Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA, |
| 3 | * All Rights Reserved. |
| 4 | * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA, |
| 5 | * All Rights Reserved. |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 8 | * copy of this software and associated documentation files (the "Software"), |
| 9 | * to deal in the Software without restriction, including without limitation |
| 10 | * the rights to use, copy, modify, merge, publish, distribute, sub license, |
| 11 | * and/or sell copies of the Software, and to permit persons to whom the |
| 12 | * Software is furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice (including the |
| 15 | * next paragraph) shall be included in all copies or substantial portions |
| 16 | * of the Software. |
| 17 | * |
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 25 | */ |
| 26 | |
| 27 | #include "drmP.h" |
| 28 | |
| 29 | #include "nouveau_drv.h" |
| 30 | |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 31 | int |
| 32 | nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma) |
| 33 | { |
| 34 | struct drm_file *file_priv = filp->private_data; |
| 35 | struct drm_nouveau_private *dev_priv = |
| 36 | file_priv->minor->dev->dev_private; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 37 | |
| 38 | if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) |
| 39 | return drm_mmap(filp, vma); |
| 40 | |
Ben Skeggs | 1959ca8 | 2010-01-04 15:52:20 +1000 | [diff] [blame] | 41 | return ttm_bo_mmap(filp, vma, &dev_priv->ttm.bdev); |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 42 | } |
| 43 | |
| 44 | static int |
| 45 | nouveau_ttm_mem_global_init(struct ttm_global_reference *ref) |
| 46 | { |
| 47 | return ttm_mem_global_init(ref->object); |
| 48 | } |
| 49 | |
| 50 | static void |
| 51 | nouveau_ttm_mem_global_release(struct ttm_global_reference *ref) |
| 52 | { |
| 53 | ttm_mem_global_release(ref->object); |
| 54 | } |
| 55 | |
| 56 | int |
| 57 | nouveau_ttm_global_init(struct drm_nouveau_private *dev_priv) |
| 58 | { |
| 59 | struct ttm_global_reference *global_ref; |
| 60 | int ret; |
| 61 | |
| 62 | global_ref = &dev_priv->ttm.mem_global_ref; |
| 63 | global_ref->global_type = TTM_GLOBAL_TTM_MEM; |
| 64 | global_ref->size = sizeof(struct ttm_mem_global); |
| 65 | global_ref->init = &nouveau_ttm_mem_global_init; |
| 66 | global_ref->release = &nouveau_ttm_mem_global_release; |
| 67 | |
| 68 | ret = ttm_global_item_ref(global_ref); |
| 69 | if (unlikely(ret != 0)) { |
| 70 | DRM_ERROR("Failed setting up TTM memory accounting\n"); |
| 71 | dev_priv->ttm.mem_global_ref.release = NULL; |
| 72 | return ret; |
| 73 | } |
| 74 | |
| 75 | dev_priv->ttm.bo_global_ref.mem_glob = global_ref->object; |
| 76 | global_ref = &dev_priv->ttm.bo_global_ref.ref; |
| 77 | global_ref->global_type = TTM_GLOBAL_TTM_BO; |
| 78 | global_ref->size = sizeof(struct ttm_bo_global); |
| 79 | global_ref->init = &ttm_bo_global_init; |
| 80 | global_ref->release = &ttm_bo_global_release; |
| 81 | |
| 82 | ret = ttm_global_item_ref(global_ref); |
| 83 | if (unlikely(ret != 0)) { |
| 84 | DRM_ERROR("Failed setting up TTM BO subsystem\n"); |
| 85 | ttm_global_item_unref(&dev_priv->ttm.mem_global_ref); |
| 86 | dev_priv->ttm.mem_global_ref.release = NULL; |
| 87 | return ret; |
| 88 | } |
| 89 | |
| 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | void |
| 94 | nouveau_ttm_global_release(struct drm_nouveau_private *dev_priv) |
| 95 | { |
| 96 | if (dev_priv->ttm.mem_global_ref.release == NULL) |
| 97 | return; |
| 98 | |
| 99 | ttm_global_item_unref(&dev_priv->ttm.bo_global_ref.ref); |
| 100 | ttm_global_item_unref(&dev_priv->ttm.mem_global_ref); |
| 101 | dev_priv->ttm.mem_global_ref.release = NULL; |
| 102 | } |
| 103 | |