/* * Copyright 2012 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * */ /* * Authors: Dave Airlie <airlied@redhat.com> */ #include <linux/pci.h> #include <drm/drm_print.h> #include <drm/drm_gem_vram_helper.h> #include <drm/drm_vram_mm_helper.h> #include "ast_drv.h" int ast_mm_init(struct ast_private *ast) { struct drm_vram_mm *vmm; int ret; struct drm_device *dev = ast->dev; vmm = drm_vram_helper_alloc_mm( dev, pci_resource_start(dev->pdev, 0), ast->vram_size, &drm_gem_vram_mm_funcs); if (IS_ERR(vmm)) { ret = PTR_ERR(vmm); DRM_ERROR("Error initializing VRAM MM; %d\n", ret); return ret; } arch_io_reserve_memtype_wc(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0)); ast->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0)); return 0; } void ast_mm_fini(struct ast_private *ast) { struct drm_device *dev = ast->dev; drm_vram_helper_release_mm(dev); arch_phys_wc_del(ast->fb_mtrr); arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0), pci_resource_len(dev->pdev, 0)); } |