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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 | ||
0005cbda SR |
28 | #include <linux/slab.h> |
29 | ||
30 | #include <drm/drm_device.h> | |
31 | #include <drm/drm_file.h> | |
32 | #include <drm/drm_irq.h> | |
760285e7 | 33 | #include <drm/via_drm.h> |
0005cbda | 34 | |
22f579c6 | 35 | #include "via_drv.h" |
22f579c6 | 36 | |
ce65a44d | 37 | #define VIA_MM_ALIGN_SHIFT 4 |
58c1e85a | 38 | #define VIA_MM_ALIGN_MASK ((1 << VIA_MM_ALIGN_SHIFT) - 1) |
22f579c6 | 39 | |
977b4f6e DV |
40 | struct via_memblock { |
41 | struct drm_mm_node mm_node; | |
42 | struct list_head owner_list; | |
43 | }; | |
44 | ||
c153f45f | 45 | int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv) |
22f579c6 | 46 | { |
c153f45f | 47 | drm_via_agp_t *agp = data; |
ce65a44d | 48 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; |
22f579c6 | 49 | |
ce65a44d | 50 | mutex_lock(&dev->struct_mutex); |
977b4f6e | 51 | drm_mm_init(&dev_priv->agp_mm, 0, agp->size >> VIA_MM_ALIGN_SHIFT); |
22f579c6 | 52 | |
d40c8533 | 53 | dev_priv->agp_initialized = 1; |
c153f45f | 54 | dev_priv->agp_offset = agp->offset; |
ce65a44d | 55 | mutex_unlock(&dev->struct_mutex); |
22f579c6 | 56 | |
3e684eae | 57 | DRM_DEBUG("offset = %u, size = %u\n", agp->offset, agp->size); |
22f579c6 DA |
58 | return 0; |
59 | } | |
60 | ||
c153f45f | 61 | int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv) |
22f579c6 | 62 | { |
c153f45f | 63 | drm_via_fb_t *fb = data; |
ce65a44d | 64 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; |
22f579c6 | 65 | |
ce65a44d | 66 | mutex_lock(&dev->struct_mutex); |
977b4f6e | 67 | drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> VIA_MM_ALIGN_SHIFT); |
22f579c6 | 68 | |
d40c8533 | 69 | dev_priv->vram_initialized = 1; |
c153f45f | 70 | dev_priv->vram_offset = fb->offset; |
22f579c6 | 71 | |
ce65a44d | 72 | mutex_unlock(&dev->struct_mutex); |
3e684eae | 73 | DRM_DEBUG("offset = %u, size = %u\n", fb->offset, fb->size); |
ce65a44d TH |
74 | |
75 | return 0; | |
22f579c6 | 76 | |
22f579c6 DA |
77 | } |
78 | ||
79 | int via_final_context(struct drm_device *dev, int context) | |
b5e89ed5 | 80 | { |
22f579c6 DA |
81 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; |
82 | ||
b5e89ed5 DA |
83 | via_release_futex(dev_priv, context); |
84 | ||
22f579c6 DA |
85 | /* Linux specific until context tracking code gets ported to BSD */ |
86 | /* Last context, perform cleanup */ | |
2ffd6528 | 87 | if (list_is_singular(&dev->ctxlist)) { |
b5e89ed5 | 88 | DRM_DEBUG("Last Context\n"); |
9bfbd5cb | 89 | drm_irq_uninstall(dev); |
22f579c6 DA |
90 | via_cleanup_futex(dev_priv); |
91 | via_do_cleanup_map(dev); | |
92 | } | |
22f579c6 DA |
93 | return 1; |
94 | } | |
95 | ||
ce65a44d TH |
96 | void via_lastclose(struct drm_device *dev) |
97 | { | |
98 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; | |
99 | ||
100 | if (!dev_priv) | |
101 | return; | |
102 | ||
103 | mutex_lock(&dev->struct_mutex); | |
977b4f6e DV |
104 | if (dev_priv->vram_initialized) { |
105 | drm_mm_takedown(&dev_priv->vram_mm); | |
106 | dev_priv->vram_initialized = 0; | |
107 | } | |
108 | if (dev_priv->agp_initialized) { | |
109 | drm_mm_takedown(&dev_priv->agp_mm); | |
110 | dev_priv->agp_initialized = 0; | |
111 | } | |
ce65a44d | 112 | mutex_unlock(&dev->struct_mutex); |
bc5f4523 | 113 | } |
ce65a44d | 114 | |
c153f45f | 115 | int via_mem_alloc(struct drm_device *dev, void *data, |
c828e204 | 116 | struct drm_file *file) |
22f579c6 | 117 | { |
c153f45f | 118 | drm_via_mem_t *mem = data; |
77ee8f38 | 119 | int retval = 0, user_key; |
977b4f6e | 120 | struct via_memblock *item; |
ce65a44d | 121 | drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; |
c828e204 | 122 | struct via_file_private *file_priv = file->driver_priv; |
ce65a44d | 123 | unsigned long tmpSize; |
22f579c6 | 124 | |
c153f45f | 125 | if (mem->type > VIA_MEM_AGP) { |
ce65a44d | 126 | DRM_ERROR("Unknown memory type allocation\n"); |
20caafa6 | 127 | return -EINVAL; |
22f579c6 | 128 | } |
ce65a44d | 129 | mutex_lock(&dev->struct_mutex); |
c153f45f | 130 | if (0 == ((mem->type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized : |
ce65a44d TH |
131 | dev_priv->agp_initialized)) { |
132 | DRM_ERROR | |
133 | ("Attempt to allocate from uninitialized memory manager.\n"); | |
134 | mutex_unlock(&dev->struct_mutex); | |
20caafa6 | 135 | return -EINVAL; |
22f579c6 DA |
136 | } |
137 | ||
977b4f6e | 138 | item = kzalloc(sizeof(*item), GFP_KERNEL); |
77ee8f38 DV |
139 | if (!item) { |
140 | retval = -ENOMEM; | |
141 | goto fail_alloc; | |
142 | } | |
c828e204 | 143 | |
977b4f6e DV |
144 | tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT; |
145 | if (mem->type == VIA_MEM_AGP) | |
146 | retval = drm_mm_insert_node(&dev_priv->agp_mm, | |
147 | &item->mm_node, | |
4e64e553 | 148 | tmpSize); |
977b4f6e DV |
149 | else |
150 | retval = drm_mm_insert_node(&dev_priv->vram_mm, | |
151 | &item->mm_node, | |
4e64e553 | 152 | tmpSize); |
977b4f6e DV |
153 | if (retval) |
154 | goto fail_alloc; | |
155 | ||
36888db2 TH |
156 | retval = idr_alloc(&dev_priv->object_idr, item, 1, 0, GFP_KERNEL); |
157 | if (retval < 0) | |
77ee8f38 | 158 | goto fail_idr; |
36888db2 | 159 | user_key = retval; |
77ee8f38 DV |
160 | |
161 | list_add(&item->owner_list, &file_priv->obj_list); | |
c828e204 | 162 | mutex_unlock(&dev->struct_mutex); |
22f579c6 | 163 | |
77ee8f38 DV |
164 | mem->offset = ((mem->type == VIA_MEM_VIDEO) ? |
165 | dev_priv->vram_offset : dev_priv->agp_offset) + | |
977b4f6e | 166 | ((item->mm_node.start) << VIA_MM_ALIGN_SHIFT); |
77ee8f38 DV |
167 | mem->index = user_key; |
168 | ||
169 | return 0; | |
170 | ||
171 | fail_idr: | |
977b4f6e | 172 | drm_mm_remove_node(&item->mm_node); |
77ee8f38 | 173 | fail_alloc: |
977b4f6e | 174 | kfree(item); |
77ee8f38 DV |
175 | mutex_unlock(&dev->struct_mutex); |
176 | ||
177 | mem->offset = 0; | |
178 | mem->size = 0; | |
179 | mem->index = 0; | |
180 | DRM_DEBUG("Video memory allocation failed\n"); | |
181 | ||
22f579c6 DA |
182 | return retval; |
183 | } | |
184 | ||
c153f45f | 185 | int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv) |
22f579c6 | 186 | { |
ce65a44d | 187 | drm_via_private_t *dev_priv = dev->dev_private; |
c153f45f | 188 | drm_via_mem_t *mem = data; |
977b4f6e | 189 | struct via_memblock *obj; |
22f579c6 | 190 | |
ce65a44d | 191 | mutex_lock(&dev->struct_mutex); |
77ee8f38 DV |
192 | obj = idr_find(&dev_priv->object_idr, mem->index); |
193 | if (obj == NULL) { | |
194 | mutex_unlock(&dev->struct_mutex); | |
195 | return -EINVAL; | |
196 | } | |
197 | ||
198 | idr_remove(&dev_priv->object_idr, mem->index); | |
977b4f6e DV |
199 | list_del(&obj->owner_list); |
200 | drm_mm_remove_node(&obj->mm_node); | |
201 | kfree(obj); | |
ce65a44d | 202 | mutex_unlock(&dev->struct_mutex); |
77ee8f38 | 203 | |
c153f45f | 204 | DRM_DEBUG("free = 0x%lx\n", mem->index); |
22f579c6 | 205 | |
b5215ef1 | 206 | return 0; |
22f579c6 DA |
207 | } |
208 | ||
22f579c6 | 209 | |
58c1e85a | 210 | void via_reclaim_buffers_locked(struct drm_device *dev, |
c828e204 | 211 | struct drm_file *file) |
22f579c6 | 212 | { |
c828e204 | 213 | struct via_file_private *file_priv = file->driver_priv; |
977b4f6e | 214 | struct via_memblock *entry, *next; |
22f579c6 | 215 | |
95c081c1 | 216 | if (!(dev->master && file->master->lock.hw_lock)) |
834859c3 DV |
217 | return; |
218 | ||
bb6d822e | 219 | drm_legacy_idlelock_take(&file->master->lock); |
834859c3 | 220 | |
ce65a44d | 221 | mutex_lock(&dev->struct_mutex); |
c828e204 | 222 | if (list_empty(&file_priv->obj_list)) { |
ce65a44d | 223 | mutex_unlock(&dev->struct_mutex); |
bb6d822e | 224 | drm_legacy_idlelock_release(&file->master->lock); |
834859c3 | 225 | |
ce65a44d | 226 | return; |
22f579c6 DA |
227 | } |
228 | ||
834859c3 | 229 | via_driver_dma_quiescent(dev); |
22f579c6 | 230 | |
c828e204 DV |
231 | list_for_each_entry_safe(entry, next, &file_priv->obj_list, |
232 | owner_list) { | |
977b4f6e DV |
233 | list_del(&entry->owner_list); |
234 | drm_mm_remove_node(&entry->mm_node); | |
235 | kfree(entry); | |
c828e204 | 236 | } |
ce65a44d | 237 | mutex_unlock(&dev->struct_mutex); |
834859c3 | 238 | |
bb6d822e | 239 | drm_legacy_idlelock_release(&file->master->lock); |
834859c3 | 240 | |
ce65a44d | 241 | return; |
22f579c6 | 242 | } |