed++;
+    } else {
+	if (buf->fence)
+	    driFenceUnReference(&buf->fence);
+	driSlabFreeBufferLocked(buf);
+    }
+
+    _glthread_UNLOCK_MUTEX(header->mutex);
+    return 0;
+}
+
+static int
+pool_waitIdle(struct _DriBufferPool *driPool, void *private, 
+	      _glthread_Mutex *mutex, int lazy)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+
+   while(buf->unFenced)
+       _glthread_COND_WAIT(buf->event, *mutex);
+
+   if (!buf->fence)
+     return 0;
+
+   driFenceFinish(buf->fence, buf->fenceType, lazy);
+   driFenceUnReference(&buf->fence);
+
+   return 0;
+}
+
+static int
+pool_map(struct _DriBufferPool *pool, void *private, unsigned flags,
+         int hint, _glthread_Mutex *mutex, void **virtual)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+   int busy;
+
+   if (buf->isSlabBuffer)
+       busy = buf->unFenced || (buf->fence && !driFenceSignaledCached(buf->fence, buf->fenceType));
+   else
+       busy = buf->fence && !driFenceSignaled(buf->fence, buf->fenceType);
+
+
+   if (busy) {
+       if (hint & DRM_BO_HINT_DONT_BLOCK)
+	   return -EBUSY;
+       else {
+	   (void) pool_waitIdle(pool, private, mutex, 0);
+       }
+   }
+
+   ++buf->mapCount;
+   *virtual = (buf->isSlabBuffer) ?
+       (void *) ((uint8_t *) buf->parent->kbo->virtual + buf->start) :
+       (void *) buf->bo->virtual;
+
+   return 0;
+}
+
+static int
+pool_unmap(struct _DriBufferPool *pool, void *private)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+
+   --buf->mapCount;
+   if (buf->mapCount == 0 && buf->isSlabBuffer) 
+       _glthread_COND_BROADCAST(buf->event);
+
+   return 0;
+}
+
+static unsigned long
+pool_offset(struct _DriBufferPool *pool, void *private)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+   struct _DriSlab *slab;
+   struct _DriSlabSizeHeader *header;
+
+   if (!buf->isSlabBuffer) {
+       assert(buf->bo->proposedFlags & DRM_BO_FLAG_NO_MOVE);
+       return buf->bo->offset;
+   }
+
+   slab = buf->parent;
+   header = slab->header;
+
+   (void) header;
+   assert(header->slabPool->proposedFlags & DRM_BO_FLAG_NO_MOVE);
+   return slab->kbo->bo.offset + buf->start;
+}
+
+static unsigned long
+pool_poolOffset(struct _DriBufferPool *pool, void *private)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+
+   return buf->start;
+}
+
+static uint64_t
+pool_flags(struct _DriBufferPool *pool, void *private)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+
+   if (!buf->isSlabBuffer)
+       return buf->bo->flags;
+
+   return buf->parent->kbo->bo.flags;
+}
+
+static unsigned long
+pool_size(struct _DriBufferPool *pool, void *private)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+   if (!buf->isSlabBuffer)
+       return buf->bo->size;
+
+   return buf->parent->header->bufSize;
+}
+
+static int
+pool_fence(struct _DriBufferPool *pool, void *private,
+           struct _DriFenceObject *fence)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+   drmBO *bo;
+
+   if (buf->fence)
+      driFenceUnReference(&buf->fence);
+
+   buf->fence = driFenceReference(fence);
+   bo = (buf->isSlabBuffer) ?
+     &buf->parent->kbo->bo:
+     buf->bo;
+   buf->fenceType = bo->fenceFlags;
+
+   buf->unFenced = 0;
+   _glthread_COND_BROADCAST(buf->event);
+
+   return 0;
+}
+
+static drmBO *
+pool_kernel(struct _DriBufferPool *pool, void *private)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+
+   if (!buf)
+      return NULL;
+
+   return (buf->isSlabBuffer) ? &buf->parent->kbo->bo : buf->bo;
+}
+
+static int
+pool_validate(struct _DriBufferPool *pool, void *private, 
+	      _glthread_Mutex *mutex)
+{
+   struct _DriSlabBuffer *buf = (struct _DriSlabBuffer *) private;
+
+   if (!buf->isSlabBuffer) 
+       return 0;
+   
+   while(buf->mapCount != 0)
+       _glthread_COND_WAIT(buf->event, *mutex);
+
+   buf->unFenced = 1;
+   return 0;
+}
+
+
+struct _DriFreeSlabManager *
+driInitFreeSlabManager(uint32_t checkIntervalMsec, uint32_t slabTimeoutMsec)
+{
+    struct _DriFreeSlabManager *tmp;
+
+    tmp = calloc(1, sizeof(*tmp));
+    if (!tmp)
+	return NULL;
+
+    _glthread_INIT_MUTEX(tmp->mutex);
+    _glthread_LOCK_MUTEX(tmp->mutex);
+    tmp->slabTimeout.tv_usec = slabTimeoutMsec*1000;
+    tmp->slabTimeout.tv_sec = tmp->slabTimeout.tv_usec / 1000000;
+    tmp->slabTimeout.tv_usec -=  tmp->slabTimeout.tv_sec*1000000;
+
+    tmp->checkInterval.tv_usec = checkIntervalMsec*1000;
+    tmp->checkInterval.tv_sec = tmp->checkInterval.tv_usec / 1000000;
+    tmp->checkInterval.tv_usec -=  tmp->checkInterval.tv_sec*1000000;
+
+    gettimeofday(&tmp->nextCheck, NULL);
+    driTimeAdd(&tmp->nextCheck, &tmp->checkInterval);
+    DRMINITLISTHEAD(&tmp->timeoutList);
+    DRMINITLISTHEAD(&tmp->unCached);
+    DRMINITLISTHEAD(&tmp->cached);
+    _glthread_UNLOCK_MUTEX(tmp->mutex);
+
+    return tmp;
+}
+
+void
+driFinishFreeSlabManager(struct _DriFreeSlabManager *fMan)
+{
+    struct timeval time;
+
+    time = fMan->nextCheck;
+    driTimeAdd(&time, &fMan->checkInterval);
+
+    _glthread_LOCK_MUTEX(fMan->mutex);
+    driFreeTimeoutKBOsLocked(fMan, &time);
+    _glthread_UNLOCK_MUTEX(fMan->mutex);
+
+    assert(fMan->timeoutList.next == &fMan->timeoutList);
+    assert(fMan->unCached.next == &fMan->unCached);
+    assert(fMan->cached.next == &fMan->cached);
+
+    free(fMan);
+}
+
+static void
+driInitSizeHeader(struct _DriSlabPool *pool, uint32_t size,
+		  struct _DriSlabSizeHeader *header)
+{
+    _glthread_INIT_MUTEX(header->mutex);
+    _glthread_LOCK_MUTEX(header->mutex);
+
+    DRMINITLISTHEAD(&header->slabs);
+    DRMINITLISTHEAD(&header->freeSlabs);
+    DRMINITLISTHEAD(&header->delayedBuffers);
+
+    header->numDelayed = 0;
+    header->slabPool = pool;
+    header->bufSize = size;
+
+    _glthread_UNLOCK_MUTEX(header->mutex);
+}
+
+static void
+driFinishSizeHeader(struct _DriSlabSizeHeader *header)
+{
+    drmMMListHead *list, *next;
+    struct _DriSlabBuffer *buf;
+
+    _glthread_LOCK_MUTEX(header->mutex);
+    for (list = header->delayedBuffers.next, next = list->next;
+	 list != &header->delayedBuffers;
+	 list = next, next = list->next) {
+
+	buf = DRMLISTENTRY(struct _DriSlabBuffer, list , head);
+	if (buf->fence) {
+	    (void) driFenceFinish(buf->fence, buf->fenceType, 0);
+	    driFenceUnReference(&buf->fence);
+	}
+	header->numDelayed--;
+	driSlabFreeBufferLocked(buf);
+    }
+    _glthread_UNLOCK_MUTEX(header->mutex);
+}
+
+static void
+pool_takedown(struct _DriBufferPool *driPool)
+{
+   struct _DriSlabPool *pool = driPool->data;
+   int i;
+
+   for (i=0; i<pool->numBuckets; ++i) {
+     driFinishSizeHeader(&pool->headers[i]);
+   }
+
+   free(pool->headers);
+   free(pool->bucketSizes);
+   free(pool);
+   free(driPool);
+}
+
+struct _DriBufferPool *
+driSlabPoolInit(int fd, uint64_t flags,
+		uint64_t validMask,
+		uint32_t smallestSize,
+		uint32_t numSizes,
+		uint32_t desiredNumBuffers,
+		uint32_t maxSlabSize,
+		uint32_t pageAlignment,
+		struct _DriFreeSlabManager *fMan)
+{
+    struct _DriBufferPool *driPool;
+    struct _DriSlabPool *pool;
+    uint32_t i;
+
+    driPool = calloc(1, sizeof(*driPool));
+    if (!driPool)
+	return NULL;
+
+    pool = calloc(1, sizeof(*pool));
+    if (!pool)
+	goto out_err0;
+
+    pool->bucketSizes = calloc(numSizes, sizeof(*pool->bucketSizes));
+    if (!pool->bucketSizes)
+	goto out_err1;
+
+    pool->headers = calloc(numSizes, sizeof(*pool->headers));
+    if (!pool->headers)
+	goto out_err2;
+
+    pool->fMan = fMan;
+    pool->proposedFlags = flags;
+    pool->validMask = validMask;
+    pool->numBuckets = numSizes;
+    pool->pageSize = getpagesize();
+    pool->fd = fd;
+    pool->pageAlignment = pageAlignment;
+    pool->maxSlabSize = maxSlabSize;
+    pool->desiredNumBuffers = desiredNumBuffers;
+
+    for (i=0; i<pool->numBuckets; ++i) {
+	pool->bucketSizes[i] = (smallestSize << i);
+	driInitSizeHeader(pool, pool->bucketSizes[i],
+			  &pool->headers[i]);
+    }
+
+    driPool->data = (void *) pool;
+    driPool->map = &pool_map;
+    driPool->unmap = &pool_unmap;
+    driPool->destroy = &pool_destroy;
+    driPool->offset = &pool_offset;
+    driPool->poolOffset = &pool_poolOffset;
+    driPool->flags = &pool_flags;
+    driPool->size = &pool_size;
+    driPool->create = &pool_create;
+    driPool->fence = &pool_fence;
+    driPool->kernel = &pool_kernel;
+    driPool->validate = &pool_validate;
+    driPool->waitIdle = &pool_waitIdle;
+    driPool->takeDown = &pool_takedown;
+
+    return driPool;
+
+  out_err2:
+    free(pool->bucketSizes);
+  out_err1:
+    free(pool);
+  out_err0:
+    free(driPool);
+
+    return NULL;
+}