diff options
Diffstat (limited to 'arch/loongarch/include/asm/set_memory.h')
| -rw-r--r-- | arch/loongarch/include/asm/set_memory.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/set_memory.h b/arch/loongarch/include/asm/set_memory.h new file mode 100644 index 000000000000..55dfaefd02c8 --- /dev/null +++ b/arch/loongarch/include/asm/set_memory.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2024 Loongson Technology Corporation Limited + */ + +#ifndef _ASM_LOONGARCH_SET_MEMORY_H +#define _ASM_LOONGARCH_SET_MEMORY_H + +/* + * Functions to change memory attributes. + */ +int set_memory_x(unsigned long addr, int numpages); +int set_memory_nx(unsigned long addr, int numpages); +int set_memory_ro(unsigned long addr, int numpages); +int set_memory_rw(unsigned long addr, int numpages); + +bool kernel_page_present(struct page *page); +int set_direct_map_default_noflush(struct page *page); +int set_direct_map_invalid_noflush(struct page *page); +int set_direct_map_valid_noflush(struct page *page, unsigned nr, bool valid); + +#endif /* _ASM_LOONGARCH_SET_MEMORY_H */ |