Merge series "Use raw spinlocks in the ls-extirq driver" from Vladimir Oltean <vladim...
[linux-2.6-microblaze.git] / drivers / gpu / drm / vboxvideo / vbox_ttm.c
1 // SPDX-License-Identifier: MIT
2 /*
3  * Copyright (C) 2013-2017 Oracle Corporation
4  * This file is based on ast_ttm.c
5  * Copyright 2012 Red Hat Inc.
6  * Authors: Dave Airlie <airlied@redhat.com>
7  *          Michael Thayer <michael.thayer@oracle.com>
8  */
9 #include <linux/pci.h>
10 #include <drm/drm_file.h>
11 #include "vbox_drv.h"
12
13 int vbox_mm_init(struct vbox_private *vbox)
14 {
15         int ret;
16         struct drm_device *dev = &vbox->ddev;
17         struct pci_dev *pdev = to_pci_dev(dev->dev);
18
19         ret = drmm_vram_helper_init(dev, pci_resource_start(pdev, 0),
20                                        vbox->available_vram_size);
21         if (ret) {
22                 DRM_ERROR("Error initializing VRAM MM; %d\n", ret);
23                 return ret;
24         }
25
26         vbox->fb_mtrr = arch_phys_wc_add(pci_resource_start(pdev, 0),
27                                          pci_resource_len(pdev, 0));
28         return 0;
29 }
30
31 void vbox_mm_fini(struct vbox_private *vbox)
32 {
33         arch_phys_wc_del(vbox->fb_mtrr);
34 }