Add a couple of doxygen comments from reading the code.

diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c
index a2356c8..4ce5f48 100644 (file)
--- a/linux-core/drm_bo.c
+++ b/linux-core/drm_bo.c
@@ -705,6 +705,10 @@ static int drm_bo_evict(struct drm_buffer_object * bo, unsigned mem_type,
        return ret;
 }
 
+/**
+ * Repeatedly evict memory from the LRU for @mem_type until we create enough
+ * space, or we've evicted everything and there isn't enough space.
+ */
 static int drm_bo_mem_force_space(struct drm_device * dev,
                                  struct drm_bo_mem_reg * mem,
                                  uint32_t mem_type, int no_wait)
@@ -791,6 +795,14 @@ static int drm_bo_mt_compatible(struct drm_mem_type_manager * man,
        return 1;
 }
 
+/**
+ * Creates space for memory region @mem according to its type.
+ *
+ * This function first searches for free space in compatible memory types in
+ * the priority order defined by the driver.  If free space isn't found, then
+ * drm_bo_mem_force_space is attempted in priority order to evict and find
+ * space.
+ */
 int drm_bo_mem_space(struct drm_buffer_object * bo,
                     struct drm_bo_mem_reg * mem, int no_wait)
 {
@@ -2406,8 +2418,7 @@ int drm_bo_driver_init(struct drm_device * dev)
         * Initialize the system memory buffer type.
         * Other types need to be driver / IOCTL initialized.
         */
-
-       ret = drm_bo_init_mm(dev, 0, 0, 0);
+       ret = drm_bo_init_mm(dev, DRM_BO_MEM_LOCAL, 0, 0);
        if (ret)
                goto out_unlock;