diff options
| -rw-r--r-- | linux-core/nouveau_buffer.c | 94 |
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; } |