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| author | Ben Skeggs <bskeggs@redhat.com> | 2011-06-07 05:25:12 (GMT) |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-06-23 06:00:42 (GMT) |
| commit | 2fd3db6f1457050bdebf97e45147ce6827e1742a (patch) | |
| tree | 5e1a6ab1ff18497a63364ee9ca6c6d1e8608ebeb /drivers/gpu/drm/nouveau/nouveau_gem.c | |
| parent | 7375c95b343aa575940704a38482a334ea87ac6c (diff) | |
| download | linux-fsl-qoriq-2fd3db6f1457050bdebf97e45147ce6827e1742a.tar.xz | |
drm/nouveau: remove implicit mapping of every bo into chan_vm
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_gem.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_gem.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 3e1c701..0223937 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 |