1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 94916362b61c..f3e23e15c46d 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1763,6 +1763,13 @@ static inline unsigned int gen8_get_total_gtt_size(u16 bdw_gmch_ctl)
         bdw_gmch_ctl &= BDW_GMCH_GGMS_MASK;
         if (bdw_gmch_ctl)
                 bdw_gmch_ctl = 1 << bdw_gmch_ctl;
+
+#ifdef CONFIG_X86_32
+        /* Limit 32b platforms to a 2GB GGTT: 4 << 20 / pte size * PAGE_SIZE */
+        if (bdw_gmch_ctl > 4)
+                bdw_gmch_ctl = 4;
+#endif
+
         return bdw_gmch_ctl << 20;
 }