drm/i915: Move GEM initialisation from i915_dma.c to i915_gem.c

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

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index e3f1488..9e80d5a 100644 (file)
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1062,70 +1062,6 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
        return can_switch;
 }
 
-static bool
-intel_enable_ppgtt(struct drm_device *dev)
-{
-       if (i915_enable_ppgtt >= 0)
-               return i915_enable_ppgtt;
-
-#ifdef CONFIG_INTEL_IOMMU
-       /* Disable ppgtt on SNB if VT-d is on. */
-       if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped)
-               return false;
-#endif
-
-       return true;
-}
-
-static int i915_load_gem_init(struct drm_device *dev)
-{
-       struct drm_i915_private *dev_priv = dev->dev_private;
-       unsigned long gtt_size, mappable_size;
-       int ret;
-
-       gtt_size = dev_priv->mm.gtt->gtt_total_entries << PAGE_SHIFT;
-       mappable_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
-
-       mutex_lock(&dev->struct_mutex);
-       if (intel_enable_ppgtt(dev) && HAS_ALIASING_PPGTT(dev)) {
-               /* PPGTT pdes are stolen from global gtt ptes, so shrink the
-                * aperture accordingly when using aliasing ppgtt. */
-               gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE;
-
-               i915_gem_init_global_gtt(dev, 0, mappable_size, gtt_size);
-
-               ret = i915_gem_init_aliasing_ppgtt(dev);
-               if (ret) {
-                       mutex_unlock(&dev->struct_mutex);
-                       return ret;
-               }
-       } else {
-               /* Let GEM Manage all of the aperture.
-                *
-                * However, leave one page at the end still bound to the scratch
-                * page.  There are a number of places where the hardware
-                * apparently prefetches past the end of the object, and we've
-                * seen multiple hangs with the GPU head pointer stuck in a
-                * batchbuffer bound at the last page of the aperture.  One page
-                * should be enough to keep any prefetching inside of the
-                * aperture.
-                */
-               i915_gem_init_global_gtt(dev, 0, mappable_size,
-                                        gtt_size);
-       }
-
-       ret = i915_gem_init_hw(dev);
-       mutex_unlock(&dev->struct_mutex);
-       if (ret) {
-               i915_gem_cleanup_aliasing_ppgtt(dev);
-               return ret;
-       }
-
-       /* Allow hardware batchbuffers unless told otherwise. */
-       dev_priv->allow_batchbuffer = 1;
-       return 0;
-}
-
 static int i915_load_modeset_init(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1168,7 +1104,7 @@ static int i915_load_modeset_init(struct drm_device *dev)
 
        intel_modeset_init(dev);
 
-       ret = i915_load_gem_init(dev);
+       ret = i915_gem_init(dev);
        if (ret)
                goto cleanup_gem_stolen;
 

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index b0b761f..2166da1 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1294,6 +1294,7 @@ int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj,
                                            uint32_t read_domains,
                                            uint32_t write_domain);
 int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj);
+int __must_check i915_gem_init(struct drm_device *dev);
 int __must_check i915_gem_init_hw(struct drm_device *dev);
 void i915_gem_init_swizzling(struct drm_device *dev);
 void i915_gem_init_ppgtt(struct drm_device *dev);

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 9bf11c8..b402d70 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3560,6 +3560,70 @@ cleanup_render_ring:
        return ret;
 }
 
+static bool
+intel_enable_ppgtt(struct drm_device *dev)
+{
+       if (i915_enable_ppgtt >= 0)
+               return i915_enable_ppgtt;
+
+#ifdef CONFIG_INTEL_IOMMU
+       /* Disable ppgtt on SNB if VT-d is on. */
+       if (INTEL_INFO(dev)->gen == 6 && intel_iommu_gfx_mapped)
+               return false;
+#endif
+
+       return true;
+}
+
+int i915_gem_init(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       unsigned long gtt_size, mappable_size;
+       int ret;
+
+       gtt_size = dev_priv->mm.gtt->gtt_total_entries << PAGE_SHIFT;
+       mappable_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
+
+       mutex_lock(&dev->struct_mutex);
+       if (intel_enable_ppgtt(dev) && HAS_ALIASING_PPGTT(dev)) {
+               /* PPGTT pdes are stolen from global gtt ptes, so shrink the
+                * aperture accordingly when using aliasing ppgtt. */
+               gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE;
+
+               i915_gem_init_global_gtt(dev, 0, mappable_size, gtt_size);
+
+               ret = i915_gem_init_aliasing_ppgtt(dev);
+               if (ret) {
+                       mutex_unlock(&dev->struct_mutex);
+                       return ret;
+               }
+       } else {
+               /* Let GEM Manage all of the aperture.
+                *
+                * However, leave one page at the end still bound to the scratch
+                * page.  There are a number of places where the hardware
+                * apparently prefetches past the end of the object, and we've
+                * seen multiple hangs with the GPU head pointer stuck in a
+                * batchbuffer bound at the last page of the aperture.  One page
+                * should be enough to keep any prefetching inside of the
+                * aperture.
+                */
+               i915_gem_init_global_gtt(dev, 0, mappable_size,
+                                        gtt_size);
+       }
+
+       ret = i915_gem_init_hw(dev);
+       mutex_unlock(&dev->struct_mutex);
+       if (ret) {
+               i915_gem_cleanup_aliasing_ppgtt(dev);
+               return ret;
+       }
+
+       /* Allow hardware batchbuffers unless told otherwise. */
+       dev_priv->allow_batchbuffer = 1;
+       return 0;
+}
+
 void
 i915_gem_cleanup_ringbuffer(struct drm_device *dev)
 {