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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_POWERPC_SYSCALLS_H
#define __ASM_POWERPC_SYSCALLS_H
#ifdef __KERNEL__
#include <linux/compiler.h>
#include <linux/linkage.h>
#include <linux/types.h>
#include <linux/compat.h>
#include <asm/syscall.h>
#ifdef CONFIG_PPC64
#include <asm/syscalls_32.h>
#endif
#include <asm/unistd.h>
#include <asm/ucontext.h>
#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
long sys_ni_syscall(void);
#else
long sys_ni_syscall(const struct pt_regs *regs);
#endif
struct rtas_args;
/*
* long long munging:
* The 32 bit ABI passes long longs in an odd even register pair.
* High and low parts are swapped depending on endian mode,
* so define a macro (similar to mips linux32) to handle that.
*/
#ifdef __LITTLE_ENDIAN__
#define merge_64(low, high) (((u64)high << 32) | low)
#else
#define merge_64(high, low) (((u64)high << 32) | low)
#endif
/*
* PowerPC architecture-specific syscalls
*/
#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
long sys_rtas(struct rtas_args __user *uargs);
#ifdef CONFIG_PPC64
long sys_ppc64_personality(unsigned long personality);
#ifdef CONFIG_COMPAT
long compat_sys_ppc64_personality(unsigned long personality);
#endif /* CONFIG_COMPAT */
#endif /* CONFIG_PPC64 */
long sys_swapcontext(struct ucontext __user *old_ctx,
struct ucontext __user *new_ctx, long ctx_size);
long sys_mmap(unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, off_t offset);
long sys_mmap2(unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff);
long sys_switch_endian(void);
#ifdef CONFIG_PPC32
long sys_sigreturn(void);
long sys_debug_setcontext(struct ucontext __user *ctx, int ndbg,
struct sig_dbg_op __user *dbg);
#endif
long sys_rt_sigreturn(void);
long sys_subpage_prot(unsigned long addr,
unsigned long len, u32 __user *map);
#ifdef CONFIG_COMPAT
long compat_sys_swapcontext(struct ucontext32 __user *old_ctx,
struct ucontext32 __user *new_ctx,
int ctx_size);
long compat_sys_old_getrlimit(unsigned int resource,
struct compat_rlimit __user *rlim);
long compat_sys_sigreturn(void);
long compat_sys_rt_sigreturn(void);
#endif /* CONFIG_COMPAT */
/*
* Architecture specific signatures required by long long munging:
* The 32 bit ABI passes long longs in an odd even register pair.
* The following signatures provide a machine long parameter for
* each register that will be supplied. The implementation is
* responsible for combining parameter pairs.
*/
#ifdef CONFIG_PPC32
long sys_ppc_pread64(unsigned int fd,
char __user *ubuf, compat_size_t count,
u32 reg6, u32 pos1, u32 pos2);
long sys_ppc_pwrite64(unsigned int fd,
const char __user *ubuf, compat_size_t count,
u32 reg6, u32 pos1, u32 pos2);
long sys_ppc_readahead(int fd, u32 r4,
u32 offset1, u32 offset2, u32 count);
long sys_ppc_truncate64(const char __user *path, u32 reg4,
unsigned long len1, unsigned long len2);
long sys_ppc_ftruncate64(unsigned int fd, u32 reg4,
unsigned long len1, unsigned long len2);
long sys_ppc32_fadvise64(int fd, u32 unused, u32 offset1, u32 offset2,
size_t len, int advice);
#endif
#ifdef CONFIG_COMPAT
long compat_sys_mmap2(unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff);
long compat_sys_ppc_pread64(unsigned int fd,
char __user *ubuf, compat_size_t count,
u32 reg6, u32 pos1, u32 pos2);
long compat_sys_ppc_pwrite64(unsigned int fd,
const char __user *ubuf, compat_size_t count,
u32 reg6, u32 pos1, u32 pos2);
long compat_sys_ppc_readahead(int fd, u32 r4,
u32 offset1, u32 offset2, u32 count);
long compat_sys_ppc_truncate64(const char __user *path, u32 reg4,
unsigned long len1, unsigned long len2);
long compat_sys_ppc_ftruncate64(unsigned int fd, u32 reg4,
unsigned long len1, unsigned long len2);
long compat_sys_ppc32_fadvise64(int fd, u32 unused, u32 offset1, u32 offset2,
size_t len, int advice);
long compat_sys_ppc_sync_file_range2(int fd, unsigned int flags,
unsigned int offset1,
unsigned int offset2,
unsigned int nbytes1,
unsigned int nbytes2);
#endif /* CONFIG_COMPAT */
#if defined(CONFIG_PPC32) || defined(CONFIG_COMPAT)
long sys_ppc_fadvise64_64(int fd, int advice,
u32 offset_high, u32 offset_low,
u32 len_high, u32 len_low);
#endif
#else
#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native)
#define __SYSCALL(nr, entry) \
long entry(const struct pt_regs *regs);
#ifdef CONFIG_PPC64
#include <asm/syscall_table_64.h>
#else
#include <asm/syscall_table_32.h>
#endif /* CONFIG_PPC64 */
#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
#endif /* __KERNEL__ */
#endif /* __ASM_POWERPC_SYSCALLS_H */
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