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 __IA64_FW_CALL(entry,result,a0,a1,a2,a3,a4,a5,a6,a7) \
50 result = (*entry)(a0,a1,a2,a3,a4,a5,a6,a7)
52 # define IA64_FW_CALL(entry,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 __IA64_FW_CALL(entry, result, args); \
58 spin_unlock_irqrestore(&sal_lock, __ia64_sc_flags); \
59 ia64_load_scratch_fpregs(__ia64_sc_fr); \
62 # define SAL_CALL(result,args...) \
63 IA64_FW_CALL(ia64_sal, result, args);
65 # define SAL_CALL_NOLOCK(result,args...) do { \
66 unsigned long __ia64_scn_flags; \
67 struct ia64_fpreg __ia64_scn_fr[6]; \
68 ia64_save_scratch_fpregs(__ia64_scn_fr); \
69 local_irq_save(__ia64_scn_flags); \
70 __IA64_FW_CALL(ia64_sal, result, args); \
71 local_irq_restore(__ia64_scn_flags); \
72 ia64_load_scratch_fpregs(__ia64_scn_fr); \
75 # define SAL_CALL_REENTRANT(result,args...) do { \
76 struct ia64_fpreg __ia64_scs_fr[6]; \
77 ia64_save_scratch_fpregs(__ia64_scs_fr); \
79 __IA64_FW_CALL(ia64_sal, result, args); \
81 ia64_load_scratch_fpregs(__ia64_scs_fr); \
84 #define SAL_SET_VECTORS 0x01000000
85 #define SAL_GET_STATE_INFO 0x01000001
86 #define SAL_GET_STATE_INFO_SIZE 0x01000002
87 #define SAL_CLEAR_STATE_INFO 0x01000003
88 #define SAL_MC_RENDEZ 0x01000004
89 #define SAL_MC_SET_PARAMS 0x01000005
90 #define SAL_REGISTER_PHYSICAL_ADDR 0x01000006
92 #define SAL_CACHE_FLUSH 0x01000008
93 #define SAL_CACHE_INIT 0x01000009
94 #define SAL_PCI_CONFIG_READ 0x01000010
95 #define SAL_PCI_CONFIG_WRITE 0x01000011
96 #define SAL_FREQ_BASE 0x01000012
97 #define SAL_PHYSICAL_ID_INFO 0x01000013
99 #define SAL_UPDATE_PAL 0x01000020
101 struct ia64_sal_retval {
103 * A zero status value indicates call completed without error.
104 * A negative status value indicates reason of call failure.
105 * A positive status value indicates success but an
106 * informational value should be printed (e.g., "reboot for
107 * change to take effect").
115 typedef struct ia64_sal_retval (*ia64_sal_handler) (u64, ...);
118 SAL_FREQ_BASE_PLATFORM = 0,
119 SAL_FREQ_BASE_INTERVAL_TIMER = 1,
120 SAL_FREQ_BASE_REALTIME_CLOCK = 2
124 * The SAL system table is followed by a variable number of variable
125 * length descriptors. The structure of these descriptors follows
127 * The defininition follows SAL specs from July 2000
129 struct ia64_sal_systab {
130 u8 signature[4]; /* should be "SST_" */
131 u32 size; /* size of this table in bytes */
134 u16 entry_count; /* # of entries in variable portion */
141 /* oem_id & product_id: terminating NUL is missing if string is exactly 32 bytes long. */
143 u8 product_id[32]; /* ASCII product id */
147 enum sal_systab_entry_type {
148 SAL_DESC_ENTRY_POINT = 0,
150 SAL_DESC_PLATFORM_FEATURE = 2,
153 SAL_DESC_AP_WAKEUP = 5
165 #define SAL_DESC_SIZE(type) "\060\040\020\040\020\020"[(unsigned) type]
167 typedef struct ia64_sal_desc_entry_point {
174 }ia64_sal_desc_entry_point_t;
176 typedef struct ia64_sal_desc_memory {
178 u8 used_by_sal; /* needs to be mapped for SAL? */
179 u8 mem_attr; /* current memory attribute setting */
180 u8 access_rights; /* access rights set up by SAL */
181 u8 mem_attr_mask; /* mask of supported memory attributes */
183 u8 mem_type; /* memory type */
184 u8 mem_usage; /* memory usage */
185 u64 addr; /* physical address of memory */
186 u32 length; /* length (multiple of 4KB pages) */
189 } ia64_sal_desc_memory_t;
191 typedef struct ia64_sal_desc_platform_feature {
195 } ia64_sal_desc_platform_feature_t;
197 typedef struct ia64_sal_desc_tr {
199 u8 tr_type; /* 0 == instruction, 1 == data */
200 u8 regnum; /* translation register number */
202 u64 addr; /* virtual address of area covered */
203 u64 page_size; /* encoded page size */
205 } ia64_sal_desc_tr_t;
207 typedef struct ia64_sal_desc_ptc {
210 u32 num_domains; /* # of coherence domains */
211 u64 domain_info; /* physical address of domain info table */
212 } ia64_sal_desc_ptc_t;
214 typedef struct ia64_sal_ptc_domain_info {
215 u64 proc_count; /* number of processors in domain */
216 u64 proc_list; /* physical address of LID array */
217 } ia64_sal_ptc_domain_info_t;
219 typedef struct ia64_sal_ptc_domain_proc_entry {
220 u64 id : 8; /* id of processor */
221 u64 eid : 8; /* eid of processor */
222 } ia64_sal_ptc_domain_proc_entry_t;
225 #define IA64_SAL_AP_EXTERNAL_INT 0
227 typedef struct ia64_sal_desc_ap_wakeup {
229 u8 mechanism; /* 0 == external interrupt */
231 u64 vector; /* interrupt vector in range 0x10-0xff */
232 } ia64_sal_desc_ap_wakeup_t ;
234 extern ia64_sal_handler ia64_sal;
235 extern struct ia64_sal_desc_ptc *ia64_ptc_domain_info;
237 extern unsigned short sal_revision; /* supported SAL spec revision */
238 extern unsigned short sal_version; /* SAL version; OEM dependent */
239 #define SAL_VERSION_CODE(major, minor) ((BIN2BCD(major) << 8) | BIN2BCD(minor))
241 extern const char *ia64_sal_strerror (long status);
242 extern void ia64_sal_init (struct ia64_sal_systab *sal_systab);
244 /* SAL information type encodings */
246 SAL_INFO_TYPE_MCA = 0, /* Machine check abort information */
247 SAL_INFO_TYPE_INIT = 1, /* Init information */
248 SAL_INFO_TYPE_CMC = 2, /* Corrected machine check information */
249 SAL_INFO_TYPE_CPE = 3 /* Corrected platform error information */
252 /* Encodings for machine check parameter types */
254 SAL_MC_PARAM_RENDEZ_INT = 1, /* Rendezvous interrupt */
255 SAL_MC_PARAM_RENDEZ_WAKEUP = 2, /* Wakeup */
256 SAL_MC_PARAM_CPE_INT = 3 /* Corrected Platform Error Int */
259 /* Encodings for rendezvous mechanisms */
261 SAL_MC_PARAM_MECHANISM_INT = 1, /* Use interrupt */
262 SAL_MC_PARAM_MECHANISM_MEM = 2 /* Use memory synchronization variable*/
265 /* Encodings for vectors which can be registered by the OS with SAL */
267 SAL_VECTOR_OS_MCA = 0,
268 SAL_VECTOR_OS_INIT = 1,
269 SAL_VECTOR_OS_BOOT_RENDEZ = 2
272 /* Encodings for mca_opt parameter sent to SAL_MC_SET_PARAMS */
273 #define SAL_MC_PARAM_RZ_ALWAYS 0x1
274 #define SAL_MC_PARAM_BINIT_ESCALATE 0x10
277 * Definition of the SAL Error Log from the SAL spec
280 /* SAL Error Record Section GUID Definitions */
281 #define SAL_PROC_DEV_ERR_SECT_GUID \
282 EFI_GUID(0xe429faf1, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
283 #define SAL_PLAT_MEM_DEV_ERR_SECT_GUID \
284 EFI_GUID(0xe429faf2, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
285 #define SAL_PLAT_SEL_DEV_ERR_SECT_GUID \
286 EFI_GUID(0xe429faf3, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
287 #define SAL_PLAT_PCI_BUS_ERR_SECT_GUID \
288 EFI_GUID(0xe429faf4, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
289 #define SAL_PLAT_SMBIOS_DEV_ERR_SECT_GUID \
290 EFI_GUID(0xe429faf5, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
291 #define SAL_PLAT_PCI_COMP_ERR_SECT_GUID \
292 EFI_GUID(0xe429faf6, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
293 #define SAL_PLAT_SPECIFIC_ERR_SECT_GUID \
294 EFI_GUID(0xe429faf7, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
295 #define SAL_PLAT_HOST_CTLR_ERR_SECT_GUID \
296 EFI_GUID(0xe429faf8, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
297 #define SAL_PLAT_BUS_ERR_SECT_GUID \
298 EFI_GUID(0xe429faf9, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
300 #define MAX_CACHE_ERRORS 6
301 #define MAX_TLB_ERRORS 6
302 #define MAX_BUS_ERRORS 1
304 /* Definition of version according to SAL spec for logging purposes */
305 typedef struct sal_log_revision {
306 u8 minor; /* BCD (0..99) */
307 u8 major; /* BCD (0..99) */
308 } sal_log_revision_t;
310 /* Definition of timestamp according to SAL spec for logging purposes */
311 typedef struct sal_log_timestamp {
312 u8 slh_second; /* Second (0..59) */
313 u8 slh_minute; /* Minute (0..59) */
314 u8 slh_hour; /* Hour (0..23) */
316 u8 slh_day; /* Day (1..31) */
317 u8 slh_month; /* Month (1..12) */
318 u8 slh_year; /* Year (00..99) */
319 u8 slh_century; /* Century (19, 20, 21, ...) */
320 } sal_log_timestamp_t;
322 /* Definition of log record header structures */
323 typedef struct sal_log_record_header {
324 u64 id; /* Unique monotonically increasing ID */
325 sal_log_revision_t revision; /* Major and Minor revision of header */
326 u8 severity; /* Error Severity */
327 u8 validation_bits; /* 0: platform_guid, 1: !timestamp */
328 u32 len; /* Length of this error log in bytes */
329 sal_log_timestamp_t timestamp; /* Timestamp */
330 efi_guid_t platform_guid; /* Unique OEM Platform ID */
331 } sal_log_record_header_t;
333 #define sal_log_severity_recoverable 0
334 #define sal_log_severity_fatal 1
335 #define sal_log_severity_corrected 2
337 /* Definition of log section header structures */
338 typedef struct sal_log_sec_header {
339 efi_guid_t guid; /* Unique Section ID */
340 sal_log_revision_t revision; /* Major and Minor revision of Section */
342 u32 len; /* Section length */
343 } sal_log_section_hdr_t;
345 typedef struct sal_log_mod_error_info {
348 requestor_identifier : 1,
349 responder_identifier : 1,
350 target_identifier : 1,
355 u64 requestor_identifier;
356 u64 responder_identifier;
357 u64 target_identifier;
359 } sal_log_mod_error_info_t;
361 typedef struct sal_processor_static_info {
371 pal_min_state_area_t min_state_area;
376 struct ia64_fpreg __attribute__ ((packed)) fr[128];
377 } sal_processor_static_info_t;
379 struct sal_cpuid_info {
384 typedef struct sal_log_processor_info {
385 sal_log_section_hdr_t header;
387 u64 proc_error_map : 1,
388 proc_state_param : 1,
390 psi_static_struct : 1,
394 num_reg_file_check : 4,
400 u64 proc_state_parameter;
403 * The rest of this structure consists of variable-length arrays, which can't be
406 sal_log_mod_error_info_t info[0];
408 * This is what the rest looked like if C supported variable-length arrays:
410 * sal_log_mod_error_info_t cache_check_info[.valid.num_cache_check];
411 * sal_log_mod_error_info_t tlb_check_info[.valid.num_tlb_check];
412 * sal_log_mod_error_info_t bus_check_info[.valid.num_bus_check];
413 * sal_log_mod_error_info_t reg_file_check_info[.valid.num_reg_file_check];
414 * sal_log_mod_error_info_t ms_check_info[.valid.num_ms_check];
415 * struct sal_cpuid_info cpuid_info;
416 * sal_processor_static_info_t processor_static_info;
418 } sal_log_processor_info_t;
420 /* Given a sal_log_processor_info_t pointer, return a pointer to the processor_static_info: */
421 #define SAL_LPI_PSI_INFO(l) \
422 ({ sal_log_processor_info_t *_l = (l); \
423 ((sal_processor_static_info_t *) \
424 ((char *) _l->info + ((_l->valid.num_cache_check + _l->valid.num_tlb_check \
425 + _l->valid.num_bus_check + _l->valid.num_reg_file_check \
426 + _l->valid.num_ms_check) * sizeof(sal_log_mod_error_info_t) \
427 + sizeof(struct sal_cpuid_info)))); \
430 /* platform error log structures */
432 typedef struct sal_log_mem_dev_err_info {
433 sal_log_section_hdr_t header;
435 u64 error_status : 1,
470 u8 oem_data[1]; /* Variable length data */
471 } sal_log_mem_dev_err_info_t;
473 typedef struct sal_log_sel_dev_err_info {
474 sal_log_section_hdr_t header;
499 } sal_log_sel_dev_err_info_t;
501 typedef struct sal_log_pci_bus_err_info {
502 sal_log_section_hdr_t header;
526 u8 oem_data[1]; /* Variable length data */
527 } sal_log_pci_bus_err_info_t;
529 typedef struct sal_log_smbios_dev_err_info {
530 sal_log_section_hdr_t header;
541 u8 data[1]; /* data of variable length, length == slsmb_length */
542 } sal_log_smbios_dev_err_info_t;
544 typedef struct sal_log_pci_comp_err_info {
545 sal_log_section_hdr_t header;
568 u64 reg_data_pairs[1];
570 * array of address/data register pairs is num_mem_regs + num_io_regs elements
571 * long. Each array element consists of a u64 address followed by a u64 data
572 * value. The oem_data array immediately follows the reg_data_pairs array
574 u8 oem_data[1]; /* Variable length data */
575 } sal_log_pci_comp_err_info_t;
577 typedef struct sal_log_plat_specific_err_info {
578 sal_log_section_hdr_t header;
587 u8 oem_data[1]; /* platform specific variable length data */
588 } sal_log_plat_specific_err_info_t;
590 typedef struct sal_log_host_ctlr_err_info {
591 sal_log_section_hdr_t header;
606 u8 oem_data[1]; /* Variable length OEM data */
607 } sal_log_host_ctlr_err_info_t;
609 typedef struct sal_log_plat_bus_err_info {
610 sal_log_section_hdr_t header;
625 u8 oem_data[1]; /* Variable length OEM data */
626 } sal_log_plat_bus_err_info_t;
628 /* Overall platform error section structure */
629 typedef union sal_log_platform_err_info {
630 sal_log_mem_dev_err_info_t mem_dev_err;
631 sal_log_sel_dev_err_info_t sel_dev_err;
632 sal_log_pci_bus_err_info_t pci_bus_err;
633 sal_log_smbios_dev_err_info_t smbios_dev_err;
634 sal_log_pci_comp_err_info_t pci_comp_err;
635 sal_log_plat_specific_err_info_t plat_specific_err;
636 sal_log_host_ctlr_err_info_t host_ctlr_err;
637 sal_log_plat_bus_err_info_t plat_bus_err;
638 } sal_log_platform_err_info_t;
640 /* SAL log over-all, multi-section error record structure (processor+platform) */
641 typedef struct err_rec {
642 sal_log_record_header_t sal_elog_header;
643 sal_log_processor_info_t proc_err;
644 sal_log_platform_err_info_t plat_err;
645 u8 oem_data_pad[1024];
649 * Now define a couple of inline functions for improved type checking
653 ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
654 unsigned long *drift_info)
656 struct ia64_sal_retval isrv;
658 SAL_CALL(isrv, SAL_FREQ_BASE, which, 0, 0, 0, 0, 0, 0);
659 *ticks_per_second = isrv.v0;
660 *drift_info = isrv.v1;
664 extern s64 ia64_sal_cache_flush (u64 cache_type);
665 extern void __init check_sal_cache_flush (void);
667 /* Initialize all the processor and platform level instruction and data caches */
669 ia64_sal_cache_init (void)
671 struct ia64_sal_retval isrv;
672 SAL_CALL(isrv, SAL_CACHE_INIT, 0, 0, 0, 0, 0, 0, 0);
677 * Clear the processor and platform information logged by SAL with respect to the machine
678 * state at the time of MCA's, INITs, CMCs, or CPEs.
681 ia64_sal_clear_state_info (u64 sal_info_type)
683 struct ia64_sal_retval isrv;
684 SAL_CALL_REENTRANT(isrv, SAL_CLEAR_STATE_INFO, sal_info_type, 0,
690 /* Get the processor and platform information logged by SAL with respect to the machine
691 * state at the time of the MCAs, INITs, CMCs, or CPEs.
694 ia64_sal_get_state_info (u64 sal_info_type, u64 *sal_info)
696 struct ia64_sal_retval isrv;
697 SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO, sal_info_type, 0,
698 sal_info, 0, 0, 0, 0);
706 * Get the maximum size of the information logged by SAL with respect to the machine state
707 * at the time of MCAs, INITs, CMCs, or CPEs.
710 ia64_sal_get_state_info_size (u64 sal_info_type)
712 struct ia64_sal_retval isrv;
713 SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO_SIZE, sal_info_type, 0,
721 * Causes the processor to go into a spin loop within SAL where SAL awaits a wakeup from
722 * the monarch processor. Must not lock, because it will not return on any cpu until the
723 * monarch processor sends a wake up.
726 ia64_sal_mc_rendez (void)
728 struct ia64_sal_retval isrv;
729 SAL_CALL_NOLOCK(isrv, SAL_MC_RENDEZ, 0, 0, 0, 0, 0, 0, 0);
734 * Allow the OS to specify the interrupt number to be used by SAL to interrupt OS during
735 * the machine check rendezvous sequence as well as the mechanism to wake up the
736 * non-monarch processor at the end of machine check processing.
737 * Returns the complete ia64_sal_retval because some calls return more than just a status
740 static inline struct ia64_sal_retval
741 ia64_sal_mc_set_params (u64 param_type, u64 i_or_m, u64 i_or_m_val, u64 timeout, u64 rz_always)
743 struct ia64_sal_retval isrv;
744 SAL_CALL(isrv, SAL_MC_SET_PARAMS, param_type, i_or_m, i_or_m_val,
745 timeout, rz_always, 0, 0);
749 /* Read from PCI configuration space */
751 ia64_sal_pci_config_read (u64 pci_config_addr, int type, u64 size, u64 *value)
753 struct ia64_sal_retval isrv;
754 SAL_CALL(isrv, SAL_PCI_CONFIG_READ, pci_config_addr, size, type, 0, 0, 0, 0);
760 /* Write to PCI configuration space */
762 ia64_sal_pci_config_write (u64 pci_config_addr, int type, u64 size, u64 value)
764 struct ia64_sal_retval isrv;
765 SAL_CALL(isrv, SAL_PCI_CONFIG_WRITE, pci_config_addr, size, value,
771 * Register physical addresses of locations needed by SAL when SAL procedures are invoked
775 ia64_sal_register_physical_addr (u64 phys_entry, u64 phys_addr)
777 struct ia64_sal_retval isrv;
778 SAL_CALL(isrv, SAL_REGISTER_PHYSICAL_ADDR, phys_entry, phys_addr,
784 * Register software dependent code locations within SAL. These locations are handlers or
785 * entry points where SAL will pass control for the specified event. These event handlers
786 * are for the bott rendezvous, MCAs and INIT scenarios.
789 ia64_sal_set_vectors (u64 vector_type,
790 u64 handler_addr1, u64 gp1, u64 handler_len1,
791 u64 handler_addr2, u64 gp2, u64 handler_len2)
793 struct ia64_sal_retval isrv;
794 SAL_CALL(isrv, SAL_SET_VECTORS, vector_type,
795 handler_addr1, gp1, handler_len1,
796 handler_addr2, gp2, handler_len2);
801 /* Update the contents of PAL block in the non-volatile storage device */
803 ia64_sal_update_pal (u64 param_buf, u64 scratch_buf, u64 scratch_buf_size,
804 u64 *error_code, u64 *scratch_buf_size_needed)
806 struct ia64_sal_retval isrv;
807 SAL_CALL(isrv, SAL_UPDATE_PAL, param_buf, scratch_buf, scratch_buf_size,
810 *error_code = isrv.v0;
811 if (scratch_buf_size_needed)
812 *scratch_buf_size_needed = isrv.v1;
816 /* Get physical processor die mapping in the platform. */
818 ia64_sal_physical_id_info(u16 *splid)
820 struct ia64_sal_retval isrv;
821 SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0);
827 extern unsigned long sal_platform_features;
829 extern int (*salinfo_platform_oemdata)(const u8 *, u8 **, u64 *);
831 struct sal_ret_values {
832 long r8; long r9; long r10; long r11;
835 #define IA64_SAL_OEMFUNC_MIN 0x02000000
836 #define IA64_SAL_OEMFUNC_MAX 0x03ffffff
838 extern int ia64_sal_oemcall(struct ia64_sal_retval *, u64, u64, u64, u64, u64,
840 extern int ia64_sal_oemcall_nolock(struct ia64_sal_retval *, u64, u64, u64,
841 u64, u64, u64, u64, u64);
842 extern int ia64_sal_oemcall_reentrant(struct ia64_sal_retval *, u64, u64, u64,
843 u64, u64, u64, u64, u64);
844 #ifdef CONFIG_HOTPLUG_CPU
846 * System Abstraction Layer Specification
847 * Section 3.2.5.1: OS_BOOT_RENDEZ to SAL return State.
848 * Note: region regs are stored first in head.S _start. Hence they must
851 struct sal_to_os_boot {
852 u64 rr[8]; /* Region Registers */
854 * return addr into SAL boot rendez routine */
855 u64 gr1; /* SAL:GP */
856 u64 gr12; /* SAL:SP */
857 u64 gr13; /* SAL: Task Pointer */
863 u64 dcr; /* Default Control Register */
871 u64 pr; /* Predicate registers */
872 u64 lc; /* Loop Count */
873 struct ia64_fpreg fp[20];
877 * Global array allocated for NR_CPUS at boot time
879 extern struct sal_to_os_boot sal_boot_rendez_state[NR_CPUS];
881 extern void ia64_jump_to_sal(struct sal_to_os_boot *);
884 extern void ia64_sal_handler_init(void *entry_point, void *gpval);
886 #endif /* __ASSEMBLY__ */
888 #endif /* _ASM_IA64_SAL_H */