Merge tag 'drm-vc4-fixes-2016-09-14' of https://github.com/anholt/linux into drm...

This pull request brings in a fix for crashes in X on VC4.

* tag 'drm-vc4-fixes-2016-09-14' of https://github.com/anholt/linux:
  drm/vc4: mark vc4_bo_cache_purge() static
  drm/vc4: Allow some more signals to be packed with uniform resets.

diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index 59adcf8532dd804348d31e4f73249e3561cb5353..3f6704cf6608d7be47637c6aa585de087b7f74ee 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -144,7 +144,7 @@ static struct list_head *vc4_get_cache_list_for_size(struct drm_device *dev,
        return &vc4->bo_cache.size_list[page_index];
 }
 
-void vc4_bo_cache_purge(struct drm_device *dev)
+static void vc4_bo_cache_purge(struct drm_device *dev)
 {
        struct vc4_dev *vc4 = to_vc4_dev(dev);
 

diff --git a/drivers/gpu/drm/vc4/vc4_validate_shaders.c b/drivers/gpu/drm/vc4/vc4_validate_shaders.c
index 46527e989ce37839b0bd76d27dd0d5a4821bf58c..2543cf5b8b51869d51b72a5db5017dded38761be 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_validate_shaders.c
+++ b/drivers/gpu/drm/vc4/vc4_validate_shaders.c
@@ -309,8 +309,14 @@ validate_uniform_address_write(struct vc4_validated_shader_info *validated_shade
         * of uniforms on each side.  However, this scheme is easy to
         * validate so it's all we allow for now.
         */
-
-       if (QPU_GET_FIELD(inst, QPU_SIG) != QPU_SIG_NONE) {
+       switch (QPU_GET_FIELD(inst, QPU_SIG)) {
+       case QPU_SIG_NONE:
+       case QPU_SIG_SCOREBOARD_UNLOCK:
+       case QPU_SIG_COLOR_LOAD:
+       case QPU_SIG_LOAD_TMU0:
+       case QPU_SIG_LOAD_TMU1:
+               break;
+       default:
                DRM_ERROR("uniforms address change must be "
                          "normal math\n");
                return false;