arm64: dts: Revert "specify console via command line"
[linux/fpc-iii.git] / arch / powerpc / kernel / sys_ppc32.c
blobd36c6391eaf58844b815a75115bf7fc546c32d8c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls.
5 * Copyright (C) 2001 IBM
6 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
7 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
9 * These routines maintain argument size conversion between 32bit and 64bit
10 * environment.
13 #include <linux/kernel.h>
14 #include <linux/sched.h>
15 #include <linux/fs.h>
16 #include <linux/mm.h>
17 #include <linux/file.h>
18 #include <linux/signal.h>
19 #include <linux/resource.h>
20 #include <linux/times.h>
21 #include <linux/smp.h>
22 #include <linux/sem.h>
23 #include <linux/msg.h>
24 #include <linux/shm.h>
25 #include <linux/poll.h>
26 #include <linux/personality.h>
27 #include <linux/stat.h>
28 #include <linux/mman.h>
29 #include <linux/in.h>
30 #include <linux/syscalls.h>
31 #include <linux/unistd.h>
32 #include <linux/sysctl.h>
33 #include <linux/binfmts.h>
34 #include <linux/security.h>
35 #include <linux/compat.h>
36 #include <linux/ptrace.h>
37 #include <linux/elf.h>
38 #include <linux/ipc.h>
39 #include <linux/slab.h>
41 #include <asm/ptrace.h>
42 #include <asm/types.h>
43 #include <linux/uaccess.h>
44 #include <asm/unistd.h>
45 #include <asm/time.h>
46 #include <asm/mmu_context.h>
47 #include <asm/ppc-pci.h>
48 #include <asm/syscalls.h>
49 #include <asm/switch_to.h>
51 unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
52 unsigned long prot, unsigned long flags,
53 unsigned long fd, unsigned long pgoff)
55 /* This should remain 12 even if PAGE_SIZE changes */
56 return sys_mmap(addr, len, prot, flags, fd, pgoff << 12);
59 /*
60 * long long munging:
61 * The 32 bit ABI passes long longs in an odd even register pair.
64 compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
65 u32 reg6, u32 poshi, u32 poslo)
67 return ksys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
70 compat_ssize_t compat_sys_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count,
71 u32 reg6, u32 poshi, u32 poslo)
73 return ksys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
76 compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
78 return ksys_readahead(fd, ((loff_t)offhi << 32) | offlo, count);
81 asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4,
82 unsigned long high, unsigned long low)
84 return ksys_truncate(path, (high << 32) | low);
87 asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
88 u32 lenhi, u32 lenlo)
90 return ksys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
91 ((loff_t)lenhi << 32) | lenlo);
94 asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
95 unsigned long low)
97 return ksys_ftruncate(fd, (high << 32) | low);
100 long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
101 size_t len, int advice)
103 return ksys_fadvise64_64(fd, (u64)offset_high << 32 | offset_low, len,
104 advice);
107 asmlinkage long compat_sys_sync_file_range2(int fd, unsigned int flags,
108 unsigned offset_hi, unsigned offset_lo,
109 unsigned nbytes_hi, unsigned nbytes_lo)
111 loff_t offset = ((loff_t)offset_hi << 32) | offset_lo;
112 loff_t nbytes = ((loff_t)nbytes_hi << 32) | nbytes_lo;
114 return ksys_sync_file_range(fd, offset, nbytes, flags);