// SPDX-License-Identifier: MIT /* * Copyright (C) 2013-2017 Oracle Corporation * This file is based on ast_ttm.c * Copyright 2012 Red Hat Inc. * Authors: Dave Airlie <airlied@redhat.com> * Michael Thayer <michael.thayer@oracle.com> */ #include <linux/pci.h> #include <drm/drm_file.h> #include "vbox_drv.h" int vbox_mm_init(struct vbox_private *vbox) { int ret; resource_size_t base, size; struct drm_device *dev = &vbox->ddev; struct pci_dev *pdev = to_pci_dev(dev->dev); base = pci_resource_start(pdev, 0); size = pci_resource_len(pdev, 0); /* Don't fail on errors, but performance might be reduced. */ devm_arch_phys_wc_add(&pdev->dev, base, size); ret = drmm_vram_helper_init(dev, base, vbox->available_vram_size); if (ret) { DRM_ERROR("Error initializing VRAM MM; %d\n", ret); return ret; } return 0; }