copy over some files and reorg radeon to add ttm fencing not working yet

3 files changed, 66 insertions, 11 deletions

diff --git a/shared-core/radeon_drm.h b/shared-core/radeon_drm.h
index e96e7851..bdf45802 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 3e56af30..9f6cff89 100644
--- a/shared-core/radeon_drv.h
+++ b/shared-core/radeon_drv.h
@@ -102,6 +102,11 @@
 #define DRIVER_MINOR		26
 #define DRIVER_PATCHLEVEL	0
 
+#if defined(__linux__)
+#define RADEON_HAVE_FENCE
+#define RADEON_HAVE_BUFFER
+#endif
+
 /*
  * Radeon chip families
  */
@@ -276,8 +281,8 @@ 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;
 
 	struct radeon_surface surfaces[RADEON_MAX_SURFACES];
 	struct radeon_virt_surface virt_surfaces[2*RADEON_MAX_SURFACES];
@@ -376,6 +381,30 @@ 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
@@ -1184,4 +1213,19 @@ 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 3ff0baa2..8678f5d1 100644
--- a/shared-core/radeon_irq.c
+++ b/shared-core/radeon_irq.c
@@ -79,7 +79,10 @@ 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 */
@@ -98,8 +101,7 @@ static int radeon_emit_irq(drm_device_t * dev)
 	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);
@@ -110,19 +112,19 @@ 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;
 }
@@ -224,8 +226,8 @@ 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);
 
 	/* Turn on SW and VBL ints */
 	RADEON_WRITE(RADEON_GEN_INT_CNTL,