sn_sal.h 32 KB

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  1. #ifndef _ASM_IA64_SN_SN_SAL_H
  2. #define _ASM_IA64_SN_SN_SAL_H
  3. /*
  4. * System Abstraction Layer definitions for IA64
  5. *
  6. * This file is subject to the terms and conditions of the GNU General Public
  7. * License. See the file "COPYING" in the main directory of this archive
  8. * for more details.
  9. *
  10. * Copyright (c) 2000-2006 Silicon Graphics, Inc. All rights reserved.
  11. */
  12. #include <asm/sal.h>
  13. #include <asm/sn/sn_cpuid.h>
  14. #include <asm/sn/arch.h>
  15. #include <asm/sn/geo.h>
  16. #include <asm/sn/nodepda.h>
  17. #include <asm/sn/shub_mmr.h>
  18. // SGI Specific Calls
  19. #define SN_SAL_POD_MODE 0x02000001
  20. #define SN_SAL_SYSTEM_RESET 0x02000002
  21. #define SN_SAL_PROBE 0x02000003
  22. #define SN_SAL_GET_MASTER_NASID 0x02000004
  23. #define SN_SAL_GET_KLCONFIG_ADDR 0x02000005
  24. #define SN_SAL_LOG_CE 0x02000006
  25. #define SN_SAL_REGISTER_CE 0x02000007
  26. #define SN_SAL_GET_PARTITION_ADDR 0x02000009
  27. #define SN_SAL_XP_ADDR_REGION 0x0200000f
  28. #define SN_SAL_NO_FAULT_ZONE_VIRTUAL 0x02000010
  29. #define SN_SAL_NO_FAULT_ZONE_PHYSICAL 0x02000011
  30. #define SN_SAL_PRINT_ERROR 0x02000012
  31. #define SN_SAL_SET_ERROR_HANDLING_FEATURES 0x0200001a // reentrant
  32. #define SN_SAL_GET_FIT_COMPT 0x0200001b // reentrant
  33. #define SN_SAL_GET_SAPIC_INFO 0x0200001d
  34. #define SN_SAL_GET_SN_INFO 0x0200001e
  35. #define SN_SAL_CONSOLE_PUTC 0x02000021
  36. #define SN_SAL_CONSOLE_GETC 0x02000022
  37. #define SN_SAL_CONSOLE_PUTS 0x02000023
  38. #define SN_SAL_CONSOLE_GETS 0x02000024
  39. #define SN_SAL_CONSOLE_GETS_TIMEOUT 0x02000025
  40. #define SN_SAL_CONSOLE_POLL 0x02000026
  41. #define SN_SAL_CONSOLE_INTR 0x02000027
  42. #define SN_SAL_CONSOLE_PUTB 0x02000028
  43. #define SN_SAL_CONSOLE_XMIT_CHARS 0x0200002a
  44. #define SN_SAL_CONSOLE_READC 0x0200002b
  45. #define SN_SAL_SYSCTL_OP 0x02000030
  46. #define SN_SAL_SYSCTL_MODID_GET 0x02000031
  47. #define SN_SAL_SYSCTL_GET 0x02000032
  48. #define SN_SAL_SYSCTL_IOBRICK_MODULE_GET 0x02000033
  49. #define SN_SAL_SYSCTL_IO_PORTSPEED_GET 0x02000035
  50. #define SN_SAL_SYSCTL_SLAB_GET 0x02000036
  51. #define SN_SAL_BUS_CONFIG 0x02000037
  52. #define SN_SAL_SYS_SERIAL_GET 0x02000038
  53. #define SN_SAL_PARTITION_SERIAL_GET 0x02000039
  54. #define SN_SAL_SYSCTL_PARTITION_GET 0x0200003a
  55. #define SN_SAL_SYSTEM_POWER_DOWN 0x0200003b
  56. #define SN_SAL_GET_MASTER_BASEIO_NASID 0x0200003c
  57. #define SN_SAL_COHERENCE 0x0200003d
  58. #define SN_SAL_MEMPROTECT 0x0200003e
  59. #define SN_SAL_SYSCTL_FRU_CAPTURE 0x0200003f
  60. #define SN_SAL_SYSCTL_IOBRICK_PCI_OP 0x02000042 // reentrant
  61. #define SN_SAL_IROUTER_OP 0x02000043
  62. #define SN_SAL_SYSCTL_EVENT 0x02000044
  63. #define SN_SAL_IOIF_INTERRUPT 0x0200004a
  64. #define SN_SAL_HWPERF_OP 0x02000050 // lock
  65. #define SN_SAL_IOIF_ERROR_INTERRUPT 0x02000051
  66. #define SN_SAL_IOIF_PCI_SAFE 0x02000052
  67. #define SN_SAL_IOIF_SLOT_ENABLE 0x02000053
  68. #define SN_SAL_IOIF_SLOT_DISABLE 0x02000054
  69. #define SN_SAL_IOIF_GET_HUBDEV_INFO 0x02000055
  70. #define SN_SAL_IOIF_GET_PCIBUS_INFO 0x02000056
  71. #define SN_SAL_IOIF_GET_PCIDEV_INFO 0x02000057
  72. #define SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST 0x02000058 // deprecated
  73. #define SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST 0x0200005a
  74. #define SN_SAL_IOIF_INIT 0x0200005f
  75. #define SN_SAL_HUB_ERROR_INTERRUPT 0x02000060
  76. #define SN_SAL_BTE_RECOVER 0x02000061
  77. #define SN_SAL_RESERVED_DO_NOT_USE 0x02000062
  78. #define SN_SAL_IOIF_GET_PCI_TOPOLOGY 0x02000064
  79. #define SN_SAL_GET_PROM_FEATURE_SET 0x02000065
  80. #define SN_SAL_SET_OS_FEATURE_SET 0x02000066
  81. #define SN_SAL_INJECT_ERROR 0x02000067
  82. #define SN_SAL_SET_CPU_NUMBER 0x02000068
  83. #define SN_SAL_KERNEL_LAUNCH_EVENT 0x02000069
  84. /*
  85. * Service-specific constants
  86. */
  87. /* Console interrupt manipulation */
  88. /* action codes */
  89. #define SAL_CONSOLE_INTR_OFF 0 /* turn the interrupt off */
  90. #define SAL_CONSOLE_INTR_ON 1 /* turn the interrupt on */
  91. #define SAL_CONSOLE_INTR_STATUS 2 /* retrieve the interrupt status */
  92. /* interrupt specification & status return codes */
  93. #define SAL_CONSOLE_INTR_XMIT 1 /* output interrupt */
  94. #define SAL_CONSOLE_INTR_RECV 2 /* input interrupt */
  95. /* interrupt handling */
  96. #define SAL_INTR_ALLOC 1
  97. #define SAL_INTR_FREE 2
  98. /*
  99. * operations available on the generic SN_SAL_SYSCTL_OP
  100. * runtime service
  101. */
  102. #define SAL_SYSCTL_OP_IOBOARD 0x0001 /* retrieve board type */
  103. #define SAL_SYSCTL_OP_TIO_JLCK_RST 0x0002 /* issue TIO clock reset */
  104. /*
  105. * IRouter (i.e. generalized system controller) operations
  106. */
  107. #define SAL_IROUTER_OPEN 0 /* open a subchannel */
  108. #define SAL_IROUTER_CLOSE 1 /* close a subchannel */
  109. #define SAL_IROUTER_SEND 2 /* send part of an IRouter packet */
  110. #define SAL_IROUTER_RECV 3 /* receive part of an IRouter packet */
  111. #define SAL_IROUTER_INTR_STATUS 4 /* check the interrupt status for
  112. * an open subchannel
  113. */
  114. #define SAL_IROUTER_INTR_ON 5 /* enable an interrupt */
  115. #define SAL_IROUTER_INTR_OFF 6 /* disable an interrupt */
  116. #define SAL_IROUTER_INIT 7 /* initialize IRouter driver */
  117. /* IRouter interrupt mask bits */
  118. #define SAL_IROUTER_INTR_XMIT SAL_CONSOLE_INTR_XMIT
  119. #define SAL_IROUTER_INTR_RECV SAL_CONSOLE_INTR_RECV
  120. /*
  121. * Error Handling Features
  122. */
  123. #define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV 0x1 // obsolete
  124. #define SAL_ERR_FEAT_LOG_SBES 0x2 // obsolete
  125. #define SAL_ERR_FEAT_MFR_OVERRIDE 0x4
  126. #define SAL_ERR_FEAT_SBE_THRESHOLD 0xffff0000
  127. /*
  128. * SAL Error Codes
  129. */
  130. #define SALRET_MORE_PASSES 1
  131. #define SALRET_OK 0
  132. #define SALRET_NOT_IMPLEMENTED (-1)
  133. #define SALRET_INVALID_ARG (-2)
  134. #define SALRET_ERROR (-3)
  135. #define SN_SAL_FAKE_PROM 0x02009999
  136. /**
  137. * sn_sal_revision - get the SGI SAL revision number
  138. *
  139. * The SGI PROM stores its version in the sal_[ab]_rev_(major|minor).
  140. * This routine simply extracts the major and minor values and
  141. * presents them in a u32 format.
  142. *
  143. * For example, version 4.05 would be represented at 0x0405.
  144. */
  145. static inline u32
  146. sn_sal_rev(void)
  147. {
  148. struct ia64_sal_systab *systab = __va(efi.sal_systab);
  149. return (u32)(systab->sal_b_rev_major << 8 | systab->sal_b_rev_minor);
  150. }
  151. /*
  152. * Returns the master console nasid, if the call fails, return an illegal
  153. * value.
  154. */
  155. static inline u64
  156. ia64_sn_get_console_nasid(void)
  157. {
  158. struct ia64_sal_retval ret_stuff;
  159. ret_stuff.status = 0;
  160. ret_stuff.v0 = 0;
  161. ret_stuff.v1 = 0;
  162. ret_stuff.v2 = 0;
  163. SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_NASID, 0, 0, 0, 0, 0, 0, 0);
  164. if (ret_stuff.status < 0)
  165. return ret_stuff.status;
  166. /* Master console nasid is in 'v0' */
  167. return ret_stuff.v0;
  168. }
  169. /*
  170. * Returns the master baseio nasid, if the call fails, return an illegal
  171. * value.
  172. */
  173. static inline u64
  174. ia64_sn_get_master_baseio_nasid(void)
  175. {
  176. struct ia64_sal_retval ret_stuff;
  177. ret_stuff.status = 0;
  178. ret_stuff.v0 = 0;
  179. ret_stuff.v1 = 0;
  180. ret_stuff.v2 = 0;
  181. SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_BASEIO_NASID, 0, 0, 0, 0, 0, 0, 0);
  182. if (ret_stuff.status < 0)
  183. return ret_stuff.status;
  184. /* Master baseio nasid is in 'v0' */
  185. return ret_stuff.v0;
  186. }
  187. static inline void *
  188. ia64_sn_get_klconfig_addr(nasid_t nasid)
  189. {
  190. struct ia64_sal_retval ret_stuff;
  191. ret_stuff.status = 0;
  192. ret_stuff.v0 = 0;
  193. ret_stuff.v1 = 0;
  194. ret_stuff.v2 = 0;
  195. SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0);
  196. return ret_stuff.v0 ? __va(ret_stuff.v0) : NULL;
  197. }
  198. /*
  199. * Returns the next console character.
  200. */
  201. static inline u64
  202. ia64_sn_console_getc(int *ch)
  203. {
  204. struct ia64_sal_retval ret_stuff;
  205. ret_stuff.status = 0;
  206. ret_stuff.v0 = 0;
  207. ret_stuff.v1 = 0;
  208. ret_stuff.v2 = 0;
  209. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_GETC, 0, 0, 0, 0, 0, 0, 0);
  210. /* character is in 'v0' */
  211. *ch = (int)ret_stuff.v0;
  212. return ret_stuff.status;
  213. }
  214. /*
  215. * Read a character from the SAL console device, after a previous interrupt
  216. * or poll operation has given us to know that a character is available
  217. * to be read.
  218. */
  219. static inline u64
  220. ia64_sn_console_readc(void)
  221. {
  222. struct ia64_sal_retval ret_stuff;
  223. ret_stuff.status = 0;
  224. ret_stuff.v0 = 0;
  225. ret_stuff.v1 = 0;
  226. ret_stuff.v2 = 0;
  227. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_READC, 0, 0, 0, 0, 0, 0, 0);
  228. /* character is in 'v0' */
  229. return ret_stuff.v0;
  230. }
  231. /*
  232. * Sends the given character to the console.
  233. */
  234. static inline u64
  235. ia64_sn_console_putc(char ch)
  236. {
  237. struct ia64_sal_retval ret_stuff;
  238. ret_stuff.status = 0;
  239. ret_stuff.v0 = 0;
  240. ret_stuff.v1 = 0;
  241. ret_stuff.v2 = 0;
  242. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTC, (u64)ch, 0, 0, 0, 0, 0, 0);
  243. return ret_stuff.status;
  244. }
  245. /*
  246. * Sends the given buffer to the console.
  247. */
  248. static inline u64
  249. ia64_sn_console_putb(const char *buf, int len)
  250. {
  251. struct ia64_sal_retval ret_stuff;
  252. ret_stuff.status = 0;
  253. ret_stuff.v0 = 0;
  254. ret_stuff.v1 = 0;
  255. ret_stuff.v2 = 0;
  256. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTB, (u64)buf, (u64)len, 0, 0, 0, 0, 0);
  257. if ( ret_stuff.status == 0 ) {
  258. return ret_stuff.v0;
  259. }
  260. return (u64)0;
  261. }
  262. /*
  263. * Print a platform error record
  264. */
  265. static inline u64
  266. ia64_sn_plat_specific_err_print(int (*hook)(const char*, ...), char *rec)
  267. {
  268. struct ia64_sal_retval ret_stuff;
  269. ret_stuff.status = 0;
  270. ret_stuff.v0 = 0;
  271. ret_stuff.v1 = 0;
  272. ret_stuff.v2 = 0;
  273. SAL_CALL_REENTRANT(ret_stuff, SN_SAL_PRINT_ERROR, (u64)hook, (u64)rec, 0, 0, 0, 0, 0);
  274. return ret_stuff.status;
  275. }
  276. /*
  277. * Check for Platform errors
  278. */
  279. static inline u64
  280. ia64_sn_plat_cpei_handler(void)
  281. {
  282. struct ia64_sal_retval ret_stuff;
  283. ret_stuff.status = 0;
  284. ret_stuff.v0 = 0;
  285. ret_stuff.v1 = 0;
  286. ret_stuff.v2 = 0;
  287. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_LOG_CE, 0, 0, 0, 0, 0, 0, 0);
  288. return ret_stuff.status;
  289. }
  290. /*
  291. * Set Error Handling Features (Obsolete)
  292. */
  293. static inline u64
  294. ia64_sn_plat_set_error_handling_features(void)
  295. {
  296. struct ia64_sal_retval ret_stuff;
  297. ret_stuff.status = 0;
  298. ret_stuff.v0 = 0;
  299. ret_stuff.v1 = 0;
  300. ret_stuff.v2 = 0;
  301. SAL_CALL_REENTRANT(ret_stuff, SN_SAL_SET_ERROR_HANDLING_FEATURES,
  302. SAL_ERR_FEAT_LOG_SBES,
  303. 0, 0, 0, 0, 0, 0);
  304. return ret_stuff.status;
  305. }
  306. /*
  307. * Checks for console input.
  308. */
  309. static inline u64
  310. ia64_sn_console_check(int *result)
  311. {
  312. struct ia64_sal_retval ret_stuff;
  313. ret_stuff.status = 0;
  314. ret_stuff.v0 = 0;
  315. ret_stuff.v1 = 0;
  316. ret_stuff.v2 = 0;
  317. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_POLL, 0, 0, 0, 0, 0, 0, 0);
  318. /* result is in 'v0' */
  319. *result = (int)ret_stuff.v0;
  320. return ret_stuff.status;
  321. }
  322. /*
  323. * Checks console interrupt status
  324. */
  325. static inline u64
  326. ia64_sn_console_intr_status(void)
  327. {
  328. struct ia64_sal_retval ret_stuff;
  329. ret_stuff.status = 0;
  330. ret_stuff.v0 = 0;
  331. ret_stuff.v1 = 0;
  332. ret_stuff.v2 = 0;
  333. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
  334. 0, SAL_CONSOLE_INTR_STATUS,
  335. 0, 0, 0, 0, 0);
  336. if (ret_stuff.status == 0) {
  337. return ret_stuff.v0;
  338. }
  339. return 0;
  340. }
  341. /*
  342. * Enable an interrupt on the SAL console device.
  343. */
  344. static inline void
  345. ia64_sn_console_intr_enable(u64 intr)
  346. {
  347. struct ia64_sal_retval ret_stuff;
  348. ret_stuff.status = 0;
  349. ret_stuff.v0 = 0;
  350. ret_stuff.v1 = 0;
  351. ret_stuff.v2 = 0;
  352. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
  353. intr, SAL_CONSOLE_INTR_ON,
  354. 0, 0, 0, 0, 0);
  355. }
  356. /*
  357. * Disable an interrupt on the SAL console device.
  358. */
  359. static inline void
  360. ia64_sn_console_intr_disable(u64 intr)
  361. {
  362. struct ia64_sal_retval ret_stuff;
  363. ret_stuff.status = 0;
  364. ret_stuff.v0 = 0;
  365. ret_stuff.v1 = 0;
  366. ret_stuff.v2 = 0;
  367. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
  368. intr, SAL_CONSOLE_INTR_OFF,
  369. 0, 0, 0, 0, 0);
  370. }
  371. /*
  372. * Sends a character buffer to the console asynchronously.
  373. */
  374. static inline u64
  375. ia64_sn_console_xmit_chars(char *buf, int len)
  376. {
  377. struct ia64_sal_retval ret_stuff;
  378. ret_stuff.status = 0;
  379. ret_stuff.v0 = 0;
  380. ret_stuff.v1 = 0;
  381. ret_stuff.v2 = 0;
  382. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_XMIT_CHARS,
  383. (u64)buf, (u64)len,
  384. 0, 0, 0, 0, 0);
  385. if (ret_stuff.status == 0) {
  386. return ret_stuff.v0;
  387. }
  388. return 0;
  389. }
  390. /*
  391. * Returns the iobrick module Id
  392. */
  393. static inline u64
  394. ia64_sn_sysctl_iobrick_module_get(nasid_t nasid, int *result)
  395. {
  396. struct ia64_sal_retval ret_stuff;
  397. ret_stuff.status = 0;
  398. ret_stuff.v0 = 0;
  399. ret_stuff.v1 = 0;
  400. ret_stuff.v2 = 0;
  401. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYSCTL_IOBRICK_MODULE_GET, nasid, 0, 0, 0, 0, 0, 0);
  402. /* result is in 'v0' */
  403. *result = (int)ret_stuff.v0;
  404. return ret_stuff.status;
  405. }
  406. /**
  407. * ia64_sn_pod_mode - call the SN_SAL_POD_MODE function
  408. *
  409. * SN_SAL_POD_MODE actually takes an argument, but it's always
  410. * 0 when we call it from the kernel, so we don't have to expose
  411. * it to the caller.
  412. */
  413. static inline u64
  414. ia64_sn_pod_mode(void)
  415. {
  416. struct ia64_sal_retval isrv;
  417. SAL_CALL_REENTRANT(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
  418. if (isrv.status)
  419. return 0;
  420. return isrv.v0;
  421. }
  422. /**
  423. * ia64_sn_probe_mem - read from memory safely
  424. * @addr: address to probe
  425. * @size: number bytes to read (1,2,4,8)
  426. * @data_ptr: address to store value read by probe (-1 returned if probe fails)
  427. *
  428. * Call into the SAL to do a memory read. If the read generates a machine
  429. * check, this routine will recover gracefully and return -1 to the caller.
  430. * @addr is usually a kernel virtual address in uncached space (i.e. the
  431. * address starts with 0xc), but if called in physical mode, @addr should
  432. * be a physical address.
  433. *
  434. * Return values:
  435. * 0 - probe successful
  436. * 1 - probe failed (generated MCA)
  437. * 2 - Bad arg
  438. * <0 - PAL error
  439. */
  440. static inline u64
  441. ia64_sn_probe_mem(long addr, long size, void *data_ptr)
  442. {
  443. struct ia64_sal_retval isrv;
  444. SAL_CALL(isrv, SN_SAL_PROBE, addr, size, 0, 0, 0, 0, 0);
  445. if (data_ptr) {
  446. switch (size) {
  447. case 1:
  448. *((u8*)data_ptr) = (u8)isrv.v0;
  449. break;
  450. case 2:
  451. *((u16*)data_ptr) = (u16)isrv.v0;
  452. break;
  453. case 4:
  454. *((u32*)data_ptr) = (u32)isrv.v0;
  455. break;
  456. case 8:
  457. *((u64*)data_ptr) = (u64)isrv.v0;
  458. break;
  459. default:
  460. isrv.status = 2;
  461. }
  462. }
  463. return isrv.status;
  464. }
  465. /*
  466. * Retrieve the system serial number as an ASCII string.
  467. */
  468. static inline u64
  469. ia64_sn_sys_serial_get(char *buf)
  470. {
  471. struct ia64_sal_retval ret_stuff;
  472. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYS_SERIAL_GET, buf, 0, 0, 0, 0, 0, 0);
  473. return ret_stuff.status;
  474. }
  475. extern char sn_system_serial_number_string[];
  476. extern u64 sn_partition_serial_number;
  477. static inline char *
  478. sn_system_serial_number(void) {
  479. if (sn_system_serial_number_string[0]) {
  480. return(sn_system_serial_number_string);
  481. } else {
  482. ia64_sn_sys_serial_get(sn_system_serial_number_string);
  483. return(sn_system_serial_number_string);
  484. }
  485. }
  486. /*
  487. * Returns a unique id number for this system and partition (suitable for
  488. * use with license managers), based in part on the system serial number.
  489. */
  490. static inline u64
  491. ia64_sn_partition_serial_get(void)
  492. {
  493. struct ia64_sal_retval ret_stuff;
  494. ia64_sal_oemcall_reentrant(&ret_stuff, SN_SAL_PARTITION_SERIAL_GET, 0,
  495. 0, 0, 0, 0, 0, 0);
  496. if (ret_stuff.status != 0)
  497. return 0;
  498. return ret_stuff.v0;
  499. }
  500. static inline u64
  501. sn_partition_serial_number_val(void) {
  502. if (unlikely(sn_partition_serial_number == 0)) {
  503. sn_partition_serial_number = ia64_sn_partition_serial_get();
  504. }
  505. return sn_partition_serial_number;
  506. }
  507. /*
  508. * Returns the partition id of the nasid passed in as an argument,
  509. * or INVALID_PARTID if the partition id cannot be retrieved.
  510. */
  511. static inline partid_t
  512. ia64_sn_sysctl_partition_get(nasid_t nasid)
  513. {
  514. struct ia64_sal_retval ret_stuff;
  515. SAL_CALL(ret_stuff, SN_SAL_SYSCTL_PARTITION_GET, nasid,
  516. 0, 0, 0, 0, 0, 0);
  517. if (ret_stuff.status != 0)
  518. return -1;
  519. return ((partid_t)ret_stuff.v0);
  520. }
  521. /*
  522. * Returns the physical address of the partition's reserved page through
  523. * an iterative number of calls.
  524. *
  525. * On first call, 'cookie' and 'len' should be set to 0, and 'addr'
  526. * set to the nasid of the partition whose reserved page's address is
  527. * being sought.
  528. * On subsequent calls, pass the values, that were passed back on the
  529. * previous call.
  530. *
  531. * While the return status equals SALRET_MORE_PASSES, keep calling
  532. * this function after first copying 'len' bytes starting at 'addr'
  533. * into 'buf'. Once the return status equals SALRET_OK, 'addr' will
  534. * be the physical address of the partition's reserved page. If the
  535. * return status equals neither of these, an error as occurred.
  536. */
  537. static inline s64
  538. sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
  539. {
  540. struct ia64_sal_retval rv;
  541. ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie,
  542. *addr, buf, *len, 0, 0, 0);
  543. *cookie = rv.v0;
  544. *addr = rv.v1;
  545. *len = rv.v2;
  546. return rv.status;
  547. }
  548. /*
  549. * Register or unregister a physical address range being referenced across
  550. * a partition boundary for which certain SAL errors should be scanned for,
  551. * cleaned up and ignored. This is of value for kernel partitioning code only.
  552. * Values for the operation argument:
  553. * 1 = register this address range with SAL
  554. * 0 = unregister this address range with SAL
  555. *
  556. * SAL maintains a reference count on an address range in case it is registered
  557. * multiple times.
  558. *
  559. * On success, returns the reference count of the address range after the SAL
  560. * call has performed the current registration/unregistration. Returns a
  561. * negative value if an error occurred.
  562. */
  563. static inline int
  564. sn_register_xp_addr_region(u64 paddr, u64 len, int operation)
  565. {
  566. struct ia64_sal_retval ret_stuff;
  567. ia64_sal_oemcall(&ret_stuff, SN_SAL_XP_ADDR_REGION, paddr, len,
  568. (u64)operation, 0, 0, 0, 0);
  569. return ret_stuff.status;
  570. }
  571. /*
  572. * Register or unregister an instruction range for which SAL errors should
  573. * be ignored. If an error occurs while in the registered range, SAL jumps
  574. * to return_addr after ignoring the error. Values for the operation argument:
  575. * 1 = register this instruction range with SAL
  576. * 0 = unregister this instruction range with SAL
  577. *
  578. * Returns 0 on success, or a negative value if an error occurred.
  579. */
  580. static inline int
  581. sn_register_nofault_code(u64 start_addr, u64 end_addr, u64 return_addr,
  582. int virtual, int operation)
  583. {
  584. struct ia64_sal_retval ret_stuff;
  585. u64 call;
  586. if (virtual) {
  587. call = SN_SAL_NO_FAULT_ZONE_VIRTUAL;
  588. } else {
  589. call = SN_SAL_NO_FAULT_ZONE_PHYSICAL;
  590. }
  591. ia64_sal_oemcall(&ret_stuff, call, start_addr, end_addr, return_addr,
  592. (u64)1, 0, 0, 0);
  593. return ret_stuff.status;
  594. }
  595. /*
  596. * Change or query the coherence domain for this partition. Each cpu-based
  597. * nasid is represented by a bit in an array of 64-bit words:
  598. * 0 = not in this partition's coherency domain
  599. * 1 = in this partition's coherency domain
  600. *
  601. * It is not possible for the local system's nasids to be removed from
  602. * the coherency domain. Purpose of the domain arguments:
  603. * new_domain = set the coherence domain to the given nasids
  604. * old_domain = return the current coherence domain
  605. *
  606. * Returns 0 on success, or a negative value if an error occurred.
  607. */
  608. static inline int
  609. sn_change_coherence(u64 *new_domain, u64 *old_domain)
  610. {
  611. struct ia64_sal_retval ret_stuff;
  612. ia64_sal_oemcall(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain,
  613. (u64)old_domain, 0, 0, 0, 0, 0);
  614. return ret_stuff.status;
  615. }
  616. /*
  617. * Change memory access protections for a physical address range.
  618. * nasid_array is not used on Altix, but may be in future architectures.
  619. * Available memory protection access classes are defined after the function.
  620. */
  621. static inline int
  622. sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
  623. {
  624. struct ia64_sal_retval ret_stuff;
  625. ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len,
  626. (u64)nasid_array, perms, 0, 0, 0);
  627. return ret_stuff.status;
  628. }
  629. #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080
  630. #define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2
  631. #define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca
  632. #define SN_MEMPROT_ACCESS_CLASS_3 0x14a290
  633. #define SN_MEMPROT_ACCESS_CLASS_6 0x084080
  634. #define SN_MEMPROT_ACCESS_CLASS_7 0x021080
  635. /*
  636. * Turns off system power.
  637. */
  638. static inline void
  639. ia64_sn_power_down(void)
  640. {
  641. struct ia64_sal_retval ret_stuff;
  642. SAL_CALL(ret_stuff, SN_SAL_SYSTEM_POWER_DOWN, 0, 0, 0, 0, 0, 0, 0);
  643. while(1)
  644. cpu_relax();
  645. /* never returns */
  646. }
  647. /**
  648. * ia64_sn_fru_capture - tell the system controller to capture hw state
  649. *
  650. * This routine will call the SAL which will tell the system controller(s)
  651. * to capture hw mmr information from each SHub in the system.
  652. */
  653. static inline u64
  654. ia64_sn_fru_capture(void)
  655. {
  656. struct ia64_sal_retval isrv;
  657. SAL_CALL(isrv, SN_SAL_SYSCTL_FRU_CAPTURE, 0, 0, 0, 0, 0, 0, 0);
  658. if (isrv.status)
  659. return 0;
  660. return isrv.v0;
  661. }
  662. /*
  663. * Performs an operation on a PCI bus or slot -- power up, power down
  664. * or reset.
  665. */
  666. static inline u64
  667. ia64_sn_sysctl_iobrick_pci_op(nasid_t n, u64 connection_type,
  668. u64 bus, char slot,
  669. u64 action)
  670. {
  671. struct ia64_sal_retval rv = {0, 0, 0, 0};
  672. SAL_CALL_NOLOCK(rv, SN_SAL_SYSCTL_IOBRICK_PCI_OP, connection_type, n, action,
  673. bus, (u64) slot, 0, 0);
  674. if (rv.status)
  675. return rv.v0;
  676. return 0;
  677. }
  678. /*
  679. * Open a subchannel for sending arbitrary data to the system
  680. * controller network via the system controller device associated with
  681. * 'nasid'. Return the subchannel number or a negative error code.
  682. */
  683. static inline int
  684. ia64_sn_irtr_open(nasid_t nasid)
  685. {
  686. struct ia64_sal_retval rv;
  687. SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_OPEN, nasid,
  688. 0, 0, 0, 0, 0);
  689. return (int) rv.v0;
  690. }
  691. /*
  692. * Close system controller subchannel 'subch' previously opened on 'nasid'.
  693. */
  694. static inline int
  695. ia64_sn_irtr_close(nasid_t nasid, int subch)
  696. {
  697. struct ia64_sal_retval rv;
  698. SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_CLOSE,
  699. (u64) nasid, (u64) subch, 0, 0, 0, 0);
  700. return (int) rv.status;
  701. }
  702. /*
  703. * Read data from system controller associated with 'nasid' on
  704. * subchannel 'subch'. The buffer to be filled is pointed to by
  705. * 'buf', and its capacity is in the integer pointed to by 'len'. The
  706. * referent of 'len' is set to the number of bytes read by the SAL
  707. * call. The return value is either SALRET_OK (for bytes read) or
  708. * SALRET_ERROR (for error or "no data available").
  709. */
  710. static inline int
  711. ia64_sn_irtr_recv(nasid_t nasid, int subch, char *buf, int *len)
  712. {
  713. struct ia64_sal_retval rv;
  714. SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_RECV,
  715. (u64) nasid, (u64) subch, (u64) buf, (u64) len,
  716. 0, 0);
  717. return (int) rv.status;
  718. }
  719. /*
  720. * Write data to the system controller network via the system
  721. * controller associated with 'nasid' on suchannel 'subch'. The
  722. * buffer to be written out is pointed to by 'buf', and 'len' is the
  723. * number of bytes to be written. The return value is either the
  724. * number of bytes written (which could be zero) or a negative error
  725. * code.
  726. */
  727. static inline int
  728. ia64_sn_irtr_send(nasid_t nasid, int subch, char *buf, int len)
  729. {
  730. struct ia64_sal_retval rv;
  731. SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_SEND,
  732. (u64) nasid, (u64) subch, (u64) buf, (u64) len,
  733. 0, 0);
  734. return (int) rv.v0;
  735. }
  736. /*
  737. * Check whether any interrupts are pending for the system controller
  738. * associated with 'nasid' and its subchannel 'subch'. The return
  739. * value is a mask of pending interrupts (SAL_IROUTER_INTR_XMIT and/or
  740. * SAL_IROUTER_INTR_RECV).
  741. */
  742. static inline int
  743. ia64_sn_irtr_intr(nasid_t nasid, int subch)
  744. {
  745. struct ia64_sal_retval rv;
  746. SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_STATUS,
  747. (u64) nasid, (u64) subch, 0, 0, 0, 0);
  748. return (int) rv.v0;
  749. }
  750. /*
  751. * Enable the interrupt indicated by the intr parameter (either
  752. * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
  753. */
  754. static inline int
  755. ia64_sn_irtr_intr_enable(nasid_t nasid, int subch, u64 intr)
  756. {
  757. struct ia64_sal_retval rv;
  758. SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_ON,
  759. (u64) nasid, (u64) subch, intr, 0, 0, 0);
  760. return (int) rv.v0;
  761. }
  762. /*
  763. * Disable the interrupt indicated by the intr parameter (either
  764. * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
  765. */
  766. static inline int
  767. ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr)
  768. {
  769. struct ia64_sal_retval rv;
  770. SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_OFF,
  771. (u64) nasid, (u64) subch, intr, 0, 0, 0);
  772. return (int) rv.v0;
  773. }
  774. /*
  775. * Set up a node as the point of contact for system controller
  776. * environmental event delivery.
  777. */
  778. static inline int
  779. ia64_sn_sysctl_event_init(nasid_t nasid)
  780. {
  781. struct ia64_sal_retval rv;
  782. SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid,
  783. 0, 0, 0, 0, 0, 0);
  784. return (int) rv.v0;
  785. }
  786. /*
  787. * Ask the system controller on the specified nasid to reset
  788. * the CX corelet clock. Only valid on TIO nodes.
  789. */
  790. static inline int
  791. ia64_sn_sysctl_tio_clock_reset(nasid_t nasid)
  792. {
  793. struct ia64_sal_retval rv;
  794. SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_TIO_JLCK_RST,
  795. nasid, 0, 0, 0, 0, 0);
  796. if (rv.status != 0)
  797. return (int)rv.status;
  798. if (rv.v0 != 0)
  799. return (int)rv.v0;
  800. return 0;
  801. }
  802. /*
  803. * Get the associated ioboard type for a given nasid.
  804. */
  805. static inline s64
  806. ia64_sn_sysctl_ioboard_get(nasid_t nasid, u16 *ioboard)
  807. {
  808. struct ia64_sal_retval isrv;
  809. SAL_CALL_REENTRANT(isrv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_IOBOARD,
  810. nasid, 0, 0, 0, 0, 0);
  811. if (isrv.v0 != 0) {
  812. *ioboard = isrv.v0;
  813. return isrv.status;
  814. }
  815. if (isrv.v1 != 0) {
  816. *ioboard = isrv.v1;
  817. return isrv.status;
  818. }
  819. return isrv.status;
  820. }
  821. /**
  822. * ia64_sn_get_fit_compt - read a FIT entry from the PROM header
  823. * @nasid: NASID of node to read
  824. * @index: FIT entry index to be retrieved (0..n)
  825. * @fitentry: 16 byte buffer where FIT entry will be stored.
  826. * @banbuf: optional buffer for retrieving banner
  827. * @banlen: length of banner buffer
  828. *
  829. * Access to the physical PROM chips needs to be serialized since reads and
  830. * writes can't occur at the same time, so we need to call into the SAL when
  831. * we want to look at the FIT entries on the chips.
  832. *
  833. * Returns:
  834. * %SALRET_OK if ok
  835. * %SALRET_INVALID_ARG if index too big
  836. * %SALRET_NOT_IMPLEMENTED if running on older PROM
  837. * ??? if nasid invalid OR banner buffer not large enough
  838. */
  839. static inline int
  840. ia64_sn_get_fit_compt(u64 nasid, u64 index, void *fitentry, void *banbuf,
  841. u64 banlen)
  842. {
  843. struct ia64_sal_retval rv;
  844. SAL_CALL_NOLOCK(rv, SN_SAL_GET_FIT_COMPT, nasid, index, fitentry,
  845. banbuf, banlen, 0, 0);
  846. return (int) rv.status;
  847. }
  848. /*
  849. * Initialize the SAL components of the system controller
  850. * communication driver; specifically pass in a sizable buffer that
  851. * can be used for allocation of subchannel queues as new subchannels
  852. * are opened. "buf" points to the buffer, and "len" specifies its
  853. * length.
  854. */
  855. static inline int
  856. ia64_sn_irtr_init(nasid_t nasid, void *buf, int len)
  857. {
  858. struct ia64_sal_retval rv;
  859. SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INIT,
  860. (u64) nasid, (u64) buf, (u64) len, 0, 0, 0);
  861. return (int) rv.status;
  862. }
  863. /*
  864. * Returns the nasid, subnode & slice corresponding to a SAPIC ID
  865. *
  866. * In:
  867. * arg0 - SN_SAL_GET_SAPIC_INFO
  868. * arg1 - sapicid (lid >> 16)
  869. * Out:
  870. * v0 - nasid
  871. * v1 - subnode
  872. * v2 - slice
  873. */
  874. static inline u64
  875. ia64_sn_get_sapic_info(int sapicid, int *nasid, int *subnode, int *slice)
  876. {
  877. struct ia64_sal_retval ret_stuff;
  878. ret_stuff.status = 0;
  879. ret_stuff.v0 = 0;
  880. ret_stuff.v1 = 0;
  881. ret_stuff.v2 = 0;
  882. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SAPIC_INFO, sapicid, 0, 0, 0, 0, 0, 0);
  883. /***** BEGIN HACK - temp til old proms no longer supported ********/
  884. if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
  885. if (nasid) *nasid = sapicid & 0xfff;
  886. if (subnode) *subnode = (sapicid >> 13) & 1;
  887. if (slice) *slice = (sapicid >> 12) & 3;
  888. return 0;
  889. }
  890. /***** END HACK *******/
  891. if (ret_stuff.status < 0)
  892. return ret_stuff.status;
  893. if (nasid) *nasid = (int) ret_stuff.v0;
  894. if (subnode) *subnode = (int) ret_stuff.v1;
  895. if (slice) *slice = (int) ret_stuff.v2;
  896. return 0;
  897. }
  898. /*
  899. * Returns information about the HUB/SHUB.
  900. * In:
  901. * arg0 - SN_SAL_GET_SN_INFO
  902. * arg1 - 0 (other values reserved for future use)
  903. * Out:
  904. * v0
  905. * [7:0] - shub type (0=shub1, 1=shub2)
  906. * [15:8] - Log2 max number of nodes in entire system (includes
  907. * C-bricks, I-bricks, etc)
  908. * [23:16] - Log2 of nodes per sharing domain
  909. * [31:24] - partition ID
  910. * [39:32] - coherency_id
  911. * [47:40] - regionsize
  912. * v1
  913. * [15:0] - nasid mask (ex., 0x7ff for 11 bit nasid)
  914. * [23:15] - bit position of low nasid bit
  915. */
  916. static inline u64
  917. ia64_sn_get_sn_info(int fc, u8 *shubtype, u16 *nasid_bitmask, u8 *nasid_shift,
  918. u8 *systemsize, u8 *sharing_domain_size, u8 *partid, u8 *coher, u8 *reg)
  919. {
  920. struct ia64_sal_retval ret_stuff;
  921. ret_stuff.status = 0;
  922. ret_stuff.v0 = 0;
  923. ret_stuff.v1 = 0;
  924. ret_stuff.v2 = 0;
  925. SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0);
  926. /***** BEGIN HACK - temp til old proms no longer supported ********/
  927. if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
  928. int nasid = get_sapicid() & 0xfff;
  929. #define SH_SHUB_ID_NODES_PER_BIT_MASK 0x001f000000000000UL
  930. #define SH_SHUB_ID_NODES_PER_BIT_SHFT 48
  931. if (shubtype) *shubtype = 0;
  932. if (nasid_bitmask) *nasid_bitmask = 0x7ff;
  933. if (nasid_shift) *nasid_shift = 38;
  934. if (systemsize) *systemsize = 10;
  935. if (sharing_domain_size) *sharing_domain_size = 8;
  936. if (partid) *partid = ia64_sn_sysctl_partition_get(nasid);
  937. if (coher) *coher = nasid >> 9;
  938. if (reg) *reg = (HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_SHUB_ID)) & SH_SHUB_ID_NODES_PER_BIT_MASK) >>
  939. SH_SHUB_ID_NODES_PER_BIT_SHFT;
  940. return 0;
  941. }
  942. /***** END HACK *******/
  943. if (ret_stuff.status < 0)
  944. return ret_stuff.status;
  945. if (shubtype) *shubtype = ret_stuff.v0 & 0xff;
  946. if (systemsize) *systemsize = (ret_stuff.v0 >> 8) & 0xff;
  947. if (sharing_domain_size) *sharing_domain_size = (ret_stuff.v0 >> 16) & 0xff;
  948. if (partid) *partid = (ret_stuff.v0 >> 24) & 0xff;
  949. if (coher) *coher = (ret_stuff.v0 >> 32) & 0xff;
  950. if (reg) *reg = (ret_stuff.v0 >> 40) & 0xff;
  951. if (nasid_bitmask) *nasid_bitmask = (ret_stuff.v1 & 0xffff);
  952. if (nasid_shift) *nasid_shift = (ret_stuff.v1 >> 16) & 0xff;
  953. return 0;
  954. }
  955. /*
  956. * This is the access point to the Altix PROM hardware performance
  957. * and status monitoring interface. For info on using this, see
  958. * include/asm-ia64/sn/sn2/sn_hwperf.h
  959. */
  960. static inline int
  961. ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2,
  962. u64 a3, u64 a4, int *v0)
  963. {
  964. struct ia64_sal_retval rv;
  965. SAL_CALL_NOLOCK(rv, SN_SAL_HWPERF_OP, (u64)nasid,
  966. opcode, a0, a1, a2, a3, a4);
  967. if (v0)
  968. *v0 = (int) rv.v0;
  969. return (int) rv.status;
  970. }
  971. static inline int
  972. ia64_sn_ioif_get_pci_topology(u64 buf, u64 len)
  973. {
  974. struct ia64_sal_retval rv;
  975. SAL_CALL_NOLOCK(rv, SN_SAL_IOIF_GET_PCI_TOPOLOGY, buf, len, 0, 0, 0, 0, 0);
  976. return (int) rv.status;
  977. }
  978. /*
  979. * BTE error recovery is implemented in SAL
  980. */
  981. static inline int
  982. ia64_sn_bte_recovery(nasid_t nasid)
  983. {
  984. struct ia64_sal_retval rv;
  985. rv.status = 0;
  986. SAL_CALL_NOLOCK(rv, SN_SAL_BTE_RECOVER, (u64)nasid, 0, 0, 0, 0, 0, 0);
  987. if (rv.status == SALRET_NOT_IMPLEMENTED)
  988. return 0;
  989. return (int) rv.status;
  990. }
  991. static inline int
  992. ia64_sn_is_fake_prom(void)
  993. {
  994. struct ia64_sal_retval rv;
  995. SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0);
  996. return (rv.status == 0);
  997. }
  998. static inline int
  999. ia64_sn_get_prom_feature_set(int set, unsigned long *feature_set)
  1000. {
  1001. struct ia64_sal_retval rv;
  1002. SAL_CALL_NOLOCK(rv, SN_SAL_GET_PROM_FEATURE_SET, set, 0, 0, 0, 0, 0, 0);
  1003. if (rv.status != 0)
  1004. return rv.status;
  1005. *feature_set = rv.v0;
  1006. return 0;
  1007. }
  1008. static inline int
  1009. ia64_sn_set_os_feature(int feature)
  1010. {
  1011. struct ia64_sal_retval rv;
  1012. SAL_CALL_NOLOCK(rv, SN_SAL_SET_OS_FEATURE_SET, feature, 0, 0, 0, 0, 0, 0);
  1013. return rv.status;
  1014. }
  1015. static inline int
  1016. sn_inject_error(u64 paddr, u64 *data, u64 *ecc)
  1017. {
  1018. struct ia64_sal_retval ret_stuff;
  1019. ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_INJECT_ERROR, paddr, (u64)data,
  1020. (u64)ecc, 0, 0, 0, 0);
  1021. return ret_stuff.status;
  1022. }
  1023. static inline int
  1024. ia64_sn_set_cpu_number(int cpu)
  1025. {
  1026. struct ia64_sal_retval rv;
  1027. SAL_CALL_NOLOCK(rv, SN_SAL_SET_CPU_NUMBER, cpu, 0, 0, 0, 0, 0, 0);
  1028. return rv.status;
  1029. }
  1030. static inline int
  1031. ia64_sn_kernel_launch_event(void)
  1032. {
  1033. struct ia64_sal_retval rv;
  1034. SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0);
  1035. return rv.status;
  1036. }
  1037. #endif /* _ASM_IA64_SN_SN_SAL_H */