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/* SPDX-License-Identifier: GPL-2.0 */
/*
 *   Machine check handler definitions
 *
 *    Copyright IBM Corp. 2000, 2009
 *    Author(s): Ingo Adlung <adlung@de.ibm.com>,
 *		 Martin Schwidefsky <schwidefsky@de.ibm.com>,
 *		 Cornelia Huck <cornelia.huck@de.ibm.com>,
 *		 Heiko Carstens <heiko.carstens@de.ibm.com>,
 */

#ifndef _ASM_S390_NMI_H
#define _ASM_S390_NMI_H

#include <linux/const.h>
#include <linux/types.h>

#define MCIC_SUBCLASS_MASK	(1ULL<<63 | 1ULL<<62 | 1ULL<<61 | \
				1ULL<<59 | 1ULL<<58 | 1ULL<<56 | \
				1ULL<<55 | 1ULL<<54 | 1ULL<<53 | \
				1ULL<<52 | 1ULL<<47 | 1ULL<<46 | \
				1ULL<<45 | 1ULL<<44)
#define MCCK_CODE_SYSTEM_DAMAGE		_BITUL(63)
#define MCCK_CODE_EXT_DAMAGE		_BITUL(63 - 5)
#define MCCK_CODE_CP			_BITUL(63 - 9)
#define MCCK_CODE_CPU_TIMER_VALID	_BITUL(63 - 46)
#define MCCK_CODE_PSW_MWP_VALID		_BITUL(63 - 20)
#define MCCK_CODE_PSW_IA_VALID		_BITUL(63 - 23)
#define MCCK_CODE_CR_VALID		_BITUL(63 - 29)
#define MCCK_CODE_GS_VALID		_BITUL(63 - 36)
#define MCCK_CODE_FC_VALID		_BITUL(63 - 43)

#ifndef __ASSEMBLY__

union mci {
	unsigned long val;
	struct {
		u64 sd :  1; /* 00 system damage */
		u64 pd :  1; /* 01 instruction-processing damage */
		u64 sr :  1; /* 02 system recovery */
		u64    :  1; /* 03 */
		u64 cd :  1; /* 04 timing-facility damage */
		u64 ed :  1; /* 05 external damage */
		u64    :  1; /* 06 */
		u64 dg :  1; /* 07 degradation */
		u64 w  :  1; /* 08 warning pending */
		u64 cp :  1; /* 09 channel-report pending */
		u64 sp :  1; /* 10 service-processor damage */
		u64 ck :  1; /* 11 channel-subsystem damage */
		u64    :  2; /* 12-13 */
		u64 b  :  1; /* 14 backed up */
		u64    :  1; /* 15 */
		u64 se :  1; /* 16 storage error uncorrected */
		u64 sc :  1; /* 17 storage error corrected */
		u64 ke :  1; /* 18 storage-key error uncorrected */
		u64 ds :  1; /* 19 storage degradation */
		u64 wp :  1; /* 20 psw mwp validity */
		u64 ms :  1; /* 21 psw mask and key validity */
		u64 pm :  1; /* 22 psw program mask and cc validity */
		u64 ia :  1; /* 23 psw instruction address validity */
		u64 fa :  1; /* 24 failing storage address validity */
		u64 vr :  1; /* 25 vector register validity */
		u64 ec :  1; /* 26 external damage code validity */
		u64 fp :  1; /* 27 floating point register validity */
		u64 gr :  1; /* 28 general register validity */
		u64 cr :  1; /* 29 control register validity */
		u64    :  1; /* 30 */
		u64 st :  1; /* 31 storage logical validity */
		u64 ie :  1; /* 32 indirect storage error */
		u64 ar :  1; /* 33 access register validity */
		u64 da :  1; /* 34 delayed access exception */
		u64    :  1; /* 35 */
		u64 gs :  1; /* 36 guarded storage registers validity */
		u64    :  5; /* 37-41 */
		u64 pr :  1; /* 42 tod programmable register validity */
		u64 fc :  1; /* 43 fp control register validity */
		u64 ap :  1; /* 44 ancillary report */
		u64    :  1; /* 45 */
		u64 ct :  1; /* 46 cpu timer validity */
		u64 cc :  1; /* 47 clock comparator validity */
		u64    : 16; /* 47-63 */
	};
};

#define MCESA_ORIGIN_MASK	(~0x3ffUL)
#define MCESA_LC_MASK		(0xfUL)
#define MCESA_MIN_SIZE		(1024)
#define MCESA_MAX_SIZE		(2048)

struct mcesa {
	u8 vector_save_area[1024];
	u8 guarded_storage_save_area[32];
};

struct pt_regs;

void nmi_alloc_boot_cpu(struct lowcore *lc);
int nmi_alloc_per_cpu(struct lowcore *lc);
void nmi_free_per_cpu(struct lowcore *lc);

void s390_handle_mcck(void);
void s390_do_machine_check(struct pt_regs *regs);

#endif /* __ASSEMBLY__ */
#endif /* _ASM_S390_NMI_H */

Filemanager

Name Type Size Permission Actions
fpu Folder 0755
trace Folder 0755
Kbuild File 557 B 0644
airq.h File 3.02 KB 0644
alternative-asm.h File 3.07 KB 0644
alternative.h File 4.99 KB 0644
ap.h File 9.9 KB 0644
appldata.h File 1.54 KB 0644
archrandom.h File 1.1 KB 0644
asm-prototypes.h File 227 B 0644
atomic.h File 5.1 KB 0644
atomic_ops.h File 4.02 KB 0644
barrier.h File 1.84 KB 0644
bitops.h File 10.13 KB 0644
bug.h File 1.49 KB 0644
bugs.h File 441 B 0644
cache.h File 387 B 0644
ccwdev.h File 7.99 KB 0644
ccwgroup.h File 2.53 KB 0644
checksum.h File 3.24 KB 0644
chpid.h File 974 B 0644
cio.h File 8.01 KB 0644
clp.h File 1.32 KB 0644
cmb.h File 425 B 0644
cmpxchg.h File 1.76 KB 0644
compat.h File 7.9 KB 0644
cpacf.h File 16.8 KB 0644
cpcmd.h File 1.11 KB 0644
cpu.h File 549 B 0644
cpu_mf.h File 8.99 KB 0644
cpufeature.h File 963 B 0644
cputime.h File 805 B 0644
crw.h File 1.86 KB 0644
css_chars.h File 769 B 0644
ctl_reg.h File 2.89 KB 0644
current.h File 405 B 0644
debug.h File 8.1 KB 0644
delay.h File 721 B 0644
diag.h File 5.94 KB 0644
dis.h File 637 B 0644
dma-mapping.h File 621 B 0644
dma.h File 456 B 0644
eadm.h File 2.03 KB 0644
ebcdic.h File 1.41 KB 0644
elf.h File 10.36 KB 0644
exec.h File 269 B 0644
extable.h File 875 B 0644
extmem.h File 804 B 0644
facility.h File 2.44 KB 0644
fcx.h File 7.91 KB 0644
ftrace.h File 1.66 KB 0644
futex.h File 2.07 KB 0644
gmap.h File 4.93 KB 0644
hardirq.h File 670 B 0644
hugetlb.h File 2.82 KB 0644
hw_irq.h File 249 B 0644
idals.h File 5.22 KB 0644
idle.h File 709 B 0644
io.h File 2.03 KB 0644
ipl.h File 3.6 KB 0644
irq.h File 2.55 KB 0644
irqflags.h File 1.76 KB 0644
isc.h File 1000 B 0644
itcw.h File 950 B 0644
jump_label.h File 1.36 KB 0644
kdebug.h File 386 B 0644
kexec.h File 1.32 KB 0644
kprobes.h File 2.24 KB 0644
kvm_host.h File 22.24 KB 0644
kvm_para.h File 5.78 KB 0644
linkage.h File 633 B 0644
livepatch.h File 461 B 0644
lowcore.h File 6.29 KB 0644
mmu.h File 1.19 KB 0644
mmu_context.h File 3.84 KB 0644
mmzone.h File 316 B 0644
module.h File 802 B 0644
nmi.h File 3.44 KB 0644
nospec-branch.h File 342 B 0644
nospec-insn.h File 3.81 KB 0644
numa.h File 730 B 0644
os_info.h File 1.1 KB 0644
page-states.h File 486 B 0644
page.h File 5.12 KB 0644
pci.h File 6.26 KB 0644
pci_clp.h File 4.25 KB 0644
pci_debug.h File 608 B 0644
pci_dma.h File 5.7 KB 0644
pci_insn.h File 2.59 KB 0644
pci_io.h File 4.58 KB 0644
percpu.h File 6.43 KB 0644
perf_event.h File 2.71 KB 0644
pgalloc.h File 4.32 KB 0644
pgtable.h File 47.7 KB 0644
pkey.h File 4.23 KB 0644
preempt.h File 3.25 KB 0644
processor.h File 10.42 KB 0644
ptrace.h File 5.27 KB 0644
qdio.h File 11.67 KB 0644
reset.h File 471 B 0644
runtime_instr.h File 1.76 KB 0644
schid.h File 525 B 0644
sclp.h File 3.38 KB 0644
scsw.h File 24.1 KB 0644
seccomp.h File 516 B 0644
sections.h File 155 B 0644
segment.h File 93 B 0644
serial.h File 147 B 0644
set_memory.h File 779 B 0644
setup.h File 4.44 KB 0644
shmparam.h File 285 B 0644
signal.h File 644 B 0644
sigp.h File 1.8 KB 0644
smp.h File 2.45 KB 0644
sparsemem.h File 214 B 0644
spinlock.h File 3.53 KB 0644
spinlock_types.h File 437 B 0644
stp.h File 1.26 KB 0644
string.h File 4.5 KB 0644
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thread_info.h File 3.15 KB 0644
timex.h File 6.15 KB 0644
tlb.h File 5.71 KB 0644
tlbflush.h File 3.52 KB 0644
topology.h File 2.69 KB 0644
uaccess.h File 6.57 KB 0644
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user.h File 3.3 KB 0644
vdso.h File 1.8 KB 0644
vga.h File 170 B 0644
vtime.h File 182 B 0644
vtimer.h File 866 B 0644
vx-insn.h File 10.66 KB 0644
xor.h File 454 B 0644