OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	05/09/2024 07:14:13 AM	rwxr-xr-x
📄 Kbuild	557 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 airq.h	3.02 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 alternative-asm.h	3.07 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 alternative.h	4.99 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ap.h	9.9 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 appldata.h	1.54 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 archrandom.h	1.17 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 asm-prototypes.h	227 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 atomic.h	5.1 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 atomic_ops.h	4.02 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 barrier.h	1.84 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 bitops.h	10.13 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 bug.h	1.49 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 bugs.h	441 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cache.h	387 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 ccwdev.h	7.99 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ccwgroup.h	2.53 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 checksum.h	3.24 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 chpid.h	974 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cio.h	8.01 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 clp.h	1.32 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cmb.h	425 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cmpxchg.h	1.76 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 compat.h	7.9 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cpacf.h	16.8 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 cpcmd.h	1.11 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cpu.h	549 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cpu_mf.h	8.99 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 cpufeature.h	963 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cputime.h	805 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 crw.h	1.86 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 css_chars.h	769 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 ctl_reg.h	2.89 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 current.h	405 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 debug.h	8.1 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 delay.h	721 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 diag.h	5.94 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 dis.h	637 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 dma-mapping.h	621 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 dma.h	456 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 eadm.h	2.03 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ebcdic.h	1.41 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 elf.h	10.36 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 exec.h	269 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 extable.h	875 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 extmem.h	804 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 facility.h	2.44 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 fcx.h	7.91 KB	01/28/2018 09:20:33 PM	rw-r--r--
📁 fpu	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 ftrace.h	1.66 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 futex.h	2.09 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 gmap.h	4.93 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 hardirq.h	670 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 hugetlb.h	2.87 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 hw_irq.h	249 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 idals.h	5.22 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 idle.h	709 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 io.h	2.03 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ipl.h	3.6 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 irq.h	2.55 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 irqflags.h	1.76 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 isc.h	1000 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 itcw.h	950 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 jump_label.h	1.36 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 kdebug.h	386 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 kexec.h	1.32 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 kprobes.h	2.24 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 kvm_host.h	22.24 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 kvm_para.h	5.78 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 linkage.h	633 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 livepatch.h	461 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 lowcore.h	6.29 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 mmu.h	1.19 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 mmu_context.h	3.84 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 mmzone.h	316 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 module.h	802 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 nmi.h	3.44 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 nospec-branch.h	342 bytes	06/16/2023 05:32:39 PM	rw-r--r--
📄 nospec-insn.h	3.81 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 numa.h	730 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 os_info.h	1.1 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 page-states.h	486 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 page.h	5.12 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 pci.h	6.26 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 pci_clp.h	4.25 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pci_debug.h	608 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 pci_dma.h	5.7 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pci_insn.h	2.59 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pci_io.h	4.58 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 percpu.h	6.44 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 perf_event.h	2.71 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pgalloc.h	4.32 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 pgtable.h	47.7 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 pkey.h	4.23 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 preempt.h	3.25 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 processor.h	10.42 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 ptrace.h	5.27 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 qdio.h	11.67 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 reset.h	471 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 runtime_instr.h	1.76 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 schid.h	525 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 sclp.h	3.38 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 scsw.h	24.1 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 seccomp.h	516 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 sections.h	155 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 segment.h	93 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 serial.h	147 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 set_memory.h	779 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 setup.h	4.44 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 shmparam.h	285 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 signal.h	644 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 sigp.h	1.8 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 smp.h	2.45 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 sparsemem.h	214 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 spinlock.h	3.53 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 spinlock_types.h	437 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 stp.h	1.26 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 string.h	4.5 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 switch_to.h	1.37 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 syscall.h	2.63 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 sysinfo.h	4.22 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 termios.h	685 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 thread_info.h	3.15 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 timex.h	6.15 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 tlb.h	5.71 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 tlbflush.h	3.52 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 topology.h	2.69 KB	06/16/2023 05:32:39 PM	rw-r--r--
📁 trace	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 uaccess.h	6.57 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 unistd.h	1.03 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 uprobes.h	588 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 user.h	3.3 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 vdso.h	1.8 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 vga.h	170 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 vtime.h	182 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 vtimer.h	866 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 vx-insn.h	10.66 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 xor.h	454 bytes	01/28/2018 09:20:33 PM	rw-r--r--

Editing: processor.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  S390 version
 *    Copyright IBM Corp. 1999
 *    Author(s): Hartmut Penner (hp@de.ibm.com),
 *               Martin Schwidefsky (schwidefsky@de.ibm.com)
 *
 *  Derived from "include/asm-i386/processor.h"
 *    Copyright (C) 1994, Linus Torvalds
 */

#ifndef __ASM_S390_PROCESSOR_H
#define __ASM_S390_PROCESSOR_H

#include <linux/const.h>

#define CIF_MCCK_PENDING	0	/* machine check handling is pending */
#define CIF_ASCE_PRIMARY	1	/* primary asce needs fixup / uaccess */
#define CIF_ASCE_SECONDARY	2	/* secondary asce needs fixup / uaccess */
#define CIF_NOHZ_DELAY		3	/* delay HZ disable for a tick */
#define CIF_FPU			4	/* restore FPU registers */
#define CIF_IGNORE_IRQ		5	/* ignore interrupt (for udelay) */
#define CIF_ENABLED_WAIT	6	/* in enabled wait state */
#define CIF_MCCK_GUEST		7	/* machine check happening in guest */
#define CIF_DEDICATED_CPU	8	/* this CPU is dedicated */

#define _CIF_MCCK_PENDING	_BITUL(CIF_MCCK_PENDING)
#define _CIF_ASCE_PRIMARY	_BITUL(CIF_ASCE_PRIMARY)
#define _CIF_ASCE_SECONDARY	_BITUL(CIF_ASCE_SECONDARY)
#define _CIF_NOHZ_DELAY		_BITUL(CIF_NOHZ_DELAY)
#define _CIF_FPU		_BITUL(CIF_FPU)
#define _CIF_IGNORE_IRQ		_BITUL(CIF_IGNORE_IRQ)
#define _CIF_ENABLED_WAIT	_BITUL(CIF_ENABLED_WAIT)
#define _CIF_MCCK_GUEST		_BITUL(CIF_MCCK_GUEST)
#define _CIF_DEDICATED_CPU	_BITUL(CIF_DEDICATED_CPU)

#ifndef __ASSEMBLY__

#include <linux/linkage.h>
#include <linux/irqflags.h>
#include <asm/cpu.h>
#include <asm/page.h>
#include <asm/ptrace.h>
#include <asm/setup.h>
#include <asm/runtime_instr.h>
#include <asm/fpu/types.h>
#include <asm/fpu/internal.h>

static inline void set_cpu_flag(int flag)
{
	S390_lowcore.cpu_flags |= (1UL << flag);
}

static inline void clear_cpu_flag(int flag)
{
	S390_lowcore.cpu_flags &= ~(1UL << flag);
}

static inline int test_cpu_flag(int flag)
{
	return !!(S390_lowcore.cpu_flags & (1UL << flag));
}

/*
 * Test CIF flag of another CPU. The caller needs to ensure that
 * CPU hotplug can not happen, e.g. by disabling preemption.
 */
static inline int test_cpu_flag_of(int flag, int cpu)
{
	struct lowcore *lc = lowcore_ptr[cpu];
	return !!(lc->cpu_flags & (1UL << flag));
}

#define arch_needs_cpu() test_cpu_flag(CIF_NOHZ_DELAY)

/*
 * Default implementation of macro that returns current
 * instruction pointer ("program counter").
 */
#define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; })

static inline void get_cpu_id(struct cpuid *ptr)
{
	asm volatile("stidp %0" : "=Q" (*ptr));
}

void s390_adjust_jiffies(void);
void s390_update_cpu_mhz(void);
void cpu_detect_mhz_feature(void);

extern const struct seq_operations cpuinfo_op;
extern int sysctl_ieee_emulation_warnings;
extern void execve_tail(void);
extern void __bpon(void);

/*
 * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
 */

#define TASK_SIZE_OF(tsk)	(test_tsk_thread_flag(tsk, TIF_31BIT) ? \
					(1UL << 31) : -PAGE_SIZE)
#define TASK_UNMAPPED_BASE	(test_thread_flag(TIF_31BIT) ? \
					(1UL << 30) : (1UL << 41))
#define TASK_SIZE		TASK_SIZE_OF(current)
#define TASK_SIZE_MAX		(-PAGE_SIZE)

#define STACK_TOP		(test_thread_flag(TIF_31BIT) ? \
					(1UL << 31) : (1UL << 42))
#define STACK_TOP_MAX		(1UL << 42)

#define HAVE_ARCH_PICK_MMAP_LAYOUT

typedef unsigned int mm_segment_t;

/*
 * Thread structure
 */
struct thread_struct {
	unsigned int  acrs[NUM_ACRS];
        unsigned long ksp;              /* kernel stack pointer             */
	unsigned long user_timer;	/* task cputime in user space */
	unsigned long guest_timer;	/* task cputime in kvm guest */
	unsigned long system_timer;	/* task cputime in kernel space */
	unsigned long hardirq_timer;	/* task cputime in hardirq context */
	unsigned long softirq_timer;	/* task cputime in softirq context */
	unsigned long sys_call_table;	/* system call table address */
	mm_segment_t mm_segment;
	unsigned long gmap_addr;	/* address of last gmap fault. */
	unsigned int gmap_write_flag;	/* gmap fault write indication */
	unsigned int gmap_int_code;	/* int code of last gmap fault */
	unsigned int gmap_pfault;	/* signal of a pending guest pfault */
	/* Per-thread information related to debugging */
	struct per_regs per_user;	/* User specified PER registers */
	struct per_event per_event;	/* Cause of the last PER trap */
	unsigned long per_flags;	/* Flags to control debug behavior */
	unsigned int system_call;	/* system call number in signal */
	unsigned long last_break;	/* last breaking-event-address. */
        /* pfault_wait is used to block the process on a pfault event */
	unsigned long pfault_wait;
	struct list_head list;
	/* cpu runtime instrumentation */
	struct runtime_instr_cb *ri_cb;
	struct gs_cb *gs_cb;		/* Current guarded storage cb */
	struct gs_cb *gs_bc_cb;		/* Broadcast guarded storage cb */
	unsigned char trap_tdb[256];	/* Transaction abort diagnose block */
	/*
	 * Warning: 'fpu' is dynamically-sized. It *MUST* be at
	 * the end.
	 */
	struct fpu fpu;			/* FP and VX register save area */
};

/* Flag to disable transactions. */
#define PER_FLAG_NO_TE			1UL
/* Flag to enable random transaction aborts. */
#define PER_FLAG_TE_ABORT_RAND		2UL
/* Flag to specify random transaction abort mode:
 * - abort each transaction at a random instruction before TEND if set.
 * - abort random transactions at a random instruction if cleared.
 */
#define PER_FLAG_TE_ABORT_RAND_TEND	4UL

typedef struct thread_struct thread_struct;

/*
 * Stack layout of a C stack frame.
 */
#ifndef __PACK_STACK
struct stack_frame {
	unsigned long back_chain;
	unsigned long empty1[5];
	unsigned long gprs[10];
	unsigned int  empty2[8];
};
#else
struct stack_frame {
	unsigned long empty1[5];
	unsigned int  empty2[8];
	unsigned long gprs[10];
	unsigned long back_chain;
};
#endif

#define ARCH_MIN_TASKALIGN	8

#define INIT_THREAD {							\
	.ksp = sizeof(init_stack) + (unsigned long) &init_stack,	\
	.fpu.regs = (void *) init_task.thread.fpu.fprs,			\
}

/*
 * Do necessary setup to start up a new thread.
 */
#define start_thread(regs, new_psw, new_stackp) do {			\
	regs->psw.mask	= PSW_USER_BITS | PSW_MASK_EA | PSW_MASK_BA;	\
	regs->psw.addr	= new_psw;					\
	regs->gprs[15]	= new_stackp;					\
	execve_tail();							\
} while (0)

#define start_thread31(regs, new_psw, new_stackp) do {			\
	regs->psw.mask	= PSW_USER_BITS | PSW_MASK_BA;			\
	regs->psw.addr	= new_psw;					\
	regs->gprs[15]	= new_stackp;					\
	crst_table_downgrade(current->mm);				\
	execve_tail();							\
} while (0)

/* Forward declaration, a strange C thing */
struct task_struct;
struct mm_struct;
struct seq_file;
struct pt_regs;

typedef int (*dump_trace_func_t)(void *data, unsigned long address, int reliable);
void dump_trace(dump_trace_func_t func, void *data,
		struct task_struct *task, unsigned long sp);
void show_registers(struct pt_regs *regs);

void show_cacheinfo(struct seq_file *m);

/* Free all resources held by a thread. */
static inline void release_thread(struct task_struct *tsk) { }

/* Free guarded storage control block */
void guarded_storage_release(struct task_struct *tsk);

unsigned long get_wchan(struct task_struct *p);
#define task_pt_regs(tsk) ((struct pt_regs *) \
        (task_stack_page(tsk) + THREAD_SIZE) - 1)
#define KSTK_EIP(tsk)	(task_pt_regs(tsk)->psw.addr)
#define KSTK_ESP(tsk)	(task_pt_regs(tsk)->gprs[15])

/* Has task runtime instrumentation enabled ? */
#define is_ri_task(tsk) (!!(tsk)->thread.ri_cb)

static inline unsigned long current_stack_pointer(void)
{
	unsigned long sp;

asm volatile("la %0,0(15)" : "=a" (sp));
	return sp;
}

static inline unsigned short stap(void)
{
	unsigned short cpu_address;

asm volatile("stap %0" : "=Q" (cpu_address));
	return cpu_address;
}

/*
 * Give up the time slice of the virtual PU.
 */
#define cpu_relax_yield cpu_relax_yield
void cpu_relax_yield(void);

#define cpu_relax() barrier()

#define ECAG_CACHE_ATTRIBUTE	0
#define ECAG_CPU_ATTRIBUTE	1

static inline unsigned long __ecag(unsigned int asi, unsigned char parm)
{
	unsigned long val;

asm volatile(".insn	rsy,0xeb000000004c,%0,0,0(%1)" /* ecag */
		     : "=d" (val) : "a" (asi << 8 | parm));
	return val;
}

static inline void psw_set_key(unsigned int key)
{
	asm volatile("spka 0(%0)" : : "d" (key));
}

/*
 * Set PSW to specified value.
 */
static inline void __load_psw(psw_t psw)
{
	asm volatile("lpswe %0" : : "Q" (psw) : "cc");
}

/*
 * Set PSW mask to specified value, while leaving the
 * PSW addr pointing to the next instruction.
 */
static inline void __load_psw_mask(unsigned long mask)
{
	unsigned long addr;
	psw_t psw;

psw.mask = mask;

asm volatile(
		"	larl	%0,1f\n"
		"	stg	%0,%O1+8(%R1)\n"
		"	lpswe	%1\n"
		"1:"
		: "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc");
}

/*
 * Extract current PSW mask
 */
static inline unsigned long __extract_psw(void)
{
	unsigned int reg1, reg2;

asm volatile("epsw %0,%1" : "=d" (reg1), "=a" (reg2));
	return (((unsigned long) reg1) << 32) | ((unsigned long) reg2);
}

static inline void local_mcck_enable(void)
{
	__load_psw_mask(__extract_psw() | PSW_MASK_MCHECK);
}

static inline void local_mcck_disable(void)
{
	__load_psw_mask(__extract_psw() & ~PSW_MASK_MCHECK);
}

/*
 * Rewind PSW instruction address by specified number of bytes.
 */
static inline unsigned long __rewind_psw(psw_t psw, unsigned long ilc)
{
	unsigned long mask;

mask = (psw.mask & PSW_MASK_EA) ? -1UL :
	       (psw.mask & PSW_MASK_BA) ? (1UL << 31) - 1 :
					  (1UL << 24) - 1;
	return (psw.addr - ilc) & mask;
}

/*
 * Function to stop a processor until the next interrupt occurs
 */
void enabled_wait(void);

/*
 * Function to drop a processor into disabled wait state
 */
static inline void __noreturn disabled_wait(unsigned long code)
{
	psw_t psw;

psw.mask = PSW_MASK_BASE | PSW_MASK_WAIT | PSW_MASK_BA | PSW_MASK_EA;
	psw.addr = code;
	__load_psw(psw);
	while (1);
}

/*
 * Basic Machine Check/Program Check Handler.
 */

extern void s390_base_mcck_handler(void);
extern void s390_base_pgm_handler(void);
extern void s390_base_ext_handler(void);

extern void (*s390_base_mcck_handler_fn)(void);
extern void (*s390_base_pgm_handler_fn)(void);
extern void (*s390_base_ext_handler_fn)(void);

#define ARCH_LOW_ADDRESS_LIMIT	0x7fffffffUL

extern int memcpy_real(void *, void *, size_t);
extern void memcpy_absolute(void *, void *, size_t);

#define mem_assign_absolute(dest, val) do {			\
	__typeof__(dest) __tmp = (val);				\
								\
	BUILD_BUG_ON(sizeof(__tmp) != sizeof(val));		\
	memcpy_absolute(&(dest), &__tmp, sizeof(__tmp));	\
} while (0)

extern int s390_isolate_bp(void);
extern int s390_isolate_bp_guest(void);

#endif /* __ASSEMBLY__ */

#endif /* __ASM_S390_PROCESSOR_H */