arch: Remove Itanium (IA-64) architecture

The Itanium architecture is obsolete, and an informal survey [0] reveals
that any residual use of Itanium hardware in production is mostly HP-UX
or OpenVMS based. The use of Linux on Itanium appears to be limited to
enthusiasts that occasionally boot a fresh Linux kernel to see whether
things are still working as intended, and perhaps to churn out some
distro packages that are rarely used in practice.

None of the original companies behind Itanium still produce or support
any hardware or software for the architecture, and it is listed as
'Orphaned' in the MAINTAINERS file, as apparently, none of the engineers
that contributed on behalf of those companies (nor anyone else, for that
matter) have been willing to support or maintain the architecture
upstream or even be responsible for applying the odd fix. The Intel
firmware team removed all IA-64 support from the Tianocore/EDK2
reference implementation of EFI in 2018. (Itanium is the original
architecture for which EFI was developed, and the way Linux supports it
deviates significantly from other architectures.) Some distros, such as
Debian and Gentoo, still maintain [unofficial] ia64 ports, but many have
dropped support years ago.

While the argument is being made [1] that there is a 'for the common
good' angle to being able to build and run existing projects such as the
Grid Community Toolkit [2] on Itanium for interoperability testing, the
fact remains that none of those projects are known to be deployed on
Linux/ia64, and very few people actually have access to such a system in
the first place. Even if there were ways imaginable in which Linux/ia64
could be put to good use today, what matters is whether anyone is
actually doing that, and this does not appear to be the case.

There are no emulators widely available, and so boot testing Itanium is
generally infeasible for ordinary contributors. GCC still supports IA-64
but its compile farm [3] no longer has any IA-64 machines. GLIBC would
like to get rid of IA-64 [4] too because it would permit some overdue
code cleanups. In summary, the benefits to the ecosystem of having IA-64
be part of it are mostly theoretical, whereas the maintenance overhead
of keeping it supported is real.

So let's rip off the band aid, and remove the IA-64 arch code entirely.
This follows the timeline proposed by the Debian/ia64 maintainer [5],
which removes support in a controlled manner, leaving IA-64 in a known
good state in the most recent LTS release. Other projects will follow
once the kernel support is removed.

[0] https://lore.kernel.org/all/CAMj1kXFCMh_578jniKpUtx_j8ByHnt=s7S+yQ+vGbKt9ud7+kQ@mail.gmail.com/
[1] https://lore.kernel.org/all/0075883c-7c51-00f5-2c2d-5119c1820410@web.de/
[2] https://gridcf.org/gct-docs/latest/index.html
[3] https://cfarm.tetaneutral.net/machines/list/
[4] https://lore.kernel.org/all/87bkiilpc4.fsf@mid.deneb.enyo.de/
[5] https://lore.kernel.org/all/ff58a3e76e5102c94bb5946d99187b358def688a.camel@physik.fu-berlin.de/

Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

1 files changed, 0 insertions, 919 deletions

diff --git a/arch/ia64/include/asm/sal.h b/arch/ia64/include/asm/sal.h
deleted file mode 100644
index 22749a201e92..000000000000
--- a/arch/ia64/include/asm/sal.h
+++ /dev/null
@@ -1,919 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#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/fpu.h>
-
-extern unsigned long sal_systab_phys;
-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").
-	 */
-	long status;
-	unsigned long v0;
-	unsigned long v1;
-	unsigned long 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 PROCESSOR_ABSTRACTION_LAYER_OVERWRITE_GUID \
-    EFI_GUID(0x6cb0a200, 0x893a, 0x11da, 0x96, 0xd2, 0x0, 0x10, 0x83, 0xff, \
-		0xca, 0x4d)
-
-#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
-
-/*
- * Error Recovery Info (ERI) bit decode.  From SAL Spec section B.2.2 Table B-3
- * Error Section Error_Recovery_Info Field Definition.
- */
-#define ERI_NOT_VALID		0x0	/* Error Recovery Field is not valid */
-#define ERI_NOT_ACCESSIBLE	0x30	/* Resource not accessible */
-#define ERI_CONTAINMENT_WARN	0x22	/* Corrupt data propagated */
-#define ERI_UNCORRECTED_ERROR	0x20	/* Uncorrected error */
-#define ERI_COMPONENT_RESET	0x24	/* Component must be reset */
-#define ERI_CORR_ERROR_LOG	0x21	/* Corrected error, needs logging */
-#define ERI_CORR_ERROR_THRESH	0x29	/* Corrected error threshold exceeded */
-
-/* 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 */
-    u8 error_recovery_info;		/* Platform error recovery status */
-    u8 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;
-	struct pal_min_state_area 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[];
-	/*
-	 * 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.
- */
-
-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;
-
-	if (sal_revision < SAL_VERSION_CODE(3,2))
-		return -1;
-
-	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);
-extern long
-ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
-		    unsigned long *drift_info);
-#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);
-
-#define PALO_MAX_TLB_PURGES	0xFFFF
-#define PALO_SIG	"PALO"
-
-struct palo_table {
-	u8  signature[4];	/* Should be "PALO" */
-	u32 length;
-	u8  minor_revision;
-	u8  major_revision;
-	u8  checksum;
-	u8  reserved1[5];
-	u16 max_tlb_purges;
-	u8  reserved2[6];
-};
-
-#define NPTCG_FROM_PAL			0
-#define NPTCG_FROM_PALO			1
-#define NPTCG_FROM_KERNEL_PARAMETER	2
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_IA64_SAL_H */