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) 2000-2005 Silicon Graphics, Inc. All rights reserved.
15 #include <linux/config.h>
17 #include <asm/sn/sn_cpuid.h>
18 #include <asm/sn/arch.h>
19 #include <asm/sn/geo.h>
20 #include <asm/sn/nodepda.h>
21 #include <asm/sn/shub_mmr.h>
24 #define SN_SAL_POD_MODE 0x02000001
25 #define SN_SAL_SYSTEM_RESET 0x02000002
26 #define SN_SAL_PROBE 0x02000003
27 #define SN_SAL_GET_MASTER_NASID 0x02000004
28 #define SN_SAL_GET_KLCONFIG_ADDR 0x02000005
29 #define SN_SAL_LOG_CE 0x02000006
30 #define SN_SAL_REGISTER_CE 0x02000007
31 #define SN_SAL_GET_PARTITION_ADDR 0x02000009
32 #define SN_SAL_XP_ADDR_REGION 0x0200000f
33 #define SN_SAL_NO_FAULT_ZONE_VIRTUAL 0x02000010
34 #define SN_SAL_NO_FAULT_ZONE_PHYSICAL 0x02000011
35 #define SN_SAL_PRINT_ERROR 0x02000012
36 #define SN_SAL_SET_ERROR_HANDLING_FEATURES 0x0200001a // reentrant
37 #define SN_SAL_GET_FIT_COMPT 0x0200001b // reentrant
38 #define SN_SAL_GET_SAPIC_INFO 0x0200001d
39 #define SN_SAL_GET_SN_INFO 0x0200001e
40 #define SN_SAL_CONSOLE_PUTC 0x02000021
41 #define SN_SAL_CONSOLE_GETC 0x02000022
42 #define SN_SAL_CONSOLE_PUTS 0x02000023
43 #define SN_SAL_CONSOLE_GETS 0x02000024
44 #define SN_SAL_CONSOLE_GETS_TIMEOUT 0x02000025
45 #define SN_SAL_CONSOLE_POLL 0x02000026
46 #define SN_SAL_CONSOLE_INTR 0x02000027
47 #define SN_SAL_CONSOLE_PUTB 0x02000028
48 #define SN_SAL_CONSOLE_XMIT_CHARS 0x0200002a
49 #define SN_SAL_CONSOLE_READC 0x0200002b
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
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
79 #define SN_SAL_HUB_ERROR_INTERRUPT 0x02000060
80 #define SN_SAL_BTE_RECOVER 0x02000061
81 #define SN_SAL_RESERVED_DO_NOT_USE 0x02000062
82 #define SN_SAL_IOIF_GET_PCI_TOPOLOGY 0x02000064
85 * Service-specific constants
88 /* Console interrupt manipulation */
90 #define SAL_CONSOLE_INTR_OFF 0 /* turn the interrupt off */
91 #define SAL_CONSOLE_INTR_ON 1 /* turn the interrupt on */
92 #define SAL_CONSOLE_INTR_STATUS 2 /* retrieve the interrupt status */
93 /* interrupt specification & status return codes */
94 #define SAL_CONSOLE_INTR_XMIT 1 /* output interrupt */
95 #define SAL_CONSOLE_INTR_RECV 2 /* input interrupt */
97 /* interrupt handling */
98 #define SAL_INTR_ALLOC 1
99 #define SAL_INTR_FREE 2
102 * IRouter (i.e. generalized system controller) operations
104 #define SAL_IROUTER_OPEN 0 /* open a subchannel */
105 #define SAL_IROUTER_CLOSE 1 /* close a subchannel */
106 #define SAL_IROUTER_SEND 2 /* send part of an IRouter packet */
107 #define SAL_IROUTER_RECV 3 /* receive part of an IRouter packet */
108 #define SAL_IROUTER_INTR_STATUS 4 /* check the interrupt status for
111 #define SAL_IROUTER_INTR_ON 5 /* enable an interrupt */
112 #define SAL_IROUTER_INTR_OFF 6 /* disable an interrupt */
113 #define SAL_IROUTER_INIT 7 /* initialize IRouter driver */
115 /* IRouter interrupt mask bits */
116 #define SAL_IROUTER_INTR_XMIT SAL_CONSOLE_INTR_XMIT
117 #define SAL_IROUTER_INTR_RECV SAL_CONSOLE_INTR_RECV
120 * Error Handling Features
122 #define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV 0x1
123 #define SAL_ERR_FEAT_LOG_SBES 0x2
124 #define SAL_ERR_FEAT_MFR_OVERRIDE 0x4
125 #define SAL_ERR_FEAT_SBE_THRESHOLD 0xffff0000
130 #define SALRET_MORE_PASSES 1
132 #define SALRET_NOT_IMPLEMENTED (-1)
133 #define SALRET_INVALID_ARG (-2)
134 #define SALRET_ERROR (-3)
136 #define SN_SAL_FAKE_PROM 0x02009999
139 * sn_sal_revision - get the SGI SAL revision number
141 * The SGI PROM stores its version in the sal_[ab]_rev_(major|minor).
142 * This routine simply extracts the major and minor values and
143 * presents them in a u32 format.
145 * For example, version 4.05 would be represented at 0x0405.
150 struct ia64_sal_systab *systab = efi.sal_systab;
152 return (u32)(systab->sal_b_rev_major << 8 | systab->sal_b_rev_minor);
156 * Specify the minimum PROM revsion required for this kernel.
157 * Note that they're stored in hex format...
159 #define SN_SAL_MIN_VERSION 0x0404
162 * Returns the master console nasid, if the call fails, return an illegal
166 ia64_sn_get_console_nasid(void)
168 struct ia64_sal_retval ret_stuff;
170 ret_stuff.status = 0;
174 SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_NASID, 0, 0, 0, 0, 0, 0, 0);
176 if (ret_stuff.status < 0)
177 return ret_stuff.status;
179 /* Master console nasid is in 'v0' */
184 * Returns the master baseio nasid, if the call fails, return an illegal
188 ia64_sn_get_master_baseio_nasid(void)
190 struct ia64_sal_retval ret_stuff;
192 ret_stuff.status = 0;
196 SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_BASEIO_NASID, 0, 0, 0, 0, 0, 0, 0);
198 if (ret_stuff.status < 0)
199 return ret_stuff.status;
201 /* Master baseio nasid is in 'v0' */
206 ia64_sn_get_klconfig_addr(nasid_t nasid)
208 struct ia64_sal_retval ret_stuff;
211 cnodeid = nasid_to_cnodeid(nasid);
212 ret_stuff.status = 0;
216 SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0);
219 * We should panic if a valid cnode nasid does not produce
220 * a klconfig address.
222 if (ret_stuff.status != 0) {
223 panic("ia64_sn_get_klconfig_addr: Returned error %lx\n", ret_stuff.status);
225 return ret_stuff.v0 ? __va(ret_stuff.v0) : NULL;
229 * Returns the next console character.
232 ia64_sn_console_getc(int *ch)
234 struct ia64_sal_retval ret_stuff;
236 ret_stuff.status = 0;
240 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_GETC, 0, 0, 0, 0, 0, 0, 0);
242 /* character is in 'v0' */
243 *ch = (int)ret_stuff.v0;
245 return ret_stuff.status;
249 * Read a character from the SAL console device, after a previous interrupt
250 * or poll operation has given us to know that a character is available
254 ia64_sn_console_readc(void)
256 struct ia64_sal_retval ret_stuff;
258 ret_stuff.status = 0;
262 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_READC, 0, 0, 0, 0, 0, 0, 0);
264 /* character is in 'v0' */
269 * Sends the given character to the console.
272 ia64_sn_console_putc(char ch)
274 struct ia64_sal_retval ret_stuff;
276 ret_stuff.status = 0;
280 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTC, (uint64_t)ch, 0, 0, 0, 0, 0, 0);
282 return ret_stuff.status;
286 * Sends the given buffer to the console.
289 ia64_sn_console_putb(const char *buf, int len)
291 struct ia64_sal_retval ret_stuff;
293 ret_stuff.status = 0;
297 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTB, (uint64_t)buf, (uint64_t)len, 0, 0, 0, 0, 0);
299 if ( ret_stuff.status == 0 ) {
306 * Print a platform error record
309 ia64_sn_plat_specific_err_print(int (*hook)(const char*, ...), char *rec)
311 struct ia64_sal_retval ret_stuff;
313 ret_stuff.status = 0;
317 SAL_CALL_REENTRANT(ret_stuff, SN_SAL_PRINT_ERROR, (uint64_t)hook, (uint64_t)rec, 0, 0, 0, 0, 0);
319 return ret_stuff.status;
323 * Check for Platform errors
326 ia64_sn_plat_cpei_handler(void)
328 struct ia64_sal_retval ret_stuff;
330 ret_stuff.status = 0;
334 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_LOG_CE, 0, 0, 0, 0, 0, 0, 0);
336 return ret_stuff.status;
340 * Set Error Handling Features
343 ia64_sn_plat_set_error_handling_features(void)
345 struct ia64_sal_retval ret_stuff;
347 ret_stuff.status = 0;
351 SAL_CALL_REENTRANT(ret_stuff, SN_SAL_SET_ERROR_HANDLING_FEATURES,
352 (SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV | SAL_ERR_FEAT_LOG_SBES),
355 return ret_stuff.status;
359 * Checks for console input.
362 ia64_sn_console_check(int *result)
364 struct ia64_sal_retval ret_stuff;
366 ret_stuff.status = 0;
370 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_POLL, 0, 0, 0, 0, 0, 0, 0);
372 /* result is in 'v0' */
373 *result = (int)ret_stuff.v0;
375 return ret_stuff.status;
379 * Checks console interrupt status
382 ia64_sn_console_intr_status(void)
384 struct ia64_sal_retval ret_stuff;
386 ret_stuff.status = 0;
390 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
391 0, SAL_CONSOLE_INTR_STATUS,
394 if (ret_stuff.status == 0) {
402 * Enable an interrupt on the SAL console device.
405 ia64_sn_console_intr_enable(uint64_t intr)
407 struct ia64_sal_retval ret_stuff;
409 ret_stuff.status = 0;
413 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
414 intr, SAL_CONSOLE_INTR_ON,
419 * Disable an interrupt on the SAL console device.
422 ia64_sn_console_intr_disable(uint64_t intr)
424 struct ia64_sal_retval ret_stuff;
426 ret_stuff.status = 0;
430 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
431 intr, SAL_CONSOLE_INTR_OFF,
436 * Sends a character buffer to the console asynchronously.
439 ia64_sn_console_xmit_chars(char *buf, int len)
441 struct ia64_sal_retval ret_stuff;
443 ret_stuff.status = 0;
447 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_XMIT_CHARS,
448 (uint64_t)buf, (uint64_t)len,
451 if (ret_stuff.status == 0) {
459 * Returns the iobrick module Id
462 ia64_sn_sysctl_iobrick_module_get(nasid_t nasid, int *result)
464 struct ia64_sal_retval ret_stuff;
466 ret_stuff.status = 0;
470 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYSCTL_IOBRICK_MODULE_GET, nasid, 0, 0, 0, 0, 0, 0);
472 /* result is in 'v0' */
473 *result = (int)ret_stuff.v0;
475 return ret_stuff.status;
479 * ia64_sn_pod_mode - call the SN_SAL_POD_MODE function
481 * SN_SAL_POD_MODE actually takes an argument, but it's always
482 * 0 when we call it from the kernel, so we don't have to expose
486 ia64_sn_pod_mode(void)
488 struct ia64_sal_retval isrv;
489 SAL_CALL_REENTRANT(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
496 * ia64_sn_probe_mem - read from memory safely
497 * @addr: address to probe
498 * @size: number bytes to read (1,2,4,8)
499 * @data_ptr: address to store value read by probe (-1 returned if probe fails)
501 * Call into the SAL to do a memory read. If the read generates a machine
502 * check, this routine will recover gracefully and return -1 to the caller.
503 * @addr is usually a kernel virtual address in uncached space (i.e. the
504 * address starts with 0xc), but if called in physical mode, @addr should
505 * be a physical address.
508 * 0 - probe successful
509 * 1 - probe failed (generated MCA)
514 ia64_sn_probe_mem(long addr, long size, void *data_ptr)
516 struct ia64_sal_retval isrv;
518 SAL_CALL(isrv, SN_SAL_PROBE, addr, size, 0, 0, 0, 0, 0);
523 *((u8*)data_ptr) = (u8)isrv.v0;
526 *((u16*)data_ptr) = (u16)isrv.v0;
529 *((u32*)data_ptr) = (u32)isrv.v0;
532 *((u64*)data_ptr) = (u64)isrv.v0;
542 * Retrieve the system serial number as an ASCII string.
545 ia64_sn_sys_serial_get(char *buf)
547 struct ia64_sal_retval ret_stuff;
548 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYS_SERIAL_GET, buf, 0, 0, 0, 0, 0, 0);
549 return ret_stuff.status;
552 extern char sn_system_serial_number_string[];
553 extern u64 sn_partition_serial_number;
556 sn_system_serial_number(void) {
557 if (sn_system_serial_number_string[0]) {
558 return(sn_system_serial_number_string);
560 ia64_sn_sys_serial_get(sn_system_serial_number_string);
561 return(sn_system_serial_number_string);
567 * Returns a unique id number for this system and partition (suitable for
568 * use with license managers), based in part on the system serial number.
571 ia64_sn_partition_serial_get(void)
573 struct ia64_sal_retval ret_stuff;
574 ia64_sal_oemcall_reentrant(&ret_stuff, SN_SAL_PARTITION_SERIAL_GET, 0,
576 if (ret_stuff.status != 0)
582 sn_partition_serial_number_val(void) {
583 if (unlikely(sn_partition_serial_number == 0)) {
584 sn_partition_serial_number = ia64_sn_partition_serial_get();
586 return sn_partition_serial_number;
590 * Returns the partition id of the nasid passed in as an argument,
591 * or INVALID_PARTID if the partition id cannot be retrieved.
593 static inline partid_t
594 ia64_sn_sysctl_partition_get(nasid_t nasid)
596 struct ia64_sal_retval ret_stuff;
597 ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_SYSCTL_PARTITION_GET, nasid,
599 if (ret_stuff.status != 0)
600 return INVALID_PARTID;
601 return ((partid_t)ret_stuff.v0);
605 * Returns the partition id of the current processor.
608 extern partid_t sn_partid;
610 static inline partid_t
611 sn_local_partid(void) {
612 if (unlikely(sn_partid < 0)) {
613 sn_partid = ia64_sn_sysctl_partition_get(cpuid_to_nasid(smp_processor_id()));
619 * Returns the physical address of the partition's reserved page through
620 * an iterative number of calls.
622 * On first call, 'cookie' and 'len' should be set to 0, and 'addr'
623 * set to the nasid of the partition whose reserved page's address is
625 * On subsequent calls, pass the values, that were passed back on the
628 * While the return status equals SALRET_MORE_PASSES, keep calling
629 * this function after first copying 'len' bytes starting at 'addr'
630 * into 'buf'. Once the return status equals SALRET_OK, 'addr' will
631 * be the physical address of the partition's reserved page. If the
632 * return status equals neither of these, an error as occurred.
635 sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
637 struct ia64_sal_retval rv;
638 ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie,
639 *addr, buf, *len, 0, 0, 0);
647 * Register or unregister a physical address range being referenced across
648 * a partition boundary for which certain SAL errors should be scanned for,
649 * cleaned up and ignored. This is of value for kernel partitioning code only.
650 * Values for the operation argument:
651 * 1 = register this address range with SAL
652 * 0 = unregister this address range with SAL
654 * SAL maintains a reference count on an address range in case it is registered
657 * On success, returns the reference count of the address range after the SAL
658 * call has performed the current registration/unregistration. Returns a
659 * negative value if an error occurred.
662 sn_register_xp_addr_region(u64 paddr, u64 len, int operation)
664 struct ia64_sal_retval ret_stuff;
665 ia64_sal_oemcall(&ret_stuff, SN_SAL_XP_ADDR_REGION, paddr, len,
666 (u64)operation, 0, 0, 0, 0);
667 return ret_stuff.status;
671 * Register or unregister an instruction range for which SAL errors should
672 * be ignored. If an error occurs while in the registered range, SAL jumps
673 * to return_addr after ignoring the error. Values for the operation argument:
674 * 1 = register this instruction range with SAL
675 * 0 = unregister this instruction range with SAL
677 * Returns 0 on success, or a negative value if an error occurred.
680 sn_register_nofault_code(u64 start_addr, u64 end_addr, u64 return_addr,
681 int virtual, int operation)
683 struct ia64_sal_retval ret_stuff;
686 call = SN_SAL_NO_FAULT_ZONE_VIRTUAL;
688 call = SN_SAL_NO_FAULT_ZONE_PHYSICAL;
690 ia64_sal_oemcall(&ret_stuff, call, start_addr, end_addr, return_addr,
692 return ret_stuff.status;
696 * Change or query the coherence domain for this partition. Each cpu-based
697 * nasid is represented by a bit in an array of 64-bit words:
698 * 0 = not in this partition's coherency domain
699 * 1 = in this partition's coherency domain
701 * It is not possible for the local system's nasids to be removed from
702 * the coherency domain. Purpose of the domain arguments:
703 * new_domain = set the coherence domain to the given nasids
704 * old_domain = return the current coherence domain
706 * Returns 0 on success, or a negative value if an error occurred.
709 sn_change_coherence(u64 *new_domain, u64 *old_domain)
711 struct ia64_sal_retval ret_stuff;
712 ia64_sal_oemcall(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain,
713 (u64)old_domain, 0, 0, 0, 0, 0);
714 return ret_stuff.status;
718 * Change memory access protections for a physical address range.
719 * nasid_array is not used on Altix, but may be in future architectures.
720 * Available memory protection access classes are defined after the function.
723 sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
725 struct ia64_sal_retval ret_stuff;
727 unsigned long irq_flags;
729 cnodeid = nasid_to_cnodeid(get_node_number(paddr));
730 // spin_lock(&NODEPDA(cnodeid)->bist_lock);
731 local_irq_save(irq_flags);
732 ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len,
733 (u64)nasid_array, perms, 0, 0, 0);
734 local_irq_restore(irq_flags);
735 // spin_unlock(&NODEPDA(cnodeid)->bist_lock);
736 return ret_stuff.status;
738 #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080
739 #define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2
740 #define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca
741 #define SN_MEMPROT_ACCESS_CLASS_3 0x14a290
742 #define SN_MEMPROT_ACCESS_CLASS_6 0x084080
743 #define SN_MEMPROT_ACCESS_CLASS_7 0x021080
746 * Turns off system power.
749 ia64_sn_power_down(void)
751 struct ia64_sal_retval ret_stuff;
752 SAL_CALL(ret_stuff, SN_SAL_SYSTEM_POWER_DOWN, 0, 0, 0, 0, 0, 0, 0);
759 * ia64_sn_fru_capture - tell the system controller to capture hw state
761 * This routine will call the SAL which will tell the system controller(s)
762 * to capture hw mmr information from each SHub in the system.
765 ia64_sn_fru_capture(void)
767 struct ia64_sal_retval isrv;
768 SAL_CALL(isrv, SN_SAL_SYSCTL_FRU_CAPTURE, 0, 0, 0, 0, 0, 0, 0);
775 * Performs an operation on a PCI bus or slot -- power up, power down
779 ia64_sn_sysctl_iobrick_pci_op(nasid_t n, u64 connection_type,
783 struct ia64_sal_retval rv = {0, 0, 0, 0};
785 SAL_CALL_NOLOCK(rv, SN_SAL_SYSCTL_IOBRICK_PCI_OP, connection_type, n, action,
786 bus, (u64) slot, 0, 0);
794 * Open a subchannel for sending arbitrary data to the system
795 * controller network via the system controller device associated with
796 * 'nasid'. Return the subchannel number or a negative error code.
799 ia64_sn_irtr_open(nasid_t nasid)
801 struct ia64_sal_retval rv;
802 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_OPEN, nasid,
808 * Close system controller subchannel 'subch' previously opened on 'nasid'.
811 ia64_sn_irtr_close(nasid_t nasid, int subch)
813 struct ia64_sal_retval rv;
814 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_CLOSE,
815 (u64) nasid, (u64) subch, 0, 0, 0, 0);
816 return (int) rv.status;
820 * Read data from system controller associated with 'nasid' on
821 * subchannel 'subch'. The buffer to be filled is pointed to by
822 * 'buf', and its capacity is in the integer pointed to by 'len'. The
823 * referent of 'len' is set to the number of bytes read by the SAL
824 * call. The return value is either SALRET_OK (for bytes read) or
825 * SALRET_ERROR (for error or "no data available").
828 ia64_sn_irtr_recv(nasid_t nasid, int subch, char *buf, int *len)
830 struct ia64_sal_retval rv;
831 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_RECV,
832 (u64) nasid, (u64) subch, (u64) buf, (u64) len,
834 return (int) rv.status;
838 * Write data to the system controller network via the system
839 * controller associated with 'nasid' on suchannel 'subch'. The
840 * buffer to be written out is pointed to by 'buf', and 'len' is the
841 * number of bytes to be written. The return value is either the
842 * number of bytes written (which could be zero) or a negative error
846 ia64_sn_irtr_send(nasid_t nasid, int subch, char *buf, int len)
848 struct ia64_sal_retval rv;
849 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_SEND,
850 (u64) nasid, (u64) subch, (u64) buf, (u64) len,
856 * Check whether any interrupts are pending for the system controller
857 * associated with 'nasid' and its subchannel 'subch'. The return
858 * value is a mask of pending interrupts (SAL_IROUTER_INTR_XMIT and/or
859 * SAL_IROUTER_INTR_RECV).
862 ia64_sn_irtr_intr(nasid_t nasid, int subch)
864 struct ia64_sal_retval rv;
865 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_STATUS,
866 (u64) nasid, (u64) subch, 0, 0, 0, 0);
871 * Enable the interrupt indicated by the intr parameter (either
872 * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
875 ia64_sn_irtr_intr_enable(nasid_t nasid, int subch, u64 intr)
877 struct ia64_sal_retval rv;
878 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_ON,
879 (u64) nasid, (u64) subch, intr, 0, 0, 0);
884 * Disable the interrupt indicated by the intr parameter (either
885 * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
888 ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr)
890 struct ia64_sal_retval rv;
891 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_OFF,
892 (u64) nasid, (u64) subch, intr, 0, 0, 0);
897 * Set up a node as the point of contact for system controller
898 * environmental event delivery.
901 ia64_sn_sysctl_event_init(nasid_t nasid)
903 struct ia64_sal_retval rv;
904 SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid,
910 * ia64_sn_get_fit_compt - read a FIT entry from the PROM header
911 * @nasid: NASID of node to read
912 * @index: FIT entry index to be retrieved (0..n)
913 * @fitentry: 16 byte buffer where FIT entry will be stored.
914 * @banbuf: optional buffer for retrieving banner
915 * @banlen: length of banner buffer
917 * Access to the physical PROM chips needs to be serialized since reads and
918 * writes can't occur at the same time, so we need to call into the SAL when
919 * we want to look at the FIT entries on the chips.
923 * %SALRET_INVALID_ARG if index too big
924 * %SALRET_NOT_IMPLEMENTED if running on older PROM
925 * ??? if nasid invalid OR banner buffer not large enough
928 ia64_sn_get_fit_compt(u64 nasid, u64 index, void *fitentry, void *banbuf,
931 struct ia64_sal_retval rv;
932 SAL_CALL_NOLOCK(rv, SN_SAL_GET_FIT_COMPT, nasid, index, fitentry,
933 banbuf, banlen, 0, 0);
934 return (int) rv.status;
938 * Initialize the SAL components of the system controller
939 * communication driver; specifically pass in a sizable buffer that
940 * can be used for allocation of subchannel queues as new subchannels
941 * are opened. "buf" points to the buffer, and "len" specifies its
945 ia64_sn_irtr_init(nasid_t nasid, void *buf, int len)
947 struct ia64_sal_retval rv;
948 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INIT,
949 (u64) nasid, (u64) buf, (u64) len, 0, 0, 0);
950 return (int) rv.status;
954 * Returns the nasid, subnode & slice corresponding to a SAPIC ID
957 * arg0 - SN_SAL_GET_SAPIC_INFO
958 * arg1 - sapicid (lid >> 16)
965 ia64_sn_get_sapic_info(int sapicid, int *nasid, int *subnode, int *slice)
967 struct ia64_sal_retval ret_stuff;
969 ret_stuff.status = 0;
973 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SAPIC_INFO, sapicid, 0, 0, 0, 0, 0, 0);
975 /***** BEGIN HACK - temp til old proms no longer supported ********/
976 if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
977 if (nasid) *nasid = sapicid & 0xfff;
978 if (subnode) *subnode = (sapicid >> 13) & 1;
979 if (slice) *slice = (sapicid >> 12) & 3;
982 /***** END HACK *******/
984 if (ret_stuff.status < 0)
985 return ret_stuff.status;
987 if (nasid) *nasid = (int) ret_stuff.v0;
988 if (subnode) *subnode = (int) ret_stuff.v1;
989 if (slice) *slice = (int) ret_stuff.v2;
994 * Returns information about the HUB/SHUB.
996 * arg0 - SN_SAL_GET_SN_INFO
997 * arg1 - 0 (other values reserved for future use)
1000 * [7:0] - shub type (0=shub1, 1=shub2)
1001 * [15:8] - Log2 max number of nodes in entire system (includes
1002 * C-bricks, I-bricks, etc)
1003 * [23:16] - Log2 of nodes per sharing domain
1004 * [31:24] - partition ID
1005 * [39:32] - coherency_id
1006 * [47:40] - regionsize
1008 * [15:0] - nasid mask (ex., 0x7ff for 11 bit nasid)
1009 * [23:15] - bit position of low nasid bit
1012 ia64_sn_get_sn_info(int fc, u8 *shubtype, u16 *nasid_bitmask, u8 *nasid_shift,
1013 u8 *systemsize, u8 *sharing_domain_size, u8 *partid, u8 *coher, u8 *reg)
1015 struct ia64_sal_retval ret_stuff;
1017 ret_stuff.status = 0;
1021 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0);
1023 /***** BEGIN HACK - temp til old proms no longer supported ********/
1024 if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
1025 int nasid = get_sapicid() & 0xfff;;
1026 #define SH_SHUB_ID_NODES_PER_BIT_MASK 0x001f000000000000UL
1027 #define SH_SHUB_ID_NODES_PER_BIT_SHFT 48
1028 if (shubtype) *shubtype = 0;
1029 if (nasid_bitmask) *nasid_bitmask = 0x7ff;
1030 if (nasid_shift) *nasid_shift = 38;
1031 if (systemsize) *systemsize = 11;
1032 if (sharing_domain_size) *sharing_domain_size = 9;
1033 if (partid) *partid = ia64_sn_sysctl_partition_get(nasid);
1034 if (coher) *coher = nasid >> 9;
1035 if (reg) *reg = (HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_SHUB_ID)) & SH_SHUB_ID_NODES_PER_BIT_MASK) >>
1036 SH_SHUB_ID_NODES_PER_BIT_SHFT;
1039 /***** END HACK *******/
1041 if (ret_stuff.status < 0)
1042 return ret_stuff.status;
1044 if (shubtype) *shubtype = ret_stuff.v0 & 0xff;
1045 if (systemsize) *systemsize = (ret_stuff.v0 >> 8) & 0xff;
1046 if (sharing_domain_size) *sharing_domain_size = (ret_stuff.v0 >> 16) & 0xff;
1047 if (partid) *partid = (ret_stuff.v0 >> 24) & 0xff;
1048 if (coher) *coher = (ret_stuff.v0 >> 32) & 0xff;
1049 if (reg) *reg = (ret_stuff.v0 >> 40) & 0xff;
1050 if (nasid_bitmask) *nasid_bitmask = (ret_stuff.v1 & 0xffff);
1051 if (nasid_shift) *nasid_shift = (ret_stuff.v1 >> 16) & 0xff;
1056 * This is the access point to the Altix PROM hardware performance
1057 * and status monitoring interface. For info on using this, see
1058 * include/asm-ia64/sn/sn2/sn_hwperf.h
1061 ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2,
1062 u64 a3, u64 a4, int *v0)
1064 struct ia64_sal_retval rv;
1065 SAL_CALL_NOLOCK(rv, SN_SAL_HWPERF_OP, (u64)nasid,
1066 opcode, a0, a1, a2, a3, a4);
1069 return (int) rv.status;
1073 ia64_sn_ioif_get_pci_topology(u64 buf, u64 len)
1075 struct ia64_sal_retval rv;
1076 SAL_CALL_NOLOCK(rv, SN_SAL_IOIF_GET_PCI_TOPOLOGY, buf, len, 0, 0, 0, 0, 0);
1077 return (int) rv.status;
1081 * BTE error recovery is implemented in SAL
1084 ia64_sn_bte_recovery(nasid_t nasid)
1086 struct ia64_sal_retval rv;
1089 SAL_CALL_NOLOCK(rv, SN_SAL_BTE_RECOVER, 0, 0, 0, 0, 0, 0, 0);
1090 if (rv.status == SALRET_NOT_IMPLEMENTED)
1092 return (int) rv.status;
1096 ia64_sn_is_fake_prom(void)
1098 struct ia64_sal_retval rv;
1099 SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0);
1100 return (rv.status == 0);
1103 #endif /* _ASM_IA64_SN_SN_SAL_H */