diff options
Diffstat (limited to 'shared-core/mach64_dma.c')
| -rw-r--r-- | shared-core/mach64_dma.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/shared-core/mach64_dma.c b/shared-core/mach64_dma.c index 3f4394c0..7cba8ade 100644 --- a/shared-core/mach64_dma.c +++ b/shared-core/mach64_dma.c @@ -1449,6 +1449,33 @@ drm_buf_t *mach64_freelist_get(drm_mach64_private_t * dev_priv) return entry->buf; } +int mach64_freelist_put(drm_mach64_private_t * dev_priv, drm_buf_t * copy_buf) +{ + struct list_head *ptr; + drm_mach64_freelist_t *entry; + +#if MACH64_EXTRA_CHECKING + list_for_each(ptr, &dev_priv->pending) { + entry = list_entry(ptr, drm_mach64_freelist_t, list); + if (copy_buf == entry->buf) { + DRM_ERROR("%s: Trying to release a pending buf\n", + __FUNCTION__); + return DRM_ERR(EFAULT); + } + } +#endif + ptr = dev_priv->placeholders.next; + entry = list_entry(ptr, drm_mach64_freelist_t, list); + copy_buf->pending = 0; + copy_buf->used = 0; + entry->buf = copy_buf; + entry->discard = 1; + list_del(ptr); + list_add_tail(ptr, &dev_priv->free_list); + + return 0; +} + /*@}*/ |