drm/i915/gtt: call chipset flush directly

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

drivers/char/agp/intel-gtt.c

@@ -1476,6 +1476,13 @@ const struct intel_gtt *intel_gtt_get(void)
 }
 EXPORT_SYMBOL(intel_gtt_get);
 
+void intel_gtt_chipset_flush(void)
+{
+	if (intel_private.driver->chipset_flush)
+		intel_private.driver->chipset_flush();
+}
+EXPORT_SYMBOL(intel_gtt_chipset_flush);
+
 void intel_gmch_remove(struct pci_dev *pdev)
 {
 	if (intel_private.pcidev)

drivers/gpu/drm/i915/i915_gem.c

@@ -2192,7 +2192,7 @@ i915_gem_flush(struct drm_device *dev,
 	drm_i915_private_t *dev_priv = dev->dev_private;
 
 	if (flush_domains & I915_GEM_DOMAIN_CPU)
-		drm_agp_chipset_flush(dev);
+		intel_gtt_chipset_flush();
 
 	if ((flush_domains | invalidate_domains) & I915_GEM_GPU_DOMAINS) {
 		if (flush_rings & RING_RENDER)
@@ -2920,14 +2920,13 @@ i915_gem_object_flush_gtt_write_domain(struct drm_gem_object *obj)
 static void
 i915_gem_object_flush_cpu_write_domain(struct drm_gem_object *obj)
 {
-	struct drm_device *dev = obj->dev;
 	uint32_t old_write_domain;
 
 	if (obj->write_domain != I915_GEM_DOMAIN_CPU)
 		return;
 
 	i915_gem_clflush_object(obj);
-	drm_agp_chipset_flush(dev);
+	intel_gtt_chipset_flush();
 	old_write_domain = obj->write_domain;
 	obj->write_domain = 0;
 
@@ -5069,7 +5068,7 @@ void i915_gem_detach_phys_object(struct drm_device *dev,
 			page_cache_release(page);
 		}
 	}
-	drm_agp_chipset_flush(dev);
+	intel_gtt_chipset_flush();
 
 	obj_priv->phys_obj->cur_obj = NULL;
 	obj_priv->phys_obj = NULL;
@@ -5161,7 +5160,7 @@ i915_gem_phys_pwrite(struct drm_device *dev, struct drm_gem_object *obj,
 			return -EFAULT;
 	}
 
-	drm_agp_chipset_flush(dev);
+	intel_gtt_chipset_flush();
 	return 0;
 }
 

include/drm/intel-gtt.h

@@ -13,6 +13,7 @@ const struct intel_gtt {
 	unsigned int gtt_mappable_entries;
 } *intel_gtt_get(void);
 
+void intel_gtt_chipset_flush(void);
 
 /* Special gtt memory types */
 #define AGP_DCACHE_MEMORY	1
@@ -26,4 +27,3 @@ const struct intel_gtt {
 #define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
 
 #endif
-