Release 4.14 arch/ia64/include/asm/mca.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* File: mca.h
* Purpose: Machine check handling specific defines
*
* Copyright (C) 1999, 2004 Silicon Graphics, Inc.
* Copyright (C) Vijay Chander <vijay@engr.sgi.com>
* Copyright (C) Srinivasa Thirumalachar <sprasad@engr.sgi.com>
* Copyright (C) Russ Anderson <rja@sgi.com>
*/
#ifndef _ASM_IA64_MCA_H
#define _ASM_IA64_MCA_H
#if !defined(__ASSEMBLY__)
#include <linux/interrupt.h>
#include <linux/types.h>
#include <asm/param.h>
#include <asm/sal.h>
#include <asm/processor.h>
#include <asm/mca_asm.h>
#define IA64_MCA_RENDEZ_TIMEOUT (20 * 1000)
/* value in milliseconds - 20 seconds */
typedef struct ia64_fptr {
unsigned long fp;
unsigned long gp;
} ia64_fptr_t;
typedef union cmcv_reg_u {
u64 cmcv_regval;
struct {
u64 cmcr_vector : 8;
u64 cmcr_reserved1 : 4;
u64 cmcr_ignored1 : 1;
u64 cmcr_reserved2 : 3;
u64 cmcr_mask : 1;
u64 cmcr_ignored2 : 47;
} cmcv_reg_s;
} cmcv_reg_t;
#define cmcv_mask cmcv_reg_s.cmcr_mask
#define cmcv_vector cmcv_reg_s.cmcr_vector
enum {
IA64_MCA_RENDEZ_CHECKIN_NOTDONE = 0x0,
IA64_MCA_RENDEZ_CHECKIN_DONE = 0x1,
IA64_MCA_RENDEZ_CHECKIN_INIT = 0x2,
IA64_MCA_RENDEZ_CHECKIN_CONCURRENT_MCA = 0x3,
};
/* Information maintained by the MC infrastructure */
typedef struct ia64_mc_info_s {
u64 imi_mca_handler;
size_t imi_mca_handler_size;
u64 imi_monarch_init_handler;
size_t imi_monarch_init_handler_size;
u64 imi_slave_init_handler;
size_t imi_slave_init_handler_size;
u8 imi_rendez_checkin[NR_CPUS];
} ia64_mc_info_t;
/* Handover state from SAL to OS and vice versa, for both MCA and INIT events.
* Besides the handover state, it also contains some saved registers from the
* time of the event.
* Note: mca_asm.S depends on the precise layout of this structure.
*/
struct ia64_sal_os_state {
/* SAL to OS */
unsigned long os_gp; /* GP of the os registered with the SAL, physical */
unsigned long pal_proc; /* PAL_PROC entry point, physical */
unsigned long sal_proc; /* SAL_PROC entry point, physical */
unsigned long rv_rc; /* MCA - Rendezvous state, INIT - reason code */
unsigned long proc_state_param; /* from R18 */
unsigned long monarch; /* 1 for a monarch event, 0 for a slave */
/* common */
unsigned long sal_ra; /* Return address in SAL, physical */
unsigned long sal_gp; /* GP of the SAL - physical */
pal_min_state_area_t *pal_min_state; /* from R17. physical in asm, virtual in C */
/* Previous values of IA64_KR(CURRENT) and IA64_KR(CURRENT_STACK).
* Note: if the MCA/INIT recovery code wants to resume to a new context
* then it must change these values to reflect the new kernel stack.
*/
unsigned long prev_IA64_KR_CURRENT; /* previous value of IA64_KR(CURRENT) */
unsigned long prev_IA64_KR_CURRENT_STACK;
struct task_struct *prev_task; /* previous task, NULL if it is not useful */
/* Some interrupt registers are not saved in minstate, pt_regs or
* switch_stack. Because MCA/INIT can occur when interrupts are
* disabled, we need to save the additional interrupt registers over
* MCA/INIT and resume.
*/
unsigned long isr;
unsigned long ifa;
unsigned long itir;
unsigned long iipa;
unsigned long iim;
unsigned long iha;
/* OS to SAL */
unsigned long os_status; /* OS status to SAL, enum below */
unsigned long context; /* 0 if return to same context
1 if return to new context */
/* I-resources */
unsigned long iip;
unsigned long ipsr;
unsigned long ifs;
};
enum {
IA64_MCA_CORRECTED = 0x0, /* Error has been corrected by OS_MCA */
IA64_MCA_WARM_BOOT = -1, /* Warm boot of the system need from SAL */
IA64_MCA_COLD_BOOT = -2, /* Cold boot of the system need from SAL */
IA64_MCA_HALT = -3 /* System to be halted by SAL */
};
enum {
IA64_INIT_RESUME = 0x0, /* Resume after return from INIT */
IA64_INIT_WARM_BOOT = -1, /* Warm boot of the system need from SAL */
};
enum {
IA64_MCA_SAME_CONTEXT = 0x0, /* SAL to return to same context */
IA64_MCA_NEW_CONTEXT = -1 /* SAL to return to new context */
};
/* Per-CPU MCA state that is too big for normal per-CPU variables. */
struct ia64_mca_cpu {
u64 mca_stack[KERNEL_STACK_SIZE/8];
u64 init_stack[KERNEL_STACK_SIZE/8];
};
/* Array of physical addresses of each CPU's MCA area. */
extern unsigned long __per_cpu_mca[NR_CPUS];
extern int cpe_vector;
extern int ia64_cpe_irq;
extern void ia64_mca_init(void);
extern void ia64_mca_irq_init(void);
extern void ia64_mca_cpu_init(void *);
extern void ia64_os_mca_dispatch(void);
extern void ia64_os_mca_dispatch_end(void);
extern void ia64_mca_ucmc_handler(struct pt_regs *, struct ia64_sal_os_state *);
extern void ia64_init_handler(struct pt_regs *,
struct switch_stack *,
struct ia64_sal_os_state *);
extern void ia64_os_init_on_kdump(void);
extern void ia64_monarch_init_handler(void);
extern void ia64_slave_init_handler(void);
extern void ia64_mca_cmc_vector_setup(void);
extern int ia64_reg_MCA_extension(int (*fn)(void *, struct ia64_sal_os_state *));
extern void ia64_unreg_MCA_extension(void);
extern unsigned long ia64_get_rnat(unsigned long *);
extern void ia64_set_psr_mc(void);
extern void ia64_mca_printk(const char * fmt, ...)
__attribute__ ((format (printf, 1, 2)));
struct ia64_mca_notify_die {
struct ia64_sal_os_state *sos;
int *monarch_cpu;
int *data;
};
DECLARE_PER_CPU(u64, ia64_mca_pal_base);
#else /* __ASSEMBLY__ */
#define IA64_MCA_CORRECTED 0x0
/* Error has been corrected by OS_MCA */
#define IA64_MCA_WARM_BOOT -1
/* Warm boot of the system need from SAL */
#define IA64_MCA_COLD_BOOT -2
/* Cold boot of the system need from SAL */
#define IA64_MCA_HALT -3
/* System to be halted by SAL */
#define IA64_INIT_RESUME 0x0
/* Resume after return from INIT */
#define IA64_INIT_WARM_BOOT -1
/* Warm boot of the system need from SAL */
#define IA64_MCA_SAME_CONTEXT 0x0
/* SAL to return to same context */
#define IA64_MCA_NEW_CONTEXT -1
/* SAL to return to new context */
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_IA64_MCA_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 206 | 34.22% | 3 | 10.00% |
| Keith Owens | 178 | 29.57% | 5 | 16.67% |
| David Mosberger-Tang | 45 | 7.48% | 4 | 13.33% |
| Hidetoshi Seto | 41 | 6.81% | 5 | 16.67% |
| Matthew Wilcox | 40 | 6.64% | 1 | 3.33% |
| Kenji Kaneshige | 22 | 3.65% | 1 | 3.33% |
| Tony Luck | 18 | 2.99% | 3 | 10.00% |
| Russ Anderson | 16 | 2.66% | 3 | 10.00% |
| Takao Indoh | 13 | 2.16% | 1 | 3.33% |
| Ashok Raj | 8 | 1.33% | 1 | 3.33% |
| Linus Torvalds | 7 | 1.16% | 1 | 3.33% |
| Simon Horman | 7 | 1.16% | 1 | 3.33% |
| Greg Kroah-Hartman | 1 | 0.17% | 1 | 3.33% |
| Total | 602 | 100.00% | 30 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.