--- zzzz-none-000/linux-3.10.107/drivers/gpu/drm/i810/i810_dma.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/gpu/drm/i810/i810_dma.c	2021-02-04 17:41:59.000000000 +0000
@@ -97,7 +97,7 @@
 	buf = dev_priv->mmap_buffer;
 	buf_priv = buf->dev_private;
 
-	vma->vm_flags |= (VM_IO | VM_DONTCOPY);
+	vma->vm_flags |= VM_DONTCOPY;
 
 	buf_priv->currently_mapped = I810_BUF_MAPPED;
 
@@ -113,7 +113,6 @@
 	.release = drm_release,
 	.unlocked_ioctl = drm_ioctl,
 	.mmap = i810_mmap_buffers,
-	.fasync = drm_fasync,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = drm_compat_ioctl,
 #endif
@@ -214,7 +213,7 @@
 		    (drm_i810_private_t *) dev->dev_private;
 
 		if (dev_priv->ring.virtual_start)
-			drm_core_ioremapfree(&dev_priv->ring.map, dev);
+			drm_legacy_ioremapfree(&dev_priv->ring.map, dev);
 		if (dev_priv->hw_status_page) {
 			pci_free_consistent(dev->pdev, PAGE_SIZE,
 					    dev_priv->hw_status_page,
@@ -228,7 +227,7 @@
 			drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 
 			if (buf_priv->kernel_virtual && buf->total)
-				drm_core_ioremapfree(&buf_priv->map, dev);
+				drm_legacy_ioremapfree(&buf_priv->map, dev);
 		}
 	}
 	return 0;
@@ -307,7 +306,7 @@
 		buf_priv->map.flags = 0;
 		buf_priv->map.mtrr = 0;
 
-		drm_core_ioremap(&buf_priv->map, dev);
+		drm_legacy_ioremap(&buf_priv->map, dev);
 		buf_priv->kernel_virtual = buf_priv->map.handle;
 
 	}
@@ -335,7 +334,7 @@
 		DRM_ERROR("can not find sarea!\n");
 		return -EINVAL;
 	}
-	dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
+	dev_priv->mmio_map = drm_legacy_findmap(dev, init->mmio_offset);
 	if (!dev_priv->mmio_map) {
 		dev->dev_private = (void *)dev_priv;
 		i810_dma_cleanup(dev);
@@ -343,7 +342,7 @@
 		return -EINVAL;
 	}
 	dev->agp_buffer_token = init->buffers_offset;
-	dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
+	dev->agp_buffer_map = drm_legacy_findmap(dev, init->buffers_offset);
 	if (!dev->agp_buffer_map) {
 		dev->dev_private = (void *)dev_priv;
 		i810_dma_cleanup(dev);
@@ -364,7 +363,7 @@
 	dev_priv->ring.map.flags = 0;
 	dev_priv->ring.map.mtrr = 0;
 
-	drm_core_ioremap(&dev_priv->ring.map, dev);
+	drm_legacy_ioremap(&dev_priv->ring.map, dev);
 
 	if (dev_priv->ring.map.handle == NULL) {
 		dev->dev_private = (void *)dev_priv;
@@ -394,15 +393,14 @@
 
 	/* Program Hardware Status Page */
 	dev_priv->hw_status_page =
-	    pci_alloc_consistent(dev->pdev, PAGE_SIZE,
-				 &dev_priv->dma_status_page);
+		pci_zalloc_consistent(dev->pdev, PAGE_SIZE,
+				      &dev_priv->dma_status_page);
 	if (!dev_priv->hw_status_page) {
 		dev->dev_private = (void *)dev_priv;
 		i810_dma_cleanup(dev);
 		DRM_ERROR("Can not allocate hardware status page\n");
 		return -ENOMEM;
 	}
-	memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
 	DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
 
 	I810_WRITE(0x02080, dev_priv->dma_status_page);
@@ -945,8 +943,6 @@
 				 dma->buflist[vertex->idx],
 				 vertex->discard, vertex->used);
 
-	atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
-	atomic_inc(&dev->counts[_DRM_STAT_DMA]);
 	sarea_priv->last_enqueue = dev_priv->counter - 1;
 	sarea_priv->last_dispatch = (int)hw_status[5];
 
@@ -1106,8 +1102,6 @@
 	i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
 			     mc->last_render);
 
-	atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
-	atomic_inc(&dev->counts[_DRM_STAT_DMA]);
 	sarea_priv->last_enqueue = dev_priv->counter - 1;
 	sarea_priv->last_dispatch = (int)hw_status[5];
 
@@ -1198,12 +1192,9 @@
 
 int i810_driver_load(struct drm_device *dev, unsigned long flags)
 {
-	/* i810 has 4 more counters */
-	dev->counters += 4;
-	dev->types[6] = _DRM_STAT_IRQ;
-	dev->types[7] = _DRM_STAT_PRIMARY;
-	dev->types[8] = _DRM_STAT_SECONDARY;
-	dev->types[9] = _DRM_STAT_DMA;
+	/* Our userspace depends upon the agp mapping support. */
+	if (!dev->agp)
+		return -EINVAL;
 
 	pci_set_master(dev->pdev);
 
@@ -1224,9 +1215,9 @@
 	}
 
 	if (file_priv->master && file_priv->master->lock.hw_lock) {
-		drm_idlelock_take(&file_priv->master->lock);
+		drm_legacy_idlelock_take(&file_priv->master->lock);
 		i810_driver_reclaim_buffers(dev, file_priv);
-		drm_idlelock_release(&file_priv->master->lock);
+		drm_legacy_idlelock_release(&file_priv->master->lock);
 	} else {
 		/* master disappeared, clean up stuff anyway and hope nothing
 		 * goes wrong */
@@ -1241,7 +1232,7 @@
 	return 0;
 }
 
-struct drm_ioctl_desc i810_ioctls[] = {
+const struct drm_ioctl_desc i810_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
 	DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
 	DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
@@ -1259,7 +1250,7 @@
 	DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
 };
 
-int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
+int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);
 
 /**
  * Determine if the device really is AGP or not.