Merge tag 'spi-mxs' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc

[cascardo/linux.git] / drivers / gpu / drm / ttm / ttm_bo.c

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 402ab69..bf6e4b5 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -580,6 +580,7 @@ retry:
        if (unlikely(ret != 0))
                return ret;
 
+retry_reserve:
        spin_lock(&glob->lru_lock);
 
        if (unlikely(list_empty(&bo->ddestroy))) {
@@ -587,14 +588,20 @@ retry:
                return 0;
        }
 
-       ret = ttm_bo_reserve_locked(bo, interruptible,
-                                   no_wait_reserve, false, 0);
+       ret = ttm_bo_reserve_locked(bo, false, true, false, 0);
 
-       if (unlikely(ret != 0)) {
+       if (unlikely(ret == -EBUSY)) {
                spin_unlock(&glob->lru_lock);
-               return ret;
+               if (likely(!no_wait_reserve))
+                       ret = ttm_bo_wait_unreserved(bo, interruptible);
+               if (unlikely(ret != 0))
+                       return ret;
+
+               goto retry_reserve;
        }
 
+       BUG_ON(ret != 0);
+
        /**
         * We can re-check for sync object without taking
         * the bo::lock since setting the sync object requires
@@ -811,17 +818,14 @@ retry:
                                          no_wait_reserve, no_wait_gpu);
                kref_put(&bo->list_kref, ttm_bo_release_list);
 
-               if (likely(ret == 0 || ret == -ERESTARTSYS))
-                       return ret;
-
-               goto retry;
+               return ret;
        }
 
-       ret = ttm_bo_reserve_locked(bo, false, no_wait_reserve, false, 0);
+       ret = ttm_bo_reserve_locked(bo, false, true, false, 0);
 
        if (unlikely(ret == -EBUSY)) {
                spin_unlock(&glob->lru_lock);
-               if (likely(!no_wait_gpu))
+               if (likely(!no_wait_reserve))
                        ret = ttm_bo_wait_unreserved(bo, interruptible);
 
                kref_put(&bo->list_kref, ttm_bo_release_list);