v4.19.13 snapshot.
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
new file mode 100644
index 0000000..4eb51d2
--- /dev/null
+++ b/arch/sparc/include/asm/compat.h
@@ -0,0 +1,251 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_SPARC64_COMPAT_H
+#define _ASM_SPARC64_COMPAT_H
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/types.h>
+
+#define COMPAT_USER_HZ 100
+#define COMPAT_UTS_MACHINE "sparc\0\0"
+
+typedef u32 compat_size_t;
+typedef s32 compat_ssize_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 s16 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;
+
+struct compat_stat {
+ compat_dev_t st_dev;
+ 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;
+ compat_off_t st_size;
+ compat_time_t st_atime;
+ compat_ulong_t st_atime_nsec;
+ compat_time_t st_mtime;
+ compat_ulong_t st_mtime_nsec;
+ compat_time_t st_ctime;
+ compat_ulong_t st_ctime_nsec;
+ compat_off_t st_blksize;
+ compat_off_t st_blocks;
+ u32 __unused4[2];
+};
+
+struct compat_stat64 {
+ unsigned long long st_dev;
+
+ unsigned long long st_ino;
+
+ unsigned int st_mode;
+ unsigned int st_nlink;
+
+ unsigned int st_uid;
+ unsigned int st_gid;
+
+ unsigned long long st_rdev;
+
+ unsigned char __pad3[8];
+
+ long long st_size;
+ unsigned int st_blksize;
+
+ unsigned char __pad4[8];
+ unsigned int st_blocks;
+
+ unsigned int st_atime;
+ unsigned int st_atime_nsec;
+
+ unsigned int st_mtime;
+ unsigned int st_mtime_nsec;
+
+ unsigned int st_ctime;
+ unsigned int st_ctime_nsec;
+
+ unsigned int __unused4;
+ unsigned int __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;
+ short __unused;
+};
+
+#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;
+ short __unused;
+};
+
+struct compat_statfs {
+ int f_type;
+ int f_bsize;
+ int f_blocks;
+ int f_bfree;
+ int f_bavail;
+ int f_files;
+ int f_ffree;
+ compat_fsid_t f_fsid;
+ int f_namelen; /* SunOS ignores this field. */
+ int f_frsize;
+ int f_flags;
+ int f_spare[4];
+};
+
+#define COMPAT_RLIM_INFINITY 0x7fffffff
+
+typedef u32 compat_old_sigset_t;
+
+#define _COMPAT_NSIG 64
+#define _COMPAT_NSIG_BPW 32
+
+typedef u32 compat_sigset_word;
+
+#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;
+}
+
+static inline compat_uptr_t ptr_to_compat(void __user *uptr)
+{
+ return (u32)(unsigned long)uptr;
+}
+
+#ifdef CONFIG_COMPAT
+static inline void __user *arch_compat_alloc_user_space(long len)
+{
+ struct pt_regs *regs = current_thread_info()->kregs;
+ unsigned long usp = regs->u_regs[UREG_I6];
+
+ if (test_thread_64bit_stack(usp))
+ usp += STACK_BIAS;
+
+ if (test_thread_flag(TIF_32BIT))
+ usp &= 0xffffffffUL;
+
+ usp -= len;
+ usp &= ~0x7UL;
+
+ return (void __user *) usp;
+}
+#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;
+ unsigned short __pad1;
+ compat_mode_t mode;
+ unsigned short __pad2;
+ unsigned short seq;
+ unsigned long __unused1; /* yes they really are 64bit pads */
+ unsigned long __unused2;
+};
+
+struct compat_semid64_ds {
+ struct compat_ipc64_perm sem_perm;
+ unsigned int sem_otime_high;
+ unsigned int sem_otime;
+ unsigned int sem_ctime_high;
+ unsigned int sem_ctime;
+ u32 sem_nsems;
+ u32 __unused1;
+ u32 __unused2;
+};
+
+struct compat_msqid64_ds {
+ struct compat_ipc64_perm msg_perm;
+ unsigned int msg_stime_high;
+ unsigned int msg_stime;
+ unsigned int msg_rtime_high;
+ unsigned int msg_rtime;
+ unsigned int msg_ctime_high;
+ unsigned int msg_ctime;
+ unsigned int msg_cbytes;
+ unsigned int msg_qnum;
+ unsigned int msg_qbytes;
+ compat_pid_t msg_lspid;
+ compat_pid_t msg_lrpid;
+ unsigned int __unused1;
+ unsigned int __unused2;
+};
+
+struct compat_shmid64_ds {
+ struct compat_ipc64_perm shm_perm;
+ unsigned int shm_atime_high;
+ unsigned int shm_atime;
+ unsigned int shm_dtime_high;
+ unsigned int shm_dtime;
+ unsigned int shm_ctime_high;
+ unsigned int shm_ctime;
+ compat_size_t shm_segsz;
+ compat_pid_t shm_cpid;
+ compat_pid_t shm_lpid;
+ unsigned int shm_nattch;
+ unsigned int __unused1;
+ unsigned int __unused2;
+};
+
+#ifdef CONFIG_COMPAT
+static inline int is_compat_task(void)
+{
+ return test_thread_flag(TIF_32BIT);
+}
+
+static inline bool in_compat_syscall(void)
+{
+ /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
+ return pt_regs_trap_type(current_pt_regs()) == 0x110;
+}
+#define in_compat_syscall in_compat_syscall
+#endif
+
+#endif /* _ASM_SPARC64_COMPAT_H */