10 files changed, 522 insertions, 13 deletions

diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel
index 6f5b021b..510509cc 100644
--- a/linux-core/Makefile.kernel
+++ b/linux-core/Makefile.kernel
@@ -27,7 +27,7 @@ nouveau-objs := nouveau_drv.o nouveau_state.o nouveau_fifo.o nouveau_mem.o \
 		nv04_fb.o nv10_fb.o nv40_fb.o \
 		nv04_graph.o nv10_graph.o nv20_graph.o nv30_graph.o \
 		nv40_graph.o
-radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o r300_cmdbuf.o
+radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o r300_cmdbuf.o radeon_fence.o radeon_buffer.o
 sis-objs    := sis_drv.o sis_mm.o
 ffb-objs    := ffb_drv.o ffb_context.o
 savage-objs := savage_drv.o savage_bci.o savage_state.o
diff --git a/linux-core/ati_pcigart.c b/linux-core/ati_pcigart.c
index 524618a8..66742bbc 100644
--- a/linux-core/ati_pcigart.c
+++ b/linux-core/ati_pcigart.c
@@ -238,3 +238,148 @@ int drm_ati_pcigart_init(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
 	return ret;
 }
 EXPORT_SYMBOL(drm_ati_pcigart_init);
+
+static int ati_pcigart_needs_unbind_cache_adjust(drm_ttm_backend_t *backend)
+{
+	return ((backend->flags & DRM_BE_FLAG_BOUND_CACHED) ? 0 : 1);
+}
+
+void ati_pcigart_alloc_page_array(size_t size, struct ati_pcigart_memory *mem)
+{
+        mem->memory = NULL;
+        mem->flags = 0;
+
+        if (size <= 2*PAGE_SIZE)
+                mem->memory = kmalloc(size, GFP_KERNEL | __GFP_NORETRY);
+        if (mem->memory == NULL) {
+                mem->memory = vmalloc(size);
+                mem->flags |= ATI_PCIGART_FLAG_VMALLOC;
+        }
+}
+
+static int ati_pcigart_populate(drm_ttm_backend_t *backend,
+				unsigned long num_pages,
+				struct page **pages)
+{
+	ati_pcigart_ttm_priv *atipci_priv = (ati_pcigart_ttm_priv *)backend->private;	
+	struct page **cur_page, **last_page = pages + num_pages;
+	struct ati_pcigart_memory *mem;
+        unsigned long alloc_size = num_pages * sizeof(struct page *);
+
+	DRM_DEBUG("%d\n", num_pages);
+	if (drm_alloc_memctl(num_pages * sizeof(void *)))
+		return -1;
+
+	mem = drm_alloc(sizeof(struct ati_pcigart_memory), DRM_MEM_MAPPINGS);
+	if (!mem) {
+		drm_free_memctl(num_pages * sizeof(void *));
+		return -1;
+	}
+
+        ati_pcigart_alloc_page_array(alloc_size, mem);
+        mem->page_count = 0;
+        for (cur_page = pages; cur_page < last_page; ++cur_page) {
+                mem->memory[mem->page_count++] = page_to_phys(*cur_page);
+        }
+	atipci_priv->mem = mem;
+	return 0;
+}
+
+static int ati_pcigart_bind_ttm(drm_ttm_backend_t *backend,
+				unsigned long offset,
+				int cached)
+{
+	ati_pcigart_ttm_priv *atipci_priv = (ati_pcigart_ttm_priv *)backend->private;
+        struct ati_pcigart_memory *mem = atipci_priv->mem;
+        off_t j;
+
+        j = offset;
+        while (j < (pg_start + mem->page_count)) {
+                j++;
+        }
+
+        for (i = 0, j = offset; i < mem->page_count; i++, j++) {
+                /* write value */
+        }
+
+        /* need to traverse table and add entries */
+	DRM_DEBUG("\n");
+	return -1;
+}
+
+static int ati_pcigart_unbind_ttm(drm_ttm_backend_t *backend)
+{
+	ati_pcigart_ttm_priv *atipci_priv = (ati_pcigart_ttm_priv *)backend->private;
+	
+	DRM_DEBUG("\n");
+	return -1;
+}
+
+static void ati_pcigart_clear_ttm(drm_ttm_backend_t *backend)
+{
+	ati_pcigart_ttm_priv *atipci_priv = (ati_pcigart_ttm_priv *)backend->private;
+	struct ati_pcigart_memory *mem = atipci_priv->mem;
+
+	DRM_DEBUG("\n");	
+	if (mem) {
+		unsigned long num_pages = mem->page_count;
+		backend->unbind(backend);
+		/* free test */
+		drm_free(mem, sizeof(struct ati_pcigart_memory), DRM_MEM_MAPPINGS);
+		drm_free_memctl(num_pages * sizeof(void *));
+	}
+	atipci_priv->mem = NULL;
+}
+
+static void ati_pcigart_destroy_ttm(drm_ttm_backend_t *backend)
+{
+	ati_pcigart_ttm_priv *atipci_priv;
+
+	if (backend) {
+		DRM_DEBUG("\n");
+		atipci_priv = (ati_pcigart_ttm_priv *)backend->private;
+		if (atipci_priv) {
+			if (atipci_priv->mem) {
+				backend->clear(backend);
+			}
+			drm_ctl_free(atipci_priv, sizeof(*atipci_priv), DRM_MEM_MAPPINGS);
+			backend->private = NULL;
+		}
+		if (backend->flags & DRM_BE_FLAG_NEEDS_FREE) {
+			drm_ctl_free(backend, sizeof(*backend), DRM_MEM_MAPPINGS);
+		}
+	}
+}
+
+
+drm_ttm_backend_t *ati_pcigart_init_ttm(struct drm_device *dev,
+					drm_ttm_backend_t *backend)
+{
+	drm_ttm_backend_t *atipci_be;
+	ati_pcigart_ttm_priv *atipci_priv;
+
+	atipci_be = (backend != NULL) ? backend : 
+		drm_ctl_calloc(1, sizeof (*atipci_be), DRM_MEM_MAPPINGS);
+
+	if (!atipci_be)
+		return NULL;
+
+	atipci_priv = drm_ctl_calloc(1, sizeof(*atipci_priv), DRM_MEM_MAPPINGS);
+	if (!atipci_priv) {
+		drm_ctl_free(atipci_be, sizeof(*atipci_be), DRM_MEM_MAPPINGS);
+		return NULL;
+	}
+
+	atipci_priv->populated = FALSE;
+	atipci_be->needs_ub_cache_adjust = ati_pcigart_needs_unbind_cache_adjust;
+	atipci_be->populate = ati_pcigart_populate;
+	atipci_be->clear = ati_pcigart_clear_ttm;
+	atipci_be->bind = ati_pcigart_bind_ttm;
+	atipci_be->unbind = ati_pcigart_unbind_ttm;
+	atipci_be->destroy = ati_pcigart_destroy_ttm;
+	
+	DRM_FLAG_MASKED(atipci_be->flags, (backend == NULL) ? DRM_BE_FLAG_NEEDS_FREE : 0, DRM_BE_FLAG_NEEDS_FREE);
+	atipci_be->drm_map_type = _DRM_SCATTER_GATHER;
+	return atipci_be;
+}
+EXPORT_SYMBOL(ati_pcigart_init_ttm);
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 94cb4eee..ec432b2a 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -843,6 +843,17 @@ typedef struct drm_agp_ttm_backend {
 } drm_agp_ttm_backend_t;
 #endif
 
+#define ATI_PCIGART_FLAG_VMALLOC 1
+struct ati_pcigart_memory {
+	size_t page_count;
+	unsigned long *memory;
+	int flags;
+};
+
+typedef struct ati_pcigart_ttm_priv {
+	int populated;
+	struct ati_pcigart_memory *mem;
+} ati_pcigart_ttm_priv;
 
 static __inline__ int drm_core_check_feature(struct drm_device *dev,
 					     int feature)
diff --git a/linux-core/radeon_buffer.c b/linux-core/radeon_buffer.c
new file mode 100644
index 00000000..dd387604
--- /dev/null
+++ b/linux-core/radeon_buffer.c
@@ -0,0 +1,129 @@
+/**************************************************************************
+ * 
+ * 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 "drmP.h"
+#include "radeon_drm.h"
+#include "radeon_drv.h"
+
+
+drm_ttm_backend_t *radeon_create_ttm_backend_entry(drm_device_t * dev)
+{
+	drm_radeon_private_t *dev_priv = dev->dev_private;
+
+	if(dev_priv->flags & RADEON_IS_AGP)
+		return drm_agp_init_ttm(dev, NULL);
+	else
+		return ati_pcigart_init_ttm(dev, NULL);
+}
+
+int radeon_fence_types(drm_buffer_object_t *bo, uint32_t * class, uint32_t * type)
+{
+	*class = 0;
+	if (bo->mem.flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE))
+		*type = 3;
+	else
+		*type = 1;
+	return 0;
+}
+
+int radeon_invalidate_caches(drm_device_t * dev, uint32_t flags)
+{
+	drm_radeon_private_t *dev_priv = dev->dev_private;
+	RING_LOCALS;
+
+	BEGIN_RING(4);
+	RADEON_FLUSH_CACHE();
+	RADEON_FLUSH_ZCACHE();
+	ADVANCE_RING();
+	return 0;
+}
+
+uint32_t radeon_evict_mask(drm_buffer_object_t *bo)
+{
+	switch (bo->mem.mem_type) {
+	case DRM_BO_MEM_LOCAL:
+	case DRM_BO_MEM_TT:
+		return DRM_BO_FLAG_MEM_LOCAL;
+	default:
+		return DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_CACHED;
+	}
+}
+
+int radeon_init_mem_type(drm_device_t * dev, uint32_t type,
+			 drm_mem_type_manager_t * man)
+{
+	drm_radeon_private_t *dev_priv = dev->dev_private;
+
+	switch (type) {
+	case DRM_BO_MEM_LOCAL:
+		man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
+		    _DRM_FLAG_MEMTYPE_CACHED;
+		man->drm_bus_maptype = 0;
+		break;
+	case DRM_BO_MEM_TT:
+		if (dev_priv->flags & RADEON_IS_AGP) {
+			if (!(drm_core_has_AGP(dev) && dev->agp)) {
+				DRM_ERROR("AGP is not enabled for memory type %u\n",
+					  (unsigned)type);
+				return -EINVAL;
+			}
+			man->io_offset = dev->agp->agp_info.aper_base;
+			man->io_size = dev->agp->agp_info.aper_size * 1024 * 1024;
+			man->io_addr = NULL;
+			man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
+				_DRM_FLAG_MEMTYPE_CSELECT | _DRM_FLAG_NEEDS_IOREMAP;
+			man->drm_bus_maptype = _DRM_AGP;
+		} else {
+			man->io_offset = 0;
+			man->io_size = dev_priv->gart_size;
+			man->io_addr = NULL;
+			man->flags = _DRM_FLAG_MEMTYPE_CSELECT | _DRM_FLAG_MEMTYPE_MAPPABLE;
+			man->drm_bus_maptype = _DRM_SCATTER_GATHER;
+		}
+		break;
+	default:
+		DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int radeon_move(drm_buffer_object_t * bo,
+		int evict, int no_wait, drm_bo_mem_reg_t * new_mem)
+{
+	drm_bo_mem_reg_t *old_mem = &bo->mem;
+
+	if (old_mem->mem_type == DRM_BO_MEM_LOCAL) {
+		return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+	}
+	return 0;
+}
+
diff --git a/linux-core/radeon_drv.c b/linux-core/radeon_drv.c
index 327a6a97..d0995b5b 100644
--- a/linux-core/radeon_drv.c
+++ b/linux-core/radeon_drv.c
@@ -56,6 +56,38 @@ static struct pci_device_id pciidlist[] = {
 	radeon_PCI_IDS
 };
 
+
+#ifdef RADEON_HAVE_FENCE
+static drm_fence_driver_t radeon_fence_driver = {
+	.num_classes = 1,
+	.wrap_diff = (1 << 30),
+	.flush_diff = (1 << 29),
+	.sequence_mask = 0xffffffffU,
+	.lazy_capable = 1,
+	.emit = radeon_fence_emit_sequence,
+	.poke_flush = radeon_poke_flush,
+	.has_irq = radeon_fence_has_irq,
+};
+#endif
+#ifdef RADEON_HAVE_BUFFER
+
+static uint32_t radeon_mem_prios[] = {DRM_BO_MEM_PRIV0, DRM_BO_MEM_TT, DRM_BO_MEM_LOCAL};
+static uint32_t radeon_busy_prios[] = {DRM_BO_MEM_TT, DRM_BO_MEM_PRIV0, DRM_BO_MEM_LOCAL};
+
+static drm_bo_driver_t radeon_bo_driver = {
+	.mem_type_prio = radeon_mem_prios,
+	.mem_busy_prio = radeon_busy_prios,
+	.num_mem_type_prio = sizeof(radeon_mem_prios)/sizeof(uint32_t),
+	.num_mem_busy_prio = sizeof(radeon_busy_prios)/sizeof(uint32_t),
+	.create_ttm_backend_entry = radeon_create_ttm_backend_entry,
+	.fence_type = radeon_fence_types,
+	.invalidate_caches = radeon_invalidate_caches,
+	.init_mem_type = radeon_init_mem_type,
+	.evict_mask = radeon_evict_mask,
+	.move = radeon_move,
+};
+#endif
+
 static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
 static struct drm_driver driver = {
 	.driver_features =
@@ -101,6 +133,13 @@ static struct drm_driver driver = {
 		.remove = __devexit_p(drm_cleanup_pci),
 	},
 
+#ifdef RADEON_HAVE_FENCE
+	.fence_driver = &radeon_fence_driver,
+#endif
+#ifdef RADEON_HAVE_BUFFER
+	.bo_driver = &radeon_bo_driver,
+#endif
+
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/linux-core/radeon_fence.c b/linux-core/radeon_fence.c
new file mode 100644
index 00000000..7de3650d
--- /dev/null
+++ b/linux-core/radeon_fence.c
@@ -0,0 +1,125 @@
+/**************************************************************************
+ * 
+ * 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 "drmP.h"
+#include "drm.h"
+#include "radeon_drm.h"
+#include "radeon_drv.h"
+
+/*
+ * Implements an intel sync flush operation.
+ */
+
+static void radeon_perform_flush(drm_device_t * dev)
+{
+	drm_radeon_private_t *dev_priv = (drm_radeon_private_t *) dev->dev_private;
+	drm_fence_manager_t *fm = &dev->fm;
+	drm_fence_class_manager_t *fc = &dev->fm.class[0];
+	drm_fence_driver_t *driver = dev->driver->fence_driver;
+	uint32_t pending_flush_types = 0;
+	uint32_t sequence;
+
+	if (!dev_priv)
+		return;
+
+	pending_flush_types = fc->pending_flush |
+		((fc->pending_exe_flush) ? DRM_FENCE_TYPE_EXE : 0);
+
+	if (pending_flush_types) {
+		sequence = READ_BREADCRUMB(dev_priv);
+					     
+		drm_fence_handler(dev, 0, sequence, pending_flush_types);
+	}
+
+	return;
+}
+
+void radeon_poke_flush(drm_device_t * dev, uint32_t class)
+{
+	drm_fence_manager_t *fm = &dev->fm;
+	unsigned long flags;
+
+	if (class != 0)
+		return;
+
+	write_lock_irqsave(&fm->lock, flags);
+	radeon_perform_flush(dev);
+	write_unlock_irqrestore(&fm->lock, flags);
+}
+
+int radeon_fence_emit_sequence(drm_device_t *dev, uint32_t class,
+			       uint32_t flags, uint32_t *sequence,
+			       uint32_t *native_type)
+{
+	drm_radeon_private_t *dev_priv = (drm_radeon_private_t *) dev->dev_private;
+	RING_LOCALS;
+
+	if (!dev_priv)
+		return -EINVAL;
+
+	*native_type = DRM_FENCE_TYPE_EXE;
+	if (flags & DRM_RADEON_FENCE_FLAG_FLUSHED) {
+		*native_type |= DRM_RADEON_FENCE_TYPE_RW;
+		
+		BEGIN_RING(4);
+		
+		RADEON_FLUSH_CACHE();
+		RADEON_FLUSH_ZCACHE();
+		ADVANCE_RING();
+	}
+
+	radeon_emit_irq(dev);
+	*sequence = (uint32_t) dev_priv->counter;
+
+
+	return 0;
+}
+
+void radeon_fence_handler(drm_device_t * dev)
+{
+	drm_fence_manager_t *fm = &dev->fm;
+
+	write_lock(&fm->lock);
+	radeon_perform_flush(dev);
+	write_unlock(&fm->lock);
+}
+
+int radeon_fence_has_irq(drm_device_t *dev, uint32_t class, uint32_t flags)
+{
+	/*
+	 * We have an irq that tells us when we have a new breadcrumb.
+	 */
+
+	if (class == 0 && flags == DRM_FENCE_TYPE_EXE)
+		return 1;
+
+	return 0;
+}
diff --git a/shared-core/radeon_cp.c b/shared-core/radeon_cp.c
index e9c635d7..56d17b9a 100644
--- a/shared-core/radeon_cp.c
+++ b/shared-core/radeon_cp.c
@@ -2305,6 +2305,9 @@ int radeon_driver_firstopen(struct drm_device *dev)
 	if (ret != 0)
 		return ret;
 
+#ifdef RADEON_HAVE_BUFFER
+	drm_bo_driver_init(dev);
+#endif
 	return 0;
 }
 
diff --git a/shared-core/radeon_drm.h b/shared-core/radeon_drm.h
index 6a57b804..41fdbf69 100644
--- a/shared-core/radeon_drm.h
+++ b/shared-core/radeon_drm.h
@@ -434,8 +434,17 @@ typedef struct {
 	int pfCurrentPage;	/* which buffer is being displayed? */
 	int crtc2_base;		/* CRTC2 frame offset */
 	int tiling_enabled;	/* set by drm, read by 2d + 3d clients */
+
+	unsigned int last_fence;
 } drm_radeon_sarea_t;
 
+/* The only fence class we support */
+#define DRM_RADEON_FENCE_CLASS_ACCEL 0
+/* Fence type that guarantees read-write flush */
+#define DRM_RADEON_FENCE_TYPE_RW 2
+/* cache flushes programmed just before the fence */
+#define DRM_RADEON_FENCE_FLAG_FLUSHED 0x01000000
+
 /* WARNING: If you change any of these defines, make sure to change the
  * defines in the Xserver file (xf86drmRadeon.h)
  *
diff --git a/shared-core/radeon_drv.h b/shared-core/radeon_drv.h
index f1d9ca9e..c16a43eb 100644
--- a/shared-core/radeon_drv.h
+++ b/shared-core/radeon_drv.h
@@ -104,6 +104,11 @@
 #define DRIVER_MINOR		28
 #define DRIVER_PATCHLEVEL	0
 
+#if defined(__linux__)
+#define RADEON_HAVE_FENCE
+#define RADEON_HAVE_BUFFER
+#endif
+
 /*
  * Radeon chip families
  */
@@ -278,8 +283,9 @@ typedef struct drm_radeon_private {
 	struct mem_block *fb_heap;
 
 	/* SW interrupt */
-	wait_queue_head_t swi_queue;
-	atomic_t swi_emitted;
+	wait_queue_head_t irq_queue;
+	int counter;
+
 	int vblank_crtc;
 	uint32_t irq_enable_reg;
 	int irq_enabled;
@@ -355,6 +361,7 @@ extern void radeon_mem_release(DRMFILE filp, struct mem_block *heap);
 				/* radeon_irq.c */
 extern int radeon_irq_emit(DRM_IOCTL_ARGS);
 extern int radeon_irq_wait(DRM_IOCTL_ARGS);
+extern int radeon_emit_irq(drm_device_t * dev);
 
 extern void radeon_do_release(drm_device_t * dev);
 extern int radeon_driver_vblank_wait(drm_device_t * dev,
@@ -385,6 +392,30 @@ extern int r300_do_cp_cmdbuf(drm_device_t *dev, DRMFILE filp,
 			     drm_file_t* filp_priv,
 			     drm_radeon_kcmd_buffer_t* cmdbuf);
 
+
+#ifdef RADEON_HAVE_FENCE
+/* i915_fence.c */
+
+
+extern void radeon_fence_handler(drm_device_t *dev);
+extern int radeon_fence_emit_sequence(drm_device_t *dev, uint32_t class,
+				      uint32_t flags, uint32_t *sequence, 
+				    uint32_t *native_type);
+extern void radeon_poke_flush(drm_device_t *dev, uint32_t class);
+extern int radeon_fence_has_irq(drm_device_t *dev, uint32_t class, uint32_t flags);
+#endif
+
+#ifdef RADEON_HAVE_BUFFER
+/* radeon_buffer.c */
+extern drm_ttm_backend_t *radeon_create_ttm_backend_entry(drm_device_t *dev);
+extern int radeon_fence_types(struct drm_buffer_object *bo, uint32_t *class, uint32_t *type);
+extern int radeon_invalidate_caches(drm_device_t *dev, uint32_t buffer_flags);
+extern uint32_t radeon_evict_mask(drm_buffer_object_t *bo);
+extern int radeon_init_mem_type(drm_device_t * dev, uint32_t type,
+				drm_mem_type_manager_t * man);
+extern int radeon_move(drm_buffer_object_t * bo,
+		       int evict, int no_wait, drm_bo_mem_reg_t * new_mem);
+#endif
 /* Flags for stats.boxes
  */
 #define RADEON_BOX_DMA_IDLE      0x1
@@ -1214,4 +1245,19 @@ do {									\
 	write &= mask;						\
 } while (0)
 
+/* Breadcrumb - swi irq */
+#define READ_BREADCRUMB(dev_priv) RADEON_READ(RADEON_LAST_SWI_REG)
+
+static inline int radeon_update_breadcrumb(drm_device_t *dev)
+{
+	drm_radeon_private_t *dev_priv = dev->dev_private;
+
+	dev_priv->sarea_priv->last_fence = ++dev_priv->counter;
+
+	if (dev_priv->counter > 0x7FFFFFFFUL)
+		dev_priv->sarea_priv->last_fence = dev_priv->counter = 1;
+
+	return dev_priv->counter;
+}
+
 #endif				/* __RADEON_DRV_H__ */
diff --git a/shared-core/radeon_irq.c b/shared-core/radeon_irq.c
index 5151b4d6..95d8332c 100644
--- a/shared-core/radeon_irq.c
+++ b/shared-core/radeon_irq.c
@@ -78,7 +78,10 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS)
 
 	/* SW interrupt */
 	if (stat & RADEON_SW_INT_TEST) {
-		DRM_WAKEUP(&dev_priv->swi_queue);
+		DRM_WAKEUP(&dev_priv->irq_queue);
+#ifdef RADEON_HAVE_FENCE
+		radeon_fence_handler(dev);
+#endif
 	}
 
 	/* VBLANK interrupt */
@@ -105,14 +108,13 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS)
 	return IRQ_HANDLED;
 }
 
-static int radeon_emit_irq(drm_device_t * dev)
+int radeon_emit_irq(drm_device_t * dev)
 {
 	drm_radeon_private_t *dev_priv = dev->dev_private;
 	unsigned int ret;
 	RING_LOCALS;
 
-	atomic_inc(&dev_priv->swi_emitted);
-	ret = atomic_read(&dev_priv->swi_emitted);
+	ret = radeon_update_breadcrumb(dev);
 
 	BEGIN_RING(4);
 	OUT_RING_REG(RADEON_LAST_SWI_REG, ret);
@@ -123,19 +125,19 @@ static int radeon_emit_irq(drm_device_t * dev)
 	return ret;
 }
 
-static int radeon_wait_irq(drm_device_t * dev, int swi_nr)
+static int radeon_wait_irq(drm_device_t * dev, int irq_nr)
 {
 	drm_radeon_private_t *dev_priv =
 	    (drm_radeon_private_t *) dev->dev_private;
 	int ret = 0;
 
-	if (RADEON_READ(RADEON_LAST_SWI_REG) >= swi_nr)
+	if (READ_BREADCRUMB(dev_priv) >= irq_nr)
 		return 0;
 
 	dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
 
-	DRM_WAIT_ON(ret, dev_priv->swi_queue, 3 * DRM_HZ,
-		    RADEON_READ(RADEON_LAST_SWI_REG) >= swi_nr);
+	DRM_WAIT_ON(ret, dev_priv->irq_queue, 3 * DRM_HZ,
+		    READ_BREADCRUMB(dev_priv) >= irq_nr);
 
 	return ret;
 }
@@ -273,8 +275,8 @@ void radeon_driver_irq_postinstall(drm_device_t * dev)
 	drm_radeon_private_t *dev_priv =
 	    (drm_radeon_private_t *) dev->dev_private;
 
-	atomic_set(&dev_priv->swi_emitted, 0);
-	DRM_INIT_WAITQUEUE(&dev_priv->swi_queue);
+	dev_priv->counter = 0;
+	DRM_INIT_WAITQUEUE(&dev_priv->irq_queue);
 
 	radeon_enable_interrupt(dev);
 }