drm/i915: Fix Sandybridge fence registers

[karo-tx-linux.git] / drivers / gpu / drm / i915 / i915_gem.c

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 16fca1d1799a4211474a91e7fc52b605eceafbfc..cf4ffbee1c00633a809a624a165a359082386975 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2351,14 +2351,21 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj)
 
        reg->obj = obj;
 
-       if (IS_GEN6(dev))
+       switch (INTEL_INFO(dev)->gen) {
+       case 6:
                sandybridge_write_fence_reg(reg);
-       else if (IS_I965G(dev))
+               break;
+       case 5:
+       case 4:
                i965_write_fence_reg(reg);
-       else if (IS_I9XX(dev))
+               break;
+       case 3:
                i915_write_fence_reg(reg);
-       else
+               break;
+       case 2:
                i830_write_fence_reg(reg);
+               break;
+       }
 
        trace_i915_gem_object_get_fence(obj, obj_priv->fence_reg,
                        obj_priv->tiling_mode);
@@ -2381,22 +2388,26 @@ i915_gem_clear_fence_reg(struct drm_gem_object *obj)
        struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
        struct drm_i915_fence_reg *reg =
                &dev_priv->fence_regs[obj_priv->fence_reg];
+       uint32_t fence_reg;
 
-       if (IS_GEN6(dev)) {
+       switch (INTEL_INFO(dev)->gen) {
+       case 6:
                I915_WRITE64(FENCE_REG_SANDYBRIDGE_0 +
                             (obj_priv->fence_reg * 8), 0);
-       } else if (IS_I965G(dev)) {
+               break;
+       case 5:
+       case 4:
                I915_WRITE64(FENCE_REG_965_0 + (obj_priv->fence_reg * 8), 0);
-       } else {
-               uint32_t fence_reg;
-
-               if (obj_priv->fence_reg < 8)
-                       fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
+               break;
+       case 3:
+               if (obj_priv->fence_reg > 8)
+                       fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg - 8) * 4;
                else
-                       fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg -
-                                                      8) * 4;
+       case 2:
+                       fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
 
                I915_WRITE(fence_reg, 0);
+               break;
        }
 
        reg->obj = NULL;