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/* 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 */

Filemanager

Name Type Size Permission Actions
native Folder 0755
sn Folder 0755
uv Folder 0755
Kbuild File 224 B 0644
acenv.h File 1.27 KB 0644
acpi-ext.h File 590 B 0644
acpi.h File 4.1 KB 0644
agp.h File 857 B 0644
asm-offsets.h File 35 B 0644
asm-prototypes.h File 890 B 0644
asmmacro.h File 3.29 KB 0644
atomic.h File 9.47 KB 0644
barrier.h File 2.36 KB 0644
bitops.h File 10.84 KB 0644
bug.h File 404 B 0644
bugs.h File 436 B 0644
cache.h File 771 B 0644
cacheflush.h File 1.71 KB 0644
checksum.h File 2.1 KB 0644
clocksource.h File 276 B 0644
cpu.h File 456 B 0644
cputime.h File 855 B 0644
current.h File 418 B 0644
cyclone.h File 442 B 0644
delay.h File 1.7 KB 0644
device.h File 323 B 0644
div64.h File 31 B 0644
dma-mapping.h File 1.17 KB 0644
dma.h File 466 B 0644
dmi.h File 343 B 0644
early_ioremap.h File 428 B 0644
elf.h File 9.83 KB 0644
emergency-restart.h File 149 B 0644
esi.h File 887 B 0644
exception.h File 1.13 KB 0644
export.h File 115 B 0644
extable.h File 330 B 0644
fb.h File 569 B 0644
fpswa.h File 1.88 KB 0644
ftrace.h File 748 B 0644
futex.h File 2.56 KB 0644
gcc_intrin.h File 368 B 0644
hardirq.h File 564 B 0644
hpsim.h File 364 B 0644
hugetlb.h File 1.67 KB 0644
hw_irq.h File 6.33 KB 0644
idle.h File 200 B 0644
intrinsics.h File 306 B 0644
io.h File 11.77 KB 0644
iommu.h File 555 B 0644
iommu_table.h File 175 B 0644
iosapic.h File 3.16 KB 0644
irq.h File 1.02 KB 0644
irq_regs.h File 34 B 0644
irq_remapping.h File 142 B 0644
irqflags.h File 2.11 KB 0644
kdebug.h File 1.64 KB 0644
kexec.h File 1.57 KB 0644
kmap_types.h File 260 B 0644
kprobes.h File 3.82 KB 0644
kregs.h File 6.73 KB 0644
libata-portmap.h File 225 B 0644
linkage.h File 398 B 0644
local.h File 31 B 0644
local64.h File 33 B 0644
machvec.h File 12.1 KB 0644
machvec_dig.h File 449 B 0644
machvec_dig_vtd.h File 558 B 0644
machvec_hpsim.h File 544 B 0644
machvec_hpzx1.h File 544 B 0644
machvec_hpzx1_swiotlb.h File 632 B 0644
machvec_init.h File 1.33 KB 0644
machvec_sn2.h File 4.71 KB 0644
machvec_uv.h File 684 B 0644
mca.h File 5.91 KB 0644
mca_asm.h File 7.18 KB 0644
meminit.h File 2.24 KB 0644
mman.h File 432 B 0644
mmu.h File 374 B 0644
mmu_context.h File 5.29 KB 0644
mmzone.h File 1.1 KB 0644
module.h File 1.1 KB 0644
msidef.h File 1.4 KB 0644
nodedata.h File 1.85 KB 0644
numa.h File 2.18 KB 0644
page.h File 6.49 KB 0644
pal.h File 53.39 KB 0644
param.h File 439 B 0644
parport.h File 534 B 0644
patch.h File 1.19 KB 0644
pci.h File 2.83 KB 0644
percpu.h File 1.32 KB 0644
perfmon.h File 4.33 KB 0644
pgalloc.h File 2.84 KB 0644
pgtable.h File 20.92 KB 0644
processor.h File 17.98 KB 0644
ptrace.h File 5.2 KB 0644
rwsem.h File 3.82 KB 0644
sal.h File 26.51 KB 0644
sections.h File 1.35 KB 0644
segment.h File 162 B 0644
serial.h File 446 B 0644
shmparam.h File 445 B 0644
signal.h File 749 B 0644
smp.h File 3.21 KB 0644
sparsemem.h File 621 B 0644
spinlock.h File 6.92 KB 0644
spinlock_types.h File 475 B 0644
string.h File 659 B 0644
swiotlb.h File 344 B 0644
switch_to.h File 2.89 KB 0644
syscall.h File 2.06 KB 0644
termios.h File 1.88 KB 0644
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timex.h File 1.47 KB 0644
tlb.h File 8.42 KB 0644
tlbflush.h File 2.33 KB 0644
topology.h File 1.58 KB 0644
types.h File 828 B 0644
uaccess.h File 9.86 KB 0644
unaligned.h File 337 B 0644
uncached.h File 463 B 0644
unistd.h File 1.45 KB 0644
unwind.h File 5.74 KB 0644
user.h File 2.25 KB 0644
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vga.h File 657 B 0644
xor.h File 1.12 KB 0644