diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index 6b41e6aad2227..21fdcee48e184 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -311,9 +311,9 @@ static int ttm_mem_init_kernel_zone(struct ttm_mem_global *glob,
 
 	zone->name = "kernel";
 	zone->zone_mem = mem;
-	zone->max_mem = mem >> 1;
-	zone->emer_mem = (mem >> 1) + (mem >> 2);
-	zone->swap_limit = zone->max_mem - (mem >> 3);
+	zone->max_mem = mem - (mem >> 4); /* 15/16 */
+	zone->emer_mem = mem - (mem >> 4); /* 15/16 */
+	zone->swap_limit = zone->max_mem;
 	zone->used_mem = 0;
 	zone->glob = glob;
 	glob->zone_kernel = zone;