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_IOIF_GET_PCI_TOPOLOGY 0x02000062
83 #define SN_SAL_GET_PROM_FEATURE_SET 0x02000065
84 #define SN_SAL_SET_OS_FEATURE_SET 0x02000066
87 * Service-specific constants
90 /* Console interrupt manipulation */
92 #define SAL_CONSOLE_INTR_OFF 0 /* turn the interrupt off */
93 #define SAL_CONSOLE_INTR_ON 1 /* turn the interrupt on */
94 #define SAL_CONSOLE_INTR_STATUS 2 /* retrieve the interrupt status */
95 /* interrupt specification & status return codes */
96 #define SAL_CONSOLE_INTR_XMIT 1 /* output interrupt */
97 #define SAL_CONSOLE_INTR_RECV 2 /* input interrupt */
99 /* interrupt handling */
100 #define SAL_INTR_ALLOC 1
101 #define SAL_INTR_FREE 2
104 * IRouter (i.e. generalized system controller) operations
106 #define SAL_IROUTER_OPEN 0 /* open a subchannel */
107 #define SAL_IROUTER_CLOSE 1 /* close a subchannel */
108 #define SAL_IROUTER_SEND 2 /* send part of an IRouter packet */
109 #define SAL_IROUTER_RECV 3 /* receive part of an IRouter packet */
110 #define SAL_IROUTER_INTR_STATUS 4 /* check the interrupt status for
113 #define SAL_IROUTER_INTR_ON 5 /* enable an interrupt */
114 #define SAL_IROUTER_INTR_OFF 6 /* disable an interrupt */
115 #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
122 * Error Handling Features
124 #define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV 0x1 // obsolete
125 #define SAL_ERR_FEAT_LOG_SBES 0x2 // obsolete
126 #define SAL_ERR_FEAT_MFR_OVERRIDE 0x4
127 #define SAL_ERR_FEAT_SBE_THRESHOLD 0xffff0000
132 #define SALRET_MORE_PASSES 1
134 #define SALRET_NOT_IMPLEMENTED (-1)
135 #define SALRET_INVALID_ARG (-2)
136 #define SALRET_ERROR (-3)
138 #define SN_SAL_FAKE_PROM 0x02009999
141 * sn_sal_revision - get the SGI SAL revision number
143 * The SGI PROM stores its version in the sal_[ab]_rev_(major|minor).
144 * This routine simply extracts the major and minor values and
145 * presents them in a u32 format.
147 * For example, version 4.05 would be represented at 0x0405.
152 struct ia64_sal_systab *systab = efi.sal_systab;
154 return (u32)(systab->sal_b_rev_major << 8 | systab->sal_b_rev_minor);
158 * Returns the master console nasid, if the call fails, return an illegal
162 ia64_sn_get_console_nasid(void)
164 struct ia64_sal_retval ret_stuff;
166 ret_stuff.status = 0;
170 SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_NASID, 0, 0, 0, 0, 0, 0, 0);
172 if (ret_stuff.status < 0)
173 return ret_stuff.status;
175 /* Master console nasid is in 'v0' */
180 * Returns the master baseio nasid, if the call fails, return an illegal
184 ia64_sn_get_master_baseio_nasid(void)
186 struct ia64_sal_retval ret_stuff;
188 ret_stuff.status = 0;
192 SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_BASEIO_NASID, 0, 0, 0, 0, 0, 0, 0);
194 if (ret_stuff.status < 0)
195 return ret_stuff.status;
197 /* Master baseio nasid is in 'v0' */
202 ia64_sn_get_klconfig_addr(nasid_t nasid)
204 struct ia64_sal_retval ret_stuff;
207 cnodeid = nasid_to_cnodeid(nasid);
208 ret_stuff.status = 0;
212 SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0);
215 * We should panic if a valid cnode nasid does not produce
216 * a klconfig address.
218 if (ret_stuff.status != 0) {
219 panic("ia64_sn_get_klconfig_addr: Returned error %lx\n", ret_stuff.status);
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, (uint64_t)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, (uint64_t)buf, (uint64_t)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, (uint64_t)hook, (uint64_t)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(uint64_t 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(uint64_t 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,
444 (uint64_t)buf, (uint64_t)len,
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 ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_SYSCTL_PARTITION_GET, nasid,
595 if (ret_stuff.status != 0)
596 return INVALID_PARTID;
597 return ((partid_t)ret_stuff.v0);
601 * Returns the partition id of the current processor.
604 extern partid_t sn_partid;
606 static inline partid_t
607 sn_local_partid(void) {
608 if (unlikely(sn_partid < 0)) {
609 sn_partid = ia64_sn_sysctl_partition_get(cpuid_to_nasid(smp_processor_id()));
615 * Returns the physical address of the partition's reserved page through
616 * an iterative number of calls.
618 * On first call, 'cookie' and 'len' should be set to 0, and 'addr'
619 * set to the nasid of the partition whose reserved page's address is
621 * On subsequent calls, pass the values, that were passed back on the
624 * While the return status equals SALRET_MORE_PASSES, keep calling
625 * this function after first copying 'len' bytes starting at 'addr'
626 * into 'buf'. Once the return status equals SALRET_OK, 'addr' will
627 * be the physical address of the partition's reserved page. If the
628 * return status equals neither of these, an error as occurred.
631 sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
633 struct ia64_sal_retval rv;
634 ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie,
635 *addr, buf, *len, 0, 0, 0);
643 * Register or unregister a physical address range being referenced across
644 * a partition boundary for which certain SAL errors should be scanned for,
645 * cleaned up and ignored. This is of value for kernel partitioning code only.
646 * Values for the operation argument:
647 * 1 = register this address range with SAL
648 * 0 = unregister this address range with SAL
650 * SAL maintains a reference count on an address range in case it is registered
653 * On success, returns the reference count of the address range after the SAL
654 * call has performed the current registration/unregistration. Returns a
655 * negative value if an error occurred.
658 sn_register_xp_addr_region(u64 paddr, u64 len, int operation)
660 struct ia64_sal_retval ret_stuff;
661 ia64_sal_oemcall(&ret_stuff, SN_SAL_XP_ADDR_REGION, paddr, len,
662 (u64)operation, 0, 0, 0, 0);
663 return ret_stuff.status;
667 * Register or unregister an instruction range for which SAL errors should
668 * be ignored. If an error occurs while in the registered range, SAL jumps
669 * to return_addr after ignoring the error. Values for the operation argument:
670 * 1 = register this instruction range with SAL
671 * 0 = unregister this instruction range with SAL
673 * Returns 0 on success, or a negative value if an error occurred.
676 sn_register_nofault_code(u64 start_addr, u64 end_addr, u64 return_addr,
677 int virtual, int operation)
679 struct ia64_sal_retval ret_stuff;
682 call = SN_SAL_NO_FAULT_ZONE_VIRTUAL;
684 call = SN_SAL_NO_FAULT_ZONE_PHYSICAL;
686 ia64_sal_oemcall(&ret_stuff, call, start_addr, end_addr, return_addr,
688 return ret_stuff.status;
692 * Change or query the coherence domain for this partition. Each cpu-based
693 * nasid is represented by a bit in an array of 64-bit words:
694 * 0 = not in this partition's coherency domain
695 * 1 = in this partition's coherency domain
697 * It is not possible for the local system's nasids to be removed from
698 * the coherency domain. Purpose of the domain arguments:
699 * new_domain = set the coherence domain to the given nasids
700 * old_domain = return the current coherence domain
702 * Returns 0 on success, or a negative value if an error occurred.
705 sn_change_coherence(u64 *new_domain, u64 *old_domain)
707 struct ia64_sal_retval ret_stuff;
708 ia64_sal_oemcall(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain,
709 (u64)old_domain, 0, 0, 0, 0, 0);
710 return ret_stuff.status;
714 * Change memory access protections for a physical address range.
715 * nasid_array is not used on Altix, but may be in future architectures.
716 * Available memory protection access classes are defined after the function.
719 sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
721 struct ia64_sal_retval ret_stuff;
723 unsigned long irq_flags;
725 cnodeid = nasid_to_cnodeid(get_node_number(paddr));
726 // spin_lock(&NODEPDA(cnodeid)->bist_lock);
727 local_irq_save(irq_flags);
728 ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len,
729 (u64)nasid_array, perms, 0, 0, 0);
730 local_irq_restore(irq_flags);
731 // spin_unlock(&NODEPDA(cnodeid)->bist_lock);
732 return ret_stuff.status;
734 #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080
735 #define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2
736 #define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca
737 #define SN_MEMPROT_ACCESS_CLASS_3 0x14a290
738 #define SN_MEMPROT_ACCESS_CLASS_6 0x084080
739 #define SN_MEMPROT_ACCESS_CLASS_7 0x021080
742 * Turns off system power.
745 ia64_sn_power_down(void)
747 struct ia64_sal_retval ret_stuff;
748 SAL_CALL(ret_stuff, SN_SAL_SYSTEM_POWER_DOWN, 0, 0, 0, 0, 0, 0, 0);
754 * ia64_sn_fru_capture - tell the system controller to capture hw state
756 * This routine will call the SAL which will tell the system controller(s)
757 * to capture hw mmr information from each SHub in the system.
760 ia64_sn_fru_capture(void)
762 struct ia64_sal_retval isrv;
763 SAL_CALL(isrv, SN_SAL_SYSCTL_FRU_CAPTURE, 0, 0, 0, 0, 0, 0, 0);
770 * Performs an operation on a PCI bus or slot -- power up, power down
774 ia64_sn_sysctl_iobrick_pci_op(nasid_t n, u64 connection_type,
778 struct ia64_sal_retval rv = {0, 0, 0, 0};
780 SAL_CALL_NOLOCK(rv, SN_SAL_SYSCTL_IOBRICK_PCI_OP, connection_type, n, action,
781 bus, (u64) slot, 0, 0);
789 * Open a subchannel for sending arbitrary data to the system
790 * controller network via the system controller device associated with
791 * 'nasid'. Return the subchannel number or a negative error code.
794 ia64_sn_irtr_open(nasid_t nasid)
796 struct ia64_sal_retval rv;
797 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_OPEN, nasid,
803 * Close system controller subchannel 'subch' previously opened on 'nasid'.
806 ia64_sn_irtr_close(nasid_t nasid, int subch)
808 struct ia64_sal_retval rv;
809 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_CLOSE,
810 (u64) nasid, (u64) subch, 0, 0, 0, 0);
811 return (int) rv.status;
815 * Read data from system controller associated with 'nasid' on
816 * subchannel 'subch'. The buffer to be filled is pointed to by
817 * 'buf', and its capacity is in the integer pointed to by 'len'. The
818 * referent of 'len' is set to the number of bytes read by the SAL
819 * call. The return value is either SALRET_OK (for bytes read) or
820 * SALRET_ERROR (for error or "no data available").
823 ia64_sn_irtr_recv(nasid_t nasid, int subch, char *buf, int *len)
825 struct ia64_sal_retval rv;
826 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_RECV,
827 (u64) nasid, (u64) subch, (u64) buf, (u64) len,
829 return (int) rv.status;
833 * Write data to the system controller network via the system
834 * controller associated with 'nasid' on suchannel 'subch'. The
835 * buffer to be written out is pointed to by 'buf', and 'len' is the
836 * number of bytes to be written. The return value is either the
837 * number of bytes written (which could be zero) or a negative error
841 ia64_sn_irtr_send(nasid_t nasid, int subch, char *buf, int len)
843 struct ia64_sal_retval rv;
844 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_SEND,
845 (u64) nasid, (u64) subch, (u64) buf, (u64) len,
851 * Check whether any interrupts are pending for the system controller
852 * associated with 'nasid' and its subchannel 'subch'. The return
853 * value is a mask of pending interrupts (SAL_IROUTER_INTR_XMIT and/or
854 * SAL_IROUTER_INTR_RECV).
857 ia64_sn_irtr_intr(nasid_t nasid, int subch)
859 struct ia64_sal_retval rv;
860 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_STATUS,
861 (u64) nasid, (u64) subch, 0, 0, 0, 0);
866 * Enable the interrupt indicated by the intr parameter (either
867 * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
870 ia64_sn_irtr_intr_enable(nasid_t nasid, int subch, u64 intr)
872 struct ia64_sal_retval rv;
873 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_ON,
874 (u64) nasid, (u64) subch, intr, 0, 0, 0);
879 * Disable the interrupt indicated by the intr parameter (either
880 * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
883 ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr)
885 struct ia64_sal_retval rv;
886 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_OFF,
887 (u64) nasid, (u64) subch, intr, 0, 0, 0);
892 * Set up a node as the point of contact for system controller
893 * environmental event delivery.
896 ia64_sn_sysctl_event_init(nasid_t nasid)
898 struct ia64_sal_retval rv;
899 SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid,
905 * ia64_sn_get_fit_compt - read a FIT entry from the PROM header
906 * @nasid: NASID of node to read
907 * @index: FIT entry index to be retrieved (0..n)
908 * @fitentry: 16 byte buffer where FIT entry will be stored.
909 * @banbuf: optional buffer for retrieving banner
910 * @banlen: length of banner buffer
912 * Access to the physical PROM chips needs to be serialized since reads and
913 * writes can't occur at the same time, so we need to call into the SAL when
914 * we want to look at the FIT entries on the chips.
918 * %SALRET_INVALID_ARG if index too big
919 * %SALRET_NOT_IMPLEMENTED if running on older PROM
920 * ??? if nasid invalid OR banner buffer not large enough
923 ia64_sn_get_fit_compt(u64 nasid, u64 index, void *fitentry, void *banbuf,
926 struct ia64_sal_retval rv;
927 SAL_CALL_NOLOCK(rv, SN_SAL_GET_FIT_COMPT, nasid, index, fitentry,
928 banbuf, banlen, 0, 0);
929 return (int) rv.status;
933 * Initialize the SAL components of the system controller
934 * communication driver; specifically pass in a sizable buffer that
935 * can be used for allocation of subchannel queues as new subchannels
936 * are opened. "buf" points to the buffer, and "len" specifies its
940 ia64_sn_irtr_init(nasid_t nasid, void *buf, int len)
942 struct ia64_sal_retval rv;
943 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INIT,
944 (u64) nasid, (u64) buf, (u64) len, 0, 0, 0);
945 return (int) rv.status;
949 * Returns the nasid, subnode & slice corresponding to a SAPIC ID
952 * arg0 - SN_SAL_GET_SAPIC_INFO
953 * arg1 - sapicid (lid >> 16)
960 ia64_sn_get_sapic_info(int sapicid, int *nasid, int *subnode, int *slice)
962 struct ia64_sal_retval ret_stuff;
964 ret_stuff.status = 0;
968 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SAPIC_INFO, sapicid, 0, 0, 0, 0, 0, 0);
970 /***** BEGIN HACK - temp til old proms no longer supported ********/
971 if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
972 if (nasid) *nasid = sapicid & 0xfff;
973 if (subnode) *subnode = (sapicid >> 13) & 1;
974 if (slice) *slice = (sapicid >> 12) & 3;
977 /***** END HACK *******/
979 if (ret_stuff.status < 0)
980 return ret_stuff.status;
982 if (nasid) *nasid = (int) ret_stuff.v0;
983 if (subnode) *subnode = (int) ret_stuff.v1;
984 if (slice) *slice = (int) ret_stuff.v2;
989 * Returns information about the HUB/SHUB.
991 * arg0 - SN_SAL_GET_SN_INFO
992 * arg1 - 0 (other values reserved for future use)
995 * [7:0] - shub type (0=shub1, 1=shub2)
996 * [15:8] - Log2 max number of nodes in entire system (includes
997 * C-bricks, I-bricks, etc)
998 * [23:16] - Log2 of nodes per sharing domain
999 * [31:24] - partition ID
1000 * [39:32] - coherency_id
1001 * [47:40] - regionsize
1003 * [15:0] - nasid mask (ex., 0x7ff for 11 bit nasid)
1004 * [23:15] - bit position of low nasid bit
1007 ia64_sn_get_sn_info(int fc, u8 *shubtype, u16 *nasid_bitmask, u8 *nasid_shift,
1008 u8 *systemsize, u8 *sharing_domain_size, u8 *partid, u8 *coher, u8 *reg)
1010 struct ia64_sal_retval ret_stuff;
1012 ret_stuff.status = 0;
1016 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0);
1018 /***** BEGIN HACK - temp til old proms no longer supported ********/
1019 if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
1020 int nasid = get_sapicid() & 0xfff;;
1021 #define SH_SHUB_ID_NODES_PER_BIT_MASK 0x001f000000000000UL
1022 #define SH_SHUB_ID_NODES_PER_BIT_SHFT 48
1023 if (shubtype) *shubtype = 0;
1024 if (nasid_bitmask) *nasid_bitmask = 0x7ff;
1025 if (nasid_shift) *nasid_shift = 38;
1026 if (systemsize) *systemsize = 11;
1027 if (sharing_domain_size) *sharing_domain_size = 9;
1028 if (partid) *partid = ia64_sn_sysctl_partition_get(nasid);
1029 if (coher) *coher = nasid >> 9;
1030 if (reg) *reg = (HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_SHUB_ID)) & SH_SHUB_ID_NODES_PER_BIT_MASK) >>
1031 SH_SHUB_ID_NODES_PER_BIT_SHFT;
1034 /***** END HACK *******/
1036 if (ret_stuff.status < 0)
1037 return ret_stuff.status;
1039 if (shubtype) *shubtype = ret_stuff.v0 & 0xff;
1040 if (systemsize) *systemsize = (ret_stuff.v0 >> 8) & 0xff;
1041 if (sharing_domain_size) *sharing_domain_size = (ret_stuff.v0 >> 16) & 0xff;
1042 if (partid) *partid = (ret_stuff.v0 >> 24) & 0xff;
1043 if (coher) *coher = (ret_stuff.v0 >> 32) & 0xff;
1044 if (reg) *reg = (ret_stuff.v0 >> 40) & 0xff;
1045 if (nasid_bitmask) *nasid_bitmask = (ret_stuff.v1 & 0xffff);
1046 if (nasid_shift) *nasid_shift = (ret_stuff.v1 >> 16) & 0xff;
1051 * This is the access point to the Altix PROM hardware performance
1052 * and status monitoring interface. For info on using this, see
1053 * include/asm-ia64/sn/sn2/sn_hwperf.h
1056 ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2,
1057 u64 a3, u64 a4, int *v0)
1059 struct ia64_sal_retval rv;
1060 SAL_CALL_NOLOCK(rv, SN_SAL_HWPERF_OP, (u64)nasid,
1061 opcode, a0, a1, a2, a3, a4);
1064 return (int) rv.status;
1068 ia64_sn_ioif_get_pci_topology(u64 rack, u64 bay, u64 slot, u64 slab,
1071 struct ia64_sal_retval rv;
1072 SAL_CALL_NOLOCK(rv, SN_SAL_IOIF_GET_PCI_TOPOLOGY,
1073 rack, bay, slot, slab, buf, len, 0);
1074 return (int) rv.status;
1078 * BTE error recovery is implemented in SAL
1081 ia64_sn_bte_recovery(nasid_t nasid)
1083 struct ia64_sal_retval rv;
1086 SAL_CALL_NOLOCK(rv, SN_SAL_BTE_RECOVER, 0, 0, 0, 0, 0, 0, 0);
1087 if (rv.status == SALRET_NOT_IMPLEMENTED)
1089 return (int) rv.status;
1093 ia64_sn_is_fake_prom(void)
1095 struct ia64_sal_retval rv;
1096 SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0);
1097 return (rv.status == 0);
1101 ia64_sn_get_prom_feature_set(int set, unsigned long *feature_set)
1103 struct ia64_sal_retval rv;
1105 SAL_CALL_NOLOCK(rv, SN_SAL_GET_PROM_FEATURE_SET, set, 0, 0, 0, 0, 0, 0);
1108 *feature_set = rv.v0;
1113 ia64_sn_set_os_feature(int feature)
1115 struct ia64_sal_retval rv;
1117 SAL_CALL_NOLOCK(rv, SN_SAL_SET_OS_FEATURE_SET, feature, 0, 0, 0, 0, 0, 0);
1121 #endif /* _ASM_IA64_SN_SN_SAL_H */