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1da177e4 LT |
1 | /* |
2 | * AGPGART | |
3 | * Copyright (C) 2004 Silicon Graphics, Inc. | |
4 | * Copyright (C) 2002-2004 Dave Jones | |
5 | * Copyright (C) 1999 Jeff Hartmann | |
6 | * Copyright (C) 1999 Precision Insight, Inc. | |
7 | * Copyright (C) 1999 Xi Graphics, Inc. | |
8 | * | |
9 | * Permission is hereby granted, free of charge, to any person obtaining a | |
10 | * copy of this software and associated documentation files (the "Software"), | |
11 | * to deal in the Software without restriction, including without limitation | |
12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
13 | * and/or sell copies of the Software, and to permit persons to whom the | |
14 | * Software is furnished to do so, subject to the following conditions: | |
15 | * | |
16 | * The above copyright notice and this permission notice shall be included | |
17 | * in all copies or substantial portions of the Software. | |
18 | * | |
19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
6a92a4e0 DJ |
22 | * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, |
23 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
24 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE | |
1da177e4 LT |
25 | * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
26 | * | |
27 | */ | |
28 | ||
29 | #ifndef _AGP_BACKEND_PRIV_H | |
30 | #define _AGP_BACKEND_PRIV_H 1 | |
31 | ||
32 | #include <asm/agp.h> /* for flush_agp_cache() */ | |
33 | ||
34 | #define PFX "agpgart: " | |
35 | ||
36 | //#define AGP_DEBUG 1 | |
37 | #ifdef AGP_DEBUG | |
38 | #define DBG(x,y...) printk (KERN_DEBUG PFX "%s: " x "\n", __FUNCTION__ , ## y) | |
39 | #else | |
40 | #define DBG(x,y...) do { } while (0) | |
41 | #endif | |
42 | ||
43 | extern struct agp_bridge_data *agp_bridge; | |
44 | ||
45 | enum aper_size_type { | |
46 | U8_APER_SIZE, | |
47 | U16_APER_SIZE, | |
48 | U32_APER_SIZE, | |
49 | LVL2_APER_SIZE, | |
50 | FIXED_APER_SIZE | |
51 | }; | |
52 | ||
53 | struct gatt_mask { | |
54 | unsigned long mask; | |
55 | u32 type; | |
6a92a4e0 | 56 | /* totally device specific, for integrated chipsets that |
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57 | * might have different types of memory masks. For other |
58 | * devices this will probably be ignored */ | |
59 | }; | |
60 | ||
61 | struct aper_size_info_8 { | |
62 | int size; | |
63 | int num_entries; | |
64 | int page_order; | |
65 | u8 size_value; | |
66 | }; | |
67 | ||
68 | struct aper_size_info_16 { | |
69 | int size; | |
70 | int num_entries; | |
71 | int page_order; | |
72 | u16 size_value; | |
73 | }; | |
74 | ||
75 | struct aper_size_info_32 { | |
76 | int size; | |
77 | int num_entries; | |
78 | int page_order; | |
79 | u32 size_value; | |
80 | }; | |
81 | ||
82 | struct aper_size_info_lvl2 { | |
83 | int size; | |
84 | int num_entries; | |
85 | u32 size_value; | |
86 | }; | |
87 | ||
88 | struct aper_size_info_fixed { | |
89 | int size; | |
90 | int num_entries; | |
91 | int page_order; | |
92 | }; | |
93 | ||
94 | struct agp_bridge_driver { | |
95 | struct module *owner; | |
96 | void *aperture_sizes; | |
97 | int num_aperture_sizes; | |
98 | enum aper_size_type size_type; | |
99 | int cant_use_aperture; | |
100 | int needs_scratch_page; | |
101 | struct gatt_mask *masks; | |
102 | int (*fetch_size)(void); | |
103 | int (*configure)(void); | |
104 | void (*agp_enable)(struct agp_bridge_data *, u32); | |
105 | void (*cleanup)(void); | |
106 | void (*tlb_flush)(struct agp_memory *); | |
6a92a4e0 | 107 | unsigned long (*mask_memory)(struct agp_bridge_data *, unsigned long, int); |
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108 | void (*cache_flush)(void); |
109 | int (*create_gatt_table)(struct agp_bridge_data *); | |
110 | int (*free_gatt_table)(struct agp_bridge_data *); | |
111 | int (*insert_memory)(struct agp_memory *, off_t, int); | |
112 | int (*remove_memory)(struct agp_memory *, off_t, int); | |
113 | struct agp_memory *(*alloc_by_type) (size_t, int); | |
114 | void (*free_by_type)(struct agp_memory *); | |
115 | void *(*agp_alloc_page)(struct agp_bridge_data *); | |
116 | void (*agp_destroy_page)(void *); | |
117 | }; | |
118 | ||
119 | struct agp_bridge_data { | |
120 | struct agp_version *version; | |
121 | struct agp_bridge_driver *driver; | |
122 | struct vm_operations_struct *vm_ops; | |
123 | void *previous_size; | |
124 | void *current_size; | |
125 | void *dev_private_data; | |
126 | struct pci_dev *dev; | |
127 | u32 __iomem *gatt_table; | |
128 | u32 *gatt_table_real; | |
129 | unsigned long scratch_page; | |
130 | unsigned long scratch_page_real; | |
131 | unsigned long gart_bus_addr; | |
132 | unsigned long gatt_bus_addr; | |
133 | u32 mode; | |
134 | enum chipset_type type; | |
135 | unsigned long *key_list; | |
136 | atomic_t current_memory_agp; | |
137 | atomic_t agp_in_use; | |
138 | int max_memory_agp; /* in number of pages */ | |
139 | int aperture_size_idx; | |
140 | int capndx; | |
141 | int flags; | |
142 | char major_version; | |
143 | char minor_version; | |
144 | struct list_head list; | |
b0825488 | 145 | u32 apbase_config; |
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146 | }; |
147 | ||
148 | #define KB(x) ((x) * 1024) | |
149 | #define MB(x) (KB (KB (x))) | |
150 | #define GB(x) (MB (KB (x))) | |
151 | ||
152 | #define A_SIZE_8(x) ((struct aper_size_info_8 *) x) | |
153 | #define A_SIZE_16(x) ((struct aper_size_info_16 *) x) | |
154 | #define A_SIZE_32(x) ((struct aper_size_info_32 *) x) | |
155 | #define A_SIZE_LVL2(x) ((struct aper_size_info_lvl2 *) x) | |
156 | #define A_SIZE_FIX(x) ((struct aper_size_info_fixed *) x) | |
157 | #define A_IDX8(bridge) (A_SIZE_8((bridge)->driver->aperture_sizes) + i) | |
158 | #define A_IDX16(bridge) (A_SIZE_16((bridge)->driver->aperture_sizes) + i) | |
159 | #define A_IDX32(bridge) (A_SIZE_32((bridge)->driver->aperture_sizes) + i) | |
160 | #define MAXKEY (4096 * 32) | |
161 | ||
162 | #define PGE_EMPTY(b, p) (!(p) || (p) == (unsigned long) (b)->scratch_page) | |
163 | ||
164 | ||
165 | /* Intel registers */ | |
166 | #define INTEL_APSIZE 0xb4 | |
167 | #define INTEL_ATTBASE 0xb8 | |
168 | #define INTEL_AGPCTRL 0xb0 | |
169 | #define INTEL_NBXCFG 0x50 | |
170 | #define INTEL_ERRSTS 0x91 | |
171 | ||
172 | /* Intel i830 registers */ | |
173 | #define I830_GMCH_CTRL 0x52 | |
174 | #define I830_GMCH_ENABLED 0x4 | |
175 | #define I830_GMCH_MEM_MASK 0x1 | |
176 | #define I830_GMCH_MEM_64M 0x1 | |
177 | #define I830_GMCH_MEM_128M 0 | |
178 | #define I830_GMCH_GMS_MASK 0x70 | |
179 | #define I830_GMCH_GMS_DISABLED 0x00 | |
180 | #define I830_GMCH_GMS_LOCAL 0x10 | |
181 | #define I830_GMCH_GMS_STOLEN_512 0x20 | |
182 | #define I830_GMCH_GMS_STOLEN_1024 0x30 | |
183 | #define I830_GMCH_GMS_STOLEN_8192 0x40 | |
184 | #define I830_RDRAM_CHANNEL_TYPE 0x03010 | |
185 | #define I830_RDRAM_ND(x) (((x) & 0x20) >> 5) | |
186 | #define I830_RDRAM_DDT(x) (((x) & 0x18) >> 3) | |
187 | ||
188 | /* This one is for I830MP w. an external graphic card */ | |
189 | #define INTEL_I830_ERRSTS 0x92 | |
190 | ||
191 | /* Intel 855GM/852GM registers */ | |
192 | #define I855_GMCH_GMS_STOLEN_0M 0x0 | |
193 | #define I855_GMCH_GMS_STOLEN_1M (0x1 << 4) | |
194 | #define I855_GMCH_GMS_STOLEN_4M (0x2 << 4) | |
195 | #define I855_GMCH_GMS_STOLEN_8M (0x3 << 4) | |
196 | #define I855_GMCH_GMS_STOLEN_16M (0x4 << 4) | |
197 | #define I855_GMCH_GMS_STOLEN_32M (0x5 << 4) | |
198 | #define I85X_CAPID 0x44 | |
199 | #define I85X_VARIANT_MASK 0x7 | |
200 | #define I85X_VARIANT_SHIFT 5 | |
201 | #define I855_GME 0x0 | |
202 | #define I855_GM 0x4 | |
203 | #define I852_GME 0x2 | |
204 | #define I852_GM 0x5 | |
205 | ||
206 | /* Intel i845 registers */ | |
207 | #define INTEL_I845_AGPM 0x51 | |
208 | #define INTEL_I845_ERRSTS 0xc8 | |
209 | ||
210 | /* Intel i860 registers */ | |
211 | #define INTEL_I860_MCHCFG 0x50 | |
212 | #define INTEL_I860_ERRSTS 0xc8 | |
213 | ||
214 | /* Intel i810 registers */ | |
215 | #define I810_GMADDR 0x10 | |
216 | #define I810_MMADDR 0x14 | |
217 | #define I810_PTE_BASE 0x10000 | |
218 | #define I810_PTE_MAIN_UNCACHED 0x00000000 | |
219 | #define I810_PTE_LOCAL 0x00000002 | |
220 | #define I810_PTE_VALID 0x00000001 | |
221 | #define I810_SMRAM_MISCC 0x70 | |
222 | #define I810_GFX_MEM_WIN_SIZE 0x00010000 | |
223 | #define I810_GFX_MEM_WIN_32M 0x00010000 | |
224 | #define I810_GMS 0x000000c0 | |
225 | #define I810_GMS_DISABLE 0x00000000 | |
226 | #define I810_PGETBL_CTL 0x2020 | |
227 | #define I810_PGETBL_ENABLED 0x00000001 | |
228 | #define I810_DRAM_CTL 0x3000 | |
229 | #define I810_DRAM_ROW_0 0x00000001 | |
230 | #define I810_DRAM_ROW_0_SDRAM 0x00000001 | |
231 | ||
232 | struct agp_device_ids { | |
233 | unsigned short device_id; /* first, to make table easier to read */ | |
234 | enum chipset_type chipset; | |
235 | const char *chipset_name; | |
236 | int (*chipset_setup) (struct pci_dev *pdev); /* used to override generic */ | |
237 | }; | |
238 | ||
239 | /* Driver registration */ | |
240 | struct agp_bridge_data *agp_alloc_bridge(void); | |
241 | void agp_put_bridge(struct agp_bridge_data *bridge); | |
242 | int agp_add_bridge(struct agp_bridge_data *bridge); | |
243 | void agp_remove_bridge(struct agp_bridge_data *bridge); | |
244 | ||
245 | /* Frontend routines. */ | |
246 | int agp_frontend_initialize(void); | |
247 | void agp_frontend_cleanup(void); | |
248 | ||
249 | /* Generic routines. */ | |
250 | void agp_generic_enable(struct agp_bridge_data *bridge, u32 mode); | |
251 | int agp_generic_create_gatt_table(struct agp_bridge_data *bridge); | |
252 | int agp_generic_free_gatt_table(struct agp_bridge_data *bridge); | |
253 | struct agp_memory *agp_create_memory(int scratch_pages); | |
254 | int agp_generic_insert_memory(struct agp_memory *mem, off_t pg_start, int type); | |
255 | int agp_generic_remove_memory(struct agp_memory *mem, off_t pg_start, int type); | |
256 | struct agp_memory *agp_generic_alloc_by_type(size_t page_count, int type); | |
257 | void agp_generic_free_by_type(struct agp_memory *curr); | |
258 | void *agp_generic_alloc_page(struct agp_bridge_data *bridge); | |
259 | void agp_generic_destroy_page(void *addr); | |
260 | void agp_free_key(int key); | |
261 | int agp_num_entries(void); | |
262 | u32 agp_collect_device_status(struct agp_bridge_data *bridge, u32 mode, u32 command); | |
263 | void agp_device_command(u32 command, int agp_v3); | |
264 | int agp_3_5_enable(struct agp_bridge_data *bridge); | |
265 | void global_cache_flush(void); | |
266 | void get_agp_version(struct agp_bridge_data *bridge); | |
267 | unsigned long agp_generic_mask_memory(struct agp_bridge_data *bridge, | |
268 | unsigned long addr, int type); | |
269 | struct agp_bridge_data *agp_generic_find_bridge(struct pci_dev *pdev); | |
270 | ||
271 | /* generic routines for agp>=3 */ | |
272 | int agp3_generic_fetch_size(void); | |
273 | void agp3_generic_tlbflush(struct agp_memory *mem); | |
274 | int agp3_generic_configure(void); | |
275 | void agp3_generic_cleanup(void); | |
276 | ||
277 | /* aperture sizes have been standardised since v3 */ | |
278 | #define AGP_GENERIC_SIZES_ENTRIES 11 | |
279 | extern struct aper_size_info_16 agp3_generic_sizes[]; | |
280 | ||
07eee78e KF |
281 | #define virt_to_gart(x) (phys_to_gart(virt_to_phys(x))) |
282 | #define gart_to_virt(x) (phys_to_virt(gart_to_phys(x))) | |
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283 | |
284 | extern int agp_off; | |
285 | extern int agp_try_unsupported_boot; | |
286 | ||
287 | /* Chipset independant registers (from AGP Spec) */ | |
288 | #define AGP_APBASE 0x10 | |
289 | ||
290 | #define AGPSTAT 0x4 | |
291 | #define AGPCMD 0x8 | |
292 | #define AGPNISTAT 0xc | |
293 | #define AGPCTRL 0x10 | |
294 | #define AGPAPSIZE 0x14 | |
295 | #define AGPNEPG 0x16 | |
296 | #define AGPGARTLO 0x18 | |
297 | #define AGPGARTHI 0x1c | |
298 | #define AGPNICMD 0x20 | |
299 | ||
300 | #define AGP_MAJOR_VERSION_SHIFT (20) | |
301 | #define AGP_MINOR_VERSION_SHIFT (16) | |
302 | ||
303 | #define AGPSTAT_RQ_DEPTH (0xff000000) | |
304 | #define AGPSTAT_RQ_DEPTH_SHIFT 24 | |
305 | ||
306 | #define AGPSTAT_CAL_MASK (1<<12|1<<11|1<<10) | |
307 | #define AGPSTAT_ARQSZ (1<<15|1<<14|1<<13) | |
308 | #define AGPSTAT_ARQSZ_SHIFT 13 | |
309 | ||
310 | #define AGPSTAT_SBA (1<<9) | |
311 | #define AGPSTAT_AGP_ENABLE (1<<8) | |
312 | #define AGPSTAT_FW (1<<4) | |
313 | #define AGPSTAT_MODE_3_0 (1<<3) | |
314 | ||
315 | #define AGPSTAT2_1X (1<<0) | |
316 | #define AGPSTAT2_2X (1<<1) | |
317 | #define AGPSTAT2_4X (1<<2) | |
318 | ||
319 | #define AGPSTAT3_RSVD (1<<2) | |
320 | #define AGPSTAT3_8X (1<<1) | |
321 | #define AGPSTAT3_4X (1) | |
322 | ||
323 | #define AGPCTRL_APERENB (1<<8) | |
324 | #define AGPCTRL_GTLBEN (1<<7) | |
325 | ||
326 | #define AGP2_RESERVED_MASK 0x00fffcc8 | |
327 | #define AGP3_RESERVED_MASK 0x00ff00c4 | |
328 | ||
329 | #define AGP_ERRATA_FASTWRITES 1<<0 | |
330 | #define AGP_ERRATA_SBA 1<<1 | |
331 | #define AGP_ERRATA_1X 1<<2 | |
332 | ||
333 | #endif /* _AGP_BACKEND_PRIV_H */ |