arch: remove tile port

The Tile architecture port was added by Chris Metcalf in 2010, and
maintained until early 2018 when he orphaned it due to his departure
from Mellanox, and nobody else stepped up to maintain it. The product
line is still around in the form of the BlueField SoC, but no longer
uses the Tile architecture.

There are also still products for sale with Tile-GX SoCs, notably the
Mikrotik CCR router family. The products all use old (linux-3.3) kernels
with lots of patches and won't be upgraded by their manufacturers. There
have been efforts to port both OpenWRT and Debian to these, but both
projects have stalled and are very unlikely to be continued in the future.

Given that we are reasonably sure that nobody is still using the port
with an upstream kernel any more, it seems better to remove it now while
the port is in a good shape than to let it bitrot for a few years first.

Cc: Chris Metcalf <chris.d.metcalf@gmail.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: http://www.mellanox.com/page/npu_multicore_overview
Link: https://jenkins.debian.net/view/rebootstrap/job/rebootstrap_tilegx_gcc7/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 233 deletions

diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
deleted file mode 100644
index 769ff6ac0bf5..000000000000
--- a/arch/tile/include/asm/compat.h
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU General Public License
- *   as published by the Free Software Foundation, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
- */
-
-#ifndef _ASM_TILE_COMPAT_H
-#define _ASM_TILE_COMPAT_H
-
-/*
- * Architecture specific compatibility types
- */
-#include <linux/types.h>
-#include <linux/sched.h>
-
-#define COMPAT_USER_HZ	100
-
-/* "long" and pointer-based types are different. */
-typedef s32		compat_long_t;
-typedef u32		compat_ulong_t;
-typedef u32		compat_size_t;
-typedef s32		compat_ssize_t;
-typedef s32		compat_off_t;
-typedef s32		compat_time_t;
-typedef s32		compat_clock_t;
-typedef u32		compat_ino_t;
-typedef u32		compat_caddr_t;
-typedef	u32		compat_uptr_t;
-
-/* Many types are "int" or otherwise the same. */
-typedef __kernel_pid_t compat_pid_t;
-typedef __kernel_uid_t __compat_uid_t;
-typedef __kernel_gid_t __compat_gid_t;
-typedef __kernel_uid32_t __compat_uid32_t;
-typedef __kernel_uid32_t __compat_gid32_t;
-typedef __kernel_mode_t compat_mode_t;
-typedef __kernel_dev_t compat_dev_t;
-typedef __kernel_loff_t compat_loff_t;
-typedef __kernel_ipc_pid_t compat_ipc_pid_t;
-typedef __kernel_daddr_t compat_daddr_t;
-typedef __kernel_fsid_t	compat_fsid_t;
-typedef __kernel_timer_t compat_timer_t;
-typedef __kernel_key_t compat_key_t;
-typedef int compat_int_t;
-typedef s64 compat_s64;
-typedef uint compat_uint_t;
-typedef u64 compat_u64;
-
-/* We use the same register dump format in 32-bit images. */
-typedef unsigned long compat_elf_greg_t;
-#define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
-typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
-
-struct compat_timespec {
-	compat_time_t	tv_sec;
-	s32		tv_nsec;
-};
-
-struct compat_timeval {
-	compat_time_t	tv_sec;
-	s32		tv_usec;
-};
-
-#define compat_stat stat
-#define compat_statfs statfs
-
-struct compat_sysctl {
-	unsigned int	name;
-	int		nlen;
-	unsigned int	oldval;
-	unsigned int	oldlenp;
-	unsigned int	newval;
-	unsigned int	newlen;
-	unsigned int	__unused[4];
-};
-
-
-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	/*  using 'struct flock64' */
-#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;
-};
-
-#define COMPAT_RLIM_INFINITY		0xffffffff
-
-#define _COMPAT_NSIG		64
-#define _COMPAT_NSIG_BPW	32
-
-typedef u32               compat_sigset_word;
-
-#define COMPAT_OFF_T_MAX	0x7fffffff
-
-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 mode;
-	unsigned short __pad1;
-	unsigned short seq;
-	unsigned short __pad2;
-	compat_ulong_t unused1;
-	compat_ulong_t unused2;
-};
-
-struct compat_semid64_ds {
-	struct compat_ipc64_perm sem_perm;
-	compat_time_t  sem_otime;
-	compat_ulong_t __unused1;
-	compat_time_t  sem_ctime;
-	compat_ulong_t __unused2;
-	compat_ulong_t sem_nsems;
-	compat_ulong_t __unused3;
-	compat_ulong_t __unused4;
-};
-
-struct compat_msqid64_ds {
-	struct compat_ipc64_perm msg_perm;
-	compat_time_t  msg_stime;
-	compat_ulong_t __unused1;
-	compat_time_t  msg_rtime;
-	compat_ulong_t __unused2;
-	compat_time_t  msg_ctime;
-	compat_ulong_t __unused3;
-	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 __unused4;
-	compat_ulong_t __unused5;
-};
-
-struct compat_shmid64_ds {
-	struct compat_ipc64_perm shm_perm;
-	compat_size_t  shm_segsz;
-	compat_time_t  shm_atime;
-	compat_ulong_t __unused1;
-	compat_time_t  shm_dtime;
-	compat_ulong_t __unused2;
-	compat_time_t  shm_ctime;
-	compat_ulong_t __unused3;
-	compat_pid_t   shm_cpid;
-	compat_pid_t   shm_lpid;
-	compat_ulong_t shm_nattch;
-	compat_ulong_t __unused4;
-	compat_ulong_t __unused5;
-};
-
-/*
- * 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 *)(long)(s32)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
-	return (u32)(unsigned long)uptr;
-}
-
-/* Sign-extend when storing a kernel pointer to a user's ptregs. */
-static inline unsigned long ptr_to_compat_reg(void __user *uptr)
-{
-	return (long)(int)(long __force)uptr;
-}
-
-static inline void __user *arch_compat_alloc_user_space(long len)
-{
-	struct pt_regs *regs = task_pt_regs(current);
-	return (void __user *)regs->sp - len;
-}
-
-static inline int is_compat_task(void)
-{
-	return current_thread_info()->status & TS_COMPAT;
-}
-
-extern int compat_setup_rt_frame(struct ksignal *ksig, sigset_t *set,
-				 struct pt_regs *regs);
-
-/* Compat syscalls. */
-struct compat_siginfo;
-struct compat_sigaltstack;
-long compat_sys_rt_sigreturn(void);
-long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high);
-long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high);
-long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count,
-			u32 dummy, u32 low, u32 high);
-long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count,
-			 u32 dummy, u32 low, u32 high);
-long compat_sys_sync_file_range2(int fd, unsigned int flags,
-				 u32 offset_lo, u32 offset_hi,
-				 u32 nbytes_lo, u32 nbytes_hi);
-long compat_sys_fallocate(int fd, int mode,
-			  u32 offset_lo, u32 offset_hi,
-			  u32 len_lo, u32 len_hi);
-long compat_sys_llseek(unsigned int fd, unsigned int offset_high,
-		       unsigned int offset_low, loff_t __user * result,
-		       unsigned int origin);
-
-/* Assembly trampoline to avoid clobbering r0. */
-long _compat_sys_rt_sigreturn(void);
-
-#endif /* _ASM_TILE_COMPAT_H */