arch/loongarch/include/asm/set_memory.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2024 Loongson Technology Corporation Limited
   4  */
   5
   6 #ifndef _ASM_LOONGARCH_SET_MEMORY_H
   7 #define _ASM_LOONGARCH_SET_MEMORY_H
   8
   9 /*
  10  * Functions to change memory attributes.
  11  */
  12 int set_memory_x(unsigned long addr, int numpages);
  13 int set_memory_nx(unsigned long addr, int numpages);
  14 int set_memory_ro(unsigned long addr, int numpages);
  15 int set_memory_rw(unsigned long addr, int numpages);
  16
  17 bool kernel_page_present(struct page *page);
  18 int set_direct_map_default_noflush(struct page *page);
  19 int set_direct_map_invalid_noflush(struct page *page);
  20 int set_direct_map_valid_noflush(struct page *page, unsigned nr, bool valid);
  21
  22 #endif /* _ASM_LOONGARCH_SET_MEMORY_H */