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linux/include/asm-ia64/sal.h
Bjorn Helgaas edbe7075d1 [IA64] abstract SAL_CALL wrapper to allow other firmware entry points 
SAL_CALL() always calls through the ia64_sal function pointer.  I am adding
new functionality that needs the same conventions as SAL_CALL (FP regs
saved/restored, sal_lock acquired, etc), but doesn't use the ia64_sal
function pointer.

This patch pulls the body of SAL_CALL out into a new "IA64_FW_CALL" that
takes care of these calling conventions, but allows the caller to specify
either ia64_sal or some other firmware entry point.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-10-12 15:11:22 -07:00

889 lines
25 KiB
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#ifndef _ASM_IA64_SAL_H
#define _ASM_IA64_SAL_H
/*
* System Abstraction Layer definitions.
*
* This is based on version 2.5 of the manual "IA-64 System
* Abstraction Layer".
*
* Copyright (C) 2001 Intel
* Copyright (C) 2002 Jenna Hall <jenna.s.hall@intel.com>
* Copyright (C) 2001 Fred Lewis <frederick.v.lewis@intel.com>
* Copyright (C) 1998, 1999, 2001, 2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 1999 Srinivasa Prasad Thirumalachar <sprasad@sprasad.engr.sgi.com>
*
* 02/01/04 J. Hall Updated Error Record Structures to conform to July 2001
* revision of the SAL spec.
* 01/01/03 fvlewis Updated Error Record Structures to conform with Nov. 2000
* revision of the SAL spec.
* 99/09/29 davidm Updated for SAL 2.6.
* 00/03/29 cfleck Updated SAL Error Logging info for processor (SAL 2.6)
* (plus examples of platform error info structures from smariset @ Intel)
*/
#define IA64_SAL_PLATFORM_FEATURE_BUS_LOCK_BIT 0
#define IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT_BIT 1
#define IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT_BIT 2
#define IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT_BIT 3
#define IA64_SAL_PLATFORM_FEATURE_BUS_LOCK (1<<IA64_SAL_PLATFORM_FEATURE_BUS_LOCK_BIT)
#define IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT (1<<IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT_BIT)
#define IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT (1<<IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT_BIT)
#define IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT (1<<IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT_BIT)
#ifndef __ASSEMBLY__
#include <linux/bcd.h>
#include <linux/spinlock.h>
#include <linux/efi.h>
#include <asm/pal.h>
#include <asm/system.h>
#include <asm/fpu.h>
extern spinlock_t sal_lock;
/* SAL spec _requires_ eight args for each call. */
#define __IA64_FW_CALL(entry,result,a0,a1,a2,a3,a4,a5,a6,a7) \
result = (*entry)(a0,a1,a2,a3,a4,a5,a6,a7)
# define IA64_FW_CALL(entry,result,args...) do { \
unsigned long __ia64_sc_flags; \
struct ia64_fpreg __ia64_sc_fr[6]; \
ia64_save_scratch_fpregs(__ia64_sc_fr); \
spin_lock_irqsave(&sal_lock, __ia64_sc_flags); \
__IA64_FW_CALL(entry, result, args); \
spin_unlock_irqrestore(&sal_lock, __ia64_sc_flags); \
ia64_load_scratch_fpregs(__ia64_sc_fr); \
} while (0)
# define SAL_CALL(result,args...) \
IA64_FW_CALL(ia64_sal, result, args);
# define SAL_CALL_NOLOCK(result,args...) do { \
unsigned long __ia64_scn_flags; \
struct ia64_fpreg __ia64_scn_fr[6]; \
ia64_save_scratch_fpregs(__ia64_scn_fr); \
local_irq_save(__ia64_scn_flags); \
__IA64_FW_CALL(ia64_sal, result, args); \
local_irq_restore(__ia64_scn_flags); \
ia64_load_scratch_fpregs(__ia64_scn_fr); \
} while (0)
# define SAL_CALL_REENTRANT(result,args...) do { \
struct ia64_fpreg __ia64_scs_fr[6]; \
ia64_save_scratch_fpregs(__ia64_scs_fr); \
preempt_disable(); \
__IA64_FW_CALL(ia64_sal, result, args); \
preempt_enable(); \
ia64_load_scratch_fpregs(__ia64_scs_fr); \
} while (0)
#define SAL_SET_VECTORS 0x01000000
#define SAL_GET_STATE_INFO 0x01000001
#define SAL_GET_STATE_INFO_SIZE 0x01000002
#define SAL_CLEAR_STATE_INFO 0x01000003
#define SAL_MC_RENDEZ 0x01000004
#define SAL_MC_SET_PARAMS 0x01000005
#define SAL_REGISTER_PHYSICAL_ADDR 0x01000006
#define SAL_CACHE_FLUSH 0x01000008
#define SAL_CACHE_INIT 0x01000009
#define SAL_PCI_CONFIG_READ 0x01000010
#define SAL_PCI_CONFIG_WRITE 0x01000011
#define SAL_FREQ_BASE 0x01000012
#define SAL_PHYSICAL_ID_INFO 0x01000013
#define SAL_UPDATE_PAL 0x01000020
struct ia64_sal_retval {
/*
* A zero status value indicates call completed without error.
* A negative status value indicates reason of call failure.
* A positive status value indicates success but an
* informational value should be printed (e.g., "reboot for
* change to take effect").
*/
s64 status;
u64 v0;
u64 v1;
u64 v2;
};
typedef struct ia64_sal_retval (*ia64_sal_handler) (u64, ...);
enum {
SAL_FREQ_BASE_PLATFORM = 0,
SAL_FREQ_BASE_INTERVAL_TIMER = 1,
SAL_FREQ_BASE_REALTIME_CLOCK = 2
};
/*
* The SAL system table is followed by a variable number of variable
* length descriptors. The structure of these descriptors follows
* below.
* The defininition follows SAL specs from July 2000
*/
struct ia64_sal_systab {
u8 signature[4]; /* should be "SST_" */
u32 size; /* size of this table in bytes */
u8 sal_rev_minor;
u8 sal_rev_major;
u16 entry_count; /* # of entries in variable portion */
u8 checksum;
u8 reserved1[7];
u8 sal_a_rev_minor;
u8 sal_a_rev_major;
u8 sal_b_rev_minor;
u8 sal_b_rev_major;
/* oem_id & product_id: terminating NUL is missing if string is exactly 32 bytes long. */
u8 oem_id[32];
u8 product_id[32]; /* ASCII product id */
u8 reserved2[8];
};
enum sal_systab_entry_type {
SAL_DESC_ENTRY_POINT = 0,
SAL_DESC_MEMORY = 1,
SAL_DESC_PLATFORM_FEATURE = 2,
SAL_DESC_TR = 3,
SAL_DESC_PTC = 4,
SAL_DESC_AP_WAKEUP = 5
};
/*
* Entry type: Size:
* 0 48
* 1 32
* 2 16
* 3 32
* 4 16
* 5 16
*/
#define SAL_DESC_SIZE(type) "\060\040\020\040\020\020"[(unsigned) type]
typedef struct ia64_sal_desc_entry_point {
u8 type;
u8 reserved1[7];
u64 pal_proc;
u64 sal_proc;
u64 gp;
u8 reserved2[16];
}ia64_sal_desc_entry_point_t;
typedef struct ia64_sal_desc_memory {
u8 type;
u8 used_by_sal; /* needs to be mapped for SAL? */
u8 mem_attr; /* current memory attribute setting */
u8 access_rights; /* access rights set up by SAL */
u8 mem_attr_mask; /* mask of supported memory attributes */
u8 reserved1;
u8 mem_type; /* memory type */
u8 mem_usage; /* memory usage */
u64 addr; /* physical address of memory */
u32 length; /* length (multiple of 4KB pages) */
u32 reserved2;
u8 oem_reserved[8];
} ia64_sal_desc_memory_t;
typedef struct ia64_sal_desc_platform_feature {
u8 type;
u8 feature_mask;
u8 reserved1[14];
} ia64_sal_desc_platform_feature_t;
typedef struct ia64_sal_desc_tr {
u8 type;
u8 tr_type; /* 0 == instruction, 1 == data */
u8 regnum; /* translation register number */
u8 reserved1[5];
u64 addr; /* virtual address of area covered */
u64 page_size; /* encoded page size */
u8 reserved2[8];
} ia64_sal_desc_tr_t;
typedef struct ia64_sal_desc_ptc {
u8 type;
u8 reserved1[3];
u32 num_domains; /* # of coherence domains */
u64 domain_info; /* physical address of domain info table */
} ia64_sal_desc_ptc_t;
typedef struct ia64_sal_ptc_domain_info {
u64 proc_count; /* number of processors in domain */
u64 proc_list; /* physical address of LID array */
} ia64_sal_ptc_domain_info_t;
typedef struct ia64_sal_ptc_domain_proc_entry {
u64 id : 8; /* id of processor */
u64 eid : 8; /* eid of processor */
} ia64_sal_ptc_domain_proc_entry_t;
#define IA64_SAL_AP_EXTERNAL_INT 0
typedef struct ia64_sal_desc_ap_wakeup {
u8 type;
u8 mechanism; /* 0 == external interrupt */
u8 reserved1[6];
u64 vector; /* interrupt vector in range 0x10-0xff */
} ia64_sal_desc_ap_wakeup_t ;
extern ia64_sal_handler ia64_sal;
extern struct ia64_sal_desc_ptc *ia64_ptc_domain_info;
extern unsigned short sal_revision; /* supported SAL spec revision */
extern unsigned short sal_version; /* SAL version; OEM dependent */
#define SAL_VERSION_CODE(major, minor) ((BIN2BCD(major) << 8) | BIN2BCD(minor))
extern const char *ia64_sal_strerror (long status);
extern void ia64_sal_init (struct ia64_sal_systab *sal_systab);
/* SAL information type encodings */
enum {
SAL_INFO_TYPE_MCA = 0, /* Machine check abort information */
SAL_INFO_TYPE_INIT = 1, /* Init information */
SAL_INFO_TYPE_CMC = 2, /* Corrected machine check information */
SAL_INFO_TYPE_CPE = 3 /* Corrected platform error information */
};
/* Encodings for machine check parameter types */
enum {
SAL_MC_PARAM_RENDEZ_INT = 1, /* Rendezvous interrupt */
SAL_MC_PARAM_RENDEZ_WAKEUP = 2, /* Wakeup */
SAL_MC_PARAM_CPE_INT = 3 /* Corrected Platform Error Int */
};
/* Encodings for rendezvous mechanisms */
enum {
SAL_MC_PARAM_MECHANISM_INT = 1, /* Use interrupt */
SAL_MC_PARAM_MECHANISM_MEM = 2 /* Use memory synchronization variable*/
};
/* Encodings for vectors which can be registered by the OS with SAL */
enum {
SAL_VECTOR_OS_MCA = 0,
SAL_VECTOR_OS_INIT = 1,
SAL_VECTOR_OS_BOOT_RENDEZ = 2
};
/* Encodings for mca_opt parameter sent to SAL_MC_SET_PARAMS */
#define SAL_MC_PARAM_RZ_ALWAYS 0x1
#define SAL_MC_PARAM_BINIT_ESCALATE 0x10
/*
* Definition of the SAL Error Log from the SAL spec
*/
/* SAL Error Record Section GUID Definitions */
#define SAL_PROC_DEV_ERR_SECT_GUID \
EFI_GUID(0xe429faf1, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define SAL_PLAT_MEM_DEV_ERR_SECT_GUID \
EFI_GUID(0xe429faf2, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define SAL_PLAT_SEL_DEV_ERR_SECT_GUID \
EFI_GUID(0xe429faf3, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define SAL_PLAT_PCI_BUS_ERR_SECT_GUID \
EFI_GUID(0xe429faf4, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define SAL_PLAT_SMBIOS_DEV_ERR_SECT_GUID \
EFI_GUID(0xe429faf5, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define SAL_PLAT_PCI_COMP_ERR_SECT_GUID \
EFI_GUID(0xe429faf6, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define SAL_PLAT_SPECIFIC_ERR_SECT_GUID \
EFI_GUID(0xe429faf7, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define SAL_PLAT_HOST_CTLR_ERR_SECT_GUID \
EFI_GUID(0xe429faf8, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define SAL_PLAT_BUS_ERR_SECT_GUID \
EFI_GUID(0xe429faf9, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define MAX_CACHE_ERRORS 6
#define MAX_TLB_ERRORS 6
#define MAX_BUS_ERRORS 1
/* Definition of version according to SAL spec for logging purposes */
typedef struct sal_log_revision {
u8 minor; /* BCD (0..99) */
u8 major; /* BCD (0..99) */
} sal_log_revision_t;
/* Definition of timestamp according to SAL spec for logging purposes */
typedef struct sal_log_timestamp {
u8 slh_second; /* Second (0..59) */
u8 slh_minute; /* Minute (0..59) */
u8 slh_hour; /* Hour (0..23) */
u8 slh_reserved;
u8 slh_day; /* Day (1..31) */
u8 slh_month; /* Month (1..12) */
u8 slh_year; /* Year (00..99) */
u8 slh_century; /* Century (19, 20, 21, ...) */
} sal_log_timestamp_t;
/* Definition of log record header structures */
typedef struct sal_log_record_header {
u64 id; /* Unique monotonically increasing ID */
sal_log_revision_t revision; /* Major and Minor revision of header */
u8 severity; /* Error Severity */
u8 validation_bits; /* 0: platform_guid, 1: !timestamp */
u32 len; /* Length of this error log in bytes */
sal_log_timestamp_t timestamp; /* Timestamp */
efi_guid_t platform_guid; /* Unique OEM Platform ID */
} sal_log_record_header_t;
#define sal_log_severity_recoverable 0
#define sal_log_severity_fatal 1
#define sal_log_severity_corrected 2
/* Definition of log section header structures */
typedef struct sal_log_sec_header {
efi_guid_t guid; /* Unique Section ID */
sal_log_revision_t revision; /* Major and Minor revision of Section */
u16 reserved;
u32 len; /* Section length */
} sal_log_section_hdr_t;
typedef struct sal_log_mod_error_info {
struct {
u64 check_info : 1,
requestor_identifier : 1,
responder_identifier : 1,
target_identifier : 1,
precise_ip : 1,
reserved : 59;
} valid;
u64 check_info;
u64 requestor_identifier;
u64 responder_identifier;
u64 target_identifier;
u64 precise_ip;
} sal_log_mod_error_info_t;
typedef struct sal_processor_static_info {
struct {
u64 minstate : 1,
br : 1,
cr : 1,
ar : 1,
rr : 1,
fr : 1,
reserved : 58;
} valid;
pal_min_state_area_t min_state_area;
u64 br[8];
u64 cr[128];
u64 ar[128];
u64 rr[8];
struct ia64_fpreg __attribute__ ((packed)) fr[128];
} sal_processor_static_info_t;
struct sal_cpuid_info {
u64 regs[5];
u64 reserved;
};
typedef struct sal_log_processor_info {
sal_log_section_hdr_t header;
struct {
u64 proc_error_map : 1,
proc_state_param : 1,
proc_cr_lid : 1,
psi_static_struct : 1,
num_cache_check : 4,
num_tlb_check : 4,
num_bus_check : 4,
num_reg_file_check : 4,
num_ms_check : 4,
cpuid_info : 1,
reserved1 : 39;
} valid;
u64 proc_error_map;
u64 proc_state_parameter;
u64 proc_cr_lid;
/*
* The rest of this structure consists of variable-length arrays, which can't be
* expressed in C.
*/
sal_log_mod_error_info_t info[0];
/*
* This is what the rest looked like if C supported variable-length arrays:
*
* sal_log_mod_error_info_t cache_check_info[.valid.num_cache_check];
* sal_log_mod_error_info_t tlb_check_info[.valid.num_tlb_check];
* sal_log_mod_error_info_t bus_check_info[.valid.num_bus_check];
* sal_log_mod_error_info_t reg_file_check_info[.valid.num_reg_file_check];
* sal_log_mod_error_info_t ms_check_info[.valid.num_ms_check];
* struct sal_cpuid_info cpuid_info;
* sal_processor_static_info_t processor_static_info;
*/
} sal_log_processor_info_t;
/* Given a sal_log_processor_info_t pointer, return a pointer to the processor_static_info: */
#define SAL_LPI_PSI_INFO(l) \
({ sal_log_processor_info_t *_l = (l); \
((sal_processor_static_info_t *) \
((char *) _l->info + ((_l->valid.num_cache_check + _l->valid.num_tlb_check \
+ _l->valid.num_bus_check + _l->valid.num_reg_file_check \
+ _l->valid.num_ms_check) * sizeof(sal_log_mod_error_info_t) \
+ sizeof(struct sal_cpuid_info)))); \
})
/* platform error log structures */
typedef struct sal_log_mem_dev_err_info {
sal_log_section_hdr_t header;
struct {
u64 error_status : 1,
physical_addr : 1,
addr_mask : 1,
node : 1,
card : 1,
module : 1,
bank : 1,
device : 1,
row : 1,
column : 1,
bit_position : 1,
requestor_id : 1,
responder_id : 1,
target_id : 1,
bus_spec_data : 1,
oem_id : 1,
oem_data : 1,
reserved : 47;
} valid;
u64 error_status;
u64 physical_addr;
u64 addr_mask;
u16 node;
u16 card;
u16 module;
u16 bank;
u16 device;
u16 row;
u16 column;
u16 bit_position;
u64 requestor_id;
u64 responder_id;
u64 target_id;
u64 bus_spec_data;
u8 oem_id[16];
u8 oem_data[1]; /* Variable length data */
} sal_log_mem_dev_err_info_t;
typedef struct sal_log_sel_dev_err_info {
sal_log_section_hdr_t header;
struct {
u64 record_id : 1,
record_type : 1,
generator_id : 1,
evm_rev : 1,
sensor_type : 1,
sensor_num : 1,
event_dir : 1,
event_data1 : 1,
event_data2 : 1,
event_data3 : 1,
reserved : 54;
} valid;
u16 record_id;
u8 record_type;
u8 timestamp[4];
u16 generator_id;
u8 evm_rev;
u8 sensor_type;
u8 sensor_num;
u8 event_dir;
u8 event_data1;
u8 event_data2;
u8 event_data3;
} sal_log_sel_dev_err_info_t;
typedef struct sal_log_pci_bus_err_info {
sal_log_section_hdr_t header;
struct {
u64 err_status : 1,
err_type : 1,
bus_id : 1,
bus_address : 1,
bus_data : 1,
bus_cmd : 1,
requestor_id : 1,
responder_id : 1,
target_id : 1,
oem_data : 1,
reserved : 54;
} valid;
u64 err_status;
u16 err_type;
u16 bus_id;
u32 reserved;
u64 bus_address;
u64 bus_data;
u64 bus_cmd;
u64 requestor_id;
u64 responder_id;
u64 target_id;
u8 oem_data[1]; /* Variable length data */
} sal_log_pci_bus_err_info_t;
typedef struct sal_log_smbios_dev_err_info {
sal_log_section_hdr_t header;
struct {
u64 event_type : 1,
length : 1,
time_stamp : 1,
data : 1,
reserved1 : 60;
} valid;
u8 event_type;
u8 length;
u8 time_stamp[6];
u8 data[1]; /* data of variable length, length == slsmb_length */
} sal_log_smbios_dev_err_info_t;
typedef struct sal_log_pci_comp_err_info {
sal_log_section_hdr_t header;
struct {
u64 err_status : 1,
comp_info : 1,
num_mem_regs : 1,
num_io_regs : 1,
reg_data_pairs : 1,
oem_data : 1,
reserved : 58;
} valid;
u64 err_status;
struct {
u16 vendor_id;
u16 device_id;
u8 class_code[3];
u8 func_num;
u8 dev_num;
u8 bus_num;
u8 seg_num;
u8 reserved[5];
} comp_info;
u32 num_mem_regs;
u32 num_io_regs;
u64 reg_data_pairs[1];
/*
* array of address/data register pairs is num_mem_regs + num_io_regs elements
* long. Each array element consists of a u64 address followed by a u64 data
* value. The oem_data array immediately follows the reg_data_pairs array
*/
u8 oem_data[1]; /* Variable length data */
} sal_log_pci_comp_err_info_t;
typedef struct sal_log_plat_specific_err_info {
sal_log_section_hdr_t header;
struct {
u64 err_status : 1,
guid : 1,
oem_data : 1,
reserved : 61;
} valid;
u64 err_status;
efi_guid_t guid;
u8 oem_data[1]; /* platform specific variable length data */
} sal_log_plat_specific_err_info_t;
typedef struct sal_log_host_ctlr_err_info {
sal_log_section_hdr_t header;
struct {
u64 err_status : 1,
requestor_id : 1,
responder_id : 1,
target_id : 1,
bus_spec_data : 1,
oem_data : 1,
reserved : 58;
} valid;
u64 err_status;
u64 requestor_id;
u64 responder_id;
u64 target_id;
u64 bus_spec_data;
u8 oem_data[1]; /* Variable length OEM data */
} sal_log_host_ctlr_err_info_t;
typedef struct sal_log_plat_bus_err_info {
sal_log_section_hdr_t header;
struct {
u64 err_status : 1,
requestor_id : 1,
responder_id : 1,
target_id : 1,
bus_spec_data : 1,
oem_data : 1,
reserved : 58;
} valid;
u64 err_status;
u64 requestor_id;
u64 responder_id;
u64 target_id;
u64 bus_spec_data;
u8 oem_data[1]; /* Variable length OEM data */
} sal_log_plat_bus_err_info_t;
/* Overall platform error section structure */
typedef union sal_log_platform_err_info {
sal_log_mem_dev_err_info_t mem_dev_err;
sal_log_sel_dev_err_info_t sel_dev_err;
sal_log_pci_bus_err_info_t pci_bus_err;
sal_log_smbios_dev_err_info_t smbios_dev_err;
sal_log_pci_comp_err_info_t pci_comp_err;
sal_log_plat_specific_err_info_t plat_specific_err;
sal_log_host_ctlr_err_info_t host_ctlr_err;
sal_log_plat_bus_err_info_t plat_bus_err;
} sal_log_platform_err_info_t;
/* SAL log over-all, multi-section error record structure (processor+platform) */
typedef struct err_rec {
sal_log_record_header_t sal_elog_header;
sal_log_processor_info_t proc_err;
sal_log_platform_err_info_t plat_err;
u8 oem_data_pad[1024];
} ia64_err_rec_t;
/*
* Now define a couple of inline functions for improved type checking
* and convenience.
*/
static inline long
ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
unsigned long *drift_info)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_FREQ_BASE, which, 0, 0, 0, 0, 0, 0);
*ticks_per_second = isrv.v0;
*drift_info = isrv.v1;
return isrv.status;
}
extern s64 ia64_sal_cache_flush (u64 cache_type);
extern void __init check_sal_cache_flush (void);
/* Initialize all the processor and platform level instruction and data caches */
static inline s64
ia64_sal_cache_init (void)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_CACHE_INIT, 0, 0, 0, 0, 0, 0, 0);
return isrv.status;
}
/*
* Clear the processor and platform information logged by SAL with respect to the machine
* state at the time of MCA's, INITs, CMCs, or CPEs.
*/
static inline s64
ia64_sal_clear_state_info (u64 sal_info_type)
{
struct ia64_sal_retval isrv;
SAL_CALL_REENTRANT(isrv, SAL_CLEAR_STATE_INFO, sal_info_type, 0,
0, 0, 0, 0, 0);
return isrv.status;
}
/* Get the processor and platform information logged by SAL with respect to the machine
* state at the time of the MCAs, INITs, CMCs, or CPEs.
*/
static inline u64
ia64_sal_get_state_info (u64 sal_info_type, u64 *sal_info)
{
struct ia64_sal_retval isrv;
SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO, sal_info_type, 0,
sal_info, 0, 0, 0, 0);
if (isrv.status)
return 0;
return isrv.v0;
}
/*
* Get the maximum size of the information logged by SAL with respect to the machine state
* at the time of MCAs, INITs, CMCs, or CPEs.
*/
static inline u64
ia64_sal_get_state_info_size (u64 sal_info_type)
{
struct ia64_sal_retval isrv;
SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO_SIZE, sal_info_type, 0,
0, 0, 0, 0, 0);
if (isrv.status)
return 0;
return isrv.v0;
}
/*
* Causes the processor to go into a spin loop within SAL where SAL awaits a wakeup from
* the monarch processor. Must not lock, because it will not return on any cpu until the
* monarch processor sends a wake up.
*/
static inline s64
ia64_sal_mc_rendez (void)
{
struct ia64_sal_retval isrv;
SAL_CALL_NOLOCK(isrv, SAL_MC_RENDEZ, 0, 0, 0, 0, 0, 0, 0);
return isrv.status;
}
/*
* Allow the OS to specify the interrupt number to be used by SAL to interrupt OS during
* the machine check rendezvous sequence as well as the mechanism to wake up the
* non-monarch processor at the end of machine check processing.
* Returns the complete ia64_sal_retval because some calls return more than just a status
* value.
*/
static inline struct ia64_sal_retval
ia64_sal_mc_set_params (u64 param_type, u64 i_or_m, u64 i_or_m_val, u64 timeout, u64 rz_always)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_MC_SET_PARAMS, param_type, i_or_m, i_or_m_val,
timeout, rz_always, 0, 0);
return isrv;
}
/* Read from PCI configuration space */
static inline s64
ia64_sal_pci_config_read (u64 pci_config_addr, int type, u64 size, u64 *value)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_PCI_CONFIG_READ, pci_config_addr, size, type, 0, 0, 0, 0);
if (value)
*value = isrv.v0;
return isrv.status;
}
/* Write to PCI configuration space */
static inline s64
ia64_sal_pci_config_write (u64 pci_config_addr, int type, u64 size, u64 value)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_PCI_CONFIG_WRITE, pci_config_addr, size, value,
type, 0, 0, 0);
return isrv.status;
}
/*
* Register physical addresses of locations needed by SAL when SAL procedures are invoked
* in virtual mode.
*/
static inline s64
ia64_sal_register_physical_addr (u64 phys_entry, u64 phys_addr)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_REGISTER_PHYSICAL_ADDR, phys_entry, phys_addr,
0, 0, 0, 0, 0);
return isrv.status;
}
/*
* Register software dependent code locations within SAL. These locations are handlers or
* entry points where SAL will pass control for the specified event. These event handlers
* are for the bott rendezvous, MCAs and INIT scenarios.
*/
static inline s64
ia64_sal_set_vectors (u64 vector_type,
u64 handler_addr1, u64 gp1, u64 handler_len1,
u64 handler_addr2, u64 gp2, u64 handler_len2)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_SET_VECTORS, vector_type,
handler_addr1, gp1, handler_len1,
handler_addr2, gp2, handler_len2);
return isrv.status;
}
/* Update the contents of PAL block in the non-volatile storage device */
static inline s64
ia64_sal_update_pal (u64 param_buf, u64 scratch_buf, u64 scratch_buf_size,
u64 *error_code, u64 *scratch_buf_size_needed)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_UPDATE_PAL, param_buf, scratch_buf, scratch_buf_size,
0, 0, 0, 0);
if (error_code)
*error_code = isrv.v0;
if (scratch_buf_size_needed)
*scratch_buf_size_needed = isrv.v1;
return isrv.status;
}
/* Get physical processor die mapping in the platform. */
static inline s64
ia64_sal_physical_id_info(u16 *splid)
{
struct ia64_sal_retval isrv;
SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0);
if (splid)
*splid = isrv.v0;
return isrv.status;
}
extern unsigned long sal_platform_features;
extern int (*salinfo_platform_oemdata)(const u8 *, u8 **, u64 *);
struct sal_ret_values {
long r8; long r9; long r10; long r11;
};
#define IA64_SAL_OEMFUNC_MIN 0x02000000
#define IA64_SAL_OEMFUNC_MAX 0x03ffffff
extern int ia64_sal_oemcall(struct ia64_sal_retval *, u64, u64, u64, u64, u64,
u64, u64, u64);
extern int ia64_sal_oemcall_nolock(struct ia64_sal_retval *, u64, u64, u64,
u64, u64, u64, u64, u64);
extern int ia64_sal_oemcall_reentrant(struct ia64_sal_retval *, u64, u64, u64,
u64, u64, u64, u64, u64);
#ifdef CONFIG_HOTPLUG_CPU
/*
* System Abstraction Layer Specification
* Section 3.2.5.1: OS_BOOT_RENDEZ to SAL return State.
* Note: region regs are stored first in head.S _start. Hence they must
* stay up front.
*/
struct sal_to_os_boot {
u64 rr[8]; /* Region Registers */
u64 br[6]; /* br0:
* return addr into SAL boot rendez routine */
u64 gr1; /* SAL:GP */
u64 gr12; /* SAL:SP */
u64 gr13; /* SAL: Task Pointer */
u64 fpsr;
u64 pfs;
u64 rnat;
u64 unat;
u64 bspstore;
u64 dcr; /* Default Control Register */
u64 iva;
u64 pta;
u64 itv;
u64 pmv;
u64 cmcv;
u64 lrr[2];
u64 gr[4];
u64 pr; /* Predicate registers */
u64 lc; /* Loop Count */
struct ia64_fpreg fp[20];
};
/*
* Global array allocated for NR_CPUS at boot time
*/
extern struct sal_to_os_boot sal_boot_rendez_state[NR_CPUS];
extern void ia64_jump_to_sal(struct sal_to_os_boot *);
#endif
extern void ia64_sal_handler_init(void *entry_point, void *gpval);
#endif /* __ASSEMBLY__ */
#endif /* _ASM_IA64_SAL_H */
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