Commit | Line | Data |
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22f579c6 | 1 | /* |
ce65a44d TH |
2 | * Copyright 2006 Tungsten Graphics Inc., Bismarck, ND., USA. |
3 | * All rights reserved. | |
22f579c6 DA |
4 | * |
5 | * Permission is hereby granted, free of charge, to any person obtaining a | |
6 | * copy of this software and associated documentation files (the "Software"), | |
7 | * to deal in the Software without restriction, including without limitation | |
8 | * the rights to use, copy, modify, merge, publish, distribute, sub license, | |
9 | * and/or sell copies of the Software, and to permit persons to whom the | |
10 | * Software is furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice (including the | |
13 | * next paragraph) shall be included in all copies or substantial portions | |
14 | * of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
ce65a44d TH |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, |
20 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
22f579c6 DA |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
22 | * DEALINGS IN THE SOFTWARE. | |
23 | */ | |
ce65a44d | 24 | /* |
96de0e25 | 25 | * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com> |
ce65a44d TH |
26 | */ |
27 | ||
760285e7 DH |
28 | #include <drm/drmP.h> |
29 | #include <drm/via_drm.h> | |
22f579c6 | 30 | #include "via_drv.h" |
22f579c6 | 31 | |
ce65a44d | 32 | #define VIA_MM_ALIGN_SHIFT 4 |
58c1e85a | 33 | #define VIA_MM_ALIGN_MASK ((1 << VIA_MM_ALIGN_SHIFT) - 1) |
22f579c6 | 34 | |
977b4f6e DV |
35 | struct via_memblock { |
36 | struct drm_mm_node mm_node; | |
37 | struct list_head owner_list; | |
38 | }; | |
39 | ||
c153f45f | 40 | int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv) |
22f579c6 | 41 | { |
c153f45f | 42 | drm_via_agp_t *agp = data; |
ce65a44d | 43 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; |
22f579c6 | 44 | |
ce65a44d | 45 | mutex_lock(&dev->struct_mutex); |
977b4f6e | 46 | drm_mm_init(&dev_priv->agp_mm, 0, agp->size >> VIA_MM_ALIGN_SHIFT); |
22f579c6 | 47 | |
d40c8533 | 48 | dev_priv->agp_initialized = 1; |
c153f45f | 49 | dev_priv->agp_offset = agp->offset; |
ce65a44d | 50 | mutex_unlock(&dev->struct_mutex); |
22f579c6 | 51 | |
3e684eae | 52 | DRM_DEBUG("offset = %u, size = %u\n", agp->offset, agp->size); |
22f579c6 DA |
53 | return 0; |
54 | } | |
55 | ||
c153f45f | 56 | int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv) |
22f579c6 | 57 | { |
c153f45f | 58 | drm_via_fb_t *fb = data; |
ce65a44d | 59 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; |
22f579c6 | 60 | |
ce65a44d | 61 | mutex_lock(&dev->struct_mutex); |
977b4f6e | 62 | drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> VIA_MM_ALIGN_SHIFT); |
22f579c6 | 63 | |
d40c8533 | 64 | dev_priv->vram_initialized = 1; |
c153f45f | 65 | dev_priv->vram_offset = fb->offset; |
22f579c6 | 66 | |
ce65a44d | 67 | mutex_unlock(&dev->struct_mutex); |
3e684eae | 68 | DRM_DEBUG("offset = %u, size = %u\n", fb->offset, fb->size); |
ce65a44d TH |
69 | |
70 | return 0; | |
22f579c6 | 71 | |
22f579c6 DA |
72 | } |
73 | ||
74 | int via_final_context(struct drm_device *dev, int context) | |
b5e89ed5 | 75 | { |
22f579c6 DA |
76 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; |
77 | ||
b5e89ed5 DA |
78 | via_release_futex(dev_priv, context); |
79 | ||
22f579c6 DA |
80 | /* Linux specific until context tracking code gets ported to BSD */ |
81 | /* Last context, perform cleanup */ | |
82 | if (dev->ctx_count == 1 && dev->dev_private) { | |
b5e89ed5 | 83 | DRM_DEBUG("Last Context\n"); |
9bfbd5cb | 84 | drm_irq_uninstall(dev); |
22f579c6 DA |
85 | via_cleanup_futex(dev_priv); |
86 | via_do_cleanup_map(dev); | |
87 | } | |
22f579c6 DA |
88 | return 1; |
89 | } | |
90 | ||
ce65a44d TH |
91 | void via_lastclose(struct drm_device *dev) |
92 | { | |
93 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; | |
94 | ||
95 | if (!dev_priv) | |
96 | return; | |
97 | ||
98 | mutex_lock(&dev->struct_mutex); | |
977b4f6e DV |
99 | if (dev_priv->vram_initialized) { |
100 | drm_mm_takedown(&dev_priv->vram_mm); | |
101 | dev_priv->vram_initialized = 0; | |
102 | } | |
103 | if (dev_priv->agp_initialized) { | |
104 | drm_mm_takedown(&dev_priv->agp_mm); | |
105 | dev_priv->agp_initialized = 0; | |
106 | } | |
ce65a44d | 107 | mutex_unlock(&dev->struct_mutex); |
bc5f4523 | 108 | } |
ce65a44d | 109 | |
c153f45f | 110 | int via_mem_alloc(struct drm_device *dev, void *data, |
c828e204 | 111 | struct drm_file *file) |
22f579c6 | 112 | { |
c153f45f | 113 | drm_via_mem_t *mem = data; |
77ee8f38 | 114 | int retval = 0, user_key; |
977b4f6e | 115 | struct via_memblock *item; |
ce65a44d | 116 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; |
c828e204 | 117 | struct via_file_private *file_priv = file->driver_priv; |
ce65a44d | 118 | unsigned long tmpSize; |
22f579c6 | 119 | |
c153f45f | 120 | if (mem->type > VIA_MEM_AGP) { |
ce65a44d | 121 | DRM_ERROR("Unknown memory type allocation\n"); |
20caafa6 | 122 | return -EINVAL; |
22f579c6 | 123 | } |
ce65a44d | 124 | mutex_lock(&dev->struct_mutex); |
c153f45f | 125 | if (0 == ((mem->type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized : |
ce65a44d TH |
126 | dev_priv->agp_initialized)) { |
127 | DRM_ERROR | |
128 | ("Attempt to allocate from uninitialized memory manager.\n"); | |
129 | mutex_unlock(&dev->struct_mutex); | |
20caafa6 | 130 | return -EINVAL; |
22f579c6 DA |
131 | } |
132 | ||
977b4f6e | 133 | item = kzalloc(sizeof(*item), GFP_KERNEL); |
77ee8f38 DV |
134 | if (!item) { |
135 | retval = -ENOMEM; | |
136 | goto fail_alloc; | |
137 | } | |
c828e204 | 138 | |
977b4f6e DV |
139 | tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT; |
140 | if (mem->type == VIA_MEM_AGP) | |
141 | retval = drm_mm_insert_node(&dev_priv->agp_mm, | |
142 | &item->mm_node, | |
143 | tmpSize, 0); | |
144 | else | |
145 | retval = drm_mm_insert_node(&dev_priv->vram_mm, | |
146 | &item->mm_node, | |
147 | tmpSize, 0); | |
148 | if (retval) | |
149 | goto fail_alloc; | |
150 | ||
77ee8f38 DV |
151 | again: |
152 | if (idr_pre_get(&dev_priv->object_idr, GFP_KERNEL) == 0) { | |
20caafa6 | 153 | retval = -ENOMEM; |
77ee8f38 | 154 | goto fail_idr; |
22f579c6 | 155 | } |
77ee8f38 DV |
156 | |
157 | retval = idr_get_new_above(&dev_priv->object_idr, item, 1, &user_key); | |
158 | if (retval == -EAGAIN) | |
159 | goto again; | |
160 | if (retval) | |
161 | goto fail_idr; | |
162 | ||
163 | list_add(&item->owner_list, &file_priv->obj_list); | |
c828e204 | 164 | mutex_unlock(&dev->struct_mutex); |
22f579c6 | 165 | |
77ee8f38 DV |
166 | mem->offset = ((mem->type == VIA_MEM_VIDEO) ? |
167 | dev_priv->vram_offset : dev_priv->agp_offset) + | |
977b4f6e | 168 | ((item->mm_node.start) << VIA_MM_ALIGN_SHIFT); |
77ee8f38 DV |
169 | mem->index = user_key; |
170 | ||
171 | return 0; | |
172 | ||
173 | fail_idr: | |
977b4f6e | 174 | drm_mm_remove_node(&item->mm_node); |
77ee8f38 | 175 | fail_alloc: |
977b4f6e | 176 | kfree(item); |
77ee8f38 DV |
177 | mutex_unlock(&dev->struct_mutex); |
178 | ||
179 | mem->offset = 0; | |
180 | mem->size = 0; | |
181 | mem->index = 0; | |
182 | DRM_DEBUG("Video memory allocation failed\n"); | |
183 | ||
22f579c6 DA |
184 | return retval; |
185 | } | |
186 | ||
c153f45f | 187 | int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv) |
22f579c6 | 188 | { |
ce65a44d | 189 | drm_via_private_t *dev_priv = dev->dev_private; |
c153f45f | 190 | drm_via_mem_t *mem = data; |
977b4f6e | 191 | struct via_memblock *obj; |
22f579c6 | 192 | |
ce65a44d | 193 | mutex_lock(&dev->struct_mutex); |
77ee8f38 DV |
194 | obj = idr_find(&dev_priv->object_idr, mem->index); |
195 | if (obj == NULL) { | |
196 | mutex_unlock(&dev->struct_mutex); | |
197 | return -EINVAL; | |
198 | } | |
199 | ||
200 | idr_remove(&dev_priv->object_idr, mem->index); | |
977b4f6e DV |
201 | list_del(&obj->owner_list); |
202 | drm_mm_remove_node(&obj->mm_node); | |
203 | kfree(obj); | |
ce65a44d | 204 | mutex_unlock(&dev->struct_mutex); |
77ee8f38 | 205 | |
c153f45f | 206 | DRM_DEBUG("free = 0x%lx\n", mem->index); |
22f579c6 | 207 | |
b5215ef1 | 208 | return 0; |
22f579c6 DA |
209 | } |
210 | ||
22f579c6 | 211 | |
58c1e85a | 212 | void via_reclaim_buffers_locked(struct drm_device *dev, |
c828e204 | 213 | struct drm_file *file) |
22f579c6 | 214 | { |
c828e204 | 215 | struct via_file_private *file_priv = file->driver_priv; |
977b4f6e | 216 | struct via_memblock *entry, *next; |
22f579c6 | 217 | |
834859c3 DV |
218 | if (!(file->minor->master && file->master->lock.hw_lock)) |
219 | return; | |
220 | ||
221 | drm_idlelock_take(&file->master->lock); | |
222 | ||
ce65a44d | 223 | mutex_lock(&dev->struct_mutex); |
c828e204 | 224 | if (list_empty(&file_priv->obj_list)) { |
ce65a44d | 225 | mutex_unlock(&dev->struct_mutex); |
834859c3 DV |
226 | drm_idlelock_release(&file->master->lock); |
227 | ||
ce65a44d | 228 | return; |
22f579c6 DA |
229 | } |
230 | ||
834859c3 | 231 | via_driver_dma_quiescent(dev); |
22f579c6 | 232 | |
c828e204 DV |
233 | list_for_each_entry_safe(entry, next, &file_priv->obj_list, |
234 | owner_list) { | |
977b4f6e DV |
235 | list_del(&entry->owner_list); |
236 | drm_mm_remove_node(&entry->mm_node); | |
237 | kfree(entry); | |
c828e204 | 238 | } |
ce65a44d | 239 | mutex_unlock(&dev->struct_mutex); |
834859c3 DV |
240 | |
241 | drm_idlelock_release(&file->master->lock); | |
242 | ||
ce65a44d | 243 | return; |
22f579c6 | 244 | } |