1131abc56SHans de Goede // SPDX-License-Identifier: MIT 2131abc56SHans de Goede /* 3131abc56SHans de Goede * Copyright (C) 2013-2017 Oracle Corporation 4131abc56SHans de Goede * This file is based on ast_ttm.c 5131abc56SHans de Goede * Copyright 2012 Red Hat Inc. 6131abc56SHans de Goede * Authors: Dave Airlie <airlied@redhat.com> 7131abc56SHans de Goede * Michael Thayer <michael.thayer@oracle.com> 8131abc56SHans de Goede */ 9131abc56SHans de Goede #include <linux/pci.h> 10131abc56SHans de Goede #include <drm/drm_file.h> 11131abc56SHans de Goede #include "vbox_drv.h" 12131abc56SHans de Goede vbox_mm_init(struct vbox_private * vbox)13131abc56SHans de Goedeint vbox_mm_init(struct vbox_private *vbox) 14131abc56SHans de Goede { 15131abc56SHans de Goede int ret; 16*c6dc899eSThomas Zimmermann resource_size_t base, size; 17131abc56SHans de Goede struct drm_device *dev = &vbox->ddev; 1856492fe9SThomas Zimmermann struct pci_dev *pdev = to_pci_dev(dev->dev); 19131abc56SHans de Goede 20*c6dc899eSThomas Zimmermann base = pci_resource_start(pdev, 0); 21*c6dc899eSThomas Zimmermann size = pci_resource_len(pdev, 0); 22*c6dc899eSThomas Zimmermann 23*c6dc899eSThomas Zimmermann /* Don't fail on errors, but performance might be reduced. */ 24*c6dc899eSThomas Zimmermann devm_arch_phys_wc_add(&pdev->dev, base, size); 25*c6dc899eSThomas Zimmermann 26*c6dc899eSThomas Zimmermann ret = drmm_vram_helper_init(dev, base, vbox->available_vram_size); 27429fc6f9STian Tao if (ret) { 2894065bf5SThomas Zimmermann DRM_ERROR("Error initializing VRAM MM; %d\n", ret); 29131abc56SHans de Goede return ret; 30131abc56SHans de Goede } 31131abc56SHans de Goede 32131abc56SHans de Goede return 0; 33131abc56SHans de Goede } 34