diff options
| -rw-r--r-- | linux/r128_state.c | 69 |
1 files changed, 67 insertions, 2 deletions
diff --git a/linux/r128_state.c b/linux/r128_state.c index 66af5c45..9de1b6b9 100644 --- a/linux/r128_state.c +++ b/linux/r128_state.c @@ -1519,10 +1519,75 @@ int r128_cce_indirect( struct inode *inode, struct file *filp, { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; + drm_r128_private_t *dev_priv = dev->dev_private; + drm_device_dma_t *dma = dev->dma; + drm_buf_t *buf; + drm_r128_buf_priv_t *buf_priv; + drm_r128_indirect_t indirect; +#if 0 + RING_LOCALS; +#endif LOCK_TEST_WITH_RETURN( dev ); - /* Indirect buffer firing is not supported at this time. + if ( !dev_priv ) { + DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ ); + return -EINVAL; + } + + if ( copy_from_user( &indirect, (drm_r128_indirect_t *)arg, + sizeof(indirect) ) ) + return -EFAULT; + + DRM_DEBUG( "indirect: idx=%d s=%d e=%d d=%d\n", + indirect.idx, indirect.start, + indirect.end, indirect.discard ); + + if ( indirect.idx < 0 || indirect.idx >= dma->buf_count ) { + DRM_ERROR( "buffer index %d (of %d max)\n", + indirect.idx, dma->buf_count - 1 ); + return -EINVAL; + } + + buf = dma->buflist[indirect.idx]; + buf_priv = buf->dev_private; + + if ( buf->pid != current->pid ) { + DRM_ERROR( "process %d using buffer owned by %d\n", + current->pid, buf->pid ); + return -EINVAL; + } + if ( buf->pending ) { + DRM_ERROR( "sending pending buffer %d\n", indirect.idx ); + return -EINVAL; + } + + if ( indirect.start < buf->used ) { + DRM_ERROR( "reusing indirect: start=0x%x actual=0x%x\n", + indirect.start, buf->used ); + return -EINVAL; + } + + RING_SPACE_TEST_WITH_RETURN( dev_priv ); + VB_AGE_TEST_WITH_RETURN( dev_priv ); + + buf->used = indirect.end; + buf_priv->discard = indirect.discard; + +#if 0 + /* Wait for the 3D stream to idle before the indirect buffer + * containing 2D acceleration commands is processed. */ - return -EINVAL; + BEGIN_RING( 2 ); + RADEON_WAIT_UNTIL_3D_IDLE(); + ADVANCE_RING(); +#endif + + /* Dispatch the indirect buffer full of commands from the + * X server. This is insecure and is thus only available to + * privileged clients. + */ + r128_cce_dispatch_indirect( dev, buf, indirect.start, indirect.end ); + + return 0; } |