arch_data.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright (C) 2002 Peter Bergner <bergner@vnet.ibm.com>, IBM
 4 * Copyright (C) 2005 Benjamin Herrenschmidy <benh@kernel.crashing.org>,
 5 * 		      IBM Corp.
 6 */
 7#ifndef _ASM_POWERPC_VDSO_ARCH_DATA_H
 8#define _ASM_POWERPC_VDSO_ARCH_DATA_H
 9
10#include <linux/unistd.h>
11#include <linux/types.h>
12
13#define SYSCALL_MAP_SIZE      ((NR_syscalls + 31) / 32)
14
15#ifdef CONFIG_PPC64
16
17struct vdso_arch_data {
18	__u64 tb_ticks_per_sec;			/* Timebase tics / sec */
19	__u32 dcache_block_size;		/* L1 d-cache block size     */
20	__u32 icache_block_size;		/* L1 i-cache block size     */
21	__u32 dcache_log_block_size;		/* L1 d-cache log block size */
22	__u32 icache_log_block_size;		/* L1 i-cache log block size */
23	__u32 syscall_map[SYSCALL_MAP_SIZE];	/* Map of syscalls  */
24	__u32 compat_syscall_map[SYSCALL_MAP_SIZE];	/* Map of compat syscalls */
25};
26
27#else /* CONFIG_PPC64 */
28
29struct vdso_arch_data {
30	__u64 tb_ticks_per_sec;		/* Timebase tics / sec */
31	__u32 syscall_map[SYSCALL_MAP_SIZE]; /* Map of syscalls */
32	__u32 compat_syscall_map[0];	/* No compat syscalls on PPC32 */
33};
34
35#endif /* CONFIG_PPC64 */
36
37#endif /* _ASM_POWERPC_VDSO_ARCH_DATA_H */