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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-05-14 21:38:46 +02:00
Thomas Huth
e6d8afd2ca
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize on the __ASSEMBLER__ macro that is provided by the compilers now. This is a completely mechanical patch (done with a simple "sed -i" statement). Cc: Dinh Nguyen <dinguyen@kernel.org> Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/*
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* Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
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* Copyright (C) 2004 Microtronix Datacom Ltd.
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*
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* MMU support based on asm/page.h from mips which is:
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*
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* Copyright (C) 1994 - 1999, 2000, 03 Ralf Baechle
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* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#ifndef _ASM_NIOS2_PAGE_H
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#define _ASM_NIOS2_PAGE_H
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#include <linux/pfn.h>
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#include <linux/const.h>
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#include <vdso/page.h>
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/*
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* PAGE_OFFSET -- the first address of the first page of memory.
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*/
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#define PAGE_OFFSET \
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(CONFIG_NIOS2_MEM_BASE + CONFIG_NIOS2_KERNEL_REGION_BASE)
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#ifndef __ASSEMBLER__
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/*
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* This gives the physical RAM offset.
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*/
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#define PHYS_OFFSET CONFIG_NIOS2_MEM_BASE
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/*
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* It's normally defined only for FLATMEM config but it's
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* used in our early mem init code for all memory models.
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* So always define it.
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*/
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#define ARCH_PFN_OFFSET PFN_UP(PHYS_OFFSET)
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#define clear_page(page) memset((page), 0, PAGE_SIZE)
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#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE)
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struct page;
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extern void clear_user_page(void *addr, unsigned long vaddr, struct page *page);
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extern void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
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struct page *to);
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/*
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* These are used to make use of C type-checking.
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*/
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typedef struct page *pgtable_t;
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typedef struct { unsigned long pte; } pte_t;
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typedef struct { unsigned long pgd; } pgd_t;
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typedef struct { unsigned long pgprot; } pgprot_t;
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#define pte_val(x) ((x).pte)
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#define pgd_val(x) ((x).pgd)
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#define pgprot_val(x) ((x).pgprot)
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#define __pte(x) ((pte_t) { (x) })
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#define __pgd(x) ((pgd_t) { (x) })
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#define __pgprot(x) ((pgprot_t) { (x) })
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extern unsigned long memory_start;
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extern unsigned long memory_end;
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extern unsigned long memory_size;
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extern struct page *mem_map;
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# define __pa(x) \
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((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET)
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# define __va(x) \
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((void *)((unsigned long)(x) + PAGE_OFFSET - PHYS_OFFSET))
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#define page_to_virt(page) \
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((void *)(((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
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# define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
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# define virt_to_page(vaddr) pfn_to_page(PFN_DOWN(virt_to_phys(vaddr)))
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# define virt_addr_valid(vaddr) pfn_valid(PFN_DOWN(virt_to_phys(vaddr)))
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# define VM_DATA_DEFAULT_FLAGS VM_DATA_FLAGS_NON_EXEC
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#include <asm-generic/memory_model.h>
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#include <asm-generic/getorder.h>
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#endif /* !__ASSEMBLER__ */
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#endif /* _ASM_NIOS2_PAGE_H */
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