18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci#ifndef _ASM_X86_VDSO_H 38c2ecf20Sopenharmony_ci#define _ASM_X86_VDSO_H 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci#include <asm/page_types.h> 68c2ecf20Sopenharmony_ci#include <linux/linkage.h> 78c2ecf20Sopenharmony_ci#include <linux/init.h> 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci#ifndef __ASSEMBLER__ 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci#include <linux/mm_types.h> 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_cistruct vdso_image { 148c2ecf20Sopenharmony_ci void *data; 158c2ecf20Sopenharmony_ci unsigned long size; /* Always a multiple of PAGE_SIZE */ 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci unsigned long alt, alt_len; 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ci long sym_vvar_start; /* Negative offset to the vvar area */ 208c2ecf20Sopenharmony_ci 218c2ecf20Sopenharmony_ci long sym_vvar_page; 228c2ecf20Sopenharmony_ci long sym_pvclock_page; 238c2ecf20Sopenharmony_ci long sym_hvclock_page; 248c2ecf20Sopenharmony_ci long sym_timens_page; 258c2ecf20Sopenharmony_ci long sym_VDSO32_NOTE_MASK; 268c2ecf20Sopenharmony_ci long sym___kernel_sigreturn; 278c2ecf20Sopenharmony_ci long sym___kernel_rt_sigreturn; 288c2ecf20Sopenharmony_ci long sym___kernel_vsyscall; 298c2ecf20Sopenharmony_ci long sym_int80_landing_pad; 308c2ecf20Sopenharmony_ci}; 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_ci#ifdef CONFIG_X86_64 338c2ecf20Sopenharmony_ciextern const struct vdso_image vdso_image_64; 348c2ecf20Sopenharmony_ci#endif 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci#ifdef CONFIG_X86_X32 378c2ecf20Sopenharmony_ciextern const struct vdso_image vdso_image_x32; 388c2ecf20Sopenharmony_ci#endif 398c2ecf20Sopenharmony_ci 408c2ecf20Sopenharmony_ci#if defined CONFIG_X86_32 || defined CONFIG_COMPAT 418c2ecf20Sopenharmony_ciextern const struct vdso_image vdso_image_32; 428c2ecf20Sopenharmony_ci#endif 438c2ecf20Sopenharmony_ci 448c2ecf20Sopenharmony_ciextern void __init init_vdso_image(const struct vdso_image *image); 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_ciextern int map_vdso_once(const struct vdso_image *image, unsigned long addr); 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci#endif /* __ASSEMBLER__ */ 498c2ecf20Sopenharmony_ci 508c2ecf20Sopenharmony_ci#endif /* _ASM_X86_VDSO_H */ 51