static int mga_dma_indices(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_mga_private_t *dev_priv = dev->dev_private; struct drm_device_dma *dma = dev->dma; struct drm_buf *buf; drm_mga_buf_priv_t *buf_priv; drm_mga_indices_t *indices = data; LOCK_TEST_WITH_RETURN(dev, file_priv); if (indices->idx < 0 || indices->idx > dma->buf_count) return -EINVAL; buf = dma->buflist[indices->idx]; buf_priv = buf->dev_private; buf_priv->discard = indices->discard; if (!mga_verify_state(dev_priv)) { if (indices->discard) { if (buf_priv->dispatched == 1) AGE_BUFFER(buf_priv); buf_priv->dispatched = 0; mga_freelist_put(dev, buf); } return -EINVAL; } WRAP_TEST_WITH_RETURN(dev_priv); mga_dma_dispatch_indices(dev, buf, indices->start, indices->end); return 0; }
int mga_dma_indices( struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg ) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_mga_private_t *dev_priv = dev->dev_private; drm_device_dma_t *dma = dev->dma; drm_buf_t *buf; drm_mga_buf_priv_t *buf_priv; drm_mga_indices_t indices; LOCK_TEST_WITH_RETURN( dev ); if ( copy_from_user( &indices, (drm_mga_indices_t *)arg, sizeof(indices) ) ) return -EFAULT; if(indices.idx < 0 || indices.idx > dma->buf_count) return -EINVAL; buf = dma->buflist[indices.idx]; buf_priv = buf->dev_private; buf_priv->discard = indices.discard; if ( !mga_verify_state( dev_priv ) ) { if ( indices.discard ) { if ( buf_priv->dispatched == 1 ) AGE_BUFFER( buf_priv ); buf_priv->dispatched = 0; mga_freelist_put( dev, buf ); } return -EINVAL; } WRAP_TEST_WITH_RETURN( dev_priv ); mga_dma_dispatch_indices( dev, buf, indices.start, indices.end ); return 0; }
static int mga_dma_indices(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_mga_private_t *dev_priv = dev->dev_private; struct drm_device_dma *dma = dev->dma; struct drm_buf *buf; drm_mga_buf_priv_t *buf_priv; drm_mga_indices_t indices; LOCK_TEST_WITH_RETURN(dev, filp); DRM_COPY_FROM_USER_IOCTL(indices, (drm_mga_indices_t __user *) data, sizeof(indices)); if (indices.idx < 0 || indices.idx > dma->buf_count) return DRM_ERR(EINVAL); buf = dma->buflist[indices.idx]; buf_priv = buf->dev_private; buf_priv->discard = indices.discard; if (!mga_verify_state(dev_priv)) { if (indices.discard) { if (buf_priv->dispatched == 1) AGE_BUFFER(buf_priv); buf_priv->dispatched = 0; mga_freelist_put(dev, buf); } return DRM_ERR(EINVAL); } WRAP_TEST_WITH_RETURN(dev_priv); mga_dma_dispatch_indices(dev, buf, indices.start, indices.end); return 0; }