drm/vmwgfx: Use fb handover mechanism instead of stealth mode.

When the vmwgfx module is loaded on top of vesafb, it would operate in
stealth mode in parallel with vesafb, evicting VRAM on dropmaster.

Change that to use the vesafb handover mechanism, like other drmfb drivers.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

@@ -348,22 +348,19 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 		 */
 
 		DRM_INFO("It appears like vesafb is loaded. "
-			 "Ignore above error if any. Entering stealth mode.\n");
+			 "Ignore above error if any.\n");
 		ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
 		if (unlikely(ret != 0)) {
 			DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
 			goto out_no_device;
 		}
-		vmw_kms_init(dev_priv);
-		vmw_overlay_init(dev_priv);
-	} else {
+	}
 	ret = vmw_request_device(dev_priv);
 	if (unlikely(ret != 0))
 		goto out_no_device;
 	vmw_kms_init(dev_priv);
 	vmw_overlay_init(dev_priv);
 	vmw_fb_init(dev_priv);
-	}
 
 	dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
 	register_pm_notifier(&dev_priv->pm_nb);
@@ -406,17 +403,15 @@ static int vmw_driver_unload(struct drm_device *dev)
 
 	unregister_pm_notifier(&dev_priv->pm_nb);
 
-	if (!dev_priv->stealth) {
 	vmw_fb_close(dev_priv);
 	vmw_kms_close(dev_priv);
 	vmw_overlay_close(dev_priv);
 	vmw_release_device(dev_priv);
-		pci_release_regions(dev->pdev);
-	} else {
-		vmw_kms_close(dev_priv);
-		vmw_overlay_close(dev_priv);
+	if (dev_priv->stealth)
 		pci_release_region(dev->pdev, 2);
-	}
+	else
+		pci_release_regions(dev->pdev);
+
 	if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
 		drm_irq_uninstall(dev_priv->dev);
 	if (dev->devname == vmw_devname)
@@ -585,11 +580,6 @@ static int vmw_master_set(struct drm_device *dev,
 	int ret = 0;
 
 	DRM_INFO("Master set.\n");
-	if (dev_priv->stealth) {
-		ret = vmw_request_device(dev_priv);
-		if (unlikely(ret != 0))
-			return ret;
-	}
 
 	if (active) {
 		BUG_ON(active != &dev_priv->fbdev_master);
@@ -649,17 +639,10 @@ static void vmw_master_drop(struct drm_device *dev,
 
 	ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
 
-	if (dev_priv->stealth) {
-		ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
-		if (unlikely(ret != 0))
-			DRM_ERROR("Unable to clean VRAM on master drop.\n");
-		vmw_release_device(dev_priv);
-	}
 	dev_priv->active_master = &dev_priv->fbdev_master;
 	ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
 	ttm_vt_unlock(&dev_priv->fbdev_master.lock);
 
-	if (!dev_priv->stealth)
 	vmw_fb_on(dev_priv);
 }
 

drivers/gpu/drm/vmwgfx/vmwgfx_fb.c

@@ -559,6 +559,9 @@ int vmw_fb_init(struct vmw_private *vmw_priv)
 	info->pixmap.scan_align = 1;
 #endif
 
+	info->aperture_base = vmw_priv->vram_start;
+	info->aperture_size = vmw_priv->vram_size;
+
 	/*
 	 * Dirty & Deferred IO
 	 */