diff options
author | Ben Skeggs <bskeggs@redhat.com> | 2011-06-07 15:25:12 +1000 |
---|---|---|
committer | Ben Skeggs <bskeggs@redhat.com> | 2011-06-23 16:00:42 +1000 |
commit | 2fd3db6f1457050bdebf97e45147ce6827e1742a (patch) | |
tree | 5e1a6ab1ff18497a63364ee9ca6c6d1e8608ebeb | |
parent | 7375c95b343aa575940704a38482a334ea87ac6c (diff) |
drm/nouveau: remove implicit mapping of every bo into chan_vm
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 10 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_drv.h | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_gem.c | 42 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_vm.h | 1 |
4 files changed, 43 insertions, 11 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 49af4072c0f6..890d50e4d682 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -49,7 +49,6 @@ nouveau_bo_del_ttm(struct ttm_buffer_object *bo) DRM_ERROR("bo %p still attached to GEM object\n", bo); nv10_mem_put_tile_region(dev, nvbo->tile, NULL); - nouveau_bo_vma_del(nvbo, &nvbo->vma); kfree(nvbo); } @@ -115,14 +114,6 @@ nouveau_bo_new(struct drm_device *dev, int size, int align, nvbo->bo.mem.num_pages = size >> PAGE_SHIFT; nouveau_bo_placement_set(nvbo, flags, 0); - if (dev_priv->chan_vm) { - ret = nouveau_bo_vma_add(nvbo, dev_priv->chan_vm, &nvbo->vma); - if (ret) { - kfree(nvbo); - return ret; - } - } - ret = ttm_bo_init(&dev_priv->ttm.bdev, &nvbo->bo, size, ttm_bo_type_device, &nvbo->placement, align >> PAGE_SHIFT, 0, false, NULL, size, @@ -1103,6 +1094,7 @@ nouveau_bo_vma_add(struct nouveau_bo *nvbo, struct nouveau_vm *vm, nouveau_vm_map_sg(vma, 0, size, node, node->pages); list_add_tail(&vma->head, &nvbo->vma_list); + vma->refcount = 1; return 0; } diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index bdb682d613d3..bbea0452dca7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -115,7 +115,6 @@ struct nouveau_bo { struct nouveau_channel *channel; - struct nouveau_vma vma; struct list_head vma_list; unsigned page_shift; diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 3e1c7010e076..022393777805 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -63,20 +63,60 @@ int nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv) { struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv); + struct nouveau_bo *nvbo = nouveau_gem_object(gem); + struct nouveau_vma *vma; + int ret; if (!fpriv->vm) return 0; - return 0; + ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0); + if (ret) + return ret; + + vma = nouveau_bo_vma_find(nvbo, fpriv->vm); + if (!vma) { + vma = kzalloc(sizeof(*vma), GFP_KERNEL); + if (!vma) { + ret = -ENOMEM; + goto out; + } + + ret = nouveau_bo_vma_add(nvbo, fpriv->vm, vma); + if (ret) { + kfree(vma); + goto out; + } + } else { + vma->refcount++; + } + +out: + ttm_bo_unreserve(&nvbo->bo); + return ret; } void nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv) { struct nouveau_fpriv *fpriv = nouveau_fpriv(file_priv); + struct nouveau_bo *nvbo = nouveau_gem_object(gem); + struct nouveau_vma *vma; + int ret; if (!fpriv->vm) return; + + ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0); + if (ret) + return; + + vma = nouveau_bo_vma_find(nvbo, fpriv->vm); + if (vma) { + if (--vma->refcount == 0) + nouveau_bo_vma_del(nvbo, vma); + } + ttm_bo_unreserve(&nvbo->bo); } int diff --git a/drivers/gpu/drm/nouveau/nouveau_vm.h b/drivers/gpu/drm/nouveau/nouveau_vm.h index 07d07ff9e28b..579ca8cc223c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_vm.h +++ b/drivers/gpu/drm/nouveau/nouveau_vm.h @@ -42,6 +42,7 @@ struct nouveau_vm_pgd { struct nouveau_vma { struct list_head head; + int refcount; struct nouveau_vm *vm; struct nouveau_mm_node *node; u64 offset; |