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1 | /************************************************************************** |
1 | /************************************************************************** |
2 | * |
2 | * |
3 | * Copyright 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX. USA. |
3 | * Copyright 2006-2008 Tungsten Graphics, Inc., Cedar Park, TX. USA. |
4 | * All Rights Reserved. |
4 | * All Rights Reserved. |
5 | * |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the |
7 | * copy of this software and associated documentation files (the |
8 | * "Software"), to deal in the Software without restriction, including |
8 | * "Software"), to deal in the Software without restriction, including |
9 | * without limitation the rights to use, copy, modify, merge, publish, |
9 | * without limitation the rights to use, copy, modify, merge, publish, |
10 | * distribute, sub license, and/or sell copies of the Software, and to |
10 | * distribute, sub license, and/or sell copies of the Software, and to |
11 | * permit persons to whom the Software is furnished to do so, subject to |
11 | * permit persons to whom the Software is furnished to do so, subject to |
12 | * the following conditions: |
12 | * the following conditions: |
13 | * |
13 | * |
14 | * The above copyright notice and this permission notice (including the |
14 | * The above copyright notice and this permission notice (including the |
15 | * next paragraph) shall be included in all copies or substantial portions |
15 | * next paragraph) shall be included in all copies or substantial portions |
16 | * of the Software. |
16 | * of the Software. |
17 | * |
17 | * |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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, |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
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, |
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 |
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 |
23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
25 | * |
25 | * |
26 | * |
26 | * |
27 | **************************************************************************/ |
27 | **************************************************************************/ |
28 | /* |
28 | /* |
29 | * Authors: |
29 | * Authors: |
30 | * Thomas Hellstrom |
30 | * Thomas Hellstrom |
31 | */ |
31 | */ |
32 | 32 | ||
33 | #ifndef _DRM_MM_H_ |
33 | #ifndef _DRM_MM_H_ |
34 | #define _DRM_MM_H_ |
34 | #define _DRM_MM_H_ |
35 | 35 | ||
36 | /* |
36 | /* |
37 | * Generic range manager structs |
37 | * Generic range manager structs |
38 | */ |
38 | */ |
39 | #include |
39 | #include |
40 | #ifdef CONFIG_DEBUG_FS |
40 | #ifdef CONFIG_DEBUG_FS |
41 | #include |
41 | #include |
42 | #endif |
42 | #endif |
43 | 43 | ||
44 | struct drm_mm_node { |
44 | struct drm_mm_node { |
45 | struct list_head node_list; |
45 | struct list_head node_list; |
46 | struct list_head hole_stack; |
46 | struct list_head hole_stack; |
47 | unsigned hole_follows : 1; |
47 | unsigned hole_follows : 1; |
48 | unsigned scanned_block : 1; |
48 | unsigned scanned_block : 1; |
49 | unsigned scanned_prev_free : 1; |
49 | unsigned scanned_prev_free : 1; |
50 | unsigned scanned_next_free : 1; |
50 | unsigned scanned_next_free : 1; |
51 | unsigned scanned_preceeds_hole : 1; |
51 | unsigned scanned_preceeds_hole : 1; |
52 | unsigned allocated : 1; |
52 | unsigned allocated : 1; |
53 | unsigned long color; |
53 | unsigned long color; |
54 | unsigned long start; |
54 | unsigned long start; |
55 | unsigned long size; |
55 | unsigned long size; |
56 | struct drm_mm *mm; |
56 | struct drm_mm *mm; |
57 | }; |
57 | }; |
58 | 58 | ||
59 | struct drm_mm { |
59 | struct drm_mm { |
60 | /* List of all memory nodes that immediately precede a free hole. */ |
60 | /* List of all memory nodes that immediately precede a free hole. */ |
61 | struct list_head hole_stack; |
61 | struct list_head hole_stack; |
62 | /* head_node.node_list is the list of all memory nodes, ordered |
62 | /* head_node.node_list is the list of all memory nodes, ordered |
63 | * according to the (increasing) start address of the memory node. */ |
63 | * according to the (increasing) start address of the memory node. */ |
64 | struct drm_mm_node head_node; |
64 | struct drm_mm_node head_node; |
65 | struct list_head unused_nodes; |
65 | struct list_head unused_nodes; |
66 | int num_unused; |
66 | int num_unused; |
67 | spinlock_t unused_lock; |
67 | spinlock_t unused_lock; |
68 | unsigned int scan_check_range : 1; |
68 | unsigned int scan_check_range : 1; |
69 | unsigned scan_alignment; |
69 | unsigned scan_alignment; |
70 | unsigned long scan_color; |
70 | unsigned long scan_color; |
71 | unsigned long scan_size; |
71 | unsigned long scan_size; |
72 | unsigned long scan_hit_start; |
72 | unsigned long scan_hit_start; |
73 | unsigned scan_hit_size; |
73 | unsigned long scan_hit_end; |
74 | unsigned scanned_blocks; |
74 | unsigned scanned_blocks; |
75 | unsigned long scan_start; |
75 | unsigned long scan_start; |
76 | unsigned long scan_end; |
76 | unsigned long scan_end; |
77 | struct drm_mm_node *prev_scanned_node; |
77 | struct drm_mm_node *prev_scanned_node; |
78 | 78 | ||
79 | void (*color_adjust)(struct drm_mm_node *node, unsigned long color, |
79 | void (*color_adjust)(struct drm_mm_node *node, unsigned long color, |
80 | unsigned long *start, unsigned long *end); |
80 | unsigned long *start, unsigned long *end); |
81 | }; |
81 | }; |
82 | 82 | ||
83 | static inline bool drm_mm_node_allocated(struct drm_mm_node *node) |
83 | static inline bool drm_mm_node_allocated(struct drm_mm_node *node) |
84 | { |
84 | { |
85 | return node->allocated; |
85 | return node->allocated; |
86 | } |
86 | } |
87 | 87 | ||
88 | static inline bool drm_mm_initialized(struct drm_mm *mm) |
88 | static inline bool drm_mm_initialized(struct drm_mm *mm) |
89 | { |
89 | { |
90 | return mm->hole_stack.next; |
90 | return mm->hole_stack.next; |
91 | } |
91 | } |
92 | #define drm_mm_for_each_node(entry, mm) list_for_each_entry(entry, \ |
92 | #define drm_mm_for_each_node(entry, mm) list_for_each_entry(entry, \ |
93 | &(mm)->head_node.node_list, \ |
93 | &(mm)->head_node.node_list, \ |
94 | node_list) |
94 | node_list) |
95 | #define drm_mm_for_each_scanned_node_reverse(entry, n, mm) \ |
95 | #define drm_mm_for_each_scanned_node_reverse(entry, n, mm) \ |
96 | for (entry = (mm)->prev_scanned_node, \ |
96 | for (entry = (mm)->prev_scanned_node, \ |
97 | next = entry ? list_entry(entry->node_list.next, \ |
97 | next = entry ? list_entry(entry->node_list.next, \ |
98 | struct drm_mm_node, node_list) : NULL; \ |
98 | struct drm_mm_node, node_list) : NULL; \ |
99 | entry != NULL; entry = next, \ |
99 | entry != NULL; entry = next, \ |
100 | next = entry ? list_entry(entry->node_list.next, \ |
100 | next = entry ? list_entry(entry->node_list.next, \ |
101 | struct drm_mm_node, node_list) : NULL) \ |
101 | struct drm_mm_node, node_list) : NULL) \ |
102 | /* |
102 | /* |
103 | * Basic range manager support (drm_mm.c) |
103 | * Basic range manager support (drm_mm.c) |
104 | */ |
104 | */ |
105 | extern struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node, |
105 | extern struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node, |
106 | unsigned long size, |
106 | unsigned long size, |
107 | unsigned alignment, |
107 | unsigned alignment, |
108 | unsigned long color, |
108 | unsigned long color, |
109 | int atomic); |
109 | int atomic); |
110 | extern struct drm_mm_node *drm_mm_get_block_range_generic( |
110 | extern struct drm_mm_node *drm_mm_get_block_range_generic( |
111 | struct drm_mm_node *node, |
111 | struct drm_mm_node *node, |
112 | unsigned long size, |
112 | unsigned long size, |
113 | unsigned alignment, |
113 | unsigned alignment, |
114 | unsigned long color, |
114 | unsigned long color, |
115 | unsigned long start, |
115 | unsigned long start, |
116 | unsigned long end, |
116 | unsigned long end, |
117 | int atomic); |
117 | int atomic); |
118 | static inline struct drm_mm_node *drm_mm_get_block(struct drm_mm_node *parent, |
118 | static inline struct drm_mm_node *drm_mm_get_block(struct drm_mm_node *parent, |
119 | unsigned long size, |
119 | unsigned long size, |
120 | unsigned alignment) |
120 | unsigned alignment) |
121 | { |
121 | { |
122 | return drm_mm_get_block_generic(parent, size, alignment, 0, 0); |
122 | return drm_mm_get_block_generic(parent, size, alignment, 0, 0); |
123 | } |
123 | } |
124 | static inline struct drm_mm_node *drm_mm_get_block_atomic(struct drm_mm_node *parent, |
124 | static inline struct drm_mm_node *drm_mm_get_block_atomic(struct drm_mm_node *parent, |
125 | unsigned long size, |
125 | unsigned long size, |
126 | unsigned alignment) |
126 | unsigned alignment) |
127 | { |
127 | { |
128 | return drm_mm_get_block_generic(parent, size, alignment, 0, 1); |
128 | return drm_mm_get_block_generic(parent, size, alignment, 0, 1); |
129 | } |
129 | } |
130 | static inline struct drm_mm_node *drm_mm_get_block_range( |
130 | static inline struct drm_mm_node *drm_mm_get_block_range( |
131 | struct drm_mm_node *parent, |
131 | struct drm_mm_node *parent, |
132 | unsigned long size, |
132 | unsigned long size, |
133 | unsigned alignment, |
133 | unsigned alignment, |
134 | unsigned long start, |
134 | unsigned long start, |
135 | unsigned long end) |
135 | unsigned long end) |
136 | { |
136 | { |
137 | return drm_mm_get_block_range_generic(parent, size, alignment, 0, |
137 | return drm_mm_get_block_range_generic(parent, size, alignment, 0, |
138 | start, end, 0); |
138 | start, end, 0); |
139 | } |
139 | } |
140 | static inline struct drm_mm_node *drm_mm_get_color_block_range( |
140 | static inline struct drm_mm_node *drm_mm_get_color_block_range( |
141 | struct drm_mm_node *parent, |
141 | struct drm_mm_node *parent, |
142 | unsigned long size, |
142 | unsigned long size, |
143 | unsigned alignment, |
143 | unsigned alignment, |
144 | unsigned long color, |
144 | unsigned long color, |
145 | unsigned long start, |
145 | unsigned long start, |
146 | unsigned long end) |
146 | unsigned long end) |
147 | { |
147 | { |
148 | return drm_mm_get_block_range_generic(parent, size, alignment, color, |
148 | return drm_mm_get_block_range_generic(parent, size, alignment, color, |
149 | start, end, 0); |
149 | start, end, 0); |
150 | } |
150 | } |
151 | static inline struct drm_mm_node *drm_mm_get_block_atomic_range( |
151 | static inline struct drm_mm_node *drm_mm_get_block_atomic_range( |
152 | struct drm_mm_node *parent, |
152 | struct drm_mm_node *parent, |
153 | unsigned long size, |
153 | unsigned long size, |
154 | unsigned alignment, |
154 | unsigned alignment, |
155 | unsigned long start, |
155 | unsigned long start, |
156 | unsigned long end) |
156 | unsigned long end) |
157 | { |
157 | { |
158 | return drm_mm_get_block_range_generic(parent, size, alignment, 0, |
158 | return drm_mm_get_block_range_generic(parent, size, alignment, 0, |
159 | start, end, 1); |
159 | start, end, 1); |
160 | } |
160 | } |
- | 161 | ||
161 | extern int drm_mm_insert_node(struct drm_mm *mm, struct drm_mm_node *node, |
162 | extern int drm_mm_insert_node(struct drm_mm *mm, |
- | 163 | struct drm_mm_node *node, |
|
- | 164 | unsigned long size, |
|
162 | unsigned long size, unsigned alignment); |
165 | unsigned alignment); |
163 | extern int drm_mm_insert_node_in_range(struct drm_mm *mm, |
166 | extern int drm_mm_insert_node_in_range(struct drm_mm *mm, |
164 | struct drm_mm_node *node, |
167 | struct drm_mm_node *node, |
- | 168 | unsigned long size, |
|
165 | unsigned long size, unsigned alignment, |
169 | unsigned alignment, |
166 | unsigned long start, unsigned long end); |
170 | unsigned long start, |
- | 171 | unsigned long end); |
|
- | 172 | extern int drm_mm_insert_node_generic(struct drm_mm *mm, |
|
- | 173 | struct drm_mm_node *node, |
|
- | 174 | unsigned long size, |
|
- | 175 | unsigned alignment, |
|
- | 176 | unsigned long color); |
|
- | 177 | extern int drm_mm_insert_node_in_range_generic(struct drm_mm *mm, |
|
- | 178 | struct drm_mm_node *node, |
|
- | 179 | unsigned long size, |
|
- | 180 | unsigned alignment, |
|
- | 181 | unsigned long color, |
|
- | 182 | unsigned long start, |
|
- | 183 | unsigned long end); |
|
167 | extern void drm_mm_put_block(struct drm_mm_node *cur); |
184 | extern void drm_mm_put_block(struct drm_mm_node *cur); |
168 | extern void drm_mm_remove_node(struct drm_mm_node *node); |
185 | extern void drm_mm_remove_node(struct drm_mm_node *node); |
169 | extern void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new); |
186 | extern void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new); |
170 | extern struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm, |
187 | extern struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm, |
171 | unsigned long size, |
188 | unsigned long size, |
172 | unsigned alignment, |
189 | unsigned alignment, |
173 | unsigned long color, |
190 | unsigned long color, |
174 | bool best_match); |
191 | bool best_match); |
175 | extern struct drm_mm_node *drm_mm_search_free_in_range_generic( |
192 | extern struct drm_mm_node *drm_mm_search_free_in_range_generic( |
176 | const struct drm_mm *mm, |
193 | const struct drm_mm *mm, |
177 | unsigned long size, |
194 | unsigned long size, |
178 | unsigned alignment, |
195 | unsigned alignment, |
179 | unsigned long color, |
196 | unsigned long color, |
180 | unsigned long start, |
197 | unsigned long start, |
181 | unsigned long end, |
198 | unsigned long end, |
182 | bool best_match); |
199 | bool best_match); |
183 | static inline struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, |
200 | static inline struct drm_mm_node *drm_mm_search_free(const struct drm_mm *mm, |
184 | unsigned long size, |
201 | unsigned long size, |
185 | unsigned alignment, |
202 | unsigned alignment, |
186 | bool best_match) |
203 | bool best_match) |
187 | { |
204 | { |
188 | return drm_mm_search_free_generic(mm,size, alignment, 0, best_match); |
205 | return drm_mm_search_free_generic(mm,size, alignment, 0, best_match); |
189 | } |
206 | } |
190 | static inline struct drm_mm_node *drm_mm_search_free_in_range( |
207 | static inline struct drm_mm_node *drm_mm_search_free_in_range( |
191 | const struct drm_mm *mm, |
208 | const struct drm_mm *mm, |
192 | unsigned long size, |
209 | unsigned long size, |
193 | unsigned alignment, |
210 | unsigned alignment, |
194 | unsigned long start, |
211 | unsigned long start, |
195 | unsigned long end, |
212 | unsigned long end, |
196 | bool best_match) |
213 | bool best_match) |
197 | { |
214 | { |
198 | return drm_mm_search_free_in_range_generic(mm, size, alignment, 0, |
215 | return drm_mm_search_free_in_range_generic(mm, size, alignment, 0, |
199 | start, end, best_match); |
216 | start, end, best_match); |
200 | } |
217 | } |
201 | static inline struct drm_mm_node *drm_mm_search_free_color(const struct drm_mm *mm, |
218 | static inline struct drm_mm_node *drm_mm_search_free_color(const struct drm_mm *mm, |
202 | unsigned long size, |
219 | unsigned long size, |
203 | unsigned alignment, |
220 | unsigned alignment, |
204 | unsigned long color, |
221 | unsigned long color, |
205 | bool best_match) |
222 | bool best_match) |
206 | { |
223 | { |
207 | return drm_mm_search_free_generic(mm,size, alignment, color, best_match); |
224 | return drm_mm_search_free_generic(mm,size, alignment, color, best_match); |
208 | } |
225 | } |
209 | static inline struct drm_mm_node *drm_mm_search_free_in_range_color( |
226 | static inline struct drm_mm_node *drm_mm_search_free_in_range_color( |
210 | const struct drm_mm *mm, |
227 | const struct drm_mm *mm, |
211 | unsigned long size, |
228 | unsigned long size, |
212 | unsigned alignment, |
229 | unsigned alignment, |
213 | unsigned long color, |
230 | unsigned long color, |
214 | unsigned long start, |
231 | unsigned long start, |
215 | unsigned long end, |
232 | unsigned long end, |
216 | bool best_match) |
233 | bool best_match) |
217 | { |
234 | { |
218 | return drm_mm_search_free_in_range_generic(mm, size, alignment, color, |
235 | return drm_mm_search_free_in_range_generic(mm, size, alignment, color, |
219 | start, end, best_match); |
236 | start, end, best_match); |
220 | } |
237 | } |
221 | extern int drm_mm_init(struct drm_mm *mm, |
238 | extern int drm_mm_init(struct drm_mm *mm, |
222 | unsigned long start, |
239 | unsigned long start, |
223 | unsigned long size); |
240 | unsigned long size); |
224 | extern void drm_mm_takedown(struct drm_mm *mm); |
241 | extern void drm_mm_takedown(struct drm_mm *mm); |
225 | extern int drm_mm_clean(struct drm_mm *mm); |
242 | extern int drm_mm_clean(struct drm_mm *mm); |
226 | extern int drm_mm_pre_get(struct drm_mm *mm); |
243 | extern int drm_mm_pre_get(struct drm_mm *mm); |
227 | 244 | ||
228 | static inline struct drm_mm *drm_get_mm(struct drm_mm_node *block) |
245 | static inline struct drm_mm *drm_get_mm(struct drm_mm_node *block) |
229 | { |
246 | { |
230 | return block->mm; |
247 | return block->mm; |
231 | } |
248 | } |
232 | 249 | ||
233 | void drm_mm_init_scan(struct drm_mm *mm, |
250 | void drm_mm_init_scan(struct drm_mm *mm, |
234 | unsigned long size, |
251 | unsigned long size, |
235 | unsigned alignment, |
252 | unsigned alignment, |
236 | unsigned long color); |
253 | unsigned long color); |
237 | void drm_mm_init_scan_with_range(struct drm_mm *mm, |
254 | void drm_mm_init_scan_with_range(struct drm_mm *mm, |
238 | unsigned long size, |
255 | unsigned long size, |
239 | unsigned alignment, |
256 | unsigned alignment, |
240 | unsigned long color, |
257 | unsigned long color, |
241 | unsigned long start, |
258 | unsigned long start, |
242 | unsigned long end); |
259 | unsigned long end); |
243 | int drm_mm_scan_add_block(struct drm_mm_node *node); |
260 | int drm_mm_scan_add_block(struct drm_mm_node *node); |
244 | int drm_mm_scan_remove_block(struct drm_mm_node *node); |
261 | int drm_mm_scan_remove_block(struct drm_mm_node *node); |
245 | 262 | ||
246 | extern void drm_mm_debug_table(struct drm_mm *mm, const char *prefix); |
263 | extern void drm_mm_debug_table(struct drm_mm *mm, const char *prefix); |
247 | #ifdef CONFIG_DEBUG_FS |
264 | #ifdef CONFIG_DEBUG_FS |
248 | int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm); |
265 | int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm); |
249 | #endif |
266 | #endif |
250 | 267 | ||
251 | #endif |
268 | #endif |