1 #ifndef _ASM_IA64_SN_SN_SAL_H
2 #define _ASM_IA64_SN_SN_SAL_H
5 * System Abstraction Layer definitions for IA64
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file "COPYING" in the main directory of this archive
11 * Copyright (c) 2000-2006 Silicon Graphics, Inc. All rights reserved.
16 #include <asm/sn/sn_cpuid.h>
17 #include <asm/sn/arch.h>
18 #include <asm/sn/geo.h>
19 #include <asm/sn/nodepda.h>
20 #include <asm/sn/shub_mmr.h>
23 #define SN_SAL_POD_MODE 0x02000001
24 #define SN_SAL_SYSTEM_RESET 0x02000002
25 #define SN_SAL_PROBE 0x02000003
26 #define SN_SAL_GET_MASTER_NASID 0x02000004
27 #define SN_SAL_GET_KLCONFIG_ADDR 0x02000005
28 #define SN_SAL_LOG_CE 0x02000006
29 #define SN_SAL_REGISTER_CE 0x02000007
30 #define SN_SAL_GET_PARTITION_ADDR 0x02000009
31 #define SN_SAL_XP_ADDR_REGION 0x0200000f
32 #define SN_SAL_NO_FAULT_ZONE_VIRTUAL 0x02000010
33 #define SN_SAL_NO_FAULT_ZONE_PHYSICAL 0x02000011
34 #define SN_SAL_PRINT_ERROR 0x02000012
35 #define SN_SAL_SET_ERROR_HANDLING_FEATURES 0x0200001a // reentrant
36 #define SN_SAL_GET_FIT_COMPT 0x0200001b // reentrant
37 #define SN_SAL_GET_SAPIC_INFO 0x0200001d
38 #define SN_SAL_GET_SN_INFO 0x0200001e
39 #define SN_SAL_CONSOLE_PUTC 0x02000021
40 #define SN_SAL_CONSOLE_GETC 0x02000022
41 #define SN_SAL_CONSOLE_PUTS 0x02000023
42 #define SN_SAL_CONSOLE_GETS 0x02000024
43 #define SN_SAL_CONSOLE_GETS_TIMEOUT 0x02000025
44 #define SN_SAL_CONSOLE_POLL 0x02000026
45 #define SN_SAL_CONSOLE_INTR 0x02000027
46 #define SN_SAL_CONSOLE_PUTB 0x02000028
47 #define SN_SAL_CONSOLE_XMIT_CHARS 0x0200002a
48 #define SN_SAL_CONSOLE_READC 0x0200002b
49 #define SN_SAL_SYSCTL_OP 0x02000030
50 #define SN_SAL_SYSCTL_MODID_GET 0x02000031
51 #define SN_SAL_SYSCTL_GET 0x02000032
52 #define SN_SAL_SYSCTL_IOBRICK_MODULE_GET 0x02000033
53 #define SN_SAL_SYSCTL_IO_PORTSPEED_GET 0x02000035
54 #define SN_SAL_SYSCTL_SLAB_GET 0x02000036
55 #define SN_SAL_BUS_CONFIG 0x02000037
56 #define SN_SAL_SYS_SERIAL_GET 0x02000038
57 #define SN_SAL_PARTITION_SERIAL_GET 0x02000039
58 #define SN_SAL_SYSCTL_PARTITION_GET 0x0200003a
59 #define SN_SAL_SYSTEM_POWER_DOWN 0x0200003b
60 #define SN_SAL_GET_MASTER_BASEIO_NASID 0x0200003c
61 #define SN_SAL_COHERENCE 0x0200003d
62 #define SN_SAL_MEMPROTECT 0x0200003e
63 #define SN_SAL_SYSCTL_FRU_CAPTURE 0x0200003f
65 #define SN_SAL_SYSCTL_IOBRICK_PCI_OP 0x02000042 // reentrant
66 #define SN_SAL_IROUTER_OP 0x02000043
67 #define SN_SAL_SYSCTL_EVENT 0x02000044
68 #define SN_SAL_IOIF_INTERRUPT 0x0200004a
69 #define SN_SAL_HWPERF_OP 0x02000050 // lock
70 #define SN_SAL_IOIF_ERROR_INTERRUPT 0x02000051
71 #define SN_SAL_IOIF_PCI_SAFE 0x02000052
72 #define SN_SAL_IOIF_SLOT_ENABLE 0x02000053
73 #define SN_SAL_IOIF_SLOT_DISABLE 0x02000054
74 #define SN_SAL_IOIF_GET_HUBDEV_INFO 0x02000055
75 #define SN_SAL_IOIF_GET_PCIBUS_INFO 0x02000056
76 #define SN_SAL_IOIF_GET_PCIDEV_INFO 0x02000057
77 #define SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST 0x02000058 // deprecated
78 #define SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST 0x0200005a
80 #define SN_SAL_HUB_ERROR_INTERRUPT 0x02000060
81 #define SN_SAL_BTE_RECOVER 0x02000061
82 #define SN_SAL_RESERVED_DO_NOT_USE 0x02000062
83 #define SN_SAL_IOIF_GET_PCI_TOPOLOGY 0x02000064
85 #define SN_SAL_GET_PROM_FEATURE_SET 0x02000065
86 #define SN_SAL_SET_OS_FEATURE_SET 0x02000066
87 #define SN_SAL_INJECT_ERROR 0x02000067
90 * Service-specific constants
93 /* Console interrupt manipulation */
95 #define SAL_CONSOLE_INTR_OFF 0 /* turn the interrupt off */
96 #define SAL_CONSOLE_INTR_ON 1 /* turn the interrupt on */
97 #define SAL_CONSOLE_INTR_STATUS 2 /* retrieve the interrupt status */
98 /* interrupt specification & status return codes */
99 #define SAL_CONSOLE_INTR_XMIT 1 /* output interrupt */
100 #define SAL_CONSOLE_INTR_RECV 2 /* input interrupt */
102 /* interrupt handling */
103 #define SAL_INTR_ALLOC 1
104 #define SAL_INTR_FREE 2
107 * operations available on the generic SN_SAL_SYSCTL_OP
110 #define SAL_SYSCTL_OP_IOBOARD 0x0001 /* retrieve board type */
111 #define SAL_SYSCTL_OP_TIO_JLCK_RST 0x0002 /* issue TIO clock reset */
114 * IRouter (i.e. generalized system controller) operations
116 #define SAL_IROUTER_OPEN 0 /* open a subchannel */
117 #define SAL_IROUTER_CLOSE 1 /* close a subchannel */
118 #define SAL_IROUTER_SEND 2 /* send part of an IRouter packet */
119 #define SAL_IROUTER_RECV 3 /* receive part of an IRouter packet */
120 #define SAL_IROUTER_INTR_STATUS 4 /* check the interrupt status for
123 #define SAL_IROUTER_INTR_ON 5 /* enable an interrupt */
124 #define SAL_IROUTER_INTR_OFF 6 /* disable an interrupt */
125 #define SAL_IROUTER_INIT 7 /* initialize IRouter driver */
127 /* IRouter interrupt mask bits */
128 #define SAL_IROUTER_INTR_XMIT SAL_CONSOLE_INTR_XMIT
129 #define SAL_IROUTER_INTR_RECV SAL_CONSOLE_INTR_RECV
132 * Error Handling Features
134 #define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV 0x1 // obsolete
135 #define SAL_ERR_FEAT_LOG_SBES 0x2 // obsolete
136 #define SAL_ERR_FEAT_MFR_OVERRIDE 0x4
137 #define SAL_ERR_FEAT_SBE_THRESHOLD 0xffff0000
142 #define SALRET_MORE_PASSES 1
144 #define SALRET_NOT_IMPLEMENTED (-1)
145 #define SALRET_INVALID_ARG (-2)
146 #define SALRET_ERROR (-3)
148 #define SN_SAL_FAKE_PROM 0x02009999
151 * sn_sal_revision - get the SGI SAL revision number
153 * The SGI PROM stores its version in the sal_[ab]_rev_(major|minor).
154 * This routine simply extracts the major and minor values and
155 * presents them in a u32 format.
157 * For example, version 4.05 would be represented at 0x0405.
162 struct ia64_sal_systab *systab = __va(efi.sal_systab);
164 return (u32)(systab->sal_b_rev_major << 8 | systab->sal_b_rev_minor);
168 * Returns the master console nasid, if the call fails, return an illegal
172 ia64_sn_get_console_nasid(void)
174 struct ia64_sal_retval ret_stuff;
176 ret_stuff.status = 0;
180 SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_NASID, 0, 0, 0, 0, 0, 0, 0);
182 if (ret_stuff.status < 0)
183 return ret_stuff.status;
185 /* Master console nasid is in 'v0' */
190 * Returns the master baseio nasid, if the call fails, return an illegal
194 ia64_sn_get_master_baseio_nasid(void)
196 struct ia64_sal_retval ret_stuff;
198 ret_stuff.status = 0;
202 SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_BASEIO_NASID, 0, 0, 0, 0, 0, 0, 0);
204 if (ret_stuff.status < 0)
205 return ret_stuff.status;
207 /* Master baseio nasid is in 'v0' */
212 ia64_sn_get_klconfig_addr(nasid_t nasid)
214 struct ia64_sal_retval ret_stuff;
216 ret_stuff.status = 0;
220 SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0);
221 return ret_stuff.v0 ? __va(ret_stuff.v0) : NULL;
225 * Returns the next console character.
228 ia64_sn_console_getc(int *ch)
230 struct ia64_sal_retval ret_stuff;
232 ret_stuff.status = 0;
236 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_GETC, 0, 0, 0, 0, 0, 0, 0);
238 /* character is in 'v0' */
239 *ch = (int)ret_stuff.v0;
241 return ret_stuff.status;
245 * Read a character from the SAL console device, after a previous interrupt
246 * or poll operation has given us to know that a character is available
250 ia64_sn_console_readc(void)
252 struct ia64_sal_retval ret_stuff;
254 ret_stuff.status = 0;
258 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_READC, 0, 0, 0, 0, 0, 0, 0);
260 /* character is in 'v0' */
265 * Sends the given character to the console.
268 ia64_sn_console_putc(char ch)
270 struct ia64_sal_retval ret_stuff;
272 ret_stuff.status = 0;
276 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTC, (u64)ch, 0, 0, 0, 0, 0, 0);
278 return ret_stuff.status;
282 * Sends the given buffer to the console.
285 ia64_sn_console_putb(const char *buf, int len)
287 struct ia64_sal_retval ret_stuff;
289 ret_stuff.status = 0;
293 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTB, (u64)buf, (u64)len, 0, 0, 0, 0, 0);
295 if ( ret_stuff.status == 0 ) {
302 * Print a platform error record
305 ia64_sn_plat_specific_err_print(int (*hook)(const char*, ...), char *rec)
307 struct ia64_sal_retval ret_stuff;
309 ret_stuff.status = 0;
313 SAL_CALL_REENTRANT(ret_stuff, SN_SAL_PRINT_ERROR, (u64)hook, (u64)rec, 0, 0, 0, 0, 0);
315 return ret_stuff.status;
319 * Check for Platform errors
322 ia64_sn_plat_cpei_handler(void)
324 struct ia64_sal_retval ret_stuff;
326 ret_stuff.status = 0;
330 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_LOG_CE, 0, 0, 0, 0, 0, 0, 0);
332 return ret_stuff.status;
336 * Set Error Handling Features (Obsolete)
339 ia64_sn_plat_set_error_handling_features(void)
341 struct ia64_sal_retval ret_stuff;
343 ret_stuff.status = 0;
347 SAL_CALL_REENTRANT(ret_stuff, SN_SAL_SET_ERROR_HANDLING_FEATURES,
348 (SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV | SAL_ERR_FEAT_LOG_SBES),
351 return ret_stuff.status;
355 * Checks for console input.
358 ia64_sn_console_check(int *result)
360 struct ia64_sal_retval ret_stuff;
362 ret_stuff.status = 0;
366 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_POLL, 0, 0, 0, 0, 0, 0, 0);
368 /* result is in 'v0' */
369 *result = (int)ret_stuff.v0;
371 return ret_stuff.status;
375 * Checks console interrupt status
378 ia64_sn_console_intr_status(void)
380 struct ia64_sal_retval ret_stuff;
382 ret_stuff.status = 0;
386 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
387 0, SAL_CONSOLE_INTR_STATUS,
390 if (ret_stuff.status == 0) {
398 * Enable an interrupt on the SAL console device.
401 ia64_sn_console_intr_enable(u64 intr)
403 struct ia64_sal_retval ret_stuff;
405 ret_stuff.status = 0;
409 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
410 intr, SAL_CONSOLE_INTR_ON,
415 * Disable an interrupt on the SAL console device.
418 ia64_sn_console_intr_disable(u64 intr)
420 struct ia64_sal_retval ret_stuff;
422 ret_stuff.status = 0;
426 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
427 intr, SAL_CONSOLE_INTR_OFF,
432 * Sends a character buffer to the console asynchronously.
435 ia64_sn_console_xmit_chars(char *buf, int len)
437 struct ia64_sal_retval ret_stuff;
439 ret_stuff.status = 0;
443 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_XMIT_CHARS,
447 if (ret_stuff.status == 0) {
455 * Returns the iobrick module Id
458 ia64_sn_sysctl_iobrick_module_get(nasid_t nasid, int *result)
460 struct ia64_sal_retval ret_stuff;
462 ret_stuff.status = 0;
466 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYSCTL_IOBRICK_MODULE_GET, nasid, 0, 0, 0, 0, 0, 0);
468 /* result is in 'v0' */
469 *result = (int)ret_stuff.v0;
471 return ret_stuff.status;
475 * ia64_sn_pod_mode - call the SN_SAL_POD_MODE function
477 * SN_SAL_POD_MODE actually takes an argument, but it's always
478 * 0 when we call it from the kernel, so we don't have to expose
482 ia64_sn_pod_mode(void)
484 struct ia64_sal_retval isrv;
485 SAL_CALL_REENTRANT(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
492 * ia64_sn_probe_mem - read from memory safely
493 * @addr: address to probe
494 * @size: number bytes to read (1,2,4,8)
495 * @data_ptr: address to store value read by probe (-1 returned if probe fails)
497 * Call into the SAL to do a memory read. If the read generates a machine
498 * check, this routine will recover gracefully and return -1 to the caller.
499 * @addr is usually a kernel virtual address in uncached space (i.e. the
500 * address starts with 0xc), but if called in physical mode, @addr should
501 * be a physical address.
504 * 0 - probe successful
505 * 1 - probe failed (generated MCA)
510 ia64_sn_probe_mem(long addr, long size, void *data_ptr)
512 struct ia64_sal_retval isrv;
514 SAL_CALL(isrv, SN_SAL_PROBE, addr, size, 0, 0, 0, 0, 0);
519 *((u8*)data_ptr) = (u8)isrv.v0;
522 *((u16*)data_ptr) = (u16)isrv.v0;
525 *((u32*)data_ptr) = (u32)isrv.v0;
528 *((u64*)data_ptr) = (u64)isrv.v0;
538 * Retrieve the system serial number as an ASCII string.
541 ia64_sn_sys_serial_get(char *buf)
543 struct ia64_sal_retval ret_stuff;
544 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYS_SERIAL_GET, buf, 0, 0, 0, 0, 0, 0);
545 return ret_stuff.status;
548 extern char sn_system_serial_number_string[];
549 extern u64 sn_partition_serial_number;
552 sn_system_serial_number(void) {
553 if (sn_system_serial_number_string[0]) {
554 return(sn_system_serial_number_string);
556 ia64_sn_sys_serial_get(sn_system_serial_number_string);
557 return(sn_system_serial_number_string);
563 * Returns a unique id number for this system and partition (suitable for
564 * use with license managers), based in part on the system serial number.
567 ia64_sn_partition_serial_get(void)
569 struct ia64_sal_retval ret_stuff;
570 ia64_sal_oemcall_reentrant(&ret_stuff, SN_SAL_PARTITION_SERIAL_GET, 0,
572 if (ret_stuff.status != 0)
578 sn_partition_serial_number_val(void) {
579 if (unlikely(sn_partition_serial_number == 0)) {
580 sn_partition_serial_number = ia64_sn_partition_serial_get();
582 return sn_partition_serial_number;
586 * Returns the partition id of the nasid passed in as an argument,
587 * or INVALID_PARTID if the partition id cannot be retrieved.
589 static inline partid_t
590 ia64_sn_sysctl_partition_get(nasid_t nasid)
592 struct ia64_sal_retval ret_stuff;
593 SAL_CALL(ret_stuff, SN_SAL_SYSCTL_PARTITION_GET, nasid,
595 if (ret_stuff.status != 0)
597 return ((partid_t)ret_stuff.v0);
601 * Returns the physical address of the partition's reserved page through
602 * an iterative number of calls.
604 * On first call, 'cookie' and 'len' should be set to 0, and 'addr'
605 * set to the nasid of the partition whose reserved page's address is
607 * On subsequent calls, pass the values, that were passed back on the
610 * While the return status equals SALRET_MORE_PASSES, keep calling
611 * this function after first copying 'len' bytes starting at 'addr'
612 * into 'buf'. Once the return status equals SALRET_OK, 'addr' will
613 * be the physical address of the partition's reserved page. If the
614 * return status equals neither of these, an error as occurred.
617 sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
619 struct ia64_sal_retval rv;
620 ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie,
621 *addr, buf, *len, 0, 0, 0);
629 * Register or unregister a physical address range being referenced across
630 * a partition boundary for which certain SAL errors should be scanned for,
631 * cleaned up and ignored. This is of value for kernel partitioning code only.
632 * Values for the operation argument:
633 * 1 = register this address range with SAL
634 * 0 = unregister this address range with SAL
636 * SAL maintains a reference count on an address range in case it is registered
639 * On success, returns the reference count of the address range after the SAL
640 * call has performed the current registration/unregistration. Returns a
641 * negative value if an error occurred.
644 sn_register_xp_addr_region(u64 paddr, u64 len, int operation)
646 struct ia64_sal_retval ret_stuff;
647 ia64_sal_oemcall(&ret_stuff, SN_SAL_XP_ADDR_REGION, paddr, len,
648 (u64)operation, 0, 0, 0, 0);
649 return ret_stuff.status;
653 * Register or unregister an instruction range for which SAL errors should
654 * be ignored. If an error occurs while in the registered range, SAL jumps
655 * to return_addr after ignoring the error. Values for the operation argument:
656 * 1 = register this instruction range with SAL
657 * 0 = unregister this instruction range with SAL
659 * Returns 0 on success, or a negative value if an error occurred.
662 sn_register_nofault_code(u64 start_addr, u64 end_addr, u64 return_addr,
663 int virtual, int operation)
665 struct ia64_sal_retval ret_stuff;
668 call = SN_SAL_NO_FAULT_ZONE_VIRTUAL;
670 call = SN_SAL_NO_FAULT_ZONE_PHYSICAL;
672 ia64_sal_oemcall(&ret_stuff, call, start_addr, end_addr, return_addr,
674 return ret_stuff.status;
678 * Change or query the coherence domain for this partition. Each cpu-based
679 * nasid is represented by a bit in an array of 64-bit words:
680 * 0 = not in this partition's coherency domain
681 * 1 = in this partition's coherency domain
683 * It is not possible for the local system's nasids to be removed from
684 * the coherency domain. Purpose of the domain arguments:
685 * new_domain = set the coherence domain to the given nasids
686 * old_domain = return the current coherence domain
688 * Returns 0 on success, or a negative value if an error occurred.
691 sn_change_coherence(u64 *new_domain, u64 *old_domain)
693 struct ia64_sal_retval ret_stuff;
694 ia64_sal_oemcall(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain,
695 (u64)old_domain, 0, 0, 0, 0, 0);
696 return ret_stuff.status;
700 * Change memory access protections for a physical address range.
701 * nasid_array is not used on Altix, but may be in future architectures.
702 * Available memory protection access classes are defined after the function.
705 sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
707 struct ia64_sal_retval ret_stuff;
708 unsigned long irq_flags;
710 local_irq_save(irq_flags);
711 ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len,
712 (u64)nasid_array, perms, 0, 0, 0);
713 local_irq_restore(irq_flags);
714 return ret_stuff.status;
716 #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080
717 #define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2
718 #define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca
719 #define SN_MEMPROT_ACCESS_CLASS_3 0x14a290
720 #define SN_MEMPROT_ACCESS_CLASS_6 0x084080
721 #define SN_MEMPROT_ACCESS_CLASS_7 0x021080
724 * Turns off system power.
727 ia64_sn_power_down(void)
729 struct ia64_sal_retval ret_stuff;
730 SAL_CALL(ret_stuff, SN_SAL_SYSTEM_POWER_DOWN, 0, 0, 0, 0, 0, 0, 0);
737 * ia64_sn_fru_capture - tell the system controller to capture hw state
739 * This routine will call the SAL which will tell the system controller(s)
740 * to capture hw mmr information from each SHub in the system.
743 ia64_sn_fru_capture(void)
745 struct ia64_sal_retval isrv;
746 SAL_CALL(isrv, SN_SAL_SYSCTL_FRU_CAPTURE, 0, 0, 0, 0, 0, 0, 0);
753 * Performs an operation on a PCI bus or slot -- power up, power down
757 ia64_sn_sysctl_iobrick_pci_op(nasid_t n, u64 connection_type,
761 struct ia64_sal_retval rv = {0, 0, 0, 0};
763 SAL_CALL_NOLOCK(rv, SN_SAL_SYSCTL_IOBRICK_PCI_OP, connection_type, n, action,
764 bus, (u64) slot, 0, 0);
772 * Open a subchannel for sending arbitrary data to the system
773 * controller network via the system controller device associated with
774 * 'nasid'. Return the subchannel number or a negative error code.
777 ia64_sn_irtr_open(nasid_t nasid)
779 struct ia64_sal_retval rv;
780 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_OPEN, nasid,
786 * Close system controller subchannel 'subch' previously opened on 'nasid'.
789 ia64_sn_irtr_close(nasid_t nasid, int subch)
791 struct ia64_sal_retval rv;
792 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_CLOSE,
793 (u64) nasid, (u64) subch, 0, 0, 0, 0);
794 return (int) rv.status;
798 * Read data from system controller associated with 'nasid' on
799 * subchannel 'subch'. The buffer to be filled is pointed to by
800 * 'buf', and its capacity is in the integer pointed to by 'len'. The
801 * referent of 'len' is set to the number of bytes read by the SAL
802 * call. The return value is either SALRET_OK (for bytes read) or
803 * SALRET_ERROR (for error or "no data available").
806 ia64_sn_irtr_recv(nasid_t nasid, int subch, char *buf, int *len)
808 struct ia64_sal_retval rv;
809 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_RECV,
810 (u64) nasid, (u64) subch, (u64) buf, (u64) len,
812 return (int) rv.status;
816 * Write data to the system controller network via the system
817 * controller associated with 'nasid' on suchannel 'subch'. The
818 * buffer to be written out is pointed to by 'buf', and 'len' is the
819 * number of bytes to be written. The return value is either the
820 * number of bytes written (which could be zero) or a negative error
824 ia64_sn_irtr_send(nasid_t nasid, int subch, char *buf, int len)
826 struct ia64_sal_retval rv;
827 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_SEND,
828 (u64) nasid, (u64) subch, (u64) buf, (u64) len,
834 * Check whether any interrupts are pending for the system controller
835 * associated with 'nasid' and its subchannel 'subch'. The return
836 * value is a mask of pending interrupts (SAL_IROUTER_INTR_XMIT and/or
837 * SAL_IROUTER_INTR_RECV).
840 ia64_sn_irtr_intr(nasid_t nasid, int subch)
842 struct ia64_sal_retval rv;
843 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_STATUS,
844 (u64) nasid, (u64) subch, 0, 0, 0, 0);
849 * Enable the interrupt indicated by the intr parameter (either
850 * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
853 ia64_sn_irtr_intr_enable(nasid_t nasid, int subch, u64 intr)
855 struct ia64_sal_retval rv;
856 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_ON,
857 (u64) nasid, (u64) subch, intr, 0, 0, 0);
862 * Disable the interrupt indicated by the intr parameter (either
863 * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
866 ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr)
868 struct ia64_sal_retval rv;
869 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_OFF,
870 (u64) nasid, (u64) subch, intr, 0, 0, 0);
875 * Set up a node as the point of contact for system controller
876 * environmental event delivery.
879 ia64_sn_sysctl_event_init(nasid_t nasid)
881 struct ia64_sal_retval rv;
882 SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid,
888 * Ask the system controller on the specified nasid to reset
889 * the CX corelet clock. Only valid on TIO nodes.
892 ia64_sn_sysctl_tio_clock_reset(nasid_t nasid)
894 struct ia64_sal_retval rv;
895 SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_TIO_JLCK_RST,
896 nasid, 0, 0, 0, 0, 0);
898 return (int)rv.status;
906 * Get the associated ioboard type for a given nasid.
909 ia64_sn_sysctl_ioboard_get(nasid_t nasid, u16 *ioboard)
911 struct ia64_sal_retval isrv;
912 SAL_CALL_REENTRANT(isrv, SN_SAL_SYSCTL_OP, SAL_SYSCTL_OP_IOBOARD,
913 nasid, 0, 0, 0, 0, 0);
927 * ia64_sn_get_fit_compt - read a FIT entry from the PROM header
928 * @nasid: NASID of node to read
929 * @index: FIT entry index to be retrieved (0..n)
930 * @fitentry: 16 byte buffer where FIT entry will be stored.
931 * @banbuf: optional buffer for retrieving banner
932 * @banlen: length of banner buffer
934 * Access to the physical PROM chips needs to be serialized since reads and
935 * writes can't occur at the same time, so we need to call into the SAL when
936 * we want to look at the FIT entries on the chips.
940 * %SALRET_INVALID_ARG if index too big
941 * %SALRET_NOT_IMPLEMENTED if running on older PROM
942 * ??? if nasid invalid OR banner buffer not large enough
945 ia64_sn_get_fit_compt(u64 nasid, u64 index, void *fitentry, void *banbuf,
948 struct ia64_sal_retval rv;
949 SAL_CALL_NOLOCK(rv, SN_SAL_GET_FIT_COMPT, nasid, index, fitentry,
950 banbuf, banlen, 0, 0);
951 return (int) rv.status;
955 * Initialize the SAL components of the system controller
956 * communication driver; specifically pass in a sizable buffer that
957 * can be used for allocation of subchannel queues as new subchannels
958 * are opened. "buf" points to the buffer, and "len" specifies its
962 ia64_sn_irtr_init(nasid_t nasid, void *buf, int len)
964 struct ia64_sal_retval rv;
965 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INIT,
966 (u64) nasid, (u64) buf, (u64) len, 0, 0, 0);
967 return (int) rv.status;
971 * Returns the nasid, subnode & slice corresponding to a SAPIC ID
974 * arg0 - SN_SAL_GET_SAPIC_INFO
975 * arg1 - sapicid (lid >> 16)
982 ia64_sn_get_sapic_info(int sapicid, int *nasid, int *subnode, int *slice)
984 struct ia64_sal_retval ret_stuff;
986 ret_stuff.status = 0;
990 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SAPIC_INFO, sapicid, 0, 0, 0, 0, 0, 0);
992 /***** BEGIN HACK - temp til old proms no longer supported ********/
993 if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
994 if (nasid) *nasid = sapicid & 0xfff;
995 if (subnode) *subnode = (sapicid >> 13) & 1;
996 if (slice) *slice = (sapicid >> 12) & 3;
999 /***** END HACK *******/
1001 if (ret_stuff.status < 0)
1002 return ret_stuff.status;
1004 if (nasid) *nasid = (int) ret_stuff.v0;
1005 if (subnode) *subnode = (int) ret_stuff.v1;
1006 if (slice) *slice = (int) ret_stuff.v2;
1011 * Returns information about the HUB/SHUB.
1013 * arg0 - SN_SAL_GET_SN_INFO
1014 * arg1 - 0 (other values reserved for future use)
1017 * [7:0] - shub type (0=shub1, 1=shub2)
1018 * [15:8] - Log2 max number of nodes in entire system (includes
1019 * C-bricks, I-bricks, etc)
1020 * [23:16] - Log2 of nodes per sharing domain
1021 * [31:24] - partition ID
1022 * [39:32] - coherency_id
1023 * [47:40] - regionsize
1025 * [15:0] - nasid mask (ex., 0x7ff for 11 bit nasid)
1026 * [23:15] - bit position of low nasid bit
1029 ia64_sn_get_sn_info(int fc, u8 *shubtype, u16 *nasid_bitmask, u8 *nasid_shift,
1030 u8 *systemsize, u8 *sharing_domain_size, u8 *partid, u8 *coher, u8 *reg)
1032 struct ia64_sal_retval ret_stuff;
1034 ret_stuff.status = 0;
1038 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0);
1040 /***** BEGIN HACK - temp til old proms no longer supported ********/
1041 if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
1042 int nasid = get_sapicid() & 0xfff;
1043 #define SH_SHUB_ID_NODES_PER_BIT_MASK 0x001f000000000000UL
1044 #define SH_SHUB_ID_NODES_PER_BIT_SHFT 48
1045 if (shubtype) *shubtype = 0;
1046 if (nasid_bitmask) *nasid_bitmask = 0x7ff;
1047 if (nasid_shift) *nasid_shift = 38;
1048 if (systemsize) *systemsize = 10;
1049 if (sharing_domain_size) *sharing_domain_size = 8;
1050 if (partid) *partid = ia64_sn_sysctl_partition_get(nasid);
1051 if (coher) *coher = nasid >> 9;
1052 if (reg) *reg = (HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_SHUB_ID)) & SH_SHUB_ID_NODES_PER_BIT_MASK) >>
1053 SH_SHUB_ID_NODES_PER_BIT_SHFT;
1056 /***** END HACK *******/
1058 if (ret_stuff.status < 0)
1059 return ret_stuff.status;
1061 if (shubtype) *shubtype = ret_stuff.v0 & 0xff;
1062 if (systemsize) *systemsize = (ret_stuff.v0 >> 8) & 0xff;
1063 if (sharing_domain_size) *sharing_domain_size = (ret_stuff.v0 >> 16) & 0xff;
1064 if (partid) *partid = (ret_stuff.v0 >> 24) & 0xff;
1065 if (coher) *coher = (ret_stuff.v0 >> 32) & 0xff;
1066 if (reg) *reg = (ret_stuff.v0 >> 40) & 0xff;
1067 if (nasid_bitmask) *nasid_bitmask = (ret_stuff.v1 & 0xffff);
1068 if (nasid_shift) *nasid_shift = (ret_stuff.v1 >> 16) & 0xff;
1073 * This is the access point to the Altix PROM hardware performance
1074 * and status monitoring interface. For info on using this, see
1075 * include/asm-ia64/sn/sn2/sn_hwperf.h
1078 ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2,
1079 u64 a3, u64 a4, int *v0)
1081 struct ia64_sal_retval rv;
1082 SAL_CALL_NOLOCK(rv, SN_SAL_HWPERF_OP, (u64)nasid,
1083 opcode, a0, a1, a2, a3, a4);
1086 return (int) rv.status;
1090 ia64_sn_ioif_get_pci_topology(u64 buf, u64 len)
1092 struct ia64_sal_retval rv;
1093 SAL_CALL_NOLOCK(rv, SN_SAL_IOIF_GET_PCI_TOPOLOGY, buf, len, 0, 0, 0, 0, 0);
1094 return (int) rv.status;
1098 * BTE error recovery is implemented in SAL
1101 ia64_sn_bte_recovery(nasid_t nasid)
1103 struct ia64_sal_retval rv;
1106 SAL_CALL_NOLOCK(rv, SN_SAL_BTE_RECOVER, (u64)nasid, 0, 0, 0, 0, 0, 0);
1107 if (rv.status == SALRET_NOT_IMPLEMENTED)
1109 return (int) rv.status;
1113 ia64_sn_is_fake_prom(void)
1115 struct ia64_sal_retval rv;
1116 SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0);
1117 return (rv.status == 0);
1121 ia64_sn_get_prom_feature_set(int set, unsigned long *feature_set)
1123 struct ia64_sal_retval rv;
1125 SAL_CALL_NOLOCK(rv, SN_SAL_GET_PROM_FEATURE_SET, set, 0, 0, 0, 0, 0, 0);
1128 *feature_set = rv.v0;
1133 ia64_sn_set_os_feature(int feature)
1135 struct ia64_sal_retval rv;
1137 SAL_CALL_NOLOCK(rv, SN_SAL_SET_OS_FEATURE_SET, feature, 0, 0, 0, 0, 0, 0);
1142 sn_inject_error(u64 paddr, u64 *data, u64 *ecc)
1144 struct ia64_sal_retval ret_stuff;
1145 unsigned long irq_flags;
1147 local_irq_save(irq_flags);
1148 ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_INJECT_ERROR, paddr, (u64)data,
1149 (u64)ecc, 0, 0, 0, 0);
1150 local_irq_restore(irq_flags);
1151 return ret_stuff.status;
1153 #endif /* _ASM_IA64_SN_SN_SAL_H */