1 #ifndef _ASM_IA64_SAL_H
2 #define _ASM_IA64_SAL_H
5 * System Abstraction Layer definitions.
7 * This is based on version 2.5 of the manual "IA-64 System
10 * Copyright (C) 2001 Intel
11 * Copyright (C) 2002 Jenna Hall <jenna.s.hall@intel.com>
12 * Copyright (C) 2001 Fred Lewis <frederick.v.lewis@intel.com>
13 * Copyright (C) 1998, 1999, 2001, 2003 Hewlett-Packard Co
14 * David Mosberger-Tang <davidm@hpl.hp.com>
15 * Copyright (C) 1999 Srinivasa Prasad Thirumalachar <sprasad@sprasad.engr.sgi.com>
17 * 02/01/04 J. Hall Updated Error Record Structures to conform to July 2001
18 * revision of the SAL spec.
19 * 01/01/03 fvlewis Updated Error Record Structures to conform with Nov. 2000
20 * revision of the SAL spec.
21 * 99/09/29 davidm Updated for SAL 2.6.
22 * 00/03/29 cfleck Updated SAL Error Logging info for processor (SAL 2.6)
23 * (plus examples of platform error info structures from smariset @ Intel)
26 #define IA64_SAL_PLATFORM_FEATURE_BUS_LOCK_BIT 0
27 #define IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT_BIT 1
28 #define IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT_BIT 2
29 #define IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT_BIT 3
31 #define IA64_SAL_PLATFORM_FEATURE_BUS_LOCK (1<<IA64_SAL_PLATFORM_FEATURE_BUS_LOCK_BIT)
32 #define IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT (1<<IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT_BIT)
33 #define IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT (1<<IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT_BIT)
34 #define IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT (1<<IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT_BIT)
38 #include <linux/bcd.h>
39 #include <linux/spinlock.h>
40 #include <linux/efi.h>
43 #include <asm/system.h>
46 extern spinlock_t sal_lock;
48 /* SAL spec _requires_ eight args for each call. */
49 #define __SAL_CALL(result,a0,a1,a2,a3,a4,a5,a6,a7) \
50 result = (*ia64_sal)(a0,a1,a2,a3,a4,a5,a6,a7)
52 # define SAL_CALL(result,args...) do { \
53 unsigned long __ia64_sc_flags; \
54 struct ia64_fpreg __ia64_sc_fr[6]; \
55 ia64_save_scratch_fpregs(__ia64_sc_fr); \
56 spin_lock_irqsave(&sal_lock, __ia64_sc_flags); \
57 __SAL_CALL(result, args); \
58 spin_unlock_irqrestore(&sal_lock, __ia64_sc_flags); \
59 ia64_load_scratch_fpregs(__ia64_sc_fr); \
62 # define SAL_CALL_NOLOCK(result,args...) do { \
63 unsigned long __ia64_scn_flags; \
64 struct ia64_fpreg __ia64_scn_fr[6]; \
65 ia64_save_scratch_fpregs(__ia64_scn_fr); \
66 local_irq_save(__ia64_scn_flags); \
67 __SAL_CALL(result, args); \
68 local_irq_restore(__ia64_scn_flags); \
69 ia64_load_scratch_fpregs(__ia64_scn_fr); \
72 # define SAL_CALL_REENTRANT(result,args...) do { \
73 struct ia64_fpreg __ia64_scs_fr[6]; \
74 ia64_save_scratch_fpregs(__ia64_scs_fr); \
76 __SAL_CALL(result, args); \
78 ia64_load_scratch_fpregs(__ia64_scs_fr); \
81 #define SAL_SET_VECTORS 0x01000000
82 #define SAL_GET_STATE_INFO 0x01000001
83 #define SAL_GET_STATE_INFO_SIZE 0x01000002
84 #define SAL_CLEAR_STATE_INFO 0x01000003
85 #define SAL_MC_RENDEZ 0x01000004
86 #define SAL_MC_SET_PARAMS 0x01000005
87 #define SAL_REGISTER_PHYSICAL_ADDR 0x01000006
89 #define SAL_CACHE_FLUSH 0x01000008
90 #define SAL_CACHE_INIT 0x01000009
91 #define SAL_PCI_CONFIG_READ 0x01000010
92 #define SAL_PCI_CONFIG_WRITE 0x01000011
93 #define SAL_FREQ_BASE 0x01000012
94 #define SAL_PHYSICAL_ID_INFO 0x01000013
96 #define SAL_UPDATE_PAL 0x01000020
98 struct ia64_sal_retval {
100 * A zero status value indicates call completed without error.
101 * A negative status value indicates reason of call failure.
102 * A positive status value indicates success but an
103 * informational value should be printed (e.g., "reboot for
104 * change to take effect").
112 typedef struct ia64_sal_retval (*ia64_sal_handler) (u64, ...);
115 SAL_FREQ_BASE_PLATFORM = 0,
116 SAL_FREQ_BASE_INTERVAL_TIMER = 1,
117 SAL_FREQ_BASE_REALTIME_CLOCK = 2
121 * The SAL system table is followed by a variable number of variable
122 * length descriptors. The structure of these descriptors follows
124 * The defininition follows SAL specs from July 2000
126 struct ia64_sal_systab {
127 u8 signature[4]; /* should be "SST_" */
128 u32 size; /* size of this table in bytes */
131 u16 entry_count; /* # of entries in variable portion */
138 /* oem_id & product_id: terminating NUL is missing if string is exactly 32 bytes long. */
140 u8 product_id[32]; /* ASCII product id */
144 enum sal_systab_entry_type {
145 SAL_DESC_ENTRY_POINT = 0,
147 SAL_DESC_PLATFORM_FEATURE = 2,
150 SAL_DESC_AP_WAKEUP = 5
162 #define SAL_DESC_SIZE(type) "\060\040\020\040\020\020"[(unsigned) type]
164 typedef struct ia64_sal_desc_entry_point {
171 }ia64_sal_desc_entry_point_t;
173 typedef struct ia64_sal_desc_memory {
175 u8 used_by_sal; /* needs to be mapped for SAL? */
176 u8 mem_attr; /* current memory attribute setting */
177 u8 access_rights; /* access rights set up by SAL */
178 u8 mem_attr_mask; /* mask of supported memory attributes */
180 u8 mem_type; /* memory type */
181 u8 mem_usage; /* memory usage */
182 u64 addr; /* physical address of memory */
183 u32 length; /* length (multiple of 4KB pages) */
186 } ia64_sal_desc_memory_t;
188 typedef struct ia64_sal_desc_platform_feature {
192 } ia64_sal_desc_platform_feature_t;
194 typedef struct ia64_sal_desc_tr {
196 u8 tr_type; /* 0 == instruction, 1 == data */
197 u8 regnum; /* translation register number */
199 u64 addr; /* virtual address of area covered */
200 u64 page_size; /* encoded page size */
202 } ia64_sal_desc_tr_t;
204 typedef struct ia64_sal_desc_ptc {
207 u32 num_domains; /* # of coherence domains */
208 u64 domain_info; /* physical address of domain info table */
209 } ia64_sal_desc_ptc_t;
211 typedef struct ia64_sal_ptc_domain_info {
212 u64 proc_count; /* number of processors in domain */
213 u64 proc_list; /* physical address of LID array */
214 } ia64_sal_ptc_domain_info_t;
216 typedef struct ia64_sal_ptc_domain_proc_entry {
217 u64 id : 8; /* id of processor */
218 u64 eid : 8; /* eid of processor */
219 } ia64_sal_ptc_domain_proc_entry_t;
222 #define IA64_SAL_AP_EXTERNAL_INT 0
224 typedef struct ia64_sal_desc_ap_wakeup {
226 u8 mechanism; /* 0 == external interrupt */
228 u64 vector; /* interrupt vector in range 0x10-0xff */
229 } ia64_sal_desc_ap_wakeup_t ;
231 extern ia64_sal_handler ia64_sal;
232 extern struct ia64_sal_desc_ptc *ia64_ptc_domain_info;
234 extern unsigned short sal_revision; /* supported SAL spec revision */
235 extern unsigned short sal_version; /* SAL version; OEM dependent */
236 #define SAL_VERSION_CODE(major, minor) ((BIN2BCD(major) << 8) | BIN2BCD(minor))
238 extern const char *ia64_sal_strerror (long status);
239 extern void ia64_sal_init (struct ia64_sal_systab *sal_systab);
241 /* SAL information type encodings */
243 SAL_INFO_TYPE_MCA = 0, /* Machine check abort information */
244 SAL_INFO_TYPE_INIT = 1, /* Init information */
245 SAL_INFO_TYPE_CMC = 2, /* Corrected machine check information */
246 SAL_INFO_TYPE_CPE = 3 /* Corrected platform error information */
249 /* Encodings for machine check parameter types */
251 SAL_MC_PARAM_RENDEZ_INT = 1, /* Rendezvous interrupt */
252 SAL_MC_PARAM_RENDEZ_WAKEUP = 2, /* Wakeup */
253 SAL_MC_PARAM_CPE_INT = 3 /* Corrected Platform Error Int */
256 /* Encodings for rendezvous mechanisms */
258 SAL_MC_PARAM_MECHANISM_INT = 1, /* Use interrupt */
259 SAL_MC_PARAM_MECHANISM_MEM = 2 /* Use memory synchronization variable*/
262 /* Encodings for vectors which can be registered by the OS with SAL */
264 SAL_VECTOR_OS_MCA = 0,
265 SAL_VECTOR_OS_INIT = 1,
266 SAL_VECTOR_OS_BOOT_RENDEZ = 2
269 /* Encodings for mca_opt parameter sent to SAL_MC_SET_PARAMS */
270 #define SAL_MC_PARAM_RZ_ALWAYS 0x1
271 #define SAL_MC_PARAM_BINIT_ESCALATE 0x10
274 * Definition of the SAL Error Log from the SAL spec
277 /* SAL Error Record Section GUID Definitions */
278 #define SAL_PROC_DEV_ERR_SECT_GUID \
279 EFI_GUID(0xe429faf1, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
280 #define SAL_PLAT_MEM_DEV_ERR_SECT_GUID \
281 EFI_GUID(0xe429faf2, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
282 #define SAL_PLAT_SEL_DEV_ERR_SECT_GUID \
283 EFI_GUID(0xe429faf3, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
284 #define SAL_PLAT_PCI_BUS_ERR_SECT_GUID \
285 EFI_GUID(0xe429faf4, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
286 #define SAL_PLAT_SMBIOS_DEV_ERR_SECT_GUID \
287 EFI_GUID(0xe429faf5, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
288 #define SAL_PLAT_PCI_COMP_ERR_SECT_GUID \
289 EFI_GUID(0xe429faf6, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
290 #define SAL_PLAT_SPECIFIC_ERR_SECT_GUID \
291 EFI_GUID(0xe429faf7, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
292 #define SAL_PLAT_HOST_CTLR_ERR_SECT_GUID \
293 EFI_GUID(0xe429faf8, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
294 #define SAL_PLAT_BUS_ERR_SECT_GUID \
295 EFI_GUID(0xe429faf9, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
297 #define MAX_CACHE_ERRORS 6
298 #define MAX_TLB_ERRORS 6
299 #define MAX_BUS_ERRORS 1
301 /* Definition of version according to SAL spec for logging purposes */
302 typedef struct sal_log_revision {
303 u8 minor; /* BCD (0..99) */
304 u8 major; /* BCD (0..99) */
305 } sal_log_revision_t;
307 /* Definition of timestamp according to SAL spec for logging purposes */
308 typedef struct sal_log_timestamp {
309 u8 slh_second; /* Second (0..59) */
310 u8 slh_minute; /* Minute (0..59) */
311 u8 slh_hour; /* Hour (0..23) */
313 u8 slh_day; /* Day (1..31) */
314 u8 slh_month; /* Month (1..12) */
315 u8 slh_year; /* Year (00..99) */
316 u8 slh_century; /* Century (19, 20, 21, ...) */
317 } sal_log_timestamp_t;
319 /* Definition of log record header structures */
320 typedef struct sal_log_record_header {
321 u64 id; /* Unique monotonically increasing ID */
322 sal_log_revision_t revision; /* Major and Minor revision of header */
323 u16 severity; /* Error Severity */
324 u32 len; /* Length of this error log in bytes */
325 sal_log_timestamp_t timestamp; /* Timestamp */
326 efi_guid_t platform_guid; /* Unique OEM Platform ID */
327 } sal_log_record_header_t;
329 #define sal_log_severity_recoverable 0
330 #define sal_log_severity_fatal 1
331 #define sal_log_severity_corrected 2
333 /* Definition of log section header structures */
334 typedef struct sal_log_sec_header {
335 efi_guid_t guid; /* Unique Section ID */
336 sal_log_revision_t revision; /* Major and Minor revision of Section */
338 u32 len; /* Section length */
339 } sal_log_section_hdr_t;
341 typedef struct sal_log_mod_error_info {
344 requestor_identifier : 1,
345 responder_identifier : 1,
346 target_identifier : 1,
351 u64 requestor_identifier;
352 u64 responder_identifier;
353 u64 target_identifier;
355 } sal_log_mod_error_info_t;
357 typedef struct sal_processor_static_info {
367 pal_min_state_area_t min_state_area;
372 struct ia64_fpreg __attribute__ ((packed)) fr[128];
373 } sal_processor_static_info_t;
375 struct sal_cpuid_info {
380 typedef struct sal_log_processor_info {
381 sal_log_section_hdr_t header;
383 u64 proc_error_map : 1,
384 proc_state_param : 1,
386 psi_static_struct : 1,
390 num_reg_file_check : 4,
396 u64 proc_state_parameter;
399 * The rest of this structure consists of variable-length arrays, which can't be
402 sal_log_mod_error_info_t info[0];
404 * This is what the rest looked like if C supported variable-length arrays:
406 * sal_log_mod_error_info_t cache_check_info[.valid.num_cache_check];
407 * sal_log_mod_error_info_t tlb_check_info[.valid.num_tlb_check];
408 * sal_log_mod_error_info_t bus_check_info[.valid.num_bus_check];
409 * sal_log_mod_error_info_t reg_file_check_info[.valid.num_reg_file_check];
410 * sal_log_mod_error_info_t ms_check_info[.valid.num_ms_check];
411 * struct sal_cpuid_info cpuid_info;
412 * sal_processor_static_info_t processor_static_info;
414 } sal_log_processor_info_t;
416 /* Given a sal_log_processor_info_t pointer, return a pointer to the processor_static_info: */
417 #define SAL_LPI_PSI_INFO(l) \
418 ({ sal_log_processor_info_t *_l = (l); \
419 ((sal_processor_static_info_t *) \
420 ((char *) _l->info + ((_l->valid.num_cache_check + _l->valid.num_tlb_check \
421 + _l->valid.num_bus_check + _l->valid.num_reg_file_check \
422 + _l->valid.num_ms_check) * sizeof(sal_log_mod_error_info_t) \
423 + sizeof(struct sal_cpuid_info)))); \
426 /* platform error log structures */
428 typedef struct sal_log_mem_dev_err_info {
429 sal_log_section_hdr_t header;
431 u64 error_status : 1,
466 u8 oem_data[1]; /* Variable length data */
467 } sal_log_mem_dev_err_info_t;
469 typedef struct sal_log_sel_dev_err_info {
470 sal_log_section_hdr_t header;
495 } sal_log_sel_dev_err_info_t;
497 typedef struct sal_log_pci_bus_err_info {
498 sal_log_section_hdr_t header;
522 u8 oem_data[1]; /* Variable length data */
523 } sal_log_pci_bus_err_info_t;
525 typedef struct sal_log_smbios_dev_err_info {
526 sal_log_section_hdr_t header;
537 u8 data[1]; /* data of variable length, length == slsmb_length */
538 } sal_log_smbios_dev_err_info_t;
540 typedef struct sal_log_pci_comp_err_info {
541 sal_log_section_hdr_t header;
564 u64 reg_data_pairs[1];
566 * array of address/data register pairs is num_mem_regs + num_io_regs elements
567 * long. Each array element consists of a u64 address followed by a u64 data
568 * value. The oem_data array immediately follows the reg_data_pairs array
570 u8 oem_data[1]; /* Variable length data */
571 } sal_log_pci_comp_err_info_t;
573 typedef struct sal_log_plat_specific_err_info {
574 sal_log_section_hdr_t header;
583 u8 oem_data[1]; /* platform specific variable length data */
584 } sal_log_plat_specific_err_info_t;
586 typedef struct sal_log_host_ctlr_err_info {
587 sal_log_section_hdr_t header;
602 u8 oem_data[1]; /* Variable length OEM data */
603 } sal_log_host_ctlr_err_info_t;
605 typedef struct sal_log_plat_bus_err_info {
606 sal_log_section_hdr_t header;
621 u8 oem_data[1]; /* Variable length OEM data */
622 } sal_log_plat_bus_err_info_t;
624 /* Overall platform error section structure */
625 typedef union sal_log_platform_err_info {
626 sal_log_mem_dev_err_info_t mem_dev_err;
627 sal_log_sel_dev_err_info_t sel_dev_err;
628 sal_log_pci_bus_err_info_t pci_bus_err;
629 sal_log_smbios_dev_err_info_t smbios_dev_err;
630 sal_log_pci_comp_err_info_t pci_comp_err;
631 sal_log_plat_specific_err_info_t plat_specific_err;
632 sal_log_host_ctlr_err_info_t host_ctlr_err;
633 sal_log_plat_bus_err_info_t plat_bus_err;
634 } sal_log_platform_err_info_t;
636 /* SAL log over-all, multi-section error record structure (processor+platform) */
637 typedef struct err_rec {
638 sal_log_record_header_t sal_elog_header;
639 sal_log_processor_info_t proc_err;
640 sal_log_platform_err_info_t plat_err;
641 u8 oem_data_pad[1024];
645 * Now define a couple of inline functions for improved type checking
649 ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
650 unsigned long *drift_info)
652 struct ia64_sal_retval isrv;
654 SAL_CALL(isrv, SAL_FREQ_BASE, which, 0, 0, 0, 0, 0, 0);
655 *ticks_per_second = isrv.v0;
656 *drift_info = isrv.v1;
660 /* Flush all the processor and platform level instruction and/or data caches */
662 ia64_sal_cache_flush (u64 cache_type)
664 struct ia64_sal_retval isrv;
665 SAL_CALL(isrv, SAL_CACHE_FLUSH, cache_type, 0, 0, 0, 0, 0, 0);
670 /* Initialize all the processor and platform level instruction and data caches */
672 ia64_sal_cache_init (void)
674 struct ia64_sal_retval isrv;
675 SAL_CALL(isrv, SAL_CACHE_INIT, 0, 0, 0, 0, 0, 0, 0);
680 * Clear the processor and platform information logged by SAL with respect to the machine
681 * state at the time of MCA's, INITs, CMCs, or CPEs.
684 ia64_sal_clear_state_info (u64 sal_info_type)
686 struct ia64_sal_retval isrv;
687 SAL_CALL_REENTRANT(isrv, SAL_CLEAR_STATE_INFO, sal_info_type, 0,
693 /* Get the processor and platform information logged by SAL with respect to the machine
694 * state at the time of the MCAs, INITs, CMCs, or CPEs.
697 ia64_sal_get_state_info (u64 sal_info_type, u64 *sal_info)
699 struct ia64_sal_retval isrv;
700 SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO, sal_info_type, 0,
701 sal_info, 0, 0, 0, 0);
709 * Get the maximum size of the information logged by SAL with respect to the machine state
710 * at the time of MCAs, INITs, CMCs, or CPEs.
713 ia64_sal_get_state_info_size (u64 sal_info_type)
715 struct ia64_sal_retval isrv;
716 SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO_SIZE, sal_info_type, 0,
724 * Causes the processor to go into a spin loop within SAL where SAL awaits a wakeup from
725 * the monarch processor. Must not lock, because it will not return on any cpu until the
726 * monarch processor sends a wake up.
729 ia64_sal_mc_rendez (void)
731 struct ia64_sal_retval isrv;
732 SAL_CALL_NOLOCK(isrv, SAL_MC_RENDEZ, 0, 0, 0, 0, 0, 0, 0);
737 * Allow the OS to specify the interrupt number to be used by SAL to interrupt OS during
738 * the machine check rendezvous sequence as well as the mechanism to wake up the
739 * non-monarch processor at the end of machine check processing.
740 * Returns the complete ia64_sal_retval because some calls return more than just a status
743 static inline struct ia64_sal_retval
744 ia64_sal_mc_set_params (u64 param_type, u64 i_or_m, u64 i_or_m_val, u64 timeout, u64 rz_always)
746 struct ia64_sal_retval isrv;
747 SAL_CALL(isrv, SAL_MC_SET_PARAMS, param_type, i_or_m, i_or_m_val,
748 timeout, rz_always, 0, 0);
752 /* Read from PCI configuration space */
754 ia64_sal_pci_config_read (u64 pci_config_addr, int type, u64 size, u64 *value)
756 struct ia64_sal_retval isrv;
757 SAL_CALL(isrv, SAL_PCI_CONFIG_READ, pci_config_addr, size, type, 0, 0, 0, 0);
763 /* Write to PCI configuration space */
765 ia64_sal_pci_config_write (u64 pci_config_addr, int type, u64 size, u64 value)
767 struct ia64_sal_retval isrv;
768 SAL_CALL(isrv, SAL_PCI_CONFIG_WRITE, pci_config_addr, size, value,
774 * Register physical addresses of locations needed by SAL when SAL procedures are invoked
778 ia64_sal_register_physical_addr (u64 phys_entry, u64 phys_addr)
780 struct ia64_sal_retval isrv;
781 SAL_CALL(isrv, SAL_REGISTER_PHYSICAL_ADDR, phys_entry, phys_addr,
787 * Register software dependent code locations within SAL. These locations are handlers or
788 * entry points where SAL will pass control for the specified event. These event handlers
789 * are for the bott rendezvous, MCAs and INIT scenarios.
792 ia64_sal_set_vectors (u64 vector_type,
793 u64 handler_addr1, u64 gp1, u64 handler_len1,
794 u64 handler_addr2, u64 gp2, u64 handler_len2)
796 struct ia64_sal_retval isrv;
797 SAL_CALL(isrv, SAL_SET_VECTORS, vector_type,
798 handler_addr1, gp1, handler_len1,
799 handler_addr2, gp2, handler_len2);
804 /* Update the contents of PAL block in the non-volatile storage device */
806 ia64_sal_update_pal (u64 param_buf, u64 scratch_buf, u64 scratch_buf_size,
807 u64 *error_code, u64 *scratch_buf_size_needed)
809 struct ia64_sal_retval isrv;
810 SAL_CALL(isrv, SAL_UPDATE_PAL, param_buf, scratch_buf, scratch_buf_size,
813 *error_code = isrv.v0;
814 if (scratch_buf_size_needed)
815 *scratch_buf_size_needed = isrv.v1;
819 /* Get physical processor die mapping in the platform. */
821 ia64_sal_physical_id_info(u16 *splid)
823 struct ia64_sal_retval isrv;
824 SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0);
830 extern unsigned long sal_platform_features;
832 extern int (*salinfo_platform_oemdata)(const u8 *, u8 **, u64 *);
834 struct sal_ret_values {
835 long r8; long r9; long r10; long r11;
838 #define IA64_SAL_OEMFUNC_MIN 0x02000000
839 #define IA64_SAL_OEMFUNC_MAX 0x03ffffff
841 extern int ia64_sal_oemcall(struct ia64_sal_retval *, u64, u64, u64, u64, u64,
843 extern int ia64_sal_oemcall_nolock(struct ia64_sal_retval *, u64, u64, u64,
844 u64, u64, u64, u64, u64);
845 extern int ia64_sal_oemcall_reentrant(struct ia64_sal_retval *, u64, u64, u64,
846 u64, u64, u64, u64, u64);
847 #ifdef CONFIG_HOTPLUG_CPU
849 * System Abstraction Layer Specification
850 * Section 3.2.5.1: OS_BOOT_RENDEZ to SAL return State.
851 * Note: region regs are stored first in head.S _start. Hence they must
854 struct sal_to_os_boot {
855 u64 rr[8]; /* Region Registers */
856 u64 br[6]; /* br0: return addr into SAL boot rendez routine */
857 u64 gr1; /* SAL:GP */
858 u64 gr12; /* SAL:SP */
859 u64 gr13; /* SAL: Task Pointer */
865 u64 dcr; /* Default Control Register */
873 u64 pr; /* Predicate registers */
874 u64 lc; /* Loop Count */
875 struct ia64_fpreg fp[20];
879 * Global array allocated for NR_CPUS at boot time
881 extern struct sal_to_os_boot sal_boot_rendez_state[NR_CPUS];
883 extern void ia64_jump_to_sal(struct sal_to_os_boot *);
886 extern void ia64_sal_handler_init(void *entry_point, void *gpval);
888 #endif /* __ASSEMBLY__ */
890 #endif /* _ASM_IA64_SAL_H */