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-rw-r--r--linux-core/nouveau_buffer.c94
1 files changed, 86 insertions, 8 deletions
diff --git a/linux-core/nouveau_buffer.c b/linux-core/nouveau_buffer.c
index e9f09eb3..bb9f6f41 100644
--- a/linux-core/nouveau_buffer.c
+++ b/linux-core/nouveau_buffer.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2005 Stephane Marchesin.
+ * Copyright 2007 Dave Airlied
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -22,7 +22,8 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
/*
- * Authors: Jeremy Kolb <jkolb@brandeis.edu>
+ * Authors: Dave Airlied <airlied@linux.ie>
+ * Jeremy Kolb <jkolb@brandeis.edu>
*/
#include "drmP.h"
@@ -33,8 +34,6 @@
struct drm_ttm_backend *nouveau_create_ttm_backend_entry(struct drm_device * dev)
{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
-
return drm_agp_init_ttm(dev);
}
@@ -61,8 +60,6 @@ int nouveau_init_mem_type(struct drm_device *dev,
uint32_t type,
struct drm_mem_type_manager *man)
{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
-
switch (type) {
case DRM_BO_MEM_LOCAL:
man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
@@ -119,6 +116,82 @@ uint32_t nouveau_evict_mask(struct drm_buffer_object *bo)
}
+static void nouveau_emit_copy_blit(struct drm_device * dev,
+ uint32_t src_offset,
+ uint32_t dst_offset,
+ uint32_t pages, int direction)
+{
+ return;
+}
+
+static int nouveau_move_blit(struct drm_buffer_object *bo,
+ int evict,
+ int no_wait,
+ struct drm_bo_mem_reg *new_mem)
+{
+ struct drm_bo_mem_reg *old_mem = &bo->mem;
+ int dir = 0;
+
+ if ((old_mem->mem_type == new_mem->mem_type) &&
+ (new_mem->mm_node->start <
+ old_mem->mm_node->start + old_mem->mm_node->size)) {
+ dir = 1;
+ }
+
+ nouveau_emit_copy_blit(bo->dev,
+ old_mem->mm_node->start << PAGE_SHIFT,
+ new_mem->mm_node->start << PAGE_SHIFT,
+ new_mem->num_pages, dir);
+
+ /* we don't need to cleanup out mess because our fences
+ * are from userland. so this cleanup call is probably wrong.
+ */
+ return drm_bo_move_accel_cleanup(bo, evict, no_wait, 0,
+ DRM_FENCE_TYPE_EXE,
+ 0,
+ new_mem);
+
+}
+
+static int nouveau_move_flip(struct drm_buffer_object *bo,
+ int evict,
+ int no_wait,
+ struct drm_bo_mem_reg *new_mem)
+{
+ struct drm_device *dev = bo->dev;
+ struct drm_bo_mem_reg tmp_mem;
+ int ret;
+
+ tmp_mem = *new_mem;
+ tmp_mem.mm_node = NULL;
+ tmp_mem.mask = DRM_BO_FLAG_MEM_TT |
+ DRM_BO_FLAG_CACHED | DRM_BO_FLAG_FORCE_CACHING;
+
+ ret = drm_bo_mem_space(bo, &tmp_mem, no_wait);
+ if (ret)
+ return ret;
+
+ ret = drm_bind_ttm(bo->ttm, tmp_mem.mm_node->start);
+ if (ret)
+ goto out_cleanup;
+
+ ret = nouveau_move_blit(bo, 1, no_wait, &tmp_mem);
+ if (ret)
+ goto out_cleanup;
+
+ ret = drm_bo_move_ttm(bo, evict, no_wait, new_mem);
+
+out_cleanup:
+ if (tmp_mem.mm_node) {
+ mutex_lock(&dev->struct_mutex);
+ if (tmp_mem.mm_node != bo->pinned_node)
+ drm_mm_put_block(tmp_mem.mm_node);
+ tmp_mem.mm_node = NULL;
+ mutex_unlock(&dev->struct_mutex);
+ }
+ return ret;
+}
+
int nouveau_move(struct drm_buffer_object *bo,
int evict,
int no_wait,
@@ -127,12 +200,17 @@ int nouveau_move(struct drm_buffer_object *bo,
struct drm_bo_mem_reg *old_mem = &bo->mem;
if (old_mem->mem_type == DRM_BO_MEM_LOCAL) {
+ /* local to VRAM */
return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+ }
else if (new_mem->mem_type == DRM_BO_MEM_LOCAL) {
- return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+ /* VRAM to local */
+ /*if (nouveau_move_flip(bo, evict, no_wait, new_mem))*/
+ return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
}
else {
- return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+ /*if (nouveau_move_blit(bo, evict, no_wait, new_mem))*/
+ return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
}
return 0;
}