Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * arch/parisc/kernel/firmware.c - safe PDC access routines | |
3 | * | |
4 | * PDC == Processor Dependent Code | |
5 | * | |
6 | * See http://www.parisc-linux.org/documentation/index.html | |
7 | * for documentation describing the entry points and calling | |
8 | * conventions defined below. | |
9 | * | |
10 | * Copyright 1999 SuSE GmbH Nuernberg (Philipp Rumpf, prumpf@tux.org) | |
11 | * Copyright 1999 The Puffin Group, (Alex deVries, David Kennedy) | |
12 | * Copyright 2003 Grant Grundler <grundler parisc-linux org> | |
13 | * Copyright 2003,2004 Ryan Bradetich <rbrad@parisc-linux.org> | |
8ffaeaf4 | 14 | * Copyright 2004,2006 Thibaut VARENE <varenet@parisc-linux.org> |
1da177e4 LT |
15 | * |
16 | * This program is free software; you can redistribute it and/or modify | |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | * | |
21 | */ | |
22 | ||
23 | /* I think it would be in everyone's best interest to follow this | |
24 | * guidelines when writing PDC wrappers: | |
25 | * | |
26 | * - the name of the pdc wrapper should match one of the macros | |
27 | * used for the first two arguments | |
28 | * - don't use caps for random parts of the name | |
29 | * - use the static PDC result buffers and "copyout" to structs | |
30 | * supplied by the caller to encapsulate alignment restrictions | |
31 | * - hold pdc_lock while in PDC or using static result buffers | |
32 | * - use __pa() to convert virtual (kernel) pointers to physical | |
33 | * ones. | |
34 | * - the name of the struct used for pdc return values should equal | |
35 | * one of the macros used for the first two arguments to the | |
36 | * corresponding PDC call | |
37 | * - keep the order of arguments | |
38 | * - don't be smart (setting trailing NUL bytes for strings, return | |
39 | * something useful even if the call failed) unless you are sure | |
40 | * it's not going to affect functionality or performance | |
41 | * | |
42 | * Example: | |
43 | * int pdc_cache_info(struct pdc_cache_info *cache_info ) | |
44 | * { | |
45 | * int retval; | |
46 | * | |
47 | * spin_lock_irq(&pdc_lock); | |
48 | * retval = mem_pdc_call(PDC_CACHE,PDC_CACHE_INFO,__pa(cache_info),0); | |
49 | * convert_to_wide(pdc_result); | |
50 | * memcpy(cache_info, pdc_result, sizeof(*cache_info)); | |
51 | * spin_unlock_irq(&pdc_lock); | |
52 | * | |
53 | * return retval; | |
54 | * } | |
55 | * prumpf 991016 | |
56 | */ | |
57 | ||
58 | #include <stdarg.h> | |
59 | ||
60 | #include <linux/delay.h> | |
61 | #include <linux/init.h> | |
62 | #include <linux/kernel.h> | |
63 | #include <linux/module.h> | |
64 | #include <linux/string.h> | |
65 | #include <linux/spinlock.h> | |
66 | ||
67 | #include <asm/page.h> | |
68 | #include <asm/pdc.h> | |
69 | #include <asm/pdcpat.h> | |
70 | #include <asm/system.h> | |
71 | #include <asm/processor.h> /* for boot_cpu_data */ | |
72 | ||
73 | static DEFINE_SPINLOCK(pdc_lock); | |
6c86cb82 KM |
74 | extern unsigned long pdc_result[NUM_PDC_RESULT]; |
75 | extern unsigned long pdc_result2[NUM_PDC_RESULT]; | |
1da177e4 | 76 | |
a8f44e38 | 77 | #ifdef CONFIG_64BIT |
1da177e4 LT |
78 | #define WIDE_FIRMWARE 0x1 |
79 | #define NARROW_FIRMWARE 0x2 | |
80 | ||
81 | /* Firmware needs to be initially set to narrow to determine the | |
82 | * actual firmware width. */ | |
8039de10 | 83 | int parisc_narrow_firmware __read_mostly = 1; |
1da177e4 LT |
84 | #endif |
85 | ||
675ec7a5 GG |
86 | /* On most currently-supported platforms, IODC I/O calls are 32-bit calls |
87 | * and MEM_PDC calls are always the same width as the OS. | |
88 | * Some PAT boxes may have 64-bit IODC I/O. | |
1da177e4 | 89 | * |
675ec7a5 GG |
90 | * Ryan Bradetich added the now obsolete CONFIG_PDC_NARROW to allow |
91 | * 64-bit kernels to run on systems with 32-bit MEM_PDC calls. | |
92 | * This allowed wide kernels to run on Cxxx boxes. | |
93 | * We now detect 32-bit-only PDC and dynamically switch to 32-bit mode | |
94 | * when running a 64-bit kernel on such boxes (e.g. C200 or C360). | |
1da177e4 LT |
95 | */ |
96 | ||
a8f44e38 | 97 | #ifdef CONFIG_64BIT |
1da177e4 LT |
98 | long real64_call(unsigned long function, ...); |
99 | #endif | |
100 | long real32_call(unsigned long function, ...); | |
101 | ||
a8f44e38 | 102 | #ifdef CONFIG_64BIT |
1da177e4 LT |
103 | # define MEM_PDC (unsigned long)(PAGE0->mem_pdc_hi) << 32 | PAGE0->mem_pdc |
104 | # define mem_pdc_call(args...) unlikely(parisc_narrow_firmware) ? real32_call(MEM_PDC, args) : real64_call(MEM_PDC, args) | |
105 | #else | |
106 | # define MEM_PDC (unsigned long)PAGE0->mem_pdc | |
107 | # define mem_pdc_call(args...) real32_call(MEM_PDC, args) | |
108 | #endif | |
109 | ||
110 | ||
111 | /** | |
112 | * f_extend - Convert PDC addresses to kernel addresses. | |
113 | * @address: Address returned from PDC. | |
114 | * | |
115 | * This function is used to convert PDC addresses into kernel addresses | |
116 | * when the PDC address size and kernel address size are different. | |
117 | */ | |
118 | static unsigned long f_extend(unsigned long address) | |
119 | { | |
a8f44e38 | 120 | #ifdef CONFIG_64BIT |
1da177e4 LT |
121 | if(unlikely(parisc_narrow_firmware)) { |
122 | if((address & 0xff000000) == 0xf0000000) | |
123 | return 0xf0f0f0f000000000UL | (u32)address; | |
124 | ||
125 | if((address & 0xf0000000) == 0xf0000000) | |
126 | return 0xffffffff00000000UL | (u32)address; | |
127 | } | |
128 | #endif | |
129 | return address; | |
130 | } | |
131 | ||
132 | /** | |
133 | * convert_to_wide - Convert the return buffer addresses into kernel addresses. | |
134 | * @address: The return buffer from PDC. | |
135 | * | |
136 | * This function is used to convert the return buffer addresses retrieved from PDC | |
137 | * into kernel addresses when the PDC address size and kernel address size are | |
138 | * different. | |
139 | */ | |
140 | static void convert_to_wide(unsigned long *addr) | |
141 | { | |
a8f44e38 | 142 | #ifdef CONFIG_64BIT |
1da177e4 LT |
143 | int i; |
144 | unsigned int *p = (unsigned int *)addr; | |
145 | ||
146 | if(unlikely(parisc_narrow_firmware)) { | |
147 | for(i = 31; i >= 0; --i) | |
148 | addr[i] = p[i]; | |
149 | } | |
150 | #endif | |
151 | } | |
152 | ||
24b574d0 KM |
153 | #ifdef CONFIG_64BIT |
154 | void __init set_firmware_width_unlocked(void) | |
155 | { | |
156 | int ret; | |
157 | ||
158 | ret = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, | |
159 | __pa(pdc_result), 0); | |
160 | convert_to_wide(pdc_result); | |
161 | if (pdc_result[0] != NARROW_FIRMWARE) | |
162 | parisc_narrow_firmware = 0; | |
163 | } | |
164 | ||
1da177e4 LT |
165 | /** |
166 | * set_firmware_width - Determine if the firmware is wide or narrow. | |
167 | * | |
24b574d0 KM |
168 | * This function must be called before any pdc_* function that uses the |
169 | * convert_to_wide function. | |
1da177e4 LT |
170 | */ |
171 | void __init set_firmware_width(void) | |
172 | { | |
09690b18 | 173 | unsigned long flags; |
24b574d0 KM |
174 | spin_lock_irqsave(&pdc_lock, flags); |
175 | set_firmware_width_unlocked(); | |
176 | spin_unlock_irqrestore(&pdc_lock, flags); | |
177 | } | |
178 | #else | |
179 | void __init set_firmware_width_unlocked(void) { | |
180 | return; | |
181 | } | |
1da177e4 | 182 | |
24b574d0 KM |
183 | void __init set_firmware_width(void) { |
184 | return; | |
1da177e4 | 185 | } |
24b574d0 | 186 | #endif /*CONFIG_64BIT*/ |
1da177e4 LT |
187 | |
188 | /** | |
189 | * pdc_emergency_unlock - Unlock the linux pdc lock | |
190 | * | |
191 | * This call unlocks the linux pdc lock in case we need some PDC functions | |
192 | * (like pdc_add_valid) during kernel stack dump. | |
193 | */ | |
194 | void pdc_emergency_unlock(void) | |
195 | { | |
196 | /* Spinlock DEBUG code freaks out if we unconditionally unlock */ | |
197 | if (spin_is_locked(&pdc_lock)) | |
198 | spin_unlock(&pdc_lock); | |
199 | } | |
200 | ||
201 | ||
202 | /** | |
203 | * pdc_add_valid - Verify address can be accessed without causing a HPMC. | |
204 | * @address: Address to be verified. | |
205 | * | |
206 | * This PDC call attempts to read from the specified address and verifies | |
207 | * if the address is valid. | |
208 | * | |
209 | * The return value is PDC_OK (0) in case accessing this address is valid. | |
210 | */ | |
211 | int pdc_add_valid(unsigned long address) | |
212 | { | |
213 | int retval; | |
09690b18 | 214 | unsigned long flags; |
1da177e4 | 215 | |
09690b18 | 216 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 | 217 | retval = mem_pdc_call(PDC_ADD_VALID, PDC_ADD_VALID_VERIFY, address); |
09690b18 | 218 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
219 | |
220 | return retval; | |
221 | } | |
222 | EXPORT_SYMBOL(pdc_add_valid); | |
223 | ||
224 | /** | |
225 | * pdc_chassis_info - Return chassis information. | |
226 | * @result: The return buffer. | |
227 | * @chassis_info: The memory buffer address. | |
228 | * @len: The size of the memory buffer address. | |
229 | * | |
230 | * An HVERSION dependent call for returning the chassis information. | |
231 | */ | |
232 | int __init pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len) | |
233 | { | |
234 | int retval; | |
09690b18 | 235 | unsigned long flags; |
1da177e4 | 236 | |
09690b18 | 237 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
238 | memcpy(&pdc_result, chassis_info, sizeof(*chassis_info)); |
239 | memcpy(&pdc_result2, led_info, len); | |
240 | retval = mem_pdc_call(PDC_CHASSIS, PDC_RETURN_CHASSIS_INFO, | |
241 | __pa(pdc_result), __pa(pdc_result2), len); | |
242 | memcpy(chassis_info, pdc_result, sizeof(*chassis_info)); | |
243 | memcpy(led_info, pdc_result2, len); | |
09690b18 | 244 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
245 | |
246 | return retval; | |
247 | } | |
248 | ||
249 | /** | |
250 | * pdc_pat_chassis_send_log - Sends a PDC PAT CHASSIS log message. | |
251 | * @retval: -1 on error, 0 on success. Other value are PDC errors | |
252 | * | |
253 | * Must be correctly formatted or expect system crash | |
254 | */ | |
a8f44e38 | 255 | #ifdef CONFIG_64BIT |
1da177e4 LT |
256 | int pdc_pat_chassis_send_log(unsigned long state, unsigned long data) |
257 | { | |
258 | int retval = 0; | |
09690b18 | 259 | unsigned long flags; |
1da177e4 LT |
260 | |
261 | if (!is_pdc_pat()) | |
262 | return -1; | |
263 | ||
09690b18 | 264 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 | 265 | retval = mem_pdc_call(PDC_PAT_CHASSIS_LOG, PDC_PAT_CHASSIS_WRITE_LOG, __pa(&state), __pa(&data)); |
09690b18 | 266 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
267 | |
268 | return retval; | |
269 | } | |
270 | #endif | |
271 | ||
272 | /** | |
8ffaeaf4 | 273 | * pdc_chassis_disp - Updates chassis code |
1da177e4 | 274 | * @retval: -1 on error, 0 on success |
1da177e4 LT |
275 | */ |
276 | int pdc_chassis_disp(unsigned long disp) | |
277 | { | |
278 | int retval = 0; | |
09690b18 | 279 | unsigned long flags; |
1da177e4 | 280 | |
09690b18 | 281 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 | 282 | retval = mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_DISP, disp); |
09690b18 | 283 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
284 | |
285 | return retval; | |
286 | } | |
287 | ||
8ffaeaf4 TV |
288 | /** |
289 | * pdc_chassis_warn - Fetches chassis warnings | |
290 | * @retval: -1 on error, 0 on success | |
291 | */ | |
292 | int pdc_chassis_warn(unsigned long *warn) | |
293 | { | |
294 | int retval = 0; | |
09690b18 | 295 | unsigned long flags; |
8ffaeaf4 | 296 | |
09690b18 | 297 | spin_lock_irqsave(&pdc_lock, flags); |
8ffaeaf4 TV |
298 | retval = mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_WARN, __pa(pdc_result)); |
299 | *warn = pdc_result[0]; | |
09690b18 | 300 | spin_unlock_irqrestore(&pdc_lock, flags); |
8ffaeaf4 TV |
301 | |
302 | return retval; | |
303 | } | |
304 | ||
24b574d0 KM |
305 | int __init pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info) |
306 | { | |
307 | int ret; | |
308 | ||
309 | ret = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result)); | |
310 | convert_to_wide(pdc_result); | |
311 | pdc_coproc_info->ccr_functional = pdc_result[0]; | |
312 | pdc_coproc_info->ccr_present = pdc_result[1]; | |
313 | pdc_coproc_info->revision = pdc_result[17]; | |
314 | pdc_coproc_info->model = pdc_result[18]; | |
315 | ||
316 | return ret; | |
317 | } | |
318 | ||
1da177e4 LT |
319 | /** |
320 | * pdc_coproc_cfg - To identify coprocessors attached to the processor. | |
321 | * @pdc_coproc_info: Return buffer address. | |
322 | * | |
323 | * This PDC call returns the presence and status of all the coprocessors | |
324 | * attached to the processor. | |
325 | */ | |
326 | int __init pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info) | |
327 | { | |
24b574d0 | 328 | int ret; |
09690b18 | 329 | unsigned long flags; |
1da177e4 | 330 | |
24b574d0 KM |
331 | spin_lock_irqsave(&pdc_lock, flags); |
332 | ret = pdc_coproc_cfg_unlocked(pdc_coproc_info); | |
333 | spin_unlock_irqrestore(&pdc_lock, flags); | |
1da177e4 | 334 | |
24b574d0 | 335 | return ret; |
1da177e4 LT |
336 | } |
337 | ||
338 | /** | |
339 | * pdc_iodc_read - Read data from the modules IODC. | |
340 | * @actcnt: The actual number of bytes. | |
341 | * @hpa: The HPA of the module for the iodc read. | |
342 | * @index: The iodc entry point. | |
343 | * @iodc_data: A buffer memory for the iodc options. | |
344 | * @iodc_data_size: Size of the memory buffer. | |
345 | * | |
346 | * This PDC call reads from the IODC of the module specified by the hpa | |
347 | * argument. | |
348 | */ | |
349 | int pdc_iodc_read(unsigned long *actcnt, unsigned long hpa, unsigned int index, | |
350 | void *iodc_data, unsigned int iodc_data_size) | |
351 | { | |
352 | int retval; | |
09690b18 | 353 | unsigned long flags; |
1da177e4 | 354 | |
09690b18 | 355 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
356 | retval = mem_pdc_call(PDC_IODC, PDC_IODC_READ, __pa(pdc_result), hpa, |
357 | index, __pa(pdc_result2), iodc_data_size); | |
358 | convert_to_wide(pdc_result); | |
359 | *actcnt = pdc_result[0]; | |
360 | memcpy(iodc_data, pdc_result2, iodc_data_size); | |
09690b18 | 361 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
362 | |
363 | return retval; | |
364 | } | |
365 | EXPORT_SYMBOL(pdc_iodc_read); | |
366 | ||
367 | /** | |
368 | * pdc_system_map_find_mods - Locate unarchitected modules. | |
369 | * @pdc_mod_info: Return buffer address. | |
370 | * @mod_path: pointer to dev path structure. | |
371 | * @mod_index: fixed address module index. | |
372 | * | |
373 | * To locate and identify modules which reside at fixed I/O addresses, which | |
374 | * do not self-identify via architected bus walks. | |
375 | */ | |
376 | int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info, | |
377 | struct pdc_module_path *mod_path, long mod_index) | |
378 | { | |
379 | int retval; | |
09690b18 | 380 | unsigned long flags; |
1da177e4 | 381 | |
09690b18 | 382 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
383 | retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_MODULE, __pa(pdc_result), |
384 | __pa(pdc_result2), mod_index); | |
385 | convert_to_wide(pdc_result); | |
386 | memcpy(pdc_mod_info, pdc_result, sizeof(*pdc_mod_info)); | |
387 | memcpy(mod_path, pdc_result2, sizeof(*mod_path)); | |
09690b18 | 388 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
389 | |
390 | pdc_mod_info->mod_addr = f_extend(pdc_mod_info->mod_addr); | |
391 | return retval; | |
392 | } | |
393 | ||
394 | /** | |
395 | * pdc_system_map_find_addrs - Retrieve additional address ranges. | |
396 | * @pdc_addr_info: Return buffer address. | |
397 | * @mod_index: Fixed address module index. | |
398 | * @addr_index: Address range index. | |
399 | * | |
400 | * Retrieve additional information about subsequent address ranges for modules | |
401 | * with multiple address ranges. | |
402 | */ | |
403 | int pdc_system_map_find_addrs(struct pdc_system_map_addr_info *pdc_addr_info, | |
404 | long mod_index, long addr_index) | |
405 | { | |
406 | int retval; | |
09690b18 | 407 | unsigned long flags; |
1da177e4 | 408 | |
09690b18 | 409 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
410 | retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_ADDRESS, __pa(pdc_result), |
411 | mod_index, addr_index); | |
412 | convert_to_wide(pdc_result); | |
413 | memcpy(pdc_addr_info, pdc_result, sizeof(*pdc_addr_info)); | |
09690b18 | 414 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
415 | |
416 | pdc_addr_info->mod_addr = f_extend(pdc_addr_info->mod_addr); | |
417 | return retval; | |
418 | } | |
419 | ||
420 | /** | |
421 | * pdc_model_info - Return model information about the processor. | |
422 | * @model: The return buffer. | |
423 | * | |
424 | * Returns the version numbers, identifiers, and capabilities from the processor module. | |
425 | */ | |
426 | int pdc_model_info(struct pdc_model *model) | |
427 | { | |
428 | int retval; | |
09690b18 | 429 | unsigned long flags; |
1da177e4 | 430 | |
09690b18 | 431 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
432 | retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_INFO, __pa(pdc_result), 0); |
433 | convert_to_wide(pdc_result); | |
434 | memcpy(model, pdc_result, sizeof(*model)); | |
09690b18 | 435 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
436 | |
437 | return retval; | |
438 | } | |
439 | ||
440 | /** | |
441 | * pdc_model_sysmodel - Get the system model name. | |
442 | * @name: A char array of at least 81 characters. | |
443 | * | |
ec1fdc24 KM |
444 | * Get system model name from PDC ROM (e.g. 9000/715 or 9000/778/B160L). |
445 | * Using OS_ID_HPUX will return the equivalent of the 'modelname' command | |
446 | * on HP/UX. | |
1da177e4 LT |
447 | */ |
448 | int pdc_model_sysmodel(char *name) | |
449 | { | |
450 | int retval; | |
09690b18 | 451 | unsigned long flags; |
1da177e4 | 452 | |
09690b18 | 453 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
454 | retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_SYSMODEL, __pa(pdc_result), |
455 | OS_ID_HPUX, __pa(name)); | |
456 | convert_to_wide(pdc_result); | |
457 | ||
458 | if (retval == PDC_OK) { | |
459 | name[pdc_result[0]] = '\0'; /* add trailing '\0' */ | |
460 | } else { | |
461 | name[0] = 0; | |
462 | } | |
09690b18 | 463 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
464 | |
465 | return retval; | |
466 | } | |
467 | ||
468 | /** | |
469 | * pdc_model_versions - Identify the version number of each processor. | |
470 | * @cpu_id: The return buffer. | |
471 | * @id: The id of the processor to check. | |
472 | * | |
473 | * Returns the version number for each processor component. | |
474 | * | |
475 | * This comment was here before, but I do not know what it means :( -RB | |
476 | * id: 0 = cpu revision, 1 = boot-rom-version | |
477 | */ | |
478 | int pdc_model_versions(unsigned long *versions, int id) | |
479 | { | |
480 | int retval; | |
09690b18 | 481 | unsigned long flags; |
1da177e4 | 482 | |
09690b18 | 483 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
484 | retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_VERSIONS, __pa(pdc_result), id); |
485 | convert_to_wide(pdc_result); | |
486 | *versions = pdc_result[0]; | |
09690b18 | 487 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
488 | |
489 | return retval; | |
490 | } | |
491 | ||
492 | /** | |
493 | * pdc_model_cpuid - Returns the CPU_ID. | |
494 | * @cpu_id: The return buffer. | |
495 | * | |
496 | * Returns the CPU_ID value which uniquely identifies the cpu portion of | |
497 | * the processor module. | |
498 | */ | |
499 | int pdc_model_cpuid(unsigned long *cpu_id) | |
500 | { | |
501 | int retval; | |
09690b18 | 502 | unsigned long flags; |
1da177e4 | 503 | |
09690b18 | 504 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
505 | pdc_result[0] = 0; /* preset zero (call may not be implemented!) */ |
506 | retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CPU_ID, __pa(pdc_result), 0); | |
507 | convert_to_wide(pdc_result); | |
508 | *cpu_id = pdc_result[0]; | |
09690b18 | 509 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
510 | |
511 | return retval; | |
512 | } | |
513 | ||
514 | /** | |
515 | * pdc_model_capabilities - Returns the platform capabilities. | |
516 | * @capabilities: The return buffer. | |
517 | * | |
518 | * Returns information about platform support for 32- and/or 64-bit | |
519 | * OSes, IO-PDIR coherency, and virtual aliasing. | |
520 | */ | |
521 | int pdc_model_capabilities(unsigned long *capabilities) | |
522 | { | |
523 | int retval; | |
09690b18 | 524 | unsigned long flags; |
1da177e4 | 525 | |
09690b18 | 526 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
527 | pdc_result[0] = 0; /* preset zero (call may not be implemented!) */ |
528 | retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0); | |
529 | convert_to_wide(pdc_result); | |
530 | *capabilities = pdc_result[0]; | |
09690b18 | 531 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
532 | |
533 | return retval; | |
534 | } | |
535 | ||
536 | /** | |
537 | * pdc_cache_info - Return cache and TLB information. | |
538 | * @cache_info: The return buffer. | |
539 | * | |
540 | * Returns information about the processor's cache and TLB. | |
541 | */ | |
542 | int pdc_cache_info(struct pdc_cache_info *cache_info) | |
543 | { | |
544 | int retval; | |
09690b18 | 545 | unsigned long flags; |
1da177e4 | 546 | |
09690b18 | 547 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
548 | retval = mem_pdc_call(PDC_CACHE, PDC_CACHE_INFO, __pa(pdc_result), 0); |
549 | convert_to_wide(pdc_result); | |
550 | memcpy(cache_info, pdc_result, sizeof(*cache_info)); | |
09690b18 | 551 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
552 | |
553 | return retval; | |
554 | } | |
555 | ||
a9d2d386 KM |
556 | /** |
557 | * pdc_spaceid_bits - Return whether Space ID hashing is turned on. | |
558 | * @space_bits: Should be 0, if not, bad mojo! | |
559 | * | |
560 | * Returns information about Space ID hashing. | |
561 | */ | |
562 | int pdc_spaceid_bits(unsigned long *space_bits) | |
563 | { | |
564 | int retval; | |
09690b18 | 565 | unsigned long flags; |
a9d2d386 | 566 | |
09690b18 | 567 | spin_lock_irqsave(&pdc_lock, flags); |
a9d2d386 KM |
568 | pdc_result[0] = 0; |
569 | retval = mem_pdc_call(PDC_CACHE, PDC_CACHE_RET_SPID, __pa(pdc_result), 0); | |
570 | convert_to_wide(pdc_result); | |
571 | *space_bits = pdc_result[0]; | |
09690b18 | 572 | spin_unlock_irqrestore(&pdc_lock, flags); |
a9d2d386 KM |
573 | |
574 | return retval; | |
575 | } | |
576 | ||
1da177e4 LT |
577 | #ifndef CONFIG_PA20 |
578 | /** | |
579 | * pdc_btlb_info - Return block TLB information. | |
580 | * @btlb: The return buffer. | |
581 | * | |
582 | * Returns information about the hardware Block TLB. | |
583 | */ | |
584 | int pdc_btlb_info(struct pdc_btlb_info *btlb) | |
585 | { | |
586 | int retval; | |
09690b18 | 587 | unsigned long flags; |
1da177e4 | 588 | |
09690b18 | 589 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
590 | retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INFO, __pa(pdc_result), 0); |
591 | memcpy(btlb, pdc_result, sizeof(*btlb)); | |
09690b18 | 592 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
593 | |
594 | if(retval < 0) { | |
595 | btlb->max_size = 0; | |
596 | } | |
597 | return retval; | |
598 | } | |
599 | ||
600 | /** | |
601 | * pdc_mem_map_hpa - Find fixed module information. | |
602 | * @address: The return buffer | |
603 | * @mod_path: pointer to dev path structure. | |
604 | * | |
605 | * This call was developed for S700 workstations to allow the kernel to find | |
606 | * the I/O devices (Core I/O). In the future (Kittyhawk and beyond) this | |
607 | * call will be replaced (on workstations) by the architected PDC_SYSTEM_MAP | |
608 | * call. | |
609 | * | |
610 | * This call is supported by all existing S700 workstations (up to Gecko). | |
611 | */ | |
612 | int pdc_mem_map_hpa(struct pdc_memory_map *address, | |
613 | struct pdc_module_path *mod_path) | |
614 | { | |
615 | int retval; | |
09690b18 | 616 | unsigned long flags; |
1da177e4 | 617 | |
09690b18 | 618 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
619 | memcpy(pdc_result2, mod_path, sizeof(*mod_path)); |
620 | retval = mem_pdc_call(PDC_MEM_MAP, PDC_MEM_MAP_HPA, __pa(pdc_result), | |
621 | __pa(pdc_result2)); | |
622 | memcpy(address, pdc_result, sizeof(*address)); | |
09690b18 | 623 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
624 | |
625 | return retval; | |
626 | } | |
627 | #endif /* !CONFIG_PA20 */ | |
628 | ||
629 | /** | |
630 | * pdc_lan_station_id - Get the LAN address. | |
631 | * @lan_addr: The return buffer. | |
632 | * @hpa: The network device HPA. | |
633 | * | |
634 | * Get the LAN station address when it is not directly available from the LAN hardware. | |
635 | */ | |
636 | int pdc_lan_station_id(char *lan_addr, unsigned long hpa) | |
637 | { | |
638 | int retval; | |
09690b18 | 639 | unsigned long flags; |
1da177e4 | 640 | |
09690b18 | 641 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
642 | retval = mem_pdc_call(PDC_LAN_STATION_ID, PDC_LAN_STATION_ID_READ, |
643 | __pa(pdc_result), hpa); | |
644 | if (retval < 0) { | |
645 | /* FIXME: else read MAC from NVRAM */ | |
646 | memset(lan_addr, 0, PDC_LAN_STATION_ID_SIZE); | |
647 | } else { | |
648 | memcpy(lan_addr, pdc_result, PDC_LAN_STATION_ID_SIZE); | |
649 | } | |
09690b18 | 650 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
651 | |
652 | return retval; | |
653 | } | |
654 | EXPORT_SYMBOL(pdc_lan_station_id); | |
655 | ||
656 | /** | |
657 | * pdc_stable_read - Read data from Stable Storage. | |
658 | * @staddr: Stable Storage address to access. | |
659 | * @memaddr: The memory address where Stable Storage data shall be copied. | |
7022672e | 660 | * @count: number of bytes to transfer. count is multiple of 4. |
1da177e4 LT |
661 | * |
662 | * This PDC call reads from the Stable Storage address supplied in staddr | |
663 | * and copies count bytes to the memory address memaddr. | |
664 | * The call will fail if staddr+count > PDC_STABLE size. | |
665 | */ | |
666 | int pdc_stable_read(unsigned long staddr, void *memaddr, unsigned long count) | |
667 | { | |
668 | int retval; | |
09690b18 | 669 | unsigned long flags; |
1da177e4 | 670 | |
09690b18 | 671 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
672 | retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_READ, staddr, |
673 | __pa(pdc_result), count); | |
674 | convert_to_wide(pdc_result); | |
675 | memcpy(memaddr, pdc_result, count); | |
09690b18 | 676 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
677 | |
678 | return retval; | |
679 | } | |
680 | EXPORT_SYMBOL(pdc_stable_read); | |
681 | ||
682 | /** | |
683 | * pdc_stable_write - Write data to Stable Storage. | |
684 | * @staddr: Stable Storage address to access. | |
685 | * @memaddr: The memory address where Stable Storage data shall be read from. | |
7022672e | 686 | * @count: number of bytes to transfer. count is multiple of 4. |
1da177e4 LT |
687 | * |
688 | * This PDC call reads count bytes from the supplied memaddr address, | |
689 | * and copies count bytes to the Stable Storage address staddr. | |
690 | * The call will fail if staddr+count > PDC_STABLE size. | |
691 | */ | |
692 | int pdc_stable_write(unsigned long staddr, void *memaddr, unsigned long count) | |
693 | { | |
694 | int retval; | |
09690b18 | 695 | unsigned long flags; |
1da177e4 | 696 | |
09690b18 | 697 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
698 | memcpy(pdc_result, memaddr, count); |
699 | convert_to_wide(pdc_result); | |
700 | retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_WRITE, staddr, | |
701 | __pa(pdc_result), count); | |
09690b18 | 702 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
703 | |
704 | return retval; | |
705 | } | |
706 | EXPORT_SYMBOL(pdc_stable_write); | |
707 | ||
708 | /** | |
709 | * pdc_stable_get_size - Get Stable Storage size in bytes. | |
710 | * @size: pointer where the size will be stored. | |
711 | * | |
712 | * This PDC call returns the number of bytes in the processor's Stable | |
713 | * Storage, which is the number of contiguous bytes implemented in Stable | |
714 | * Storage starting from staddr=0. size in an unsigned 64-bit integer | |
715 | * which is a multiple of four. | |
716 | */ | |
717 | int pdc_stable_get_size(unsigned long *size) | |
718 | { | |
719 | int retval; | |
09690b18 | 720 | unsigned long flags; |
1da177e4 | 721 | |
09690b18 | 722 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
723 | retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_RETURN_SIZE, __pa(pdc_result)); |
724 | *size = pdc_result[0]; | |
09690b18 | 725 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
726 | |
727 | return retval; | |
728 | } | |
729 | EXPORT_SYMBOL(pdc_stable_get_size); | |
730 | ||
731 | /** | |
732 | * pdc_stable_verify_contents - Checks that Stable Storage contents are valid. | |
733 | * | |
734 | * This PDC call is meant to be used to check the integrity of the current | |
735 | * contents of Stable Storage. | |
736 | */ | |
737 | int pdc_stable_verify_contents(void) | |
738 | { | |
739 | int retval; | |
09690b18 | 740 | unsigned long flags; |
1da177e4 | 741 | |
09690b18 | 742 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 | 743 | retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_VERIFY_CONTENTS); |
09690b18 | 744 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
745 | |
746 | return retval; | |
747 | } | |
748 | EXPORT_SYMBOL(pdc_stable_verify_contents); | |
749 | ||
750 | /** | |
751 | * pdc_stable_initialize - Sets Stable Storage contents to zero and initialize | |
752 | * the validity indicator. | |
753 | * | |
754 | * This PDC call will erase all contents of Stable Storage. Use with care! | |
755 | */ | |
756 | int pdc_stable_initialize(void) | |
757 | { | |
758 | int retval; | |
09690b18 | 759 | unsigned long flags; |
1da177e4 | 760 | |
09690b18 | 761 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 | 762 | retval = mem_pdc_call(PDC_STABLE, PDC_STABLE_INITIALIZE); |
09690b18 | 763 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
764 | |
765 | return retval; | |
766 | } | |
767 | EXPORT_SYMBOL(pdc_stable_initialize); | |
768 | ||
769 | /** | |
770 | * pdc_get_initiator - Get the SCSI Interface Card params (SCSI ID, SDTR, SE or LVD) | |
771 | * @hwpath: fully bc.mod style path to the device. | |
772 | * @initiator: the array to return the result into | |
773 | * | |
774 | * Get the SCSI operational parameters from PDC. | |
775 | * Needed since HPUX never used BIOS or symbios card NVRAM. | |
776 | * Most ncr/sym cards won't have an entry and just use whatever | |
777 | * capabilities of the card are (eg Ultra, LVD). But there are | |
778 | * several cases where it's useful: | |
779 | * o set SCSI id for Multi-initiator clusters, | |
780 | * o cable too long (ie SE scsi 10Mhz won't support 6m length), | |
781 | * o bus width exported is less than what the interface chip supports. | |
782 | */ | |
783 | int pdc_get_initiator(struct hardware_path *hwpath, struct pdc_initiator *initiator) | |
784 | { | |
785 | int retval; | |
09690b18 | 786 | unsigned long flags; |
1da177e4 | 787 | |
09690b18 | 788 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
789 | |
790 | /* BCJ-XXXX series boxes. E.G. "9000/785/C3000" */ | |
791 | #define IS_SPROCKETS() (strlen(boot_cpu_data.pdc.sys_model_name) == 14 && \ | |
792 | strncmp(boot_cpu_data.pdc.sys_model_name, "9000/785", 8) == 0) | |
793 | ||
794 | retval = mem_pdc_call(PDC_INITIATOR, PDC_GET_INITIATOR, | |
795 | __pa(pdc_result), __pa(hwpath)); | |
796 | if (retval < PDC_OK) | |
797 | goto out; | |
798 | ||
799 | if (pdc_result[0] < 16) { | |
800 | initiator->host_id = pdc_result[0]; | |
801 | } else { | |
802 | initiator->host_id = -1; | |
803 | } | |
804 | ||
805 | /* | |
806 | * Sprockets and Piranha return 20 or 40 (MT/s). Prelude returns | |
807 | * 1, 2, 5 or 10 for 5, 10, 20 or 40 MT/s, respectively | |
808 | */ | |
809 | switch (pdc_result[1]) { | |
810 | case 1: initiator->factor = 50; break; | |
811 | case 2: initiator->factor = 25; break; | |
812 | case 5: initiator->factor = 12; break; | |
813 | case 25: initiator->factor = 10; break; | |
814 | case 20: initiator->factor = 12; break; | |
815 | case 40: initiator->factor = 10; break; | |
816 | default: initiator->factor = -1; break; | |
817 | } | |
818 | ||
819 | if (IS_SPROCKETS()) { | |
820 | initiator->width = pdc_result[4]; | |
821 | initiator->mode = pdc_result[5]; | |
822 | } else { | |
823 | initiator->width = -1; | |
824 | initiator->mode = -1; | |
825 | } | |
826 | ||
827 | out: | |
09690b18 KM |
828 | spin_unlock_irqrestore(&pdc_lock, flags); |
829 | ||
1da177e4 LT |
830 | return (retval >= PDC_OK); |
831 | } | |
832 | EXPORT_SYMBOL(pdc_get_initiator); | |
833 | ||
834 | ||
835 | /** | |
836 | * pdc_pci_irt_size - Get the number of entries in the interrupt routing table. | |
837 | * @num_entries: The return value. | |
838 | * @hpa: The HPA for the device. | |
839 | * | |
840 | * This PDC function returns the number of entries in the specified cell's | |
841 | * interrupt table. | |
842 | * Similar to PDC_PAT stuff - but added for Forte/Allegro boxes | |
843 | */ | |
844 | int pdc_pci_irt_size(unsigned long *num_entries, unsigned long hpa) | |
845 | { | |
846 | int retval; | |
09690b18 | 847 | unsigned long flags; |
1da177e4 | 848 | |
09690b18 | 849 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
850 | retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL_SIZE, |
851 | __pa(pdc_result), hpa); | |
852 | convert_to_wide(pdc_result); | |
853 | *num_entries = pdc_result[0]; | |
09690b18 | 854 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
855 | |
856 | return retval; | |
857 | } | |
858 | ||
859 | /** | |
860 | * pdc_pci_irt - Get the PCI interrupt routing table. | |
861 | * @num_entries: The number of entries in the table. | |
862 | * @hpa: The Hard Physical Address of the device. | |
863 | * @tbl: | |
864 | * | |
865 | * Get the PCI interrupt routing table for the device at the given HPA. | |
866 | * Similar to PDC_PAT stuff - but added for Forte/Allegro boxes | |
867 | */ | |
868 | int pdc_pci_irt(unsigned long num_entries, unsigned long hpa, void *tbl) | |
869 | { | |
870 | int retval; | |
09690b18 | 871 | unsigned long flags; |
1da177e4 LT |
872 | |
873 | BUG_ON((unsigned long)tbl & 0x7); | |
874 | ||
09690b18 | 875 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
876 | pdc_result[0] = num_entries; |
877 | retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_GET_INT_TBL, | |
878 | __pa(pdc_result), hpa, __pa(tbl)); | |
09690b18 | 879 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
880 | |
881 | return retval; | |
882 | } | |
883 | ||
884 | ||
885 | #if 0 /* UNTEST CODE - left here in case someone needs it */ | |
886 | ||
887 | /** | |
888 | * pdc_pci_config_read - read PCI config space. | |
889 | * @hpa token from PDC to indicate which PCI device | |
890 | * @pci_addr configuration space address to read from | |
891 | * | |
892 | * Read PCI Configuration space *before* linux PCI subsystem is running. | |
893 | */ | |
894 | unsigned int pdc_pci_config_read(void *hpa, unsigned long cfg_addr) | |
895 | { | |
896 | int retval; | |
09690b18 KM |
897 | unsigned long flags; |
898 | ||
899 | spin_lock_irqsave(&pdc_lock, flags); | |
1da177e4 LT |
900 | pdc_result[0] = 0; |
901 | pdc_result[1] = 0; | |
902 | retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_READ_CONFIG, | |
903 | __pa(pdc_result), hpa, cfg_addr&~3UL, 4UL); | |
09690b18 KM |
904 | spin_unlock_irqrestore(&pdc_lock, flags); |
905 | ||
1da177e4 LT |
906 | return retval ? ~0 : (unsigned int) pdc_result[0]; |
907 | } | |
908 | ||
909 | ||
910 | /** | |
911 | * pdc_pci_config_write - read PCI config space. | |
912 | * @hpa token from PDC to indicate which PCI device | |
913 | * @pci_addr configuration space address to write | |
914 | * @val value we want in the 32-bit register | |
915 | * | |
916 | * Write PCI Configuration space *before* linux PCI subsystem is running. | |
917 | */ | |
918 | void pdc_pci_config_write(void *hpa, unsigned long cfg_addr, unsigned int val) | |
919 | { | |
920 | int retval; | |
09690b18 KM |
921 | unsigned long flags; |
922 | ||
923 | spin_lock_irqsave(&pdc_lock, flags); | |
1da177e4 LT |
924 | pdc_result[0] = 0; |
925 | retval = mem_pdc_call(PDC_PCI_INDEX, PDC_PCI_WRITE_CONFIG, | |
926 | __pa(pdc_result), hpa, | |
927 | cfg_addr&~3UL, 4UL, (unsigned long) val); | |
09690b18 KM |
928 | spin_unlock_irqrestore(&pdc_lock, flags); |
929 | ||
1da177e4 LT |
930 | return retval; |
931 | } | |
932 | #endif /* UNTESTED CODE */ | |
933 | ||
934 | /** | |
935 | * pdc_tod_read - Read the Time-Of-Day clock. | |
936 | * @tod: The return buffer: | |
937 | * | |
938 | * Read the Time-Of-Day clock | |
939 | */ | |
940 | int pdc_tod_read(struct pdc_tod *tod) | |
941 | { | |
942 | int retval; | |
09690b18 | 943 | unsigned long flags; |
1da177e4 | 944 | |
09690b18 | 945 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
946 | retval = mem_pdc_call(PDC_TOD, PDC_TOD_READ, __pa(pdc_result), 0); |
947 | convert_to_wide(pdc_result); | |
948 | memcpy(tod, pdc_result, sizeof(*tod)); | |
09690b18 | 949 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
950 | |
951 | return retval; | |
952 | } | |
953 | EXPORT_SYMBOL(pdc_tod_read); | |
954 | ||
955 | /** | |
956 | * pdc_tod_set - Set the Time-Of-Day clock. | |
957 | * @sec: The number of seconds since epoch. | |
958 | * @usec: The number of micro seconds. | |
959 | * | |
960 | * Set the Time-Of-Day clock. | |
961 | */ | |
962 | int pdc_tod_set(unsigned long sec, unsigned long usec) | |
963 | { | |
964 | int retval; | |
09690b18 | 965 | unsigned long flags; |
1da177e4 | 966 | |
09690b18 | 967 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 | 968 | retval = mem_pdc_call(PDC_TOD, PDC_TOD_WRITE, sec, usec); |
09690b18 | 969 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
970 | |
971 | return retval; | |
972 | } | |
973 | EXPORT_SYMBOL(pdc_tod_set); | |
974 | ||
a8f44e38 | 975 | #ifdef CONFIG_64BIT |
1da177e4 LT |
976 | int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr, |
977 | struct pdc_memory_table *tbl, unsigned long entries) | |
978 | { | |
979 | int retval; | |
09690b18 | 980 | unsigned long flags; |
1da177e4 | 981 | |
09690b18 | 982 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
983 | retval = mem_pdc_call(PDC_MEM, PDC_MEM_TABLE, __pa(pdc_result), __pa(pdc_result2), entries); |
984 | convert_to_wide(pdc_result); | |
985 | memcpy(r_addr, pdc_result, sizeof(*r_addr)); | |
986 | memcpy(tbl, pdc_result2, entries * sizeof(*tbl)); | |
09690b18 | 987 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
988 | |
989 | return retval; | |
990 | } | |
a8f44e38 | 991 | #endif /* CONFIG_64BIT */ |
1da177e4 LT |
992 | |
993 | /* FIXME: Is this pdc used? I could not find type reference to ftc_bitmap | |
994 | * so I guessed at unsigned long. Someone who knows what this does, can fix | |
995 | * it later. :) | |
996 | */ | |
997 | int pdc_do_firm_test_reset(unsigned long ftc_bitmap) | |
998 | { | |
999 | int retval; | |
09690b18 | 1000 | unsigned long flags; |
1da177e4 | 1001 | |
09690b18 | 1002 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
1003 | retval = mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_FIRM_TEST_RESET, |
1004 | PDC_FIRM_TEST_MAGIC, ftc_bitmap); | |
09690b18 | 1005 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1006 | |
1007 | return retval; | |
1008 | } | |
1009 | ||
1010 | /* | |
1011 | * pdc_do_reset - Reset the system. | |
1012 | * | |
1013 | * Reset the system. | |
1014 | */ | |
1015 | int pdc_do_reset(void) | |
1016 | { | |
1017 | int retval; | |
09690b18 | 1018 | unsigned long flags; |
1da177e4 | 1019 | |
09690b18 | 1020 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 | 1021 | retval = mem_pdc_call(PDC_BROADCAST_RESET, PDC_DO_RESET); |
09690b18 | 1022 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1023 | |
1024 | return retval; | |
1025 | } | |
1026 | ||
1027 | /* | |
1028 | * pdc_soft_power_info - Enable soft power switch. | |
1029 | * @power_reg: address of soft power register | |
1030 | * | |
1031 | * Return the absolute address of the soft power switch register | |
1032 | */ | |
1033 | int __init pdc_soft_power_info(unsigned long *power_reg) | |
1034 | { | |
1035 | int retval; | |
09690b18 | 1036 | unsigned long flags; |
1da177e4 LT |
1037 | |
1038 | *power_reg = (unsigned long) (-1); | |
1039 | ||
09690b18 | 1040 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
1041 | retval = mem_pdc_call(PDC_SOFT_POWER, PDC_SOFT_POWER_INFO, __pa(pdc_result), 0); |
1042 | if (retval == PDC_OK) { | |
1043 | convert_to_wide(pdc_result); | |
1044 | *power_reg = f_extend(pdc_result[0]); | |
1045 | } | |
09690b18 | 1046 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1047 | |
1048 | return retval; | |
1049 | } | |
1050 | ||
1051 | /* | |
1052 | * pdc_soft_power_button - Control the soft power button behaviour | |
1053 | * @sw_control: 0 for hardware control, 1 for software control | |
1054 | * | |
1055 | * | |
1056 | * This PDC function places the soft power button under software or | |
1057 | * hardware control. | |
1058 | * Under software control the OS may control to when to allow to shut | |
1059 | * down the system. Under hardware control pressing the power button | |
1060 | * powers off the system immediately. | |
1061 | */ | |
1062 | int pdc_soft_power_button(int sw_control) | |
1063 | { | |
1064 | int retval; | |
09690b18 KM |
1065 | unsigned long flags; |
1066 | ||
1067 | spin_lock_irqsave(&pdc_lock, flags); | |
1da177e4 | 1068 | retval = mem_pdc_call(PDC_SOFT_POWER, PDC_SOFT_POWER_ENABLE, __pa(pdc_result), sw_control); |
09690b18 KM |
1069 | spin_unlock_irqrestore(&pdc_lock, flags); |
1070 | ||
1da177e4 LT |
1071 | return retval; |
1072 | } | |
1073 | ||
1074 | /* | |
1075 | * pdc_io_reset - Hack to avoid overlapping range registers of Bridges devices. | |
1076 | * Primarily a problem on T600 (which parisc-linux doesn't support) but | |
1077 | * who knows what other platform firmware might do with this OS "hook". | |
1078 | */ | |
1079 | void pdc_io_reset(void) | |
1080 | { | |
09690b18 KM |
1081 | unsigned long flags; |
1082 | ||
1083 | spin_lock_irqsave(&pdc_lock, flags); | |
1da177e4 | 1084 | mem_pdc_call(PDC_IO, PDC_IO_RESET, 0); |
09690b18 | 1085 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1086 | } |
1087 | ||
1088 | /* | |
1089 | * pdc_io_reset_devices - Hack to Stop USB controller | |
1090 | * | |
1091 | * If PDC used the usb controller, the usb controller | |
1092 | * is still running and will crash the machines during iommu | |
1093 | * setup, because of still running DMA. This PDC call | |
1094 | * stops the USB controller. | |
1095 | * Normally called after calling pdc_io_reset(). | |
1096 | */ | |
1097 | void pdc_io_reset_devices(void) | |
1098 | { | |
09690b18 KM |
1099 | unsigned long flags; |
1100 | ||
1101 | spin_lock_irqsave(&pdc_lock, flags); | |
1da177e4 | 1102 | mem_pdc_call(PDC_IO, PDC_IO_RESET_DEVICES, 0); |
09690b18 | 1103 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1104 | } |
1105 | ||
ef1afd4d KM |
1106 | /* locked by pdc_console_lock */ |
1107 | static int __attribute__((aligned(8))) iodc_retbuf[32]; | |
1108 | static char __attribute__((aligned(64))) iodc_dbuf[4096]; | |
1da177e4 LT |
1109 | |
1110 | /** | |
721fdf34 KM |
1111 | * pdc_iodc_print - Console print using IODC. |
1112 | * @str: the string to output. | |
1113 | * @count: length of str | |
1da177e4 LT |
1114 | * |
1115 | * Note that only these special chars are architected for console IODC io: | |
1116 | * BEL, BS, CR, and LF. Others are passed through. | |
1117 | * Since the HP console requires CR+LF to perform a 'newline', we translate | |
1118 | * "\n" to "\r\n". | |
1119 | */ | |
ef1afd4d | 1120 | int pdc_iodc_print(const unsigned char *str, unsigned count) |
1da177e4 | 1121 | { |
721fdf34 | 1122 | static int posx; /* for simple TAB-Simulation... */ |
721fdf34 | 1123 | unsigned int i; |
c53421b1 | 1124 | unsigned long flags; |
1da177e4 | 1125 | |
ef1afd4d | 1126 | for (i = 0; i < count && i < 79;) { |
721fdf34 KM |
1127 | switch(str[i]) { |
1128 | case '\n': | |
1129 | iodc_dbuf[i+0] = '\r'; | |
1130 | iodc_dbuf[i+1] = '\n'; | |
1131 | i += 2; | |
1132 | posx = 0; | |
ef1afd4d | 1133 | goto print; |
721fdf34 KM |
1134 | case '\t': |
1135 | while (posx & 7) { | |
1136 | iodc_dbuf[i] = ' '; | |
1137 | i++, posx++; | |
1138 | } | |
1139 | break; | |
1140 | case '\b': /* BS */ | |
1141 | posx -= 2; | |
1142 | default: | |
1143 | iodc_dbuf[i] = str[i]; | |
1144 | i++, posx++; | |
1145 | break; | |
1146 | } | |
1147 | } | |
1da177e4 | 1148 | |
ef1afd4d KM |
1149 | /* if we're at the end of line, and not already inserting a newline, |
1150 | * insert one anyway. iodc console doesn't claim to support >79 char | |
1151 | * lines. don't account for this in the return value. | |
1152 | */ | |
1153 | if (i == 79 && iodc_dbuf[i-1] != '\n') { | |
1154 | iodc_dbuf[i+0] = '\r'; | |
1155 | iodc_dbuf[i+1] = '\n'; | |
1156 | } | |
1157 | ||
1158 | print: | |
1da177e4 LT |
1159 | spin_lock_irqsave(&pdc_lock, flags); |
1160 | real32_call(PAGE0->mem_cons.iodc_io, | |
1161 | (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT, | |
1162 | PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers), | |
721fdf34 | 1163 | __pa(iodc_retbuf), 0, __pa(iodc_dbuf), i, 0); |
1da177e4 | 1164 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 | 1165 | |
721fdf34 | 1166 | return i; |
1da177e4 LT |
1167 | } |
1168 | ||
1169 | /** | |
1170 | * pdc_iodc_getc - Read a character (non-blocking) from the PDC console. | |
1171 | * | |
1172 | * Read a character (non-blocking) from the PDC console, returns -1 if | |
1173 | * key is not present. | |
1174 | */ | |
1175 | int pdc_iodc_getc(void) | |
1176 | { | |
1da177e4 LT |
1177 | int ch; |
1178 | int status; | |
ef1afd4d | 1179 | unsigned long flags; |
1da177e4 LT |
1180 | |
1181 | /* Bail if no console input device. */ | |
1182 | if (!PAGE0->mem_kbd.iodc_io) | |
1183 | return 0; | |
1184 | ||
1185 | /* wait for a keyboard (rs232)-input */ | |
1186 | spin_lock_irqsave(&pdc_lock, flags); | |
1187 | real32_call(PAGE0->mem_kbd.iodc_io, | |
1188 | (unsigned long)PAGE0->mem_kbd.hpa, ENTRY_IO_CIN, | |
1189 | PAGE0->mem_kbd.spa, __pa(PAGE0->mem_kbd.dp.layers), | |
1190 | __pa(iodc_retbuf), 0, __pa(iodc_dbuf), 1, 0); | |
1191 | ||
1192 | ch = *iodc_dbuf; | |
1193 | status = *iodc_retbuf; | |
1194 | spin_unlock_irqrestore(&pdc_lock, flags); | |
1195 | ||
1196 | if (status == 0) | |
1197 | return -1; | |
1198 | ||
1199 | return ch; | |
1200 | } | |
1201 | ||
1202 | int pdc_sti_call(unsigned long func, unsigned long flags, | |
1203 | unsigned long inptr, unsigned long outputr, | |
1204 | unsigned long glob_cfg) | |
1205 | { | |
1206 | int retval; | |
09690b18 | 1207 | unsigned long irqflags; |
1da177e4 | 1208 | |
09690b18 | 1209 | spin_lock_irqsave(&pdc_lock, irqflags); |
1da177e4 | 1210 | retval = real32_call(func, flags, inptr, outputr, glob_cfg); |
09690b18 | 1211 | spin_unlock_irqrestore(&pdc_lock, irqflags); |
1da177e4 LT |
1212 | |
1213 | return retval; | |
1214 | } | |
1215 | EXPORT_SYMBOL(pdc_sti_call); | |
1216 | ||
a8f44e38 | 1217 | #ifdef CONFIG_64BIT |
1da177e4 LT |
1218 | /** |
1219 | * pdc_pat_cell_get_number - Returns the cell number. | |
1220 | * @cell_info: The return buffer. | |
1221 | * | |
1222 | * This PDC call returns the cell number of the cell from which the call | |
1223 | * is made. | |
1224 | */ | |
1225 | int pdc_pat_cell_get_number(struct pdc_pat_cell_num *cell_info) | |
1226 | { | |
1227 | int retval; | |
09690b18 | 1228 | unsigned long flags; |
1da177e4 | 1229 | |
09690b18 | 1230 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
1231 | retval = mem_pdc_call(PDC_PAT_CELL, PDC_PAT_CELL_GET_NUMBER, __pa(pdc_result)); |
1232 | memcpy(cell_info, pdc_result, sizeof(*cell_info)); | |
09690b18 | 1233 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1234 | |
1235 | return retval; | |
1236 | } | |
1237 | ||
1238 | /** | |
1239 | * pdc_pat_cell_module - Retrieve the cell's module information. | |
1240 | * @actcnt: The number of bytes written to mem_addr. | |
1241 | * @ploc: The physical location. | |
1242 | * @mod: The module index. | |
1243 | * @view_type: The view of the address type. | |
1244 | * @mem_addr: The return buffer. | |
1245 | * | |
1246 | * This PDC call returns information about each module attached to the cell | |
1247 | * at the specified location. | |
1248 | */ | |
1249 | int pdc_pat_cell_module(unsigned long *actcnt, unsigned long ploc, unsigned long mod, | |
1250 | unsigned long view_type, void *mem_addr) | |
1251 | { | |
1252 | int retval; | |
09690b18 | 1253 | unsigned long flags; |
1da177e4 LT |
1254 | static struct pdc_pat_cell_mod_maddr_block result __attribute__ ((aligned (8))); |
1255 | ||
09690b18 | 1256 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
1257 | retval = mem_pdc_call(PDC_PAT_CELL, PDC_PAT_CELL_MODULE, __pa(pdc_result), |
1258 | ploc, mod, view_type, __pa(&result)); | |
1259 | if(!retval) { | |
1260 | *actcnt = pdc_result[0]; | |
1261 | memcpy(mem_addr, &result, *actcnt); | |
1262 | } | |
09690b18 | 1263 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1264 | |
1265 | return retval; | |
1266 | } | |
1267 | ||
1268 | /** | |
1269 | * pdc_pat_cpu_get_number - Retrieve the cpu number. | |
1270 | * @cpu_info: The return buffer. | |
1271 | * @hpa: The Hard Physical Address of the CPU. | |
1272 | * | |
1273 | * Retrieve the cpu number for the cpu at the specified HPA. | |
1274 | */ | |
1275 | int pdc_pat_cpu_get_number(struct pdc_pat_cpu_num *cpu_info, void *hpa) | |
1276 | { | |
1277 | int retval; | |
09690b18 | 1278 | unsigned long flags; |
1da177e4 | 1279 | |
09690b18 | 1280 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
1281 | retval = mem_pdc_call(PDC_PAT_CPU, PDC_PAT_CPU_GET_NUMBER, |
1282 | __pa(&pdc_result), hpa); | |
1283 | memcpy(cpu_info, pdc_result, sizeof(*cpu_info)); | |
09690b18 | 1284 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1285 | |
1286 | return retval; | |
1287 | } | |
1288 | ||
1289 | /** | |
1290 | * pdc_pat_get_irt_size - Retrieve the number of entries in the cell's interrupt table. | |
1291 | * @num_entries: The return value. | |
1292 | * @cell_num: The target cell. | |
1293 | * | |
1294 | * This PDC function returns the number of entries in the specified cell's | |
1295 | * interrupt table. | |
1296 | */ | |
1297 | int pdc_pat_get_irt_size(unsigned long *num_entries, unsigned long cell_num) | |
1298 | { | |
1299 | int retval; | |
09690b18 | 1300 | unsigned long flags; |
1da177e4 | 1301 | |
09690b18 | 1302 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
1303 | retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_GET_PCI_ROUTING_TABLE_SIZE, |
1304 | __pa(pdc_result), cell_num); | |
1305 | *num_entries = pdc_result[0]; | |
09690b18 | 1306 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1307 | |
1308 | return retval; | |
1309 | } | |
1310 | ||
1311 | /** | |
1312 | * pdc_pat_get_irt - Retrieve the cell's interrupt table. | |
1313 | * @r_addr: The return buffer. | |
1314 | * @cell_num: The target cell. | |
1315 | * | |
1316 | * This PDC function returns the actual interrupt table for the specified cell. | |
1317 | */ | |
1318 | int pdc_pat_get_irt(void *r_addr, unsigned long cell_num) | |
1319 | { | |
1320 | int retval; | |
09690b18 | 1321 | unsigned long flags; |
1da177e4 | 1322 | |
09690b18 | 1323 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
1324 | retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_GET_PCI_ROUTING_TABLE, |
1325 | __pa(r_addr), cell_num); | |
09690b18 | 1326 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1327 | |
1328 | return retval; | |
1329 | } | |
1330 | ||
1331 | /** | |
1332 | * pdc_pat_pd_get_addr_map - Retrieve information about memory address ranges. | |
1333 | * @actlen: The return buffer. | |
1334 | * @mem_addr: Pointer to the memory buffer. | |
1335 | * @count: The number of bytes to read from the buffer. | |
1336 | * @offset: The offset with respect to the beginning of the buffer. | |
1337 | * | |
1338 | */ | |
1339 | int pdc_pat_pd_get_addr_map(unsigned long *actual_len, void *mem_addr, | |
1340 | unsigned long count, unsigned long offset) | |
1341 | { | |
1342 | int retval; | |
09690b18 | 1343 | unsigned long flags; |
1da177e4 | 1344 | |
09690b18 | 1345 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
1346 | retval = mem_pdc_call(PDC_PAT_PD, PDC_PAT_PD_GET_ADDR_MAP, __pa(pdc_result), |
1347 | __pa(pdc_result2), count, offset); | |
1348 | *actual_len = pdc_result[0]; | |
1349 | memcpy(mem_addr, pdc_result2, *actual_len); | |
09690b18 | 1350 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1351 | |
1352 | return retval; | |
1353 | } | |
1354 | ||
1355 | /** | |
1356 | * pdc_pat_io_pci_cfg_read - Read PCI configuration space. | |
1357 | * @pci_addr: PCI configuration space address for which the read request is being made. | |
1358 | * @pci_size: Size of read in bytes. Valid values are 1, 2, and 4. | |
1359 | * @mem_addr: Pointer to return memory buffer. | |
1360 | * | |
1361 | */ | |
1362 | int pdc_pat_io_pci_cfg_read(unsigned long pci_addr, int pci_size, u32 *mem_addr) | |
1363 | { | |
1364 | int retval; | |
09690b18 KM |
1365 | unsigned long flags; |
1366 | ||
1367 | spin_lock_irqsave(&pdc_lock, flags); | |
1da177e4 LT |
1368 | retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_PCI_CONFIG_READ, |
1369 | __pa(pdc_result), pci_addr, pci_size); | |
1370 | switch(pci_size) { | |
1371 | case 1: *(u8 *) mem_addr = (u8) pdc_result[0]; | |
1372 | case 2: *(u16 *)mem_addr = (u16) pdc_result[0]; | |
1373 | case 4: *(u32 *)mem_addr = (u32) pdc_result[0]; | |
1374 | } | |
09690b18 | 1375 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1376 | |
1377 | return retval; | |
1378 | } | |
1379 | ||
1380 | /** | |
1381 | * pdc_pat_io_pci_cfg_write - Retrieve information about memory address ranges. | |
1382 | * @pci_addr: PCI configuration space address for which the write request is being made. | |
1383 | * @pci_size: Size of write in bytes. Valid values are 1, 2, and 4. | |
1384 | * @value: Pointer to 1, 2, or 4 byte value in low order end of argument to be | |
1385 | * written to PCI Config space. | |
1386 | * | |
1387 | */ | |
1388 | int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val) | |
1389 | { | |
1390 | int retval; | |
09690b18 | 1391 | unsigned long flags; |
1da177e4 | 1392 | |
09690b18 | 1393 | spin_lock_irqsave(&pdc_lock, flags); |
1da177e4 LT |
1394 | retval = mem_pdc_call(PDC_PAT_IO, PDC_PAT_IO_PCI_CONFIG_WRITE, |
1395 | pci_addr, pci_size, val); | |
09690b18 | 1396 | spin_unlock_irqrestore(&pdc_lock, flags); |
1da177e4 LT |
1397 | |
1398 | return retval; | |
1399 | } | |
a8f44e38 | 1400 | #endif /* CONFIG_64BIT */ |
1da177e4 LT |
1401 | |
1402 | ||
1403 | /***************** 32-bit real-mode calls ***********/ | |
1404 | /* The struct below is used | |
1405 | * to overlay real_stack (real2.S), preparing a 32-bit call frame. | |
1406 | * real32_call_asm() then uses this stack in narrow real mode | |
1407 | */ | |
1408 | ||
1409 | struct narrow_stack { | |
1410 | /* use int, not long which is 64 bits */ | |
1411 | unsigned int arg13; | |
1412 | unsigned int arg12; | |
1413 | unsigned int arg11; | |
1414 | unsigned int arg10; | |
1415 | unsigned int arg9; | |
1416 | unsigned int arg8; | |
1417 | unsigned int arg7; | |
1418 | unsigned int arg6; | |
1419 | unsigned int arg5; | |
1420 | unsigned int arg4; | |
1421 | unsigned int arg3; | |
1422 | unsigned int arg2; | |
1423 | unsigned int arg1; | |
1424 | unsigned int arg0; | |
1425 | unsigned int frame_marker[8]; | |
1426 | unsigned int sp; | |
1427 | /* in reality, there's nearly 8k of stack after this */ | |
1428 | }; | |
1429 | ||
1430 | long real32_call(unsigned long fn, ...) | |
1431 | { | |
1432 | va_list args; | |
1433 | extern struct narrow_stack real_stack; | |
1434 | extern unsigned long real32_call_asm(unsigned int *, | |
1435 | unsigned int *, | |
1436 | unsigned int); | |
1437 | ||
1438 | va_start(args, fn); | |
1439 | real_stack.arg0 = va_arg(args, unsigned int); | |
1440 | real_stack.arg1 = va_arg(args, unsigned int); | |
1441 | real_stack.arg2 = va_arg(args, unsigned int); | |
1442 | real_stack.arg3 = va_arg(args, unsigned int); | |
1443 | real_stack.arg4 = va_arg(args, unsigned int); | |
1444 | real_stack.arg5 = va_arg(args, unsigned int); | |
1445 | real_stack.arg6 = va_arg(args, unsigned int); | |
1446 | real_stack.arg7 = va_arg(args, unsigned int); | |
1447 | real_stack.arg8 = va_arg(args, unsigned int); | |
1448 | real_stack.arg9 = va_arg(args, unsigned int); | |
1449 | real_stack.arg10 = va_arg(args, unsigned int); | |
1450 | real_stack.arg11 = va_arg(args, unsigned int); | |
1451 | real_stack.arg12 = va_arg(args, unsigned int); | |
1452 | real_stack.arg13 = va_arg(args, unsigned int); | |
1453 | va_end(args); | |
1454 | ||
1455 | return real32_call_asm(&real_stack.sp, &real_stack.arg0, fn); | |
1456 | } | |
1457 | ||
a8f44e38 | 1458 | #ifdef CONFIG_64BIT |
1da177e4 LT |
1459 | /***************** 64-bit real-mode calls ***********/ |
1460 | ||
1461 | struct wide_stack { | |
1462 | unsigned long arg0; | |
1463 | unsigned long arg1; | |
1464 | unsigned long arg2; | |
1465 | unsigned long arg3; | |
1466 | unsigned long arg4; | |
1467 | unsigned long arg5; | |
1468 | unsigned long arg6; | |
1469 | unsigned long arg7; | |
1470 | unsigned long arg8; | |
1471 | unsigned long arg9; | |
1472 | unsigned long arg10; | |
1473 | unsigned long arg11; | |
1474 | unsigned long arg12; | |
1475 | unsigned long arg13; | |
1476 | unsigned long frame_marker[2]; /* rp, previous sp */ | |
1477 | unsigned long sp; | |
1478 | /* in reality, there's nearly 8k of stack after this */ | |
1479 | }; | |
1480 | ||
1481 | long real64_call(unsigned long fn, ...) | |
1482 | { | |
1483 | va_list args; | |
1484 | extern struct wide_stack real64_stack; | |
1485 | extern unsigned long real64_call_asm(unsigned long *, | |
1486 | unsigned long *, | |
1487 | unsigned long); | |
1488 | ||
1489 | va_start(args, fn); | |
1490 | real64_stack.arg0 = va_arg(args, unsigned long); | |
1491 | real64_stack.arg1 = va_arg(args, unsigned long); | |
1492 | real64_stack.arg2 = va_arg(args, unsigned long); | |
1493 | real64_stack.arg3 = va_arg(args, unsigned long); | |
1494 | real64_stack.arg4 = va_arg(args, unsigned long); | |
1495 | real64_stack.arg5 = va_arg(args, unsigned long); | |
1496 | real64_stack.arg6 = va_arg(args, unsigned long); | |
1497 | real64_stack.arg7 = va_arg(args, unsigned long); | |
1498 | real64_stack.arg8 = va_arg(args, unsigned long); | |
1499 | real64_stack.arg9 = va_arg(args, unsigned long); | |
1500 | real64_stack.arg10 = va_arg(args, unsigned long); | |
1501 | real64_stack.arg11 = va_arg(args, unsigned long); | |
1502 | real64_stack.arg12 = va_arg(args, unsigned long); | |
1503 | real64_stack.arg13 = va_arg(args, unsigned long); | |
1504 | va_end(args); | |
1505 | ||
1506 | return real64_call_asm(&real64_stack.sp, &real64_stack.arg0, fn); | |
1507 | } | |
1508 | ||
a8f44e38 | 1509 | #endif /* CONFIG_64BIT */ |
1da177e4 | 1510 |