forked from Minki/linux
18aecc2b64
This support was partially present in the existing code (look for "__tilegx__" ifdefs) but with this change you can build a working kernel using the TILE-Gx toolchain and ARCH=tilegx. Most of these files are new, generally adding a foo_64.c file where previously there was just a foo_32.c file. The ARCH=tilegx directive redirects to arch/tile, not arch/tilegx, using the existing SRCARCH mechanism in the top-level Makefile. Changes to existing files: - <asm/bitops.h> and <asm/bitops_32.h> changed to factor the include of <asm-generic/bitops/non-atomic.h> in the common header. - <asm/compat.h> and arch/tile/kernel/compat.c changed to remove the "const" markers I had put on compat_sys_execve() when trying to match some recent similar changes to the non-compat execve. It turns out the compat version wasn't "upgraded" to use const. - <asm/opcode-tile_64.h> and <asm/opcode_constants_64.h> were previously included accidentally, with the 32-bit contents. Now they have the proper 64-bit contents. Finally, I had to hack the existing hacky drivers/input/input-compat.h to add yet another "#ifdef" for INPUT_COMPAT_TEST (same as x86_64). Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> [drivers/input]
268 lines
7.5 KiB
C
268 lines
7.5 KiB
C
/*
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* Copyright 2010 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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#ifndef _ASM_TILE_COMPAT_H
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#define _ASM_TILE_COMPAT_H
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/*
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* Architecture specific compatibility types
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*/
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#include <linux/types.h>
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#include <linux/sched.h>
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#define COMPAT_USER_HZ 100
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/* "long" and pointer-based types are different. */
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typedef s32 compat_long_t;
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typedef u32 compat_ulong_t;
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typedef u32 compat_size_t;
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typedef s32 compat_ssize_t;
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typedef s32 compat_off_t;
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typedef s32 compat_time_t;
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typedef s32 compat_clock_t;
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typedef u32 compat_ino_t;
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typedef u32 compat_caddr_t;
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typedef u32 compat_uptr_t;
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/* Many types are "int" or otherwise the same. */
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typedef __kernel_pid_t compat_pid_t;
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typedef __kernel_uid_t __compat_uid_t;
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typedef __kernel_gid_t __compat_gid_t;
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typedef __kernel_uid32_t __compat_uid32_t;
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typedef __kernel_uid32_t __compat_gid32_t;
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typedef __kernel_mode_t compat_mode_t;
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typedef __kernel_dev_t compat_dev_t;
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typedef __kernel_loff_t compat_loff_t;
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typedef __kernel_nlink_t compat_nlink_t;
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typedef __kernel_ipc_pid_t compat_ipc_pid_t;
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typedef __kernel_daddr_t compat_daddr_t;
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typedef __kernel_fsid_t compat_fsid_t;
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typedef __kernel_timer_t compat_timer_t;
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typedef __kernel_key_t compat_key_t;
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typedef int compat_int_t;
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typedef s64 compat_s64;
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typedef uint compat_uint_t;
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typedef u64 compat_u64;
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/* We use the same register dump format in 32-bit images. */
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typedef unsigned long compat_elf_greg_t;
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#define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
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typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
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struct compat_timespec {
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compat_time_t tv_sec;
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s32 tv_nsec;
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};
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struct compat_timeval {
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compat_time_t tv_sec;
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s32 tv_usec;
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};
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#define compat_stat stat
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#define compat_statfs statfs
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struct compat_sysctl {
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unsigned int name;
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int nlen;
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unsigned int oldval;
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unsigned int oldlenp;
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unsigned int newval;
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unsigned int newlen;
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unsigned int __unused[4];
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};
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struct compat_flock {
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short l_type;
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short l_whence;
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compat_off_t l_start;
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compat_off_t l_len;
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compat_pid_t l_pid;
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};
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#define F_GETLK64 12 /* using 'struct flock64' */
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#define F_SETLK64 13
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#define F_SETLKW64 14
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struct compat_flock64 {
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short l_type;
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short l_whence;
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compat_loff_t l_start;
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compat_loff_t l_len;
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compat_pid_t l_pid;
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};
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#define COMPAT_RLIM_INFINITY 0xffffffff
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#define _COMPAT_NSIG 64
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#define _COMPAT_NSIG_BPW 32
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typedef u32 compat_sigset_word;
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#define COMPAT_OFF_T_MAX 0x7fffffff
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#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
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struct compat_ipc64_perm {
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compat_key_t key;
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__compat_uid32_t uid;
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__compat_gid32_t gid;
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__compat_uid32_t cuid;
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__compat_gid32_t cgid;
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unsigned short mode;
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unsigned short __pad1;
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unsigned short seq;
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unsigned short __pad2;
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compat_ulong_t unused1;
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compat_ulong_t unused2;
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};
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struct compat_semid64_ds {
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struct compat_ipc64_perm sem_perm;
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compat_time_t sem_otime;
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compat_ulong_t __unused1;
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compat_time_t sem_ctime;
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compat_ulong_t __unused2;
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compat_ulong_t sem_nsems;
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compat_ulong_t __unused3;
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compat_ulong_t __unused4;
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};
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struct compat_msqid64_ds {
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struct compat_ipc64_perm msg_perm;
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compat_time_t msg_stime;
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compat_ulong_t __unused1;
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compat_time_t msg_rtime;
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compat_ulong_t __unused2;
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compat_time_t msg_ctime;
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compat_ulong_t __unused3;
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compat_ulong_t msg_cbytes;
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compat_ulong_t msg_qnum;
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compat_ulong_t msg_qbytes;
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compat_pid_t msg_lspid;
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compat_pid_t msg_lrpid;
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compat_ulong_t __unused4;
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compat_ulong_t __unused5;
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};
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struct compat_shmid64_ds {
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struct compat_ipc64_perm shm_perm;
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compat_size_t shm_segsz;
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compat_time_t shm_atime;
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compat_ulong_t __unused1;
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compat_time_t shm_dtime;
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compat_ulong_t __unused2;
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compat_time_t shm_ctime;
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compat_ulong_t __unused3;
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compat_pid_t shm_cpid;
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compat_pid_t shm_lpid;
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compat_ulong_t shm_nattch;
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compat_ulong_t __unused4;
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compat_ulong_t __unused5;
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};
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/*
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* A pointer passed in from user mode. This should not
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* be used for syscall parameters, just declare them
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* as pointers because the syscall entry code will have
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* appropriately converted them already.
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*/
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static inline void __user *compat_ptr(compat_uptr_t uptr)
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{
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return (void __user *)(long)(s32)uptr;
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}
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static inline compat_uptr_t ptr_to_compat(void __user *uptr)
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{
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return (u32)(unsigned long)uptr;
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}
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/* Sign-extend when storing a kernel pointer to a user's ptregs. */
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static inline unsigned long ptr_to_compat_reg(void __user *uptr)
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{
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return (long)(int)(long __force)uptr;
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}
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static inline void __user *arch_compat_alloc_user_space(long len)
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{
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struct pt_regs *regs = task_pt_regs(current);
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return (void __user *)regs->sp - len;
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}
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static inline int is_compat_task(void)
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{
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return current_thread_info()->status & TS_COMPAT;
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}
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extern int compat_setup_rt_frame(int sig, struct k_sigaction *ka,
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siginfo_t *info, sigset_t *set,
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struct pt_regs *regs);
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/* Compat syscalls. */
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struct compat_sigaction;
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struct compat_siginfo;
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struct compat_sigaltstack;
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long compat_sys_execve(const char __user *path,
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compat_uptr_t __user *argv,
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compat_uptr_t __user *envp, struct pt_regs *);
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long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
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struct compat_sigaction __user *oact,
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size_t sigsetsize);
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long compat_sys_rt_sigqueueinfo(int pid, int sig,
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struct compat_siginfo __user *uinfo);
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long compat_sys_rt_sigreturn(struct pt_regs *);
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long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
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struct compat_sigaltstack __user *uoss_ptr,
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struct pt_regs *);
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long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high);
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long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high);
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long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count,
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u32 dummy, u32 low, u32 high);
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long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count,
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u32 dummy, u32 low, u32 high);
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long compat_sys_lookup_dcookie(u32 low, u32 high, char __user *buf, size_t len);
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long compat_sys_sync_file_range2(int fd, unsigned int flags,
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u32 offset_lo, u32 offset_hi,
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u32 nbytes_lo, u32 nbytes_hi);
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long compat_sys_fallocate(int fd, int mode,
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u32 offset_lo, u32 offset_hi,
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u32 len_lo, u32 len_hi);
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long compat_sys_sched_rr_get_interval(compat_pid_t pid,
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struct compat_timespec __user *interval);
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/* Versions of compat functions that differ from generic Linux. */
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struct compat_msgbuf;
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long tile_compat_sys_msgsnd(int msqid,
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struct compat_msgbuf __user *msgp,
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size_t msgsz, int msgflg);
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long tile_compat_sys_msgrcv(int msqid,
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struct compat_msgbuf __user *msgp,
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size_t msgsz, long msgtyp, int msgflg);
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long tile_compat_sys_ptrace(compat_long_t request, compat_long_t pid,
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compat_long_t addr, compat_long_t data);
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/* Tilera Linux syscalls that don't have "compat" versions. */
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#define compat_sys_flush_cache sys_flush_cache
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/* These are the intvec_64.S trampolines. */
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long _compat_sys_execve(const char __user *path,
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const compat_uptr_t __user *argv,
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const compat_uptr_t __user *envp);
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long _compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
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struct compat_sigaltstack __user *uoss_ptr);
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long _compat_sys_rt_sigreturn(void);
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#endif /* _ASM_TILE_COMPAT_H */
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