drm/i915: Install fence register for tiled scanout on i915

[safe/jmp/linux-2.6] / 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 a5f95ad..4f34541 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -46,7 +46,6 @@ static void i915_gem_object_set_to_full_cpu_read_domain(struct drm_gem_object *o
 static int i915_gem_object_wait_rendering(struct drm_gem_object *obj);
 static int i915_gem_object_bind_to_gtt(struct drm_gem_object *obj,
                                           unsigned alignment);
-static int i915_gem_object_get_fence_reg(struct drm_gem_object *obj, bool write);
 static void i915_gem_clear_fence_reg(struct drm_gem_object *obj);
 static int i915_gem_evict_something(struct drm_device *dev);
 static int i915_gem_phys_pwrite(struct drm_device *dev, struct drm_gem_object *obj,
@@ -1158,7 +1157,7 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
        /* Need a new fence register? */
        if (obj_priv->fence_reg == I915_FENCE_REG_NONE &&
            obj_priv->tiling_mode != I915_TILING_NONE) {
-               ret = i915_gem_object_get_fence_reg(obj, write);
+               ret = i915_gem_object_get_fence_reg(obj);
                if (ret) {
                        mutex_unlock(&dev->struct_mutex);
                        return VM_FAULT_SIGBUS;
@@ -2169,7 +2168,6 @@ static void i830_write_fence_reg(struct drm_i915_fence_reg *reg)
 /**
  * i915_gem_object_get_fence_reg - set up a fence reg for an object
  * @obj: object to map through a fence reg
- * @write: object is about to be written
  *
  * When mapping objects through the GTT, userspace wants to be able to write
  * to them without having to worry about swizzling if the object is tiled.
@@ -2180,8 +2178,8 @@ static void i830_write_fence_reg(struct drm_i915_fence_reg *reg)
  * It then sets up the reg based on the object's properties: address, pitch
  * and tiling format.
  */
-static int
-i915_gem_object_get_fence_reg(struct drm_gem_object *obj, bool write)
+int
+i915_gem_object_get_fence_reg(struct drm_gem_object *obj)
 {
        struct drm_device *dev = obj->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
@@ -3550,7 +3548,7 @@ i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment)
        if (!IS_I965G(dev) &&
            obj_priv->fence_reg == I915_FENCE_REG_NONE &&
            obj_priv->tiling_mode != I915_TILING_NONE) {
-               ret = i915_gem_object_get_fence_reg(obj, true);
+               ret = i915_gem_object_get_fence_reg(obj);
                if (ret != 0) {
                        if (ret != -EBUSY && ret != -ERESTARTSYS)
                                DRM_ERROR("Failure to install fence: %d\n",