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_SYSTEM_POWER_DOWN 0x0200003b
59 #define SN_SAL_GET_MASTER_BASEIO_NASID 0x0200003c
60 #define SN_SAL_COHERENCE 0x0200003d
61 #define SN_SAL_MEMPROTECT 0x0200003e
62 #define SN_SAL_SYSCTL_FRU_CAPTURE 0x0200003f
64 #define SN_SAL_SYSCTL_IOBRICK_PCI_OP 0x02000042 // reentrant
65 #define SN_SAL_IROUTER_OP 0x02000043
66 #define SN_SAL_SYSCTL_EVENT 0x02000044
67 #define SN_SAL_IOIF_INTERRUPT 0x0200004a
68 #define SN_SAL_HWPERF_OP 0x02000050 // lock
69 #define SN_SAL_IOIF_ERROR_INTERRUPT 0x02000051
71 #define SN_SAL_IOIF_SLOT_ENABLE 0x02000053
72 #define SN_SAL_IOIF_SLOT_DISABLE 0x02000054
73 #define SN_SAL_IOIF_GET_HUBDEV_INFO 0x02000055
74 #define SN_SAL_IOIF_GET_PCIBUS_INFO 0x02000056
75 #define SN_SAL_IOIF_GET_PCIDEV_INFO 0x02000057
76 #define SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST 0x02000058
78 #define SN_SAL_HUB_ERROR_INTERRUPT 0x02000060
79 #define SN_SAL_BTE_RECOVER 0x02000061
80 #define SN_SAL_RESERVED_DO_NOT_USE 0x02000062
81 #define SN_SAL_IOIF_GET_PCI_TOPOLOGY 0x02000064
84 * Service-specific constants
87 /* Console interrupt manipulation */
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 */
96 /* interrupt handling */
97 #define SAL_INTR_ALLOC 1
98 #define SAL_INTR_FREE 2
101 * IRouter (i.e. generalized system controller) operations
103 #define SAL_IROUTER_OPEN 0 /* open a subchannel */
104 #define SAL_IROUTER_CLOSE 1 /* close a subchannel */
105 #define SAL_IROUTER_SEND 2 /* send part of an IRouter packet */
106 #define SAL_IROUTER_RECV 3 /* receive part of an IRouter packet */
107 #define SAL_IROUTER_INTR_STATUS 4 /* check the interrupt status for
110 #define SAL_IROUTER_INTR_ON 5 /* enable an interrupt */
111 #define SAL_IROUTER_INTR_OFF 6 /* disable an interrupt */
112 #define SAL_IROUTER_INIT 7 /* initialize IRouter driver */
114 /* IRouter interrupt mask bits */
115 #define SAL_IROUTER_INTR_XMIT SAL_CONSOLE_INTR_XMIT
116 #define SAL_IROUTER_INTR_RECV SAL_CONSOLE_INTR_RECV
119 * Error Handling Features
121 #define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV 0x1
122 #define SAL_ERR_FEAT_LOG_SBES 0x2
123 #define SAL_ERR_FEAT_MFR_OVERRIDE 0x4
124 #define SAL_ERR_FEAT_SBE_THRESHOLD 0xffff0000
129 #define SALRET_MORE_PASSES 1
131 #define SALRET_NOT_IMPLEMENTED (-1)
132 #define SALRET_INVALID_ARG (-2)
133 #define SALRET_ERROR (-3)
135 #define SN_SAL_FAKE_PROM 0x02009999
138 * sn_sal_revision - get the SGI SAL revision number
140 * The SGI PROM stores its version in the sal_[ab]_rev_(major|minor).
141 * This routine simply extracts the major and minor values and
142 * presents them in a u32 format.
144 * For example, version 4.05 would be represented at 0x0405.
149 struct ia64_sal_systab *systab = efi.sal_systab;
151 return (u32)(systab->sal_b_rev_major << 8 | systab->sal_b_rev_minor);
155 * Specify the minimum PROM revsion required for this kernel.
156 * Note that they're stored in hex format...
158 #define SN_SAL_MIN_VERSION 0x0404
161 * Returns the master console nasid, if the call fails, return an illegal
165 ia64_sn_get_console_nasid(void)
167 struct ia64_sal_retval ret_stuff;
169 ret_stuff.status = 0;
173 SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_NASID, 0, 0, 0, 0, 0, 0, 0);
175 if (ret_stuff.status < 0)
176 return ret_stuff.status;
178 /* Master console nasid is in 'v0' */
183 * Returns the master baseio nasid, if the call fails, return an illegal
187 ia64_sn_get_master_baseio_nasid(void)
189 struct ia64_sal_retval ret_stuff;
191 ret_stuff.status = 0;
195 SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_BASEIO_NASID, 0, 0, 0, 0, 0, 0, 0);
197 if (ret_stuff.status < 0)
198 return ret_stuff.status;
200 /* Master baseio nasid is in 'v0' */
205 ia64_sn_get_klconfig_addr(nasid_t nasid)
207 struct ia64_sal_retval ret_stuff;
210 cnodeid = nasid_to_cnodeid(nasid);
211 ret_stuff.status = 0;
215 SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0);
218 * We should panic if a valid cnode nasid does not produce
219 * a klconfig address.
221 if (ret_stuff.status != 0) {
222 panic("ia64_sn_get_klconfig_addr: Returned error %lx\n", ret_stuff.status);
224 return ret_stuff.v0 ? __va(ret_stuff.v0) : NULL;
228 * Returns the next console character.
231 ia64_sn_console_getc(int *ch)
233 struct ia64_sal_retval ret_stuff;
235 ret_stuff.status = 0;
239 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_GETC, 0, 0, 0, 0, 0, 0, 0);
241 /* character is in 'v0' */
242 *ch = (int)ret_stuff.v0;
244 return ret_stuff.status;
248 * Read a character from the SAL console device, after a previous interrupt
249 * or poll operation has given us to know that a character is available
253 ia64_sn_console_readc(void)
255 struct ia64_sal_retval ret_stuff;
257 ret_stuff.status = 0;
261 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_READC, 0, 0, 0, 0, 0, 0, 0);
263 /* character is in 'v0' */
268 * Sends the given character to the console.
271 ia64_sn_console_putc(char ch)
273 struct ia64_sal_retval ret_stuff;
275 ret_stuff.status = 0;
279 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTC, (uint64_t)ch, 0, 0, 0, 0, 0, 0);
281 return ret_stuff.status;
285 * Sends the given buffer to the console.
288 ia64_sn_console_putb(const char *buf, int len)
290 struct ia64_sal_retval ret_stuff;
292 ret_stuff.status = 0;
296 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTB, (uint64_t)buf, (uint64_t)len, 0, 0, 0, 0, 0);
298 if ( ret_stuff.status == 0 ) {
305 * Print a platform error record
308 ia64_sn_plat_specific_err_print(int (*hook)(const char*, ...), char *rec)
310 struct ia64_sal_retval ret_stuff;
312 ret_stuff.status = 0;
316 SAL_CALL_REENTRANT(ret_stuff, SN_SAL_PRINT_ERROR, (uint64_t)hook, (uint64_t)rec, 0, 0, 0, 0, 0);
318 return ret_stuff.status;
322 * Check for Platform errors
325 ia64_sn_plat_cpei_handler(void)
327 struct ia64_sal_retval ret_stuff;
329 ret_stuff.status = 0;
333 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_LOG_CE, 0, 0, 0, 0, 0, 0, 0);
335 return ret_stuff.status;
339 * Set Error Handling Features
342 ia64_sn_plat_set_error_handling_features(void)
344 struct ia64_sal_retval ret_stuff;
346 ret_stuff.status = 0;
350 SAL_CALL_REENTRANT(ret_stuff, SN_SAL_SET_ERROR_HANDLING_FEATURES,
351 (SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV | SAL_ERR_FEAT_LOG_SBES),
354 return ret_stuff.status;
358 * Checks for console input.
361 ia64_sn_console_check(int *result)
363 struct ia64_sal_retval ret_stuff;
365 ret_stuff.status = 0;
369 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_POLL, 0, 0, 0, 0, 0, 0, 0);
371 /* result is in 'v0' */
372 *result = (int)ret_stuff.v0;
374 return ret_stuff.status;
378 * Checks console interrupt status
381 ia64_sn_console_intr_status(void)
383 struct ia64_sal_retval ret_stuff;
385 ret_stuff.status = 0;
389 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
390 0, SAL_CONSOLE_INTR_STATUS,
393 if (ret_stuff.status == 0) {
401 * Enable an interrupt on the SAL console device.
404 ia64_sn_console_intr_enable(uint64_t intr)
406 struct ia64_sal_retval ret_stuff;
408 ret_stuff.status = 0;
412 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
413 intr, SAL_CONSOLE_INTR_ON,
418 * Disable an interrupt on the SAL console device.
421 ia64_sn_console_intr_disable(uint64_t intr)
423 struct ia64_sal_retval ret_stuff;
425 ret_stuff.status = 0;
429 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
430 intr, SAL_CONSOLE_INTR_OFF,
435 * Sends a character buffer to the console asynchronously.
438 ia64_sn_console_xmit_chars(char *buf, int len)
440 struct ia64_sal_retval ret_stuff;
442 ret_stuff.status = 0;
446 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_XMIT_CHARS,
447 (uint64_t)buf, (uint64_t)len,
450 if (ret_stuff.status == 0) {
458 * Returns the iobrick module Id
461 ia64_sn_sysctl_iobrick_module_get(nasid_t nasid, int *result)
463 struct ia64_sal_retval ret_stuff;
465 ret_stuff.status = 0;
469 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYSCTL_IOBRICK_MODULE_GET, nasid, 0, 0, 0, 0, 0, 0);
471 /* result is in 'v0' */
472 *result = (int)ret_stuff.v0;
474 return ret_stuff.status;
478 * ia64_sn_pod_mode - call the SN_SAL_POD_MODE function
480 * SN_SAL_POD_MODE actually takes an argument, but it's always
481 * 0 when we call it from the kernel, so we don't have to expose
485 ia64_sn_pod_mode(void)
487 struct ia64_sal_retval isrv;
488 SAL_CALL_REENTRANT(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
495 * ia64_sn_probe_mem - read from memory safely
496 * @addr: address to probe
497 * @size: number bytes to read (1,2,4,8)
498 * @data_ptr: address to store value read by probe (-1 returned if probe fails)
500 * Call into the SAL to do a memory read. If the read generates a machine
501 * check, this routine will recover gracefully and return -1 to the caller.
502 * @addr is usually a kernel virtual address in uncached space (i.e. the
503 * address starts with 0xc), but if called in physical mode, @addr should
504 * be a physical address.
507 * 0 - probe successful
508 * 1 - probe failed (generated MCA)
513 ia64_sn_probe_mem(long addr, long size, void *data_ptr)
515 struct ia64_sal_retval isrv;
517 SAL_CALL(isrv, SN_SAL_PROBE, addr, size, 0, 0, 0, 0, 0);
522 *((u8*)data_ptr) = (u8)isrv.v0;
525 *((u16*)data_ptr) = (u16)isrv.v0;
528 *((u32*)data_ptr) = (u32)isrv.v0;
531 *((u64*)data_ptr) = (u64)isrv.v0;
541 * Retrieve the system serial number as an ASCII string.
544 ia64_sn_sys_serial_get(char *buf)
546 struct ia64_sal_retval ret_stuff;
547 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYS_SERIAL_GET, buf, 0, 0, 0, 0, 0, 0);
548 return ret_stuff.status;
551 extern char sn_system_serial_number_string[];
552 extern u64 sn_partition_serial_number;
555 sn_system_serial_number(void) {
556 if (sn_system_serial_number_string[0]) {
557 return(sn_system_serial_number_string);
559 ia64_sn_sys_serial_get(sn_system_serial_number_string);
560 return(sn_system_serial_number_string);
566 * Returns a unique id number for this system and partition (suitable for
567 * use with license managers), based in part on the system serial number.
570 ia64_sn_partition_serial_get(void)
572 struct ia64_sal_retval ret_stuff;
573 ia64_sal_oemcall_reentrant(&ret_stuff, SN_SAL_PARTITION_SERIAL_GET, 0,
575 if (ret_stuff.status != 0)
581 sn_partition_serial_number_val(void) {
582 if (unlikely(sn_partition_serial_number == 0)) {
583 sn_partition_serial_number = ia64_sn_partition_serial_get();
585 return sn_partition_serial_number;
589 * Returns the physical address of the partition's reserved page through
590 * an iterative number of calls.
592 * On first call, 'cookie' and 'len' should be set to 0, and 'addr'
593 * set to the nasid of the partition whose reserved page's address is
595 * On subsequent calls, pass the values, that were passed back on the
598 * While the return status equals SALRET_MORE_PASSES, keep calling
599 * this function after first copying 'len' bytes starting at 'addr'
600 * into 'buf'. Once the return status equals SALRET_OK, 'addr' will
601 * be the physical address of the partition's reserved page. If the
602 * return status equals neither of these, an error as occurred.
605 sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
607 struct ia64_sal_retval rv;
608 ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie,
609 *addr, buf, *len, 0, 0, 0);
617 * Register or unregister a physical address range being referenced across
618 * a partition boundary for which certain SAL errors should be scanned for,
619 * cleaned up and ignored. This is of value for kernel partitioning code only.
620 * Values for the operation argument:
621 * 1 = register this address range with SAL
622 * 0 = unregister this address range with SAL
624 * SAL maintains a reference count on an address range in case it is registered
627 * On success, returns the reference count of the address range after the SAL
628 * call has performed the current registration/unregistration. Returns a
629 * negative value if an error occurred.
632 sn_register_xp_addr_region(u64 paddr, u64 len, int operation)
634 struct ia64_sal_retval ret_stuff;
635 ia64_sal_oemcall(&ret_stuff, SN_SAL_XP_ADDR_REGION, paddr, len,
636 (u64)operation, 0, 0, 0, 0);
637 return ret_stuff.status;
641 * Register or unregister an instruction range for which SAL errors should
642 * be ignored. If an error occurs while in the registered range, SAL jumps
643 * to return_addr after ignoring the error. Values for the operation argument:
644 * 1 = register this instruction range with SAL
645 * 0 = unregister this instruction range with SAL
647 * Returns 0 on success, or a negative value if an error occurred.
650 sn_register_nofault_code(u64 start_addr, u64 end_addr, u64 return_addr,
651 int virtual, int operation)
653 struct ia64_sal_retval ret_stuff;
656 call = SN_SAL_NO_FAULT_ZONE_VIRTUAL;
658 call = SN_SAL_NO_FAULT_ZONE_PHYSICAL;
660 ia64_sal_oemcall(&ret_stuff, call, start_addr, end_addr, return_addr,
662 return ret_stuff.status;
666 * Change or query the coherence domain for this partition. Each cpu-based
667 * nasid is represented by a bit in an array of 64-bit words:
668 * 0 = not in this partition's coherency domain
669 * 1 = in this partition's coherency domain
671 * It is not possible for the local system's nasids to be removed from
672 * the coherency domain. Purpose of the domain arguments:
673 * new_domain = set the coherence domain to the given nasids
674 * old_domain = return the current coherence domain
676 * Returns 0 on success, or a negative value if an error occurred.
679 sn_change_coherence(u64 *new_domain, u64 *old_domain)
681 struct ia64_sal_retval ret_stuff;
682 ia64_sal_oemcall(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain,
683 (u64)old_domain, 0, 0, 0, 0, 0);
684 return ret_stuff.status;
688 * Change memory access protections for a physical address range.
689 * nasid_array is not used on Altix, but may be in future architectures.
690 * Available memory protection access classes are defined after the function.
693 sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
695 struct ia64_sal_retval ret_stuff;
697 unsigned long irq_flags;
699 cnodeid = nasid_to_cnodeid(get_node_number(paddr));
700 // spin_lock(&NODEPDA(cnodeid)->bist_lock);
701 local_irq_save(irq_flags);
702 ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len,
703 (u64)nasid_array, perms, 0, 0, 0);
704 local_irq_restore(irq_flags);
705 // spin_unlock(&NODEPDA(cnodeid)->bist_lock);
706 return ret_stuff.status;
708 #define SN_MEMPROT_ACCESS_CLASS_0 0x14a080
709 #define SN_MEMPROT_ACCESS_CLASS_1 0x2520c2
710 #define SN_MEMPROT_ACCESS_CLASS_2 0x14a1ca
711 #define SN_MEMPROT_ACCESS_CLASS_3 0x14a290
712 #define SN_MEMPROT_ACCESS_CLASS_6 0x084080
713 #define SN_MEMPROT_ACCESS_CLASS_7 0x021080
716 * Turns off system power.
719 ia64_sn_power_down(void)
721 struct ia64_sal_retval ret_stuff;
722 SAL_CALL(ret_stuff, SN_SAL_SYSTEM_POWER_DOWN, 0, 0, 0, 0, 0, 0, 0);
729 * ia64_sn_fru_capture - tell the system controller to capture hw state
731 * This routine will call the SAL which will tell the system controller(s)
732 * to capture hw mmr information from each SHub in the system.
735 ia64_sn_fru_capture(void)
737 struct ia64_sal_retval isrv;
738 SAL_CALL(isrv, SN_SAL_SYSCTL_FRU_CAPTURE, 0, 0, 0, 0, 0, 0, 0);
745 * Performs an operation on a PCI bus or slot -- power up, power down
749 ia64_sn_sysctl_iobrick_pci_op(nasid_t n, u64 connection_type,
753 struct ia64_sal_retval rv = {0, 0, 0, 0};
755 SAL_CALL_NOLOCK(rv, SN_SAL_SYSCTL_IOBRICK_PCI_OP, connection_type, n, action,
756 bus, (u64) slot, 0, 0);
764 * Open a subchannel for sending arbitrary data to the system
765 * controller network via the system controller device associated with
766 * 'nasid'. Return the subchannel number or a negative error code.
769 ia64_sn_irtr_open(nasid_t nasid)
771 struct ia64_sal_retval rv;
772 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_OPEN, nasid,
778 * Close system controller subchannel 'subch' previously opened on 'nasid'.
781 ia64_sn_irtr_close(nasid_t nasid, int subch)
783 struct ia64_sal_retval rv;
784 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_CLOSE,
785 (u64) nasid, (u64) subch, 0, 0, 0, 0);
786 return (int) rv.status;
790 * Read data from system controller associated with 'nasid' on
791 * subchannel 'subch'. The buffer to be filled is pointed to by
792 * 'buf', and its capacity is in the integer pointed to by 'len'. The
793 * referent of 'len' is set to the number of bytes read by the SAL
794 * call. The return value is either SALRET_OK (for bytes read) or
795 * SALRET_ERROR (for error or "no data available").
798 ia64_sn_irtr_recv(nasid_t nasid, int subch, char *buf, int *len)
800 struct ia64_sal_retval rv;
801 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_RECV,
802 (u64) nasid, (u64) subch, (u64) buf, (u64) len,
804 return (int) rv.status;
808 * Write data to the system controller network via the system
809 * controller associated with 'nasid' on suchannel 'subch'. The
810 * buffer to be written out is pointed to by 'buf', and 'len' is the
811 * number of bytes to be written. The return value is either the
812 * number of bytes written (which could be zero) or a negative error
816 ia64_sn_irtr_send(nasid_t nasid, int subch, char *buf, int len)
818 struct ia64_sal_retval rv;
819 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_SEND,
820 (u64) nasid, (u64) subch, (u64) buf, (u64) len,
826 * Check whether any interrupts are pending for the system controller
827 * associated with 'nasid' and its subchannel 'subch'. The return
828 * value is a mask of pending interrupts (SAL_IROUTER_INTR_XMIT and/or
829 * SAL_IROUTER_INTR_RECV).
832 ia64_sn_irtr_intr(nasid_t nasid, int subch)
834 struct ia64_sal_retval rv;
835 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_STATUS,
836 (u64) nasid, (u64) subch, 0, 0, 0, 0);
841 * Enable the interrupt indicated by the intr parameter (either
842 * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
845 ia64_sn_irtr_intr_enable(nasid_t nasid, int subch, u64 intr)
847 struct ia64_sal_retval rv;
848 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_ON,
849 (u64) nasid, (u64) subch, intr, 0, 0, 0);
854 * Disable the interrupt indicated by the intr parameter (either
855 * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
858 ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr)
860 struct ia64_sal_retval rv;
861 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_OFF,
862 (u64) nasid, (u64) subch, intr, 0, 0, 0);
867 * Set up a node as the point of contact for system controller
868 * environmental event delivery.
871 ia64_sn_sysctl_event_init(nasid_t nasid)
873 struct ia64_sal_retval rv;
874 SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid,
880 * ia64_sn_get_fit_compt - read a FIT entry from the PROM header
881 * @nasid: NASID of node to read
882 * @index: FIT entry index to be retrieved (0..n)
883 * @fitentry: 16 byte buffer where FIT entry will be stored.
884 * @banbuf: optional buffer for retrieving banner
885 * @banlen: length of banner buffer
887 * Access to the physical PROM chips needs to be serialized since reads and
888 * writes can't occur at the same time, so we need to call into the SAL when
889 * we want to look at the FIT entries on the chips.
893 * %SALRET_INVALID_ARG if index too big
894 * %SALRET_NOT_IMPLEMENTED if running on older PROM
895 * ??? if nasid invalid OR banner buffer not large enough
898 ia64_sn_get_fit_compt(u64 nasid, u64 index, void *fitentry, void *banbuf,
901 struct ia64_sal_retval rv;
902 SAL_CALL_NOLOCK(rv, SN_SAL_GET_FIT_COMPT, nasid, index, fitentry,
903 banbuf, banlen, 0, 0);
904 return (int) rv.status;
908 * Initialize the SAL components of the system controller
909 * communication driver; specifically pass in a sizable buffer that
910 * can be used for allocation of subchannel queues as new subchannels
911 * are opened. "buf" points to the buffer, and "len" specifies its
915 ia64_sn_irtr_init(nasid_t nasid, void *buf, int len)
917 struct ia64_sal_retval rv;
918 SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INIT,
919 (u64) nasid, (u64) buf, (u64) len, 0, 0, 0);
920 return (int) rv.status;
924 * Returns the nasid, subnode & slice corresponding to a SAPIC ID
927 * arg0 - SN_SAL_GET_SAPIC_INFO
928 * arg1 - sapicid (lid >> 16)
935 ia64_sn_get_sapic_info(int sapicid, int *nasid, int *subnode, int *slice)
937 struct ia64_sal_retval ret_stuff;
939 ret_stuff.status = 0;
943 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SAPIC_INFO, sapicid, 0, 0, 0, 0, 0, 0);
945 /***** BEGIN HACK - temp til old proms no longer supported ********/
946 if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
947 if (nasid) *nasid = sapicid & 0xfff;
948 if (subnode) *subnode = (sapicid >> 13) & 1;
949 if (slice) *slice = (sapicid >> 12) & 3;
952 /***** END HACK *******/
954 if (ret_stuff.status < 0)
955 return ret_stuff.status;
957 if (nasid) *nasid = (int) ret_stuff.v0;
958 if (subnode) *subnode = (int) ret_stuff.v1;
959 if (slice) *slice = (int) ret_stuff.v2;
964 * Returns information about the HUB/SHUB.
966 * arg0 - SN_SAL_GET_SN_INFO
967 * arg1 - 0 (other values reserved for future use)
970 * [7:0] - shub type (0=shub1, 1=shub2)
971 * [15:8] - Log2 max number of nodes in entire system (includes
972 * C-bricks, I-bricks, etc)
973 * [23:16] - Log2 of nodes per sharing domain
974 * [31:24] - partition ID
975 * [39:32] - coherency_id
976 * [47:40] - regionsize
978 * [15:0] - nasid mask (ex., 0x7ff for 11 bit nasid)
979 * [23:15] - bit position of low nasid bit
982 ia64_sn_get_sn_info(int fc, u8 *shubtype, u16 *nasid_bitmask, u8 *nasid_shift,
983 u8 *systemsize, u8 *sharing_domain_size, u8 *partid, u8 *coher, u8 *reg)
985 struct ia64_sal_retval ret_stuff;
987 ret_stuff.status = 0;
991 SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0);
993 if (ret_stuff.status < 0)
994 return ret_stuff.status;
996 if (shubtype) *shubtype = ret_stuff.v0 & 0xff;
997 if (systemsize) *systemsize = (ret_stuff.v0 >> 8) & 0xff;
998 if (sharing_domain_size) *sharing_domain_size = (ret_stuff.v0 >> 16) & 0xff;
999 if (partid) *partid = (ret_stuff.v0 >> 24) & 0xff;
1000 if (coher) *coher = (ret_stuff.v0 >> 32) & 0xff;
1001 if (reg) *reg = (ret_stuff.v0 >> 40) & 0xff;
1002 if (nasid_bitmask) *nasid_bitmask = (ret_stuff.v1 & 0xffff);
1003 if (nasid_shift) *nasid_shift = (ret_stuff.v1 >> 16) & 0xff;
1008 * This is the access point to the Altix PROM hardware performance
1009 * and status monitoring interface. For info on using this, see
1010 * include/asm-ia64/sn/sn2/sn_hwperf.h
1013 ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2,
1014 u64 a3, u64 a4, int *v0)
1016 struct ia64_sal_retval rv;
1017 SAL_CALL_NOLOCK(rv, SN_SAL_HWPERF_OP, (u64)nasid,
1018 opcode, a0, a1, a2, a3, a4);
1021 return (int) rv.status;
1025 ia64_sn_ioif_get_pci_topology(u64 buf, u64 len)
1027 struct ia64_sal_retval rv;
1028 SAL_CALL_NOLOCK(rv, SN_SAL_IOIF_GET_PCI_TOPOLOGY, buf, len, 0, 0, 0, 0, 0);
1029 return (int) rv.status;
1033 * BTE error recovery is implemented in SAL
1036 ia64_sn_bte_recovery(nasid_t nasid)
1038 struct ia64_sal_retval rv;
1041 SAL_CALL_NOLOCK(rv, SN_SAL_BTE_RECOVER, 0, 0, 0, 0, 0, 0, 0);
1042 if (rv.status == SALRET_NOT_IMPLEMENTED)
1044 return (int) rv.status;
1048 ia64_sn_is_fake_prom(void)
1050 struct ia64_sal_retval rv;
1051 SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0);
1052 return (rv.status == 0);
1055 #endif /* _ASM_IA64_SN_SN_SAL_H */