2 * Copyright 2012 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
15 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
17 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
18 * USE OR OTHER DEALINGS IN THE SOFTWARE.
20 * The above copyright notice and this permission notice (including the
21 * next paragraph) shall be included in all copies or substantial portions
26 * Authors: Dave Airlie <airlied@redhat.com>
29 #include <linux/pci.h>
31 #include <drm/drm_print.h>
32 #include <drm/drm_gem_vram_helper.h>
36 int ast_mm_init(struct ast_private *ast)
38 struct drm_vram_mm *vmm;
40 struct drm_device *dev = ast->dev;
42 vmm = drm_vram_helper_alloc_mm(
43 dev, pci_resource_start(dev->pdev, 0),
47 DRM_ERROR("Error initializing VRAM MM; %d\n", ret);
51 arch_io_reserve_memtype_wc(pci_resource_start(dev->pdev, 0),
52 pci_resource_len(dev->pdev, 0));
53 ast->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
54 pci_resource_len(dev->pdev, 0));
59 void ast_mm_fini(struct ast_private *ast)
61 struct drm_device *dev = ast->dev;
63 drm_vram_helper_release_mm(dev);
65 arch_phys_wc_del(ast->fb_mtrr);
66 arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0),
67 pci_resource_len(dev->pdev, 0));