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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_S390X_COMPAT_H
#define _ASM_S390X_COMPAT_H
/*
 * Architecture specific compatibility types
 */
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/sched/task_stack.h>
#include <linux/thread_info.h>

#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p( \
				typeof(0?(__force t)0:0ULL), u64))

#define __SC_DELOUSE(t,v) ({ \
	BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \
	(__force t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \
})

#define PSW32_MASK_PER		0x40000000UL
#define PSW32_MASK_DAT		0x04000000UL
#define PSW32_MASK_IO		0x02000000UL
#define PSW32_MASK_EXT		0x01000000UL
#define PSW32_MASK_KEY		0x00F00000UL
#define PSW32_MASK_BASE		0x00080000UL	/* Always one */
#define PSW32_MASK_MCHECK	0x00040000UL
#define PSW32_MASK_WAIT		0x00020000UL
#define PSW32_MASK_PSTATE	0x00010000UL
#define PSW32_MASK_ASC		0x0000C000UL
#define PSW32_MASK_CC		0x00003000UL
#define PSW32_MASK_PM		0x00000f00UL
#define PSW32_MASK_RI		0x00000080UL

#define PSW32_MASK_USER		0x0000FF00UL

#define PSW32_ADDR_AMODE	0x80000000UL
#define PSW32_ADDR_INSN		0x7FFFFFFFUL

#define PSW32_DEFAULT_KEY	(((u32) PAGE_DEFAULT_ACC) << 20)

#define PSW32_ASC_PRIMARY	0x00000000UL
#define PSW32_ASC_ACCREG	0x00004000UL
#define PSW32_ASC_SECONDARY	0x00008000UL
#define PSW32_ASC_HOME		0x0000C000UL

#define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \
			 PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \
			 PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \
			 PSW32_ASC_PRIMARY)

#define COMPAT_USER_HZ		100
#define COMPAT_UTS_MACHINE	"s390\0\0\0\0"

typedef u32		compat_size_t;
typedef s32		compat_ssize_t;
typedef s32		compat_time_t;
typedef s32		compat_clock_t;
typedef s32		compat_pid_t;
typedef u16		__compat_uid_t;
typedef u16		__compat_gid_t;
typedef u32		__compat_uid32_t;
typedef u32		__compat_gid32_t;
typedef u16		compat_mode_t;
typedef u32		compat_ino_t;
typedef u16		compat_dev_t;
typedef s32		compat_off_t;
typedef s64		compat_loff_t;
typedef u16		compat_nlink_t;
typedef u16		compat_ipc_pid_t;
typedef s32		compat_daddr_t;
typedef u32		compat_caddr_t;
typedef __kernel_fsid_t	compat_fsid_t;
typedef s32		compat_key_t;
typedef s32		compat_timer_t;

typedef s32		compat_int_t;
typedef s32		compat_long_t;
typedef s64		compat_s64;
typedef u32		compat_uint_t;
typedef u32		compat_ulong_t;
typedef u64		compat_u64;
typedef u32		compat_uptr_t;

typedef struct {
	u32 mask;
	u32 addr;
} __aligned(8) psw_compat_t;

typedef struct {
	psw_compat_t psw;
	u32 gprs[NUM_GPRS];
	u32 acrs[NUM_ACRS];
	u32 orig_gpr2;
} s390_compat_regs;

typedef struct {
	u32 gprs_high[NUM_GPRS];
} s390_compat_regs_high;

struct compat_timespec {
	compat_time_t	tv_sec;
	s32		tv_nsec;
};

struct compat_timeval {
	compat_time_t	tv_sec;
	s32		tv_usec;
};

struct compat_stat {
	compat_dev_t	st_dev;
	u16		__pad1;
	compat_ino_t	st_ino;
	compat_mode_t	st_mode;
	compat_nlink_t	st_nlink;
	__compat_uid_t	st_uid;
	__compat_gid_t	st_gid;
	compat_dev_t	st_rdev;
	u16		__pad2;
	u32		st_size;
	u32		st_blksize;
	u32		st_blocks;
	u32		st_atime;
	u32		st_atime_nsec;
	u32		st_mtime;
	u32		st_mtime_nsec;
	u32		st_ctime;
	u32		st_ctime_nsec;
	u32		__unused4;
	u32		__unused5;
};

struct compat_flock {
	short		l_type;
	short		l_whence;
	compat_off_t	l_start;
	compat_off_t	l_len;
	compat_pid_t	l_pid;
};

#define F_GETLK64       12
#define F_SETLK64       13
#define F_SETLKW64      14    

struct compat_flock64 {
	short		l_type;
	short		l_whence;
	compat_loff_t	l_start;
	compat_loff_t	l_len;
	compat_pid_t	l_pid;
};

struct compat_statfs {
	u32		f_type;
	u32		f_bsize;
	u32		f_blocks;
	u32		f_bfree;
	u32		f_bavail;
	u32		f_files;
	u32		f_ffree;
	compat_fsid_t	f_fsid;
	u32		f_namelen;
	u32		f_frsize;
	u32		f_flags;
	u32		f_spare[4];
};

struct compat_statfs64 {
	u32		f_type;
	u32		f_bsize;
	u64		f_blocks;
	u64		f_bfree;
	u64		f_bavail;
	u64		f_files;
	u64		f_ffree;
	compat_fsid_t	f_fsid;
	u32		f_namelen;
	u32		f_frsize;
	u32		f_flags;
	u32		f_spare[4];
};

#define COMPAT_RLIM_INFINITY		0xffffffff

typedef u32		compat_old_sigset_t;	/* at least 32 bits */

#define _COMPAT_NSIG		64
#define _COMPAT_NSIG_BPW	32

typedef u32		compat_sigset_word;

typedef union compat_sigval {
	compat_int_t	sival_int;
	compat_uptr_t	sival_ptr;
} compat_sigval_t;

typedef struct compat_siginfo {
	int	si_signo;
	int	si_errno;
	int	si_code;

	union {
		int _pad[128/sizeof(int) - 3];

		/* kill() */
		struct {
			pid_t	_pid;	/* sender's pid */
			uid_t	_uid;	/* sender's uid */
		} _kill;

		/* POSIX.1b timers */
		struct {
			compat_timer_t _tid;		/* timer id */
			int _overrun;			/* overrun count */
			compat_sigval_t _sigval;	/* same as below */
			int _sys_private;	/* not to be passed to user */
		} _timer;

		/* POSIX.1b signals */
		struct {
			pid_t			_pid;	/* sender's pid */
			uid_t			_uid;	/* sender's uid */
			compat_sigval_t		_sigval;
		} _rt;

		/* SIGCHLD */
		struct {
			pid_t			_pid;	/* which child */
			uid_t			_uid;	/* sender's uid */
			int			_status;/* exit code */
			compat_clock_t		_utime;
			compat_clock_t		_stime;
		} _sigchld;

		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
		struct {
			__u32	_addr;	/* faulting insn/memory ref. - pointer */
		} _sigfault;

		/* SIGPOLL */
		struct {
			int	_band;	/* POLL_IN, POLL_OUT, POLL_MSG */
			int	_fd;
		} _sigpoll;
	} _sifields;
} compat_siginfo_t;

/*
 * How these fields are to be accessed.
 */
#define si_pid		_sifields._kill._pid
#define si_uid		_sifields._kill._uid
#define si_status	_sifields._sigchld._status
#define si_utime	_sifields._sigchld._utime
#define si_stime	_sifields._sigchld._stime
#define si_value	_sifields._rt._sigval
#define si_int		_sifields._rt._sigval.sival_int
#define si_ptr		_sifields._rt._sigval.sival_ptr
#define si_addr		_sifields._sigfault._addr
#define si_band		_sifields._sigpoll._band
#define si_fd		_sifields._sigpoll._fd
#define si_tid		_sifields._timer._tid
#define si_overrun	_sifields._timer._overrun

#define COMPAT_OFF_T_MAX	0x7fffffff

/*
 * A pointer passed in from user mode. This should not
 * be used for syscall parameters, just declare them
 * as pointers because the syscall entry code will have
 * appropriately converted them already.
 */

static inline void __user *compat_ptr(compat_uptr_t uptr)
{
	return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
}

static inline compat_uptr_t ptr_to_compat(void __user *uptr)
{
	return (u32)(unsigned long)uptr;
}

#ifdef CONFIG_COMPAT

static inline int is_compat_task(void)
{
	return test_thread_flag(TIF_31BIT);
}

static inline void __user *arch_compat_alloc_user_space(long len)
{
	unsigned long stack;

	stack = KSTK_ESP(current);
	if (is_compat_task())
		stack &= 0x7fffffffUL;
	return (void __user *) (stack - len);
}

#endif

struct compat_ipc64_perm {
	compat_key_t key;
	__compat_uid32_t uid;
	__compat_gid32_t gid;
	__compat_uid32_t cuid;
	__compat_gid32_t cgid;
	compat_mode_t mode;
	unsigned short __pad1;
	unsigned short seq;
	unsigned short __pad2;
	unsigned int __unused1;
	unsigned int __unused2;
};

struct compat_semid64_ds {
	struct compat_ipc64_perm sem_perm;
	compat_time_t  sem_otime;
	compat_ulong_t __pad1;
	compat_time_t  sem_ctime;
	compat_ulong_t __pad2;
	compat_ulong_t sem_nsems;
	compat_ulong_t __unused1;
	compat_ulong_t __unused2;
};

struct compat_msqid64_ds {
	struct compat_ipc64_perm msg_perm;
	compat_time_t   msg_stime;
	compat_ulong_t __pad1;
	compat_time_t   msg_rtime;
	compat_ulong_t __pad2;
	compat_time_t   msg_ctime;
	compat_ulong_t __pad3;
	compat_ulong_t msg_cbytes;
	compat_ulong_t msg_qnum;
	compat_ulong_t msg_qbytes;
	compat_pid_t   msg_lspid;
	compat_pid_t   msg_lrpid;
	compat_ulong_t __unused1;
	compat_ulong_t __unused2;
};

struct compat_shmid64_ds {
	struct compat_ipc64_perm shm_perm;
	compat_size_t  shm_segsz;
	compat_time_t  shm_atime;
	compat_ulong_t __pad1;
	compat_time_t  shm_dtime;
	compat_ulong_t __pad2;
	compat_time_t  shm_ctime;
	compat_ulong_t __pad3;
	compat_pid_t   shm_cpid;
	compat_pid_t   shm_lpid;
	compat_ulong_t shm_nattch;
	compat_ulong_t __unused1;
	compat_ulong_t __unused2;
};
#endif /* _ASM_S390X_COMPAT_H */

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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 1.17 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 2.09 KB 0644
gmap.h File 4.93 KB 0644
hardirq.h File 670 B 0644
hugetlb.h File 2.87 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 6.44 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
switch_to.h File 1.37 KB 0644
syscall.h File 2.63 KB 0644
sysinfo.h File 4.22 KB 0644
termios.h File 685 B 0644
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
unistd.h File 1.03 KB 0644
uprobes.h File 588 B 0644
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