[PATCH 13/13] drm/i915: Finally kill off struct intel_gtt

[ben at bwidawsk.net (Ben Widawsky)]

Nothing is shared anymore between AGP and drm/i915 driver. Pre-GEN6
still uses AGP, but all necessary info is encapsulated per driver.

v2: Conflict resolution from earlier rebase

Reviewed-by: Rodrigo Vivi <rodrigo.vivi at gmail.com>
Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
 drivers/char/agp/intel-gtt.c        |  7 -------
 drivers/gpu/drm/i915/i915_gem_gtt.c | 21 +--------------------
 include/drm/intel-gtt.h             |  3 ---
 3 files changed, 1 insertion(+), 30 deletions(-)

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 773ce8b..53086a2 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -60,7 +60,6 @@ struct intel_gtt_driver {
 };
 
 static struct _intel_private {
-	struct intel_gtt base;
 	const struct intel_gtt_driver *driver;
 	struct pci_dev *pcidev;	/* device one */
 	struct pci_dev *bridge_dev;
@@ -1372,12 +1371,6 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 }
 EXPORT_SYMBOL(intel_gmch_probe);
 
-struct intel_gtt *intel_gtt_get(void)
-{
-	return &intel_private.base;
-}
-EXPORT_SYMBOL(intel_gtt_get);
-
 void intel_gtt_chipset_flush(void)
 {
 	if (intel_private.driver->chipset_flush)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 33e7bbc..5354720 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -713,28 +713,10 @@ int i915_gem_gtt_init(struct drm_device *dev)
 	 * hostbridge query stuff. Skip it entirely
 	 */
 	if (INTEL_INFO(dev)->gen < 6) {
-		ret = intel_gmch_probe(dev_priv->bridge_dev, dev->pdev, NULL);
-		if (!ret) {
-			DRM_ERROR("failed to set up gmch\n");
-			return -EIO;
-		}
-
-		dev_priv->mm.gtt = intel_gtt_get();
-		if (!dev_priv->mm.gtt) {
-			DRM_ERROR("Failed to initialize GTT\n");
-			intel_gmch_remove();
-			return -ENODEV;
-		}
-
 		dev_priv->gtt.do_idle_maps = needs_idle_maps(dev);
-
-		return 0;
+		return intel_gmch_probe(dev_priv->bridge_dev, dev->pdev, NULL);
 	}
 
-	dev_priv->mm.gtt = kzalloc(sizeof(*dev_priv->mm.gtt), GFP_KERNEL);
-	if (!dev_priv->mm.gtt)
-		return -ENOMEM;
-
 	/* For GEN6+ the PTEs for the ggtt live at 2MB + BAR0 */
 	gtt_bus_addr = pci_resource_start(dev->pdev, 0) + (2<<20);
 
@@ -791,5 +773,4 @@ void i915_gem_gtt_fini(struct drm_device *dev)
 	teardown_scratch_page(dev);
 	if (INTEL_INFO(dev)->gen < 6)
 		intel_gmch_remove();
-	kfree(dev_priv->mm.gtt);
 }
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index ae55605..8b546ee 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -3,9 +3,6 @@
 #ifndef _DRM_INTEL_GTT_H
 #define	_DRM_INTEL_GTT_H
 
-struct intel_gtt {
-} *intel_gtt_get(void);
-
 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 		     struct agp_bridge_data *bridge);
 void intel_gmch_remove(void);
-- 
1.8.1.1