Server IP : 209.38.156.173 / Your IP : 216.73.216.122 [ Web Server : Apache/2.4.52 (Ubuntu) System : Linux lakekumayuhotel 5.15.0-136-generic #147-Ubuntu SMP Sat Mar 15 15:53:30 UTC 2025 x86_64 User : root ( 0) PHP Version : 8.1.2-1ubuntu2.22 Disable Function : NONE Domains : 2 Domains MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /lib/modules/5.15.0-136-generic/build/arch/riscv/include/asm/ |
Upload File : |
/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2019 SiFive */ #ifndef _ASM_RISCV_SET_MEMORY_H #define _ASM_RISCV_SET_MEMORY_H #ifndef __ASSEMBLY__ /* * Functions to change memory attributes. */ #ifdef CONFIG_MMU int set_memory_ro(unsigned long addr, int numpages); int set_memory_rw(unsigned long addr, int numpages); int set_memory_x(unsigned long addr, int numpages); int set_memory_nx(unsigned long addr, int numpages); int set_memory_rw_nx(unsigned long addr, int numpages); static __always_inline int set_kernel_memory(char *startp, char *endp, int (*set_memory)(unsigned long start, int num_pages)) { unsigned long start = (unsigned long)startp; unsigned long end = (unsigned long)endp; int num_pages = PAGE_ALIGN(end - start) >> PAGE_SHIFT; return set_memory(start, num_pages); } #else static inline int set_memory_ro(unsigned long addr, int numpages) { return 0; } static inline int set_memory_rw(unsigned long addr, int numpages) { return 0; } static inline int set_memory_x(unsigned long addr, int numpages) { return 0; } static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; } static inline int set_memory_rw_nx(unsigned long addr, int numpages) { return 0; } static inline int set_kernel_memory(char *startp, char *endp, int (*set_memory)(unsigned long start, int num_pages)) { return 0; } #endif int set_direct_map_invalid_noflush(struct page *page); int set_direct_map_default_noflush(struct page *page); bool kernel_page_present(struct page *page); #endif /* __ASSEMBLY__ */ #ifdef CONFIG_STRICT_KERNEL_RWX #ifdef CONFIG_64BIT #define SECTION_ALIGN (1 << 21) #else #define SECTION_ALIGN (1 << 22) #endif #else /* !CONFIG_STRICT_KERNEL_RWX */ #define SECTION_ALIGN L1_CACHE_BYTES #endif /* CONFIG_STRICT_KERNEL_RWX */ #endif /* _ASM_RISCV_SET_MEMORY_H */