diff options
| author | Karolina Drobnik <karolinadrobnik@gmail.com> | 2022-02-02 12:03:04 +0100 |
|---|---|---|
| committer | Mike Rapoport <rppt@linux.ibm.com> | 2022-02-20 08:44:37 +0200 |
| commit | 2473bc35ba554003cdda8a3a0124f35433590fe7 (patch) | |
| tree | 5bb920c1cbae3931474b9a80d8866061e1926114 /tools/include | |
| parent | 9c07af207c65e6fa8063d1105356568d8b03c536 (diff) | |
tools/include: Add mm.h file
Add a stubbed mm.h file with dummy page-related definitions,
memory alignment and physical to virtual address conversions,
so they can be used in testing.
Signed-off-by: Karolina Drobnik <karolinadrobnik@gmail.com>
Signed-off-by: Mike Rapoport <rppt@kernel.org>
Link: https://lore.kernel.org/r/e8b83d96fec95f3556e80f001d9d5cbe18b8ad5f.1643796665.git.karolinadrobnik@gmail.com
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/linux/mm.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/tools/include/linux/mm.h b/tools/include/linux/mm.h new file mode 100644 index 000000000000..a03d9bba5151 --- /dev/null +++ b/tools/include/linux/mm.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _TOOLS_LINUX_MM_H +#define _TOOLS_LINUX_MM_H + +#include <linux/mmzone.h> +#include <uapi/linux/const.h> + +#define PAGE_SHIFT 12 +#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE - 1)) + +#define PHYS_ADDR_MAX (~(phys_addr_t)0) + +#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) +#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) +#define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) +#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) + +#define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) + +#define __va(x) ((void *)((unsigned long)(x))) +#define __pa(x) ((unsigned long)(x)) + +#define pfn_to_page(pfn) ((void *)((pfn) * PAGE_SIZE)) + +#define phys_to_virt phys_to_virt +static inline void *phys_to_virt(unsigned long address) +{ + return __va(address); +} + +void reserve_bootmem_region(phys_addr_t start, phys_addr_t end); + +static inline void totalram_pages_inc(void) +{ +} + +static inline void totalram_pages_add(long count) +{ +} + +#endif |