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/* SPDX-License-Identifier: GPL-2.0-or-later */ #ifndef _VDSO_DATAPAGE_H #define _VDSO_DATAPAGE_H #ifdef __KERNEL__ /* * Copyright (C) 2002 Peter Bergner <bergner@vnet.ibm.com>, IBM * Copyright (C) 2005 Benjamin Herrenschmidy <benh@kernel.crashing.org>, * IBM Corp. */ #ifndef __ASSEMBLY__ #include <linux/unistd.h> #include <linux/time.h> #include <vdso/datapage.h> #define SYSCALL_MAP_SIZE ((NR_syscalls + 31) / 32) #ifdef CONFIG_PPC64 struct vdso_arch_data { __u64 tb_ticks_per_sec; /* Timebase tics / sec */ __u32 dcache_block_size; /* L1 d-cache block size */ __u32 icache_block_size; /* L1 i-cache block size */ __u32 dcache_log_block_size; /* L1 d-cache log block size */ __u32 icache_log_block_size; /* L1 i-cache log block size */ __u32 syscall_map[SYSCALL_MAP_SIZE]; /* Map of syscalls */ __u32 compat_syscall_map[SYSCALL_MAP_SIZE]; /* Map of compat syscalls */ struct vdso_rng_data rng_data; struct vdso_data data[CS_BASES] __aligned(1 << CONFIG_PAGE_SHIFT); }; #else /* CONFIG_PPC64 */ struct vdso_arch_data { __u64 tb_ticks_per_sec; /* Timebase tics / sec */ __u32 syscall_map[SYSCALL_MAP_SIZE]; /* Map of syscalls */ __u32 compat_syscall_map[0]; /* No compat syscalls on PPC32 */ struct vdso_rng_data rng_data; struct vdso_data data[CS_BASES] __aligned(1 << CONFIG_PAGE_SHIFT); }; #endif /* CONFIG_PPC64 */ extern struct vdso_arch_data *vdso_data; #else /* __ASSEMBLY__ */ .macro get_datapage ptr offset=0 bcl 20, 31, .+4 999: mflr \ptr addis \ptr, \ptr, (_vdso_datapage - 999b + \offset)@ha addi \ptr, \ptr, (_vdso_datapage - 999b + \offset)@l .endm #include <asm/asm-offsets.h> #include <asm/page.h> #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ #endif /* _SYSTEMCFG_H */