Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
authored by
Karolina Drobnik
and committed by
Mike Rapoport
2473bc35
9c07af20
+42
+42
tools/include/linux/mm.h
+42
tools/include/linux/mm.h
···
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TOOLS_LINUX_MM_H
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#define _TOOLS_LINUX_MM_H
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#include <linux/mmzone.h>
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#include <uapi/linux/const.h>
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
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#define PAGE_MASK (~(PAGE_SIZE - 1))
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#define PHYS_ADDR_MAX (~(phys_addr_t)0)
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#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
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#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask))
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#define ALIGN(x, a) __ALIGN_KERNEL((x), (a))
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#define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a))
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#define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
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#define __va(x) ((void *)((unsigned long)(x)))
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#define __pa(x) ((unsigned long)(x))
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#define pfn_to_page(pfn) ((void *)((pfn) * PAGE_SIZE))
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#define phys_to_virt phys_to_virt
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static inline void *phys_to_virt(unsigned long address)
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{
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return __va(address);
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}
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void reserve_bootmem_region(phys_addr_t start, phys_addr_t end);
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static inline void totalram_pages_inc(void)
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{
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}
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static inline void totalram_pages_add(long count)
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{
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}
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#endif