Merge tag 'mips_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Paul Burton:
 "Here's the main MIPS pull for Linux 4.21. Core architecture changes
  include:

   - Syscall tables & definitions for unistd.h are now generated by
     scripts, providing greater consistency with other architectures &
     making it easier to add new syscalls.

   - Support for building kernels with no floating point support, upon
     which any userland attempting to use floating point instructions
     will receive a SIGILL. Mostly useful to shrink the kernel & as
     preparation for nanoMIPS support which does not yet include FP.

   - MIPS SIMD Architecture (MSA) vector register context is now exposed
     by ptrace via a new NT_MIPS_MSA regset.

   - ASIDs are now stored as 64b values even for MIPS32 kernels,
     expanding the ASID version field sufficiently that we don't need to
     worry about overflow & avoiding rare issues with reused ASIDs that
     have been observed in the wild.

   - The branch delay slot "emulation" page is now mapped without write
     permission for the user, preventing its use as a nice location for
     attacks to execute malicious code from.

   - Support for ioremap_prot(), primarily to allow gdb or other ptrace
     users the ability to view their tracee's memory using the same
     cache coherency attribute.

   - Optimizations to more cpu_has_* macros, allowing more to be
     compile-time constant where possible.

   - Enable building the whole kernel with UBSAN instrumentation.

   - Enable building the kernel with link-time dead code & data
     elimination.

  Platform specific changes include:

   - The Boston board gains a workaround for DMA prefetching issues with
     the EG20T Platform Controller Hub that it uses.

   - Cleanups to Cavium Octeon code removing about 20k lines of
     redundant code, mostly unused or duplicate register definitions in
     headers.

   - defconfig updates for the DECstation machines, including new
     defconfigs for r4k & 64b machines.

   - Further work on Loongson 3 support.

   - DMA fixes for SiByte machines"

* tag 'mips_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (95 commits)
  MIPS: math-emu: Write-protect delay slot emulation pages
  MIPS: Remove struct mm_context_t fp_mode_switching field
  mips: generate uapi header and system call table files
  mips: add system call table generation support
  mips: remove syscall table entries
  mips: add +1 to __NR_syscalls in uapi header
  mips: rename scall64-64.S to scall64-n64.S
  mips: remove unused macros
  mips: add __NR_syscalls along with __NR_Linux_syscalls
  MIPS: Expand MIPS32 ASIDs to 64 bits
  MIPS: OCTEON: delete redundant register definitions
  MIPS: OCTEON: cvmx_gmxx_inf_mode: use oldest forward compatible definition
  MIPS: OCTEON: cvmx_mio_fus_dat3: use oldest forward compatible definition
  MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition
  MIPS: OCTEON: octeon-usb: use common gpio_bit definition
  MIPS: OCTEON: enable all OCTEON drivers in defconfig
  mips: annotate implicit fall throughs
  MIPS: Hardcode cpu_has_mips* where target ISA allows
  MIPS: MT: Remove norps command line parameter
  MIPS: Only include mmzone.h when CONFIG_NEED_MULTIPLE_NODES=y
  ...

1 files changed, 5 insertions, 336 deletions

diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index c65eaacc1abf..c761ddfed9e6 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -33,7 +33,7 @@ NESTED(handle_sysn32, PT_SIZE, sp)
 #endif
 
 	dsubu	t0, v0, __NR_N32_Linux	# check syscall number
-	sltiu	t0, t0, __NR_N32_Linux_syscalls + 1
+	sltiu	t0, t0, __NR_N32_Linux_syscalls
 
 #ifndef CONFIG_MIPS32_O32
 	ld	t1, PT_EPC(sp)		# skip syscall on return
@@ -87,7 +87,7 @@ n32_syscall_trace_entry:
 	ld	a5, PT_R9(sp)
 
 	dsubu	t2, v0, __NR_N32_Linux	# check (new) syscall number
-	sltiu   t0, t2, __NR_N32_Linux_syscalls + 1
+	sltiu   t0, t2, __NR_N32_Linux_syscalls
 	beqz	t0, not_n32_scall
 
 	j	syscall_common
@@ -101,339 +101,8 @@ not_n32_scall:
 
 	END(handle_sysn32)
 
+#define __SYSCALL(nr, entry, nargs) PTR entry
 	.type	sysn32_call_table, @object
 EXPORT(sysn32_call_table)
-	PTR	sys_read			/* 6000 */
-	PTR	sys_write
-	PTR	sys_open
-	PTR	sys_close
-	PTR	sys_newstat
-	PTR	sys_newfstat			/* 6005 */
-	PTR	sys_newlstat
-	PTR	sys_poll
-	PTR	sys_lseek
-	PTR	sys_mips_mmap
-	PTR	sys_mprotect			/* 6010 */
-	PTR	sys_munmap
-	PTR	sys_brk
-	PTR	compat_sys_rt_sigaction
-	PTR	compat_sys_rt_sigprocmask
-	PTR	compat_sys_ioctl		/* 6015 */
-	PTR	sys_pread64
-	PTR	sys_pwrite64
-	PTR	compat_sys_readv
-	PTR	compat_sys_writev
-	PTR	sys_access			/* 6020 */
-	PTR	sysm_pipe
-	PTR	compat_sys_select
-	PTR	sys_sched_yield
-	PTR	sys_mremap
-	PTR	sys_msync			/* 6025 */
-	PTR	sys_mincore
-	PTR	sys_madvise
-	PTR	sys_shmget
-	PTR	sys_shmat
-	PTR	compat_sys_shmctl			/* 6030 */
-	PTR	sys_dup
-	PTR	sys_dup2
-	PTR	sys_pause
-	PTR	compat_sys_nanosleep
-	PTR	compat_sys_getitimer		/* 6035 */
-	PTR	compat_sys_setitimer
-	PTR	sys_alarm
-	PTR	sys_getpid
-	PTR	compat_sys_sendfile
-	PTR	sys_socket			/* 6040 */
-	PTR	sys_connect
-	PTR	sys_accept
-	PTR	sys_sendto
-	PTR	compat_sys_recvfrom
-	PTR	compat_sys_sendmsg		/* 6045 */
-	PTR	compat_sys_recvmsg
-	PTR	sys_shutdown
-	PTR	sys_bind
-	PTR	sys_listen
-	PTR	sys_getsockname			/* 6050 */
-	PTR	sys_getpeername
-	PTR	sys_socketpair
-	PTR	compat_sys_setsockopt
-	PTR	compat_sys_getsockopt
-	PTR	__sys_clone			/* 6055 */
-	PTR	__sys_fork
-	PTR	compat_sys_execve
-	PTR	sys_exit
-	PTR	compat_sys_wait4
-	PTR	sys_kill			/* 6060 */
-	PTR	sys_newuname
-	PTR	sys_semget
-	PTR	sys_semop
-	PTR	compat_sys_semctl
-	PTR	sys_shmdt			/* 6065 */
-	PTR	sys_msgget
-	PTR	compat_sys_msgsnd
-	PTR	compat_sys_msgrcv
-	PTR	compat_sys_msgctl
-	PTR	compat_sys_fcntl		/* 6070 */
-	PTR	sys_flock
-	PTR	sys_fsync
-	PTR	sys_fdatasync
-	PTR	sys_truncate
-	PTR	sys_ftruncate			/* 6075 */
-	PTR	compat_sys_getdents
-	PTR	sys_getcwd
-	PTR	sys_chdir
-	PTR	sys_fchdir
-	PTR	sys_rename			/* 6080 */
-	PTR	sys_mkdir
-	PTR	sys_rmdir
-	PTR	sys_creat
-	PTR	sys_link
-	PTR	sys_unlink			/* 6085 */
-	PTR	sys_symlink
-	PTR	sys_readlink
-	PTR	sys_chmod
-	PTR	sys_fchmod
-	PTR	sys_chown			/* 6090 */
-	PTR	sys_fchown
-	PTR	sys_lchown
-	PTR	sys_umask
-	PTR	compat_sys_gettimeofday
-	PTR	compat_sys_getrlimit		/* 6095 */
-	PTR	compat_sys_getrusage
-	PTR	compat_sys_sysinfo
-	PTR	compat_sys_times
-	PTR	compat_sys_ptrace
-	PTR	sys_getuid			/* 6100 */
-	PTR	sys_syslog
-	PTR	sys_getgid
-	PTR	sys_setuid
-	PTR	sys_setgid
-	PTR	sys_geteuid			/* 6105 */
-	PTR	sys_getegid
-	PTR	sys_setpgid
-	PTR	sys_getppid
-	PTR	sys_getpgrp
-	PTR	sys_setsid			/* 6110 */
-	PTR	sys_setreuid
-	PTR	sys_setregid
-	PTR	sys_getgroups
-	PTR	sys_setgroups
-	PTR	sys_setresuid			/* 6115 */
-	PTR	sys_getresuid
-	PTR	sys_setresgid
-	PTR	sys_getresgid
-	PTR	sys_getpgid
-	PTR	sys_setfsuid			/* 6120 */
-	PTR	sys_setfsgid
-	PTR	sys_getsid
-	PTR	sys_capget
-	PTR	sys_capset
-	PTR	compat_sys_rt_sigpending	/* 6125 */
-	PTR	compat_sys_rt_sigtimedwait
-	PTR	compat_sys_rt_sigqueueinfo
-	PTR	compat_sys_rt_sigsuspend
-	PTR	compat_sys_sigaltstack
-	PTR	compat_sys_utime		/* 6130 */
-	PTR	sys_mknod
-	PTR	sys_32_personality
-	PTR	compat_sys_ustat
-	PTR	compat_sys_statfs
-	PTR	compat_sys_fstatfs		/* 6135 */
-	PTR	sys_sysfs
-	PTR	sys_getpriority
-	PTR	sys_setpriority
-	PTR	sys_sched_setparam
-	PTR	sys_sched_getparam		/* 6140 */
-	PTR	sys_sched_setscheduler
-	PTR	sys_sched_getscheduler
-	PTR	sys_sched_get_priority_max
-	PTR	sys_sched_get_priority_min
-	PTR	compat_sys_sched_rr_get_interval	/* 6145 */
-	PTR	sys_mlock
-	PTR	sys_munlock
-	PTR	sys_mlockall
-	PTR	sys_munlockall
-	PTR	sys_vhangup			/* 6150 */
-	PTR	sys_pivot_root
-	PTR	compat_sys_sysctl
-	PTR	sys_prctl
-	PTR	compat_sys_adjtimex
-	PTR	compat_sys_setrlimit		/* 6155 */
-	PTR	sys_chroot
-	PTR	sys_sync
-	PTR	sys_acct
-	PTR	compat_sys_settimeofday
-	PTR	compat_sys_mount		/* 6160 */
-	PTR	sys_umount
-	PTR	sys_swapon
-	PTR	sys_swapoff
-	PTR	sys_reboot
-	PTR	sys_sethostname			/* 6165 */
-	PTR	sys_setdomainname
-	PTR	sys_ni_syscall			/* was create_module */
-	PTR	sys_init_module
-	PTR	sys_delete_module
-	PTR	sys_ni_syscall			/* 6170, was get_kernel_syms */
-	PTR	sys_ni_syscall			/* was query_module */
-	PTR	sys_quotactl
-	PTR	sys_ni_syscall			/* was nfsservctl */
-	PTR	sys_ni_syscall			/* res. for getpmsg */
-	PTR	sys_ni_syscall			/* 6175	 for putpmsg */
-	PTR	sys_ni_syscall			/* res. for afs_syscall */
-	PTR	sys_ni_syscall			/* res. for security */
-	PTR	sys_gettid
-	PTR	sys_readahead
-	PTR	sys_setxattr			/* 6180 */
-	PTR	sys_lsetxattr
-	PTR	sys_fsetxattr
-	PTR	sys_getxattr
-	PTR	sys_lgetxattr
-	PTR	sys_fgetxattr			/* 6185 */
-	PTR	sys_listxattr
-	PTR	sys_llistxattr
-	PTR	sys_flistxattr
-	PTR	sys_removexattr
-	PTR	sys_lremovexattr		/* 6190 */
-	PTR	sys_fremovexattr
-	PTR	sys_tkill
-	PTR	sys_ni_syscall
-	PTR	compat_sys_futex
-	PTR	compat_sys_sched_setaffinity	/* 6195 */
-	PTR	compat_sys_sched_getaffinity
-	PTR	sys_cacheflush
-	PTR	sys_cachectl
-	PTR	__sys_sysmips
-	PTR	compat_sys_io_setup			/* 6200 */
-	PTR	sys_io_destroy
-	PTR	compat_sys_io_getevents
-	PTR	compat_sys_io_submit
-	PTR	sys_io_cancel
-	PTR	sys_exit_group			/* 6205 */
-	PTR	sys_lookup_dcookie
-	PTR	sys_epoll_create
-	PTR	sys_epoll_ctl
-	PTR	sys_epoll_wait
-	PTR	sys_remap_file_pages		/* 6210 */
-	PTR	sysn32_rt_sigreturn
-	PTR	compat_sys_fcntl64
-	PTR	sys_set_tid_address
-	PTR	sys_restart_syscall
-	PTR	compat_sys_semtimedop			/* 6215 */
-	PTR	sys_fadvise64_64
-	PTR	compat_sys_statfs64
-	PTR	compat_sys_fstatfs64
-	PTR	sys_sendfile64
-	PTR	compat_sys_timer_create		/* 6220 */
-	PTR	compat_sys_timer_settime
-	PTR	compat_sys_timer_gettime
-	PTR	sys_timer_getoverrun
-	PTR	sys_timer_delete
-	PTR	compat_sys_clock_settime		/* 6225 */
-	PTR	compat_sys_clock_gettime
-	PTR	compat_sys_clock_getres
-	PTR	compat_sys_clock_nanosleep
-	PTR	sys_tgkill
-	PTR	compat_sys_utimes		/* 6230 */
-	PTR	compat_sys_mbind
-	PTR	compat_sys_get_mempolicy
-	PTR	compat_sys_set_mempolicy
-	PTR	compat_sys_mq_open
-	PTR	sys_mq_unlink			/* 6235 */
-	PTR	compat_sys_mq_timedsend
-	PTR	compat_sys_mq_timedreceive
-	PTR	compat_sys_mq_notify
-	PTR	compat_sys_mq_getsetattr
-	PTR	sys_ni_syscall			/* 6240, sys_vserver */
-	PTR	compat_sys_waitid
-	PTR	sys_ni_syscall			/* available, was setaltroot */
-	PTR	sys_add_key
-	PTR	sys_request_key
-	PTR	compat_sys_keyctl		/* 6245 */
-	PTR	sys_set_thread_area
-	PTR	sys_inotify_init
-	PTR	sys_inotify_add_watch
-	PTR	sys_inotify_rm_watch
-	PTR	compat_sys_migrate_pages	/* 6250 */
-	PTR	sys_openat
-	PTR	sys_mkdirat
-	PTR	sys_mknodat
-	PTR	sys_fchownat
-	PTR	compat_sys_futimesat		/* 6255 */
-	PTR	sys_newfstatat
-	PTR	sys_unlinkat
-	PTR	sys_renameat
-	PTR	sys_linkat
-	PTR	sys_symlinkat			/* 6260 */
-	PTR	sys_readlinkat
-	PTR	sys_fchmodat
-	PTR	sys_faccessat
-	PTR	compat_sys_pselect6
-	PTR	compat_sys_ppoll		/* 6265 */
-	PTR	sys_unshare
-	PTR	sys_splice
-	PTR	sys_sync_file_range
-	PTR	sys_tee
-	PTR	compat_sys_vmsplice		/* 6270 */
-	PTR	compat_sys_move_pages
-	PTR	compat_sys_set_robust_list
-	PTR	compat_sys_get_robust_list
-	PTR	compat_sys_kexec_load
-	PTR	sys_getcpu			/* 6275 */
-	PTR	compat_sys_epoll_pwait
-	PTR	sys_ioprio_set
-	PTR	sys_ioprio_get
-	PTR	compat_sys_utimensat
-	PTR	compat_sys_signalfd		/* 6280 */
-	PTR	sys_ni_syscall			/* was timerfd */
-	PTR	sys_eventfd
-	PTR	sys_fallocate
-	PTR	sys_timerfd_create
-	PTR	compat_sys_timerfd_gettime	/* 6285 */
-	PTR	compat_sys_timerfd_settime
-	PTR	compat_sys_signalfd4
-	PTR	sys_eventfd2
-	PTR	sys_epoll_create1
-	PTR	sys_dup3			/* 6290 */
-	PTR	sys_pipe2
-	PTR	sys_inotify_init1
-	PTR	compat_sys_preadv
-	PTR	compat_sys_pwritev
-	PTR	compat_sys_rt_tgsigqueueinfo	/* 6295 */
-	PTR	sys_perf_event_open
-	PTR	sys_accept4
-	PTR	compat_sys_recvmmsg
-	PTR	sys_getdents64
-	PTR	sys_fanotify_init		/* 6300 */
-	PTR	sys_fanotify_mark
-	PTR	sys_prlimit64
-	PTR	sys_name_to_handle_at
-	PTR	sys_open_by_handle_at
-	PTR	compat_sys_clock_adjtime	/* 6305 */
-	PTR	sys_syncfs
-	PTR	compat_sys_sendmmsg
-	PTR	sys_setns
-	PTR	compat_sys_process_vm_readv
-	PTR	compat_sys_process_vm_writev	/* 6310 */
-	PTR	sys_kcmp
-	PTR	sys_finit_module
-	PTR	sys_sched_setattr
-	PTR	sys_sched_getattr
-	PTR	sys_renameat2			/* 6315 */
-	PTR	sys_seccomp
-	PTR	sys_getrandom
-	PTR	sys_memfd_create
-	PTR	sys_bpf
-	PTR	compat_sys_execveat		/* 6320 */
-	PTR	sys_userfaultfd
-	PTR	sys_membarrier
-	PTR	sys_mlock2
-	PTR	sys_copy_file_range
-	PTR	compat_sys_preadv2		/* 6325 */
-	PTR	compat_sys_pwritev2
-	PTR	sys_pkey_mprotect
-	PTR	sys_pkey_alloc
-	PTR	sys_pkey_free
-	PTR	sys_statx			/* 6330 */
-	PTR	sys_rseq
-	PTR	compat_sys_io_pgetevents
-	.size	sysn32_call_table,.-sysn32_call_table
+#include <asm/syscall_table_64_n32.h>
+#undef __SYSCALL